Continuous centrifugal separation of coal from sulfur compounds

Details Continuous centrifugal separation of coal from sulfur compounds Continuous centrifugal separation of coal from sulfur compounds

1981-01-30

1982-12-28

Jenkins, Robert W.

Imperforate bowl: centrifugal separators

Process

494 42, 494 65, 494 74, B04B 1100

Patent

active

043657419

ABSTRACT:
A centrifuge method and apparatus particularly useful for desulfurizing slurry coal, and for removing mineral impurities therefrom, so that such coal may be more economically transported in pipeline systems. A slurry of finely-divided coal and impurities is forced upwardly at a predetermined velocity into the chamber of a rotating centrifuge rotor having frusto-conical upper and lower inner surfaces disposed with their apexes meeting along an intermediate apex line. Rotational movement is imparted to the upwardly-directed stream, and coal particles (i.e., particles of lower specific gravity) follow a trajectory leading them into contact with the upper frusto-conical surface, whereas impurities (particles of greater specific gravity) follow a trajectory leading to the lower frusto-conical surface. The respective fractions are directed along such surfaces in opposite axial directions under the influence of centrifugal force, and outlets provided at the upper and lower ends of the rotor allow for the separate discharge of such fractions during continuous operation of the centrifuge.

REFERENCES:
patent: 24714 (1859-07-01), Booth
patent: 1067766 (1913-07-01), Howard
patent: 1358375 (1920-11-01), Koch
patent: 1517509 (1924-12-01), Hokanson
patent: 1613579 (1927-01-01), Hinchley
patent: 3799431 (1974-03-01), Lavanchy

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