EP0154207B1 - Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle - Google Patents

Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle Download PDF

Info

Publication number
EP0154207B1
EP0154207B1 EP85101432A EP85101432A EP0154207B1 EP 0154207 B1 EP0154207 B1 EP 0154207B1 EP 85101432 A EP85101432 A EP 85101432A EP 85101432 A EP85101432 A EP 85101432A EP 0154207 B1 EP0154207 B1 EP 0154207B1
Authority
EP
European Patent Office
Prior art keywords
air
magnetic field
feed
alternating magnetic
air duct
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.)
Expired
Application number
EP85101432A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0154207A1 (de
Inventor
Jörg Dr.-Ing. Julius
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.)
Lyndex Recycling Systems Ltd
Original Assignee
Lindemann Maschinenfabrik GmbH
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 Lindemann Maschinenfabrik GmbH filed Critical Lindemann Maschinenfabrik GmbH
Priority to AT85101432T priority Critical patent/ATE34314T1/de
Publication of EP0154207A1 publication Critical patent/EP0154207A1/de
Application granted granted Critical
Publication of EP0154207B1 publication Critical patent/EP0154207B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
    • 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
    • B03C1/24—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields
    • B03C1/253—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields obtained by a linear motor

Definitions

  • the invention relates to a method for separating non-magnetic, electrically conductive metals from a solid mixture from their feed direction under the action of an air stream and an alternating magnetic field, the non-magnetic, electrically conductive metals being deflected from the conveying direction of the rest of the components of the mixture in the direction of light material discharge , and a device for carrying out this method with the help of an alternating magnetic field generator in an air duct with air supply at the lower end, with at least one air discharge at the other end and with a feed opening for the solid mixture opening laterally into the air duct.
  • Eddy current separation In the so-called eddy current separation, the feed material is passed between the poles of an alternating magnetic field generator, for example on a belt or in free fall. In this case, eddy currents are induced in the highly conductive components of the mixture to be separated, which build up their own magnetic fields which are opposed to the generating field and accordingly these components are accelerated by electromagnetic forces relative to the other components of the mixture. Eddy current separation can be used to separate non-ferromagnetic, highly electrically conductive materials, such as aluminum and copper, from scrap and waste, such as automobile shredder scrap, electronic scrap, glass waste and the like.
  • Wind sifting is particularly suitable for separating lighter parts from heavier parts.
  • the separation takes place according to the sinking speed in vertical or horizontal air flows.
  • the feed material has to be pre-classified very narrowly, if the grain shape is neglected, if the effort involved is to achieve appropriate separation results.
  • the air flow directed against the particle flow to be separated can be adjusted so that small (and of course large), specifically heavy particles, which often differ greatly in shape from the spherical shape, sink downwards, while small, specifically light particles decrease from the air flow be carried upwards.
  • Problems may be caused by a proportion of relatively large, specifically light parts, which in its material corresponds to the lightweight material, but which, according to its absolute weight or its spherical form factor, decreases together with the specifically heavy proportion. If the strength of the air flow were increased, the larger, specifically lighter parts could also be carried with the light goods, but at the same time a significant proportion of the specifically heavier material would also be carried away with the light goods with a corresponding grain size and grain shape.
  • the eddy current separation requires a minimum grain size when separating non-ferrous metals from a mixture of solids in a variable magnetic field, because continuous sorting with reasonable material and energy expenditure is only meaningful for material mixtures according to this procedure, whose lower grain size is approximately 15 to 20 mm in diameter.
  • DE-OS-2 509 638 proposes a device for eddy current separation in an air duct which only favors the loosening of the feed material.
  • the individual pieces of the mixture to be separated reach the air flow in free fall through the gap of an alternating magnetic field generator, the field of which migrates transversely to the direction of the fall.
  • a disadvantage of the known device is, above all, that the mixture pieces to be influenced electromagnetically in the sense of eddy current separation have to be moved laterally to the side of the falling particles and therefore collide with other parts and can be influenced accordingly.
