EP1931476B1 - Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand - Google Patents

Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand Download PDF

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Publication number
EP1931476B1
EP1931476B1 EP06804565A EP06804565A EP1931476B1 EP 1931476 B1 EP1931476 B1 EP 1931476B1 EP 06804565 A EP06804565 A EP 06804565A EP 06804565 A EP06804565 A EP 06804565A EP 1931476 B1 EP1931476 B1 EP 1931476B1
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chamber
slurry
fluid
pulp
centrifugation
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French (fr)
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EP1931476A1 (de
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Pol Huart
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Genimin
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Genimin
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
    • B03B5/22—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs using pulses generated by liquid injection

Definitions

  • the invention relates to the concentration of solid particulate matter comprising several organic and / or inorganic components of different densities.
  • the invention relates more particularly to an improved process for the densimetric concentration of ultrafine particles of such materials, according to the principle of setzage or jiggage in a centrifuge chamber, and an apparatus for carrying out this improved process.
  • Setzage or jiggage is a well-known technique for the concentration of solids comprising substances of different densities or densities [eg an ore released from its constituents (naturally for alluvial and eluvial deposits or after crushing), the remediation of 'polluted land of hunting sinkholes, or any other mixture of different materials'.
  • the jiggage uses several physical principles to allow the segregation of particles according to their density by avoiding the phenomenon of equivalence which occurs during the free fall of these particles where a light and fat particle has the same rate of sedimentation as a heavy and fine particle.
  • the techniques of setzage or jiggage are divided into two great families: the techniques of jiggage under the action of gravity and the techniques of jiggage by centrifugation.
  • Techniques using the action of gravity generally exploit two segregation engines, one of which exploits the first physical principle stated above and the other exploits the other two physical principles. But as soon as the particle size decreases, the surface area increases and the surface forces (drag) become predominant with respect to the volumetric forces (weights) that compete in the jiggage phenomenon.
  • One way to solve this problem is to centrifuge the material to increase the volumetric forces.
  • Centrifugal jigging techniques seldom exploit the first segregation engine, since the means usually used to subject the solid particles to short acceleration are generally unsatisfactory and impede the proper functioning of the jigg.
  • a centrifugal jigging apparatus is described in which exploits the two segregation engines.
  • a pulp of a particulate material is subjected to centrifugation in a cylindrical chamber whose peripheral wall comprises a grid covered with a filter bed and, during centrifugation, the filter bed at pulsed centripetal displacements which have the effect of subjecting the pulp in the chamber to centripetal point forces.
  • the chamber, its gate and the cavities are driven at high speed to centrifuge the pulp and subject the flexible wall of the cavities to displacement at a defined frequency, to project the water they contain through the grid and submit the bed filtering at centripetal pulsations.
  • the pulse pulsed to the pulp is induced by a mechanical effect, which has the disadvantageous result of limiting the frequency of pulsations due to mechanical inertia problems.
  • a very high frequency is necessary to cause the very short accelerations necessary for the segregation of very fine particles. These accelerations must be even more short as the particles are fine. In fact, the finer they are, the greater the specific surface area, the greater the drag. Under these conditions, the duration of the acceleration during which we can neglect the drag effect is very short. Therefore, the higher the frequency of successive accelerations, the lower the influence of the drag.
  • the device known from the document WO-90/00090 presents the additional disadvantage of being of complicated construction.
  • the realization of its sealing poses serious difficulties.
  • the need for a filter bed on the grid of the centrifuge is another difficulty, particularly the practical realization of a grid with ultrafine openings. The result is an expensive construction and difficult operation.
  • US-4,574,046 discloses a centrifuge apparatus for ore beneficiation by separating a heavy fraction from a lower load pulp.
  • This apparatus is provided with a rotor provided with a cylindrical grid rotating in a container filled with fluid so as to obtain a vertical jiggage bed.
  • the jiggage bed receives sequential pulses during its rotation as it passes a series of pulsating elements evenly spaced along the container, outside the filter. These pulses can be caused by compressed air injected in the form of fine bubbles, a pressurized fluid or a combination of both.
