EP0006885A1 - Séparateur magnétique à bandes transporteuses croisées. - Google Patents

Séparateur magnétique à bandes transporteuses croisées.

Info

Publication number
EP0006885A1
EP0006885A1 EP78900076A EP78900076A EP0006885A1 EP 0006885 A1 EP0006885 A1 EP 0006885A1 EP 78900076 A EP78900076 A EP 78900076A EP 78900076 A EP78900076 A EP 78900076A EP 0006885 A1 EP0006885 A1 EP 0006885A1
Authority
EP
European Patent Office
Prior art keywords
soft iron
magnetic separator
belts
belt
wedge
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.)
Granted
Application number
EP78900076A
Other languages
German (de)
English (en)
Other versions
EP0006885B1 (fr
Inventor
Heinrich Spodig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0006885A1 publication Critical patent/EP0006885A1/fr
Application granted granted Critical
Publication of EP0006885B1 publication Critical patent/EP0006885B1/fr
Expired legal-status Critical Current

Links

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
    • B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
    • B03C1/22—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets

Definitions

  • the present invention relates to a magnetic separator with intersecting conveyor belts, the lower belt being used to transport the material to be separated, while the upper belt is carrying the separated material.
  • Magnetic separators for the separation of substances of different magnetic excitability using intersecting means of transportation have become known, for example, from DE-PS 180 923.
  • Magnetically influenced drums are arranged transversely to the feed belt.
  • the separation performance is relatively low because of the large stray field losses that cannot be avoided.
  • the aim of the invention is to largely reduce the stray field losses of the known systems in magnetic separators with intersecting conveyor belts and in this way to achieve better efficiencies.
  • a magnetic separator of the type mentioned at the outset that a frame with a closed permanent magnet system is arranged on each side of the discharge belt, the frames each being composed of four directionally magnetized block magnets and soft iron intermediate pieces which are connected in pairs by soft iron parts and which are composed of a Soft iron poi pieces forming the working air gap are connected to one another.
  • the soft iron part arranged above the lower run of the discharge belt with a wedge-shaped cross section and the soft iron part arranged below the upper run of the conveyor belt with a prismatic cross section.
  • the upper soft iron part can have several wedge-shaped cross sections assigned to the individual discharge belts and the lower soft iron part several prismatic cross sections assigned to the individual discharge belts.
  • the wedge-shaped cross sections are expediently arranged at different heights above the conveyor belt. It is advantageous if the distance of the wedge-shaped cross sections from the conveyor belt decreases in the running direction of the conveyor belt.
  • Fig. 1 is a perspective view of the magnetic separator, partially cut, with a conveyor belt for the material to be separated and three discharge belts for the material to be separated and 2 shows a section through the magnetic separator along the line AA of FIG. 1st
  • the magnetic separator consists of a closed permanent magnetic circuit arrangement and an endless conveyor belt 1 for the goods to be separated and three endless discharge belts 2, 3, 4 for the removal of the separated goods, which run in a direction transverse to the conveyor belt 1.
  • the magnetic circuit arrangement consists of frames arranged on both sides of the discharge belts 2, 3, 4, each consisting of the block magnets 9, 10 connected by the soft iron parts 5, 6 and 7, 8; 11, 12 and 13, 14; 15, 16 and the soft iron intermediate pieces 17, 18 and 19, 20.
  • the frames are connected to one another by pole pieces 21, 22, which are each firmly connected to the intermediate pieces 17, 19 and 18, 20 in a magnetically highly conductive manner, the intermediate pieces 17, 19 and 18, 20 being located at a distance from one another is sufficient to guide the conveyor belt 1 and the discharge belts 2, 3, 4.
  • the polarities of the block magnets 9, 10 follow within the closed frame; 11, 12 and 13, 14; 15, 16 one on the other so that the intermediate pieces 18 and 20 a multiple N polarity and the intermediate pieces 17 and 19 receive a multiple S polarity or vice versa. This creates a strong, concentrated magnetic field between the pole pieces 21, 22 in the passage area of the bands 1, 2, 3, 4.
  • the pole piece 22 is divided into wedge-shaped cross sections 23, while the pole piece 21 located opposite the upper run of the conveyor belt 1 has corresponding prismatic cross sections 24.
  • the magnetic field is at the tips of the wedge-shaped cross sections 23 Art concentrated that the iron parts contained in the material to be separated transported by the conveyor belt 1 jump in the magnetic field only in the direction of the tips and are thereby conveyed out and separated from the magnetic field by the discharge belts 2, 3, 4.
  • the conveyor belt 1 is loaded with material to be separated via the funnel 25.
  • a special embodiment of the pole piece 22 still consists in providing the wedge-shaped cross sections 23 at different heights and, accordingly, the discharge belts 2, 3, 4.
  • the wedge-shaped cross sections 23 are arranged such that the distance of the wedge-shaped cross sections 23 from the conveyor belt 1 decreases in the running direction of the conveyor belt 1.
  • a rough separation takes place in the first, a finer separation in the second and a finest separation in the third.

