EP0323447A2 - Séparateur pour minerais - Google Patents

Séparateur pour minerais Download PDF

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Publication number
EP0323447A2
EP0323447A2 EP89200433A EP89200433A EP0323447A2 EP 0323447 A2 EP0323447 A2 EP 0323447A2 EP 89200433 A EP89200433 A EP 89200433A EP 89200433 A EP89200433 A EP 89200433A EP 0323447 A2 EP0323447 A2 EP 0323447A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
slurry
particles
gravity
specific
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Withdrawn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
EP89200433A
Other languages
German (de)
English (en)
Other versions
EP0323447A3 (fr
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
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 filed Critical BTG International Ltd
Priority to EP19890200433 priority Critical patent/EP0323447A3/fr
Publication of EP0323447A2 publication Critical patent/EP0323447A2/fr
Publication of EP0323447A3 publication Critical patent/EP0323447A3/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • In collection separated materials may be collected separately yet at the same end of the cylinder, optionally with assistance by washing liquid, by a plurality of blades each extending axially from an end of the cylinder to a respective desired location, the blades and slurry applicator being arranged to rotate with the cylinder at a rotational speed different from, but within 5% (preferably within 1%) of, the cylinder's speed; the blades in such a version may be replaced by equivalent means, such as jets or curtains of liquid.
  • the shafts 2 and 11 may be driven from the same motor (instead of the separate motors described), with the shaft 11 being nonshaken and powered through a gearbox arranged for a small (e.g. 0.1%) rotational speed differential between the body 1 and the assembly 10). Whether the body or the assembly rotates the faster is an arbitrary matter of choice as long as the assembly is arranged to deliver slurry and to collect, separately, differentiated bands of slurry.
  • Protruding into the body 201 through its open narrower end is an assembly 210 of accelerator rings 211 and 212 and scraper vanes 213.
  • the whole assembly 210 is mounted on a shaft 202a driven through a gearbox by the shaft 202 and rotates together, with the same shake and in the same sense as the rotation of the shaft 202, but at 192 rpm.
  • the rings 211 and 212 are fed by stationary pipes with slurry A and wash water B respectively.
  • the rings 211 and 212 impart a rotational speed to the slurry and water, which flow through perforations in the rings into the body at substantially the latter's rotational speed and well distributed circumferentially.
  • a hollow vertical-axis cylinder 31 is set spinning about its axis.
  • the internal diameter being 0.3 to 3.0m and the speed of rotation being a modest 50 to 100 rpm, a centrifugal force of the order of 10g radially outwardly is experienced at the internal surface. This is small enough to allow the Earth's g to have significant effect.
  • the cylinder 31 is also subjected to circumferential vibration at 5 to 10Hz.
  • the cylinder 31 is formed with an inwardly curved lip 32, of radial extent 1 to 10mm. The lip could alternatively be a sharp flange, at 90° or otherwise to the cylinder wall.
EP19890200433 1986-05-22 1987-05-21 Séparateur pour minerais Withdrawn EP0323447A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19890200433 EP0323447A3 (fr) 1986-05-22 1987-05-21 Séparateur pour minerais

Applications Claiming Priority (3)

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

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP87304522A Division EP0247795B1 (fr) 1986-05-22 1987-05-21 Séparateur pour minerais
EP87304522.3 Division 1987-05-21

Publications (2)

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

Family

ID=26120971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890200433 Withdrawn EP0323447A3 (fr) 1986-05-22 1987-05-21 Séparateur pour minerais

Country Status (1)

Country Link
EP (1) EP0323447A3 (fr)

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 (de) * 1983-03-16 1984-09-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur nassmechanischen sortierung von feinkoernigen, mineralischen rohstoffen

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 (de) * 1983-03-16 1984-09-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur nassmechanischen sortierung von feinkoernigen, mineralischen rohstoffen

Also Published As

Publication number Publication date
EP0323447A3 (fr) 1993-11-24

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