China University of Mining and Technology

Chine

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        International 843
        États-Unis 228
        Canada 110
Date
Nouveautés (dernières 4 semaines) 8
2024 mars (MACJ) 9
2024 février 4
2024 janvier 4
2023 décembre 4
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Classe IPC
E21F 7/00 - Procédés ou dispositifs pour enlever les gaz, avec ou sans utilisation ultérieure de ceux-ci à une fin quelconque 53
E21C 41/18 - Procédés d'exploitation minière souterraine; Tracés à cet effet pour la lignite ou le charbon 44
E21F 15/00 - Procédés ou dispositifs pour mettre en place les matériaux de remblayage dans les travaux du fond 44
E21F 17/18 - Adaptations particulières des dispositifs de signalisation ou d'alarme 36
E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures 30
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Statut
En Instance 42
Enregistré / En vigueur 1 139
Résultats pour  brevets
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1.

UNMANNED AERIAL VEHICLE-AIDED OVER-THE-AIR COMPUTING SYSTEM BASED ON FULL-DUPLEX RELAY AND TRAJECTORY AND POWER OPTIMIZATION METHOD THEREOF

      
Numéro d'application 18124751
Statut En instance
Date de dépôt 2023-03-22
Date de la première publication 2024-03-28
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Li, Song
  • Sun, Yanjing
  • Wang, Bowen
  • Zhou, Yu
  • Yun, Xiao
  • Chen, Ruirui
  • Li, Jiaqi

Abrégé

Disclosed is an unmanned aerial vehicle (UAV)-aided over-the-air computing system based on full-duplex relay and a trajectory and power optimization method thereof. The UAV-aided over-the-air computing system adopts the UAV as a full-duplex relay for data fusing and forwarding. The method of the application aims at minimizing an average mean square error of over-the-air computing, and solves an optimization problem under constraints of sensor transmitting power, information transmission rate, UAV trajectory and denoising factor. For an overall joint optimization problem, each optimization variable is determined one by one by an alternative optimization method according to the high coupling of optimization variables.

Classes IPC  ?

  • G08G 5/00 - Systèmes de commande du trafic aérien

2.

ISOLATED OVERBURDEN GROUTING FILLING METHOD FOR COAL GANGUE UNDERGROUND EMISSION REDUCTION

      
Numéro d'application 18275409
Statut En instance
Date de dépôt 2022-05-27
Date de la première publication 2024-03-28
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Xuan, Dayang
  • Li, Jian
  • Xu, Jialin

Abrégé

An isolated overburden grouting filling method for coal gangue underground emission reduction includes determining a grouting filling key stratum according to information of a coal face; constructing a directional borehole from an underground tunnel to the inside of the grouting filling key stratum; constructing a plurality of branch holes downward in a main hole of the directional borehole; and by establishing a grouting filling system under a mine, gangue obtained from excavation gangue of the mine and gangue sorting being made into a filling slurry by means of breaking and grinding, and the filling slurry filling fractures below the key stratum through the directional borehole. The gangue generated from a mine is directly made into a filling slurry under the mine and then fills overburden mining-induced fractures, thereby achieving harmless disposal of the gangue, effectively supporting a key stratum, and controlling stratum movement and surface subsidence.

Classes IPC  ?

  • E21B 7/04 - Forage dirigé
  • E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forage; Forage et tubage simultanés des trous de forage
  • E21F 15/06 - Remblayage mécanique

3.

SPIRAL CONE SELF-DIAGNOSIS PRESSURE REDUCTION SYSTEM FOR WEIGHTLESSNESS SCALE AND SELF-DIAGNOSIS METHOD THEREOF

      
Numéro d'application CN2023101273
Numéro de publication 2024/060729
Statut Délivré - en vigueur
Date de dépôt 2023-06-20
Date de publication 2024-03-28
Propriétaire
  • JIANGSU BAILING WEIGHING INSTRUMENT MANUFACTURING CO., LTD. (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Jiang, Fan
  • Ma, Jinlei
  • Sun, Wenjie
  • Zhang, Wenhai
  • Liu, Anlin
  • Zheng, Peng
  • Zhang, Ying
  • Liang, Defeng
  • Xie, Ruilin
  • Zhan, Xiaoqing
  • Meng, Nana
  • Chen, Tao

Abrégé

Disclosed in the present invention are a spiral cone self-diagnosis pressure reduction system for a weightlessness scale and a self-diagnosis method thereof. The system comprises a suspension frame fixed in a metering bin; a supporting platform is fixed on a bottom plate of the suspension frame; a plurality of coils are provided on the supporting platform and fixed to a base; a spiral cone is rotatably connected to the base; the spiral cone is rotatably connected to the upper end of the base and a base body of the spiral cone is in the shape of a bamboo hat; the upper end of the spiral cone corresponds to a feeding port of the metering bin, and the outer surface of the spiral cone is provided with a spiral blade. According to the present invention, the rotatable spiral cone is used for reducing the pressure of high-speed materials, and the contact positions of the materials and the spiral blade are changed constantly, so that the wear of the materials on the spiral cone is uniformly distributed; the materials are more uniformly dispersed in the metering bin due to being subjected to the rotation of the spiral blade, thereby avoiding the contact wear on a fixed region of the metering bin; and by means of feedback information of a display control unit and an alarm unit, a worker is reminded to replace the spiral cone in time.

Classes IPC  ?

  • G01N 27/00 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques
  • H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
  • H02J 7/32 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge de batteries par un ensemble comprenant une machine motrice non électrique
  • H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p.ex. à des turbines

4.

FLY ASH-BASED FIRE-PREVENTION AND EXTINGUISHING MATERIAL WITH CARBON DIOXIDE MINERALIZED AND STORED, AND PREPARATION METHOD THEREOF

      
Numéro d'application 18462383
Statut En instance
Date de dépôt 2023-09-06
Date de la première publication 2024-03-21
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Qin, Botao
  • Shao, Xu
  • Shi, Quanlin
  • Yang, Yixuan
  • Ma, Zujie
  • Jiang, Wenjie
  • Yang, Hongqi
  • Sun, Hongbiao
  • Meng, Qingni
  • Wei, Dejun

Abrégé

A fly ash-based fire-prevention and extinguishing material with carbon dioxide mineralized and stored, and a preparation method thereof are provided. The preparation method includes: separately weighing 100 parts to 120 parts of water, 1 part to 3 parts of a solid strong alkali, and 20 parts to 40 parts of a fly ash as raw materials, pouring the raw materials into a reactor successively to obtain a resulting mixture, and stirring the resulting mixture at a high rotational speed; adding 10 parts to 20 parts of a solubilizing agent to the reactor, sealing the reactor, introducing carbon dioxide to the reactor at room temperature to maintain a carbon dioxide pressure to obtain a resulting slurry, and stirring the resulting slurry at a high rotational speed; and further introducing carbon dioxide into the reactor to increase the carbon dioxide pressure, and stirring the resulting slurry at a low rotational speed.

Classes IPC  ?

  • A62D 1/06 - Compositions pour éteindre les incendies; Emploi de produits chimiques pour éteindre les incendies contenant des composants produisant du gaz par réaction chimique

5.

COOPERATIVE CONTROL METHOD FOR MULTI-CHANNEL BRAKING SYSTEM OF MINE HOIST

      
Numéro d'application CN2023110982
Numéro de publication 2024/055769
Statut Délivré - en vigueur
Date de dépôt 2023-08-03
Date de publication 2024-03-21
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Tang, Yu
  • Zhu, Zhencai
  • Shen, Gang
  • Lu, Hao
  • Peng, Yuxing
  • Zhou, Gongbo
  • Xie, Hui
  • Wang, Wei
  • Bai, Deen
  • Wang, Qingguo

Abrégé

A cooperative control method for a multi-channel braking system of a mine hoist. The abrasion loss of a brake shoe is obtained by means of detecting, in real time, position information of the brake shoe of each disk brake; an abrasion grade is divided by means of the abrasion degree of the brake shoe; three braking force distribution modes, namely, equal distribution, proportional distribution and exponential distribution, are formulated according to the abrasion grade, so as to dynamically adjust a set braking pressure of each disk brake; and each disk brake tracks and controls the set braking pressure by using a feedback pressure signal of an oil pressure sensor and using a pressure closed-loop control method. Therefore, the cooperative braking control which is based on the abrasion loss of a brake shoe and over a multi-channel braking system of a mine hoist is realized, and the problems of the service life of one or more disk brakes being shortened, the braking performance thereof being reduced, the braking thereof failing, etc., due to uneven abrasion of brake shoes are prevented, such that the usage safety and reliability of the braking system are improved.

Classes IPC  ?

  • B66D 5/14 - Freins de grues, d'ascenseurs, de palans ou de treuils opérant sur des tambours, des cylindres ou des cordes avec effet axial comportant des disques
  • B66D 5/28 - Dispositifs de fonctionnement pneumatiques ou hydrauliques spécialement adaptés aux mécanismes d'enroulement, p.ex. dans les puits d'extraction de mines
  • F16B 21/08 - Dispositifs de fixation largables à action rapide dans lesquels la broche ou l'ergot ont une partie élastique
  • F16D 66/02 - Appareils indicateurs d'usure
  • G06F 17/10 - Opérations mathématiques complexes

6.

Time service and positioning network system for underground chain-shaped large space in coal mine

      
Numéro d'application 18260532
Numéro de brevet 11930463
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de la première publication 2024-03-12
Date d'octroi 2024-03-12
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Zhou, Gongbo
  • Zhang, Chuansheng
  • Jiang, Fan
  • Han, Lianfeng
  • Wang, Shudong
  • Liu, Xin
  • Gu, Duifang
  • Wang, Tao
  • Wang, Chuansong
  • Wang, Libing
  • Liu, Niansheng
  • Shi, Fuxing
  • Liu, Dongrun
  • Li, Lizheng
  • Zhu, Zhencai

Abrégé

The present disclosure discloses a time service and positioning network system for an underground chain-shaped large space in a coal mine. The system adopts a base station-level network internal time synchronization method which takes an optical fiber time service as a main part and takes a satellite time service as an auxiliary part to construct a time service and positioning network system with an unified time within the ad-hoc network base stations, based on the ad-hoc network base stations linearly arranged in the underground chain-shaped large space in the coal mine. Through the network construction, the network stabilization and the network application, the system unifies the time reference of the base station-level network and improves the positioning accuracy of the network application by utilization of the base station-level network internal time synchronization method. The system integrates the time service and positioning network system suitable for the underground coal mine and expands the network applicability based on an existing underground communication ring network.

Classes IPC  ?

  • H04W 56/00 - Dispositions de synchronisation
  • H04B 10/27 - Dispositions pour la mise en réseau
  • H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p.ex. gestion de la mobilité
  • H04W 84/22 - Réseaux auto-organisés, p.ex. réseaux ad hoc ou réseaux de détection avec accès aux réseaux câblés

7.

METHOD AND SYSTEM FOR REDUCING DISCHARGE FLUCTUATION OF SPIRALLY CONVEYING MATERIALS FOR WEIGHTLESSNESS SCALE

      
Numéro d'application CN2023101280
Numéro de publication 2024/045786
Statut Délivré - en vigueur
Date de dépôt 2023-06-20
Date de publication 2024-03-07
Propriétaire
  • JIANGSU BAILING WEIGHING INSTRUMENT MANUFACTURING CO., LTD. (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Jiang, Fan
  • Ma, Jinlei
  • Sun, Wenjie
  • Zhang, Wenhai
  • Liu, Anlin
  • Zheng, Peng
  • Zhang, Ying
  • Liang, Defeng
  • Xie, Ruilin
  • Meng, Nana
  • Zhan, Xiaoqing
  • Yao, Jun
  • Chen, Tao

Abrégé

A method and system for reducing the discharge fluctuation of spirally conveying materials for a weightless scale. The method comprises the following steps: 1, optimizing a conveying parameter of a spiral conveyor by means of other optimization algorithms such as a genetic algorithm, so as to ensure a relatively high conveying capacity; 2, optimizing a structural parameter of a funnel (302) by means of other optimization algorithms such as the genetic algorithm, so as to reduce the fluctuation of the quantity of materials falling from a discharge port of the funnel (302); and 3, providing an anti-blocking mechanism to monitor, in real time, materials in the funnel (302) and process the problem of material blocking. The method and system can effectively reduce the fluctuation of outputting materials, and ensure a high material conveying capacity, thereby improving the efficiency of process production.

Classes IPC  ?

  • G01G 13/16 - Moyens pour vidanger automatiquement des récipients de pesée, l'opération étant commandée par le mécanisme de pesée
  • B65G 33/14 - Transporteurs rotatifs à vis ou à hélice pour matériaux solides fluents comportant une vis ou plusieurs vis enfermées dans un carter tubulaire
  • B65G 43/08 - Dispositifs de commande actionnés par l'alimentation, le déplacement ou le déchargement des objets ou matériaux
  • B65G 47/44 - Aménagements ou utilisation des trémies ou des colonnes de descente
  • B65G 69/00 - Mesures auxiliaires ou dispositifs utilisés en liaison avec le chargement ou le déchargement

8.

ROADWAY SURROUNDING ROCK STRESS STATE DETECTION METHOD BASED ON THREE-DIMENSIONAL POTENTIAL RESPONSE

      
Numéro d'application CN2023124177
Numéro de publication 2024/046501
Statut Délivré - en vigueur
Date de dépôt 2023-10-12
Date de publication 2024-03-07
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Li, Zhonghui
  • Shan, Tiancheng
  • Wang, Xiaoran
  • Niu, Yue
  • Zhang, Xin
  • Zhang, Chaolin
  • Chen, Dong
  • Cai, Chao
  • Yin, Shan

Abrégé

Disclosed in the present invention is a roadway surrounding rock stress state detection method based on three-dimensional potential response. The method comprises: collecting potential data of each potential measurement point in a drill hole; then, spreading a roadway contour as a plane along a side line of the strike of a roadway; performing spatial interpolation on all potential measurement points, so as to obtain a three-dimensional potential imaging body, and extracting and drawing a three-dimensional abnormal potential isosurface model; and performing unilateral inversion on an outer side of a drilling area by means of potential measurement points on a potential measurement line at the highest position, and extracting and drawing a three-dimensional abnormal potential inversion probability isosurface model by using a radial basis function surface interpolation method. In the present invention, a three-dimensional potential response digital model, which is jointly formed by a three-dimensional abnormal potential isosurface model and a three-dimensional abnormal potential inversion probability isosurface model, visualizes spatial potential distribution features of roadway surrounding rocks, clearly presents a spatial range, a strike and a development trend of an area in which stress is abnormal, and accurately distinguishes and determines an area for roadway stress state and abnormal potential response.

Classes IPC  ?

  • G06T 17/10 - Description de volumes, p.ex. de cylindres, de cubes ou utilisant la GSC [géométrie solide constructive]

9.

MASSIVE DATA-DRIVEN METHOD FOR AUTOMATICALLY LOCATING MINE MICROSEISMIC SOURCE

      
Numéro d'application 18078708
Statut En instance
Date de dépôt 2022-12-09
Date de la première publication 2024-03-07
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Cao, Anye
  • Wang, Changbin
  • Yang, Xu
  • Liu, Yaoqi
  • Li, Sen
  • Niu, Qiang
  • Dou, Linming

Abrégé

Disclosed is a massive data-driven method for automatically locating a mine microseismic source, including: constructing a microseismic wave calibration data set by using a large-scale seismic data set containing seismic signals and non-seismic signals; constructing a pre-training calibration model based on a full convolution neural network through deep learning of a seismic wave calibration data set; using microseismic data of mine sites for transfer learning of an initial arrival time calibration model to construct an arrival time automatic calibration model suitable for mine microseismic signals; and automatically as well as accurately locating mine microseismic events based on an isokinetic homogeneous isotropic velocity model by using an optimization algorithm to deduce arrival time errors and through repeated iteration and fine-tuning.

Classes IPC  ?

10.

2 IN PARTITIONED SECTIONS

      
Numéro d'application CN2023121010
Numéro de publication 2024/041668
Statut Délivré - en vigueur
Date de dépôt 2023-09-25
Date de publication 2024-02-29
Propriétaire
  • PING'AN COAL MINING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD. (Chine)
  • PING'AN COAL MINE GAS CONTROL NATIONAL ENGINEERING RESEARCH CENTER CO., LTD. (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Wang, Chuanbing
  • Feng, Anxiang
  • Tong, Xiaozhang
  • Zhou, Yanan
  • Yang, Yang
  • Zhou, Tao
  • Ye, Chunhui
  • Chen, Benliang
  • Cao, Tengfei
  • Xu, Jizhao
  • Xu, Hexiang
  • Zhai, Cheng

Abrégé

222222 gas may be achieved.

Classes IPC  ?

  • E21F 17/16 - Modification des passages ou chambres des mines pour le stockage, spécialement de liquides ou de gaz

11.

CONTROL METHOD FOR COMPOSITE METAL IONS IN SOLID WASTE LANDFILL

      
Numéro d'application CN2023083727
Numéro de publication 2024/036966
Statut Délivré - en vigueur
Date de dépôt 2023-03-24
Date de publication 2024-02-22
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Huang, Jiu
  • Li, Peng

Abrégé

A control method for composite metal ions in a solid waste landfill, relating to the field of metal pollution treatment in solid waste landfills. Permeable adsorption walls capable of adsorbing harmful substances in leachate are built around a solid waste landfill. If the solid waste landfill is arranged against a mountain, there is only a need to build a permeable adsorption wall on the outer side surface of the solid waste landfill not surrounded by the mountain, and if groundwater exists beneath the solid waste landfill, the built permeable adsorption wall needs to extend underground to an underground aquiclude so as to prevent leachate in the solid waste landfill from flowing out along with the groundwater. The permeable adsorption wall sequentially consists of an inherent soil layer, an inherent soil layer and attapulgite mixed layer, an inherent soil layer and attapulgite @ manganese dioxide mixed layer, an inherent soil layer and attapulgite @ copper sulfide mixed layer, and an inherent soil layer.

Classes IPC  ?

  • B01J 20/12 - Argiles d'origine naturelle ou terres décolorantes
  • B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
  • C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
  • C02F 101/20 - Métaux lourds ou leurs composés
  • C02F 103/06 - Eau souterraine contaminée ou eau de lessivage

12.

METHOD FOR CONTROLLING COMPOSITE METAL IONS IN SOLID WASTE DUMP

      
Numéro de document 03224806
Statut En instance
Date de dépôt 2023-03-24
Date de disponibilité au public 2024-02-15
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Huang, Jiu
  • Li, Peng

Abrégé

The present invention discloses a method for controlling composite metal ions in a solid waste dump, and belongs to the field of metal pollution treatment for solid waste dumps. A permeable adsorption wall that can adsorb the harmful substances in a leachate is built up around a solid waste dump; specifically, if the solid waste dump is arranged against a mountain, it is only necessary to build up the permeable adsorption wall around the outer side of the solid waste dump that is not surrounded by the mountain; if there is subterranean water below the solid waste dump, the constructed permeable adsorption wall must extend downward to a subterranean aquiclude to prevent the leachate of the solid waste dump from flowing out with subterranean water; the permeable adsorption wall is composed of a raw soil layer, a mixed layer of raw soil layer and an attapulgite clay , a mixed layer of raw soil layer and an attapulgite clay @ manganese dioxide a mixed layer of raw soil layer and an attapulgite clay @ copper sulfide , and a raw soil layer , which are arranged sequentially . This method can realize stable and efficient entrapment and removal of harmful metals, provide a product with strong stability, flexible operation, and green ness , and has a high technical guidance and application significance for the water pollution control on composite metal ions produced in coal mining and non ferrous metal smelting and heap leaching processes.

Classes IPC  ?

  • B09B 3/10 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant une étape d'adsorption

13.

HIGH-PRECISION POSITIONING SYSTEM FOR UNDERGROUND MONORAIL HOIST IN COAL MINE AND POSITIONING METHOD THEREOF

      
Numéro d'application 18247874
Statut En instance
Date de dépôt 2022-09-30
Date de la première publication 2024-02-08
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Zhang, Yidong
  • Peng, Yuxing
  • Tang, Yu
  • Chen, Hua
  • Xu, Zaigang
  • Wang, Mingzhong
  • Du, Mai
  • Hu, Hengzhen
  • Zheng, Fuping

Abrégé

A high-precision positioning system for a monorail hoist in a mine includes two gear carriers symmetrically arranged on both sides of an I-beam track. Each of the gear carriers includes a positioning wheel and a plurality of travelling wheels. The travelling wheels are travelling on an upper end face of a bottom plate of the I-beam track, and the positioning wheel is in engagement transmission with a rack at a lower end of the bottom plate of the I-beam track. The gear carriers include an installation bracket and a connecting seat configured to connect the monorail hoist. The installation bracket includes an inertial measuring unit and a single-chip microcomputer that are electrically connected with each other. The positioning wheel includes a rotation angle sensor and the rotation angle sensor is electrically connected to the single-chip microcomputer. A headstock at both ends of the monorail hoist includes a coordinate updating unit.

Classes IPC  ?

  • B66C 13/46 - Indicateurs de position pour charges suspendues ou pour éléments de grues
  • B66C 11/06 - Chariots suspendus roulant sur monorail

14.