Landscapes

  • Sorting Of Articles (AREA)
  • Belt Conveyors (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Liquid Crystal (AREA)

Abstract

Le separateur magnetique a bandes transporteuses croisees separe des matieres ayant des susceptibilites magnetiques differentes. Dans ce separateur la bande (1) du dessous transporte la matiere a traiter tandis que la bande du dessus livre la matiere separee. De chaque cote de la bande (2, 3, 4) se trouve un cadre constituant un circuit magnetique a aimant permanent. Chacun de ces cadres est forme de quatre blocs-aimants a magnetisation orientee (9, 10, 11, 12, 13, 14, 15, 16) connectes deux a deux par des parties en fer doux (5, 6, 7, 8) et des pieces intercalaires (17, 18, 19, 20) egalement en fer doux. Ces dernieres sont reliees entre elles par des pieces polaires (21, 22) formant un entrefer de travail. Cette disposition vise a une meilleure efficacite du separateur en diminuant les pertes par flux de fuite.
EP78900076A 1977-08-04 1978-07-07 Séparateur magnétique à bandes transporteuses croisées Expired EP0006885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2735150A DE2735150C2 (de) 1977-08-04 1977-08-04 Kreuzband-Magnetscheider
DE2735150 1977-08-04

Publications (2)

Publication Number Publication Date
EP0006885A1 true EP0006885A1 (fr) 1980-01-23
EP0006885B1 EP0006885B1 (fr) 1981-07-01

Family

ID=6015620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78900076A Expired EP0006885B1 (fr) 1977-08-04 1978-07-07 Séparateur magnétique à bandes transporteuses croisées

Country Status (18)

Country Link
US (1) US4273646A (fr)
EP (1) EP0006885B1 (fr)
JP (1) JPS5448380A (fr)
AT (1) AT362735B (fr)
BE (1) BE869082R (fr)
CH (1) CH625138A5 (fr)
DD (1) DD137534A5 (fr)
DE (1) DE2735150C2 (fr)
DK (1) DK369377A (fr)
ES (1) ES472364A1 (fr)
FI (1) FI772477A (fr)
GB (1) GB2021000B (fr)
IT (1) IT1109977B (fr)
NL (1) NL7808177A (fr)
NO (1) NO772902L (fr)
PL (1) PL208827A1 (fr)
SE (1) SE7709181L (fr)
WO (1) WO1979000085A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915192A1 (de) * 1979-04-10 1980-10-30 Spodig Heinrich Permanentmagnetischer stromerzeuger
US6899230B2 (en) * 2000-11-20 2005-05-31 Magnetic Torque International, Ltd. Apparatus and method for isolating materials
CA2675311A1 (fr) * 2007-01-12 2008-07-24 Nu-Iron Technology, Llc Systeme et procede de refroidissement et d'elimination du fer d'un foyer
WO2012074692A1 (fr) 2010-11-09 2012-06-07 Eriez Manufacturing Co. Procédé permettant d'améliorer la qualité des matériaux séparés dans l'industrie de traitement de déchets de métaux
US9539584B2 (en) * 2012-03-28 2017-01-10 National Institute Of Advanced Industrial Science And Technology Magnetic separator
CN104722399A (zh) * 2015-01-22 2015-06-24 包头市金蒙汇磁材料有限责任公司 一种分离稀土永磁材料中杂质的磁选机
US10112201B2 (en) * 2016-04-26 2018-10-30 DRP Ventures Inc. Method and apparatus for cleaning a machine employing permanent magnets to remove ferrous metals from a flow of material
US10758918B2 (en) * 2016-04-26 2020-09-01 DRP Ventures Inc. Method and apparatus for cleaning a machine employing permanent magnets to remove ferrous metals from a flow of material