  • the proportion of incorrect discharges, provided that the feed material flow is not largely isolated is quite high in both products due to hindrance or procrastination.
  • the air blown in should serve to loosen the sorted goods in the feed chute before reaching the viewing zone and not to separate substances of different densities.
  • a joint discharge of fine-grained, specifically lighter constituents together with the coarser, specifically lighter substances which are deflected by the alternating magnetic field generator are not taken into account.
  • the individual pieces have no defined position and can therefore be rotated by the alternating magnetic field in a direction in which the respective field can exert only a relatively small separation force (e.g. lateral acceleration) on the respective individual piece due to eddy current separation.
  • the invention has for its object to improve a method and an apparatus of the type mentioned in such a way that the electrically conductive particles influenced by the alternating magnetic field can be additionally accelerated in the desired manner essentially without being impeded by neighboring particles.
  • This object is achieved procedurally in that the solid mixture is supplied to the alternating magnetic field in a single layer at an angle to the air flow direction, and from this field both the large-grained light components consisting of non-magnetic, conductive material and the parts of such material that get into the heavy fraction due to the form factor in a wind sifting Feed level lifted and / or pushed up and transferred to the light material discharge while maintaining this direction and that, preferably by adding additional air, in the area of the material supply, the flow in the discharge zone for the light material is charged is notified
  • the above-mentioned object is achieved in that in the mouth area a device for air acceleration in the direction of flow and the alternating magnetic field generator with a direction of force oriented both in the direction of the air flow and transversely to a bottom edge of the material supply in the area of the task opening of the alternating magnetic field are arranged.
  • a sifter constructed in a zigzag form in which, in addition to the form of the sifter mentioned, linear motors are also used in wind power from the side, with the light material discharge apparently located to the right above the material inlet , however, there is no additional acceleration in the light material discharge which accelerates the flow in the discharge zone for the light material;
  • there is no reference to a single-layer feeder rather it must be concluded from the description in connection with the description that the goods are fed from the bunker in high layers or multi-layers, since the single-layer loading with a cellular wheel sluice, which is usually material from a filled shaft, can not be achieved.
  • the air acceleration according to the invention ensures that the air flow velocity in the flow direction behind the feed opening is greater than before the feed opening; Due to the alternating magnetic field provided in this area of the speed jump of the air flow in the air classifier duct, the polarity and direction of change which are suitable according to the invention means that electrically conductive particles can be raised from the area of lower air speed to the area of higher air speed up to a minimum grain size still to be determined by the eddy current separation . If the air classifier air flow is set to separate smaller (not covered by the eddy current separation), specifically lighter and specifically heavier particles, the eddy current separation combined with the additional or secondary air flow is an ideal means, even the relatively large, specifically light pieces of the mixture, e.g. . B.
  • the material is brought into the area of the air classifier and of the alternating magnetic field generator in a layer which is as single-layered as possible in contrast to the prior art.
  • the substances to be separated are sorted in the upward air flow 1 in a vertical manner arranged, designed as a wind sifter, zigzag-shaped air duct 2.
  • a vertical manner designed as a wind sifter, zigzag-shaped air duct 2.
  • differently shaped, vertical or horizontal air ducts can also be used.
  • the material to be separated is fed into the air duct 2, preferably via a cellular wheel sluice 3 as material feed, in the upper third of the air duct 2.
  • the associated feed opening 4 of the air duct 2 is optionally connected to the cellular wheel sluice 3 via a trough 5 or another conveying means.
  • the feed opening 4 is preferably provided in the upper third or, viewed in the direction of the air flow 1, in the last third of the air duct 2.
  • a bottom edge A is provided, which in its simplest design is provided by the opening of the channel 5 into the air channel 2 in the area at an angle to the longitudinal axis of the air channel 2 in this area Task opening 4 is formed.
