US3804250A - Stratifier with discharge means for maintaining stratified layers - Google Patents

Stratifier with discharge means for maintaining stratified layers Download PDF

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Publication number
US3804250A
US3804250A US00137451A US13745171A US3804250A US 3804250 A US3804250 A US 3804250A US 00137451 A US00137451 A US 00137451A US 13745171 A US13745171 A US 13745171A US 3804250 A US3804250 A US 3804250A
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discharge
stock
gas
approach
improved apparatus
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G Dankesreiter
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Buehler AG
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Buehler AG
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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
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/005—Separating by pneumatic tables or by pneumatic jigs the currents being pulsating, e.g. pneumatic jigs; combination of continuous and pulsating currents

Definitions

  • Such g means may include suction means spaced above the layers or an extra pulsated flow of gas at the lower end [576] References cued of the bed to maintain the Stratified condition of mate- UNITED STATES PATENTS rial discharging therefrom. Treating of the materials in R2l,682 12/1940 Stump 209/475 the tratified bed is also disclosed. 2,358,293 9/1944 Kendall et al.. 209/466 1,801,195 4/1931 Fraser 209/474 16 Claims, 7 Drawing Figures 11 NT P50 51 42 1 -52 53 L3 00 5s 56 J 62 14 x 1 is 1. A 57 I 7 O 1% PATENTED 15 1974 3,804,250
  • the turbulent and fluid bed methods have been used for some time. It should be noted, in this connection, that the turbulent bed method for very intensive mixing of the materials to be brought in contact with one another, operates with very'large quantities of air, and the bed of bulk materials is present in a very loose form.
  • the discharge from such turbulent bed treatments generally is effected either through an overflowor through a specially controlled outflow through the bottom of the treatment device. Both discharge possibilities disturb the behavior of the turbulent bed insigniticantly, in that the very large quantity of air distributes itself largely homogeneously over the entire volume of material.
  • the invention is directed to a method for the dry sorting and separate removal of granular bulk material which flows,
  • removal of at least one stock fraction, sorted from the charged stock mixture is effected by a specially produced gas flow which acts thereon in the region of the discharge.
  • the special gas flow can effect an unvarying stratified deflection of the stratified sorted stock fractions into a discharge chute, and can serve to remove at least one stock fraction which has been sorted out. At least a portion of the pulsating gas flow can be removed as a plurality of uniformly distributed partial gas flows having increasing flow velocity away from the fluidized bed.
  • the apparatus comprises a stationary inclined perforated approach surface traversed by pulsating air, a stock mixture inlet over this surface and feeding the stock mixture thereto, a discharge contiguous to the approach surface, a gas distributing device arranged under the approach surface, and a gas collecting hood covering the approach surface and provided with an outlet line.
  • the outstanding feature fo the apparatus is that, in the zone of the discharge leading away from the plane of the approach surface downwardly, at least one gas flow element, with a gas flow adjusting organ means specially associated therewith, is provided and extends over the width of the approach surface and acts directly on at least one of the sorted granular stock fractions.
  • At least two inclined slide bottoms for the granular material, ar-' ranged in cascade, of which at least the one directly contiguous to the approach surface constitutes the gas flow element.
  • a discharge, extending steeply downwardly, may be divided by a partition into throughflow area, making it possible, by adjustable arrangement of the partitions, toform correspondingly variable areas.
  • a proportioning discharge apparatus may follow the .discharge, and the cascade-type slide bottoms may be permeable to gas.
  • an overflow edge corresponding to the width of the approach surface and preferably adjustable in height, may be provided. Also, between the two discharge chutes and after the overflow edge, a gas-permeable porous discharge control area may be arranged.
