GB650025A - Improvements in or relating to methods of cleaning coal - Google Patents

Improvements in or relating to methods of cleaning coal

Info

Publication number
GB650025A
GB650025A GB37189/46A GB3718946A GB650025A GB 650025 A GB650025 A GB 650025A GB 37189/46 A GB37189/46 A GB 37189/46A GB 3718946 A GB3718946 A GB 3718946A GB 650025 A GB650025 A GB 650025A
Authority
GB
United Kingdom
Prior art keywords
pair
maintained
passing
closer proximity
unidirectional potential
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
GB37189/46A
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.)
Quaker Oats Co
Original Assignee
Quaker Oats Co
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 Quaker Oats Co filed Critical Quaker Oats Co
Publication of GB650025A publication Critical patent/GB650025A/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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/02—Separators
    • B03C7/06—Separators with cylindrical material carriers

Landscapes

  • Electrostatic Separation (AREA)

Abstract

650,025. Electrostatic separators. QUAKER OATS CO. Dec. 17, 1946, No. 37189. Convention date, Oct. 11, 1945. [Class 72] An electrostatic method of cleaning coal comprises the steps of passing the material between and in closer proximity to one (38) than the other of a first pair of spaced electrodes, Fig. 6, which are maintained at a suitable difference of unidirectional potential, and passing at least one of the separated portions between and in closer proximity to one (40) than the other of a further pair of spaced electrodes which are maintained at a unidirectional potential difference opposite in their respective polarities to those of the first pair to produce a further separation. The electrodes preferably are continuously rotated; whilst the raw coal may be subject to the preliminary steps, Fig. 1, (not shown), of contact with a rotating knurled or otherwise roughened drum 12, and surface drying by means of a current of heated gas. U.S.A. Specifications 1,152,442, 1,153,182 and 2,428,224 are referred to. Reference has been directed by the Comptroller to Specification 519,817.
GB37189/46A 1945-10-11 1946-12-17 Improvements in or relating to methods of cleaning coal Expired GB650025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US650025XA 1945-10-11 1945-10-11

Publications (1)

Publication Number Publication Date
GB650025A true GB650025A (en) 1951-02-14

Family

ID=22059685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37189/46A Expired GB650025A (en) 1945-10-11 1946-12-17 Improvements in or relating to methods of cleaning coal

Country Status (1)

Country Link
GB (1) GB650025A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825078A (en) * 1953-04-07 1958-03-04 Western Electric Co Electrostatic apparatus for separating articles
US2832977A (en) * 1952-02-05 1958-05-06 Haloid Co Electrostatic cleaning device
US2848727A (en) * 1953-04-07 1958-08-26 Western Electric Co Apparatus for separating articles
US3031079A (en) * 1959-06-24 1962-04-24 Quaker Oats Co Electrostatic separation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832977A (en) * 1952-02-05 1958-05-06 Haloid Co Electrostatic cleaning device
US2825078A (en) * 1953-04-07 1958-03-04 Western Electric Co Electrostatic apparatus for separating articles
US2848727A (en) * 1953-04-07 1958-08-26 Western Electric Co Apparatus for separating articles
US3031079A (en) * 1959-06-24 1962-04-24 Quaker Oats Co Electrostatic separation

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