  • the pulp is introduced by the base of the jiggage grid and goes up along it, the fraction formed by the gangue, lighter, being evacuated from the top of the grid, while the fraction containing the ore, heavier, is evacuated through the grid. It is then collected around the base of the container.
  • US 4,071,440 describes a method for separating a mixture of granules of minerals of different specific gravity under the effect of selective sedimentation.
  • a cylindrical apparatus is used in which the mixture is introduced radially into a passage formed at the upper periphery of the wall of the apparatus.
  • the ore circulating in the peripheral passage is freed from its sludge and partially separated into different phases depending on the weight of the granules.
  • Pulsating effect of water is produced by cyclically injected compressed air from valves in a ring-shaped chamber.
  • the invention aims to overcome the disadvantages of the known centrifugal device described above.
  • the invention aims more particularly at providing a new and improved process for the concentration, by the centrifugal jiggage technique, of solid particulate matter comprising several organic and / or inorganic constituents of different densities.
  • the object of the invention is especially to provide a method which makes it possible to carry out, in a simple and economic, a fast and efficient concentration of ultrafine particles of such materials.
  • the invention also aims to provide an apparatus for the concentration of such materials by centrifugal jiggage technique, said apparatus being of simple design, practical, economical and also having high reliability and high operating efficiency.
  • particulate matter refers to a solid material in the form of particles of various sizes and shapes, comprising at least two organic and / or inorganic solid constituents.
  • the particulate material may for example comprise an ore, the constituents of which include minerals.
  • useful substance refers to a solid or inorganic component that is to be extracted in the concentrated state of the particulate material and the term “sterile substance” refers to a solid or mineral waste component, which is sought to separate from the useful substance (s).
  • pulp refers to an aqueous dispersion or suspension of the aforementioned particulate material in water or other suitable liquid (organic or inorganic).
  • suitable liquid organic or inorganic.
  • the selected liquid must have a density lower than that of the particulate matter.
  • the invention relates to a method for concentrating a particulate material, comprising at least two components of different densities, in which a pulp of said particulate matter is subjected to centrifugation and centripetal pulsations in a chamber. centrifugation and centrifugally removed from the chamber, dense fraction of the pulp and a light fraction of the pulp, the method being characterized in that, to achieve the centripetal pulses, a fluid is injected into the pulp, in a direction which has a component tangential to the centrifugation.
  • the fluid is injected into the pulp in the form of a localized jet, this jet having a component that is tangent to the direction of rotation of the pulp and the peripheral wall of the centrifuge chamber.
  • the injection can be strictly tangential to the peripheral wall of the centrifuge chamber. It is preferred that it be oblique, so as to also have a radial component.
  • the function of the centrifugation is to subject the particles of the particulate material to a centrifugal acceleration and thereby to centrifugal forces which will radially classify the particles of the particulate matter as a function of their respective masses.
  • the centrifugation can be carried out by any suitable means, for example using a rotary centrifuge. Centrifugation is performed in a centrifuge chamber. This is normally a room of revolution. It may for example be cylindrical, conical or frustoconical. It is not critical for the definition of the invention and will be explained later.
  • the speed of the centrifugation will condition the centrifugal acceleration of the pulp and hence the centrifugal forces acting on the particles of the particulate matter. It is not critical for the definition of the invention. All other things being equal, it will condition the productivity of the process and the precision of the cutoff between the light fraction and the dense fraction of the particulate matter.
  • the optimum speed of centrifugation will depend on various parameters, among which are the density of the or each useful substance of the particulate material, the densities of the sterile substances, the particle size distribution of the particulate material and the dimensions of the chamber used. for centrifugation. These parameters must be determined in each particular case by those skilled in the art, by means of routine tests in the laboratory or work in the design office.
  • centripetal pulsations have the function of subjecting the centrifuged pulp to specific centripetal forces, short durations, comparable to shocks, according to a defined frequency.
  • centripetal pulsations are obtained by injecting a fluid into the pulp subjected to centrifugation, this fluid injection having a component tangential to the centrifugation.