  • the gas flow element may be one or more suction nozzles extending across the width of the approach surface and spaced above the plane of the approach surface. In the direction of flow of the stock, several consecutive similar suction nozzles may be arranged at different spacings from the approach surface, and the spacings may be adjustable. As a further feature of the inventionJa plurality of suction nozzles may be substantially uniformly distributed over the area of the approach surface and in spaced relation to the plane thereof, these nozzles preferably being adjustable as to spacing from the approach surface.
  • the invention is further directed to a method in which, simultaneously with the dry sorting of the granular bulk materials and before separate removal thereof by the gas flow, there is effected a treatment of the bulk material which has atleast a partly varying effect on at least the physical properties thereof.
  • Anobject of the invention is to provide an improved method for the dry sorting and separate removal of fractions of granular bulk materials.
  • Another object of the invention is to provide an improved apparatus capable of carrying out the method.
  • a further object of the invention is to provide such a method and apparatus which are free of the disadvantages of prior art methods and apparatus for dry sorting and separate removal of fractions of granular bulk stock.
  • a housing 3 rests on fixed pedestals 1 and 2, and an inclined porous approach plate or bot tom 5 has a perforated air distributing plate 6 arranged therebeneath.
  • a similarly perforated but adjustable control plate 7 is operatively associated with distributing plate 6, and partition walls 8 extend between control plate 7 and approach bottom 5, dividing the area thereof and thus forming, between partitions 8,.plate 5 and distributing plate 6, individual gas distributing chambers 10.
  • the stock discharge 11 is arranged contiguous to I plate 5 in the flow direction of the stock, and comprises a first inclined gas-permeable slide bottom 15 having a gas distributing chamber 17 formed therebeneath and connected to a gas inlet 16.
  • a second inclined gaspermeable slide bottom 18 is arranged below slide bottom 15 in cascade arrangement, and has a gas distributing chamber 20 therebeneath connected to a gas supply line 19.
  • a discharge chute 21 extends steeply downwardly and a vibratory discharge apparatus 22 is I arranged beneath discharge chute 21, being connected thereto by a flexible connection hose 23.
  • a second discharge chute 26 is spaced from chute 1 in the flow direction and also extends steeply downwardly. Between first and-second discharge chutes 21 and 26, there is a gas-permeable porous discharge control area having an air or gas distributing chamber 32 arranged therebeneath. A perforated gas distributing plate 31 and a perforated gas flow control plate 33 are arranged in chamber 32.
  • a stock supply device 35 is arranged at the uppermost end of approach plate 5 and discharges above the approach plate, and an adjustable register 36 is positioned between stock supply device 35 and approach plate 5 and above the latter.
  • a gas collecting hood 40, of housing 3, extends over approach plate 5.
  • An outlet line 41 is positioned between stock supply device 35 and discharge 11, extending through hood 40, and a gas flow control register 42 is arranged in outlet line 41.
  • suction nozzles 45 and 46 are arranged in succession in the flow direction of the stock, and extend over the width of approach bottom or plate 5.
  • the respective inlets 47 and 48 of the suction nozzles are spaced different distances from the plane of approach bottom 5.
  • Suction lines 50 and 51 extend from the respective suction nozzles 45 and 46, and lead to a known suction unit which has not been shown. Lines 50 and 51 'have respective adjusting registers 52 and 53 arranged therein.
  • a motor 55 has acoupled transmission gear 56 which is connected, by an overdrive 57, with a fan 58'having two suction or inlet apertures 158', 158" selectively partially coverable by respective suction control registers 258.
  • a gas supply line 16 extends from the outlet of fan 58 under perforated gas distributing plate 6, and a gas stream interrupting register 60 is rotatable in conduit 16 and connected by an overdrive 59 with gear 56.
  • An adjustable register 61 is arranged between con-. duit 16 and gas distributing chamber 17, for adjusting the gas flow.
  • a gas supply line 19, having a throttle member 62 "interposed therein, extends from conduit 16 to distributing chambers 20 and 32.
