EP0339195B1 - Magnetscheider - Google Patents

Magnetscheider Download PDF

Info

Publication number
EP0339195B1
EP0339195B1 EP89102517A EP89102517A EP0339195B1 EP 0339195 B1 EP0339195 B1 EP 0339195B1 EP 89102517 A EP89102517 A EP 89102517A EP 89102517 A EP89102517 A EP 89102517A EP 0339195 B1 EP0339195 B1 EP 0339195B1
Authority
EP
European Patent Office
Prior art keywords
belt drum
belt
drum
magnet system
conveyor belt
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 - Lifetime
Application number
EP89102517A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0339195A3 (en
EP0339195A2 (de
Inventor
Klaus Dipl.-Ing. Feistner
Gerd Fassbender
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.)
Steinert Elektromagnetbau GmbH
Original Assignee
Steinert Elektromagnetbau 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 Steinert Elektromagnetbau GmbH filed Critical Steinert Elektromagnetbau GmbH
Priority to AT89102517T priority Critical patent/ATE91090T1/de
Publication of EP0339195A2 publication Critical patent/EP0339195A2/de
Publication of EP0339195A3 publication Critical patent/EP0339195A3/de
Application granted granted Critical
Publication of EP0339195B1 publication Critical patent/EP0339195B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B03C1/247—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 rotating magnetic drum
    • 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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation of bulk or dry particles in mixtures

