An X-ray fluorescence analyzer system including an X-ray tube, a slurry handling unit, and a crystal diffractor located in a first direction from the slurry handling unit. The crystal diffractor separates a predefined wavelength range from fluorescent X-rays that propagate into the first direction, and directs the fluorescent X-rays in the separated predefined wavelength range to a radiation detector. The crystal diffractor includes a pyrolytic graphite crystal. The predefined wavelength range includes characteristic fluorescent radiation of a pre-defined element of interest with its atomic number Z between 41 and 60, the ends included. An energy resolution of the radiation detector is better than 600 eV at the energy of the characteristic fluorescent radiation.
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
A method for cleaning of a roller screen transporting and screening particles by means of at least three rotating rollers. The rollers are installed in succession at given clearances and arranged transversally in relation to the transport direction of the particles to screen a desired range of particle sizes. At least one roller changes its circumferential velocity and/or its rotational direction over time at defined time intervals for defined time periods such that for this defined time period for at least one pair of neighbored rollers one roller has a higher circumferential velocity than the other and/or both rollers roll in opposite rotational directions.
An X-ray fluorescence analyzer including an X-ray tube for emitting incident X-rays in the direction of a first optical axis. A slurry handling unit is configured to maintain a constant distance between a sample of slurry and the X-ray tube. A first crystal diffractor is located in a first direction from the slurry handling unit. The first crystal diffractor includes a first crystal and a first radiation detector configured to detect fluorescent X-rays diffracted by the first crystal at a first energy resolution. A second crystal diffractor is located in a second direction from the slurry handling unit. The second crystal diffractor includes a second crystal and a second radiation detector configured to detect fluorescent X-rays diffracted by the second crystal at a second energy resolution. The first crystal is a pyrolytic graphite crystal, the second crystal is of a material other than pyrolytic graphite, and the first and second crystal diffractors are configured to direct to their respective radiation detectors characteristic fluorescent radiation of a same element.
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
G21K 1/06 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p.ex. pour focaliser ou pour modérer utilisant la diffraction, la réfraction ou la réflexion, p.ex. monochromateurs
4.
X-ray fluorescence analyzer, and a method for performing X-ray fluorescence analysis
An X-ray fluorescence analyzer includes an X-ray tube for emitting incident X-rays in the direction of a first optical axis. A slurry handling unit is configured to maintain a constant distance between a sample of slurry and the X-ray tube. A first crystal diffractor is located in a first direction from the slurry handling unit and configured to separate a predefined first wavelength range from fluorescent X-rays that propagate into the first direction. The first crystal diffractor is configured to direct the fluorescent X-rays in the separated predefined first wavelength range to a first radiation detector. The first crystal diffractor includes a pyrolytic graphite crystal that has a diffractive surface, which is a simply connected surface. The first radiation detector is a solid-state semiconductor detector.
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
G21K 1/06 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p.ex. pour focaliser ou pour modérer utilisant la diffraction, la réfraction ou la réflexion, p.ex. monochromateurs
5.
X-RAY FLUORESCENCE ANALYZER, AND A METHOD FOR PERFORMING X-RAY FLUORESCENCE ANALYSIS
An X-ray fluorescence analyzer comprises an X-ray tube for emitting incident X-rays in the direction of a first optical axis. A slurry handling unit is configured to maintain a constant distance between a sample of slurry and the X-ray tube. A first crystal diffractor is located in a first direction from the slurry handling unit, and configured to separate a predefined first wavelength range from fluorescent X-rays that propagate into the first direction. It is configured to direct the fluorescent X-rays in the separated predefined first wavelength range to a first radiation detector. The input power rating of said X-ray tube is at least 400 watts. The first crystal diffractor comprises a pyrolytic graphite crystal. The optical path between said X-ray tube and the slurry handling unit is direct with no diffractor therebetween.
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
G21K 1/06 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p.ex. pour focaliser ou pour modérer utilisant la diffraction, la réfraction ou la réflexion, p.ex. monochromateurs
A method and apparatus of preparing lithium compound(s) from lithium-containing mineral includes a) a leaching step, wherein the lithium-containing mineral is leached in aqueous leach solution containing alkaline carbonate, for liberating lithium and phosphate(s) from the lithium-containing mineral, thus obtaining leach slurry containing lithium carbonate and phosphate(s) leach slurry, b) a carbonization step, wherein the leach slurry containing lithium carbonate and phosphate(s), obtained from the leaching step, is reacted with an alkali earth metal compound in the presence of CO2 for obtaining a carbonated slurry containing lithium hydrogen carbonate, and for precipitating phosphate(s) contained in the leach slurry as insoluble phosphate compound(s), c) a solid-liquid separation step, wherein the carbonated slurry obtained from carbonization step is subjected to solid-liquid separation wherein the undissolved mineral and phosphate compound(s) are separated as solids that can be recovered or discarded, thereby obtaining a solution containing lithium hydrogen carbonate.
C01B 25/32 - Phosphates de magnésium, de calcium, de strontium ou de baryum
C22B 3/12 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques alcalines
C22B 3/44 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques
7.
Method and apparatus for combustion of gaseous or liquid fuel
A method and apparatus for combustion of fuel in a combustion chamber with a hydraulic diameter D. Fuel and a primary oxidant are introduced via a burner lance into the combustion chamber, having a certain mean velocity u1 at entry, and a secondary oxidant with a mean velocity of u2 is introduced into the combustion chamber. The burner lance has a position p that has a distance Id1I defined as the smallest distance between p and a combustion chamber centerline.
F23D 14/24 - Brûleurs à gaz sans prémélangeur, c. à d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p.ex. avec des conduits disposés parallèlement ou se croisant au moins un des fluides étant soumis à un mouvement tourbillonnant
F23D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c. à d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p.ex. avec des conduits disposés parallèlement ou se croisant
A froth flotation cell for treating mineral ore particles suspended in slurry includes a tank, a gas supply, a first froth collection channel, a second froth collection channel arranged between the centre of the tank and the first froth collection channel, and a radial froth collection launder including a radial froth overflow lip, and extending from the first froth collection channel towards the second froth collection channel. The froth flotation cell further includes a radial froth crowder including a crowding sidewall, and extending from the second froth collection channel to the first froth collection channel. Further, a froth flotation line, its use and a froth flotation method are presented.
A flotation line for treating mineral ore particles suspended in slurry is disclosed. The flotation line includes a rougher part with at least one rougher flotation cell from which overflow is arranged to flow directly into a cleaner flotation line; and a scavenger part with at least two scavenger flotation cells from which overflow is arranged to flow back into a rougher flotation cell, or into a regrinding step and then into a cleaner flotation line. Underflow from a last scavenger flotation cell is arranged to be removed from the flotation line as tailings. At least 75% of the flotation cells include a mechanical agitator including a system for introducing flotation gas into the flotation cell. At least one of the flotation cells of the flotation line includes a mechanical agitator including a microbubble generator for introducing microbubbles into the slurry.
A froth flotation unit for treating mineral ore particles suspended in slurry includes a tank, a gas supply for introducing flotation gas into the slurry to form froth, and a first froth collection launder including a first froth overflow lip facing towards the centre of the tank. The froth flotation unit has a pulp area of at least 15 m2 measured at a mixing area. The froth flotation unit further includes a second froth collection launder with a first froth overflow lip facing the perimeter of the flotation tank, and a froth blocker arranged between the first froth overflow lip and the second froth overflow lip. A froth flotation line, its use, and a froth flotation method are also disclosed.
A feed mixture distribution device configured to even out a feed of feed mixture in an annular feed mixture feed channel of a burner. The feed mixture distribution device includes a cylindrical member having a cylindrical wall, a first end, a second end, and a longitudinal central axis X. The cylindrical member is at the first end provided with rectangular flat plate means, which extend radially from the cylindrical wall of the cylindrical member and which are arranged symmetrically about the longitudinal central axis X of the cylindrical member. The cylindrical wall of the cylindrical member is between the rectangular flat plate and the second end provided with helical plate means arranged symmetrically about the longitudinal central axis X of the cylindrical member.
A liquid filtration apparatus includes a series of upright filter plates forming a filter plate pack. Filtering spaces are formed in the filter plate pack. The liquid filtration apparatus includes at least one filtering space and a filter chamber that is at least partly limited laterally by a filter media. The filtering spaces have an elongate bottom discharge opening limited by two first opposite side walls and provided with a first inflatable and deflatable hose seal extending across the elongate bottom discharge opening and configured to selectively open and close the elongate bottom discharge opening at the first inflatable and deflatable hose seal. The first inflatable and deflatable hose seal are in the elongate bottom discharge opening fastened at one of the first opposite side walls of the elongate bottom discharge opening.