METHOD FOR REGULATING QUALITY OF OIL DERIVED FROM PLASTIC WASTES BY SUPERCRITICAL HYDROTHERMAL LIQUEFACTION

      
Numéro d'application 18364282
Statut En instance
Date de dépôt 2023-08-02
Date de la première publication 2024-02-08
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Zhao, Peitao
  • Xu, Yikun
  • Fu, Binbin
  • Jia, Guangchao
  • Gai, Didi
  • Zhong, Yuqian

Abrégé

The present disclosure provides a method for regulating a quality of an oil derived from plastic wastes by supercritical hydrothermal liquefaction, including catalyst synthesis, calcination, and supercritical hydrothermal liquefaction. In the present disclosure, a catalyst is prepared by the method, and then applied in regulating the quality of the oil derived from plastic wastes by supercritical hydrothermal liquefaction. This not only reduces cost, but also optimizes a reaction process, such that plastics can be recycled as resources, thereby reducing the carbon emissions and promoting the development of circular economy. The method has strong practicability and functionality, and can be widely used in the technical fields of harmless treatment and resource utilization of plastic waste.

Classes IPC  ?

  • C10G 11/02 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures caractérisé par le catalyseur utilisé
  • B01J 23/78 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des métaux alcalins ou alcalino-terreux ou du béryllium
  • B01J 37/03 - Précipitation; Co-précipitation

15.

Industrial Process Soft Sensor Method Based on Federated Stochastic Configuration Network

      
Numéro d'application 18002274
Statut En instance
Date de dépôt 2022-06-23
Date de la première publication 2024-01-25
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Dai, Wei
  • Wang, Lanhao
  • Dong, Liang
  • Hu, Mengjie
  • Wang, Guanghui
  • Nan, Jing
  • Ji, Langlong
  • Ao, Yanshuang
  • Wang, Dianhui

Abrégé

Provided is an industrial process soft sensor method based on a federated stochastic configuration network, including: acquiring historical industrial process auxiliary data and corresponding product quality data; finding out optimal hidden layer parameters; processing, by a central server, to obtain global parameters, and downloading same to each factory as hidden layer parameters for a local model; obtaining output weights of a current network through an optimization algorithm, and uploading same to the server for weighted aggregation; and when the number of hidden layer nodes in a current network exceeds a maximum given value or a residual in current iteration meets an expected tolerance, completing modeling to obtain the global federated stochastic configuration network without adding new nodes. The present disclosure effectively improves prediction performance of models and protects data privacy, thus meeting industrial process soft sensor requirements.

Classes IPC  ?

  • G05B 13/02 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
  • G06N 3/045 - Combinaisons de réseaux

16.

Liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof

      
Numéro d'application 18354221
Numéro de brevet 11932586
Statut Délivré - en vigueur
Date de dépôt 2023-07-18
Date de la première publication 2024-01-25
Date d'octroi 2024-03-19
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Luo, Ning
  • Chai, Yabo
  • Liang, Hanliang
  • Zhang, Haohao
  • Zhai, Cheng
  • Zhou, Jianan
  • Li, Penglong

Abrégé

A liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof are provided. The liquid explosive includes raw materials in parts by mass: a main explosive with positive oxygen balance, a guest regulator and isolation microcapsules; the main explosive with the positive oxygen balance includes raw materials in parts by mass: monomethylamine nitrate, ammonium nitrate, sodium nitrate, water, guar gum, sodium nitrite, a high-temperature resistant regulator with a low detonation velocity and a surfactant; the guest regulator includes raw materials in parts by mass: a reducing agent and a density regulator; the isolation microcapsules include raw materials in parts by mass: porous hollow microbeads, a pore plugging agent and wall materials of pressure-resistant microcapsules; the guest regulator exists in the porous hollow microbeads of the isolation microcapsules.

Classes IPC  ?

  • C06B 25/34 - Compositions contenant un composé organique nitré le composé étant une amine nitrée acyclique, cyclanique ou hétérocyclique
  • C06B 23/00 - Compositions caractérisées par des constituants non explosifs ou non thermiques

17.

METHOD AND SYSTEM FOR SIMULATING CONTACT AND INTERACTION BETWEEN SUPPORT MEMBER AND CHAMBER SURROUNDING ROCK MASS

      
Numéro d'application 18352344
Statut En instance
Date de dépôt 2023-07-14
Date de la première publication 2024-01-18
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yin, Qian
  • Wu, Jiangyu
  • Jing, Hongwen
  • Jiang, Zheng
  • Deng, Tianci
  • Pu, Hai
  • Zhang, Qiang
  • Meng, Bo

Abrégé

A method and a system for simulating contact and interaction between a support member and a chamber surrounding rock mass are provided in the application. The method includes: obtaining a support scheme of a roadway to be simulated, dividing the roadway to be simulated based on the support scheme to obtain several roadway sections; obtaining physical and mechanical parameters of each rock stratum in each roadway section and an occurrence state of the roadway surrounding rock; constructing particle flow numerical models corresponding to the roadway section; through the particle flow numerical models of every two adjacent roadway sections, obtaining a particle flow meso-structural evolution model of the roadway to be simulated; obtaining meso-mechanical parameters of the roadway to be simulated based on the particle flow numerical models, calibrating the meso-mechanical parameters through the physical and mechanical parameters, establishing the particle flow meso-structural evolution model of the roadway to be simulated.

Classes IPC  ?

  • G06F 30/25 - Optimisation, vérification ou simulation de l’objet conçu utilisant des méthodes basées sur les particules

18.

METHOD FOR EXTRACTING AND RECOVERING GOLD FROM AQUEOUS SOLUTION

      
Numéro d'application CN2022128743
Numéro de publication 2024/000970
Statut Délivré - en vigueur
Date de dépôt 2022-10-31
Date de publication 2024-01-04
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Li, Peng
  • Duan, Chenlong
  • Dai, Guofu

Abrégé

A method for extracting and recovering gold from an aqueous solution, the method comprising the following steps: (1) extracting gold from a water body by means of electric flocculation, wherein by using an electrolytic cell, gold in an aqueous solution is captured by means of a hydroxide of iron, which is generated in situ by means of an electric flocculation reaction, and is reduced in situ into gold nanoparticles; (2) pickling and dissolving the precipitated iron sludge, wherein the obtained precipitate is dissolved in nitric acid, and after a washing treatment, iron flocs dissolve; and (3) separating and recovering gold by means of a nanofiltration membrane system, wherein the pickled solution of the obtained precipitated iron sludge is subjected to an interception treatment by using a nanofiltration membrane, so as to separate the solution and a nanogold elementary substance, and the latter is washed with water to obtain a gold elementary substance. The extraction and recovery method has the characteristics of a high gold extraction efficiency, a low cost, a simple technological process, high stability and being environmentally friendly; in addition, the method can achieve high-grade recovery of a gold elementary substance, and has relatively strong technical guidance and practical engineering application significance for extraction and recovery of gold during various gold smelting and extraction processes.

Classes IPC  ?

19.

Method for Extracting and Recovering Gold from Aqueous Solution

      
Numéro d'application 18022571
Statut En instance
Date de dépôt 2022-10-31
Date de la première publication 2023-12-28
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Li, Peng
  • Duan, Chenlong
  • Dai, Guofo

Abrégé

The present disclosure provides a method for extracting and recovering gold from an aqueous solution, the method including: (1) gold extraction from an aqueous solution through electrocoagulation, in which an electrocoagulation reaction is performed in an electrolytic cell to produce iron hydroxide in-situ, so as to capture gold in the aqueous solution and reduces the gold into gold nanoparticles in-situ; (2) pickling and liquefaction of the precipitated iron sludge, in which the obtained precipitate is dissolved in nitric acid to dissolve iron flocs after washing treatment; and (3) separation and recovery of gold through a nanofiltration membrane system, in which the resulting solution after pickling the precipitated iron sludge is subjected to cut-off treatment using a nanofiltration membrane to separate nano-sized elemental gold from the solution, and then the resultant is washed with water to obtain elemental gold. The extraction and recovery method of the present disclosure has characteristics of high gold extraction efficiency (up to 100%), low cost, simple process, good stability and environmental protection, and can recover high-grade elemental gold (with a comprehensive recovery rate greater than 95%). The method is of an important significance for technical guidance and practical engineering application for the extraction and recovery of gold in various gold smelting and extraction processes.

Classes IPC  ?

  • C22B 11/00 - Obtention des métaux nobles
  • B01D 61/02 - Osmose inverse; Hyperfiltration
  • B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétés; Procédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
  • C23G 1/08 - Fer ou acier
  • C25C 1/20 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions des métaux nobles

20.

BORING MACHINE STRUCTURE ACHIEVING FRONT SUPPORT, AND WORKING METHOD

      
Numéro d'application CN2022129884
Numéro de publication 2023/240903
Statut Délivré - en vigueur
Date de dépôt 2022-11-04
Date de publication 2023-12-21
Propriétaire
  • STATE KEY LABORATORY OF SHIELD MACHINE AND BORING TECHNOLOGY (Chine)
  • CHINA RAILWAY TUNNEL GROUP CO., LTD. (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Zhenxing
  • Zeng, Chuigang
  • Zhang, Kai
  • Zhao, Yi
  • Li, Fengyuan
  • Zhao, Hailei
  • Wang, Liming
  • You, Jinhu
  • Wang, Jun
  • Zhai, Qianzhi
  • Feng, Huanhuan
  • Xie, Tao
  • Guo, Xinqiang
  • Jiao, Yifeng
  • Zhang, Haitao

Abrégé

A boring machine structure achieving front support, and a working method, aiming at providing a boring machine structure which achieves front support and is more compact. A front shield (3) is provided behind a cutterhead (1), and is in the shape of a truncated pyramid; a protective net assembly mechanism is provided outside the front shield; an outer shield (7) is provided behind the protective net assembly mechanism; the structure of the cutterhead (1) is internally provided with a rock slag leading-out channel (2), which is connected to a feeding end of a rock slag conveying mechanism (4); a protective housing (6) is sleeved outside the rock slag conveying mechanism (4); and supporting shoes (8) and a support assembly conveying platform (9) are provided behind the outer shield (7) and on the protective housing (6).

Classes IPC  ?

  • E21D 9/06 - Exécution en utilisant un bouclier de percement
  • E21D 9/087 - Exécution en utilisant un bouclier de percement avec des moyens complémentaires de foration ou d'incision avec une tête de forage de type rotatif coupant simultanément toute la section transversale, c. à d. tunneliers pleine-face
  • E21D 9/04 - Creusement de galeries en terrain de faible consistance; Dispositifs à cet effet non prévus ailleurs
  • E21D 9/12 - Dispositifs pour enlever ou transporter les matières d'excavation ou déblais; Plates-formes de travail ou de chargement
  • E21D 11/20 - Profils particuliers, p.ex. ondulés
  • E21D 11/40 - Dispositifs ou appareils pour la manutention ou le placement des unités de revêtement des tunnels ou des galeries

21.

HIGH-ENTROPY ALLOY-BASED NANO SUPER-HARD COMPOSITE MATERIAL REINFORCED BY EMBEDDED PARTICLES, AND PREPARATION METHOD THEREFOR

      
Numéro d'application CN2023093815
Numéro de publication 2023/231744
Statut Délivré - en vigueur
Date de dépôt 2023-05-12
Date de publication 2023-12-07
Propriétaire
  • CHANGSHU TIANDI COAL MINING EQUIPMENT CO., LTD. (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Dai, Jianping
  • Chen, Zheng
  • Chen, Xuan
  • Fan, Yu
  • Wang, Yeqing
  • Xue, Yu
  • Cheng, Chunlong
  • Wang, Lin
  • Xu, Jie
  • Liu, Kun

Abrégé

The present application relates to the technical field of metal-based composite materials. Disclosed are a high-entropy alloy-based nano super-hard composite material reinforced by embedded particles, and a preparation method therefor. Reinforcing-phase particles and a high-entropy alloy matrix in the composite material have good wettability and have good interface bonding, such that the wear resistance of the composite material can be improved, and the shedding of reinforcing-phase particles during friction can be effectively avoided. The composite material comprises a high-entropy alloy matrix and reinforcing-phase particles, wherein the reinforcing-phase particles are dispersed in the high-entropy alloy matrix; the high-entropy alloy matrix comprises a basic matrix and a reinforcing matrix, the basic matrix comprising Al, Co, Cr, Fe, Ni and Mn, and the reinforcing matrix comprising Mo, Nb and Zr; and the reinforcing-phase particles comprise WC and TiC.

Classes IPC  ?

  • C22C 32/00 - Alliages non ferreux contenant entre 5 et 50% en poids d'oxydes, de carbures, de borures, de nitrures, de siliciures ou d'autres composés métalliques, p.ex. oxynitrures, sulfures, qu'ils soient soient ajoutés comme tels ou formés in situ
  • B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
  • B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p.ex. par broyage, meulage ou écrasement à la meule
  • B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p.ex. nanocomposites
  • B82Y 40/00 - Fabrication ou traitement des nanostructures
  • C22C 1/10 - Alliages contenant des composants non métalliques

22.

HOISTING WIRE ROPE TENSION MEASUREMENT METHOD BASED ON VISUAL VIBRATION FREQUENCY IDENTIFICATION

      
Numéro d'application CN2022123341
Numéro de publication 2023/231262
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-12-07
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD. (Chine)
Inventeur(s)
  • Peng, Yuxing
  • Zhu, Zhencai
  • Du, Qingyong
  • Chang, Xiangdong
  • Hu, Changhua
  • Cao, Guohua
  • Zhou, Gongbo
  • Lu, Hao
  • Tang, Wei
  • Ren, Yinan

Abrégé

Disclosed in the present invention is a hoisting wire rope tension measurement method based on visual vibration frequency identification, the method comprising: processing an operation vibration image of a hoisting wire rope collected by an orthographic binocular camera, and, according to a vibration inherent frequency of the hoisting wire rope, calculating the tension borne thereby, thus completing real-time measurement of the tension of the hoisting wire rope. The present invention improves the anti-interference performance of an algorithm by means of oblique rectangle fitting, and increases the measurement precision of the algorithm by means of an absolute mean value data defective point cleaning method based on difference theory, thereby achieving a good measurement effect.

Classes IPC  ?

23.

Hoist for transferred materials in underground auxiliary transportation system and method thereof

      
Numéro d'application 18022846
Numéro de brevet 11919748
Statut Délivré - en vigueur
Date de dépôt 2022-05-23
Date de la première publication 2023-11-30
Date d'octroi 2024-03-05
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • Changzhou Development & Manufacture Centre Co., Ltd. (Chine)
  • XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD. (Chine)
Inventeur(s)
  • Ma, Chi
  • Peng, Yuxing
  • Zhu, Zhencai
  • Wang, Meilin
  • Hu, Changhua
  • Shi, Fahui
  • Xiao, Xingming
  • Qian, Jun
  • Jiang, Fan
  • Li, Yunwang
  • Wang, Dagang
  • Yu, Qihang

Abrégé

A hoist for transferred materials in an underground auxiliary transportation system and a method thereof. The hoist includes a hoist body, guiding plates mounted at two ends of the hoist body through bolts, twist locks mounted at four ends of the hoist body, a driving unit configured to drive twist locks to rotate, transmission assemblies configured to connect the twist locks with the driving unit, ejector pins configured to prevent the twist locks from rotating mistakenly, and a sensor configured to control the hoist to operate and provide protection safety.

Classes IPC  ?

  • B66C 1/66 - Eléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens mécaniques comportant des organes de saisie ayant une forme complémentaire de celle des objets à manipuler s'engageant dans des trous, des évidements ou des renflements spécialement aménagés sur les objets pour en permettre la prise
  • B66C 11/04 - Chariots suspendus
  • B66C 13/16 - Utilisation de dispositifs indicateurs de positionnement ou de pesée

24.

MINE UNDERGROUND FRACTURING AND PROPPANT INJECTION INTEGRATED APPARATUS AND CONSTRUCTION METHOD

      
Numéro d'application CN2023096204
Numéro de publication 2023/227051
Statut Délivré - en vigueur
Date de dépôt 2023-05-25
Date de publication 2023-11-30
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU USURE MINING TECHNOLOGY CO., LTD (Chine)
Inventeur(s)
  • Huang, Bingxiang
  • Li, Haoze
  • Zhao, Xinglong
  • Chen, Shuliang
  • Shao, Luying

Abrégé

Disclosed are a mine underground fracturing and proppant injection integrated apparatus and a construction method. The apparatus comprises a fracturing system and a proppant injection system. The apparatus can implement fracturing and sand-injection methods, such as high-pressure fracturing and continuous sand injection, high-pressure fracturing and pulsed sand injection, high-pressure fracturing and multi-particle-diameter/multi-type sand injection, pulsed fracturing and continuous sand injection, pulsed fracturing and pulsed sand injection, and pulse fracturing and multi-particle-diameter/multi-type sand injection, which can meet multiple mine underground requirements for fracturing and sand-injection manners. Therefore, the apparatus is universal.

Classes IPC  ?

25.

AXIAL MAGNETIC FLUX SWITCH RELUCTANCE ELECTRIC MOTOR WITH FULL-PITCH WINDING, AND MULTI-OBJECTIVE OPTIMIZATION METHOD THEREFOR

      
Numéro d'application CN2022144413
Numéro de publication 2023/221532
Statut Délivré - en vigueur
Date de dépôt 2022-12-31
Date de publication 2023-11-23
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Chen, Hao
  • Zhao, Xi
  • Yu, Fengyuan
  • Yan, Wenju
  • Zhang, Ke
  • Gong, Shilei
  • Wang, Xing
  • Chang, Xiqiang
  • Dong, Lijiang
  • Lu, Qiwei

Abrégé

The present invention belongs to the field of electric motor designs. Disclosed are an axial magnetic flux switch reluctance electric motor with a full-pitch winding, and a multi-objective optimization method therefor. The axial magnetic flux switch reluctance electric motor comprises a rotating shaft, wherein an electric motor iron core is arranged on the rotating shaft; the electric motor iron core comprises a left stator, a rotor and a right stator, which are sequentially arranged and are of annular structures; the rotating shaft is connected, by means of bearings, to end covers, on which the left stator and the right stator are fixedly mounted; the left stator and the right stator are respectively arranged in the end covers, which are located on two sides of the rotor; and housings for sealing are provided on outer edges of the end covers, on which the left stator and the right stator are mounted. The axial magnetic flux switch reluctance electric motor has a small axial length, a short magnetic flux path, a high energy conversion rate and a high torque density; the axial magnetic flux switch reluctance electric motor has a higher rated power for the same volume; and both the power density and the torque density are increased. Moreover, the axial magnetic flux switch reluctance electric motor has the advantages of realizing a large output, having a simple structure, being easily maintained, having a high reliability, etc., and therefore the axial magnetic flux switch reluctance electric motor has good engineering application value.

Classes IPC  ?

  • H02K 16/04 - Machines avec un rotor et deux stators
  • H02K 1/16 - Noyaux statoriques à encoches pour enroulements
  • H02K 1/2796 - Rotors faisant face axialement à des stators le rotor étant formé de plusieurs aimants disposés sur la circonférence dans lesquels les deux faces axiales du rotor font face à un stator
  • H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements

26.

ONLINE SOFT MEASUREMENT METHOD FOR CLEAN COAL ASH CONTENT DURING LUMP COAL SHALLOW TROUGH SORTING PROCESS

      
Numéro d'application CN2022138267
Numéro de publication 2023/221473
Statut Délivré - en vigueur
Date de dépôt 2022-12-12
Date de publication 2023-11-23
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Gui, Xiahui
  • Xing, Yaowen
  • Wang, Lanhao
  • Dai, Shiqi
  • Cao, Yijun
  • Liu, Jiongtian

Abrégé

An online soft measurement method for clean coal ash content during a lump coal shallow trough sorting process, relating to the technical field of coal sorting and processing, and solving the problem that an existing clean coal ash content prediction method during a lump coal shallow trough sorting process is complex and has poor adaptability and high cost. The method comprises: collecting data in real time, the data comprising clean coal production, tail coal production, qualified medium density and a clean coal dual-energy X-ray image; inputting an R value of each pixel point in the clean coal dual-energy X-ray image collected in real time into a trained clean coal ash content prediction main model to be processed, so as to obtain a clean coal ash content prediction value; processing the clean coal production and the tail coal production which are collected in real time to obtain clean coal yield; inputting the clean coal yield and the normalized qualified medium density into a trained clean coal ash content compensation model to be processed, so as to obtain a clean coal ash content error prediction value; and compensating the clean coal ash content prediction value with the clean coal ash content error prediction value, so as to obtain a final clean coal ash content prediction result.

Classes IPC  ?

  • G06V 10/774 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p.ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]; Séparation aveugle de source méthodes de Bootstrap, p.ex. "bagging” ou “boosting”

27.