Definitions

  • the invention relates to a magnetic separator with a conveyor belt guided over a belt drum made of non-electrically conductive material for the transport of a fraction to be sorted from more or less highly electrically conductive particles, with a magnet system rotatably driven in the belt drum at a higher rotational speed than that of the belt drum and with a collecting container for the separated electrically conductive particles arranged in the material discharge zone of the belt drum.
  • a magnetic system arranged in a drum rotates within the belt drum at a speed of approximately 1500 rpm, while the conveyor belt carries the fraction to be sorted at a speed of 1 m / sec to 1.5 m / sec of the belt drum and thus feeds the magnet system.
  • the drum in which the magnet system is arranged has an outer diameter which corresponds approximately to the inner diameter of the belt drum, and a small, constant air gap is formed between the magnet system and the belt drum.
  • a ferromagnetic particle can get between the conveyor belt and its belt drum. It is also possible that such a particle can get through a wear point in a conveyor belt between the belt drum and the conveyor belt. These ferromagnetic particles are held in place by the magnetic force and circulate on the belt drum.
  • the belt drum In order not to impair the effect of the magnet system, the belt drum must be made of non-conductive material. As a rule, the belt drum of such a system is made of plastic. However, this plastic material will already melt at relatively low temperatures.
  • a magnetizable electrically conductive particle, i.e. Iron particles, which have settled between the conveyor belt and the belt drum, are warmed up so strongly by the alternating magnetic field of the magnet system that they begin to glow.
  • the particle can work its way through the plastic of the belt drum and enters the air gap between the outer surface of the magnet system and the inner surface of the belt drum.
  • the device may then be severely damaged under certain circumstances, since the rapidly rotating magnetic system takes the iron particles with it and, for example, slits the belt drum jacket. This entails a system shutdown and an expensive repair.
  • a magnetic separator drum is known (JP-A-57119856), in which the fraction to be sorted is placed directly on the drum jacket, within which a rotating magnet system is arranged eccentrically.
  • JP-A-57119856 a magnetic separator drum
  • small iron particles are held on the drum in the vicinity of the rotating magnet system and warmed up strongly so that they start to glow because there is no conveyor belt that could take such particles with them.
  • the invention is based on the object of designing a generic magnetic separator in such a way that damage to the belt drum caused by particles passing between the conveyor belt and belt drum is avoided.
  • an iron particle gets between the belt drum and the belt, it is clamped between the belt drum and the belt and thereby initially guided past the rapidly rotating magnet system, but it cannot be held by it, but it is forced to rotate Belt drum placed at a greater distance from the magnet system.
  • the influence of the magnetic lines of force on the iron particle is so small that it either gets stuck on the belt drum or falls on the lower run of the conveyor belt.
  • the magnet system can be pivoted about the central axis of the belt drum, so that the relative position between the magnet system and the belt drum can be adjusted with simple means and, for example, maintenance work can be facilitated.
  • the belt drum Preferably, are arranged on the outside of the belt drum between the upper and lower run of the conveyor belt and / or on the inside of the lower run of the conveyor belt in the direction of rotation of the belt drum behind this scraper, so that iron particles passing between the conveyor belt and the belt drum from the belt drum or the lower run of the Conveyor belt can be stripped and derived. This prevents damage to the belt drum caused by the trapped iron particles.
  • the diameter of the magnet system is preferably approximately half the diameter of the belt drum, so that the magnet system can be pivoted through 360 ° around the central axis of the belt drum.
  • the magnet system can consist of permanent or electromagnets.
  • the figure shows a conveyor belt 10 which is guided over a belt drum 12.
  • a fraction of more or less electrically conductive particles 16 is arranged, which are transported at a speed of about 1 m / sec to 1.5 m / sec in the direction of arrow 18 on the conveyor belt 10.
  • the belt drum 12 consists of electrically non-conductive material, for example a plastic material.
  • the cylinder drum 24 of the magnet system 20 has approximately half the diameter of the belt drum 12.
  • the central axis 26 of the cylinder drum 24 is arranged eccentrically to the central axis 28 of the belt drum 12.
  • the cylinder drum 24 can be pivoted with the magnets 22 by means of arms 30 about the central axis 28 of the belt drum 12.
  • the magnet system 20 is arranged in the position shown in the figure in order to optimally separate particles which are good electrical conductors from particles which are less electrically conductive.
  • the magnet system 20 rotates around the center point 26 at a speed of approximately 25 s ⁇ 1 (1500 rpm).
  • a container 32 In front of the belt drum 12 there is a container 32 into which the highly electrically conductive particles 34 fall.
  • the magnetic lines of force of the magnet system 20 cut through the belt drum 12 and the conveyor belt 10 and the electrically conductive particles 16 indicated on the conveyor belt.
  • currents are induced in the electrically conductive particles, which are higher in the case of well electrically conductive particles than less conductive particles.
  • the particles with good electrical conductivity are then accelerated onto a throwing path, which is indicated by the arrow 36. The less conductive particles remain near the conveyor belt and fall down between it and the container 32.
  • An air gap 38 is formed between the outer surface of the cylinder drum 24 of the magnet system 20 and the inner surface of the belt drum 12, which air gap 38 changes continuously due to the eccentric arrangement of the magnet system 20 in the belt drum 12.
  • a wiper 40 and a collecting container 42 underneath are arranged on the outer surface of the belt drum 12 opposite to the magnet system 20 arranged in the belt drum 12.
  • Another scraper 44 is provided on the inner surface of the lower run 46 of the conveyor belt 10.
  • an iron particle 48 gets between the inside of the conveyor belt 10 and the outside of the drum 12, a current is induced in it by the action of the magnetic lines of force of the magnetic field 20 and the iron particle 48 becomes due to the high speed of rotation of the magnet system 20 entrained on the outer surface of the belt drum 12 until after sufficient rotation of the belt drum 12 the distance of the iron particle 48 arranged on the outer surface to the magnet system 20 becomes so great that the magnetic lines of force lose their influence on the iron particle 48. If the iron particle 48 remains stuck to the belt drum 12, it can be stripped off by the scraper 40 and released into the collecting container 42.
  • the particle falls beforehand from the outer surface of the belt drum 12 onto the lower strand 46, it will become from the scraper 44 removed from the space between the upper and lower run of the conveyor belt 10.
  • the eccentric arrangement of the magnet system 20 in the belt drum 12 and due to the smaller diameter of the magnet system 20 prevent an iron particle 48 between the belt drum 12 and the conveyor belt 10 from being entrained by the magnet system at a higher speed than the belt drum 12, so that since the iron particle 48 does not undergo very great heating due to the influence of the magnet system 20, damage to the belt drum 12, that is to say, for example, a slitting thereof by the iron particle 48 is excluded.