  • the fluid can invariably be a gas or a liquid. It must be substantially inert vis-à-vis the constituents of the pulp. In the case of a liquid, it can not normally be a solvent for the constituents of the particulate matter. It can be indifferently an organic liquid or an aqueous liquid. Especially liquids that are miscible with the liquid of the pulp are recommended. The same liquid as that of the pulp is advantageously used, the water being preferred.
  • the injection of the fluid is preferably operated continuously, with a substantially constant speed and / or a substantially constant flow rate. Injection is preferred continuous with a substantially constant injection speed.
  • the tangential injection of the fluid into the pulp generates therein local centripetal pulsations in front of the fluid injection zone.
  • the particles of particulate matter in the pulp are thus subjected to tangential and centripetal point accelerations, which are superimposed on the substantially constant centrifugal acceleration.
  • the frequency of the centripetal accelerations to which each particle of particulate material is subjected is a function of the speed of rotation of the pulp in the centrifuge chamber.
  • centrifugal acceleration and point centripetal accelerations provides a progressive stratification of particles of particulate matter in the pulp, as a function of their respective densities, the densest particles migrating to the periphery of the pulp vortex and the particles. less dense migrating in the opposite direction.
  • the quality of the stratification of the particles of particulate material in the pulp and, consequently, the efficiency of the concentration of the particulate matter will depend on various parameters among which are the dimensions of the centrifugation chamber, the flow rate of the pulp and its rate of introduction into the centrifuge chamber, as well as the rate and rate of injection of the fluid into the pulp.
  • the optimum values of these parameters will additionally depend on various factors, including the particulate matter treated, the respective densities of the useful substance and the sterile substances, the particle size distribution of the particulate material in the pulp and the concentration of the the pulp, as well as densities of the liquid pulp and injected fluid. These optimum values must therefore be determined in each particular case by those skilled in the art, by means of routine laboratory tests.
  • a dense fraction of the pulp and a light fraction are withdrawn.
  • the dense fraction is normally withdrawn at the periphery of the centrifuged pulp vortex, generally in a direction tangential to this vortex.
  • the centrifugation chamber is cylindrical, the pulp is introduced with a defined speed, tangentially to the peripheral wall of the chamber and the dense fraction is drawn tangentially to said wall.
  • tangentially is meant to specify that the direction of introduction of the pulp into the chamber and the direction of withdrawal of the dense fraction each comprise a component tangential to the wall of the chamber. These directions can therefore be strictly tangential or oblique. It is preferred that it be strictly tangential or almost tangential.
  • the withdrawal of the dense fraction is normally carried out downstream of the introduction of the pulp into the centrifugation chamber, the expressions "upstream” and “downstream” being defined with respect to the direction of rotation of the vortex of pulp in the centrifuge chamber.
  • the light fraction of the pulp can be withdrawn axially from the centrifugation chamber. It is preferred that it be withdrawn tangentially to the wall aforementioned device of said chamber, downstream of the withdrawal of the dense fraction.
  • the tangential speed of introduction of the pulp into the chamber will condition its speed of rotation in the chamber and, consequently, the centrifugal acceleration.
  • the cylindrical chamber may be horizontal, oblique or vertical. It is preferred that the chamber be substantially vertical.
  • the fluid used to produce the centripetal pulses is injected through the aforesaid peripheral wall of the centrifugation chamber, substantially over the entire length of the centrifugation chamber. this.
  • At least one additional withdrawal of an additional fraction of pulp is carried out, this additional withdrawal being carried out downstream of the withdrawal of the dense fraction and upstream of the withdrawal of the light fraction.
  • the useful substance content of the additional fraction is intermediate between the respective contents of said useful substance in the dense fraction, on the one hand, and in the light fraction, on the other hand.
  • This embodiment variant of the invention thus makes a cut of the particulate matter in several fractions with different enrichment levels useful substance.
  • the aforementioned additional withdrawal will be designated “intermediate withdrawal” and the corresponding additional fraction will be designated “intermediate fraction”.
  • the yield of the useful substance concentration can be substantially improved by recycling the intermediate fraction into the pulp which is introduced into the centrifugation chamber.