B01D 25/164 - Presses à chambre et à plaque, c. à d. dans lesquelles les bords latéraux des éléments filtrants sont calés entre les deux plaques filtrantes successives
F16J 15/46 - Joints d'étanchéité par bague de garniture dilatée ou comprimée dans son logement par pression d'un fluide, p.ex. garnitures gonflables
13.
Plant and method for the thermal treatment of solids
A method and its related plant for the thermal treatment of iron containing oxide, in which fine-grained solids are heated in a preheating calcining stage and exposed to a reduction gas in a subsequent reduction stage. Off-gas from the reduction stage is guided through a separation device wherein water originating from the reduction stage is separated. The water separated in the separation device is recycled into a water treatment section, from which the recycled water is supplied to a water electrolysis plant and/or a steam reforming plant producing hydrogen, and the produced hydrogen is supplied to the reduction stage as reductant and/or to the preheating calcining stage as fuel and/or to the gas heater as fuel and/or from which the recycled water is supplied to the separation device.
A froth collection launder for a collection of froth from a mineral flotation includes a first and a second sidewall which are joined to form a bottom including a tip extending along the bottom, the first sidewall including a first end and the second sidewall including a second end at their open ends, at least one of the first and the second ends includes a froth overflow lip, and when the froth collection launder is positioned at its operation position a centre line is located in the middle of the first and the second end in the cross direction (x) of the froth collection launder. The tip is located between the centre line and one of the first and the second end in the cross direction (x) of the froth collection launder and the tip forms the lowest point of the froth collection launder.
A method of operating a filter press, wherein filter material is fed into a filter chamber so as to form a filter cake between at least two sides of a flexible said filter medium. Filtrate is received from the filter chamber and the filter cake formed the filter chamber is discharged. Prior to discharging the filter cake, compression is applied on the filter cake formed within the filter chamber by providing compression fluid gas at a compression pressure exceeding a prevailing pressure within the filter chamber, directly on a side of the filter medium exterior to the filter chamber, so as to exert said compression pressure directly on said side of the filter medium, thereby causing the filter medium to yield against the filter cake.
B01D 25/12 - Filtres-presses, c. à d. du type à plaque ou du type à plaque et cadre
B01D 29/84 - Manipulation du gâteau de filtration dans le filtre pour des raisons autres que la régénération pour le séchage utilisant des gaz ou par chauffage
B01D 29/82 - Manipulation du gâteau de filtration dans le filtre pour des raisons autres que la régénération pour le séchage par compression
A liquid filtration apparatus includes a series of upright filter plates forming a filter plate pack. Filtering spaces are formed in the filter plate pack. The liquid filtration apparatus includes at least one filtering space and a filter chamber that is at least partly limited laterally by a filter media. The at least one filtering space has an elongated bottom discharge opening at a level below the filter chamber. The elongated bottom discharge opening is provided with a first openable and closable hatch arrangement and with a second openable and closable hatch arrangement extending across the elongated bottom discharge opening.
B01D 25/164 - Presses à chambre et à plaque, c. à d. dans lesquelles les bords latéraux des éléments filtrants sont calés entre les deux plaques filtrantes successives
F16J 15/02 - Joints d'étanchéité entre surfaces immobiles entre elles
A rotary bed-type electric furnace includes a rotary bed configured to carry material, and a rotator configured to rotate the rotary bed so that material carried on the rotary bed passes through peripheral zones of the rotary bed-type electric furnace. The peripheral zones include a feeding zone configured to receive material on the rotary bed, a drying zone configured to dry and heat material by means of electrical energy, a heating zone configured to heat material by means of electrical energy, a cooling zone configured to lower the temperature of the material and configured to release gases from the material, and a discharging zone configured to discharge material from the rotary bed of the furnace.
F27B 9/06 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement
F27B 9/16 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet circulaire ou courbe
C21B 13/08 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs dans des fours tournants
18.
Froth flotation arrangement and a froth flotation method
A froth flotation arrangement and method for treating mineral ore particles suspended in slurry includes a flotation cell for separating the slurry into an underflow and an overflow and a primary line including at least three flotation cells connected in series, wherein each subsequent flotation cell is arranged to receive the underflow from the previous flotation cell, the flotation cell includes a tank and an impeller within the tank, and the flotation cell includes a gas supply within the tank, the tank includes a volume of at least 200 m3, the flotation cell including a froth collection launder capable to receive the overflow the froth collection launder including a froth overflow lip, the flotation cell having an available froth surface area (A froth), the flotation cell having a pulp area (A pulp), where the pulp area (A pulp) is calculated as an average from the cross sectional areas of the tank at the height (h1) of the impeller. A ratio between a height (h) from a bottom of the tank to the froth overflow lip of the froth collection launder and the diameter (D) of the tank at the height (h1) of the impeller (h/D) is less than 1.5.
An arrangement and a method for controlling a dewatering process including measuring values representing operating parameters of the gravitational sedimentation device and using the values as input values for a predictive multivariable model for predicting an operating state of the gravitational sedimentation device. The disclosure further relates to obtaining reference values for the operating parameters, determining at least one predicted output for an operating parameter of the gravitational sedimentation device, and comparing the predicted output to at the reference values to determine control values that will affect changes in operation of the gravitational sedimentation device.
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
B01D 21/08 - Bacs de décantation comportant des compartiments de floculation
B01D 21/06 - Bacs de décantation à racloirs mobiles à racloirs rotatifs
B01D 21/32 - Commande de la densité du liquide clair ou du sédiment, p.ex. commande optique
B01D 21/34 - Commande de la répartition de l'alimentation; Commande du niveau du liquide
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
G05B 13/04 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
An open-ended grinding mill (1) includes a drum (2) including a cylindrical shell (3), wherein the longitudinal axis (4) of the drum is arranged in a substantially horizontal position in a use position of the grinding mill (1). The drum (2) includes a first end (5) at the feed end of the shell and a second end (6) at the discharge end of the shell. The grinding mill further includes a bearing (8) supporting the drum at the second end, and a support structure (9) to connect the drum (2) to the bearing (8). The support structure is configured to provide a wall external to the shell, whereby the shell and the support structure provide a double-wall structure separating the bearing from the inside of the drum.
B02C 17/00 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets
B02C 17/18 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets - Parties constitutives
B02C 17/04 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets à cuves non perforées
A cyclone for the separation of solid particles and/or at least one liquid from a fluid, featuring a housing, an inlet opening for introducing the fluid together with the solid particles and/or the at least one liquid into the housing, a discharge port for the solid particles and/or the at least one liquid, a dip tube for discharging the fluid from the housing, and at least two guide vanes. Each guiding vanes shows a geometrical form with at least three edges e1, e2, e3. Further, each guide vane is directly or indirectly fixed to the housing with at least one edge e3 at a fixing point, whereby an area a is defined as the cross-sectional area of the housing intersecting the fixed edges e3. In addition, each guide vane shows at least two edges e1 and e2 which are not fixed to the housing, whereby the first edge e1 has a distance d1 and the second edge e2 has a distance d2, and whereby d11,25*L1.
B01D 45/12 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge
B04C 5/103 - Bâtis ou éléments des appareils, p.ex. volets ou guides
B04C 5/13 - Structure du guide pour la phase légère, p.ex. pour faire sortir la matière en spirale ou en la dispersant formé comme un capteur de tourbillon, et s'étendant à l'intérieur de la chambre du tourbillon; Evacuation du viseur de tourbillon autrement que par le haut du cyclone; Dispositifs de commande de l'évacuation de la phase légère
A method and an arrangement for controlling a burner of a suspension smelting furnace. The burner includes a reaction gas feeding device, and a fine solids feeding device. The fine solids feeding device being at an upstream end of the fine solids feeding device pivotably supported in the reaction gas feeding device. The burner including by at least one first mechanical actuator configured to center the fine solids feeding device in the annular reaction gas outlet opening. Said at least one first mechanical actuator being in response to receiving the control signal configured to perform a centering action to center the fine solids channel in the annular reaction gas outlet opening.
F27D 21/02 - Dispositifs d'observation ou d'éclairage
F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27B 15/14 - Aménagement des dispositifs de chauffage
F27B 15/10 - Aménagement des dispositifs d'alimentation en air ou gaz
23.
Sparger device for sparging a fluid into a slurry tank, flotation apparatus and system having such sparger device, and method for setting control fluid pressure of a sparger device
A sparger device for sparging fluid into a slurry tank includes a hollow elongated body having a nozzle opening for sparging a sparging fluid flow to a slurry tank. The device further includes a needle for opening and closing the nozzle opening, and a control device being arranged to actuate the needle. The control device includes a control chamber partitioned into a first portion and second portion such that a pressure differential between the first portion and the second portion, closes or opens the nozzle opening and prevents slurry backflow from the slurry tank. The second portion may be provided with a control fluid pressure preventing slurry. A flotation apparatus and a flotation system in with such a sparger device are also discussed.