WINDING SWITCHING TYPE SWITCHED RELUCTANCE MOTOR POWER CIRCUIT AND CONTROL METHOD THEREFOR

      
Numéro d'application CN2022144412
Numéro de publication 2023/221531
Statut Délivré - en vigueur
Date de dépôt 2022-12-31
Date de publication 2023-11-23
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Chen, Hao
  • Wang, Xing
  • Chen, Tao
  • Wang, Shaojiang
  • Zheng, Jianneng
  • Su, Zhenhua
  • Liu, Shengtao

Abrégé

The present invention relates to the field of switched reluctance motors. Disclosed are a winding switching type switched reluctance motor power circuit and a control method therefor. The circuit comprises a power converter for implementing free switching of a motor between a winding series mode and a winding parallel mode, a substantially asymmetric half-bridge circuit, and a winding mode switching circuit; the asymmetric half-bridge circuit controls the normal operation of the motor, the control method uses a double closed-loop, an outer loop is a rotating speed loop, and an inner loop is a current loop or a turn-on angle loop; the winding mode switching circuit controls the mode switching of the motor; and a current sensor is used for collecting a winding phase current, a current output torque value is obtained by combining the winding phase current and a rotor position signal measured by a position sensor, a working mode of the motor is determined by means of the actual rotating speed and torque, and a suitable winding mode switching circuit control signal is obtained. A required winding connection mode can be reasonably provided, the free switching of the motor between different modes is implemented, a rotating speed range of the motor is widened, and high-efficiency operation of the switched reluctance motor in the wide rotating speed range is implemented.

Classes IPC  ?

  • H02P 6/08 - Dispositions pour commander la vitesse ou le couple d'un seul moteur

28.

TUNNEL BORING ROBOT AND AUTOMATIC CUTTING CONTROL METHOD

      
Numéro d'application CN2022123152
Numéro de publication 2023/221368
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-11-23
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Jiang, Hongxiang
  • Zhu, Zhencai
  • Liu, Songyong
  • Shen, Gang
  • Zhang, Xiaodi
  • Zhao, Huihe
  • Li, Hongsheng

Abrégé

Disclosed is a tunnel boring robot, comprising a frame, a movement platform (10), a supporting and stabilizing mechanism (13), a milling mechanism (1), a telescopic mechanism, an oblique feeding adjusting mechanism (2), a horizontal swinging mechanism (6), a lifting mechanism and a controller (23). The milling mechanism (1) comprises: a driving unit, a milling shaft (1-3), an eccentric rotary sleeve (1-12), a high-pressure jet nozzle unit, a tension and pressure sensor (20) and a direction sensor (19). A center line of an inner hole of the eccentric rotary sleeve deviates, such that the milling mechanism drives a milling cutter head to perform a rotary oscillation motion for rock-breaking with little resistance, and an axial and a radial exciting force are generated at the same time, thus fully utilizing the non-tensile characteristic of coal rock, and achieving a high rock-breaking efficiency. The milling cutter head is in discontinuous contact with a rock mass, such that the milling cutter head has a short contact path, is less abraded and has a low temperature, and the milling cutter head is prevented from being excessively abraded. The telescopic mechanism, the oblique feeding adjusting mechanism, the lifting mechanism and the horizontal swinging mechanism are controlled, such that the milling mechanism mills coal rock according to a predetermined path, thereby automatically and efficiently milling the rock mass. Further disclosed is an automatic cutting control method including the robot.

Classes IPC  ?

  • E21D 9/10 - Exécution en utilisant des machines à forer ou à inciser

29.

WHOLE SIZE-FRACTION SORTING PRE-ENRICHMENT SYSTEM AND PROCESS FOR COAL-SERIES CO-ASSOCIATED MINERAL GALLIUM LITHIUM

      
Numéro d'application CN2023079774
Numéro de publication 2023/216690
Statut Délivré - en vigueur
Date de dépôt 2023-03-06
Date de publication 2023-11-16
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Gui, Xiahui
  • Wang, Lei
  • Xing, Yaowen
  • Liu, Qinshan
  • Xu, Mengdi
  • Xia, Yangchao
  • Cao, Yijun
  • Miao, Zhenyong
  • Wang, Lanhao
  • Li, Yonggai
  • Xu, Tianyuan

Abrégé

The present invention relates to the technical field of mineral sorting, relates to a whole size-fraction sorting pre-enrichment system and process for coal-series co-associated mineral gallium lithium, and solves the problem of low sorting efficiency of coal-series co-associated mineral gallium lithium in the prior art. The present invention comprises a feeding grading preparation unit, an X-ray efficient sorting unit, and a micro-bubble flotation unit; the X-ray efficient sorting unit and the micro-bubble flotation unit are provided on the downstream of the feeding grading preparation unit, and the feeding grading unit is used for grading strategic metal gallium lithium-rich coal series; oversize products are fed into the X-ray efficient sorting unit to be sorted, and undersize products are fed into the micro-bubble flotation unit to be sorted. According to the present invention, the coal-series co-associated mineral gallium lithium can be efficiently sorted.

Classes IPC  ?

  • B03B 7/00 - Combinaisons de procédés ou d'appareils opérant par voie humide, avec d'autres procédés ou appareils, p.ex. pour la préparation des minerais ou cendres
  • B03B 9/00 - Disposition générale d'un atelier de séparation, p.ex. schéma opératoire
  • B03D 1/02 - Procédés de flottation par formation d'écume
  • B07C 5/34 - Tri en fonction d'autres propriétés particulières

30.

AXIAL FLUX SWITCHED RELUCTANCE MOTOR HAVING WIDE AND NARROW STATOR POLES, AND CONTROL METHOD THEREFOR

      
Numéro d'application CN2022144411
Numéro de publication 2023/216635
Statut Délivré - en vigueur
Date de dépôt 2022-12-31
Date de publication 2023-11-16
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Chen, Hao
  • Wang, Xing
  • Chang, Xiqiang
  • Lu, Qiwei
  • Dong, Lijiang

Abrégé

The present invention relates to the technical field of switched reluctance motors, and disclosed are an axial flux switched reluctance motor having wide and narrow stator poles, and a control method therefor. The axial flux switched reluctance motor having wide and narrow stator poles has a double stator disc and single rotor disc structure, and stator teeth at two sides are opposingly installed at two sides of the rotor disc; said motor comprises a left stator, a right stator, and a rotor; the left stator and the right stator teeth are opposingly placed at two sides of the rotor, and an air gap is left in the middle; the left stator and the right stator are salient pole structures with wide poles and narrow poles in a staggered arrangement; concentrated windings are wound on wide poles of the left stator and the right stator; and winding coils in stator slots of the left stator and the right stator at a same position have opposite polarities. Due to only one phase winding coil being placed in each stator slot and the rotor utilizing a segmented rotor structure, an excitation magnetic flux forms a short magnetic flux path between a wide stator pole and an adjacent narrow stator pole, same has a short axial length, the magnetic flux path is short, same operates reliably, has a high power density, and has a wide range of rotating speeds.

Classes IPC  ?

  • H02K 29/03 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec un circuit magnétique spécialement adapté pour éviter des ondulations du couple ou des problèmes de démarrage autonome
  • H02K 1/12 - Parties fixes du circuit magnétique
  • H02K 3/46 - Fixation des enroulements sur la structure statorique ou rotorique

31.

FULL-PARTICLE FRACTION SORTING AND PRE-ENRICHMENT PROCESS FOR COAL-BASED CO-ASSOCIATED MINERAL GERMANIUM

      
Numéro d'application CN2023079775
Numéro de publication 2023/216691
Statut Délivré - en vigueur
Date de dépôt 2023-03-06
Date de publication 2023-11-16
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Gui, Xiahui
  • Wang, Lei
  • Xing, Yaowen
  • Liu, Qinshan
  • Xu, Mengdi
  • Xia, Yangchao
  • Cao, Yijun
  • Miao, Zhenyong
  • Wang, Lanhao
  • Li, Yonggai
  • Xu, Tianyuan

Abrégé

Provided is a full-particle fraction sorting and pre-enrichment process for coal-based co-associated mineral germanium, the process comprising the steps of: S1: feeding and grading preparation; S2: X-ray sorting, which involving: feeding the oversize materials into an X-ray efficient sorting unit (2) for sorting; S3: micro-bubble flotation, which involving: feeding the undersize materials into a micro-bubble flotation unit for sorting, which involving: S3.1: passing the undersize materials through a crusher (7) and an ore grinding machine (8) in sequence to achieve sufficient dissociation; S3.2: grading the ore-ground product by means of a hydraulic grading cyclone (9), feeding the overflow product into the micro-bubble flotation and separation unit for sorting, and returning the underflow product to the ore grinding machine (8) for re-grinding; S3.3: feeding the overflow product of the hydraulic grading cyclone (9) and a reagent into a forced stirring mineralization device (12) for stirring and mineralization; S3.4: roughing the stirred and mineralized mixture by means of a flotation machine (13); and S3.5: selecting the overflow product from the flotation machine (13) by means of a flotation column (16), such that the coal-based co-associated mineral germanium can be efficiently sorted.

Classes IPC  ?

  • B03B 7/00 - Combinaisons de procédés ou d'appareils opérant par voie humide, avec d'autres procédés ou appareils, p.ex. pour la préparation des minerais ou cendres
  • B03B 9/00 - Disposition générale d'un atelier de séparation, p.ex. schéma opératoire
  • B03D 1/02 - Procédés de flottation par formation d'écume
  • B03D 1/14 - Machines de flottation
  • B07C 5/34 - Tri en fonction d'autres propriétés particulières
  • B07C 5/36 - Appareils trieurs caractérisés par les moyens qu'ils utilisent en vue de la distribution
  • B04C 9/00 - Combinaisons avec d'autres dispositifs, p.ex. avec des ventilateurs
  • B02C 21/00 - Installations de désagrégation avec ou sans séchage des matériaux
  • B03D 103/08 - Minerais non sulfurés carbonifères

32.

VARIABLE-RANGE VALVE LEAKAGE DETECTION DEVICE

      
Numéro d'application CN2022099457
Numéro de publication 2023/216364
Statut Délivré - en vigueur
Date de dépôt 2022-06-17
Date de publication 2023-11-16
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU SHENGAN INDUSTRIAL SAFETY TESTING RESEARCH INSTITUTE CO., LTD. (Chine)
  • XUZHOU UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
  • Li, Beibei
  • Liu, Xiumei
  • Wu, Su
  • Wei, Jianqiu
  • Zhao, Qiao
  • He, Jie
  • Li, Wei
  • Liu, Lili
  • Yang, Aowei
  • Shen, Yongxun
  • Liu, Mingxing

Abrégé

A variable-range valve leakage detection device comprises a leakage detection pipeline (6), the leakage detection pipeline (6) comprising an expandable section (24), a variable-diameter pipeline (23), an outer wall portion and a supporting pipeline (19). The expandable section (24) comprises a flexible cloth (242) and a movable metal plate (241). The metal plate (241) is wrapped inside the flexible cloth (242) to ensure that a gas entering the variable-diameter pipeline (23) is not leaked. The variable-diameter pipeline (23) comprises an upper support (32), a lower support (33) and a movable blade (34). A round pin protrudes from the upper support (32) plate to drive the movable blade (34) to move. The lower support (33) plate is provided with a square groove to enable the movable blade (34) to rotate around the lower support (33) plate. The same detection device can detect leakages having variable leakage amounts and containing different gases. When the leaked medium has a lower flow amount and flow rate than the lower limit detectable by a measurement instrument, it is difficult for metering devices such as anemometers to detect the leaked medium. According to the present invention, the flow area is reduced to increase the flow rate, thereby measuring tiny amounts of leakages accurately.

Classes IPC  ?

  • G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes

33.

TIMING AND POSITIONING NETWORK SYSTEM FOR COAL MINE UNDERGROUND CHAIN-SHAPED LARGE SPACE

      
Numéro d'application CN2022123134
Numéro de publication 2023/206969
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-11-02
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Zhou, Gongbo
  • Zhang, Chuansheng
  • Jiang, Fan
  • Han, Lianfeng
  • Wang, Shudong
  • Liu, Xin
  • Gu, Duifang
  • Wang, Tao
  • Wang, Chuansong
  • Wang, Libing
  • Liu, Niansheng
  • Shi, Fuxing
  • Liu, Dongrun
  • Li, Lizheng
  • Zhu, Zhencai

Abrégé

Disclosed in the present invention is a timing and positioning network system for a coal mine underground chain-shaped large space. On the basis of ad-hoc network base stations that are linearly deployed inside a coal mine underground chain-shaped large space, the timing and positioning network system in which the ad-hoc network base stations have a unified internal time reference is constructed by using a base station-level network internal time synchronization method that is mainly based on optical fiber timing and is supplemented by satellite timing. By means of network construction, network stabilization and network application, time references in a base station-level network are unified by using the base station-level network internal time synchronization method, thus improving the positioning precision during network application; in addition, the timing and positioning network system adapting to a coal mine underground environment is integrated on the basis of an existing underground communication ring network, which extends the network applicability.

Classes IPC  ?

  • H04W 56/00 - Dispositions de synchronisation
  • H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p.ex. gestion de la mobilité

34.

AUTOMATIC DRIVING SYSTEM OF MONORAIL HOIST DRIVEN BASED ON DIGITAL TWIN AND METHOD THEREOF

      
Numéro d'application 18027374
Statut En instance
Date de dépôt 2022-03-04
Date de la première publication 2023-11-02
Propriétaire
  • China University of Mining and Technology (Chine)
  • Xuzhou Liren Monorail Transportation Equipment Co., Ltd. (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Lu, Hao
  • Zhang, Yidong
  • Hu, Hengzhen
  • Zheng, Fuping
  • Tang, Yu
  • Xu, Kang
  • Zhang, Yuzhu

Abrégé

The present disclosure belongs to the technical field of mining equipment, and in particular related to an automatic driving system of a monorail hoist driven based on a digital twin and a method thereof. The system includes a railroad switch sensor module, a positioning system module, a data transferring system, an intelligent control system, a digital twin system and an automatic driving module. The railroad switch sensor module is configured to sense the connection-position state of a movable track in a monorail hoist railroad switch track. The data transferring system is configured to transmit the data on the surface and underground. A bidirectional transmission is performed between the intelligent control system and the railroad switch sensor module, a bidirectional transmission is performed between the intelligent control system and the positioning system module, and a bidirectional transmission is performed between the digital twin system and the intelligent control system.

Classes IPC  ?

  • B66C 13/48 - Commande automatique de l'entraînement des grues pour produire un cycle de travail unique ou répété; Commande par programmation
  • B66C 13/46 - Indicateurs de position pour charges suspendues ou pour éléments de grues
  • H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide

35.

ATTITUDE SELF-CORRECTING UNDERGROUND TRANSPORTATION APPARATUS BASED ON UWB TECHNOLOGY AND CONTROL METHOD THEREOF

      
Numéro d'application 18013908
Statut En instance
Date de dépôt 2022-08-31
Date de la première publication 2023-11-02
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Shen, Gang
  • Zhu, Zhencai
  • Qu, Song
  • Sa, Yunjie
  • Tang, Yu
  • Li, Xiang
  • Yuan, Guan
  • Xu, Zhiou
  • Zhao, Jiaqi
  • Chen, Pengpeng

Abrégé

The present application relates to an attitude self-correcting underground transportation apparatus based on UWB technology and a control method thereof. A transport clamping and fastening mechanism is mounted on an upper surface of an upper platform part of a six-degree-of-freedom motion platform. An attitude perception and sensing set at least includes three UWB tags, the UWB tags in the attitude perception and sensing set being evenly distributed on the side of the upper platform part of the six-degree-of-freedom motion platform. A control module is configured to send an electric signal to drive the six-degree-of-freedom motion platform and the transport clamping and fastening mechanism to grip an object to be transported, collect positioning information of the attitude perception and sensing set, calculate the attitude of the six-degree-of-freedom motion platform in real time, and perform attitude adjustment with reference to an expected position and attitude to maintain a smooth transportation process.

Classes IPC  ?

  • E21F 13/00 - Transport spécialement adapté aux conditions du fond
  • B60P 7/06 - Fixation du chargement

36.

MULTIPOINT SYNCHRONOUS BRAKING CONTROL SYSTEM FOR MONORAIL CRANE, AND USE METHOD THEREFOR

      
Numéro d'application CN2022119563
Numéro de publication 2023/206932
Statut Délivré - en vigueur
Date de dépôt 2022-09-19
Date de publication 2023-11-02
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Tang, Yu
  • Zhu, Zhencai
  • Shen, Gang
  • Li, Xiang
  • Gao, Mengmeng
  • Wang, Wei
  • Peng, Yuxing
  • Zhou, Gongbo
  • Lu, Hao
  • Wang, Qingguo

Abrégé

Disclosed are a multipoint synchronous braking control system for a monorail crane, and a use method therefor. The control system comprises a touch detection unit (1), a common end roller unit (2), a hydraulic unit (3), a synchronous control unit (4) and a connecting cable (5), wherein the touch detection unit (1) is mounted on a brake shoe (7) of the monorail crane, the common end roller unit (2) is mounted on a traveling rail and is connected to a rack (8) of the monorail crane, the touch detection unit (1) comprises a cylinder (101) connected to the brake shoe (7), a metal probe (102) corresponding to the traveling rail is arranged in cylinder (101), a circular boss is formed on the metal probe (102), a limit bolt (108) corresponding to the circular boss is formed on an inner side wall of the cylinder (101), the metal probe (102) can make contact with the traveling rail or the limit bolt (8) during braking of the brake shoe (7), and the brake shoe (7) is connected to the hydraulic unit (3) by means of a brake arm (6); and the metal probe (102), the limit bolt (108), the hydraulic unit (3) and the common end roller unit (2) are electrically connected to the synchronous control unit (4) by means of the connecting cable (5). The problem that a monorail crane cannot achieve multipoint synchronous braking control can be effectively solved by detecting the idle time of each brake in real time and delaying a control command of each brake during the next braking.

Classes IPC  ?

  • F16D 63/00 - Freins non prévus ailleurs; Freins combinant plusieurs des types mentionnés dans les groupes
  • F16D 66/02 - Appareils indicateurs d'usure
  • B61H 7/12 - Mâchoires agissant par frottement sur la voie

37.

MONORAIL CRANE BRAKE SHOE LOST MOTION TIME DETECTION DEVICE AND DETECTION METHOD THEREOF

      
Numéro d'application CN2022119564
Numéro de publication 2023/206933
Statut Délivré - en vigueur
Date de dépôt 2022-09-19
Date de publication 2023-11-02
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Tang, Yu
  • Shen, Gang
  • Li, Xiang
  • Gao, Mengmeng
  • Wang, Wei
  • Peng, Yuxing
  • Zhou, Gongbo
  • Lu, Hao
  • Wang, Qingguo

Abrégé

A monorail crane brake shoe lost motion time detection device and a detection method thereof. The detection device comprises a contact detection unit (1), a common end roller unit (2), a lost motion time detection unit (3) and a detection line (4). The contact detection unit (1) is mounted on a brake (5) of a monorail crane; the common end roller unit (2) is mounted on a frame (8) of the monorail crane and corresponds to a driving rail (7); the contact detection unit (1) comprises a barrel (101) connected to the brake (5); a metal probe (102) corresponding to the driving rail (7) is provided in the barrel (101); a protruding cylindrical block is formed on the metal probe (102); a limiting bolt (108) corresponding to the protruding cylindrical block is formed on the inner side wall of the barrel (101); the metal probe (102) comes into contact with the driving rail (7) or the limiting bolt (108) when the brake (5) implements braking; the lost motion time detection unit (3) is electrically connected to the metal probe (102), the limiting bolt (108) and an axle (202) of the common end roller unit (2) by means of the detection line (4). The device can solve the problems of large measurement error, low adaptability and easy interference in a conventional method.

Classes IPC  ?

  • B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freins; Dispositifs de signalisation
  • B61H 7/00 - Freins comportant des éléments de freinage agissant sur la voie

38.

SINGLE-LAYER SHAFT LINING WITH JOINT SEALING STRUCTURE AND GROUTING SYSTEM AND ITS CONSTRUCTION METHOD

      
Numéro de document 03217077
Statut En instance
Date de dépôt 2023-04-13
Date de disponibilité au public 2023-10-26
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Zhijiang
  • Yang, Weihao
  • Han, Tao
  • Zhang, Chi
  • Zhang, Tao
  • Luo, Tingting
  • Zhang, Yu
  • Huang, Jiahui
  • Ding, Ying
  • Liu, Tao

Abrégé

Disclosed is a single-layer shaft lining with a joint sealing structure and a grouting system and its construction method, which belongs to the technical field of mine construction engineering. A joint is formed at the contact position of an upper shaft lining and a lower shaft lining, and a sealing plate and a filling layer are arranged on the outer side of the joint; and the sealing plate and the filling layer are combined to form a sealing structure of the single-layer shaft lining. The single-layer shaft lining provided by the present disclosure has good overall water sealing performance, which is convenient to construct, and is much lower than a double-layer shaft lining and a double-layer composite shaft lining. It is suitable for the shaft excavated by freezing method, as well as suitable for the shaft excavated by common method or grouting method.

Classes IPC  ?

  • E21D 5/11 - Revêtement des puits; Revêtements à cet effet avec combinaisons de différents matériaux, p.ex. bois, métal, béton

39.