  • the dense fraction constitutes the useful fraction (concentrated as useful substance) or a by-product (enriched in sterile substances of the particulate matter), depending on whether the density of the useful substance is greater than or less than that of sterile substances.
  • the process according to the invention is especially adapted to the concentration of particulates of small particle size, especially in the state of particles with a diameter of less than 800 ⁇ m, generally between 1 and 500 ⁇ m, the diameter of a particle being, for example, definition, the diameter of a sphere of the same volume as the particle.
  • the centrifugation is regulated to subject the pulp to a centrifugal acceleration greater than 3000 m / s 2 and the injection of the fluid is regulated. for the centripetal pulsations to have an acceleration substantially between 1 and 5 times the centrifugal acceleration aforesaid.
  • the invention also relates to an apparatus for carrying out the method according to the invention, said apparatus comprising a centrifugation chamber, a device for admitting a pulp of the particulate matter into the centrifugation chamber, a device for generating centripetal pulsations in the pulp in the centrifugation chamber, a device for withdrawing a dense fraction of the pulp and a device for withdrawing a light fraction of the pulp;
  • the device for generating centripetal pulsations in the pulp comprises a conduit which opens into the aforesaid chamber, through a peripheral wall thereof, and which is in communication with an injection member of a fluid.
  • the peripheral wall of the centrifugation chamber is of revolution.
  • She can have any suitable profile. It may for example be a cylindrical wall, a conical wall or a frustoconical wall. Cylindrical walls are preferred.
  • the peripheral wall of revolution can be horizontal, vertical or oblique. It is preferred that the wall be substantially vertical.
  • the device for feeding the centrifugation chamber with the pulp comprises a duct that opens into the chamber through its peripheral wall, this duct being further in communication with a continuous injection member of the pulp.
  • the pulp introduction duct is arranged tangentially or obliquely with respect to the peripheral wall. It is preferred that it be substantially tangential with respect to this wall.
  • the conduit for the injection of the fluid for generating the pulsations opens obliquely or tangentially through the peripheral wall of the centrifuge chamber. It comprises a tangential component which preferably has the same meaning as the tangential component of the pulp introduction conduit.
  • the fluid injection member is advantageously designed so that the fluid injection is continuous and flow rate and / or substantially constant speed.
  • the device for withdrawing the dense fraction advantageously comprises a conduit which passes through the peripheral wall of the centrifugation chamber and which is oriented so as to have a tangential component in the same direction as the tangential component of the pulp introduction conduit.
  • the device for withdrawing the light fraction preferably comprises a conduit which passes through the peripheral wall of the centrifugation chamber, downstream of the withdrawal conduit of the dense fraction and which is oriented so as to have a tangential component in the same direction as the tangential component of the introduction conduit of the pulp.
  • the centrifugation chamber comprises at least one additional device for withdrawing a fraction of the pulp, said additional withdrawal device comprising a conduit which passes through the peripheral wall of the centrifugation chamber, between the withdrawal ducts of the dense fraction and the light fraction.
  • the additional withdrawal duct is advantageously similar to the withdrawal ducts of the dense and light fractions.
  • the additional withdrawal duct can be connected to the supply device of said chamber to recycle the fraction withdrawn.
  • the conduit for the injection of the fluid for generating the pulsations comprises a slot which is formed through the peripheral wall of the centrifugation chamber, over a substantial length of time. it.
  • the expression "over a substantial length of the wall of the chamber” means a length greater than half the total length of the chamber, generally at least 75% (preferably 80%) of the total length of the chamber. bedroom.
  • the total length of the chamber is the length of the chamber, from the pulp supply device to the withdrawal device of the light fraction.
  • the apparatus normally comprises a device for discharging the fluid used to generate centripetal pulsations in the pulp.
  • This evacuation device normally comprises a conduit which opens through the peripheral wall of the centrifugation chamber, downstream of the withdrawal device of the light fraction.
  • it may comprise a duct which passes axially through the downstream end of the centrifugation chamber.
  • the method and the apparatus according to the invention have various applications. They find in particular an application for the concentration of land or ores occurring naturally in the granular or powdery state, such as alluvial products.