Landscapes

  • Electrostatic Separation (AREA)
  • Non-Mechanical Conveyors (AREA)
EP89102517A 1988-04-25 1989-02-14 Magnetscheider Expired - Lifetime EP0339195B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89102517T ATE91090T1 (de) 1988-04-25 1989-02-14 Magnetscheider.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3813906 1988-04-25
DE8805463 1988-04-25
DE3813906 1988-04-25
DE3823944A DE3823944C1 (enrdf_load_stackoverflow) 1988-04-25 1988-07-14
DE8809072U DE8809072U1 (de) 1988-04-25 1988-07-14 Permanentmagnetischer Scheider
DE3823944 1988-07-14

Publications (3)

Publication Number Publication Date
EP0339195A2 EP0339195A2 (de) 1989-11-02
EP0339195A3 EP0339195A3 (en) 1990-07-11
EP0339195B1 true EP0339195B1 (de) 1993-06-30

Family

ID=39357434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102517A Expired - Lifetime EP0339195B1 (de) 1988-04-25 1989-02-14 Magnetscheider

Country Status (6)

Country Link
US (1) US5092986A (enrdf_load_stackoverflow)
EP (1) EP0339195B1 (enrdf_load_stackoverflow)
JP (1) JPH084759B2 (enrdf_load_stackoverflow)
CA (1) CA1337488C (enrdf_load_stackoverflow)
DE (2) DE8809072U1 (enrdf_load_stackoverflow)
ES (1) ES2041353T3 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056658C1 (de) * 2000-11-15 2002-07-04 Steinert Gmbh Elektromagnetbau Vorrichtung und Verfahren zum Separieren von einer Metalle enthaltenden Feststoffmischung
DE102005054811A1 (de) * 2005-07-01 2007-01-11 Steinert Elektromagnetbau Gmbh Verfahren und Vorrichtung zum Abtrennen von Metallfraktionen und/oder -teilen aus Materialgemischen
DE202009014381U1 (de) * 2009-10-23 2010-12-09 Imro Maschinenbau Gmbh Vorrichtung zur Separation von Nichteisenmetallen