  • a pulsating gas stream through approach bottom or plate 5 is main-, tained by fan 58, rotating register 60 in conduit 16, air distributing plate 6, adjusting plate 7 and gas distributing chambers 10.
  • the granular stock flowing in through stock admission 35 onto approach bottom or plate 5 is brought into a liquid-like state by the pulsating gas stream, and the granular contents 'simultaneously are stratified one above the other, sortedaccording to the rate of suspension.
  • a more or less voluminous bottom layer of bulk stock flows'into the discharge chute 21, from where it is drawn off, in a proportioned manner, through vibration discharge apparatus 22and supplied to a following processing stage.
  • An upper layer of the bulk stock flows over the overflow edge 39 onto the discharge regulating area 30 which, by the gas flow and the justment possibilities are provided, and are partly interdependent:
  • the apparatus has various advantages for the dry sorting and separate removing of granular stock. Consequently, over the entire flow distance of the stock, there is no unsteadiness in its fluidization. Thus, the sorting into superposed stratifications, once carried out, is no longer disturbed, so that any desired layer thickness can be removed neatly.
  • the apparatus permits large throughputs with only very small dimensions, and its adaptation to different sorting and separating problems is possible with simple means. The major part of the apparatusdoes not execute movements of any kind, so that maintenance and installation do not depend on any special conditions. Finally, separation occurs at low bulk stock velocity and low treatment gas velocity, as well as with very small relative movements, resulting in little wear of the apparatus and minimum abrasion of .the stock to'be treated.
  • each gas distributing chamber has arranged therein a respective adjustable regulating plate 7 above mean distributing plate 6.
  • a flow'adjusting plate 65 and an air distributing plate 66, both perforated, are positioned between gas conduit 16 and gas distributing chamber 17 under slide bottom which is contiguous to approach bottom or plate 5.
  • suction nozzle 46 along with suction line 51, is adjustable in height by nuts 71 threaded on stay bolts 72 embraced by springs 73, so that nuts 71 can be readily adjusted relative to hood 40 of housing 3.
  • An outflow aperture 13 is recessed in housing 3 adjacent plate or bottom 5,
  • damming plate 14 which is adjustable in height, is provided in advance of outflow aperture 13.
  • the apparatus of FIG. 2 Since it is not necessary, in all cases, to separate .into several fractions but merely to draw off a specific different type of stock from the mixture of granular material, the apparatus of FIG. 2 has the advantage that the single suction nozzle is adjustable, by very simple height adjusting means, to a specific thickness of the layer, that up to the discharge there exists a satisfactory fluidization and thus a satisfactory stratification, and that the material can be guided into the discharge chute in controllable discharge output. To adapt especially these discharge properties exactly to the particular given conditions, the area of slide bottom 18 is divided into several differently aeratable fields. By this design, and in conjunction with damming plate 14, small quantities of supernatant light fractions can still be removed through outflow aperture 13.
  • FIG. 3 A top plan view of the apparatus of FIG. 2, shown in FIG. 3, illustrates the two channels of the conduit 16 extending laterally past discharge chute 21 and leading under aeration chamber 69. Grip wheels 75 are provided to adjust flow adjusting registers 70. Two registers 77 and 78 in the transition zone from conduit 16 into the channels tothe aeration chamber 69 permit a first adjustment of the gas stream required in this zone.
  • FIG. 4 the most important elements are the same as in FIG. 1, namely the housing 3, conduit 16, air distributing plate 6, approach bottom or plate 5, stock admission 35, gas collecting hood 60 and suction nozzles 45, 46 which are adjustable in height relative to approach bottom or plate 5.
  • the apparatus also includes the discharge chute 21 connected by a flexible sleeve 23 to vibratory discharge apparatus 22.
