EP0323447A3 - Minerals separator - Google Patents

Minerals separator Download PDF

Info

Publication number
EP0323447A3
EP0323447A3 EP19890200433 EP89200433A EP0323447A3 EP 0323447 A3 EP0323447 A3 EP 0323447A3 EP 19890200433 EP19890200433 EP 19890200433 EP 89200433 A EP89200433 A EP 89200433A EP 0323447 A3 EP0323447 A3 EP 0323447A3
Authority
EP
European Patent Office
Prior art keywords
gravity
cylinder
particles
specific
slurry
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.)
Withdrawn
Application number
EP19890200433
Other languages
German (de)
French (fr)
Other versions
EP0323447A2 (en
Inventor
Richard Henry Mozley
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.)
BTG International Ltd
Original Assignee
BTG International Ltd
National Research Development Corp UK
British Technology Group 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
Priority claimed from GB868612498A external-priority patent/GB8612498D0/en
Application filed by BTG International Ltd, National Research Development Corp UK, British Technology Group Ltd filed Critical BTG International Ltd
Priority to EP19890200433 priority Critical patent/EP0323447A3/en
Publication of EP0323447A2 publication Critical patent/EP0323447A2/en
Publication of EP0323447A3 publication Critical patent/EP0323447A3/en
Withdrawn legal-status Critical Current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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • 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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment

Landscapes

  • Centrifugal Separators (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

To separate minerals, they are made up into a slurry A applied via a distributor ring 211 to a hollow tapered cylinder spinning on its axis to generate 10g centrifugal force.
The cylinder widens at a half-angle of 1°, and its axis is inclined at 2° upwardly in the direction of widening.
A film of slurry is held centrifugally to the internal surface of the cylinder. The denser (i.e. higher specific gravity) particles in the slurry tend to move preferentially radially outwardly (centrifugally) and to move downwardly in the boundary layer (under Earth's gravity). The action of the washing water B is to displace waste accidentally entrained with the higher-specific-gravity-particles.
The valuable higher-specific-gravity particles overflow downwardly continuously at C and are collected. The washing water and lower-specific-gravity waste particles move upwardly towards the top edge of the cylinder at C, but are repeatedly swept downwardly by staggered vanes 213 rotating faster than the cylinder. The water and light particles therefore overflow at C but only after numerous 'attempts' each of which improves the reliability of the separation.
EP19890200433 1986-05-22 1987-05-21 Minerals separator Withdrawn EP0323447A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19890200433 EP0323447A3 (en) 1986-05-22 1987-05-21 Minerals separator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8612498 1986-05-22
GB868612498A GB8612498D0 (en) 1986-05-22 1986-05-22 Minerals separator
EP19890200433 EP0323447A3 (en) 1986-05-22 1987-05-21 Minerals separator

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP87304522A Division EP0247795B1 (en) 1986-05-22 1987-05-21 Minerals separator
EP87304522.3 Division 1987-05-21

Publications (2)

Publication Number Publication Date
EP0323447A2 EP0323447A2 (en) 1989-07-05
EP0323447A3 true EP0323447A3 (en) 1993-11-24

Family

ID=26120971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890200433 Withdrawn EP0323447A3 (en) 1986-05-22 1987-05-21 Minerals separator

Country Status (1)

Country Link
EP (1) EP0323447A3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB217264A (en) * 1923-10-20 1924-06-19 Lilleshall Company Ltd A new or improved centrifugal filter or separator
US2076516A (en) * 1934-04-14 1937-04-06 Western States Machine Co Discharger for centrifugal machines
US3754660A (en) * 1971-07-28 1973-08-28 H Cottrell Apparatus for extracting fluid from pulp
GB2003757A (en) * 1977-09-06 1979-03-21 Kalin E Centrifuge
DE3309385A1 (en) * 1983-03-16 1984-09-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Process and apparatus for wet mechanical sorting of fine-grained mineral raw materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB217264A (en) * 1923-10-20 1924-06-19 Lilleshall Company Ltd A new or improved centrifugal filter or separator
US2076516A (en) * 1934-04-14 1937-04-06 Western States Machine Co Discharger for centrifugal machines
US3754660A (en) * 1971-07-28 1973-08-28 H Cottrell Apparatus for extracting fluid from pulp
GB2003757A (en) * 1977-09-06 1979-03-21 Kalin E Centrifuge
DE3309385A1 (en) * 1983-03-16 1984-09-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Process and apparatus for wet mechanical sorting of fine-grained mineral raw materials

Also Published As

Publication number Publication date
EP0323447A2 (en) 1989-07-05

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