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906422C1 (enrdf_load_stackoverflow) * 1989-03-01 1990-10-18 Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf, De
DE58905733D1 (de) * 1988-05-19 1993-11-04 Lindemann Maschfab Gmbh Vorrichtung zum abtrennen von nichtmagnetisierbaren metallen aus einer feststoffmischung.
JPH084760B2 (ja) * 1989-08-08 1996-01-24 三菱製鋼磁材株式会社 回転式ドラム型非磁性金属分離装置
FR2657544B1 (fr) * 1990-01-29 1992-04-17 Andrin G Separateur magnetique de particules et morceaux en metal non-ferreux.
FR2671494B1 (fr) * 1991-01-10 1994-01-14 Andrin Fils Ets G Separateur magnetique de particules en metal non ferreux.
JPH0653531U (ja) * 1991-01-25 1994-07-22 前田建設工業株式会社 ベルトコンベヤ
JP2686006B2 (ja) * 1991-09-09 1997-12-08 富士写真フイルム株式会社 パトローネリサイクル装置及びこれに用いる整列装置
US5411147A (en) * 1993-01-28 1995-05-02 Bond; David S. Dynamic landfill recycling system
JPH0771645B2 (ja) * 1993-03-31 1995-08-02 豊田通商株式会社 導電性材料選別装置
DE4317640A1 (de) * 1993-05-27 1994-12-08 Nsm Magnettechnik Gmbh Einrichtung zur Lagebeeinflussung von Teilen aus elektrisch leitenden, nicht-ferromagnetischen Materialien, insbesondere zum Transportieren und/oder Sortieren von solchen Teilen
DE4323932C1 (de) * 1993-07-16 1995-02-02 Steinert Gmbh Elektromagnetbau Magnetsystem zur Teilchenseparation
US5522513A (en) * 1994-03-30 1996-06-04 Howell; Billy R. Separator disc
US5423433A (en) * 1994-05-06 1995-06-13 Osborn Engineering, Inc. Material separator apparatus
US5494172A (en) * 1994-05-12 1996-02-27 Miller Compressing Company Magnetic pulley assembly
US5626233A (en) * 1995-03-07 1997-05-06 Venturedyne, Ltd. Eddy current separator
US5860532A (en) * 1996-11-08 1999-01-19 Arvidson; Bo R. Material separator
DE19711340C1 (de) * 1997-03-18 1998-11-12 Steinert Elektromagnetbau Magnetscheidevorrichtung
US6149014A (en) * 1997-12-04 2000-11-21 Eriez Manufacturing Co. Mill magnet separator and method for separating
US6119922A (en) * 1998-11-17 2000-09-19 Hoskins Manufacturing Company Method for making mineral insulated cable
DE10057535C1 (de) * 2000-11-20 2002-08-22 Steinert Gmbh Elektromagnetbau Vorrichtung zum Abtrennen von nichtmagnetisierbaren Metallen und Fe-Anteilen aus einer Feststoffmischung
US7255793B2 (en) * 2001-05-30 2007-08-14 Cort Steven L Methods for removing heavy metals from water using chemical precipitation and field separation methods
US6634504B2 (en) 2001-07-12 2003-10-21 Micron Technology, Inc. Method for magnetically separating integrated circuit devices
ES2182716B1 (es) * 2001-07-25 2004-06-01 Virginia Campins Bagur Separador magnetico de cuerpos metalicos no ferromagneticos.
US7228198B2 (en) 2002-08-09 2007-06-05 Mckesson Automation Systems, Inc. Prescription filling apparatus implementing a pick and place method
US7303094B2 (en) 2002-08-09 2007-12-04 Kevin Hutchinson Vacuum pill dispensing cassette and counting machine
CN100563839C (zh) * 2003-11-07 2009-12-02 Sgm台架股份公司 具有铁氧体和稀土永磁体的磁分离器
DE602004027312D1 (de) * 2004-06-07 2010-07-01 Sgm Gantry Spa Magnetabscheider für ferromagnetische materialien mit drehrolle mit kontrolliertem schlupf und entsprechendes betriebsverfahren
RU2342198C2 (ru) * 2004-06-07 2008-12-27 СГМ ГАНТРИ С.п.А. Магнитный сепаратор для ферромагнитных материалов с вращающимся роликом с управляемым проскальзыванием и соответствующий способ работы
US20070039894A1 (en) * 2005-08-17 2007-02-22 Cort Steven L Water treatment using magnetic and other field separation technologies
DE102006021558B4 (de) * 2006-05-08 2011-06-16 Heidemann Recycling Gmbh Anlage zur kombinierten Siebung und Nichteisenmetallscheidung
CZ300502B6 (cs) * 2006-12-31 2009-06-03 SVÚM a. s. Magnetický buben separátoru
AU2007342680B2 (en) * 2007-01-09 2010-07-22 Evoqua Water Technologies Llc Improved collection system for a wet drum magnetic separator
WO2008089060A1 (en) * 2007-01-12 2008-07-24 Nu-Iron Technology, Llc System and method for cooling and removing iron from a hearth
US20080257795A1 (en) * 2007-04-17 2008-10-23 Eriez Manufacturing Co. Multiple Zone and Multiple Materials Sorting
US7841474B2 (en) * 2008-11-19 2010-11-30 Outotec Oyj Beltless rare earth roll magnetic separator system and method
UA106632C2 (uk) * 2009-09-07 2014-09-25 Кертін Юніверсеті Оф Текноледжі Спосіб сортування сипкої речовини
WO2012121437A1 (ko) * 2011-03-10 2012-09-13 한국지질자원연구원 자력선별기
CN103008104A (zh) * 2011-09-22 2013-04-03 范翔生 一种废旧轮胎破碎颗粒除丝装置
FR2989288B1 (fr) 2012-04-12 2015-01-16 Magpro Separateur par courant de foucault
NL2011525C2 (en) 2013-09-30 2015-04-01 Recco B V Eddy current seperator unit having a magnetic rotor positioned eccentrically inside an outer drum and coaxially inside an inner drum.
CN104069943A (zh) * 2014-06-20 2014-10-01 周开雄 一种干式磁选机
NL2013128B1 (nl) * 2014-07-04 2016-09-09 Goudsmit Magnetic Systems B V Omleidrol voor een non-ferro afvalscheider, alsmede non-ferro afvalscheider voorzien van de omleidrol.
CN105689117B (zh) * 2016-02-05 2018-06-01 鄂尔多斯市君致清环境科技有限公司 一种浓缩磁选机及基于该浓缩磁选机的浓缩方法
CN107630704B (zh) * 2017-08-10 2019-12-10 中国铁建重工集团股份有限公司 一种硬岩掘进机的出渣系统及出渣分选方法
AT520710B1 (de) 2017-11-24 2022-07-15 Ife Aufbereitungstechnik Gmbh Magnetscheider
CN111689131B (zh) * 2020-07-01 2022-03-15 浙江海致建设有限公司 一种建筑垃圾回收的运输线除铁装置
DE102022104337B4 (de) 2022-02-23 2024-05-16 IMRO-Maschinenbau GmbH Separationstrommel und Verfahren zum Betrieb einer Separationstrommel
DE102022106004A1 (de) 2022-03-15 2023-09-21 IMRO-Maschinenbau GmbH Vorrichtung zum Sortieren von Objekten und Verfahren zum Einstellen einer Vorrichtung zum Sortieren von Objekten