  • the first difference between the embodiment of FIG. 4 and that of FIG. 1 is that, for the formation of gas distributing chambers 10 between air distributing plate 6 and approach plate5, separators 80 are provided with shoulders or noses near approach plate 5. Perforated gas stream limiting plates 82, with possibly different perforations, are placed on these noses or shoulders, in order to vary the fluidization air impinging thereon in good distribution through the air distributing plate 6 with respect to flow properties, and hence the fluidization capacity, of the stock layer flowing along approach plate 5 from stock inlet device 35 to discharge 11.
  • gas stream limiting plates 82 efi'ect due to the different respective perforations, different pressure gradients on the one hand and different flow quantites of the treatment gas on the other hand.
  • an outflow plate 85 which is adjustable with respect to its inclination.
  • the adjustment can be effected either along the adjustment slot 86 or by using one of the predetermined adjustment holes 87.
  • Gas tightness to the exterior is insured by the covering 88 which closes both adjusting slot 86 and the holes or apertures 87. Due to the fluidization angle of repose of the bulk stock, which is different from the actual angle of repose characteristic of the material, it is possible to control, using such an outflow plate 85, the flowing out of bulk stock and hence the stay time on approach plate 5. Together with vibratory discharge apparatus 22, the treatment influence can be varied within wide limits.
  • FIG. 5 the essential elements for the fluidization of the bulk stock, flowing from the zone of stock admission 35 through register 36 and over approach bottom plate into the zone of discharge 11, are largely the same as in the embodiments of the invention shown in FIGS. 1 and 4.
  • gas stream limiting plates 82 are provided within gas distributing chambers near approach plate 5, and there are differences in the discharge 11" and especially in the gas collecting hood.
  • respective flow plates 89 and 90 are provided near the respective slide bottoms and 18.
  • An inner distributing plate 91 is interposed between conduit 16 and gas distributing chamber 20.
  • Gas collecting hood 40 is replaced by a suction system 100.
  • Three nozzle plates 101, 102, and 103 cover approach bottom or plate 5 and discharge 11", and each nozzle plate is formed with nozzle channels 105 having openings 106 toward plate 5, the nozzle channels being essentially uniformly distributed.
  • the outlets of nozzle channels 105 discharge into suction lines 111, 112, and 113 each correlated with a respective nozzle plate 101, 102 and 103.
  • Respective flow adjusting registers 116, 117 and 118 are pivotally mounted in each of the suction lines 111, 112 and 113 before these suction lines terminate in a common collecting channel 120 leading to a suction system which has not been shown.
  • the spacing between each of the nozzle plates 101, 102 and 103 andv approach plate or bottom 5 is adjustable.
  • the stock to be sorted and separated passes from supply device 35 onto approach plate 5, whereupon, by the gas flow from gas conduit 16 into collecting channel 120, both the stratification of the stock into different stock fractions and the flowing of the superposed layers into discharge 11" is effected.
  • Nozzle channels 106 and nozzle plates 101, 102 and 103 make possible, along the entire flow path, the removal of certain stock fractions swimming on top or floating in suspension.
  • the individual gas flows throgh nozzles 105 into-the corresponding suction lines 111, 112 and 113 are adjusted by the respective flow adjusting registers 116, 117 and 118.
  • nozzle plates 101, 102 and 103 are adjustable, by zones, to a suitable spacing from approach plate 5.
  • the embodiment of the invention shown in FIG. 5 is advantageous inasmuch as fractions of stratified bulk stock are carried away continuously and not at individually pronounced points, so that stratification can be carried out more effectively. Also, the apparatus is very simple in operation and maintenance, as it contains no moving parts in the zone of the stock treatment.
  • Chute 21 is contiguous to slide bottoms 15 and 18 arranged in cascade, and under which perforated flow plates 89 and 90, re-
  • aeration gas is conducted laterally past adjusting register 78 and discharge chute 21 into gas distributing chamber 20.
  • Discharge troughs 122 and 123 slope toward outlets 124 and 125, respectively.
  • the drive of conveyor 121 is effected by an eccentric flywheel mass 126, suspended by springs 127 in a manner such that the entire discharge conveyor 121 can be vibrated.