  • the material to be separated via the feed opening 4 into the air duct 2 which can consist of specifically heavier particles 6 and specifically lighter particles 7 according to FIG. 2, falls in the air duct 2 and is sucked in via a main air supply 8 at the lower end of the duct 2 Air flow 1 sucked off via an air discharge 9 at the upper end of the duct.
  • a zigzag design of the air duct according to the detailed drawing according to FIG. 2 there is a highly turbulent air flow within the duct 2, which favors the desired separation, with so-called vortex rollers 10 and 11.
  • the upward main flow forms approximately accordingly in duct 2 arrows 12 and 13.
  • the air duct 2 according to FIGS. 1 and 2 has a secondary air supply 14 in the transition region B to the discharge zone 16, which is approximately at the level of the confluence (feed opening 4) of the material supply into the air duct 2, through which an additional air flow 15 is introduced into the duct 2 .
  • the additional air flow 15 is added to the air flow 1 sucked in via the main air supply 8, so that in the upper or second area, the discharge zone 16, of the air channel 2 adjoining the feed opening 4, a stronger air flow 13 is established than in the previous area 33 of the channel.
  • the secondary air supply 14 can - as shown - consist of a line; but it can also open into the discharge zone of channel 2 with several lines, even in a ring at several points.
  • the light material discharged upward in the air duct 2 is transported by the air flow 13 via a pipeline 17 into a cyclone 18 in which the solid parts are separated from the carrier air flow.
  • the solid particles separated in the cyclone 18 are expediently discharged via a rotary valve 19, while the cleaned air according to FIG. 3 is conducted to the suction side of a blower 21 via a pipeline 20 (see FIG. 3).
  • the air flow in the circuit can be directed back to air duct 2.
  • fresh air can be introduced into the circulating air circuit via a valve 22.
  • the pressure side of the blower 21 can be connected to the main air supply 8 of the air duct 2 via a pipe 23.
  • Partial air flows can be directed via a valve 24 for dust separation into a filter 25 and via a line 26 to the secondary air supply 14 of the air duct 2.
  • Valves 27 and 28, for example, are used to control the air quantities in the secondary air supply 14 and in the main air supply 8. While the light goods according to FIGS. 1 and 2 are transported with the air flow 13 to the cyclone 18, the heavier goods come against the air flow 12 to the channel floor 29 and is discharged there, for example, via a cellular wheel sluice 30 (FIG. 1).
  • the present device has, in addition to the secondary air supply 14, an alternating magnetic field generator 31 which, according to FIGS. 1 and 2, is arranged below the feed opening 4 directly adjacent to the bottom edge A.
  • the variable magnetic field of the alternating magnetic field generator 31 in the exemplary embodiment according to FIGS. 1 and 2 is preferably perpendicular to the feed material stream 32, i.e. aligned transversely to the bottom edge A.
  • alternating magnetic field generators can also be used, which are installed on the two side surfaces of the channel 2 in the area of the feed opening 4, the field of which migrates in the direction of the air flow 13 (see, for example, the exemplary embodiment according to FIGS. 4 and 5).
  • field generator 31 single or multi-phase controlled coil systems with mains frequency as well as those coils that are operated with voltages of higher frequency. Air coils or iron core coils can be used.
  • the separation process can be seen more precisely from the detailed drawing of the zigzag-shaped air duct 2 according to FIG. 2.
  • the strength of the air flow 13 after the secondary air supply 14 in the second channel area 16 is substantially higher than that of the air flow 12 in the channel area 33 in front of the feed opening 4.
  • the separation proceeds in such a way that the feed material via the rotary valve 3 and the Inlet nozzle 5 is passed into the zigzag-shaped air duct 2.
  • the bottom edge A in the invention ensures that the feed material is or can be brought into the area of the air classifier and of the alternating magnetic field generator in a layer which is as single-layered as possible.
  • the sorted material falls into the separation zone over the entire cross section of a vertical shaft.
  • a vertical feed is deliberately dispensed with and the material to be sorted is introduced laterally into the separation zone of the air duct, so that in the case of the embodiment according to FIGS. 1 and 2 it is constantly on a floor, namely the trough 5 up to the actual one Separation zone is introduced
  • the material particles are usually always on the floor with their largest area; this surface is then also exposed to the alternating magnetic field generated adjacent to the bottom edge A, which is known to achieve a maximum repelling effect in the direction transverse to the bottom edge A.