The present disclosure relates to hydrometallurgical technologies wherein liquid-liquid extraction, also called solvent extraction, is used to separate and concentrate metal ions. Exemplary embodiments relate to solvent extraction of copper and a diluent useful in copper solvent extraction. A bio-based composition can fulfil physico-chemical properties that are desired for solvent extraction. Moreover, a composition is disclosed, which in addition to providing more environmental friendly alternative, can also improve the solvent extraction process of copper.
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
A method for making a shell plate that is mountable to a shell of a grinding mill for grinding ore, said shell plate includes a shell plate body having a first portion including a fixing surface for fixing the shell plate body to the shell and a second portion including a wear surface facing toward interior of the grinding mill, said first portion and said second portion forming a continuous shell plate body, the second portion includes polyurethane such that the wear surface is made of polyurethane.
B29C 45/14 - Moulage par injection, c. à d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule fermé; Appareils à cet effet en incorporant des parties ou des couches préformées, p.ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B02C 17/18 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets - Parties constitutives
B02C 17/00 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets
B02C 17/04 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets à cuves non perforées
A flotation method for recovering valuable metal containing ore particles from ore particles suspended in slurry is disclosed. In the method, the slurry is treated in an at least one overflow flotation cell and the valuable metal containing ore particles are recovered by conducting the continuous upwards flow of slurry out of the at least one overflow flotation cell as slurry overflow. At least part of the slurry overflow is conducted to a further treatment step in a treatment system.
B03D 1/02 - Procédés de flottation par formation d'écume
G01F 1/00 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu
B02C 23/20 - Addition de fluide, dans un but autre que celui de broyer ou de désagréger par l'énergie du fluide après broyage ou désagrégation
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
A horizontal pressure filter including a washing liquid recovery channel for receiving unused washing liquid from the washing liquid inlet channel and conducting said unused washing liquid to a washing liquid recovery outlet. A flow controller arranged to selectively open and close a flow connection between the washing liquid inlet channel and the washing liquid recovery channel, and respectively, between a compressed gas inlet and the washing liquid inlet channel, such that a gas flow from the compressed gas inlet to the washing liquid recovery channel via the washing liquid inlet channel may be induced, so as to flush unused washing liquid remaining in the washing liquid inlet channel to the washing liquid recovery outlet.
B01D 25/28 - Lixiviation ou lavage des gâteaux de filtration dans le filtre
B01D 25/164 - Presses à chambre et à plaque, c. à d. dans lesquelles les bords latéraux des éléments filtrants sont calés entre les deux plaques filtrantes successives
B01D 25/00 - Filtres formés par l'assemblage de plusieurs éléments filtrants fixés ensemble ou parties de tels éléments
The present invention provides a wear liner assembly (13) adapted to be secured to a structure (15). The wear liner assembly comprises a wear liner (14) having a first material secured to a backing plate (17). The backing plate has at least one hole (43) therethrough. A first fastener portion is adapted to co-operate with a second fastener portion to securing the wear liner to the structure. The first fastener portion is received in the at least one hole and is at least partially housed within the wear liner.
A method for refining sulfidic copper concentrate includes feeding sulfidic copper concentrate and oxygen-bearing reaction gas and slag forming material into a reaction shaft of a suspension smelting furnace, collecting slag and blister copper in a settler of the suspension smelting furnace to form a blister layer containing blister copper and a slag layer, and discharging slag and blister copper separately from the settler of the suspension smelting furnace, so that slag is fed into an electric furnace. The method further includes feeding a part of the sulfidic copper concentrate into the electric furnace.
The flotation apparatus includes a flotation vessel and a cover for closing an upwards open opening of the flotation vessel, wherein the cover and the flotation vessel limits a vessel space for receiving fluid, and an agitating means having a rotatable axis extending through a first aperture in the cover. The rotatable shaft is rotatable supported at a bearing housing outside the vessel space. A connection arrangement surrounds the rotatable shaft between the bearing housing and the cover.
A system for treating water includes an electrochemical water treatment unit having a first self-supporting framework limiting a first inner space. An electrochemical reactor is arranged in the first inner space vertically below a first opening at a top side of the electrochemical water treatment unit. The system includes a maintenance unit having a second self-supporting framework limiting a second inner space. The maintenance unit includes a second opening in a bottom side. The maintenance unit is arranged above the electrochemical water treatment unit so that the first opening and the second opening are aligned. A hoist is moveably arranged along a rail structure at the top side of the maintenance unit.
A method of removing cations from water and a process arrangement for performing the method, wherein the method includes containing cations selected from a group consisting of Se, As, Sb, Cr, Mn, Mo, W, V, Te, P, Si including preparing an iron precipitate-containing sludge by electrochemical water treatment, wherein the water is led through an electrochemical water treatment unit, wherein electricity dissolves iron from an anode to the water thereby forming an iron precipitate-containing sludge to which cations to be removed are adsorbed/co-precipitated, adsorption and co-precipitation enhancing to provide a very high density sludge having an iron precipitate concentration of 50-400 g/l thereby further adsorbing cations contained in the water, and separating solids from the obtained sludge thereby producing treated water having a reduced cation content and solids comprising iron precipitate compounds and adsorbed/co-precipitated cation compounds.
A method and to an arrangement for recovery of precious metal. The method includes calculating a first electrical property of a slurry downstream of a retention screen in a first flow direction A either (i) based on a first difference between the first supplied current and the first received voltage, or (ii) based on a first difference between the first supplied voltage and the first received current, calculating a second electrical property of the slurry upstream of the retention screen either (i) based on a second difference between the second supplied current and the second received voltage, or (ii) based on a second difference between the second supplied voltage and the second received current, and calculating the adsorption particle content of the slurry upstream of the retention screen based on a difference between the first and the second electrical property.
C22B 3/24 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés physiques, p.ex. par filtration, par des moyens magnétiques par adsorption sur des substances solides, p.ex. par extraction avec des résines solides
35.
Filling shoe, a filling shoe arrangement having such a filling shoe, a filter medium assembly having such filling shoe arrangements, and a method for providing a filter medium with such a filling shoe
A filling shoe including a circular slurry opening extending between a filter plate side and a filter chamber side. A flange surrounds the slurry opening, and has an annular groove surrounding it and being arranged for receiving a filter medium. An outer edge of the body has a bevel towards the filter plate side on at least a part of the filling shoe. An outer edge of the flange is also provided with a bevel. Particularly, the filling shoe is formed as a single uniform piece of elastomer. A pin hole is provided so as to extend through the flange a position corresponding to the annular groove. A filling shoe arrangement, a filter medium assembly and a method for providing a filter medium with a filling shoe are also disclosed.
B01D 25/00 - Filtres formés par l'assemblage de plusieurs éléments filtrants fixés ensemble ou parties de tels éléments
B01D 25/164 - Presses à chambre et à plaque, c. à d. dans lesquelles les bords latéraux des éléments filtrants sont calés entre les deux plaques filtrantes successives
B01D 25/176 - Fixation de l'élément filtrant aux plaques du filtre-presse, p.ex. autour de l'orifice central d'alimentation des plaques
B01D 29/56 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif montés en série
Provided is a method of recovering gold, and optionally silver, from gold-bearing, and optionally silver-bearing, double refractory raw material, comprising the steps of (a) leaching the gold-bearing, and optionally silver-bearing, double refractory raw material in a chloride containing leaching solution to dissolve gold and to obtain a leach solution comprising gold, and optionally silver, in solution, whereby the redox of leaching solution in the chloride leaching step is above 550 mV vs. Ag/AgCl; and simultaneously contacting the leach solution comprising gold, and optionally silver, in solution with a re-sorptive material to obtain a gold-containing, and optionally silver-containing, re-sorptive material; and (b) recovering gold and optionally silver from the gold-containing, and optionally silver-containing, re-sorptive material.
C22B 11/02 - Obtention des métaux nobles par voie sèche
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/24 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés physiques, p.ex. par filtration, par des moyens magnétiques par adsorption sur des substances solides, p.ex. par extraction avec des résines solides
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
37.