  • adjusting slides 131 and 132 which are adjustable in height relative to the respective discharge troughs 122 and 123. Slides 131 and 132 are secured in adjusted position by respective adjusting screws 133 and 134threaded into discharge chute 21. Opposite the discharge end of chute 21, discharge conveyor 121 has slide areas which open into discharge troughs 122 and 123. Between adjusting slides 131 and 132 and slide areas 130, respective discharge slots 135 and 136 are left free, and the widths of these slots is determined by the adjustment of slides 131 and 132, respectively.
  • the stock to be separated, sorted into layers passes from approach layer 5 to the inclined slide bottoms 15 and 18 where a deflection of stratified stock into the discharge chute 21 occurs without alteration of the stratification so that, in chute 21, the layer boundaries continue to extend in the flow direction, i.e., substantially vertically in chute 21.
  • the widths of discharge slots 135 and 136 can be varied so that the outflow quantities from discharge chute 21 into the respective sh rsqt ash 122. 1 .3, are ar d- A sma width of discharge slot 135, for example, and a large width of discharge slot 136, cause a large quantity of stock to flow off thorugh discharge slot 136 and a small quantity through discharge slot 135.
  • apparatus for the dry sorting and separate removal of fractions of a granular bulk material including a stationary inclined perforated approach bottom traversed by a pulsating gas flow, a stock mixture inlet discharging onto the approach bottom from above the latter, a discharge immediately following the approach bottom, and a gas distributing device arranged beneath the approach bottom, the improvement comprising, in combination, said discharge extending downwardly away from said approach bottom; at least one gas flow conduit extending over the width of said approach bottom and acting directly on at least one of the sorted granular stock fractions; a respective gas flow adjusting means operatively associated with each gas flow conduit; at least two inclined slide bottoms in a transition zone from said approach bottom to said discharge, and arranged in cascade; at least that slide bottom directly adjacent said approach bottom being a gas-permeable porous gas flow element; and a gas distributing chamber disposed beneath said porous gas flow element.
  • the improved apparatus claimed in claim 2 including two discharge troughs extending transversely of the flow direction of the stock beneath said discharge chute; and means forming converging slide areas in the zone of the outlet of said discharge chute.
  • said last-named means comprises two respective adjusting slides, one for each slide area, the spacing of said slides from the associated slide area being adjustable.
  • the improved apparatus claimed in claim 3 including a partition extending throughout the width of said discharge chute in the direction of material flow thereto to subdivide the discharge chute into partial discharge chutes.
  • the improved apparatus claimed in claim 11, including means forming an overflow edge extending throughout the width of said approach bottom in said transition zone and downstream of said discharge chute; and a second discharge chute separated from said first discharge chute by said overflow edge.
  • the improved apparatus claimed in claim 7, including means forming a gas-permeable porous discharge regulating area between the said two discharge chutes and downstream of said flow edge; and a gas supply and distribution chamber operatively associated with said gas-permeable porous discharge regulating area for variable pressurization of said area.
  • said plurality of suction nozzles comprise adjustable flow section nozzles arranged in groups each covering a portion of the area of said approach bottom; and respective suction lines connecting each group of adjustable flow section nozzles to at least one suction conduit.
  • the improved apparatus claimed in claim 1 including a gas collecting hood covering the approach bottom and provided with an outlet line; said gas flow conduit being a suction conduit having a suction nozzle.
  • said suction nozzle has a nozzle aperture which is small relative to its width, and extending over said approach bottom; said suction nozzle being spaced from the plane of said approach bottom; and a suction line connected to said suction nozzle to connect the latter to a suction unit.
  • the improved apparatus claimed in claim 14, including means operable to adjust the spacing of said suction nozzles from said approach bottom.

