GB443837A - Improvements in or relating to the separation of coal and like materials - Google Patents

Improvements in or relating to the separation of coal and like materials

Info

Publication number
GB443837A
GB443837A GB2245634A GB2245634A GB443837A GB 443837 A GB443837 A GB 443837A GB 2245634 A GB2245634 A GB 2245634A GB 2245634 A GB2245634 A GB 2245634A GB 443837 A GB443837 A GB 443837A
Authority
GB
United Kingdom
Prior art keywords
coal
shale
water
weir
fine
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
GB2245634A
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 GB2245634A priority Critical patent/GB443837A/en
Publication of GB443837A publication Critical patent/GB443837A/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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623—Upward current classifiers

Landscapes

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

Abstract

443,837. Separating coal and shale. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WOOD, H. L., Fraser & Chalmers Engineering Works, Erith, Kent. Aug. 1, 1934, No. 22456. [Class 82 (ii)] Fine particles of coal are separated from fine particles of shale by introducing the mixture into water which is agitated, for example by an upward current of water, so that some of the fine shale particles are maintained in suspension and form a fluid mass on which the coal floats, the agitation being insufficient to carry the small particles of shale away with the floated coal. The separation may be carried out in a tank 1 provided with a feed launder 2, a discharge weir 3, and a refuse outlet 4. The water in the tank is agitated by an upward flow produced by downwardly directed jets of water issuing from horizontal pipes 11 located beneath a sloping screen 10 forming the bottom of the tank. The pipes are arranged in a box 14 which is packed with gravel and provided with partitions 15 separating the pipes. The water supply to each pipe is independently controlled. The height of the weir 3 and the size of the refuse opening 4, which leads to a refuse extractor 17, can be adjusted by sliding plates 6 and 8 respectively. The velocity of the upward current is adjusted so that the small shale particles form a fluid mass extending up to just below the weir 3 ; the coal floats on this fluid mass and passes over the weir. The height of the fluid mass is controlled by varying the upward current and by varying the rate at which shale is removed through the outlet 4. The material treated may be fine material separated from coal prior to treatment by the sand-flotation process, the washed fine coal obtained being mixed with the coarser coal separated by sand-flotation. The Provisional Specification states that ores and like materials may also be treated. Specifications 119,038, [Class 82 (ii)], and 403,150 are referred to.
GB2245634A 1934-08-01 1934-08-01 Improvements in or relating to the separation of coal and like materials Expired GB443837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2245634A GB443837A (en) 1934-08-01 1934-08-01 Improvements in or relating to the separation of coal and like materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2245634A GB443837A (en) 1934-08-01 1934-08-01 Improvements in or relating to the separation of coal and like materials

Publications (1)

Publication Number Publication Date
GB443837A true GB443837A (en) 1936-03-02

Family

ID=10179641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2245634A Expired GB443837A (en) 1934-08-01 1934-08-01 Improvements in or relating to the separation of coal and like materials

Country Status (1)

Country Link
GB (1) GB443837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497790A (en) * 1943-11-09 1950-02-14 Valenciennoise De Gestion Soc Sink and float process for the separation of coal from its impurities
US2620069A (en) * 1948-10-19 1952-12-02 Karl R Wendt Method of and apparatus for separating materials of different specific gravity
DE1184711B (en) * 1955-10-17 1965-01-07 Edmond Harvengt Floating sink separator with conical separating container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497790A (en) * 1943-11-09 1950-02-14 Valenciennoise De Gestion Soc Sink and float process for the separation of coal from its impurities
US2620069A (en) * 1948-10-19 1952-12-02 Karl R Wendt Method of and apparatus for separating materials of different specific gravity
DE1184711B (en) * 1955-10-17 1965-01-07 Edmond Harvengt Floating sink separator with conical separating container

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