GB2219225A - Improvements in and relating to magnetic separators - Google Patents

Improvements in and relating to magnetic separators

Info

Publication number
GB2219225A
GB2219225A GB8913855A GB8913855A GB2219225A GB 2219225 A GB2219225 A GB 2219225A GB 8913855 A GB8913855 A GB 8913855A GB 8913855 A GB8913855 A GB 8913855A GB 2219225 A GB2219225 A GB 2219225A
Authority
GB
United Kingdom
Prior art keywords
magnetic
magnet
coil
magnetic particles
relating
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
GB8913855A
Other versions
GB8913855D0 (en
GB2219225B (en
Inventor
Adam Antoni Stadmuller
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.)
Cryogenic Consultants Ltd
Original Assignee
Cryogenic Consultants Ltd
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 Cryogenic Consultants Ltd filed Critical Cryogenic Consultants Ltd
Publication of GB8913855D0 publication Critical patent/GB8913855D0/en
Publication of GB2219225A publication Critical patent/GB2219225A/en
Application granted granted Critical
Publication of GB2219225B publication Critical patent/GB2219225B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B03C1/035—Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap
    • 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
    • B03C1/04—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables
    • B03C1/08—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables with non-movable magnets
    • 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
    • B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
    • B03C1/20—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation in the form of belts, e.g. cross-belt type
    • 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
    • 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
    • B03C1/26—Magnetic separation acting directly on the substance being separated with free falling material
    • 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
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
    • 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
    • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
    • 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 whereby the particles to be separated are in solid form

Landscapes

  • Burglar Alarm Systems (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Sorting Of Articles (AREA)
  • Liquid Crystal (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

A magnetic separator comprises a magnet (2) positioned at an angle (3) to the vertical and means (4) for feeding a mixture of magnetic and non-magnetic particulate material at or closely or adjacent the magnet in the region of high magnetic field. The non-magnetic particles fall under the action of gravity only whereas the magnetic particles are diverted towards the magnet until the gravitational force exceeds that exerted by the magnet. The arrangement provides a clean separation between the magnetic and non-magnetic particles and may be employed to separate the particules according to degree of magnetic susceptibility. A magnet (2) for a magnetic separator is also described comprising a linear superconducting magnet having a coil (36) with two generally straight portions (38) joined by curved ends (40). The coil is supported by a clamp (42) in a cryostat vessel (35) with the longest axis arranged horizontally and so as to provide a magnetic separation zone on one side of the coil. The magnet is powerful, robust and has a long range.
GB8913855A 1986-12-19 1987-12-21 Improvements in and relating to magnetic separators Expired - Fee Related GB2219225B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868630381A GB8630381D0 (en) 1986-12-19 1986-12-19 Magnetic separators
PCT/GB1987/000915 WO1988004579A2 (en) 1986-12-19 1987-12-21 Improvements in and relating to magnetic separators

Publications (3)

Publication Number Publication Date
GB8913855D0 GB8913855D0 (en) 1989-08-23
GB2219225A true GB2219225A (en) 1989-12-06
GB2219225B GB2219225B (en) 1990-12-19

Family

ID=10609284

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868630381A Pending GB8630381D0 (en) 1986-12-19 1986-12-19 Magnetic separators
GB8913855A Expired - Fee Related GB2219225B (en) 1986-12-19 1987-12-21 Improvements in and relating to magnetic separators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868630381A Pending GB8630381D0 (en) 1986-12-19 1986-12-19 Magnetic separators

Country Status (7)

Country Link
EP (1) EP0339031B1 (en)
AT (1) ATE108346T1 (en)
AU (1) AU605232B2 (en)
DE (1) DE3750226T2 (en)
GB (2) GB8630381D0 (en)
WO (1) WO1988004579A2 (en)
ZA (1) ZA879568B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217632B (en) * 1988-04-22 1992-06-17 Cryogenic Consult Improvements in and relating to magnetic separators
CN103316762B (en) * 2013-05-30 2016-04-06 江苏旌凯中科超导高技术有限公司 Reciprocating dry-type magnetic separator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128304C (en) *
GB730405A (en) * 1951-10-19 1955-05-25 Veitscher Magnesitwerke Ag Method and apparatus for the magnetic separation of loose material containing magnetisable parts
FR2317013A1 (en) * 1975-06-27 1977-02-04 Kloeckner Humboldt Deutz Ag Magnetic sepn. of solid particles - by passing suspension in liq. through inclinable tube, incorporating conveyor band, in magnetic field

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1076467A (en) * 1964-08-19 1967-07-19 Electromagnets Ltd Process and apparatus for separating magnetically from a stream of material magnetisable matter which may be present in the stream
DE2157217A1 (en) * 1971-11-18 1973-05-24 Preussag Ag Magnetic separator - utilising supraconducting coil magnet
GB2102702B (en) * 1981-07-06 1985-11-27 Cryogenic Consult Magnet for magnetic separation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128304C (en) *
GB730405A (en) * 1951-10-19 1955-05-25 Veitscher Magnesitwerke Ag Method and apparatus for the magnetic separation of loose material containing magnetisable parts
FR2317013A1 (en) * 1975-06-27 1977-02-04 Kloeckner Humboldt Deutz Ag Magnetic sepn. of solid particles - by passing suspension in liq. through inclinable tube, incorporating conveyor band, in magnetic field

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Coal Age Vol 68 No 3 March 1963 p148 *

Also Published As

Publication number Publication date
GB8630381D0 (en) 1987-01-28
EP0339031B1 (en) 1994-07-13
GB8913855D0 (en) 1989-08-23
WO1988004579A2 (en) 1988-06-30
DE3750226D1 (en) 1994-08-18
DE3750226T2 (en) 1994-12-08
ATE108346T1 (en) 1994-07-15
GB2219225B (en) 1990-12-19
AU605232B2 (en) 1991-01-10
WO1988004579A3 (en) 1988-08-11
EP0339031A1 (en) 1989-11-02
ZA879568B (en) 1988-11-30
AU1059988A (en) 1988-07-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921221