Apparatus for processing coal

Details Apparatus for processing coal Apparatus for processing coal

1982-11-04

1985-02-12

Goldberg, Howard N.

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 57, 241 60, 241 65, 241 76, 241 77, 241 79, 241 81, B02C 2324

Patent

active

044986335

ABSTRACT:
Apparatus for processing coal to prevent the creation of extreme fines and to extract pyrites from the principal coal fractions in which there are two air circulating circuits having processing components which cooperate in their respective circuits to result initially in substantial extraction of fines in the first circuit while releasing principal granulated coal fractions and pyrites to the second circuit where specific gravity separation of the pyrites and principal coal fractions occur. The apparatus includes a source of drying heat added to the air moving in the circuits and delivered at the places where surface moisture drying is most effective. Furthermore, the apparatus is operated so as to reduce coal to a desired size without creating an excessive volume of extreme fines, to separate pyrites and hard to grind components by specific gravity in a region where fines are not present, and to use the extreme fines as a source of fuel to generate drying heat.

REFERENCES:
patent: 2932460 (1960-04-01), Petersen
patent: 3794251 (1974-02-01), Williams
patent: 3960714 (1976-06-01), Strauss

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