Electrode module, electrochemical reactor, and water treatment apparatus
An electrode module including electrode plates spaced from one another by spacing means, a plurality of support members each extending through each electrode plate and at least one spacing means between two adjacent electrode plates for releasable securing of the electrode plates together, and each electrode plate includes a plate portion. Each electrode plate includes one supporting and connection lug portion configured to support each electrode plate at a first busbar or a second busbar in an electrochemical reactor for electrically connecting each electrode plate of the electrode module with a first busbar or a second busbar for supplying electrical current between one of the first busbar and the second busbar and each electrode plate of the electrode module.
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C25B 11/02 - PROCÉDÉS ÉLECTROLYTIQUES OU ÉLECTROPHORÉTIQUES POUR LA PRODUCTION DE COMPOSÉS ORGANIQUES OU MINÉRAUX, OU DE NON-MÉTAUX; APPAREILLAGES À CET EFFET Électrodes; Leur fabrication non prévue ailleurs caractérisées par la configuration ou la forme
C25B 9/20 - Assemblages comprenant plusieurs cellules du type filtre-presse
C25B 11/04 - PROCÉDÉS ÉLECTROLYTIQUES OU ÉLECTROPHORÉTIQUES POUR LA PRODUCTION DE COMPOSÉS ORGANIQUES OU MINÉRAUX, OU DE NON-MÉTAUX; APPAREILLAGES À CET EFFET Électrodes; Leur fabrication non prévue ailleurs caractérisées par le matériau
C25B 9/18 - Assemblages comprenant plusieurs cellules
38.
Method and an arrangement for controlling of a comminution process having a grinding circuit
An arrangement for controlling a comminution process having a grinding circuit, includes an imaging system measuring 3D reconstruction measurement data for three-dimensional reconstruction of incoming ore; a particle size analysis equipment measuring particle size data for calculation of the particle size characteristic value of outgoing ore; an ore characteristics data calculation block receiving a particle size distribution profile of incoming ore and a particle size characteristic value of the outgoing ore, the particle size distribution profile being calculated and/or reconstructed from the 3D reconstruction measurement data for three-dimensional reconstruction, and the particle size characteristic value being calculated based on the measured particle size data, the ore characteristics data calculation block calculating ore characteristics data based on the particle size distribution profile and the particle size characteristic value; and a control block controlling the grinding circuit based on the calculated ore characteristics data.
B02C 21/00 - Installations de désagrégation avec ou sans séchage des matériaux
B02C 23/10 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur situé dans le passage de décharge de la zone de broyage ou de désagrégation
B02C 23/14 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen de plusieurs séparateurs
39.
Method and apparatus for charging pallet cars of a traveling grate for the thermal treatment of bulk materials
A method for charging pallet cars of a traveling grate for the thermal treatment of bulk material includes in a first step a first layer is applied as a hearth layer on a grate surface of the pallet car. In at least one second step a second layer at the same time or successively is applied as a side layer on two opposed side walls of the pallet car and a third layer is applied as green pellet layer between the side layers and on the hearth layer. The pellets used for the grate and the side layer differ in terms of their diameter and size distribution.
A method for separating organic solvent(s) from an aqueous process stream including organic solvent(s), includes passing the aqueous stream including organic solvent(s) through a granular bed including glass granules, wherein at least 90% of said glass granules have a maximum particle diameter smaller than 1.0 mm.
B01D 17/00 - Séparation de liquides, non prévue ailleurs, p.ex. par diffusion thermique
B01D 39/06 - Substance inorganique, p.ex. fibres d'amiante, perles ou fibres de verre
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
B01D 24/10 - Filtres à substance filtrante non agglomérée, c. à d. à substance filtrante sans aucun liant entre les particules ou les fibres individuelles qui la composent avec le lit filtrant stationnaire pendant la filtration la substance filtrante étant retenue dans un récipient fermé
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
C25C 1/00 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions
C02F 1/40 - Dispositifs pour séparer ou enlever les substances grasses ou huileuses, ou les matières flottantes similaires
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c. à d. de la production, de la purification ou du traitement de métaux, p.ex. déchets de procédés électrolytiques
41.
Vacuum box, belt filter, methods for servicing a vacuum belt filter, method for liquid-solid separation of a slurry, and filter element
A vacuum belt filter including a belt with a plurality of vacuum boxes, filter means being arranged to the vacuum boxes, drive means for moving the belt, and a suction station for creating an underpressure to the vacuum boxes at the suction station. In order to enable liquid-solid separation at low energy costs and long service interval of the vacuum belt filter, the filter means is in the form of a capillary filter, each vacuum box being provided with such a filter and each vacuum box being provided with an outlet having a check valve enabling a fluid flow from the inside space of the vacuum box to the outside of the vacuum box for creating an underpressure in the vacuum box when the suction station is connected to the vacuum box.
B01D 33/00 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration
B01D 33/056 - Structure des bandes filtrantes ou des courroies de support, p.ex. dispositifs pour les centrer, les monter ou assurer leur étanchéité
B01D 33/15 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à surfaces filtrantes rotatives planes
42.
Mixing apparatus and arrangement for introducing a first liquid, a second liquid, and a third liquid into a process liquid flow which is flowing in a linear flow duct section
A mixing apparatus has a first liquid inlet conduit for a first liquid, a second liquid inlet conduit for a second liquid, a third liquid inlet conduit for a third liquid, and an outlet assembly for feeding a mixture of the first, second, and third liquid from the mixing apparatus. The outlet assembly includes a pair of first outlet openings arranged symmetrically with respect to a center plane of the outlet assembly, a second outlet opening arranged at a center plane, a pair of third outlet openings arranged symmetrically with respect to and along the center plane between the pair of identical first outlet openings and the second outlet opening.
A filter element for a filter apparatus includes at least one filter member and a frame member arranged to support the at least one filter member in such a manner that an internal cavity is formed. The filter member includes a permeable membrane layer which has a first filter surface for receiving a pressure and directed towards an internal cavity arranged in-side the filter element, and a second filter surface for receiving solid particles filtered from a feed. The filter member forms a capillary filter.
B01D 63/16 - Modules rotatifs, vibrants ou à mouvement alternatif
B01D 33/23 - Structure des disques ou des secteurs qui les composent
B01D 29/15 - Eléments filtrants avec des supports agencés pour la filtration à courant dirigé vers l'intérieur
B01D 29/11 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants avec des éléments filtrants en forme de sac, de cage, de tuyau, de tube, de manchon ou analogue
B01D 29/05 - Filtres à éléments filtrants stationnaires pendant la filtration, p.ex. filtres à aspiration ou à pression, non couverts par les groupes ; Leurs éléments filtrants avec des éléments filtrants plats avec des supports
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
A machine and a method for transporting a liner into a grinding mill body wherein the machine includes a housing for insertion through an opening of the grinding mill body. The housing has a first end, a second end and a conduit in communication with the first end and the second end, and a conveying device for conveying the liner along the conduit between the first and second ends.
A water treatment apparatus includes an electrochemical reactor including a shell structure and a support structure for supporting the shell structure on a base. The support structure includes at least one support element supporting the shell structure from the ledge. A head room portion includes, within the inner space of the shell structure, at least one shelf for receiving and supporting at least one lug portion of at least one electrode plate for suspending the electrode plate. The shelf being located, when in use, preferably directly above the ledge.
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/463 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par électrocoagulation
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
C02F 103/28 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement de plantes ou de parties de celles-ci provenant de l'industrie du papier ou de la cellulose
C02F 103/30 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie textile
C02F 103/32 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie alimentaire, p.ex. eaux résiduaires de brasseries
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c. à d. de la production, de la purification ou du traitement de métaux, p.ex. déchets de procédés électrolytiques
46.
Electrochemical reactor for electrochemically treating water, a water treatment apparatus and use of such said electrochemical reactor
An electrochemical reactor for electrochemically treating water, including a shell structure defining an inner space. The shell structure further includes an inlet portion having an inlet for conducting a water flow to the inner space, and a reactor chamber in flow connection with the inlet portion, and preferably with an outlet portion. The inlet is arranged such that the water flow to the inner space is directed away from the reactor chamber so as to cause the water flow to mix by forcing the water flow to change direction before entering the reactor chamber. A water treatment apparatus having such a reactor, and the use of such a reactor are also disclosed.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
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
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c. à d. de la production, de la purification ou du traitement de métaux, p.ex. déchets de procédés électrolytiques
C02F 103/28 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement de plantes ou de parties de celles-ci provenant de l'industrie du papier ou de la cellulose
C02F 103/30 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie textile
C02F 103/32 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie alimentaire, p.ex. eaux résiduaires de brasseries
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
A process of treating complex sulfide concentrate includes the steps of roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720° C. to obtain a calcine; smelting the calcine under inert or oxygen free atmosphere in a smelting furnace to obtain a matte, and optionally granulating the matte to obtain a granulated matte.