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  • Combined Means For Separation Of Solids (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
US00137451A 1970-04-29 1971-04-26 Stratifier with discharge means for maintaining stratified layers Expired - Lifetime US3804250A (en)

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CH643070A CH522451A (de) 1970-04-29 1970-04-29 Verfahren und Vorrichtung zum Behandeln von körnigem Schüttgut

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US (1) US3804250A (fr)
BE (1) BE766472A (fr)
CH (1) CH522451A (fr)
DE (2) DE2121192A1 (fr)
ES (1) ES390625A1 (fr)
FR (1) FR2090910A5 (fr)
GB (1) GB1346617A (fr)
NL (1) NL7105617A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976563A (en) * 1975-03-07 1976-08-24 Bell Telephone Laboratories, Incorporated Dry reclamation of wire scrap
US4089422A (en) * 1975-10-14 1978-05-16 The Boeing Company Air classifier
US4190522A (en) * 1977-08-17 1980-02-26 J. M. Voith Gmbh Apparatus for purifying a suspension of fibrous material
US4894148A (en) * 1986-04-28 1990-01-16 Organ-Faser Technology B.V. Device for separating a heterogeneous mass of solid material into fractions
US5197398A (en) * 1991-04-16 1993-03-30 Electric Power Research Institute Separation of pyrite from coal in a fluidized bed
US5504972A (en) * 1992-05-12 1996-04-09 Matsui Manufacturing Co., Ltd. Method and apparatus for removing deposits adhering on materials
US20030098264A1 (en) * 1999-12-15 2003-05-29 Rune Ingels Method and a device for processing a solution, melt, suspension, emulsion ,slurry or solids into granules
US6688474B1 (en) * 1998-07-08 2004-02-10 Metallgesellschaft Aktiengesellschaft Process for removing relatively coarse-grained solids from a stationary fluidized bed
US20060254959A1 (en) * 2005-05-11 2006-11-16 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Air sifting apparatus having variable air supply
WO2009065176A1 (fr) * 2007-11-21 2009-05-28 Commonwealth Scientific And Industrial Research Organisation Séparation de matière particulaire
US20110215031A1 (en) * 2010-03-08 2011-09-08 Lars Vedsted Air separator
US20140221060A1 (en) * 2011-05-05 2014-08-07 Cnh France S.A. Method and System for Eliminating Residue From a Flow of Harvest

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
BR8802107A (pt) * 1988-05-02 1988-12-27 Anton Willibald Molterer Separador pneumatico de laminas de talos vegetais aperfeicoado
CN111686860B (zh) * 2020-05-12 2021-09-17 中国环境保护集团有限公司 一种垃圾焚烧用废渣收集装置及其使用方法
CN115283254B (zh) * 2022-07-29 2023-08-25 中触媒新材料股份有限公司 一种用于制氧吸附剂颗粒气流快速筛分活化系统及方法

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US21682A (en) * 1858-10-05 Joseph jobin
US1801195A (en) * 1927-10-31 1931-04-14 Hydrotator Company Process of and apparatus for separating mixed materials
US2007190A (en) * 1931-12-21 1935-07-09 Fraser Thomas Process of and apparatus for separating mixed materials
GB455219A (en) * 1935-04-11 1936-10-12 Westfalia Dinnendahl Groeppel Improvements in pneumatic apparatus for separating dust from coal and the like
US2147234A (en) * 1935-06-03 1939-02-14 Battelle Memorial Institute Launder apparatus for separating and sorting materials
US2161500A (en) * 1935-01-02 1939-06-06 Jeffrey Mfg Co Process and apparatus for treatment of mineral materials
US2160822A (en) * 1935-09-07 1939-06-06 Leroy E Bigelow Device for dry separation of precious metals from finely divided material
US2275849A (en) * 1936-08-24 1942-03-10 Fraser Thomas Apparatus for separating mixed materials
US2358293A (en) * 1940-06-20 1944-09-12 Adamson Stephens Mfg Co Coal cleaner
US2574493A (en) * 1949-04-18 1951-11-13 Mclean Lyle Gordon Classifier and separator

