EP1767273A1 - Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen - Google Patents

Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen Download PDF

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Publication number
EP1767273A1
EP1767273A1 EP05020997A EP05020997A EP1767273A1 EP 1767273 A1 EP1767273 A1 EP 1767273A1 EP 05020997 A EP05020997 A EP 05020997A EP 05020997 A EP05020997 A EP 05020997A EP 1767273 A1 EP1767273 A1 EP 1767273A1
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EP
European Patent Office
Prior art keywords
pulp
chamber
fluid
fraction
peripheral wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05020997A
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English (en)
French (fr)
Inventor
Pol Huart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GENIMIN
Original Assignee
Genimin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Genimin filed Critical Genimin
Priority to EP05020997A priority Critical patent/EP1767273A1/de
Priority to CA002623875A priority patent/CA2623875A1/fr
Priority to AT06804565T priority patent/ATE537904T1/de
Priority to EP06804565A priority patent/EP1931476B1/de
Priority to ZA200803661A priority patent/ZA200803661B/xx
Priority to CN200680035899.4A priority patent/CN101326010B/zh
Priority to EA200800934A priority patent/EA014356B1/ru
Priority to PCT/BE2006/000106 priority patent/WO2007036006A1/fr
Priority to AU2006297017A priority patent/AU2006297017B2/en
Priority to US12/088,417 priority patent/US8317033B2/en
Publication of EP1767273A1 publication Critical patent/EP1767273A1/de
Withdrawn legal-status Critical Current

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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.
  • 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 process which makes it possible to achieve, in a simple and economical manner, a rapid 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 jigging technique, said apparatus being of simple design, practical, economical and also with 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). 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 a dense fraction of the pulp and a light fraction of the pulp are withdrawn from the centrifugation chamber, the method being characterized in that, to achieve the centripetal pulsations, a fluid is injected into the pulp in a direction which has a tangential component to centrifugation.
  • 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 centripetal forces punctual, short durations, comparable to shocks, according to a defined frequency.
  • the 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 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 injection of the fluid is preferably operated continuously, with a substantially constant speed and / or a substantially constant flow rate. Continuous injection with a substantially constant injection rate is preferred.
  • the tangential injection of the fluid into the pulp generates therein local centripetal pulsations in front of the fluid injection zone.
  • 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.
  • the combination of 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 of the pulp and the 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 drawn tangentially to the aforementioned peripheral wall of said chamber, downstream of the withdrawal of the dense fraction.
  • the tangential velocity of introduction of the pulp in 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 variant embodiment of the invention thus cleaves the particulate matter in several fractions with different enrichment rates of useful substance.
  • the aforementioned additional racking 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. so that the centripetal pulsations have an acceleration substantially between 1 and 5 times the centrifugal acceleration aforesaid.
  • the invention also relates to an apparatus for implementing the method according to the invention, said apparatus comprising a centrifugation chamber, a device for admitting a pulp of the particulate material into the centrifugation chamber, a device for generating centripetal pulsations in the pulp in the centrifugation chamber, a device for drawing a centrifugation 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 includes 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 conduit may be connected to the supply device of said chamber to recycle the fraction withdrawn.
  • the conduit for injection fluid for generating the pulsations comprises a slot which is formed through the peripheral wall of the centrifuge chamber over a substantial length thereof.
  • 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 the recovery of fine grinding residues and the treatment of ores collected from alluvial and eluvial deposits or after grinding.
  • the method and the apparatus according to the invention find an application particular for the concentration of ores, diamonds 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 FIG. 1 comprises a centrifugation chamber 11 delimited by a vertical cylindrical lateral 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 duct 4 is oriented to introduce a fluid in the direction of the arrow X in the chamber 11. The function of the duct 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 are used 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 FIG. 1 is intended for implementing 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.
  • FIG. 2 schematically shows the combined action of the continuous centrifugal acceleration and the centripetal accelerations. point.
  • 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 by the 4.
  • the densest particles (9) migrate to the periphery of the chamber 11, while the light particles (10) migrate to 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 conduit 4 is to be oriented so that the flow of water entering the chamber 11 has a radial component.
  • Figures 3, 4, 5 and 6 show various arrangements of the conduit 4, which perform this technical function.
  • 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 in the cylindrical chamber 11 and the diameter thereof is uniform.
  • the conduit 4 penetrates obliquely in the chamber 11 and the latter narrows downstream of the duct 4.
  • the cylindrical chamber 11 contains a cylinder 12 with a perforated wall (FIG. 9), the axis of which coincides with that of the chamber 11.
  • the cylinder 12 is mounted on bearings 13, so as to be able to freely rotate 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 passing through 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.
  • Through the conduit 4 (FIG.
  • water 16 (FIG. 9) is injected continuously into 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 shown schematically in FIG. 10 differs from the apparatus of FIGS. 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 the admission of the pulp 15 and the duct 5 (not visible) for the removal of the light fraction 17. They form between them an annular cavity 23 into which the duct 4 (not shown, serving injection of water 16 for pulsations) and the conduit 6 (not shown, serving for the evacuation of the dense fraction 20).
  • the dense fraction 20 of the pulp is withdrawn from the annular cavity 23 and the light fraction 17 exceeds the threshold 18.
  • the apparatus of FIG. achieves a more precise cut between the light particles and the 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 During the operation of the apparatus, the pulp passes through the hydrocyclone 24 and migrates to the annular cavity 23.
  • the cyclone 24 serves to separate the fine particles from the particulate material, which are discharged through the axial stack 25.