METHOD FOR ANALYZING AND PREDICTING THE MAIN FRACTURE ORIENTATION OF MINING FACE BASED ON MICROSEISMIC MONITORING

      
Numéro d'application 17990994
Statut En instance
Date de dépôt 2022-11-21
Date de la première publication 2023-10-26
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Liu, Yaoqi
  • Cao, Anye
  • Wang, Changbin
  • Bai, Xianxi
  • Yang, Xu
  • Guo, Wenhao
  • Xue, Chengchun
  • Wang, Songwei
  • Lyu, Guowei
  • Peng, Yujie
  • Li, Geng
  • Ma, Zhifeng
  • Xue, Jianqiu

Abrégé

Disclosed is a method for analyzing and predicting a main fracture orientation of a mining face based on microseismic monitoring, including: collecting microseismic data generated by a coal rock burst; carrying out a hierarchical clustering on the microseismic data to obtain target hypocenter groups, of which the target hypocenter groups comprise several types of hypocenters; acquiring focal mechanism solutions of all the target hypocenter groups in the target hypocenter group, and acquiring a hypocenter azimuth and a hypocenter dip based on the focal mechanism solutions; and carrying out the hierarchical clustering on a hypocenter location, the hypocenter azimuth and the hypocenter dip, and predicting the main fracture orientation of the mining face.

Classes IPC  ?

  • G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
  • G01V 1/30 - Analyse

40.

SINGLE-LAYER WELL WALL HAVING JOINTED WATER-STOP STRUCTURE AND GROUTING SYSTEM, AND CONSTRUCTION METHOD THEREFOR

      
Numéro d'application CN2023088007
Numéro de publication 2023/202455
Statut Délivré - en vigueur
Date de dépôt 2023-04-13
Date de publication 2023-10-26
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Zhijiang
  • Yang, Weihao
  • Han, Tao
  • Zhang, Chi
  • Zhang, Tao
  • Luo, Tingting
  • Zhang, Yu
  • Huang, Jiahui
  • Ding, Ying
  • Liu, Tao

Abrégé

The present invention belongs to the technical field of mine construction and engineering. Disclosed are a single-layer well wall having a jointed water-stop structure and a grouting system, and a construction method therefor. Joints are formed at the contact position of an upper well wall and a lower well wall. A water-stop plate and a filling layer are arranged on the outer side of the joint, and the water-stop plate and the filling layer jointly form the water-stop structure of a single-layer well wall. The single-layer well wall provided by the invention has good overall water sealing performance, construction is convenient, the manufacturing cost is far lower than that of a double-layer well wall and a double-layer composite well wall, the single-layer well wall is suitable for a shaft dug by a freezing method, and the single-layer well wall is also suitable for a shaft dug by a common method or a grouting method.

Classes IPC  ?

  • E21D 5/11 - Revêtement des puits; Revêtements à cet effet avec combinaisons de différents matériaux, p.ex. bois, métal, béton

41.

HIGH-PRECISION POSITIONING SYSTEM AND POSITIONING METHOD FOR COAL-MINE UNDERGROUND MONORAIL CRANE

      
Numéro d'application CN2022123325
Numéro de publication 2023/201993
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-10-26
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Zhang, Yidong
  • Peng, Yuxing
  • Tang, Yu
  • Chen, Hua
  • Xu, Zaigang
  • Wang, Mingzhong
  • Du, Mai
  • Hu, Hengzhen
  • Zheng, Fuping

Abrégé

A high-precision positioning system and positioning method for a coal-mine underground monorail crane. The system comprises two wheel carriers, which are symmetrically arranged on two sides of an I-beam track (1). A positioning wheel (4) and several traveling wheels (2) are provided on the wheel carriers, the traveling wheels (2) traveling on an upper end surface of a bottom plate of the I-beam track (1), and the positioning wheel (4) being in meshing transmission with a toothed rack (19) at a lower end of the bottom plate of the I-beam track (1). A mounting frame (18) and a connection base (9), which is used for connecting a monorail crane, are provided on the wheel carriers, and an inertial measurement unit (13) and a single-chip microcomputer (12), which are electrically connected to each other, are provided on the mounting frame (18). A rotation angle sensor (7) is provided on the positioning wheel (4), and the rotation angle sensor (7) is electrically connected to the single-chip microcomputer (12). Crane heads at two ends of the monorail crane are each provided with a coordinate updating unit (24). The high-precision positioning of the monorail crane is implemented by means of achieving the high-precision meshing between the positioning wheel (4) and the toothed rack (19) on the I-beam track (1) and then calculating the displacement of the positioning wheel (4).

Classes IPC  ?

  • B66C 13/46 - Indicateurs de position pour charges suspendues ou pour éléments de grues
  • G01C 21/16 - Navigation; Instruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigant; Navigation à l'estime en intégrant l'accélération ou la vitesse, c. à d. navigation par inertie

42.

ELECTROMAGNETIC PROBE TRANSMITTER SYSTEM SUITABLE FOR DEEP EARTH PROBE, AND CONTROL METHOD THEREFOR

      
Numéro d'application CN2022125853
Numéro de publication 2023/202012
Statut Délivré - en vigueur
Date de dépôt 2022-10-18
Date de publication 2023-10-26
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Wang, Yingjie
  • Liu, Haiyuan
  • Hu, Gangzhong
  • Sun, Tao
  • Hou, Hegang
  • Shi, Yu

Abrégé

Disclosed in the present invention are an electromagnetic probe transmitter system suitable for a deep earth probe, and a control method therefor. A power frequency rectification module in the system rectifies an alternating current, which is generated by a generator, into a direct current. A series coordination control module controls a series high-frequency DCDC module, converts the direct current obtained by means of rectification to follow a given reference value voltage, and suppresses a voltage fluctuation together with a capacitor energy storage module and a dummy load module. A cooperative transmitting module obtains GPS/Beidou timing from a timing module, and controls a switching operation of the dummy load module and a three-level transmitting module at an instruction moment. The three-level transmitting module eliminates a step time of a traditional multi-level transmitting circuit and improves a dynamic response speed, and the series coordination control module, the capacitor energy storage module, the dummy load module and the cooperative transmitting module operate collectively, such that a transient fluctuation of a transmission voltage is reduced, and the frequency of a transmission waveform is improved.

Classes IPC  ?

  • G01V 3/08 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
  • H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
  • H02M 7/06 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge sans électrode de commande ou des dispositifs à semi-conducteurs sans éléctrode de commande
  • H02M 7/487 - Onduleurs bloqués au point neutre

43.

METHOD FOR DETERMINING MERCURY AND ARSENIC IN BRIQUETTES BASED ON ATOMIC FLUORESCENCE SPECTROMETRY AND DIGESTION OF BRIQUETTES USING HYDROTHERMAL SYNTHESIS REACTOR

      
Numéro d'application CN2023071498
Numéro de publication 2023/197712
Statut Délivré - en vigueur
Date de dépôt 2023-01-10
Date de publication 2023-10-19
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • YULIN UNIVERSITY (Chine)
  • NATIONAL COAL AND SALT CHEMICAL PRODUCT QUALITY SUPERVISION AND INSPECTION CENTER (YULIN) (YULIN PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE) (Chine)
Inventeur(s)
  • Chen, Juan
  • Wu, Jianjun
  • Liu, Zhe
  • Yan, Long
  • Yan, Tao
  • Zhang, Yixin
  • Guo, Zhenkun
  • Guo, Yang
  • Li, Jian
  • Wang, Yufei

Abrégé

A method for determining mercury and arsenic in briquettes based on atomic fluorescence spectrometry and digestion of briquettes using a hydrothermal synthesis reactor, comprising: adding a certain amount of briquettes and a proper amount of mixed acid into a polytetrafluoroethylene sealed tank, which has been subjected to soaking, cleaning and preheating, for pre-digestion until a gas is released, after the reaction eases, capping, placing the polytetrafluoroethylene sealed tank into a stainless steel sleeve for sealing, placing the stainless steel sleeve into an electrothermal blast drying oven for closed heating digestion, and then performing acid removal and volume fixing operations to obtain a digestion solution to be tested; and preparing a standard series of solutions of mercury and arsenic elements, drawing a standard curve, then using an atomic fluorescence spectrometer to test the obtained digestion solution to be tested to obtain a fluorescence intensity, and performing conversion by means of the standard curve to obtain the content of corresponding elements in the briquettes.

Classes IPC  ?

  • G01N 21/64 - Fluorescence; Phosphorescence
  • G01N 1/44 - Traitement d'échantillons mettant en œuvre un rayonnement, p.ex. de la chaleur

44.

SLOPE AND CURVE PASSAGE METHOD FOR UNMANNED RAIL ELECTRIC LOCOMOTIVE IN DEEP LIMITED SPACE

      
Numéro d'application CN2022121671
Numéro de publication 2023/197535
Statut Délivré - en vigueur
Date de dépôt 2022-09-27
Date de publication 2023-10-19
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • CHANGZHOU DEVELOPMENT & MANUFACTURE CENTRE CO., LTD. (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Li, Huijun
  • He, Sikui
  • Gao, Yong
  • Ye, Bin
  • Qian, Jun
  • Wang, Baorui
  • Yan, Wanzi
  • Zhang, Yidong
  • Cao, Guohua

Abrégé

Disclosed in the present invention is a slope and curve passage method for an unmanned rail electric locomotive in a deep limited space. The method comprises: a rail electric locomotive traveling on an underground roadway at a constant speed, collecting road data during a traveling process in real time by means of a solid-state LIDAR, and feeding the road data back to an industrial control computer, so as to obtain an original three-dimensional point cloud data packet and imu data; then, obtaining ground point cloud data and non-ground point cloud data by means of segmentation using a RANSAC algorithm; according to the collected imu data, calculating the current pose of the solid-state LIDAR, so as to feed back whether the electric locomotive travels on a slope, and then obtain the lengths and positions of an upslope and a downslope, and the electric locomotive accelerating when going upslope and decelerating when going downslope, thereby ensuring that the electric locomotive travels normally at a constant speed; and determining whether there is a curve according to the shape of a wall of the roadway, and calculating the curvature of the curve and the position of the curve. Therefore, an unmanned rail electric locomotive can accurately identify an upslope, a downslope and a curve, thereby ensuring the smooth passage of the unmanned rail electric locomotive in a mine.

Classes IPC  ?

  • G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
  • G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie

45.

SEPARATING DENSITY FORECASTING METHOD AND FORECASTING MODEL CONSTRUCTION METHOD AND DEVICE

      
Numéro d'application CN2023085316
Numéro de publication 2023/193656
Statut Délivré - en vigueur
Date de dépôt 2023-03-31
Date de publication 2023-10-12
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Duan, Chenlong
  • Zhou, Chenyang
  • Chen, Jianqiang
  • Liu, Xibo
  • Chai, Xuesen
  • Wang, Cheng
  • Gao, Zhonglin
  • Wang, Dan

Abrégé

A separating density forecasting method and a forecasting model construction method and device. The forecasting model construction method comprises: performing fluidization operation on dense-medium particles in a fluidized bed to achieve bubbling fluidization; suspending, by means of a dynamometer, minerals to be separated in a dry dense-medium fluidized bed, the minerals to be separated being dense ores; collecting a resultant force borne by the minerals to be separated and the bed layer density; according to the resultant force borne by the minerals to be separated and the bed layer density, the granularity and the real density of the minerals to be separated, and the bulk density of the dense-medium particles, determining a function relationship between the volume of a fluidization dead zone above the minerals to be separated in the fluidized bed and the granularity of the minerals to be separated; and constructing a dry dense-medium fluidized bed separating density forecasting model on the basis of the function relationship.

Classes IPC  ?

  • B07B 7/00 - Séparation sélective des matériaux solides portés par des courants de gaz, ou dispersés dans ceux-ci
  • G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
  • G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
  • G06Q 50/02 - Agriculture; Pêche; Exploitation minière

46.

Grouting material for modifying mudstone, preparation method and application thereof

      
Numéro d'application 18300462
Numéro de brevet 11780773
Statut Délivré - en vigueur
Date de dépôt 2023-04-14
Date de la première publication 2023-10-10
Date d'octroi 2023-10-10
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Wu, Jiangyu
  • Ma, Dan
  • Pu, Hai
  • Yin, Qian
  • Zhang, Haixiang
  • Bian, Zhengfu
  • Yu, Liyuan
  • Jing, Hongwen
  • Yang, Shuo
  • Wang, Yiming

Abrégé

Disclosed are a grouting material for modifying mudstone, a preparation method and an application thereof, belonging to the technical field of material science and geotechnical engineering. The grouting material for modifying mudstone includes the following raw materials: cement, water, superfine micronized powder, water reducer, silane, fiber, diatomite, urea-formaldehyde resin and waterborne polyurethane. The preparation method of the grouting material for modifying mudstone includes steps of: (1) weighing the raw materials in parts by weight, mixing water of 40% of a total amount of water with water reducer, superfine micronized powder, fiber and diatomite, stirring to obtain a material A; (2) adding silane, urea-formaldehyde resin, waterborne polyurethane and residual water into the material A, obtaining a material B after continuous stirring; and (3) adding cement into the material B, and uniformly stirring to obtain the grouting material for modifying mudstone.

Classes IPC  ?

  • C04B 18/14 - Déchets; Résidus provenant de procédés métallurgiques
  • C04B 24/42 - Composés comportant au moins une liaison carbone-silicium
  • C04B 14/46 - Laine minérale
  • C04B 16/06 - Composés macromoléculaires fibreux
  • C04B 24/30 - Polymères de condensation d'aldéhydes ou de cétones
  • C04B 24/28 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
  • C04B 111/70 - Coulis
  • C04B 111/27 - Résistance à l'eau, c.à d. matériaux imperméables ou hydrophobes
  • C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle

47.

MINE STRESS FIELD TWIN MODELING ASSIMILATION SYSTEM FOR FULL SPACE-TIME MINING PROCESS, AND METHOD

      
Numéro d'application CN2023084076
Numéro de publication 2023/185735
Statut Délivré - en vigueur
Date de dépôt 2023-03-27
Date de publication 2023-10-05
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Wei
  • Wei, Zening
  • Feng, Yingte
  • Zhang, Wenxiao
  • Wang, Wenyuan

Abrégé

The present invention relates to a mine stress field twin modeling assimilation system for a full space-time mining process, and a method, and belongs to the technical field of digital twin assimilation inversion. The system comprises a digital model unit, a physical model unit and a human-computer interaction unit. The digital model unit is provided with an equal-proportion three-dimensional geological model, a mine historical assimilation model and a trusted digital twin model; the physical model unit covers a stratum and a mining face tunnel system, and the human-computer interaction unit has an information database and a software simulation monitoring interface. By means of a software establishment model, assimilation technology optimization model operation and a digital twin technology interconnection physical entity and virtual model, the present invention is able to construct a mine in-situ stress field twin model aimed at a full space-time mining process and better approximating reality, and is likewise able to use real physical scene monitoring data to perform simulated pre-mining in a virtual spatial model, aimed at grasping the space-time evolution laws of stress fields in the mining process, and providing guidance for safe mining production.

Classes IPC  ?

48.

MINE DIGITAL MODEL CONSTRUCTION METHOD BASED ON THREE-DIMENSIONAL POINT CLOUD DATABASE

      
Numéro d'application CN2023084075
Numéro de publication 2023/185734
Statut Délivré - en vigueur
Date de dépôt 2023-03-27
Date de publication 2023-10-05
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Wei
  • Wang, Wenyuan
  • Feng, Yingte
  • Zhang, Wenxiao
  • Wei, Zening

Abrégé

The present invention belongs to the field of mine three-dimensional digital modeling, and disclosed is a mine digital model construction method based on a three-dimensional point cloud database. Mine data resources are collected, valid coordinate point position information is extracted according to point cloud data extraction standards, and a mine three-dimensional point cloud database is established; a model of rock strata boundary surfaces, mining areas, and tunnels is constructed, a surface three-dimensional geological model is constructed, and a mine three-dimensional geological model is further constructed; and division into grids is performed to obtain a mine extraction inversion digital model. According to the method, a mine three-dimensional point cloud database can be obtained, and various identified rock strata topographies, positions of mining areas and tunnels, fault morphologies, and surface morphologies can be restored; mine extraction inversion digital models having different precisions can be constructed according to a simulation requirement by utilizing the present method, a foundation is laid for crustal stress field inversion, and a reliable basis is provided for mine disaster prevention and control.

Classes IPC  ?

  • G06T 17/20 - Description filaire, p.ex. polygonalisation ou tessellation

49.

ELLIPSOIDAL HOLLOW FLOOR SYSTEM-BASED AIRFLOW FLOW CONSTRUCTION METHOD AND AIRFLOW LOSS-BASED CALCULATION METHOD

      
Numéro d'application CN2023085010
Numéro de publication 2023/185994
Statut Délivré - en vigueur
Date de dépôt 2023-03-30
Date de publication 2023-10-05
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Wang, Yong
  • Gu, Aolin
  • Zhang, Yajun
  • Liu, Weixin
  • Meng, Ziyang
  • Wang, Shanshan
  • Wang, Xinhe
  • Zeng, Cuijun
  • Han, Guanxu
  • Hu, Chenhua
  • Tian, Haoyu

Abrégé

An ellipsoidal hollow floor system-based airflow flow construction method and an airflow loss-based calculation method. The airflow flow construction method comprises: an ellipsoidal hollow floor system-based smoke exhaust construction method for performing smoke exhaust, ventilation, air conditioning, and fire extinguishing of a hollow floor system. The airflow loss-based calculation method comprises: obtaining total loss for a football-shaped cavity and obtaining total airflow loss for a disk-shaped cavity. By using the floor system composed of ellipsoidal cavities, due to curved surface characteristics of inner walls of the cavities, compared to conventional cube-shaped cavities, the floor system composed of the ellipsoidal cavities has the advantages of small overall airflow flow energy loss, a good airflow flow effect, and small sudden contraction and sudden expansion energy losses, has a better effect than the conventional cube-shaped cavities when applied to the airflow flow of the hollow floor system, has certain fire-resistant properties compared to conventional open conduits, and has more economical and efficient applications with respect to indoor smoke exhaust, indoor ventilation, air conditioning, and fire extinguishing by introducing a fire extinguishing gas such as perfluorohexanone into the floor system.

Classes IPC  ?

  • E04B 5/48 - Adaptations particulières des planchers pour l'incorporation de conduites, p.ex. pour chauffage ou ventilation
  • F24F 13/02 - Dispositions pour conduire l'air
  • F24F 7/06 - Ventilation avec réseau de gaines à circulation d'air forcée, p.ex. par un ventilateur
  • A62C 35/58 - Réseaux de conduites
  • G06F 30/13 - Conception architecturale, p.ex. conception architecturale assistée par ordinateur [CAAO] relative à la conception de bâtiments, de ponts, de paysages, d’usines ou de routes

50.

Low-energy-consumption grading and positioning method for coal mine auxiliary transportation vehicle and system thereof

      
Numéro d'application 18029326
Numéro de brevet 11772687
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de la première publication 2023-10-03
Date d'octroi 2023-10-03
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • Xuzhou Kerui Mining Technology Co., Ltd. (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Jiang, Fan
  • Huang, Xingtao
  • Zhou, Gongbo
  • Liu, Niansheng
  • Wang, Libing
  • Zhang, Chuansheng
  • Guo, Junfeng
  • Shen, Gang
  • Cheng, Shuman
  • Ma, Jinlei
  • Zhang, Chaofan
  • Yi, Wenwen

Abrégé

0 of the vehicle passing through each locked interval, and selecting whether to start overtime early warning or overtime alarm; and S60, repeating S30 to S50 after the vehicle enters the next locked interval. The low-energy-consumption grading and positioning method and system for the coal mine auxiliary transportation vehicle provided in the present disclosure realizes on-demand positioning of the underground vehicle and reduces the consumption and cost of positioning.

Classes IPC  ?

  • B61D 11/00 - Wagons miniers
  • G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
  • E21F 17/18 - Adaptations particulières des dispositifs de signalisation ou d'alarme

51.

Method for drivable area detection and autonomous obstacle avoidance of unmanned haulage equipment in deep confined spaces

      
Numéro d'application 18022645
Numéro de brevet 11880208
Statut Délivré - en vigueur
Date de dépôt 2022-02-23
Date de la première publication 2023-09-28
Date d'octroi 2024-01-23
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Chunyu
  • Zhu, Zhencai
  • Zhang, Yidong
  • Zhang, Xin
  • Gu, Zhen
  • Wang, Qingguo

Abrégé

A method for drivable area detection and autonomous obstacle avoidance of unmanned haulage equipment in deep confined spaces is disclosed, which includes the following steps: acquiring 3D point cloud data of a roadway; computing a 2D image drivable area of the coal mine roadway; acquiring a 3D point cloud drivable area of the coal mine roadway; establishing a 2D grid map and a risk map, and performing autonomous obstacle avoidance path planning by using a particle swarm path planning method designed for deep confined roadways; and acquiring an optimal end point to be selected of a driving path by using a greedy strategy, and enabling an unmanned auxiliary haulage vehicle to drive according to the optimal end point and an optimal path. Images of a coal mine roadway are acquired actively by use of a single-camera sensor device.

Classes IPC  ?

