GB1036604A - High tension separation of materials - Google Patents

High tension separation of materials

Info

Publication number
GB1036604A
GB1036604A GB42713/64A GB4271364A GB1036604A GB 1036604 A GB1036604 A GB 1036604A GB 42713/64 A GB42713/64 A GB 42713/64A GB 4271364 A GB4271364 A GB 4271364A GB 1036604 A GB1036604 A GB 1036604A
Authority
GB
United Kingdom
Prior art keywords
particles
rotor
electrode
conductive
pinned
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
GB42713/64A
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.)
Carpco Research and Engineering Inc
Original Assignee
Carpco Research and Engineering Inc
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 Carpco Research and Engineering Inc filed Critical Carpco Research and Engineering Inc
Publication of GB1036604A publication Critical patent/GB1036604A/en
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
    • B03C7/00—Separating solids from solids by electrostatic effect
    • 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
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/02—Separators
    • B03C7/06—Separators with cylindrical material carriers

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Disintegrating Or Milling (AREA)
  • Electrostatic Separation (AREA)

Abstract

1, 36, 604. Electrostatic precipitation. CARPCO RESEARCH & ENGINEERING Inc. Oct. 20, 1964 [July 10, 1964], No. 42713/64. Heading B2J. Particles of varying conductivity contained in a mixture of particulate materials are separated by subjecting the mixture while disposed on a grounded conductive surface to a spray of mobile ions produced by a corona discharge pulsed at a rate of about 150 to 800 pulses per second, removing the mixture from the spray of mobile ions, and separately collecting the particles pinned to the grounded conductive surface by the mobile ions and the particles not so pinned. The process is especially directed to the separation comminuted ores containing fine particles ranging in size from 200 mesh down to 5 microns. Mineral particles 38 are fed from a hopper 12 on to an earthed rotor 10 of electrically conductive material and revolving at high speed (e.g. 900- 1500 ft. per min. for a 14-16 inches dia. rotor). The particles are subjected to an ionizing field from an electrode 14 having a corona discharging wire portion 16 directed radially toward the rotor so that the particles become discharged. The conductive particles contact the rotor and have their charges reversed whereas the non-conductive particles do not suffer reversal of charge and become pinned to the surface of the rotor. The conductive particles are then subjected to an external electric field produced by an electrode 20 which may be powered by a different or, as shown, by the same source 18 of unindirectional pulsed voltage (10-100 KV) as the electrode 14. The relatively light conductive particles 40 under the influence of the electric field and also of centrifugal and gravitational forces are removed from the rotor surface and are displaced towards the electrode 20 which may also be provided with an corona discharge wire 22 directed away from the rotor and serving to displace the particles further away from the rotor so that they fall in a compartment 50. As the rotor continues to rotate, the heavier con - ductive particles 44 together with some of the gangue material fall by gravity via compartment 48 to form a middling fraction. The majority of the pinned non-conductive particles 42 are removed from the rotor, surface by a wire electrode 30 connected to a high-frequency A.C. source 32 and fall via compartment 46 as a tailing fraction. Any remaining non-conductive particles still remaining on the rotor are physically removed by a brush 34. The middling fraction may be recirculated to exhaustion to increase the recovery of valuable components of the ore. Dimensional features of the apparatus and experimental results are given.
GB42713/64A 1964-07-10 1964-10-20 High tension separation of materials Expired GB1036604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US381772A US3322275A (en) 1964-07-10 1964-07-10 High tension separation of materials

Publications (1)

Publication Number Publication Date
GB1036604A true GB1036604A (en) 1966-07-20

Family

ID=23506300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42713/64A Expired GB1036604A (en) 1964-07-10 1964-10-20 High tension separation of materials

Country Status (5)

Country Link
US (1) US3322275A (en)
DE (1) DE1274532B (en)
GB (1) GB1036604A (en)
MY (1) MY6900012A (en)
SE (1) SE311129B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129337A (en) * 1982-11-04 1984-05-16 Beloit Corp An electrical separator of the ion bombardment type
EP1354631A2 (en) * 2002-04-17 2003-10-22 Kenzo Takahashi Shredder dust electrostatic separation apparatus and method
US7153278B2 (en) 2003-08-22 2006-12-26 Kabushiki Kaisha Sato Sleep apnea syndrome diagnosing device and signal analyzer, and methods thereof