  • the air velocity in the first or lower channel region 33 of the air channel 2 lying in the flow direction in front of the feed opening 4 is set in such a way that small, specifically heavy particles sink downward and small, specifically light particles are carried upwards by the air flow and discharged to the light material.
  • the alternating magnetic field generator 31 is used in the light material.
  • the variable magnetic field 34 of this component eddy currents are induced in the larger, specifically lighter, electrically highly conductive pieces to be deflected.
  • the eddy currents are surrounded by a magnetic field which is directed towards the excitation field 34, as a result of which the (electrically conductive) larger, specifically lighter constituents 7 are discharged into the discharge or discharge zone 16 in the second or upper channel region which is subjected to higher air speeds.
  • the air speed in particular by the appropriately metered supply of air to the secondary air supply 14, the portions of the feed material deflected by means of the alternating magnetic field can be safely transported into the cyclone 18 connected downstream.
  • FIGS. 4 and 5 A second exemplary embodiment of the device for separating electrically highly conductive non-ferrous metals with a combined wind sifting and eddy current separation is explained with reference to FIGS. 4 and 5.
  • the separation takes place here in an air duct 35 which is vertical or inclined by up to 45 ° to the vertical with an air flow 36 flowing from bottom to top.
  • This passes through a main air supply 108 at the lower end of the air duct, which also has a cellular wheel sluice 130 for removing the heavy goods 3 through a pipe 117 to a cyclone, etc.
  • the air duct 35 like the air duct 2 according to FIGS.
  • a lateral feed opening 104 with a feed conveyor 105 and a rotary valve 103 and a secondary air supply 114, which is arranged so that there is a higher air speed above the feed opening 104 than in the lower part of the air duct 35.
  • Additional secondary air supply lines can be arranged above the supply line 114 in order to ensure that heavy parts are discharged more reliably.
  • the air duct 35 should preferably have a rectangular cross section.
  • a linear motor is preferably an alternating magnetic field generator 37.
  • a double stator design with opposite side surfaces of the air duct 35 arranged poles 38 and 39 is suitable (see the sectional view of FIG. 5).
  • the direction 40 of the traveling fields generated by the two linear motors of the double stator design is in the illustrated embodiment in the same direction as the air flow 36 in the channel 35.
  • the field change of the alternating magnetic field generator 37 thus always runs from bottom to top in the direction of arrow 40.
  • the linear motors are preferred in the present case multi-phase electrical supply, whereby voltages with mains frequency or higher frequency up to approx. 1000 Hz can be applied.
  • the coarser, specifically lighter portions of the feed material are raised with the help of an alternating magnetic field generator 37 into the area of higher air speed above the secondary air supply 14 and discharged to the light material with the stronger air flow.
  • the entire separation process proceeds similarly to that already described for the exemplary embodiment according to FIGS. 1 and 2.
  • the material tipping over the bottom edge A, or the individual particles initially only turns the surfaces of the alternating magnetic field generators to the unfavorable narrow side.
  • the individual particles are exposed to the air flow 36 in the air classifier 35, they turn, whereby a position is surely passed, in which the respectively larger surface of each particle will face one of the surfaces of the alternating magnetic field generator 37, at which instant it will receive the full eddy current magnetic pulse in the direction transverse to the bottom edge A of the feed.
  • the bottom of the feed 105 is also the possibility of designing the bottom of the feed 105 approximately V-shaped, in order thereby to predefine the supplied particles a more favorable position in relation to the alignment with the alternating magnetic field generator before reaching the channel 35.
  • the feed 105 does not necessarily have to run horizontally, as shown in FIG. 4, as long as a bottom edge is formed only in the region of its confluence with the channel 35.
  • the magnetic field generators 38, 39 do not necessarily have to be arranged in exactly opposite positions, as shown in FIG. 5, but could also be attached at the same height but offset from the plane of the drawing.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Electrostatic Separation (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
EP85101432A 1984-02-29 1985-02-11 Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle Expired EP0154207B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101432T ATE34314T1 (de) 1984-02-29 1985-02-11 Verfahren und vorrichtung zum abtrennen elektrisch leitfaehiger nichteisenmetalle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3407326A DE3407326C2 (de) 1984-02-29 1984-02-29 Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle
DE3407326 1984-02-29