  • the process and the apparatus according to the invention are especially adapted to the enrichment treatment of ultrafine ores, in particular to the recovery of fine grinding residues and the treatment of ores collected from alluvial and eluvial deposits or after grinding.
  • the process and the apparatus according to the invention find a particular application for the concentration of ores of gold, diamond and any other mineral of value, density differentiated with respect to the environment (cassiterite, wolframite, coltan, tourmaline, garnets, chrysoberyl, spinel, zircon, rhodonite, ruby, sapphire, ).
  • the method and the apparatus according to the invention also find an application for the treatment of polluted land, for example for the treatment of dredging sludge of rivers, polluted by heavy metals, the cleaning up of soil polluted by shot pellets, the remediation of industrial sites polluted by organic and / or inorganic solids.
  • the apparatus shown in figure 1 comprises a centrifuging chamber 11 delimited by a vertical cylindrical side wall 2.
  • Two ducts 3 open into the bottom of the chamber 11, tangentially to the cylindrical wall 2, at both ends of the same diameter.
  • the ducts 3 serve to introduce a pulp of particulate material into the chamber 11 to be rotated in the direction of the arrow X ( Figure 2 ).
  • the chamber 11 is in communication with a narrow vertical duct 4, which passes through the wall 2 over approximately its entire height and whose orientation is approximately tangential to it.
  • the conduit 4 is oriented to introduce a fluid in the direction of the arrow X in the chamber 11. The function of the conduit 4 will be explained later.
  • the chamber 11 is further in communication with a conduit 5 near its upper end and with a conduit 6 in an intermediate zone. These two ducts serve to draw fractions of the treated pulp into the chamber 11.
  • the ducts 3, 4, 5 and 6 are oriented so as to open into the chamber 11, tangentially with respect to its wall 2.
  • the apparatus of the figure 1 is intended for the implementation of the method according to the invention.
  • particulate matter in the form of ultrafine particles is dispersed in water to form a pulp.
  • the pulp is introduced into the ducts 3 with a uniform speed over time and controlled to subject the pulp to a rotary circulation in the chamber 11.
  • Water is also injected under pressure into the pulp layer in the chamber 11. via the conduit 4.
  • the injection of the water is continuous and at a substantially constant rate, which causes pulsations in the pulp, opposite the conduit 4. Under the action of these pulsations, the particles of the particulate matter are subjected to tangential acceleration tangential and centripetal when they pass in line with the duct 4, in the chamber 11.
  • the figure 2 schematically shows the combined action of continuous centrifugal acceleration and point centripetal accelerations.
  • the lines 7 schematize the circular flow lines of the pulp subjected to centrifugation in the chamber 11 and the lines 8 schematize the streamlines of the water introduced into the chamber 11 through the conduit 4.
  • the densest particles (9) migrate towards the periphery of the chamber 11, while the light particles (10) migrate towards the center of the chamber.
  • the dense particles are withdrawn with liquid from the pulp via the conduit 6 and the light particles are withdrawn with liquid from the pulp, via the conduit 5.
  • the fraction of pulp withdrawn from the chamber 11 through the conduit 6 is the useful fraction, enriched in useful substance, while the fraction withdrawn through the conduit 5 contains a majority of sterile substances.
  • the duct 4 In the apparatus of figures 1 and 2 , the duct 4 must be oriented so that the flow of water entering the chamber 11 has a radial component.
  • the duct 4 enters the chamber 11 tangentially to its peripheral wall 2.
  • the chamber widens downstream of the duct 4.
  • the duct 4 penetrates obliquely into the chamber 11 and the latter narrows downstream of the duct 4.
  • the cylindrical chamber 11 contains a cylinder 12 with a perforated wall ( figure 9 ), whose axis coincides with that of the chamber 11.
  • the cylinder 12 is mounted on bearings 13, so as to rotate freely in the chamber 11, to reduce the pressure losses in the rotating pulp.
  • the cylinder 12 may be driven by an electric motor (not shown).
