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CA2103752A1 - Particle sorting method - Google Patents

Particle sorting method

Info

Publication number
CA2103752A1
CA2103752A1 CA002103752A CA2103752A CA2103752A1 CA 2103752 A1 CA2103752 A1 CA 2103752A1 CA 002103752 A CA002103752 A CA 002103752A CA 2103752 A CA2103752 A CA 2103752A CA 2103752 A1 CA2103752 A1 CA 2103752A1
Authority
CA
Canada
Prior art keywords
particles
released
liquid
cooled
sorting method
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
CA002103752A
Other languages
French (fr)
Other versions
CA2103752C (en
Inventor
Victor Emul Ross
Charlie Maurice Levitt
Matthias Kofler
Bernard Alan Jennings
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.)
Element Six Pty Ltd
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 CA2103752A1 publication Critical patent/CA2103752A1/en
Application granted granted Critical
Publication of CA2103752C publication Critical patent/CA2103752C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Particulate material is sorted according to the thermal properties of the particles. The particles (24, 25) to be sorted are initially all cooled to a temperature below the freezing point of a liquid. The cooled particles are then placed on a surface (14) and contacted with the liquid. This has the result that the liquid freezes in the localities of the particles to adhere them to the surface. Heat is then to the particles and those particles (24) with higher thermal diffusivity gain heat more rapidly than other particles (25) and are released first from the surface. Finally, particles (24) which have been released from the surface and those particles (25) which have; not been released from the surface after a certain time lapse are collected separetely.
CA002103752A 1992-08-11 1993-08-10 Particle sorting method Expired - Fee Related CA2103752C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA92/6017 1992-08-11
ZA926017 1992-08-11
ZA92/8939 1992-11-19
ZA928939 1992-11-19

Publications (2)

Publication Number Publication Date
CA2103752A1 true CA2103752A1 (en) 1994-02-12
CA2103752C CA2103752C (en) 2004-07-13

Family

ID=27142177

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002103752A Expired - Fee Related CA2103752C (en) 1992-08-11 1993-08-10 Particle sorting method

Country Status (3)

Country Link
AU (1) AU654780B2 (en)
CA (1) CA2103752C (en)
GB (1) GB2269549B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA95785B (en) * 1994-02-21 1995-10-09 De Beers Ind Diamond Method and apparatus for sorting particulate material according to the thermal properties of the particles
DE10352526B4 (en) * 2003-11-05 2005-10-27 select Ingenieurgesellschaft für Optoelektronik, Bilderkennung und Qualitätsprüfung mbH Process for separating off-type additives from a product stream
CN102814318A (en) * 2012-09-07 2012-12-12 李泽晖 Solid waste sorting process based on thermal conductivity difference of different materials
CN104511428B (en) * 2015-01-14 2017-06-20 华能桐乡燃机热电有限责任公司 Thermal power plant pair roller type coal and gangue primary sorting equipment
CN107512519A (en) * 2017-09-11 2017-12-26 苏州立源信智能科技有限公司 A kind of on-line checking rejects formula directional transport apparatus
CN114887900B (en) * 2022-06-09 2023-12-22 洮南市胜恩泰机械制造有限公司 Corn ice particle separator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU576289B2 (en) * 1985-04-09 1988-08-18 De Beers Industrial Diamond Division (Proprietary) Limited Separation of diamonds from diamond bearing material
AU628133B2 (en) * 1989-02-20 1992-09-10 De Beers Industrial Diamond Division (Proprietary) Limited Sorting method and apparatus
AU632947B2 (en) * 1990-07-06 1993-01-14 De Beers Industrial Diamond Division (Proprietary) Limited Sorting method and apparatus

Also Published As

Publication number Publication date
GB2269549A (en) 1994-02-16
AU654780B2 (en) 1994-11-17
GB2269549B (en) 1995-08-23
CA2103752C (en) 2004-07-13
GB9316664D0 (en) 1993-09-29
AU4456793A (en) 1994-02-17

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Legal Events

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