A hydrofoil impeller includes a central hub connected to a shaft, and being in the form of a flat plate and being perpendicular to the central axis. The central hub has first bolt holes arranged to form a pattern, the number of groups of first bolt holes corresponding to a number of blades attached to the central hub. At least three blades extend radially outwardly from the central hub, and have a group of second bolt holes arranged in a corresponding pattern to the first bolt holes so that the group of second bolt holes can be aligned with the group of first bolt holes and bolts can be placed through the first and second bolt holes to form bolted joints. The pattern in which the first holes and second holes are arranged in each of the respective groups of holes has a form of a closed curved shape.
A process for recovery of gold from gold-containing raw materials includes obtaining gold-containing raw material having refractory gold-containing sulfidic minerals including a first type of refractory sulfidic mineral having high gold content and a second type of sulfidic mineral having low gold content; forming a mineral pulp including a first type of refractory sulfidic mineral particles having high gold content and second type of sulfidic mineral particles having low gold content by suspending ground gold-containing material in water and optionally further milling the material; conditioning the mineral pulp by addition of a surface modifying chemical to obtain a conditioned pulp; subjecting the conditioned pulp to a froth flotation process; recovering the non-floatable first type of refractory sulfidic mineral particles having high cold content as flotation tailings; pressure oxidizing (POX) the flotation tailings to obtain a discharge slurry comprising liberated gold; and recovering gold from the discharge slurry.
Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.
3F; providing an alkaline-sulfuric compound as an additive; and calcining a mixture of the raw material with the additive to obtain a product, including a citrate soluble phosphate compound.
Provided are a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these for feeding reaction gas and fine solids into a reaction shaft of a suspension smelting furnace, and a fine solids feeding apparatus for a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these. The fine solids feeding apparatus comprises gas outlets in a fine solids discharge channel upstream of a downstream outlet end of the fine solids discharge channel. The gas outlets comprise spiral path guiding members configured to facilitate gas to flow from the gas outlets in a spiral flow path around a center axis A of the fine solids discharge channel.
In a process for producing uranium and/or at least one rare earth element selected from the group consisting of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium and yttrium out of an ore, the ore is mixed with sulphuric acid with a concentration of at least 95 wt.-% to a mixture, wherein the mixture is granulated to pellets. The pellets are fed into at least one fluidized bed fluidized by a fluidizing gas for a thermal treatment at temperatures between 200 and 1000° C. The at least one fluidized bed is developed such that it at least partly surrounds a gas supply tube for a gas or a gas mixture fed into the reactor and the gas or gas mixture is used as a heat transfer medium.
The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner (1) of a suspension smelting furnace (2). The arrangement comprising a fluidization arrangement (3) for feeding fluidized fine-grained matter into a dosing bin (4), and a conveyor means (6) for feeding fluidized fine-grained matter from the dosing bin (4) to the concentrate or matte burner (1) of the suspension smelting furnace (2), and a loss-in-weight controller (5) between the dosing bin (4) and the conveyor means (6). The arrangement comprises an impact cone (8) arranged below a filling valve (7) between the fluidization arrangement (3) and the dosing bin (4) for distributing fluidized fine-grained matter flowing from the fluidization arrangement (3) within the dosing bin (4).
B65G 37/00 - Combinaisons de transporteurs mécaniques de même type ou de types différents sauf en ce qui concerne leur application dans des machines particulières ou leur emploi dans des procédés particuliers de fabrication
B65G 43/08 - Dispositifs de commande actionnés par l'alimentation, le déplacement ou le déchargement des objets ou matériaux
F27D 3/00 - Chargement; Déchargement; Manutention des charges
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27D 21/00 - Aménagement des dispositifs de surveillance; Aménagement des dispositifs de sécurité
3 and water, wherein the gas mixture is cooled by means of a first heat exchanger carrying a coolant. The temperature of the coolant lies above the dew point of the gas or gas mixture.
F28F 27/02 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur pour commander la répartition des sources de potentiel calorifique entre des canaux différents
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en général; Appareils échangeurs de chaleur de régénération non couverts par les groupes ou
56.
Method and carrier for transporting reductant such as coke into a metallurgical furnace and production method of the carrier
Provided is a method for transporting reductant such as coke into a metallurgical furnace containing a bottom layer containing molten metal and a top layer on top of the bottom layer containing molten metal. The method comprises a first providing step for providing reductant, a second providing step for providing metal, a forming step for forming carriers containing reductant and metal of reductant provided in the first providing step and metal provided in the second providing step, and a feeding step for feeding carriers formed in the forming step into the metallurgical furnace. Also provided is a carrier and a production method for producing carriers.
A flotation plant includes a tank module which includes a self-supporting framework having an inner space. The tank module includes at least one flotation tank. The flotation tank is disposed in the inner space of the self-supporting framework. The tank module is a self-supporting unit capable of being transferable and hoistable as an integral entity. The flotation plant includes at least two drive units for the rotation of drive shafts, each drive shaft being connected to a rotor for mixing and/or forming bubbles in the flotation tank. An overflow receptacle is disposed at the level of the upper part of the tank module for receiving an overflow from the flotation tanks. The flotation plant includes an overflow channel which is connected to the overflow receptacle for receiving and conducting the overflow from the overflow receptacle to a pumping means. The overflow channel is disposed outside the tank module.
A drive module which is a self-supporting structure being transferable and hoistable as an integral entity. The drive module includes a self-supporting framework having a shape of a rectangular parallelepiped. The self-supporting framework defines an inner space within the self-supporting framework. The drive module also includes at least two drive units. The drive units are supported to the self-supporting framework in the inner space of the self-supporting framework. The drive units are connectable to an external rotatable shaft for the rotation of the rotatable shaft located outside the drive module.
Provided herein is a process of fire refining blister copper, comprising the steps of (a) providing molten blister copper into an anode furnace; (b) when sulfur concentration of the molten blister copper provided in step (a) is above a first prescribed target value, oxidizing sulfur in the molten blister copper by blowing oxygen containing gas into the molten blister copper until the first prescribed target value has been reached; (c) subsequently lowering the sulfur and oxygen content in blister copper by blowing inert gas into the molten blister copper until a second prescribed target value has been reached, wherein the inert phase (c) is continued until the second prescribed target value of the oxygen concentration is below 4000 ppm, and the second prescribed target value of the sulfur concentration is below 500 ppm; (d) when certain condition(s) occur, subsequently reducing oxygen in the blister copper; and (e) optionally casting.
A detachable wear strip for an endless seal belt of a vacuum belt filter device is configured to be arranged in a first groove of a guide part between the endless seal belt and the guide part, wherein the endless seal belt is configured to run in the first groove in contact with a low pressure side of an endless moving filter belt of the vacuum belt filter device, wherein the guide part being arranged between a vacuum box of a vacuum arrangement and the low pressure side, and wherein by the vacuum arrangement being configured to produce a suction at a low pressure side of the endless moving filter belt at a working zone of the vacuum belt filter device.
B01D 33/04 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à bandes filtrantes ou analogues supportées par des cylindres imperméables pour la filtration
B01D 33/056 - Structure des bandes filtrantes ou des courroies de support, p.ex. dispositifs pour les centrer, les monter ou assurer leur étanchéité
61.
Method for constructing a vacuum belt filter device and vacuum belt filter device
A vacuum belt filter device includes an endless moving filter belt, a vacuum arrangement having a vacuum box having suction openings, and a guide part on opposite sides of the suction openings. Each guide part is arranged between the vacuum box and the endless moving filter belt. Each guide part has a first groove, and an endless seal belt configured to run in the first groove in contact with the low pressure side. A detachable wear strip is arranged in the first groove of each guide part between the endless seal belt and the guide part.
B01D 33/056 - Structure des bandes filtrantes ou des courroies de support, p.ex. dispositifs pour les centrer, les monter ou assurer leur étanchéité
B01D 33/04 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à bandes filtrantes ou analogues supportées par des cylindres imperméables pour la filtration
B65G 15/60 - Dispositions pour soutenir ou guider les courroies, p.ex. à l'aide de jets de fluide
Provided is a method for melting copper scrap and/or refining blister copper, comprising the steps of: (a) charging of copper scrap into an empty anode furnace and melting the copper scrap; (b) charging molten blister copper into the anode furnace; (c) optionally charging more copper scrap into the anode furnace and melting the copper scrap; (d) optionally repeating steps (b) and/or (c) one or more times until the anode furnace is full and a desired amount of copper scrap has been charged and melted until a final copper batch is obtained; and (e) refining the final copper batch to obtain anode copper.