  • the cylinder 12 is extended by a neck 14 which opens outwards, after crossing a corresponding neck 19 of the chamber 11.
  • the pulp 15 is introduced into the chamber 11 via the conduit 3, so that it undergoes centrifugation in said chamber 11.
  • the pulp is distributed in a layer 21 against the wall 2 of the chamber 11.
  • water is injected 16 ( figure 9 ) continuously in the pulp layer.
  • the water which has passed through the layer of pulp passes through the perforated wall of the cylinder 12 and is discharged from the apparatus via the neck 14.
  • the light fraction 17 of pulp is collected via the annular opening 5 situated downstream of the apparatus , the dense fraction is collected via the opening 6 and intermediate density fractions are withdrawn through openings 6 ', 6 "and 6"' located between the opening 6 and the opening 5.
  • the apparatus schematized at figure 10 differs from the device of figures 8 and 9 by the presence of two annular thresholds 18 and 22 on the wall 2, in the chamber 11.
  • the two thresholds 18 and 22 are arranged between the duct 3 (not visible) of admission of the pulp 15 and the duct 5 (not visible ) of evacuation of the light fraction 17. They form between them an annular cavity 23, in which opens the conduit 4 (not shown, serving for the injection of water 16 for pulsations) and the conduit 6 (not shown , used for the evacuation of the dense fraction 20).
  • the apparatus of the figure 10 makes a more precise cut between light particles and dense particles of the pulp.
  • the chamber 11 comprises a hydrocyclone 24 upstream of the threshold 22.
  • the inlet duct 3 of the pulp 15 opens into the hydrocyclone 24.
  • the pulp passes through the hydrocyclone 24 and migrates to the 23.
  • the cyclone 24 serves to separate the fine particles from the particulate matter, which are discharged through the axial chimney 25.

Claims (17)

  1. Verfahren zur Konzentration eines bestimmten Materials, umfassend mindestens zwei Bestandteile mit verschiedenen Raummassen, wobei eine Pulpe des besonderen Materials einer Zentrifugierung und zentripetalen Schwingungen in einer Zentrifugierkammer (11) unterzogen wird und von der Zentrifugierkammer eine dichte Fraktion (20) der Pulpe und eine leichte Fraktion (17) der Pulpe abgezapft wird, dadurch gekennzeichnet dass, um die zentripetalen Schwingungen durchzuführen, ein Fluid (16) in die Pulpe in eine Richtung injiziert wird, die eine tangentiale Komponente der Zentrifugierung darstellt, wobei die Pulpe in eine Kammer (11), tangential zur peripheren Wand (2) der Kammer, eingeführt (15) wird, wobei die dichte Fraktion tangential zur Wand abgezapft wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Fluid (16) auf im Wesentlichen ununterbrochene Weise in die Pulpe injiziert wird.
  3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass mindestens eine zusätzliche Abzapfung der Pulpe, der Abzapfung der dichten Fraktion (20) nachgelagert und der Abzapfung der leichten Fraktion (19) vorgelagert, durchgeführt wird.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Fluid (16) über die oben genannte periphere Wand (2), im Wesentlichen auf der gesamten Länge der Kammer (11), injiziert wird.
  5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die oben genannte Richtung der Injektion des Fluids (16) in die Pulpe eine radiale Komponente darstellt.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Fluid (16) eine Flüssigkeit der Pulpe (15) ist.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass das Fluid (16) Wasser umfasst.
  8. Verfahren nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Zentrifugierung geregelt wird, um die Pulpe einer zentrifugalen Beschleunigung von mehr als 3000 m/s2 zu unterziehen und der Durchsatz der ununterbrochenen Injektion des Fluids (16) geregelt wird, damit die zentripetalen Schwingungen eine Beschleunigung aufweisen, die im Wesentlichen zwischen 1 und 5 Mal der oben genannten zentrifugalen Beschleunigung liegt.
  9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das besondere Material im Zustand von Partikeln vorliegt, deren Durchmesser im Wesentlichen zwischen 1 und 500 µm liegt.
  10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das besondere Material ein Mineral umfasst.