  • G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
  • G06V 20/56 - Contexte ou environnement de l’image à l’extérieur d’un véhicule à partir de capteurs embarqués
  • G06T 7/593 - Récupération de la profondeur ou de la forme à partir de plusieurs images à partir d’images stéréo
  • G06V 20/70 - RECONNAISSANCE OU COMPRÉHENSION D’IMAGES OU DE VIDÉOS Éléments spécifiques à la scène Étiquetage du contenu de scène, p.ex. en tirant des représentations syntaxiques ou sémantiques
  • G06V 20/40 - RECONNAISSANCE OU COMPRÉHENSION D’IMAGES OU DE VIDÉOS Éléments spécifiques à la scène dans le contenu vidéo
  • G06T 7/155 - Découpage; Détection de bords impliquant des opérateurs morphologiques
  • G06T 7/00 - Analyse d'image
  • G06T 5/20 - Amélioration ou restauration d'image en utilisant des opérateurs locaux
  • G06T 5/10 - Amélioration ou restauration d'image en utilisant le filtrage dans le domaine non spatial
  • G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes

52.

PASSIVE COMBINED INDOOR POSITIONING SYSTEM AND METHOD BASED ON INTELLIGENT TERMINAL SENSOR

      
Numéro d'application 18151633
Statut En instance
Date de dépôt 2023-01-09
Date de la première publication 2023-09-28
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Li, Zengke
  • Shao, Kefan
  • Jing, Shiyi
  • Liu, Yanlong
  • Wu, Qi
  • Liu, Ao
  • Ding, Xingyu

Abrégé

The passive combined indoor positioning system and method based on an intelligent terminal sensor, and is applied to the technical field of real-time positioning, can include a data collection module, a dead reckoning module, a geomagnetic matching determining module, a single-point matching module, a sequence matching module, a single-point positioning module, a sequence positioning module, and an error correction module. The system collects sensor data of a current location by using an intelligent terminal, and performs dead reckoning and geomagnetic matching based on the sensor data of the current location, so as to obtain a fusion positioning result of the current location through particle filter.

Classes IPC  ?

  • G01C 21/16 - Navigation; Instruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigant; Navigation à l'estime en intégrant l'accélération ou la vitesse, c. à d. navigation par inertie
  • G01C 21/20 - Instruments pour effectuer des calculs de navigation

53.

Series-parallel monorail hoist based on oil-electric hybrid power and controlling method thereof

      
Numéro d'application 18250673
Numéro de brevet 11938974
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de la première publication 2023-09-28
Date d'octroi 2024-03-26
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Lu, Hao
  • Peng, Yuxing
  • Zhou, Gongbo
  • Tang, Yu
  • Chen, Hua
  • Xu, Zaigang
  • Wang, Mingzhong
  • Du, Mai
  • Zheng, Fuping

Abrégé

A series-parallel monorail hoist based on an oil-electric hybrid power and a controlling method thereof. The monorail hoist includes a cabin, a hydraulic driving system, a lifting beam, a gear track driving and energy storage system, and a speed adaptive control system connected in series with each other and travelling on a track. The monorail hoist is capable of implementing an independent drive by an electric motor or a diesel engine in an endurance mode, a hybrid drive of the electric motor and the diesel engine in a transportation mode, and a hybrid drive of the diesel engine and a flywheel energy storage system in a climbing mode, according to different operating conditions that include conditions of an upslope, a downslope and a load. Power requirements for the monorail hoist under various operating conditions are satisfied, and the excess energy is recovered during the process of travelling.

Classes IPC  ?

  • B61C 7/00 - Autres locomotives ou automotrices caractérisées par le type de puissance motrice utilisée; Locomotives ou automotrices avec plusieurs sortes ou types de puissance motrice
  • B61C 17/00 - LOCOMOTIVES; AUTOMOTRICES - Détails ou accessoires non prévus ailleurs; Utilisation de mécanismes ou de systèmes de commande
  • F16H 49/00 - Autres transmissions
  • G05D 13/60 - Commande de la vitesse linéaire; Commande de la vitesse angulaire; Commande de l'accélération ou de la décélération, p.ex. d'une machine motrice avec source d'énergie auxiliaire non électrique utilisant des dispositifs de régulation avec bande proportionnelle, action dérivée et action intégrale, c. à d. des dispositifs de régulation "PID"

54.

INTELLIGENT FLOTATION CHEMICALS LOADING SYSTEM AND METHOD BASED ON FLOTATION TAILING ORE PULP DETECTION

      
Numéro d'application CN2022138268
Numéro de publication 2023/179111
Statut Délivré - en vigueur
Date de dépôt 2022-12-12
Date de publication 2023-09-28
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xing, Yaowen
  • Gui, Xiahui
  • Liu, Qinshan
  • Cao, Yijun
  • Wang, Lanhao
  • Liu, Jiongtian

Abrégé

An intelligent flotation chemicals loading system and method based on flotation tailing ore pulp detection, relating to the technical field of flotation chemicals loading, and for use in solving the problems in the prior art of untimely flotation chemicals loading and inaccurate dosage caused by manual adjustment. Provided is an intelligent flotation chemicals loading system based on flotation tailing ore pulp detection, comprising a flotation information collection unit, an intelligent ash content prediction unit, and a distributed control chemicals loading unit. The flotation information collection unit is used for obtaining flow, concentration, coarse particle content, and image information of ore pulp; the intelligent ash content prediction unit is used for processing the flow, concentration, coarse particle content, and image information of the ore pulp to obtain the ash content of the ore pulp; and the distributed control chemicals loading unit is used for regulating and controlling the chemicals loading amount according to the ash content of the ore pulp and the flow, concentration, and coarse particle content of the ore pulp. According to the intelligent chemicals loading system and method, flotation parameters can be continuously monitored in real time, and the chemicals loading amount can be adjusted in a timely manner.

Classes IPC  ?

55.

INTELLIGENT FLOTATION AGENT ADDITION SYSTEM BASED ON FLOTATION COAL TAILING SLURRY DETECTION, AND AGENT ADDITION METHOD

      
Numéro d'application CN2023079776
Numéro de publication 2023/179344
Statut Délivré - en vigueur
Date de dépôt 2023-03-06
Date de publication 2023-09-28
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xing, Yaowen
  • Gui, Xiahui
  • Liu, Qinshan
  • Cao, Yijun
  • Wang, Lanhao
  • Liu, Jiongtian

Abrégé

The present invention relates to an intelligent flotation agent addition system based on flotation coal tailing slurry detection, and an agent addition method, which relate to the technical field of flotation agent addition, and solve the problems of untimeliness and inaccurate dosing related to the manual addition of flotation agents in the prior art. The present invention provides an intelligent flotation agent addition system based on flotation coal tail slurry detection, which comprises a flotation information acquisition unit, an intelligent ash content prediction unit and a distributed controlled agent addition unit. The flotation information acquisition unit acquires the flow, concentration, coarse particle content and image information of an ore slurry, the intelligent ash content prediction unit processes the flow, concentration, coarse particle content and image information of the ore slurry, and the distributed controlled agent addition unit regulates and controls the amount of agent addition according to the ash content of the ore slurry and the flow, concentration and coarse particle content of the ore slurry. The present invention enables real-time continuous monitoring of flotation parameters and timely adjustment of the amount of agent addition.

Classes IPC  ?

56.

LOW-POWER-CONSUMPTION GRADED POSITIONING METHOD AND SYSTEM FOR COAL-MINE AUXILIARY TRANSPORTATION VEHICLE

      
Numéro d'application CN2022123136
Numéro de publication 2023/178981
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-09-28
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Jiang, Fan
  • Huang, Xingtao
  • Zhou, Gongbo
  • Liu, Niansheng
  • Wang, Libing
  • Zhang, Chuansheng
  • Guo, Junfeng
  • Shen, Gang
  • Cheng, Shuman
  • Ma, Jinlei
  • Zhang, Chaofan
  • Yi, Wenwen

Abrégé

The present application belongs to the technical field of transportations in mine tunnels, and relates to a low-power-consumption graded positioning method and system for a coal-mine auxiliary transportation vehicle. The method comprises: S10, determining an optimal transportation route for a vehicle, and dividing the optimal transportation route into a plurality of closed sections; S20, determining an initial speed v0 of the vehicle passing through each closed section; S30, establishing a discretized mileage estimation model, and updating, in real-time, the position of the vehicle, so as to obtain dynamic trajectory information of the vehicle within each closed section; S40, establishing a [v0, t] prediction model, and obtaining, by means of the prediction model, a theoretical time t0 of the vehicle passing through each closed section; S50, comparing the actual time t and theoretical time t0 of the vehicle passing through each closed section, and choosing whether to give an early-warning regarding expiration or raise an alarm regarding expiration; and S60, after the vehicle enters the next closed section, executing S30-S50 again The low-power-consumption graded positioning method and system for a coal mine auxiliary transportation vehicle in the present application realizes on-demand positioning of an underground vehicle, and reduces the power consumption and costs for positioning.

Classes IPC  ?

  • E21F 13/00 - Transport spécialement adapté aux conditions du fond
  • G06K 17/00 - Méthodes ou dispositions pour faire travailler en coopération des équipements couverts par plusieurs des groupes principaux , p.ex. fichiers automatiques de cartes incluant les opérations de transport et de lecture
  • E21F 17/18 - Adaptations particulières des dispositifs de signalisation ou d'alarme

57.

SERIES-PARALLEL OIL-ELECTRICITY-HYBRID MONORAIL CRANE AND CONTROL METHOD

      
Numéro d'application CN2022123319
Numéro de publication 2023/178982
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-09-28
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Zhang, Yidong
  • Chen, Hua
  • Xu, Zaigang
  • Wang, Mingzhong
  • Du, Mai
  • Hu, Hengzhen
  • Zheng, Fuping

Abrégé

A series-parallel oil-electricity-hybrid monorail crane and a control method. The monorail crane comprises a cab (1), a hydraulic driving system, a hoisting beam (6), a toothed rail drive and an energy storage system, and an adaptive speed control system, which are sequentially connected in series and travel on a rail (7). According to different working conditions, comprising an upslope condition, a downslope condition and a loading condition, the monorail crane can realize separate driving of an electric motor or a diesel engine in an endurance mode, hybrid driving of the electric motor and the diesel engine in a transportation mode, and hybrid driving of the diesel engine and a flywheel energy storage system in a slope climbing mode, such that the power requirements of the monorail crane under each working condition are satisfied, and redundant energy is recycled during a traveling process, thereby achieving energy conservation and emission reduction.

Classes IPC  ?

  • B61C 7/00 - Autres locomotives ou automotrices caractérisées par le type de puissance motrice utilisée; Locomotives ou automotrices avec plusieurs sortes ou types de puissance motrice
  • B61C 13/06 - Locomotives ou automotrices caractérisées par leur utilisation dans des systèmes ou pour des buts particuliers pour chemins de fer à voies flexibles suspendues, p.ex. chemins de fer à câble
  • B61C 17/00 - LOCOMOTIVES; AUTOMOTRICES - Détails ou accessoires non prévus ailleurs; Utilisation de mécanismes ou de systèmes de commande

58.

MINING CAMERA BASED ON MIRROR SURFACE INTELLIGENT PARTITION AND WATER-GAS-ULTRASONIC COMPOSITE DUST REMOVAL

      
Numéro d'application CN2022123351
Numéro de publication 2023/173725
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-09-21
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Zhou, Ping
  • Liu, Bei
  • Zhou, Gongbo
  • Zhu, Zhencai
  • Tang, Chaoquan
  • Li, Qing
  • Wang, Hanyu
  • Wang, Shihao
  • He, Zhenzhi
  • Li, Menggang

Abrégé

Disclosed in the present invention is a mining camera based on mirror surface intelligent partition and water-gas-ultrasonic composite dust removal, comprising a protective housing and a camera lens arranged in the protective housing, wherein a rotatable glass lens corresponding to the camera lens is arranged on the protective housing; a movable ultrasonic cleaning module for cleaning the cleaning region of the outer surface of the glass lens, a telescopic internal dust removing module for cleaning dust on the inner surface of the glass lens, and a gas ejection module for performing air drying and dust removal on the outer surface of the cleaned glass lens are arranged in the protective housing; and the ultrasonic cleaning module, the telescopic internal dust removing module, and the gas ejection module are electrically connected to a control apparatus. Therefore, dust can be well prevented from adhering to the lens, the situation that a small amount of dust adheres to the inner surface of the glass lens of the camera due to static electricity or other influences can be avoided, the mirror surface cleaning effect can be improved, and damage to the lens is reduced.

Classes IPC  ?

  • B08B 5/02 - Nettoyage par la force de jets, p.ex. le soufflage de cavités
  • B08B 3/12 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p.ex. par la chaleur, par l'électricité ou par des vibrations par des vibrations soniques ou ultrasoniques
  • B08B 1/04 - Nettoyage par des procédés impliquant l'utilisation d'outils, de brosses ou d'éléments analogues utilisant des éléments actifs rotatifs

59.

LOW-ENERGY-CONSUMPTION GRADING AND POSITIONING METHOD FOR COAL MINE AUXILIARY TRANSPORTATION VEHICLE AND SYSTEM THEREOF

      
Numéro de document 03193304
Statut En instance
Date de dépôt 2022-09-30
Date de disponibilité au public 2023-09-21
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Jiang, Fan
  • Zhu, Zhencai
  • Huang, Xingtao
  • Zhou, Gongbo
  • Liu, Niansheng
  • Wang, Libing
  • Zhang, Chuansheng
  • Guo, Junfeng
  • Shen, Gang
  • Cheng, Shuman
  • Ma, Jinlei
  • Zhang, Chaofan
  • Yi, Wenwen

Abrégé

The present disclosure provides a low-energy-consumption grading and positioning method and system for a coal mine auxiliary transportation vehicle. The method comprises: SIO, determining an optimal transportation route of the vehicle, and dividing the optimal transportation route into a plurality of locked intervals; S20, determining an initial velocity vo of the vehicle passing through each locked interval; S30, constructing a discretization mileage estimation model to update the vehicle's real-time position, and obtaining dynamic track information of the vehicle in each locked interval; S40, constructing a [vO, t] prediction model to obtain a theoretical time to of the vehicle passing through each locked interval; S50, comparing an actual time t and the theoretical time to of the vehicle passing through each locked interval, and selecting whether to start overtime early warning or overtime alarm; and S60, repeating S30 to S50 after the vehicle enters the next locked interval.

Classes IPC  ?

  • G08G 1/123 - Systèmes de commande du trafic pour véhicules routiers indiquant la position de véhicules, p.ex. de véhicules à horaire déterminé
  • B60W 40/105 - Vitesse
  • B60W 40/00 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
  • E21F 13/00 - Transport spécialement adapté aux conditions du fond
  • E21F 17/00 - Procédés ou dispositifs destinés à être utilisés dans les mines ou tunnels, non couverts ailleurs
  • G06K 17/00 - Méthodes ou dispositions pour faire travailler en coopération des équipements couverts par plusieurs des groupes principaux , p.ex. fichiers automatiques de cartes incluant les opérations de transport et de lecture
  • G08B 21/18 - Alarmes de situation

60.

ACCURATE POSITIONING METHOD AND SYSTEM BASED ON MULTI-SOURCE INFORMATION FUSION AND FOR MONORAIL CRANE IN UNDERGROUND COAL MINE

      
Numéro d'application CN2022124501
Numéro de publication 2023/173729
Statut Délivré - en vigueur
Date de dépôt 2022-10-11
Date de publication 2023-09-21
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Zhu, Zhencai
  • Li, Xiang
  • Shen, Gang
  • Tang, Yu
  • Qu, Song
  • Yuan, Guan
  • Yuan, Yiping
  • Ye, Wenkai
  • Zhao, Jiaqi
  • Wang, Qingguo

Abrégé

An accurate positioning method based on multi-source information fusion and for a monorail crane in an underground coal mine. The method comprises the following steps: calculating a dynamic location of a moving vehicle according to a vehicle-mounted label of a UWB system and a base station (S100); performing matrix transformation according to an attitude matrix contrast force which is output by a strapdown inertial navigation system, so as to calculate a traveling distance of the vehicle (S200); determining location information of a feature point according to a full-scene map constructed by a map construction system (S300); and constructing, according to a monorail crane traveling displacement model and accurate location information of the feature point, a Kalman filtering model for accurate positioning, and correcting a monorail crane real-time location model, so as to obtain accurate location information (S700). Further provided is an accurate positioning system based on multi-source information fusion and for a monorail crane in an underground coal mine. By means of performing information fusion on three positioning modes, the accuracy is guaranteed while a relatively high stability and anti-interference performance can also be achieved, and the system is applicable to the positioning of a monorail crane in an underground environment.

Classes IPC  ?

  • B61L 25/02 - Indication ou enregistrement de la position ou de l'identité de véhicules ou de trains

61.

TIME SERVICE AND POSITIONING NETWORK SYSTEM FOR UNDERGROUND CHAIN-SHAPED LARGE SPACE IN COAL MINE

      
Numéro de document 03205438
Statut En instance
Date de dépôt 2022-09-30
Date de disponibilité au public 2023-09-13
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Zhou, Gongbo
  • Zhang, Chuansheng
  • Jiang, Fan
  • Han, Lianfeng
  • Wang, Shudong
  • Liu, Xin
  • Gu, Duifang
  • Wang, Tao
  • Wang, Chuansong
  • Wang, Libing
  • Liu, Niansheng
  • Shi, Fuxing
  • Liu, Dongrun
  • Li, Lizheng
  • Zhu, Zhencai

Abrégé

The present disclosure discloses a time service and positioning network systern for an undeigtound chain-shaped large space in a coal mine. The system adopts a base station- level network internal time synchronization method which takes an optical fiber time service as a main part and takes a satellite time service as an auxiliary part to construct a time service and positioning network system with an unified time within the ad- hoc network base stations, based on the ad-hoc network base stations linearly arranged in the underground chain-shaped large space in the coal mine. Through the network construction, the network stabilization and the network application, the system unifies the time reference of the base station-level network and improves the positioning accuracy of the network application by utilization of the base station-level network internal time synchronization method.

Classes IPC  ?

  • H04W 84/18 - Réseaux auto-organisés, p.ex. réseaux ad hoc ou réseaux de détection
  • H04W 56/00 - Dispositions de synchronisation
  • E21F 17/18 - Adaptations particulières des dispositifs de signalisation ou d'alarme

62.

A METHOD OF NITROGEN-PHOSPHORUS DOPED POROUS CARBON FOR OXYGEN REDUCTION ELECTROCATALYSIS WITHIN A WIDE PH RANGE

      
Numéro d'application 17775736
Statut En instance
Date de dépôt 2021-06-11
Date de la première publication 2023-08-31
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Xu, Lang
  • Qi, Jiawei
  • Jiang, Haishen
  • Bai, Peiyao
  • Liu, Weiqi
  • Jin, Bailin
  • Zhang, Wendu

Abrégé

A preparation method of nitrogen-phosphorus doped porous carbon for oxygen reduction electrocatalysis within a wide pH range, which uses natural mineral-based carbon sources as raw material and uses a sequential nitrogen and phosphorus doping process for synthesizing in two paths. The method provided may be highly cost-effective, sustainable, and suitable for large-scale utilization.

Classes IPC  ?

  • C01B 32/05 - Préparation ou purification du carbone non couvertes par les groupes , , ,

63.

PULSED LASER IN-SITU IMPACT-ASSISTED LASER CLADDING APPARATUS AND USE METHOD

      
Numéro d'application CN2023070035
Numéro de publication 2023/160248
Statut Délivré - en vigueur
Date de dépôt 2023-01-03
Date de publication 2023-08-31
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Haifeng
  • Shi, Mingtian
  • Zhu, Congcong
  • Liu, Hao
  • Hao, Jingbin
  • Liu, Xinhua

Abrégé

Disclosed are a pulsed laser in-situ impact-assisted laser cladding apparatus and a use method. The apparatus comprises an electronic computer, the electronic computer controlling a laser cladding manufacturing module and a pulsed laser dimming module. The pulsed laser dimming module comprises a pulsed laser and a dimming frame; an optical fiber access port is provided on the outer wall of the dimming frame, the pulsed laser is connected to the optical fiber access port by means of a pulsed laser optical fiber provided, the optical fiber access port is equipped with a first reflector capable of performing reciprocating rotation, a first galvanometer and a second reflector are respectively provided on both sides of the first reflector, and a second galvanometer is provided on the other side, where the first galvanometer is located, of the second reflector. By providing the dimming frame, the technical problem that under a complex trajectory, pulsed laser cannot follow a machining action of continuous laser to constantly act on the rear of a molten pool is solved.

Classes IPC  ?

  • C23C 24/10 - Revêtement à partir de poudres inorganiques en utilisant la chaleur ou une pression et la chaleur avec formation d'une phase liquide intermédiaire dans la couche
  • C21D 10/00 - Modification des propriétés physiques autrement que par traitement thermique ou déformation

64.