C22B 9/05 - Affinage par traitement avec des gaz, p.ex. par décrassage par un gaz
C22B 15/04 - Obtention du cuivre dans des fours à réverbère
C21C 5/46 - Caractéristiques de construction des convertisseurs - Parties constitutives ou accessoires
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c. à d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p.ex. avec des conduits disposés parallèlement ou se croisant
F23D 14/32 - Brûleurs pour la combustion d'un gaz, p.ex. d'un gaz stocké sous pression à l'état liquide utilisant un mélange de combustible gazeux et d'oxygène pur ou d'air enrichi d'oxygène
F23D 14/56 - Buses pour étaler la flamme sur une surface, p.ex. pour le décapage de matériaux solides, le durcissement de surface ou le chauffage de pièces à travailler
63.
Treatment of degraded oxime metal extractants in process organic solutions
The invention relates to a method for regenerating the extractive potential of an organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction. The method is two-stage, in which a solid hydroxylamine is used in the reaction stage, and the removal of the undesirable compounds generated in the reaction occurs in the second stage by adsorption purification. The method of the invention is suitable for treatment of degraded oxime metal extractants in various process organic solutions both in aldehyde and ketoxime extractant solutions. The method can also be used to treat a mixture of degraded oxime extractants.
C22B 3/24 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés physiques, p.ex. par filtration, par des moyens magnétiques par adsorption sur des substances solides, p.ex. par extraction avec des résines solides
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
C22B 3/12 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques alcalines
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
B01J 20/06 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe
B01F 17/00 - Utilisation de substances comme agents émulsifiants, humidifiants, dispersants ou générateurs de mousse
B01F 13/10 - Installations pour effectuer des mélanges comprenant des combinaisons de mélangeurs de types différents
B01F 15/02 - Mécanismes d'alimentation ou d'évacuation
B01D 15/02 - Procédés de séparation comportant le traitement de liquides par des adsorbants ou des absorbants solides; Appareillages pour ces procédés par des adsorbants en mouvement
C07C 249/08 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes par réaction d'hydroxylamines avec des composés carbonylés
superheat set), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.
A method of manufacturing a launder to be used in co-operation with a solvent extraction settler comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting launder element modules, each having exterior dimensions, strength and handling and securing means conforming to shipping container standards, transporting the launder element modules to the site of installation as normal freight by transport equipment, such as trucks, trailers and container ships, capable of handling and transporting shipping container standard compatible units, and assembling at the site of installation the launder element modules into a module group forming a complete launder. The launder comprises a launder module group consisting of self-supporting launder element modules, each having exterior dimensions, strength and handling and securing means conforming to shipping container standards to enable shipping container standard compatible transportability.
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
C22B 3/22 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés physiques, p.ex. par filtration, par des moyens magnétiques
66.
Mixing and delivery method arrangement and pump for supplying small particles suspended in a liquid to form slurry for delivery
A mixing arrangement, and pump for supplying small particles suspended in a liquid to form slurry for delivery includes a container, a mixing and delivery pump having a first shaft, a rotor connected to the first shaft and arranged at an inner bottom of an inner space of the container, a first power device connected to the first shaft, and a stator having stator blades. The stator surrounds the first shaft. The arrangement includes a pump having an inlet, which is located in a stator space between two stator blades, and an outlet, and an outlet pipe having a second inlet opening connected to the outlet and a second outlet opening located outside the inner space.
3 not absorbed in the first absorption stage is supplied to a second absorption stage (secondary absorber) for the further absorption in concentrated sulfuric acid, and wherein the sulfuric acid is cooled after passing through the two absorption stages. The cooling of the sulfuric acid is effected in at least two heat exchangers connected in parallel, wherein one of the at least two heat exchangers is operated as partial evaporator and is cooled with boiler feed water/steam and the other one is cooled with cooling water and operated as pure acid cooler.
C01B 17/765 - Conversion de SO3 en plusieurs stades
B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
C01B 17/775 - Procédés par contact de phases liquides ou procédés par catalyse humide
The invention relates to a shell plate, to a method for making a shell plate and to a grinding mill for ore grinding. The shell plate is mountable to a shell of a grinding mill for grinding ore and includes a shell plate body having a first portion including a fixing surface for fixing the shell plate body to the shell, and a second portion having a wear surface facing toward an interior of the grinding mill. The first portion and the second portion form a continuous shell plate body, and the second portion includes polyurethane such that the wear surface is made of polyurethane.
B02C 17/00 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets
B02C 17/18 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets - Parties constitutives
B02C 17/04 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets à cuves non perforées
69.
Lifter bar, method for making a lifter bar, method for assembling a lifter bar and a grinding mill
A lifter bar, method for making a lifter bar, a method for assembling a lifter bar and a grinding mill for ore grinding is provided. The lifter bar includes a lifter bar body having an outer surface conforming to the outer surface of the lifter bar and a fixing element for connecting the lifter bar to the shell of the grinding mill. The lifter bar body further includes a first portion and a second portion forming a continuous lifter bar body. The fixing element is embedded in the first portion such that it forms part of the fixing surface of the lifter bar. The second portion is made of polyurethane and forms 35-85% of the volume of the lifter bar.
B02C 17/00 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets
B02C 17/18 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets - Parties constitutives
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c. à d. par dépôt de la matière à mouler et démoulage de l'objet formé; Appareils à cet effet
A hydrofoil impeller wherein the tip edge is straight and has a right angle with a radius extending from the central axis to the tip edge. In the central hub and in each of the blades the number of holes in each group of first and second holes is at least five. The pattern in which the holes are arranged in each of the respective groups of holes is elliptical having a center and a major axis which is substantially parallel to the radius and placed at a distance therefrom. The leading edge is, in the direction of rotation, behind an imaginary radial line intersecting the central axis of the shaft and the center of the ellipse, the leading edge being at an angle of 50°±2° in relation to the radial line. The area of the blade is divided into four planar portions by three straight bends.
A mixing apparatus for mixing particles in a liquid and its use are disclosed. The mixing apparatus comprises a tank having a bottom and a substantially vertical side wall, an agitation means comprising a rotation shaft located vertically and centrally in the tank, and an impeller arranged at a height above the bottom at the end of the rotation shaft and the impeller being a downward pumping axial or mixed flow impeller. The bottom is equipped with a corrugated formation comprising alternate consecutive ridges and valleys, the ridges and valleys extending radially in relation to a center of the bottom, whereby the valleys concentrate and channel the mixing power near to the bottom to direct the flow of the liquid and to increase the velocity of the flow near to the bottom.
Provided is a process for recovery of gold from gold-bearing raw materials comprising (a) leaching said gold-bearing raw material in a chloride containing leaching solution containing a total concentration of less than 120 g/L of halide ions, whereby the total concentration of chloride ions is less than 120 g/L of to dissolve gold and to obtain a leach solution comprising gold in solution; and simultaneously contacting the leach solution comprising gold in solution with a re-sorptive material to obtain a leach solution comprising gold-bearing re-sorptive material; and (b) recovering gold and optionally silver from the said gold-bearing re-sorptive material.
C22B 11/06 - Obtention des métaux nobles chloruration
C22B 3/24 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés physiques, p.ex. par filtration, par des moyens magnétiques par adsorption sur des substances solides, p.ex. par extraction avec des résines solides
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
The invention relates to a method for controlling suspension in a suspension smelting furnace. The method comprises feeding additionally to pulverous solid matter and additionally to reaction gas reducing agent into the suspension smelting furnace, wherein reducing agent is fed in the form of a concentrated stream of reducing agent through the suspension in the reaction shaft onto the surface of the melt to form a reducing zone containing reducing agent within the collection zone of the melt.
The present invention provides a method of separating precious metals from anode sludge obtained from copper electrolysis, comprising (a) leaching the anode sludge in an aqueous sulfuric acid solution to remove leachable chlorides and to obtain a first leaching residue depleted of chlorides; (b) pressure leaching the first leaching residue to dissolve Ag and Se and to obtain a first filtrate comprising Ag and Se and a second leaching residue depleted of Ag and Se; and (c) leaching the second leaching residue with an aqueous hydrochloric acid solution to dissolve Au and PGMs to obtain a second filtrate comprising Au and PGMs and a final leaching residue.
C22B 3/46 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques par substitution, p.ex. par cémentation
C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p.ex. des rognures, pour produire des métaux non ferreux ou leurs composés
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
76.
Enhanced method and arrangement for gas regulation in mineral flotation
A method for controlling gas circulation in a mineral flotation process in a system including one or more flotation cell unit(s) with an apparatus including a gas recirculation loop, a flushing system including an expulsion line for connecting pressure side of the gas recirculation loop to atmosphere and a suction line including a water lock, or means, other than a water lock, for restricting the gas flow and preventing back flow of unpurified gas to the atmosphere, for connecting suction side of the gas recirculation loop to the atmosphere.
