GB405606A - Improvements in or relating to froth flotation - Google Patents

Improvements in or relating to froth flotation

Info

Publication number
GB405606A
GB405606A GB1868332A GB1868332A GB405606A GB 405606 A GB405606 A GB 405606A GB 1868332 A GB1868332 A GB 1868332A GB 1868332 A GB1868332 A GB 1868332A GB 405606 A GB405606 A GB 405606A
Authority
GB
United Kingdom
Prior art keywords
cell
air
distributer
spitzkasten
air inlet
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
GB1868332A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1868332A priority Critical patent/GB405606A/en
Publication of GB405606A publication Critical patent/GB405606A/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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1462—Discharge mechanisms for the froth
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B03D1/245—Injecting gas through perforated or porous area

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Paper (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

405,606. Flotation apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, BULLOCK, W., Fraser & Chalmers Engineering Works, Erith, Kent, and JACKSON, A. B., c/o General Electric Co., Wembley, Middlesex. July 1, 1932, No. 18683. [Class 82 (ii).] In froth flotation apparatus of the airagitation type the air is introduced through an inlet in the lower part of the cell, a rotary air distributer is provided over the air inlet, and a spitzkasten is arranged at one side of the cell. The air distributer is arranged to rotate only at a rate so slow as not to produce frothing but sufficient to prevent clogging of the air inlet and the bottom of the cell, for example 20 revolutions per minute. Pulp is fed through a feed box 25 and pipe 26 into a cell 1 and is agitated by air introduced through an air inlet pipe 11 in the bottom of the cell supplied by a valved pipe 13 from a low-pressure main 12. Above the air inlet is a rotary air distributer 10, preferably of domed shape and perforated. The distributer shown consists of a series of conical surfaces 17-20, Fig. 4, connected by vertical surfaces 21-23 which are provided with equally spaced perforations. Four blades 17a are attached to the lowest conical surface 17 and a cylindrical screen 16 is provided at the bottom of the distributer. The air inlet pipe 11 rises through the bottom of the cell and terminates within the domed air distributer 10. A spitzkasten 2, Fig. 3, is arranged on one side of the cell, the pulp passing from the cell to the spitzkasten over a weir 3 adjustable by means of a gate 5 sliding over a perforated baffle plate 8. Froth is discharged from the spitzkasten by a rotating paddle 36 and pulp returns from the spitzkasten to the cell through a passage 4. Frothing in the cell 1 is controlled by a grid 29 arranged over the air distributer. A number of cells may be arranged in series, separated by adjustable gates 27 co-operating with fixed weirs 28. The depth of pulp and the flotation reagents used may vary in different cells.
GB1868332A 1932-07-01 1932-07-01 Improvements in or relating to froth flotation Expired GB405606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1868332A GB405606A (en) 1932-07-01 1932-07-01 Improvements in or relating to froth flotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1868332A GB405606A (en) 1932-07-01 1932-07-01 Improvements in or relating to froth flotation

Publications (1)

Publication Number Publication Date
GB405606A true GB405606A (en) 1934-02-01

Family

ID=10116621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1868332A Expired GB405606A (en) 1932-07-01 1932-07-01 Improvements in or relating to froth flotation

Country Status (1)

Country Link
GB (1) GB405606A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765078A (en) * 1950-11-25 1956-10-02 Combined Metals Reduction Comp Froth flotation machine with liquid level control weir
CN103977911A (en) * 2014-05-06 2014-08-13 江西稀有金属钨业控股集团有限公司 Gate plate mechanism of floatation machine and gate plate adjustment device of gate plate mechanism of floatation machine
CN113000228A (en) * 2021-01-28 2021-06-22 广东省大宝山矿业有限公司 Novel flotation machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765078A (en) * 1950-11-25 1956-10-02 Combined Metals Reduction Comp Froth flotation machine with liquid level control weir
CN103977911A (en) * 2014-05-06 2014-08-13 江西稀有金属钨业控股集团有限公司 Gate plate mechanism of floatation machine and gate plate adjustment device of gate plate mechanism of floatation machine
CN113000228A (en) * 2021-01-28 2021-06-22 广东省大宝山矿业有限公司 Novel flotation machine
CN113000228B (en) * 2021-01-28 2022-08-23 广东省大宝山矿业有限公司 Flotation machine

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