PRE-GROUTING TREATMENT METHOD FOR WATER HAZARDS IN SHAFT CONSTRUCTION

      
Numéro d'application CN2023076732
Numéro de publication 2023/160471
Statut Délivré - en vigueur
Date de dépôt 2023-02-17
Date de publication 2023-08-31
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Qian, Ziwei
  • Yu, Nengcheng
  • Gao, Longbo
  • Liu, Rongyi
  • Wang, Lei
  • Wu, Xianshuai
  • Zhang, Dong
  • Lv, Wenmao
  • Zhou, Hengxin
  • Cheng, Jidong
  • Hou, Junhua

Abrégé

A pre-grouting treatment method for water hazards in shaft construction, the method mainly comprising the steps of: performing surveying and setting out to obtain the plane position and downhole position of a shaft; analyzing geological data of the shaft to determine a zone of a lower section of the shaft that needs a grouting treatment; constructing an annular surrounding roadway (1) in the lower section of the shaft; constructing grouting drill holes (2) upwards in the lower section of the shaft to perform a pre-grouting treatment on an aquifer; after the grouting treatment on the lower section of the shaft is completed, performing a filling treatment on the annular surrounding roadway (1); normally excavating the shaft downwards to penetrate the treated aquifer in the lower section; and finally completing the construction of the shaft. The method is suitable for operating conditions in which there has been a roadway around the bottom of a shaft, the shaft is at a great depth, and an aquifer is mainly located in a bottomhole section. By means of the method, the upper-section excavation and lower-section water hazard pre-treatment of a shaft can be performed synchronously and operated in parallel, thereby reducing the time consumed by conventional grouting-from-the surface and pre-grouting-from-the-working-face, and thus saving on the overall shaft construction time.

Classes IPC  ?

  • E21D 5/04 - Revêtement des puits; Revêtements à cet effet avec des briques, du béton, des pierres ou matériaux de construction analogues
  • E21F 16/00 - Drainage

65.

METHOD FOR SCREENING MOLECULAR FUNCTIONAL GROUPS OF COAL SLIME FLOTATION COLLECTING AGENT

      
Numéro d'application CN2022133064
Numéro de publication 2023/160045
Statut Délivré - en vigueur
Date de dépôt 2022-11-21
Date de publication 2023-08-31
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xia, Yangchao
  • Gui, Xiahui
  • Xing, Yaowen
  • Zhu, Chunyun
  • Xia, Lingyong
  • Che, Tao
  • Xu, Baolin
  • Meng, Fancai
  • Xiao, Youfen

Abrégé

A method for screening molecular functional groups of a coal slime flotation collecting agent, relating to the field of flotation reagent design. Modified probes (14) having different flotation reagent molecular functional groups are prepared by means of deposition; then elastic deformation information generated in the process of feeding the modified probes (14) into a tested coal sample (9) is observed by means of an atomic force microscope (AFM), and probe feeding force information of the modified probes (14) in the probe feeding process is deduced according to the elastic deformation information; probe withdrawing force information corresponding to the modified probes (14) are collected to generate a probe withdrawing force curve; and probe withdrawing force curve values of all the modified probes (14) are compared, the larger the values are, the larger the adhesive force between the molecular functional groups of the flotation collecting agent on the modified probes (14) and the coal sample (9) is, and the larger the adhesive force is, the better the effect of the collecting agent deposited on the modified probes (14) is. The screening method is simple in steps, high in precision and intuitive, and the problems in the prior art that efficient collecting agent molecular functional groups are difficult to screen, a collecting agent regulation and control mechanism is not clear, etc. are solved.

Classes IPC  ?

  • G01N 19/04 - Mesure de la force d'adhérence entre matériaux, p.ex. du ruban adhésif, d'un revêtement

66.

ROCKBURST-ORIENTED WHILE-DRILLING DEVIATION-CORRECTING DEVICE FOR ANTI-BURST DRILLING ROBOT

      
Numéro d'application CN2022121662
Numéro de publication 2023/159940
Statut Délivré - en vigueur
Date de dépôt 2022-09-27
Date de publication 2023-08-31
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • CHINA COAL TECHNOLOGY & ENGINEERING GROUP CHONGQING RESEARCH INSTITUTE CO., LTD. (Chine)
Inventeur(s)
  • Si, Lei
  • Wang, Zhongbin
  • Kang, Mingxia
  • Tan, Chao
  • Yan, Haifeng
  • Liu, Xinhua
  • Wei, Dong
  • Liang, Bin
  • Zou, Xiaoyu
  • Zhao, Lala
  • Gu, Jinheng
  • Dai, Jianbo
  • Wang, Qingfeng
  • Xin, Dezhong

Abrégé

A rockburst-oriented while-drilling deviation-correcting device for an anti-burst drilling robot. A deviation-correcting structure is provided between a drill bit and an auger. A drill bit connection rod (2) passes through the center of an electric control machine (15) to be connected to the auger, the drill bit connection rod (2) being coaxial with the electric control machine (15). A plurality of oil pumps (11) are evenly arranged along the circumference of the drill bit connection rod (2), the top of each oil pump (11) being connected to a corresponding oil cylinder (6) by means of an oil feeding pipe (8) and an oil discharge pipe (10), that is, each oil pump (11) being cooperated with the corresponding oil cylinder (6) to work independently. An oil cylinder piston (5) is connected to the interior of each oil cylinder (6), an offset block (1) being fixed at an end of each oil cylinder piston (5). The offset blocks (1) are in contact with a coal wall to apply reverse displacement and counter-acting force to the auger and the drill bit, and deflection force and deflection displacement of a drilling robot during a drilling process are counteracted according to different extension and retraction quantities of the oil cylinders (6), and therefore correction of deviation and torsion of an auger mechanism can be achieved.

Classes IPC  ?

  • E21B 7/10 - Redressement des déviations du forage

67.

Characterization method of closed pores and connectivity of coal measure composite reservoirs

      
Numéro d'application 18124703
Numéro de brevet 11781962
Statut Délivré - en vigueur
Date de dépôt 2023-03-22
Date de la première publication 2023-08-17
Date d'octroi 2023-10-10
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Wang, Yang
  • Xiang, Jie
  • Chen, Shangbin
  • Zhang, Tong
  • Cao, Qingshun

Abrégé

Disclosed is a characterization method of closed pores and connectivity of coal measure composite reservoirs, including collecting samples of coal seams and shales reservoirs, carrying out low-field NMR experiments and NMR freeze-thaw experiments on plunger samples and crushed samples with different particle sizes to obtain cumulative pore volume distribution and differential pore size distribution of the crushed samples, comparing crushed samples with plunger samples for optimal crushed particle sizes, and preliminarily determining a distribution range of closed pores; carrying out SAXS experiments on crushed samples to obtain size distribution and volume of total pores of 1-100 nanometers; calculating pore volume of total pores and closed pore volume in composite reservoirs by low-field NMR experiments results; carrying out non-steady overburden permeability experiments and variable factors on plunger samples of coal seams, shales and tight sandstone to characterize the connectivity under influence of pores development and lithologic combinations.

Classes IPC  ?

  • G01B 13/06 - Dispositions pour la mesure caractérisées par l'utilisation de fluides pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
  • G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux
  • G01N 24/08 - Recherche ou analyse des matériaux par l'utilisation de la résonance magnétique nucléaire, de la résonance paramagnétique électronique ou d'autres effets de spin en utilisant la résonance magnétique nucléaire
  • G01N 33/24 - Matériaux de la terre
  • G01N 1/28 - Préparation d'échantillons pour l'analyse
  • G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
  • G01N 23/201 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la diffusion sous un petit angle, p.ex. la diffusion des rayons X sous un petit angle [SAXS]

68.

Timing alignment method for data acquired by monitoring units of borehole-surface micro-seismic monitoring system

      
Numéro d'application 18122140
Numéro de brevet 11719841
Statut Délivré - en vigueur
Date de dépôt 2023-03-16
Date de la première publication 2023-08-08
Date d'octroi 2023-08-08
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • Xuzhou Hongyi Technology Development Co., Ltd. (Chine)
Inventeur(s)
  • Gong, Siyuan
  • Ge, Qing
  • Dou, Linming

Abrégé

A timing alignment method for data acquired by monitoring units of a borehole-surface micro-seismic monitoring system includes acquiring two rock-burst waveform data segments with GPS timestamps; calculating a time difference and a number of sampling points between each pair of adjacent GPS timestamps; adding, on an equal-interval basis, a sampling time to a sampling point missing a timestamp between each pair of adjacent GPS timestamps; calculating average sampling frequencies of the two rock-burst waveform data segments, adding, on an equal-interval basis, a sampling time to a sampling point missing a timestamp except first and last GPS timestamps in each of the two data segments; obtaining sampling times of all sampling points, resampling the sampling times according to a uniform sampling frequency; calculating a rock-burst waveform data segment at a new sampling time with a linear interpolation formula, and aligning the sampling times of the two rock-burst waveform data segments.

Classes IPC  ?

  • G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
  • G04R 20/02 - Mise à l’heure à partir de l’information horaire portée dans le signal radio de façon explicite ou implicite le signal radio étant envoyé par un satellite de positionnement, p.ex. GPS

69.

MOBILE LIQUID NITROGEN FIRE EXTINGUISHING SYSTEM AND METHOD FOR UTILITY TUNNEL

      
Numéro d'application 18003312
Statut En instance
Date de dépôt 2020-12-02
Date de la première publication 2023-08-03
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Zhang, Guowei
  • Guo, Dong
  • Li, Huaxiang
  • Sun, Yinan
  • Li, Zheng
  • Zhang, Zhiwei
  • Yan, Su
  • Huang, Junbin

Abrégé

A mobile liquid nitrogen fire extinguishing system for a utility tunnel is provided, including a liquid nitrogen production assembly, a fire extinguishing assembly, a monitoring device, and a liquid nitrogen conveying tubing. The mobile fire extinguishing assembly includes a liquid nitrogen storage tank and a liquid nitrogen booster pump. The liquid nitrogen storage tank is connected to the liquid nitrogen booster pump. The liquid nitrogen booster pump conveys liquid nitrogen to branch pipes in the utility tunnel through the liquid nitrogen conveying tubing. Liquid nitrogen injection ports are formed in each of the branch pipes. The liquid nitrogen production assembly is mobile and conveys the prepared liquid nitrogen to the liquid nitrogen storage tank. The monitoring device includes a first monitoring assembly and a second monitoring assembly.

Classes IPC  ?

  • A62C 3/02 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers pour des zones d'embrasement, p.ex. des incendies de forêts, des feux souterrains
  • A62C 27/00 - Engins de lutte contre l'incendie montés sur roues ou véhicules terrestres de lutte contre l'incendie
  • A62C 31/05 - Buses spécialement conçues pour la lutte contre l'incendie avec au moins deux sorties
  • A62C 35/02 - Matériel installé à demeure avec des réservoirs pour délivrer la substance extinctrice

70.

Underground mining method for unexploited coal in boundary open-pit mine

      
Numéro d'application 18159102
Numéro de brevet 11821314
Statut Délivré - en vigueur
Date de dépôt 2023-01-25
Date de la première publication 2023-07-27
Date d'octroi 2023-11-21
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XINJIANG TIANCHI ENERGY CO., LTD. (Chine)
  • CHINA ENERGY GROUP XINJIANG ENERGY COMPANY LTD (Chine)
Inventeur(s)
  • Chen, Shuzhao
  • Liu, Fuming
  • Chang, Bo

Abrégé

An underground mining method for unexploited coal in a boundary open-pit mine is provided. A shaft construction platform is arranged at one rock step to two rock steps above a coal seam. Intermediate bridges are built starting from a pit bottom. Mining area clay is laid on a working slope where no intermediate bridge is built and on a side slope with an outcrop of the coal seam as a sealing layer to seal the slopes. Auxiliary vertical shafts and main inclined shafts are dug. The pit bottom is dug downward to form a digging space on a side close to the working slope between two adjacent ones of the intermediate bridges, and clay is filled into the digging space to form an artificial water barrier layer. A roadway communicating the main inclined shafts and the auxiliary vertical shafts is constructed, and a coal seam stope face is arranged.

Classes IPC  ?

  • E21C 41/18 - Procédés d'exploitation minière souterraine; Tracés à cet effet pour la lignite ou le charbon
  • E21C 41/28 - Procédés d'exploitation minière en surface; Tracés à cet effet pour la lignite ou le charbon
  • E21C 41/32 - Réaménagement de surfaces d'exploitation minière
  • E02D 17/20 - Stabilisation de talus ou de rampes
  • C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

71.

VIRTUAL REALITY HIGH-SIMULATION TRAINING SYSTEM

      
Numéro d'application CN2023070961
Numéro de publication 2023/138410
Statut Délivré - en vigueur
Date de dépôt 2023-01-06
Date de publication 2023-07-27
Propriétaire
  • XUZHOU JIUDING ELECTROMECHANICAL FACTORY (Chine)
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
  • Cheng, Deqiang
  • Xu, Chuanxing
  • Han, Kun
  • Shang, Zhensheng
  • Yang, Jianjun
  • Kou, Qiqi
  • Li, Gang
  • Wang, Xiaoyi
  • Liu, Hai
  • Fu, Xinhua
  • Zhu, Yuancai
  • Wang, Yong
  • Ge, Yuntao
  • Ma, Yunlai
  • Wu, Zhaoli
  • Li, Yibo
  • Xia, Zhanguo
  • Zhang, Chao
  • Liu, Youwei
  • Li, Nana

Abrégé

A virtual reality high-simulation training system, comprising a simulation cabin (1). A frame plate (2) is arranged in the simulation cabin (1), and a seat (3) is fixedly installed on the frame plate (2). A motor (5) is fixedly installed on the frame plate (2), and a rotating rod (6) is fixedly installed on an output shaft of the motor (5). A first belt pulley (7) is fixedly installed on the rotating rod (6). A bearing box (15) is fixedly installed on the seat (3), a second belt pulley (8) is rotatably installed in the bearing box (15), and a same first belt (9) is transmissively installed on the first belt pulley (7) and on the second belt pulley (8). The interior of the simulation cabin (1) is provided with a fixing mechanism, a pushing mechanism, and an adjustment mechanism. The degree of comfort is improved, the immersion effect is better, training time can be lengthened for trainees, the training effect is improved, the usage is simple, and operation is convenient.

Classes IPC  ?

  • G09B 9/00 - Simulateurs pour l'enseignement ou l'entraînement

72.

RELAY SELECTION METHOD FOR UNMANNED AERIAL VEHICLES IN POST DISASTER EMERGENCY SCENARIOS IN UNDERGROUND SPACE

      
Numéro d'application 18113258
Statut En instance
Date de dépôt 2023-02-23
Date de la première publication 2023-07-13
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Wang, Bowen
  • Sun, Yanjing
  • Li, Song
  • Yun, Xiao
  • Chen, Ruirui
  • Xu, Yonggang

Abrégé

Disclosed is a relay selection method for unmanned aerial vehicles in post disaster emergency scenarios in underground space, comprising the following steps: collecting a maximum rate, a minimum rate and an average rate of data transmission assisted by a D2D user through an unmanned aerial vehicle (UAV) based on a prediction range of the D2D user for the UAV, and obtaining a first uncertain preference order of the D2D user for the UAV and a second uncertain preference order of the UAV for the D2D user; obtaining a preference strategy of the D2D user for the UAV based on the first uncertain preference order and the second uncertain preference order; and exchanging and matching the UAVs matched by any two D2D users based on the many-to-one bilateral matching model, so as to obtain a stable matching result of bilateral exchange.

Classes IPC  ?

  • H04B 7/185 - Stations spatiales ou aériennes
  • H04W 4/90 - Services pour gérer les situations d’urgence ou dangereuses, p.ex. systèmes d’alerte aux séismes et aux tsunamis

73.

DRIVABLE AREA DETECTION AND AUTONOMOUS OBSTACLE AVOIDANCE METHOD FOR UNMANNED TRANSPORTATION DEVICE FOR DEEP, CONFINED SPACES

      
Numéro d'application CN2022077433
Numéro de publication 2023/123642
Statut Délivré - en vigueur
Date de dépôt 2022-02-23
Date de publication 2023-07-06
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Chunyu
  • Zhu, Zhencai
  • Zhang, Yidong
  • Zhang, Xin
  • Gu, Zhen

Abrégé

A drivable area detection and autonomous obstacle avoidance method for an unmanned transportation device for deep, confined spaces comprises: acquiring three-dimensional point cloud data of a tunnel; calculating a two-dimensional image drivable area of a coal mine tunnel; acquiring a three-dimensional point cloud drivable area of the coal mine tunnel; establishing a two-dimensional grid map and a hazard map, and using an improved particle swarm path planning method designed for deep mine confined tunnels to carry out autonomous obstacle avoidance path planning; using a greedy strategy to acquire an optimal candidate end point of the driving path, and causing an unmanned auxiliary transportation vehicle to travel on the basis of the optimal end point and an optimal driving path. By means of a single camera sensor device, an image of a coal mine tunnel is actively acquired, allowing for stable, accurate and rapid calculation of a drivable area of the three-dimensional space of a deep, underground space for an auxiliary transportation vehicle, and allows for autonomous obstacle avoidance driving of an unmanned auxiliary transportation vehicle in deep mine confined tunnels on the basis of drivable area detection and safety evaluation information, which is significant for automatic driving technology for coal mine auxiliary transportation vehicles.

Classes IPC  ?

  • G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
  • G06V 10/26 - Segmentation de formes dans le champ d’image; Découpage ou fusion d’éléments d’image visant à établir la région de motif, p.ex. techniques de regroupement; Détection d’occlusion

74.

COAL MINE AUXILIARY TRANSPORTATION VEHICLE POSITIONING METHOD AND SYSTEM

      
Numéro d'application CN2022123140
Numéro de publication 2023/124340
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de publication 2023-07-06
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Jiang, Fan
  • Zhu, Zhencai
  • Huang, Xingtao
  • Zhou, Gongbo
  • Liu, Niansheng
  • Wang, Libing
  • Zhang, Chuansheng
  • Peng, Yuxing
  • Shen, Gang
  • Zhang, Chaofan
  • Yi, Wenwen
  • Cheng, Shuman
  • Wang, Zhengxu

Abrégé

A coal mine auxiliary transportation vehicle positioning method, relating to the technical field of vehicle transportation positioning. The method comprises the following steps: first, acquiring a rotating speed of each wheel and a steering angle of a steering wheel, respectively constructing a kinematics model based on non-turning wheels of a vehicle and a kinematics model based on turning wheels of the vehicle, and constructing a vehicle geometric center-based kinematics model according to the kinematics model based on the non-turning wheels of the vehicle and the kinematics model based on the turning wheels of the vehicle; and second, according to a travelling status of the vehicle, a, when the vehicle is in a normal travelling state, performing positioning using a combination of the vehicle geometric center-based kinematics model and a strapdown inertial navigation system (1); and b, when the vehicle is in an abnormal travelling state, performing combined positioning using the kinematics model based on the non-turning wheels of the vehicle and the strapdown inertial navigation system (1). The influence of the abnormal state on the positioning precision can be maximized, the positioning precision is improved, the compatibility is high, the precision is high, the method is simple, easy to implement, convenient, and reliable. Also provided is a coal mine auxiliary transportation vehicle positioning system.

Classes IPC  ?

  • B61L 25/02 - Indication ou enregistrement de la position ou de l'identité de véhicules ou de trains
  • G01S 19/00 - Systèmes de positionnement par satellite à radiophares; Détermination de position, de vitesse ou d'attitude au moyen de signaux émis par ces systèmes

75.

CAPSULE SLOW-RELEASE COLLECTOR FOR COAL FLOTATION, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

      
Numéro d'application CN2022133063
Numéro de publication 2023/124643
Statut Délivré - en vigueur
Date de dépôt 2022-11-21
Date de publication 2023-07-06
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Gui, Xiahui
  • Xing, Yaowen
  • Wang, Yusai
  • Wang, Lei
  • Xu, Mengdi
  • Xia, Yangchao
  • Che, Tao
  • Meng, Fancai
  • Li, Yonggai

Abrégé

Disclosed in the present invention are a capsule slow-release collector for coal flotation, and a preparation method therefor and an application thereof. Components of the collector comprise a collecting agent, a functional agent, and an emulsifier; components of the collecting agent comprise diesel oil, pine oil, and an oleic acid-based ester; the functional agent is prepared by mixing a sodium silicate solution and a sulfuric acid solution in proportion; the emulsifier is a nonionic surfactant. Compared with a conventional collector, the capsule slow-release collector in the present invention has a special capsule structure and has double functions of collection and selective inhibition; when the collector capsule shell interacts with hydrophobic sites of coal molecules, the original capsule structure collapses, and the inhibitor component in the capsule core is released; when the collector does not interact with coal molecules, the inhibitor is temporarily stored in the collector. Slow release of the inhibitor avoids excessive consumption in a short time, the problem that the inhibitory effect becomes poor as the concentration of the inhibitor decreases is alleviated, the capsule slow-release collector achieves higher selectivity and has a wide application prospect.

Classes IPC  ?

76.