Provided are a method and an arrangement for monitoring performance of a burner of a suspension smelting furnace. The burner is arranged at the top structure of a reaction shaft of the suspension smelting furnace. The burner has a solids feeding channel that has a solids outlet opening up into the reaction shaft, and a reaction gas channel comprising a reaction gas channel a that has a reaction gas outlet opening up into the reaction shaft. The arrangement comprises at least one imaging means for producing images representing the cross-section of the reaction gas channel, and a processing means for receiving images of the cross-section of the reaction gas channel from the imaging means.
F27D 21/02 - Dispositifs d'observation ou d'éclairage
F23N 5/08 - Systèmes de commande de la combustion utilisant des dispositifs sensibles aux variations thermiques ou à la dilatation thermique d'un agent utilisant des éléments sensibles à la lumière
F27D 21/00 - Aménagement des dispositifs de surveillance; Aménagement des dispositifs de sécurité
78.
Process and plant for the production of liquid acid
A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a second concentration of the liquid acid is reached; withdrawing the liquid acid from the sump of the gas purification, where in the gas purification sump is divided by a partition wall into a first and a second section. The concentration of the liquid acid collected in the first section is adjusted to the first concentration. The liquid acid with the first concentration from the first section is at least partially fed back into step and the liquid acid with the second concentration collected in the second section is at least partially withdrawn as product.
B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
B01D 53/18 - Unités d'absorption; Distributeurs de liquides
The present invention according provides a method of recovering silver from silver containing halide solutions, comprising the steps of: (a) providing an ion exchange column comprising a weak anion exchange resin; (b) introducing the silver containing halide solution to the ion exchange column to absorb silver in the weak anion exchange resin; (c) washing the loaded ion exchange resin with a first washing solution to rinse off absorbed zinc and optionally at least part of copper; (d) washing the loaded ion exchange resin with a second washing solution to rinse off remaining copper; and (e) optionally washing the loaded ion exchange resin with a third washing solution to rinse off absorbed lead; and (f) eluting the loaded ion exchange resin with an eluent to remove silver from the resin and to obtain a silver containing solution.
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
C22B 3/42 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction utilisant l'échange d'ions
The present invention provides a method of converting copper containing material to blister copper comprising: (a) providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material comprises at least 35 wt % copper of the total weight of the copper containing material; (b) reacting the copper containing material in a furnace with an oxygen containing gas, in the absence of flux, to effect oxidation of iron sulfide and copper sulfide, and controlling injection of the oxygen containing gas and the temperature so that the resulting converter slag is in a molten phase to obtain blister copper and converter slag.
The present invention relates to the field of mineral and metallurgical processes, to disintegrating in general and to disintegrating by tumbling mills, and more particularly to a method and arrangement for determining a degree of fullness of a large grinding mill drum, and to a large grinding mill drum. An arrangement for determining a degree of fullness of a grinding mill drum has a sensor arrangement attached to at least one lifting bar bolt of an at least one lifting bar of the grinding mill. The sensor arrangement includes at least one force transducer attached to the at least one lifting bar bolt. With the help of the measurement arrangement, more reliable measurement data can be provided for the determination of the degree of fullness of a grinding mill drum.
B02C 17/18 - Désagrégation au tonneau, c. à d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets - Parties constitutives
B02C 25/00 - Systèmes de commande spécialement adaptés au broyage ou à la désagrégation
82.
Method and arrangement for removing gaseous elementary mercury from a stream of gas
The invention relates to a method and to an arrangement for removing gaseous elementary mercury from a stream of gas and to an arrangement for carrying out the method. The arrangement comprises a first washing tower (2) for receiving a stream of gas, a second washing tower (6) for receiving a stream of once processed gas (5) from the first washing tower (2), and a third washing tower (9) for receiving a stream of twice processed gas (23) from the second washing tower (6) and configured for discharging a stream of cleaned gas (12).
B01D 53/78 - Procédés en phase liquide avec un contact gaz-liquide
B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
83.
Method for maintenance of used permanent cathode plates
A method for maintenance of used permanent cathode plates, said used cathode plate having scratches, crud formations and oversize grain boundaries on a surface of the cathode plate. The method comprises removing of scratches and accumulated crud from the surface of the cathode plate. The method further comprises removing substantially completely the oversize grain boundaries from the surface, and thereafter regenerating the grain boundaries of the surface of the cathode plate to an average grain boundary width of 1 to 3 μm and an average grain boundary depth less than 1 μm.
To produce manganese containing ferroalloy for steel production, an agglomeration mixture is produced which comprises chromite ore concentrate and manganese ore fines with a grain size smaller than 6-9 mm. The mixture is agglomerated to produce green agglomeration products, such as pellets or other types of agglomerates. The green agglomeration products are sintered in a steel belt sintering furnace to produce either sinter or sintered pellets. The sinter or sintered pellets are smelted in a submerged arc furnace to produce manganese and chromium containing ferroalloy. The ferroalloy produced by the method comprises 6.0-35 w-% manganese and 31-54 w-% chromium.
C22C 30/00 - Alliages contenant moins de 50% en poids de chaque constituant
C21C 5/52 - Fabrication de l'acier au four électrique
C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p.ex. des aciers, non couverts par les groupes
C22B 9/10 - Procédés généraux d'affinage ou de refusion des métaux; Appareils pour la refusion des métaux sous laitier électroconducteur ou à l'arc avec des agents d'affinage ou fondants; Emploi de substances pour ces procédés
C22C 38/38 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
85.
Method and wet scrubber for removing particles from gases
Provided are a method and to a wet scrubber for removing particles from gas. The wet scrubber includes a second vertical cylindrical vessel having a second upper end for receiving an accelerated stream of liquid- and particles-laden gas from a vertically oriented venturi channel and a second lower end for feeding the accelerated stream of liquid- and particles-laden gas to a swirl generator. The second vertical cylindrical vessel and the swirl generator are arranged in a vertical cylindrical separation space of a first vertical cylindrical vessel. The swirl generator is arranged above the liquid tank.
B01D 50/00 - Combinaisons de procédés ou de dispositifs pour la séparation de particules de gaz ou de vapeurs
B01D 45/16 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge produite par le mouvement hélicoïdal du courant gazeux
86.
Method and apparatus for online analysis by laser-induced spectroscopy
A presentation module is provided for presenting a fluid sample to a Laser-induced breakdown spectroscopy (LIBS) analysis. The presentation module comprises an inlet for admitting a fluid sample flow from a process flow, a measurement opening for co-operating with measurement optics, and a stabilizer surface facing towards the measurement opening. The stabilizer surface is adapted to form a stabilized sample flow along the stabilizer surface such that the depth and the outer surface of the sample flow are stabilized, and the surface fluctuation and depth variation of the stabilized sample slurry flow are reduced. As laser pulses are focused on the outer surface of the planar sample flow to transform at least a part of the sample into a state of a plasma, the accuracy and repeatability of the LIBS measurement are significantly improved due to the stabilized sample flow.
G01J 3/30 - Mesure de l'intensité des raies spectrales directement sur le spectre lui-même
G01N 21/71 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité thermiquement
G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
G01N 21/85 - Analyse des fluides ou solides granulés en mouvement
87.
Method and apparatus for sorting pieces of rock containing quartz vein from pieces of rock and computer program for a processing device
A method, apparatus and non-transitory computer readable medium for sorting out pieces of rock containing quartz vein includes receiving an electric signal representing an image of a piece of rock to be sorted; determining the number of pixels in the image having a predetermined color value that is indicative of presence of quartz; and in case the number of the pixels having said predetermined color value exceeds a predetermined threshold value, the method comprises as step for identifying from the image linear forms between the area of the pixels having said predetermined color value and the area of pixels representing the rest of the piece of rock, and in case linear forms is, the method comprises a step for generating a control signal for controlling a deviator device to perform a sorting action.
The present invention relates to a method of treating lead anode slime having high fluorine and arsenic content, in particular to a method comprising smelting of the lead anode slime and cleaning the produced off gases in a one or more wet gas cleaning stages.
A lance for top submerged lancing injection in a pyro-metallurgical operation, wherein the lance has at least two substantially concentric pipes, with an annular passage for oxygen-containing gas defined between an outermost one of the pipes and a next adjacent pipe and a further passage for fuel defined within an innermost one of the pipes; the outermost pipe has a lower part of its length, from a submergible lower outlet end of the lance, by which the outermost pipe extends beyond an outlet end of the or each other pipe to define between the outlet end of the outermost pipe and the outlet end of the or each other pipe a chamber with which the passage for oxygen-containing gas communicates; and the lance further includes a defined gas flow-modifying device that is disposed in a lower end section of the passage for oxygen-containing gas.