Publications (2)

Publication Number Publication Date
EP0154207A1 EP0154207A1 (de) 1985-09-11
EP0154207B1 true EP0154207B1 (de) 1988-05-18

Family

ID=6229131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101432A Expired EP0154207B1 (de) 1984-02-29 1985-02-11 Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle

Country Status (6)

Country Link
US (2) US4668381A (enrdf_load_stackoverflow)
EP (1) EP0154207B1 (enrdf_load_stackoverflow)
JP (1) JPS60202755A (enrdf_load_stackoverflow)
AT (1) ATE34314T1 (enrdf_load_stackoverflow)
DE (2) DE3407326C2 (enrdf_load_stackoverflow)
ES (1) ES8606024A1 (enrdf_load_stackoverflow)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407326C2 (de) * 1984-02-29 1987-02-05 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle
ZA886696B (en) * 1987-09-11 1989-04-26 Alcan Int Ltd Method of separating metal alloy particles
DE3906422C1 (enrdf_load_stackoverflow) * 1989-03-01 1990-10-18 Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf, De
US5190635A (en) * 1989-04-03 1993-03-02 Ashland Oil, Inc. Superparamagnetic formation of FCC catalyst provides means of separation of old equilibrium fluid cracking catalyst
US5035331A (en) * 1989-08-14 1991-07-30 Paulson Jerome I Method and apparatus for removing dust and debris from particulate product
GB9008127D0 (en) * 1990-04-10 1990-06-06 Reid Peter T Methods of separating materials
US5171424A (en) * 1990-10-22 1992-12-15 Ashland Oil, Inc. Magnetic separation of old from new cracking catalyst by means of heavy rare earth "magnetic hooks"
DE4100346A1 (de) * 1991-01-08 1992-07-09 Preussag Ag Verfahren zur mechanischen aufbereitung von unsortiertem geraeteschrott
US5269424A (en) * 1991-06-26 1993-12-14 Corcon Mobile separation method system for abrasive blasting material
US5275292A (en) * 1992-05-18 1994-01-04 Brugger Richard D Eddy current separator
DE4222364A1 (de) * 1992-07-08 1994-01-13 Claas Ohg Vorrichtung zum Sichten und Sieben von Schüttgütern und selbstfahrender Mähdrescher mit einer derartigen Vorrichtung
US5538624A (en) * 1994-10-21 1996-07-23 Ashland Inc. Process, apparatus and compositions for recycle of cracking catalyst additives
US5626233A (en) * 1995-03-07 1997-05-06 Venturedyne, Ltd. Eddy current separator
US6355178B1 (en) 1999-04-02 2002-03-12 Theodore Couture Cyclonic separator with electrical or magnetic separation enhancement
US6595369B2 (en) * 2001-08-16 2003-07-22 Jerome I. Paulson Particulate material dedusting apparatus
US7681736B2 (en) * 2004-10-13 2010-03-23 Exportech Company, Inc. VacuMag magnetic separator and process
JP4690372B2 (ja) * 2007-09-03 2011-06-01 株式会社御池鐵工所 廃棄シート材の嵩比重を高めるプラント
CN102962244B (zh) * 2012-12-07 2015-07-08 桑德环境资源股份有限公司 废旧pcb板破碎分选系统
DE102013215062A1 (de) * 2013-07-31 2015-02-05 Krones Ag Zick-Zack-Sichter zum Separieren von Trenngut, beispielsweise Kunststoffflocken, und Verfahren zum Separieren von Trenngut, beispielsweise Kunststoffflocken, mittels eines Zick-Zack-Sichters
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