AUTOMATIC CUTTING METHOD WITH REDUCED SENSORS AND NO TEACHING FOR SHEARER IN INTELLIGENT FULLY-MECHANIZED MINING FACE

      
Numéro d'application CN2022121658
Numéro de publication 2023/116103
Statut Délivré - en vigueur
Date de dépôt 2022-09-27
Date de publication 2023-06-29
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Si, Lei
  • Wang, Zhongbin
  • An, Xiaofei
  • Tan, Chao
  • Liang, Bin
  • Yan, Haifeng
  • Wei, Dong
  • Liu, Xinhua

Abrégé

An automatic cutting method with reduced sensors and no teaching for a shearer in an intelligent fully-mechanized mining face, comprising: initializing an automatic cutting parameter configuration data table according to three-dimensional modeling data of a coal mine coal seam of an intelligent fully-mechanized mining face; and in a process of performing automatic cutting according to the automatic cutting parameter configuration data table, automatically extracting, by means of a shearer in the fully-mechanized mining face, data such as the position, direction, speed, and cutting drum height of the shearer in a coal cutting process, and cleaning up redundant data in a process of cutting by one cut. The method implements automatic cutting technology of the shearer in the fully-mechanized mining face without teaching is achieved, and improves the intelligent running effect of drum shearers. Also provided is an automatic cutting system with reduced sensors and no teaching for a shearer in an intelligent fully-mechanized mining face.

Classes IPC  ?

  • E21C 35/00 - EXPLOITATION DES MINES OU CARRIÈRES - Détails ou accessoires de machines pratiquant des saignées ou libérant complètement la matière minérale de la veine, non prévus dans les groupes , ou
  • E21C 35/24 - Télécommande spécialement adaptée aux machines pratiquant des saignées ou libérant complètement la matière minérale
  • E21C 41/16 - Procédés d'exploitation minière souterraine; Tracés à cet effet

77.

WELL WALL PRESSURE CORROSION TEST SYSTEM

      
Numéro d'application CN2022139893
Numéro de publication 2023/116598
Statut Délivré - en vigueur
Date de dépôt 2022-12-19
Date de publication 2023-06-29
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Han, Tao
  • Xue, Yong
  • Luo, Tingting
  • Zhang, Yu
  • Yang, Weihao
  • Wang, Yansen
  • Yang, Zhijiang
  • Zhang, Chi
  • Zhang, Tao
  • Huang, Jiahui
  • Li, Haipeng

Abrégé

A well wall pressure corrosion test system, comprising a pressure bearing device, a confining pressure application device, and a seepage water pressure application device, wherein the confining pressure application device and the seepage water pressure application device provide confining pressure and seepage water pressure for the pressure bearing device, respectively, and keep the confining pressure and the seepage water pressure constant on the pressure bearing device. An axial pressure is applied to a piston (10) by means of a hydraulic jack (9) and is then transferred to a sample (14) to complete axial pressure application. The confining pressure is applied to hydraulic oil by a manual pump (35) in combination with a first energy accumulator (40) and then transferred to the sample (14) to complete confining pressure application. The seepage water pressure is applied to a corrosion solution by a water pump group (23) in combination with a second energy accumulator (30) and then transferred to the sample (14) to complete seepage water pressure application. Therefore, the dilemma of a device for research on sample corrosion by a corrosion solution lacking multi-factor coupling in the past is alleviated, and the design of a device system for research on sample corrosion by a corrosion solution with multi-factor coupling is provided.

Classes IPC  ?

  • G01N 17/00 - Recherche de la résistance des matériaux aux intempéries, à la corrosion ou à la lumière
  • G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux

78.

CONSTANT-PRESSURE EXPERIMENT BASED DEVICE AND METHOD FOR MEASURING VALVE LEAKAGE OF PRESSURE BALANCE VALVE

      
Numéro d'application CN2022098350
Numéro de publication 2023/115841
Statut Délivré - en vigueur
Date de dépôt 2022-06-13
Date de publication 2023-06-29
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU UNIVERSITY OF TECHNOLOGY (Chine)
  • XUZHOU SHENGAN INDUSTRIAL SAFETY TESTING RESEARCH INSTITUTE CO., LTD. (Chine)
Inventeur(s)
  • Liu, Xiumei
  • Zhao, Qiao
  • He, Jie
  • Xiang, Shaobin
  • Li, Beibei
  • Li, Wei
  • Yi, Kunliang
  • Wu, Su
  • Chen, Jinsong
  • Liu, Qihang
  • Wei, Jianqiu
  • Liu, Weiwei
  • Zhang, Yujia

Abrégé

A constant-pressure experiment based device and method for measuring a valve leakage of a pressure balance valve. The device comprises a valve to be subjected to measurement (1), a gas storage tank (2), a mass block working pipeline (9), a mass block (10), a stop valve (15) and a gas compressor (16), wherein a gas flow inlet of the valve to be subjected to measurement (1) is connected to the gas storage tank (2) by means of a gas conveying pipeline (19); the gas compressor (16) is connected to the gas storage tank (2) by means of the gas conveying pipeline (19); the other gas flow outlet of the gas storage tank (2) is connected to a gas flow inlet of the gas conveying pipeline (19) and is fixed by means of bolts; a gas flow outlet of the gas conveying pipeline (19) is connected to the mass block working pipeline (9); the mass block (10) is in gastight connection with the mass block working pipeline (9); and the mass block (10) can freely move in the mass block working pipeline (9) according to the magnitude of gas pressure in the mass block working pipeline (9). Leakages of a valve under different standard measurement pressures can be measured; the weight of the mass block (10) can be further reduced; a measurement problem occurring when there is a micro leakage in the valve is solved, thereby solving the problem of low precision of leakage measurement; and the application range is wide.

Classes IPC  ?

  • G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes

79.

METHOD FOR POSITIONING AUXILIARY TRANSPORTATION VEHICLE IN COAL MINE AND POSITIONING SYSTEM THEREOF

      
Numéro de document 03197861
Statut Délivré - en vigueur
Date de dépôt 2022-09-30
Date de disponibilité au public 2023-06-27
Date d'octroi 2024-03-19
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU KERUI MINING TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
  • Jiang, Fan
  • Zhu, Zhencai
  • Huang, Xingtao
  • Zhou, Gongbo
  • Liu, Niansheng
  • Wang, Libing
  • Zhang Chuansheng
  • Peng, Yuxing
  • Shen, Gang
  • Zhang, Chaofan
  • Yi, Wenwen
  • Cheng, Shuman
  • Wang, Zhengxu

Abrégé

A method for positioning an auxiliary transportation vehicle in a coal mine and a positioning system thereof are disclosed. The method comprises: S 1, acquiring a rotation velocity of each wheels and a rotation angel of a steering wheel, constructing a kinematics model based on the vehicle's non-steering wheels and a kinematics model based on the vehicle's steering wheels respectively, and constructing a kinematics model based on a vehicle's geometric center according to the kinematics model based on the non-steering wheels and the kinematics model based on the steering wheels; and S2, according to the vehicle's travelling condition, integrating the kinematics model based on the geometric center with a strap-down inertial navigation system for positioning, when the vehicle is in a normal travelling state; and integrating, the kinematics model based on the non-steering wheels with the strap-down inertial navigation system for positioning, when the vehicle is in an abnormal travelling state.

Classes IPC  ?

  • G05D 1/24 - Dispositions pour déterminer la position ou l’orientation
  • E21F 13/00 - Transport spécialement adapté aux conditions du fond
  • G05D 1/224 - Dispositions de sortie sur les dispositifs de commande à distance, p. ex. écrans, dispositifs haptiques ou haut-parleurs
  • G05D 1/225 - actionnées par des ordinateurs externes
  • G05D 1/226 - Liaisons de communication avec les dispositions de commande à distance
  • G05D 1/247 - utilisant des signaux fournis par des sources artificielles extérieures au véhicule, p. ex. balises de navigation
  • G05D 1/43 - Commande de la position ou du cap par référence à un système à deux dimensions
  • G05D 1/49 - Commande de l’attitude, c.-à-d. commande du roulis, du tangage ou des embardées
  • G05D 1/606 - Compensation ou utilisation des conditions ambiantes externes, p. ex. du vent ou des courants d’eau (maintien de la position G05D 1/611)
  • G05D 1/648 - Exécution d’une tâche au sein d’une zone ou d’un espace de travail, p. ex. nettoyage

80.

MINING ORE TANK DEDUSTING DEVICE

      
Numéro de document 03184493
Statut En instance
Date de dépôt 2022-12-21
Date de disponibilité au public 2023-06-22
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • He, Xinjian
  • Li, Xiaochuan
  • Zhang, Mingrui
  • Zhou, Fubao
  • Wei, Tao
  • Yang, Xuan
  • Peng, Zeyin

Abrégé

A mining ore tank dedusting device includes at least one dust hood, at least one pneumatic conveying pipeline and a synchronous transportation system controlled by open and close of valves. The synchronous transportation system includes an air inlet, a movable air box, a ventilation channel, ventilation openings and valves. The movable air box is configured to be an inverted U-shape and is installed at an upper surface of the at least one ventilation channel and is movable synchronously with the at least one pneumatic conveying pipeline. The ventilation openings are provided at an upper surface of the ventilation channel and connect the movable air box and the ventilation channel. The valves are provided in the ventilation openings, with distances between neighboring ventilation openings being smaller than a length of the movable air box to ensure that the movable air box always covers at least one of the ventilation openings.

Classes IPC  ?

  • B08B 15/02 - Précautions prises pour empêcher les crasses ou les fumées de s'échapper de la zone où elles sont produites; Ramassage ou enlèvement des crasses ou fumées de cette zone par utilisation de chambres ou de hottes recouvrant cette zone
  • E21F 5/00 - Moyens ou procédés pour empêcher, fixer, abattre ou enlever la poussière; Prévention des explosions ou des feux
  • E21F 5/20 - Enlèvement ou abattage de la poussière

81.

Gear-track-detachable driving device in monorail crane suitable for steep slope

      
Numéro d'application 18001311
Numéro de brevet 11738973
Statut Délivré - en vigueur
Date de dépôt 2022-03-25
Date de la première publication 2023-06-22
Date d'octroi 2023-08-29
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Zhang, Yidong
  • Peng, Yuxing
  • Du, Mai
  • Hu, Hengzhen
  • Zheng, Fuping
  • Tang, Yu

Abrégé

A gear-track-detachable driving device in a monorail crane for a steep slope includes a driving mechanism, a traveling mechanism, a four-bar linkage mechanism, a connection mechanism, a meshing track plate and transition track plates. The driving mechanism includes driving motors, meshing gears, a bearing rod, and a bearing plate. The traveling mechanism includes traveling wheels, clamping wheels, a shell and telescopic struts. The linkage mechanism includes first and second rockers, a linkage, and a cylinder. The connection mechanism includes fixation plates, a connection plate and connection bolts. When the crane travels to the slope front, the cylinder drives the linkage mechanism to send the meshing gears onto the transition track and adjusts the linkage mechanism into a dead point state, and the telescopic struts are locked. After the crane enters the slope, the meshing gears cooperate with the meshing track plate to provide an auxiliary drive for the crane.

Classes IPC  ?

  • B66C 9/14 - Mécanismes d'entraînement pour chariot ou grue
  • B66C 11/06 - Chariots suspendus roulant sur monorail
  • B66C 15/00 - Mécanismes de sécurité

82.

DEVICE APPLICABLE FOR DUST REMOVAL IN MINE TANKS

      
Numéro de document 03184483
Statut En instance
Date de dépôt 2022-12-21
Date de disponibilité au public 2023-06-22
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Li, Xiaochuan
  • Zhang, Mingrui
  • Wei, Tao
  • Zhou, Fubao
  • He, Xinjian
  • Peng, Zeyin
  • Yang, Xuan

Abrégé

A device for dust removal in mine tanks, including dust hoods, pneumatic conveying pipelines, a tape-sealed synchronous transfer system and a dust removal device. The tape-sealed synchronous transfer system includes a gas transmission port, a movable air box, a ventilating groove, ventilating openings, rubber tapes, and rollers. The movable air box is an inverted "U" shape and is movably arranged on an upper surface of the ventilating groove and is movable synchronously with the pneumatic conveying pipelines. On an upper surface of the ventilating groove are provided ventilating openings for connecting the movable air box and the ventilating groove. Distances among ventilating openings are smaller than a length of the movable air box to ensure the movable air box covers at least one of the ventilating openings at any time, and more than a ventilating opening communicates with the movable air box and the ventilating groove all times.

Classes IPC  ?

  • B08B 15/02 - Précautions prises pour empêcher les crasses ou les fumées de s'échapper de la zone où elles sont produites; Ramassage ou enlèvement des crasses ou fumées de cette zone par utilisation de chambres ou de hottes recouvrant cette zone
  • E21F 5/00 - Moyens ou procédés pour empêcher, fixer, abattre ou enlever la poussière; Prévention des explosions ou des feux
  • E21F 5/20 - Enlèvement ou abattage de la poussière

83.

VIDEO PERSONNEL RE-IDENTIFICATION METHOD BASED ON TRAJECTORY FUSION IN COMPLEX UNDERGROUND SPACE

      
Numéro d'application 18112725
Statut En instance
Date de dépôt 2023-02-22
Date de la première publication 2023-06-22
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Sun, Yanjing
  • Yun, Xiao
  • Dong, Kaiwen
  • Song, Kaili
  • Cheng, Xiaozhou

Abrégé

Disclosed is a video personnel re-identification method based on trajectory fusion in a complex underground space; an accurate personnel trajectory prediction may be realized through the Social-GAN model; and a spatio-temporal trajectory fusion model is constructed, and personnel trajectory videos that are not affected by the occlusion are introduced into the re-identification network to solve the problem of false extraction of the apparent visual features caused by the occlusion. In addition, a trajectory fusion MARS_traj data set is constructed, and a number of time frames and space coordinate information are added to the MARS data set.

Classes IPC  ?

  • G06T 7/20 - Analyse du mouvement
  • G06V 10/26 - Segmentation de formes dans le champ d’image; Découpage ou fusion d’éléments d’image visant à établir la région de motif, p.ex. techniques de regroupement; Détection d’occlusion
  • G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p.ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersections; Analyse de connectivité, p.ex. de composantes connectées
  • G06V 10/62 - Extraction de caractéristiques d’images ou de vidéos relative à une dimension temporelle, p.ex. extraction de caractéristiques axées sur le temps; Suivi de modèle
  • G06V 10/74 - Appariement de motifs d’image ou de vidéo; Mesures de proximité dans les espaces de caractéristiques
  • G06V 10/80 - Fusion, c. à d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
  • G06F 16/738 - Présentation des résultats des requêtes

84.

FULL-DUPLEX RELAY-BASED UAV AIR COMPUTATION SYSTEM AND TRAJECTORY AND POWER OPTIMIZATION METHOD

      
Numéro d'application CN2022105164
Numéro de publication 2023/109108
Statut Délivré - en vigueur
Date de dépôt 2022-07-12
Date de publication 2023-06-22
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Li, Song
  • Sun, Yanjing
  • Wang, Bowen
  • Zhou, Yu
  • Yun, Xiao
  • Zhang, Xiaoguang
  • Ma, Zhanguo

Abrégé

Disclosed in the present invention are a full-duplex relay-based UAV air computation system and a trajectory and power optimization method. In the UAV air computation system, a UAV is used as a full-duplex relay to perform data aggregation and forwarding. The method comprises: establishing an optimization problem with the objective of minimizing a time-averaged mean-square error of air computation, solving the optimization problem under the constraints of sensor transmitting power, an information transmission rate, a UAV trajectory, and a denoising factor, and for the overall joint optimization problem, determining optimization variables one by one by using an alternate optimization method according to high coupling of the optimization variables. According to the present invention, the mean-square error is minimized under the guarantee of a communication rate, the optimization problem is decomposed into four independent sub-optimization problems, and the trajectory and power of the UAV are optimized by using a low complexity algorithm.

Classes IPC  ?

85.

ROCK BURST HAZARD PREDICTION METHOD BASED ON SEISMIC WAVE ENERGY ATTENUATION CHARACTERISTICS OF MINE EARTHQUAKE CLUSTER

      
Numéro d'application 17993895
Statut En instance
Date de dépôt 2022-11-24
Date de la première publication 2023-06-01
Propriétaire
  • China University of Mining and Technology (Chine)
  • Xuzhou Wushuo Information Technology Co., Ltd. (Chine)
  • Xuzhou Hongyi Technology Development Co., Ltd. (Chine)
Inventeur(s)
  • Cao, Anye
  • Liu, Yaoqi
  • Xue, Chengchun
  • Wang, Changbin
  • Yang, Xu
  • Wen, Yingyuan
  • Guo, Wenhao
  • Wang, Songwei
  • Bai, Xianxi
  • Lv, Guowei
  • Peng, Yujie
  • Li, Geng
  • Ma, Zhifeng
  • Xue, Jianqiu

Abrégé

A rock burst hazard prediction method based on vibration wave energy attenuation characteristics of a mine earthquake cluster is provided. The rock burst hazard prediction method comprehensively considers the static load and dynamic load effects of the vibration waves of the mine earthquake cluster based on vibration wave energy attenuation characteristics of the mine earthquake cluster. The static load strength index and the dynamic load strength index involved in the method have clear physical meanings. A comprehensive prediction index calculation model proposed based on the dynamic and static load superposition principle of rock burst occurrence is clear, and the method has a firm theoretical support as well as strong universality and operability. Meanwhile, the updating and adjustment of weights are rapid and the objective judgment and prediction of the final comprehensive prediction results are efficient, and the high-energy mine earthquake and impact behavior area can be effectively predicted.

Classes IPC  ?

  • G01V 1/30 - Analyse
  • G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction

86.

Fly ash-based environmentally-friendly hydrogel with high water retention for preventing and controlling spontaneous combustion of coal in mine and preparation method thereof

      
Numéro d'application 18071653
Numéro de brevet 11718792
Statut Délivré - en vigueur
Date de dépôt 2022-11-30
Date de la première publication 2023-06-01
Date d'octroi 2023-08-08
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Qin, Botao
  • Shi, Quanlin
  • Hao, Mingyue
  • Zhao, Shuang
  • Xu, Yizhen
  • Shao, Xu
  • Ma, Zujie

Abrégé

The present invention provides a fly ash-based environmentally-friendly hydrogel with a high water retention for preventing and controlling spontaneous combustion of coal in a mine and a preparation method thereof. The hydrogel includes the following raw materials in the following weight percentages: 10% to 30% of a gel-forming material A, 20% to 45% of a crosslinking material B, and water as a balance, where the gel-forming material A is prepared by physical blending of a biodegradable superabsorbent resin, anionic polyacrylamide, a sesbania gum, and fly ash in a weight ratio of (1-3):(0.5-1):(0.5-1):(95-98); and the crosslinking material B is prepared by subjecting zeolite, expandable graphite, and an aluminum citrate complex in a weight ratio of (60-78):(20-36):(2-4) to mixing, dispersing, adsorbing, and freeze-drying. The gel-forming material A is added to water and stirred at room temperature until homogeneous, and then the crosslinking material B is added and stirred until homogeneous to obtain the hydrogel. In the present disclosure, the environmentally-friendly hydrogel with the high water retention is prepared with wastes such as fly ash as a base material, and can be prepared simply with a low cost. In addition, the hydrogel has the advantages of degradability, strong water retention, and a controllable gelation time. The hydrogel can cover and wet a coal body for a long time, and prevent and control the spontaneous combustion of coal in a mine for a prolonged time.

Classes IPC  ?

  • C09K 21/10 - Substances organiques contenant de l'azote
  • C09K 21/02 - Substances inorganiques
  • C10L 5/02 - Briquettes formées principalement de matières carbonées d'origine minérale
  • C10L 10/00 - Utilisation d'additifs à des fins particulières dans les combustibles ou les feux

87.

Intelligent reliability evaluation and service life prediction method for kilometer deep well hoist brake

      
Numéro d'application 17919285
Numéro de brevet 11893547
Statut Délivré - en vigueur
Date de dépôt 2021-02-23
Date de la première publication 2023-06-01
Date d'octroi 2024-02-06
Propriétaire China University of Mining and Technology (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Peng, Yuxing
  • Zhou, Gongbo
  • Shen, Gang
  • Tang, Yu
  • Li, Xiang
  • Wang, Wei

Abrégé

An intelligent reliability evaluation and service life prediction method for a kilometer deep well hoist brake, the method including: the establishment of a digital twin model for a hoist brake, data acquisition and synchronization, and reliability evaluation and service life prediction, wherein the digital twin model for the hoist brake can accurately reflect actual physical characteristics of the hoist brake, the data acquisition and synchronization can realize real-time mapping between a physical entity of the hoist brake and the digital twin model therefor, and furthermore, on the basis of the digital twin model for the hoist brake, the reliability evaluation and service life prediction are realized. Digital twin technology is combined with a reliability analysis method, so that real-time updating of reliability evaluation and service life prediction of the hoist brake are realized.

Classes IPC  ?

  • G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
  • G06Q 10/20 - Administration de la réparation ou de la maintenance des produits

88.