  11. Gerät zur Konzentration eines bestimmten Materials, umfassend mindestens zwei Bestandteile mit verschiedenen Raummassen, wobei das Gerät eine Zentrifugierungskammer umfasst, eine Vorrichtung zur Aufnahme einer Pulpe des besonderen Materials in der Zentrifugierungskammer, eine Vorrichtung zur Erzeugung der zentripetalen Schwingungen in der Pulpe in der Zentrifugierungskammer, eine Vorrichtung zum Abzapfen einer dichten Fraktion der Pulpe und eine Vorrichtung zum Abzapfen einer leichten Fraktion der Pulpe, dadurch gekennzeichnet, dass die Vorrichtung zur Erzeugung der zentripetalen Schwingungen in der Pulpe eine Leitung (4) umfasst, die in die Kammer (11) mündet, tangential oder schräg im Verhältnis zu der peripheren Wand (2) der Zentrifugierungskammer (11) über eine periphere Wand (2) dieser, und die mit einem Organ zur Injektion eines Fluids in Verbindung steht.
  12. Gerät nach Anspruch 11, dadurch gekennzeichnet, dass das Organ zur Injektion des Fluids entworfen ist, damit die Injektion des Fluids ununterbrochen und mit einem Durchsatz und/oder einer Geschwindigkeit, die im Wesentlichen gleich bleibend sind, erfolgt.
  13. Gerät nach einem der Ansprüche 11 oder 12, dadurch gekennzeichnet, dass die Vorrichtung zur Aufnahme der Pulpe eine Leitung (3) umfasst, die in die oben genannte Kammer (11) mündet, tangential zur peripheren Wand (2), und die mit einem Organ zu ununterbrochenen Injektion der Pulpe in Verbindung steht.
  14. Gerät nach Anspruch 13, dadurch gekennzeichnet, dass sich die Leitung (4), die mit einem Organ zur Injektion des Fluids in Verbindung steht, im Wesentlichen über die gesamte Länge der peripheren Wand (2) der Kammer (11), der Leitung (3) zur Aufnahme der Pulpe nachgelagert, erstreckt.
  15. Gerät nach einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, dass die periphere Wand (82) der Zentrifugierungskammer (11) zylindrisch ist.
  16. Gerät nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, dass die periphere Wand (2) der Kammer (11) zwei ringförmige Schwellen (18, 22) zwischen der Leitung zur Aufnahme (3) der Pulpe (15) und der Leitung zum Abzapfen (5) der leichten Fraktion (17) umfasst, wobei die zwei Schwellen zwischen sich einen ringförmigen Hohlraum (23) definieren, in den jeweils die Leitung (4) zur Aufnahme des Fluids (16) und die Leitung zum Abzapfen (6) der dichten Fraktion (20) münden.
  17. Gerät nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, dass die Zentrifugierungskammer (11) ein Hydrozyklon umfasst, in das die Leitung zur Aufnahme (3) der Pulpe (15) mündet.