Provided are a method and an arrangement for feeding process gases from a suspension smelting furnace into a waste heat boiler. The arrangement comprises a feeding throat for feeding process gas. The feeding throat is connected to an uptake inner space at an exit. The feeding throat is connected to the waste heat boiler at an entrance. The feeding throat having a feeding channel comprising a channel inner roof. At least one of an uptake inner roof of the uptake of the suspension smelting furnace and the channel inner roof of the feeding channel of the feeding throat is provided with an angled and/or curved section that slopes at least partly downwardly in an angled and/or curved manner in the direction towards the entrance.
F27D 17/00 - Dispositions pour l'utilisation des chaleurs perdues; Dispositions pour l'utilisation ou pour l'élimination des gaz usés
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
91.
Method and plant for removing arsenic and/or antimony from flue dusts
A method for the treatment of flue dusts containing arsenic and/or antimony from pyrometallurgical methods, wherein a reducing agent is added to the flue dusts, the flue dusts are heated together with the reducing agent, and volatile components are separated from a slag. The reducing agent is a carbonaceous compound.
Provided are a method and apparatus for treating a feed stream for a flotation device comprising a mechanical agitator in a tank, the feed stream comprising solid particles. The method comprises generating microbubbles in a diluation water stream, mixing the diluation water stream with the feed stream to facilitate attachment of the microbubbles to the solid particles in the feed stream and generate bubbles for attachment to microbubble-attached solid particles, and fluidly connecting the feed stream to the flotation device. The apparatus comprises a feed stream conduit fluidly connected to the flotation device, a diluation water stream conduit fluidly connected to the feed stream conduit for conveying the diluation water stream to the feed stream, and a microbubble generator connected to the diluation water stream conduit for generating microbubbles in the fluid stream.
Provided is an arrangement for sealing a bellows cylinder in a pressure block of a pressure ring assembly. The bellows cylinder is located in a cavity formed in the pressure block and is operated by hydraulic fluid to give pressure against a contact shoe of a contact shoe ring arranged on the inside of the pressure ring assembly. The bellows cylinder is sealed to the cavity. A sealing bowl is arranged on the bellows on the inner side of the pressure block. The sealing bowl has an essentially flat surface towards the contact shoe and is provided with a side edge extending into the cavity. A circumferential groove containing a gasket ring is on the side wall of the cavity. A flexible sealing ring is arranged around the gasket ring to give tension and pressure on the gasket ring against the side edge of the sealing bowl.
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
F16J 15/56 - Autres joints pour tiges à mouvement alternatif
94.
Burner assembly and method for combustion of gaseous or liquid fuel
Burner assembly and method for combustion of gaseous of liquid fuel The invention relates to a burner assembly (1) and a method for combustion of gaseous or liquid fuel to heat an industrial furnace (9) having a combustion chamber (2), at least one main combustion air inlet (3) for the supply of preheat-ed combustion air (4) into the combustion chamber (2), a burner (5) with at least one fuel feed (7) and at least one air feed (8) for supply of fuel and primary air into a the combustion chamber (2), wherein the burner (5) is positioned adjacent to a combustion zone of the combustion chamber (2) such that the combustion air (4) flowing into the combustion chamber (2) through the main combustion air inlet (3) is passing the burner (5) in the combustion zone and is then deflected such that the flow of preheated combustion air and the smaller flows of fuel and primary air are flowing mainly in parallel from the burner (5) to the furnace (9), and a control unit for controlling the supply of fuel and maybe primary air into the combustion chamber (2). The control unit is adapted to supply the fuel and/or the primary air from the fuel and/or air feed (7, 8) into the combustion chamber (2) with an exit velocity higher than 150 m/s.
F23N 1/02 - Régulation de l'alimentation en combustible conjointement au réglage de l'amenée d'air
F23N 3/00 - Régulation de l'amenée d'air ou du tirage
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c. à d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p.ex. avec des conduits disposés parallèlement ou se croisant
F23C 7/06 - Amenées d'air ne traversant pas le brûleur pour le réchauffage de l'air entrant
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F23D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F23D 14/84 - Diffusion de la flamme ou autres moyens pour lui donner une forme particulière
95.
Clamping cylinder for an electrode slipping device
An electrode slipping device comprises an upper holder and a lower holder, both holders containing one or more clamping shoes and one or more clamping cylinders in co-operation with the clamping shoes. The clamping shoes are operable between a position where the electrode is clamped and a position where the electrode is unclamped. The clamping cylinder is connected to the electrode holder by first fastening means and to the clamping shoe by second fastening means such that the clamping cylinder can be released from engagement with the holder by unlocking both sets of fastening means.
H05B 7/10 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes
H05B 7/107 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes spécialement adaptés pour les électrodes à auto-cuisson
Provided is an arrangement for cooling channels in an electrode column assembly of an electric arc furnace, wherein the lower part of the electrode column assembly is provided with a contact shoe ring formed of a plurality of contact shoe elements, a pressure ring formed of a plurality of pressure blocks, and a heat shield located above the pressure ring and formed of a plurality of heat shield segments. The contact shoe elements and/or the pressure blocks are provided with channels for a cooling liquid to flow therein. The channels made in the material of the contact shoe elements and/or the pressure blocks extend obliquely downwards from the upper ends of said contact shoe elements and/or the pressure blocks near to the lower ends of the same. At least two of said oblique channels join together at their lower ends to form a continuous channel.
H05B 7/10 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes
H05B 7/12 - Dispositions pour refroidir, rendre étanche ou protéger les électrodes
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
F27B 3/08 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique à chauffage électrique, p.ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27D 11/08 - Chauffage par décharge électrique, p.ex. décharge d'arc
Provided is a pressure ring assembly for contact shoes in an electrode system of an electric arc furnace provided with at least one electrode column assembly. The electrode column assembly comprises a contact shoe ring formed of a plurality of contact shoe elements, a pressure ring formed of a plurality of pressure blocks, and a heat shield formed of a plurality of heat shield segments. An elongated groove is formed on both substantially vertical side edges of each pressure block, and an elongated lock bar is placed in the grooves of two adjacent pressure blocks to join said pressure blocks with each other. The form of the lock bar essentially matches to the form of the grooves of said two adjacent pressure blocks. Each lock bar is locked in place in the grooves by fastening bolts through holes in the pressure blocks.
H05B 7/10 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes
H05B 7/105 - Fixations, supports ou bornes avec des mâchoires comprenant plus de deux mâchoires également réparties sur la circonférence, p.ex. porte-électrode en forme d'anneau
F27B 3/08 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique à chauffage électrique, p.ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27D 11/08 - Chauffage par décharge électrique, p.ex. décharge d'arc
The invention relates to a method for recovering energy and water from pressure oxidation flash steam where first flash steam directly obtained from a flash vessel is contacted with a first recirculating condensate having a first low condensate temperature to condense at least part of the water vapor in the first dirty flash steam and simultaneously to heat the first recirculating condensate to obtain a first recirculating condensate having a first high condensate temperature and a first vent steam. The invention further relates to a pressure oxidation arrangement adapted for use in the method.
B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p.ex. extraction
B01D 5/00 - Condensation de vapeurs; Récupération de solvants volatils par condensation
B01J 3/04 - Récipients sous pression, p.ex. autoclaves
C02F 1/06 - Distillation par évaporation dite évaporation "flash"
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c. à d. de la production, de la purification ou du traitement de métaux, p.ex. déchets de procédés électrolytiques
A process for purifying red mud including reduction of the red mud to reduced material, and traversing the reduced material with an oxygen-containing gas in the presence of a catalyst suitable for iron oxidation.
C01F 7/06 - Préparation des aluminates de métaux alcalins; Oxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p.ex. par lixiviation de la bauxite selon le procédé Bayer
Provided is an electrode assembly for electrolytic processing in an electrolysis cell comprising an electrode blade comprising a metallic hanger bar portion, a first lug for supporting the metallic hanger bar portion on a first power supply bar, an insulating piece connecting the metallic hanger bar portion to the first lug. The electrode assembly also comprises an electrical switch unit controlling electrical current supply between the first lug and the metallic hanger bar based on a control signal transmitted to a terminal of the electrical switch unit, a control unit configured to transmit the control signal to the terminal of the electrical switch unit, and a power storage unit configured to supply power to the control unit, the power storage unit being charged from the first lug and the hanger bar when the electrical switch unit switches off electrical current supply between the first lug and the metallic hanger bar.
brevets