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DE191492C (enrdf_load_stackoverflow) *
DE298617C (enrdf_load_stackoverflow) *
US1462584A (en) * 1922-04-11 1923-07-24 John G Kirschner Placer-mining machine
US3448857A (en) * 1966-10-24 1969-06-10 Eriez Magnetics Electrodynamic separator
FI48535C (fi) * 1972-05-26 1974-11-11 Permeco Oy Kestomagneetti-vahvakenttäseparaattori
JPS5274168A (en) * 1975-12-16 1977-06-21 Agency Of Ind Science & Technol Separation of hairy metallic materials from solid waste pieces
DE58905733D1 (de) * 1988-05-19 1993-11-04 Lindemann Maschfab Gmbh Vorrichtung zum abtrennen von nichtmagnetisierbaren metallen aus einer feststoffmischung.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056658C1 (de) * 2000-11-15 2002-07-04 Steinert Gmbh Elektromagnetbau Vorrichtung und Verfahren zum Separieren von einer Metalle enthaltenden Feststoffmischung
DE102005054811A1 (de) * 2005-07-01 2007-01-11 Steinert Elektromagnetbau Gmbh Verfahren und Vorrichtung zum Abtrennen von Metallfraktionen und/oder -teilen aus Materialgemischen
DE102005054811B4 (de) * 2005-07-01 2007-06-14 Steinert Elektromagnetbau Gmbh Verfahren und Vorrichtung zum Abtrennen von Metallfraktionen und/oder -teilen aus Materialgemischen
DE202009014381U1 (de) * 2009-10-23 2010-12-09 Imro Maschinenbau Gmbh Vorrichtung zur Separation von Nichteisenmetallen

Also Published As

Publication number Publication date
DE8809072U1 (de) 1988-10-06
EP0339195A3 (en) 1990-07-11
ES2041353T3 (es) 1993-11-16
JPH084759B2 (ja) 1996-01-24
EP0339195A2 (de) 1989-11-02
CA1337488C (en) 1995-10-31
JPH02218451A (ja) 1990-08-31
US5092986A (en) 1992-03-03
DE3823944C1 (enrdf_load_stackoverflow) 1989-11-30

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