EP06804565A 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand Not-in-force EP1931476B1 (de)

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EP06804565A EP1931476B1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand

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EP05020997A EP1767273A1 (de) 2005-09-27 2005-09-27 Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen
EP06804565A EP1931476B1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand
PCT/BE2006/000106 WO2007036006A1 (fr) 2005-09-27 2006-09-27 Procédé et appareil pour la concentration de matières à l'état de particules solides

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EP1931476A1 EP1931476A1 (de) 2008-06-18
EP1931476B1 true EP1931476B1 (de) 2011-12-21

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AT (1) ATE537904T1 (de)
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CA (1) CA2623875A1 (de)
EA (1) EA014356B1 (de)
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KR101342150B1 (ko) 2012-01-05 2013-12-13 국립대학법인 울산과학기술대학교 산학협력단 공기 중의 입자 분리기
US9826913B2 (en) * 2013-07-11 2017-11-28 Vivonics, Inc. Non-invasive intracranial pressure monitoring system and method thereof
EP3737344A4 (de) 2018-01-08 2021-10-13 Vivonics, Inc. System und verfahren zur kühlung des gehirns eines menschen

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557956A (en) * 1970-01-28 1971-01-26 Bergstrom Paper Co Method for de-inking and removal of certain contaminants from reclaimed paper stock
GB1516135A (en) * 1975-05-23 1978-06-28 Cross D Mineral jigs
PL113266B1 (en) * 1975-07-28 1980-11-29 Centralny Osrodek Projektowo Method of separating the mixture of mineral particles contained in a watery medium and setting unit for separating the mixture of mineral particles
SE410276B (sv) * 1976-10-20 1979-10-08 Sala International Ab Dynamisk suspensionsanrikningsseparator
US4279741A (en) * 1979-05-07 1981-07-21 Intercontinental Development Corporation Method and apparatus for centrifugally separating a heavy fraction from a light weight fraction within a pulp material
US4341352A (en) * 1979-08-06 1982-07-27 Liller Delbert I Method of coal washing at low speed pumping
US4399027A (en) * 1979-11-15 1983-08-16 University Of Utah Research Foundation Flotation apparatus and method for achieving flotation in a centrifugal field
US4574046A (en) * 1984-09-21 1986-03-04 Sprow Earnest A Centrifugal jig for ore beneficiation
AR240262A1 (es) * 1985-01-25 1990-03-30 Lowan Management Pty Criba hidraulica centrifuga.
CN87104484A (zh) * 1987-05-18 1988-11-30 扎布热采煤联合公司扎布热-别尔舒维采硬煤煤矿 处理原矿石特别是硬煤的跳汰机
IN174814B (de) 1988-07-01 1995-03-18 Lowan Man Pty Ltd
US4997549A (en) * 1989-09-19 1991-03-05 Advanced Processing Technologies, Inc. Air-sparged hydrocyclone separator
US4998986A (en) * 1990-01-25 1991-03-12 Trans Mar, Inc. Centrifugal jig pulsing system
US5192423A (en) * 1992-01-06 1993-03-09 Hydro Processing & Mining Ltd. Apparatus and method for separation of wet particles
US5436384A (en) * 1993-10-18 1995-07-25 Westinghouse Elec. Corp. Process for the remediation of contaminated particulate material
US5616245A (en) * 1994-06-07 1997-04-01 Hjs Clem Ag High gravity separator
CA2142747C (en) * 1995-02-17 2000-05-16 Michael H. Kuryluk Mineral separator
US5938043A (en) * 1997-05-23 1999-08-17 Fine Gold Recovery Systems, Inc. Centrifugal jig
AUPO869197A0 (en) * 1997-08-20 1997-09-11 Lowan (Management) Pty Limited Hutch chamber for jig
AUPP554698A0 (en) * 1998-08-28 1998-09-17 University Of Queensland, The Cyclone separation apparatus
US6244446B1 (en) * 1999-10-08 2001-06-12 Richard L. Schmittel Method and apparatus for continuously separating a more dense fraction from a less dense fraction of a pulp material
BR0309321A (pt) * 2002-04-17 2005-03-29 Cytonome Inc Método e aparelho para selecionar partìculas
UA77830C2 (en) * 2002-08-19 2007-01-15 Dynamic separator
TWI376354B (en) * 2003-12-03 2012-11-11 Miike Tekkosho Kk An apparatus for smashing organic substance particles
US7479231B2 (en) * 2005-05-04 2009-01-20 Bernard Robert H Method and apparatus for separating fluids having different densities

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Publication number Publication date
AU2006297017A1 (en) 2007-04-05
AU2006297017B2 (en) 2011-09-08
EP1931476A1 (de) 2008-06-18
CN101326010A (zh) 2008-12-17
WO2007036006A1 (fr) 2007-04-05
CA2623875A1 (fr) 2007-04-05
ZA200803661B (en) 2009-10-28
EA014356B1 (ru) 2010-10-29
US8317033B2 (en) 2012-11-27
EP1767273A1 (de) 2007-03-28
ATE537904T1 (de) 2012-01-15
EA200800934A1 (ru) 2008-12-30
US20090014365A1 (en) 2009-01-15
CN101326010B (zh) 2013-05-29

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