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Publication number Priority date Publication date Assignee Title
US21682A (en) * 1858-10-05 Joseph jobin
US1801195A (en) * 1927-10-31 1931-04-14 Hydrotator Company Process of and apparatus for separating mixed materials
US2007190A (en) * 1931-12-21 1935-07-09 Fraser Thomas Process of and apparatus for separating mixed materials
US2161500A (en) * 1935-01-02 1939-06-06 Jeffrey Mfg Co Process and apparatus for treatment of mineral materials
GB455219A (en) * 1935-04-11 1936-10-12 Westfalia Dinnendahl Groeppel Improvements in pneumatic apparatus for separating dust from coal and the like
US2147234A (en) * 1935-06-03 1939-02-14 Battelle Memorial Institute Launder apparatus for separating and sorting materials
US2160822A (en) * 1935-09-07 1939-06-06 Leroy E Bigelow Device for dry separation of precious metals from finely divided material
US2275849A (en) * 1936-08-24 1942-03-10 Fraser Thomas Apparatus for separating mixed materials
US2358293A (en) * 1940-06-20 1944-09-12 Adamson Stephens Mfg Co Coal cleaner
US2574493A (en) * 1949-04-18 1951-11-13 Mclean Lyle Gordon Classifier and separator

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976563A (en) * 1975-03-07 1976-08-24 Bell Telephone Laboratories, Incorporated Dry reclamation of wire scrap
US4089422A (en) * 1975-10-14 1978-05-16 The Boeing Company Air classifier
US4190522A (en) * 1977-08-17 1980-02-26 J. M. Voith Gmbh Apparatus for purifying a suspension of fibrous material
US4894148A (en) * 1986-04-28 1990-01-16 Organ-Faser Technology B.V. Device for separating a heterogeneous mass of solid material into fractions
US5197398A (en) * 1991-04-16 1993-03-30 Electric Power Research Institute Separation of pyrite from coal in a fluidized bed
US5504972A (en) * 1992-05-12 1996-04-09 Matsui Manufacturing Co., Ltd. Method and apparatus for removing deposits adhering on materials
US6688474B1 (en) * 1998-07-08 2004-02-10 Metallgesellschaft Aktiengesellschaft Process for removing relatively coarse-grained solids from a stationary fluidized bed
US6851558B2 (en) * 1999-12-15 2005-02-08 Yara International Asa Method and a device for processing a solution, melt, suspension, emulsion, slurry or solids into granules
US20030098264A1 (en) * 1999-12-15 2003-05-29 Rune Ingels Method and a device for processing a solution, melt, suspension, emulsion ,slurry or solids into granules
US20060254959A1 (en) * 2005-05-11 2006-11-16 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Air sifting apparatus having variable air supply
WO2009065176A1 (fr) * 2007-11-21 2009-05-28 Commonwealth Scientific And Industrial Research Organisation Séparation de matière particulaire
US20110215031A1 (en) * 2010-03-08 2011-09-08 Lars Vedsted Air separator
WO2011112312A3 (fr) * 2010-03-08 2012-03-29 Laitram, L.L.C. Séparateur à air
US8172088B2 (en) 2010-03-08 2012-05-08 Laitram, L.L.C. Air separator
US20140221060A1 (en) * 2011-05-05 2014-08-07 Cnh France S.A. Method and System for Eliminating Residue From a Flow of Harvest
US9579692B2 (en) * 2011-05-05 2017-02-28 Cnh Industrial America Llc System for eliminating residue from a flow of harvest

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Publication number Publication date
DE7116731U (de) 1976-04-29
FR2090910A5 (fr) 1972-01-14
CH522451A (de) 1972-06-30
DE2121192A1 (de) 1971-11-11
NL7105617A (fr) 1971-11-02
GB1346617A (en) 1974-02-13
BE766472A (fr) 1971-10-29
ES390625A1 (es) 1974-05-01

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