GB717906A - An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content - Google Patents

An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content

Info

Publication number
GB717906A
GB717906A GB2892150A GB2892150A GB717906A GB 717906 A GB717906 A GB 717906A GB 2892150 A GB2892150 A GB 2892150A GB 2892150 A GB2892150 A GB 2892150A GB 717906 A GB717906 A GB 717906A
Authority
GB
United Kingdom
Prior art keywords
coal
main flow
air
suspension
mixing
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
GB2892150A
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.)
ERIC ALFRED CHARLES CHAMBERLAI
National Coal Board
Original Assignee
ERIC ALFRED CHARLES CHAMBERLAI
National Coal Board
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 ERIC ALFRED CHARLES CHAMBERLAI, National Coal Board filed Critical ERIC ALFRED CHARLES CHAMBERLAI
Priority to GB2892150A priority Critical patent/GB717906A/en
Publication of GB717906A publication Critical patent/GB717906A/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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • 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
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

717,906. Cleaning coal. NATIONAL COAL BOARD, CHAMBERLAIN, E. A. C., WATERS. P. L., and ROBERTSON, W. S. Feb. 25, 1952 [Nov. 27, 1950], No. 28921/50. Class 82 (2) Coal is recovered from a water-borne suspension which may contain dirt by a method wherein a conditioning agent, a frothing agent and air are introduced into a main flow of the suspension, the main flow containing said agents and air is subjected to a mixing and agitating action, and a part only of the main flow is, then treated for removal of the froth formed thereby, a part of the aerated and agitated main flow variable at will being byepassed, without froth removal, to unite with the main flow prior to the mixing and agitating action. The air and agents may be introduced into the main flow immediately prior to the mixing and agitating action, and that part of the flow of the suspension from which the froth is removed is led into a quiescent zone above and in communication with a turbulent flow zone, the tailings being removed from the lower part of the latter. An apparatus suitable for use in the method comprises a tank a having an inlet and an outlet, a centrifugal pump e having an inflow pipe d and an outflow pipe c<SP>1</SP> delivering to the tank inlet, means j for delivering air and conditioning agents to the pump, and a valvecontrolled by-pass g between the inflow and outfiow pipes.
GB2892150A 1950-11-27 1950-11-27 An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content Expired GB717906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2892150A GB717906A (en) 1950-11-27 1950-11-27 An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2892150A GB717906A (en) 1950-11-27 1950-11-27 An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content

Publications (1)

Publication Number Publication Date
GB717906A true GB717906A (en) 1954-11-03

Family

ID=10283359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2892150A Expired GB717906A (en) 1950-11-27 1950-11-27 An improved method of and apparatus for use in the recovery of coal from the water borne suspension of coal and dirt which forms the residual product in washing and screening coal and in the treatment of coal to reduce the ash content

Country Status (1)

Country Link
GB (1) GB717906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067743B (en) * 1956-06-04 1959-10-29 Hubert Schranz Dr Ing Device for processing minerals and other substances using the flotation process
FR2536305A1 (en) * 1982-11-23 1984-05-25 Voith Gmbh PROCESS AND INSTALLATION FOR FLOATING SUSPENSION OF FIBERS
EP1978649A2 (en) 2007-04-04 2008-10-08 Zarlink Semiconductor Inc. Spectral Domain, Non-Linear Echo Cancellation Method in a Hands-Free Device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067743B (en) * 1956-06-04 1959-10-29 Hubert Schranz Dr Ing Device for processing minerals and other substances using the flotation process
FR2536305A1 (en) * 1982-11-23 1984-05-25 Voith Gmbh PROCESS AND INSTALLATION FOR FLOATING SUSPENSION OF FIBERS
EP1978649A2 (en) 2007-04-04 2008-10-08 Zarlink Semiconductor Inc. Spectral Domain, Non-Linear Echo Cancellation Method in a Hands-Free Device

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