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US825672A (en) * 1906-07-10 Imp Ore Separator Company Magnetic ore-separator.
US750594A (en) * 1904-01-26 Magnet
US815113A (en) * 1904-05-19 1906-03-13 Francis James Odling Wet magnetic ore-separator.
US1068453A (en) * 1912-12-12 1913-07-29 Wetherill Separating Company Magnetic separator.
US1130648A (en) * 1913-11-25 1915-03-02 Krupp Ag Grusonwerk Magnetic separator.
US1490792A (en) * 1921-05-11 1924-04-15 Woodworth Leon Byron Magnetic separator
US1565038A (en) * 1924-12-19 1925-12-08 Krupp Ag Grusonwerk Zone pole for magnetic separators
GB251821A (en) * 1925-08-18 1926-05-13 Arthur Davies Improvements in machinery for the electro magnetic separation of ores
US2591121A (en) * 1947-05-10 1952-04-01 Dings Magnetic Separator Co Crossbelt magnetic separator
US2591122A (en) * 1947-12-03 1952-04-01 Dings Magnetic Separator Co Crossbelt magnetic separator
US2724504A (en) * 1953-02-19 1955-11-22 Dings Magnetic Separator Co Cross-belt magnetic separator
GB724621A (en) * 1953-06-29 1955-02-23 Spodig Heinrich Improvements relating to a permanent magnetic separating apparatus
US3042205A (en) * 1958-05-19 1962-07-03 Robert F Merwin Magnetic separator with magnetic rubber element
AT315529B (de) * 1970-02-24 1974-05-27 Boehler & Co Ag Geb Luftspaltmagnetsystem
US3948764A (en) * 1974-09-23 1976-04-06 Browning-Ferris Industries, Inc. Catalyst screening unit
DE2607197C3 (de) * 1976-02-23 1979-09-20 Heinrich Dr.-Ing. 4714 Selm Spodig Unabgeschirmtes dauermagnetisches Doppeljochsystem
DE2612834A1 (de) * 1976-03-26 1977-09-29 Spodig Heinrich Magnetscheider

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO7900085A1 *

Also Published As

Publication number Publication date
DE2735150A1 (de) 1979-02-15
NL7808177A (nl) 1979-02-06
GB2021000B (en) 1982-06-03
IT1109977B (it) 1985-12-23
WO1979000085A1 (fr) 1979-02-22
CH625138A5 (fr) 1981-09-15
DD137534A5 (de) 1979-09-12
GB2021000A (en) 1979-11-28
JPS5448380A (en) 1979-04-16
SE7709181L (sv) 1979-02-05
BE869082R (fr) 1978-11-16
DK369377A (da) 1979-02-05
AT362735B (de) 1981-06-10
EP0006885B1 (fr) 1981-07-01
PL208827A1 (pl) 1979-05-07
US4273646A (en) 1981-06-16
FI772477A (fi) 1979-02-05
NO772902L (no) 1979-02-06
ATA536178A (de) 1980-11-15
DE2735150C2 (de) 1985-10-17
IT7826500A0 (it) 1978-08-04
ES472364A1 (es) 1979-04-01

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