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB468212A (en) * 1935-12-27 1937-06-28 Windham Francis Carey Improvements in and relating to the classification of materials
SU74167A1 (ru) * 1947-07-17 1948-11-30 С.Я. Бурдианов Держатель граммофонной пластинки
SU74169A1 (ru) * 1948-06-15 1948-11-30 П.А. Караваев Устройство дл получени периодических импульсов регулируемой формы
US2959284A (en) * 1955-06-28 1960-11-08 Exxon Research Engineering Co Transporting and classifying fluid solids
FR1347498A (fr) * 1963-02-15 1963-12-27 Procédé de triage de métaux non ferreux
DE1482424A1 (de) * 1963-04-03 1969-06-04 Alpine Ag Sichter
US3441131A (en) * 1965-10-18 1969-04-29 Scient Separators Inc Particle separation apparatus and method
GB1185440A (en) * 1968-10-30 1970-03-25 Standard Telephones Cables Ltd A Method of and Apparatus for Separating Non-Magnetic Particles from Magnetic Particles.
GB1500990A (en) * 1974-03-11 1978-02-15 Occidental Petroleum Corp Separation of non-magnetic conductive metals
US4010096A (en) * 1975-10-09 1977-03-01 Allis-Chalmers Corporation Pneumatic classifier for refuse material with adjustable air intake
US4137156A (en) * 1975-03-21 1979-01-30 Occidental Petroleum Corporation Separation of non-magnetic conductive metals
JPS5253569A (en) * 1975-10-28 1977-04-30 Agency Of Ind Science & Technol Metal recovering apparatus
JPS5274167A (en) * 1975-12-16 1977-06-21 Agency Of Ind Science & Technol Recovery of metals out of solid waste pieces
JPS5274169A (en) * 1975-12-16 1977-06-21 Agency Of Ind Science & Technol Separation of metallic and non-metallic pieces
US4069145A (en) * 1976-05-24 1978-01-17 Magnetic Separation Systems, Inc. Electromagnetic eddy current materials separator apparatus and method
SU722609A1 (ru) * 1978-09-20 1980-04-05 Всесоюзный Научно-Исследовательский И Проектный Институт Вторичных Цветных Металлов "Вниипвторцветмет" Пневмосепаратор дл разделени сыпучих материалов
SU848093A1 (ru) * 1979-11-12 1981-07-23 Харьковский Инженерно-Экономическийинститут Пневматический классификатор
NL8000791A (nl) * 1980-02-08 1981-09-01 Esmil Bv Werkwijze en inrichting voor het scheiden van papier en kunststoffolie in een zifter.
FR2480624A1 (fr) * 1980-04-22 1981-10-23 Stephanois Rech Mec Procede et dispositif pour separer par induction des particules de materiaux
DE3407326C2 (de) * 1984-02-29 1987-02-05 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle

Also Published As

Publication number Publication date
JPH0155901B2 (enrdf_load_stackoverflow) 1989-11-28
DE3407326A1 (de) 1985-08-29
ES540725A0 (es) 1986-04-16
ATE34314T1 (de) 1988-06-15
US4772381A (en) 1988-09-20
DE3407326C2 (de) 1987-02-05
EP0154207A1 (de) 1985-09-11
DE3562713D1 (en) 1988-06-23
JPS60202755A (ja) 1985-10-14
ES8606024A1 (es) 1986-04-16
US4668381A (en) 1987-05-26