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938178B1 (en) * 1970-12-02 1974-10-16
US3941684A (en) * 1974-03-11 1976-03-02 Leesona Corporation Scrap salvage system
US4116822A (en) * 1974-06-04 1978-09-26 Carpco, Inc. Method of selectively separating glass from waste material
US3970546A (en) * 1974-06-04 1976-07-20 Carpco, Inc. Method and apparatus for separating non-ferrous metal from waste material
US4247390A (en) * 1978-10-23 1981-01-27 Knoll Frank S Method of separating vermiculite from the associated gangue
US4251353A (en) * 1978-11-13 1981-02-17 Knoll Frank S Method of treating refuse to separate valuable constituents
US4326951A (en) * 1980-03-17 1982-04-27 Broz Frank J Electrostatic mineral concentrator
HU191615B (en) * 1983-12-01 1987-03-30 Bacsalmasi Aag Method for separating granular material masses in components
BR8707724A (en) * 1987-04-21 1989-10-31 Gpki Ex I Obogatil Ob Gipromas DRUM TYPE ELECTROSTATIC SEPARATOR
US4943368A (en) * 1988-11-15 1990-07-24 Pittsburgh Mineral & Environmental Technology, Inc. Nonmetallic abrasive blasting material recovery process including an electrostatic separation step
US5098558A (en) * 1989-12-27 1992-03-24 Carpco, Inc. Adjustable feed accelerator for particle separator
US5397066A (en) * 1993-01-22 1995-03-14 Mobil Oil Corporation Separation of plastic materials
GB9412130D0 (en) * 1994-06-17 1994-08-10 British American Tobacco Co Electrostatic separation of materials from tobacco
US6225587B1 (en) * 1997-06-27 2001-05-01 E. Cordell Lundahl Electrostatic separation of chaff from grain
AU4230500A (en) * 1999-04-14 2000-11-14 Exportech Company, Inc. A method and apparatus for sorting particles with electric and magnetic forces
AUPQ902200A0 (en) * 2000-07-27 2000-08-17 Orekinetics Pty Ltd Method and apparatus for the electrostatic separation of particulate materials
JP2002126577A (en) * 2000-10-24 2002-05-08 Hitachi Zosen Corp Combination type selector
US6797908B2 (en) * 2002-04-10 2004-09-28 Outokumpu Oyj High-tension electrostatic classifier and separator, and associated method
WO2005011829A2 (en) * 2003-06-10 2005-02-10 Dongping Tao Electrostatic particle charger, electrostatic separation system, and related methods
US20080000811A1 (en) * 2004-04-07 2008-01-03 Selvey Bruce A Mineral Separation Plant Device
AU2009209037B2 (en) * 2008-02-01 2012-08-30 Eriez Manufacturing Co. High-tension electrostatic separator lifting electrode
NL2008319C2 (en) * 2012-02-20 2013-08-21 Emb Technology B V Powder purging apparatus and method.
CN113638080B (en) * 2021-07-14 2024-02-13 石河子大学 Electrostatic seed cotton foreign fiber removing modularized device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA681171A (en) * 1964-03-03 E. Barthelemy Roger Concentration of iron ore
US813063A (en) * 1903-04-18 1906-02-20 Henry M Sutton Process of separating substances of different dielectric capacities.
US805694A (en) * 1904-08-02 1905-11-28 Charles Henry Huff Method of electrostatic separation.
DE897682C (en) * 1951-09-30 1953-11-23 Metallgesellschaft Ag Device for the electrostatic separation of batches
US3031079A (en) * 1959-06-24 1962-04-24 Quaker Oats Co Electrostatic separation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129337A (en) * 1982-11-04 1984-05-16 Beloit Corp An electrical separator of the ion bombardment type
EP1354631A2 (en) * 2002-04-17 2003-10-22 Kenzo Takahashi Shredder dust electrostatic separation apparatus and method
EP1354631A3 (en) * 2002-04-17 2005-06-15 Kenzo Takahashi Shredder dust electrostatic separation apparatus and method
US7073736B2 (en) 2002-04-17 2006-07-11 Kenzo Takahashi Shredder dust electrostatic separation apparatus and method
US7153278B2 (en) 2003-08-22 2006-12-26 Kabushiki Kaisha Sato Sleep apnea syndrome diagnosing device and signal analyzer, and methods thereof

Also Published As

Publication number Publication date
SE311129B (en) 1969-06-02
DE1274532B (en) 1968-08-08
MY6900012A (en) 1969-12-31
US3322275A (en) 1967-05-30

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