LIFTING APPLIANCE AND METHOD FOR UNDERGROUND AUXILIARY TRANSPORTATION SYSTEM TO TRANSFER MATERIALS

      
Numéro d'application CN2022094418
Numéro de publication 2023/092967
Statut Délivré - en vigueur
Date de dépôt 2022-05-23
Date de publication 2023-06-01
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • CHANGZHOU DEVELOPMENT & MANUFACTURE CENTRE CO., LTD. (Chine)
  • XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD. (Chine)
Inventeur(s)
  • Ma, Chi
  • Peng, Yuxing
  • Zhu, Zhencai
  • Wang, Meilin
  • Hu, Changhua
  • Shi, Fahui
  • Xiao, Xingming
  • Qian, Jun
  • Jiang, Fan
  • Li, Yunwang
  • Wang, Dagang
  • Yu, Qihang

Abrégé

The present invention provides a lifting appliance and method for an underground auxiliary transportation system to transfer materials. The lifting appliance comprises a lifting appliance body, guide plates mounted on two ends of the lifting appliance body by means of bolts, rotating locks mounted on four ends of the lifting appliance body, driving units for driving the rotating locks to rotate, a transmission assembly for connecting the rotating locks to the driving units, lifting pins used for preventing the rotating locks from rotating mistakenly, and sensors for controlling the lifting appliance to operate and protecting safety. The lifting appliance of the present invention can meet the ground-to-air and ground-to-ground transfer requirements of underground materials, the safety protection sensor can prevent misoperation of the lifting appliance, and the lifting appliance can adapt to standard containers of different sizes and has certain adaptability to narrow terrains, and can improve the stability of the whole mechanism in cooperation with a pull rope mechanism. Descending, unlocking, locking and ascending can be automatically achieved, thereby improving the working efficiency.

Classes IPC  ?

  • B66C 1/66 - Eléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens mécaniques comportant des organes de saisie ayant une forme complémentaire de celle des objets à manipuler s'engageant dans des trous, des évidements ou des renflements spécialement aménagés sur les objets pour en permettre la prise
  • B66C 11/04 - Chariots suspendus
  • B66C 15/00 - Mécanismes de sécurité

89.

FULL-LENGTH VIBRATION EXCITABLE COMPONENT DEVICE FOR MEASURING STRENGTH OF ROCK AND GEL MATERIAL

      
Numéro d'application CN2022079440
Numéro de publication 2023/087575
Statut Délivré - en vigueur
Date de dépôt 2022-03-05
Date de publication 2023-05-25
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Song, Lei
  • Shi, Hao
  • Zhang, Houquan
  • Wang, Yu
  • Wang, Guozhu
  • Zhao, Huayun
  • Rong, Chuanxin
  • Long, Wei

Abrégé

A full-length vibration excitable component device for measuring the strength of a rock and a gel material. The device comprises a steel rod member (1), a vehicle body (2), a vibration motor (3), a frequency measurement element (4) and an integrated lead harness (5), wherein a through slot (6) is provided in the steel rod member (1), the vehicle body (2) is placed in the through slot (6), and a first mounting slot and a second mounting slot are respectively provided on the top of the vehicle body (2). By means of the device, a large number of steel rod members (1) such as reinforcing steel bars and anchor rods used in geotechnical engineering and structural engineering are taken as "signal generators", the interior of each steel rod member (1) is grooved for having a movable vibration excitation apparatus and a frequency sensing element arranged therein, and the positions of the vibration excitation apparatus and the frequency sensing element are accurately determined by using an integrated lead harness (5) with scales, thereby realizing operations of performing excitation and signal collection at any position on the full length of the metal rod member. The vibration excitation and detection elements of the device can be recycled and reused, thereby facilitating maintenance, such that the detection cost can be significantly reduced.

Classes IPC  ?

  • G01N 19/00 - Recherche sur les matériaux par des procédés mécaniques
  • G01N 29/04 - Analyse de solides

90.

UNMANNED AERIAL VEHICLE RELAY SELECTION METHOD FOR UNDERGROUND SPACE POST-DISASTER EMERGENCY SCENARIO

      
Numéro d'application CN2022104900
Numéro de publication 2023/087746
Statut Délivré - en vigueur
Date de dépôt 2022-07-11
Date de publication 2023-05-25
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Wang, Bowen
  • Sun, Yanjing
  • Zhang, Beibei
  • Yun, Xiao
  • Wang, Tingting
  • Xu, Yonggang
  • Hao, Zhiying
  • Ma, Zhanguo

Abrégé

Disclosed is an unmanned aerial vehicle relay selection method for an underground space post-disaster emergency scenario, comprising the following steps: acquiring, on the basis of a prediction range of a D2D user for an unmanned aerial vehicle, the maximum rate, the minimum rate and the average rate of the D2D user transmitting data by means of the assistance of the unmanned aerial vehicle, so as to acquire a first uncertain preference sequence of the D2D user for the unmanned aerial vehicle and a second uncertain preference sequence of the unmanned aerial vehicle for the D2D user; acquiring, on the basis of the first uncertain preference sequence and the second uncertain preference sequence, a preference policy of the D2D user for the unmanned aerial vehicle, and after performing matching according to a multiple-to-one bilateral matching algorithm, swapping and matching any two unmanned aerial vehicles that have been matched by the D2D user, so as to acquire a stable matching result of the bilateral swapping. The algorithm of the present invention has low computational complexity, allows the same relay unmanned aerial vehicle to cooperate in the same time slot with a plurality of D2D user pairs for communication, achieves stable matching results, and can ensure that as many rescuers as possible can promptly and effectively communicate.

Classes IPC  ?

  • H04W 4/70 - Services pour la communication de machine à machine ou la communication de type machine
  • H04W 40/20 - Sélection d'itinéraire ou de voie de communication, p.ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la position ou de la localisation géographique
  • H04B 7/185 - Stations spatiales ou aériennes

91.

POWERFUL MIXING AND SHEARING DEVICE AND METHOD SUITABLE FOR FINE-PARTICLE FLOTATION OF MINERALS

      
Numéro d'application CN2022131073
Numéro de publication 2023/088162
Statut Délivré - en vigueur
Date de dépôt 2022-11-10
Date de publication 2023-05-25
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xing, Yaowen
  • Gui, Xiahui
  • Ding, Shihao
  • Cao, Yijun
  • Liu, Jiongtian
  • Xu, Mengdi
  • Xia, Yangchao
  • Wang, Lei
  • Guo, Wang

Abrégé

A powerful mixing and shearing device and method suitable for fine-particle flotation of minerals. The powerful mixing and shearing device suitable for the fine-particle flotation of minerals comprises a slurry mixing barrel. The slurry mixing barrel is provided in sequence from bottom to top with a first-section powerful mixing area (100), a second-section powerful shearing area (200), and a third-section powerful conveying area (300); mineral slurry enters the first-section powerful mixing area (100) from the bottom of the slurry mixing barrel, passes through the second-section powerful shearing area (200) and is then outputted from the third-section powerful conveying area (300).

Classes IPC  ?

  • B03D 1/16 - Machines de flottation à propulseurs; Machines à subaération

92.

VIDEO PERSON RE-IDENTIFICATION METHOD BASED ON COMPLEX UNDERGROUND SPACE TRAJECTORY FUSION

      
Numéro d'application CN2022105043
Numéro de publication 2023/082679
Statut Délivré - en vigueur
Date de dépôt 2022-07-12
Date de publication 2023-05-19
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Sun, Yanjing
  • Yun, Xiao
  • Dong, Kaiwen
  • Cheng, Xiaozhou
  • Zhang, Beibei
  • Wang, Tingting
  • Chen, Yongheng

Abrégé

A video person re-identification method based on complex underground space trajectory fusion, solving the problem of large-range target shielding in complex underground space video person re-identification. Accurate person trajectory prediction can be realized by means of a Social-GAN model; a time-space trajectory fusion model is constructed, and a person trajectory video that is not affected by shielding is introduced into a re-identification network, thereby solving the problem of apparent visual feature extraction errors caused by shielding, and effectively relieving the influence of a shielding problem on re-identification performance; in addition, a trajectory fusion MARS_traj dataset is constructed, and a time frame number and space coordinate information are added for a person on the MARS dataset, so that the dataset is suitable for the video person re-identification method based on complex underground space trajectory fusion.

Classes IPC  ?

  • G06V 20/40 - RECONNAISSANCE OU COMPRÉHENSION D’IMAGES OU DE VIDÉOS Éléments spécifiques à la scène dans le contenu vidéo
  • G06V 20/52 - Activités de surveillance ou de suivi, p.ex. pour la reconnaissance d’objets suspects
  • G06V 10/75 - Appariement de motifs d’image ou de vidéo; Mesures de proximité dans les espaces de caractéristiques utilisant l’analyse de contexte; Sélection des dictionnaires
  • G06V 10/774 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p.ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]; Séparation aveugle de source méthodes de Bootstrap, p.ex. "bagging” ou “boosting”
  • G06V 10/80 - Fusion, c. à d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
  • G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques

93.

PHYSICS-BASED AND DATA-DRIVEN INTEGRATED METHOD FOR ROCK BURST HAZARD ASSESSMENT

      
Numéro d'application 17903683
Statut En instance
Date de dépôt 2022-09-06
Date de la première publication 2023-05-18
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Cai, Wu
  • Lu, Qiang
  • Gong, Siyuan
  • Cao, Anye
  • Zhu, Xuming
  • Ma, Xiang
  • Dou, Linming

Abrégé

The present disclosure provides a physics-based and data-driven integrated method for rock burst hazard assessment, including the following steps: determining an initial stress concentration coefficient by conducting grid discretization on an assessment region, and assigning a value to each of grid nodes using a Weibull distribution function; obtaining a stress concentration coefficient value of each grid node under physics-based models; introducing seismic wave CT detection data to obtain stress concentration coefficient distribution in the assessment region under the integration of a seismic wave CT detection and its derived characterization stress model; introducing microseismic data to obtain stress concentration coefficient distribution in the assessment region under the integration of a microseismic damage reconstruction stress model; and assessing the degree of rock burst hazard according to the size of the stress concentration coefficient value.

Classes IPC  ?

  • G01V 1/30 - Analyse
  • G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction

94.

Bidirectional anti-slipping apparatus in monorail crane based on inner ratchet mechanism

      
Numéro d'application 18157621
Numéro de brevet 11691854
Statut Délivré - en vigueur
Date de dépôt 2023-01-20
Date de la première publication 2023-05-18
Date d'octroi 2023-07-04
Propriétaire
  • CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
  • XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD. (Chine)
Inventeur(s)
  • Lu, Hao
  • Zhu, Zhencai
  • Zhang, Yidong
  • Peng, Yuxing
  • Du, Mai
  • Hu, Hengzhen
  • Zheng, Fuping
  • Tang, Yu

Abrégé

A bidirectional anti-slipping apparatus includes a vehicle following stabilizing mechanism, a track, and two front and rear sets of locking mechanisms with opposite directions. The vehicle following stabilizing mechanism includes a protective shell, a middle vehicle capable of sliding and a hydraulic cylinder configured to control the middle vehicle to slide are arranged in the protective shell, a front vehicle and a rear vehicle are respectively fixed at two front and rear ends of the protective shell. Each locking mechanism includes two left and right groups of ratchet devices, each of the ratchet devices includes a fixing rod, a plurality of inner ratchet wheels capable of rotating unidirectionally are respectively fixed at two ends of the fixing rod on one side of the fixing rod proximate to the track, the inner ratchet wheels on the two front and rear sets of locking mechanisms rotate in opposite directions.

Classes IPC  ?

  • B66C 9/18 - Mécanisme de translation incorporé ou adapté aux chariots ou aux grues avec moyens pour bloquer chariots ou grues sur les chemins ou voies de roulement afin d'empêcher les mouvements intempestifs
  • B66C 9/02 - Mécanisme de translation incorporé ou adapté aux chariots ou aux grues pour chariots ou pour grues suspendus
  • B66C 9/14 - Mécanismes d'entraînement pour chariot ou grue
  • F16D 63/00 - Freins non prévus ailleurs; Freins combinant plusieurs des types mentionnés dans les groupes
  • B66C 9/16 - Mécanisme de translation incorporé ou adapté aux chariots ou aux grues avec moyens pour maintenir l'alignement entre roues et voie

95.

TEST SYSTEM AND METHOD FOR DYNAMIC INTERACTION FORCE BETWEEN FLOTATION PARTICLES AND BUBBLES

      
Numéro d'application CN2022126400
Numéro de publication 2023/071904
Statut Délivré - en vigueur
Date de dépôt 2022-10-20
Date de publication 2023-05-04
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xing, Yaowen
  • Gui, Xiahui
  • Sun, Lijuan
  • Cao, Yijun
  • Liu, Qinshan
  • He, Lin
  • Zhang, Fanfan
  • Yangchen, Yimin
  • Zhang, Yiqing

Abrégé

A test system and method for a dynamic interaction force between flotation particles and bubbles, relating to the technical field of sensitive force test research, and solving the problem in the prior art that a measurement device is high in price and is mostly suitable for a fluid dynamics condition of a low Reynolds number. The test system comprises a motion driving unit, a displacement sensor (2), a bubble generation unit, a mechanical test unit, an image monitoring unit and a signal acquisition and processing unit; the motion driving unit is connected to the bubble generation unit and can move in a vertical direction; the displacement sensor (2) is connected to the motion driving unit; the mechanical test unit is provided below the bubble generation unit; the image monitoring unit is provided on a side of the mechanical test unit; the signal acquisition and processing unit is electrically connected to the displacement sensor (2), the mechanical test unit, and the image monitoring unit, respectively. The present invention is flexible in operation and controllable in costs.

Classes IPC  ?

  • G01N 15/00 - Recherche de caractéristiques de particules; Recherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
  • G01N 19/00 - Recherche sur les matériaux par des procédés mécaniques

96.

PRE-FLOTATION HIGH EFFICIENCY SLURRY CONDITIONING DEVICE FOR WIDE-PARTICLE-GRADE FLOTATION

      
Numéro d'application 17911769
Statut En instance
Date de dépôt 2020-11-27
Date de la première publication 2023-05-04
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Gui, Xiahui
  • Xing, Yaowen
  • Ding, Shihao
  • Cao, Yijun
  • Liu, Jiongtian
  • Che, Tao
  • Meng, Fancai
  • Zhang, Youfei
  • Xu, Mengdi
  • Liu, Min
  • Wei, Liyong

Abrégé

A pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation, suitable for coal slime flotation. Said device comprises a slurry conditioning drum (15) having a columnar structure on top and an inverted frustrum structure below, an ore slurry outlet (4) is provided at an upper part of a side wall, ore slurry pump separation openings (5) are provided at two sides below the ore slurry outlet (4), ore slurry jet openings (17) are respectively provided at two sides of the columnar structure, and circular cutting isolation plates (11) and flow guide plates (10) are provided in alternation at inner sides of the upper half of the slurry conditioning drum (15); a dual channel jet circulation chemical feed system comprises chemical feed pipes (13), each chemical feed pipe (13) comprises an inlet end, a diffusion end, and a chemical feed pipe opening arranged at a throat area of said pipe, the inlet end is connected to a three-way pipe by means of a centrifugal pump (8), which is connected to an ore slurry inlet (6) and an ore slurry pump separation opening (5), a mixing shaft (7) is provided in the axial direction within the slurry conditioning drum (15), a plurality of mixing impellers (14) are arranged on the mixing shaft (7), and the bottom-most two mixing impellers (14) and the lowest two circular cutting isolation plates (11) are arranged at a same horizontal height. The present apparatus can effectively improve coal slime hydrophobic flocculation and fine slime separation, improve an ore slurry preprocessing effect, and effectively alleviate internal flow field pressure within a flotation device.

Classes IPC  ?

  • B03D 1/16 - Machines de flottation à propulseurs; Machines à subaération

97.

Apparatus and method for testing combined dynamic-static loading strength of rock-like material

      
Numéro d'application 17970592
Numéro de brevet 11644398
Statut Délivré - en vigueur
Date de dépôt 2022-10-21
Date de la première publication 2023-05-04
Date d'octroi 2023-05-09
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xie, Lixiang
  • Jin, Jiawan
  • Chen, Chao

Abrégé

An apparatus and a method for testing combined dynamic-static loading strength of a rock-like material are provided. The apparatus and the method can test the combined dynamic-static loading strength of the rock-like material. The apparatus comprises an explosion load loading device, a static load loading device, and a stress wave rod transferring device. The explosion load loading device is connected with one end of the stress wave rod transferring device. The stress wave rod transferring device is connected with a rock-like material specimen. The stress wave rod transferring device is connected with the static load loading device.

Classes IPC  ?

  • G01N 3/313 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par des explosifs
  • G01N 3/06 - Adaptations particulières des moyens d'indication ou d'enregistrement
  • G01N 33/24 - Matériaux de la terre

98.

TIME DOMAIN ELECTROMAGNETIC TENSOR BASED LOGGING METHOD

      
Numéro d'application CN2022128195
Numéro de publication 2023/072235
Statut Délivré - en vigueur
Date de dépôt 2022-10-28
Date de publication 2023-05-04
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Yang, Haiyan
  • Liu, Zhixin
  • Chu, Danhua
  • Yue, Jianhua
  • Hu, Shuanggui
  • Gu, Yanyan
  • Xu, Yunlei
  • Li, Wenyu
  • Ran, Huageng
  • Che, Rongqi
  • Sun, Menglang
  • Li, Zhenyang

Abrégé

A time domain electromagnetic tensor based logging method, relating to the field of induction logging. A transmitting coil system Tx and a receiving coil system Rx are each composed of three orthogonal direction coils, and the transmitting coil system and the receiving coil system form a borehole probe; a time domain electromagnetic field is excited by means of two orthogonal transmitting coil systems Tx, and a secondary field signal is received by two orthogonal receiving coil systems Rx located above transmitting coils and having a distance D; during each measurement, three directions are used for transmitting, nine component data is received at the same time, and each component is a series of induction potentials in one-to-one correspondence with measurement time sequences, and a potential or resistance change, from near to far, of the rock stratum where a measurement point is located is obtained after time-depth conversion. According to the logging method, the downhole construction efficiency is improved, the anisotropy characteristics of a geologic body are effectively identified by fully detecting geological information of a geologic body in each component direction, and the detection precision and range are improved.

Classes IPC  ?

  • G01V 3/18 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation spécialement adaptée au carottage
  • G01V 3/38 - Traitement de données, p.ex. pour l'analyse, pour l'interprétation ou pour la correction
  • E21B 47/00 - Relevés dans les trous de forage ou dans les puits

99.

Environmental monitoring apparatus and method for mine tunneling robot

      
Numéro d'application 17996664
Numéro de brevet 11761334
Statut Délivré - en vigueur
Date de dépôt 2022-01-17
Date de la première publication 2023-04-27
Date d'octroi 2023-09-19
Propriétaire CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Chine)
Inventeur(s)
  • Xu, Shaoyi
  • Zhu, Zhencai
  • Li, Wei
  • Lu, Wenting
  • Shen, Gang
  • Liu, Songyong
  • Xing, Fangfang
  • Jiang, Hongxiang
  • Si, Lei

Abrégé

f, when the roadheader is heading forward and encounters abnormal geological bodies.

Classes IPC  ?

  • E21D 9/00 - Tunnels ou galeries, avec ou sans revêtements; Procédés ou appareils pour leur exécution; Tracé des tunnels ou des galeries
  • E21D 9/10 - Exécution en utilisant des machines à forer ou à inciser
  • E21C 35/24 - Télécommande spécialement adaptée aux machines pratiquant des saignées ou libérant complètement la matière minérale
  • E21C 39/00 - Dispositifs pour tester sur place la dureté ou d'autres propriétés de matières minérales, p.ex. pour fournir des informations relatives au choix d'outils miniers appropriés

100.

Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same

      
Numéro d'application 17923645
Numéro de brevet 11650135
Statut Délivré - en vigueur
Date de dépôt 2022-01-28
Date de la première publication 2023-04-20
Date d'octroi 2023-05-16
Propriétaire
  • China University of Mining and Technology (Chine)
  • Shangdong University (Chine)
Inventeur(s)
  • Chen, Wei
  • Ye, Jihong
  • Jiang, Jian
  • Li, Rui
  • Lin, Chunjin
  • Li, Mengtian

Abrégé

A multi-dimensional space load and fire test system for a tunnel structure, which includes a multi-point loading self-balancing reaction force system having a rigid platform, two furnace body side-sealing apparatuses (22) and a model assembly and transport apparatus (23) for transporting and situating a tunnel model are on a track on the rigid platform (9), the two furnace body side-sealing apparatuses (22) are respectively used for sealing two end openings of the tunnel model, a tower-type combustion vehicle can be placed within an inner cavity of the tunnel model, a plurality of sets of evenly distributed self-adaptive loading apparatuses (3) used for exerting loading forces on an outer wall of the tunnel model are connected between two reaction force frames (1) of the multi-point loading self-balancing reaction force system. The present system is able to perform loading on tunnel models having different cross section shapes, can be adapted to testing requirements of tunnel structures having different cross section shapes, and with respect to tunnel structure fire testing in particular, a camera of the present system has a large imaging angle of view, the present invention has good heat resistance, possesses both terminal imaging and distance measurement, and can amply satisfy a use requirement for the high temperature environment of a tunnel fire.

Classes IPC  ?

  • G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p.ex. fléchissement de ponts ou d'ailes d'avions
  • G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
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