Similar Documents

Publication Publication Date Title
EP0154207B1 (de) Verfahren und Vorrichtung zum Abtrennen elektrisch leitfähiger Nichteisenmetalle
EP0898496B1 (de) Vorrichtung und verfahren zur teilchenseparation mit einem rotierenden magnetsystem
DE2653373A1 (de) Magnetische materialtrennungseinrichtung
EP2506978B1 (de) Vorrichtung und verfahren zur trennung von unterschiedlich elektrisch leitfähigen partikeln
DE8002678U1 (de) Metallsortiervorrichtung
WO2018177518A1 (de) Magnetabscheider
DE1207901B (de) Verfahren und Vorrichtung zur elektrostatischen Trennung von Erzen und anderen feinkoernigen Stoffen
DE19832828A1 (de) Verfahren, Anlage und Vorrichtung zur Wirbelstromscheidung von wiederaufzubereitenden eisenfreien Stoffgemischen, die Metall-, insbesondere Nichteisenmetallteilchen unterschiedlicher elektrischer Leitfähigkeit enthalten
DE19931931A1 (de) Verfahren und Vorrichtung zum Trennen von Partikeln mittels Aufladen durch Reibung
DE2555798C3 (de) Vorrichtung zum Abtrennen von stark magnetischen Teilchen
EP0881952B1 (de) Verfahren und vorrichtung zur steigerung der trennschärfe von wirbelstromscheidern
EP0550867B1 (de) Vorrichtung zum Abtrennen von nichtmagnetisierbaren Metallen aus einem Feststoffgemisch
DE2509638A1 (de) Abtrennungsverfahren und vorrichtung zur durchfuehrung
DE19737161A1 (de) Verfahren, Anlage und Vorrichtungen zum trockenen Abtrennen von Metallen aus zerkleinerten Schüttgütern, insbesondere Schrottgemischen
DE2611264B2 (de) Vorrichtung zum Trennen von nichtmagnetischen, jedoch elektrisch leitfähigen Teilchen aus einem Gemisch oder Gemenge
DE19634802A1 (de) Vorrichtung und Verfahren zur Teilchenseparation mit einem rotierenden Magnetsystem
DE3117063C1 (de) Vorrichtung zum Abscheiden von magnetisierbaren Stoffen aus einem magnetisierbare und nicht magnetisierbare Stoffe enthaltenden Gemisch
DE19629110C1 (de) Verfahren und Vorrichtung zum Trennen von feinteiligen Stoffgemischen mittels eines magnetischen Feldes
DE3321102C2 (de) Magnetohydrostatischer Scheider
WO2020187826A1 (de) Verfahren und vorrichtung zum trennen von aufgabegut
DE2649598C2 (de) Fliehkraft-Magnetscheider
DE2902219C2 (de) Magnetscheider
DE19535397A1 (de) Verfahren und Vorrichtung zum Trennen von bei Schneid-, Trenn- oder Bearbeitungsprozessen anfallenden Gemischen aus Abrasivmittel und Abriebpartikeln
EP3260203A1 (de) Vorrichtung zur trennung von partikeln unterschiedlicher elektrischer leitfähigkeit in einem inhomogenen sortiergut
DE4238988C2 (de) Vorrichtung zum Abtrennen von Metallen aus einem durch ein Magnetfeld geführten Gemisch

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19851223

17Q First examination report despatched

Effective date: 19860723

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 34314

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3562713

Country of ref document: DE

Date of ref document: 19880623

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910422

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920131

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920214

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920220

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920224

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19920226

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19920229

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19920304

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920318

Year of fee payment: 8

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930211

Ref country code: GB

Effective date: 19930211

Ref country code: AT

Effective date: 19930211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930228

Ref country code: CH

Effective date: 19930228

Ref country code: BE

Effective date: 19930228

BERE Be: lapsed

Owner name: LINDEMANN MASCHINENFABRIK G.M.B.H.

Effective date: 19930228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930211

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19931029

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85101432.4

Effective date: 19930912