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  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Centrifugal Separators (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Cyclones (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP05020997A 2005-09-27 2005-09-27 Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen Withdrawn EP1767273A1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP05020997A EP1767273A1 (de) 2005-09-27 2005-09-27 Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen
CA002623875A CA2623875A1 (fr) 2005-09-27 2006-09-27 Procede et appareil pour la concentration de matieres a l'etat de particules solides
AT06804565T ATE537904T1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand
EP06804565A EP1931476B1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand
ZA200803661A ZA200803661B (en) 2005-09-27 2006-09-27 Method and device for concentrating substances in solid particle state
CN200680035899.4A CN101326010B (zh) 2005-09-27 2006-09-27 汰选固体颗粒态物质的方法及设备
EA200800934A EA014356B1 (ru) 2005-09-27 2006-09-27 Способ и устройство для обогащения материалов, находящихся в виде твердых частиц
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
AU2006297017A AU2006297017B2 (en) 2005-09-27 2006-09-27 Method and device for concentrating substances in solid particle state
US12/088,417 US8317033B2 (en) 2005-09-27 2006-09-27 Method and device for concentrating substances in solid particle state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05020997A EP1767273A1 (de) 2005-09-27 2005-09-27 Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen

Publications (1)

Publication Number Publication Date
EP1767273A1 true EP1767273A1 (de) 2007-03-28

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EP05020997A Withdrawn EP1767273A1 (de) 2005-09-27 2005-09-27 Verfahren und Vorrichtung zur Konzentration von Feststoffteilchen
EP06804565A Not-in-force EP1931476B1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06804565A Not-in-force EP1931476B1 (de) 2005-09-27 2006-09-27 Verfahren und vorrichtung zur konzentration von stoffen in einem feststoffpartikelzustand

Country Status (9)

Country Link
US (1) US8317033B2 (de)
EP (2) EP1767273A1 (de)
CN (1) CN101326010B (de)
AT (1) ATE537904T1 (de)
AU (1) AU2006297017B2 (de)
CA (1) CA2623875A1 (de)
EA (1) EA014356B1 (de)
WO (1) WO2007036006A1 (de)
ZA (1) ZA200803661B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11737912B2 (en) 2018-01-08 2023-08-29 Vivonics, Inc. System and method for cooling the brain of a human subject

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071440A (en) * 1975-07-28 1978-01-31 Centralny Osrodek Projektowokonstrukcyjny Maszyn Gorniczych "Komag" Method and apparatus of stratification with tangential feed
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
US4574046A (en) * 1984-09-21 1986-03-04 Sprow Earnest A Centrifugal jig for ore beneficiation

Family Cites Families (22)

* 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
SE410276B (sv) * 1976-10-20 1979-10-08 Sala International Ab Dynamisk suspensionsanrikningsseparator
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
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
CN1662311B (zh) * 2002-04-17 2010-11-03 塞通诺米/St有限责任公司 分类颗粒的方法和设备
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071440A (en) * 1975-07-28 1978-01-31 Centralny Osrodek Projektowokonstrukcyjny Maszyn Gorniczych "Komag" Method and apparatus of stratification with tangential feed
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
US4574046A (en) * 1984-09-21 1986-03-04 Sprow Earnest A Centrifugal jig for ore beneficiation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11737912B2 (en) 2018-01-08 2023-08-29 Vivonics, Inc. System and method for cooling the brain of a human subject

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AU2006297017B2 (en) 2011-09-08
CA2623875A1 (fr) 2007-04-05
US20090014365A1 (en) 2009-01-15
WO2007036006A1 (fr) 2007-04-05
CN101326010B (zh) 2013-05-29
EA014356B1 (ru) 2010-10-29
EP1931476A1 (de) 2008-06-18
CN101326010A (zh) 2008-12-17
EA200800934A1 (ru) 2008-12-30
ZA200803661B (en) 2009-10-28
EP1931476B1 (de) 2011-12-21
US8317033B2 (en) 2012-11-27
ATE537904T1 (de) 2012-01-15

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