Method and apparatus for beneficiating coal

Details Method and apparatus for beneficiating coal Method and apparatus for beneficiating coal

1980-11-14

1982-04-06

Hill, Ralph J.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Aqueous suspension and sifting

209 44, 2091725, 209452, B03B 502, B03B 530

Patent

active

043234496

ABSTRACT:
A method and apparatus for beneficiating a mixture of coal and a denser material are provided. The coal and ash mixture and a liquid medium are deposited into a rotating, sloping barrel having internal spiral flights and foraminous end sections. Coal and medium travel downwardly and the denser material is screwed upwardly. The positions of deposit of the mixture and the medium are adjustable, as are the rates of rotation of the barrel and the angle of the barrel.

REFERENCES:
patent: 299337 (1884-05-01), Brotherhood
patent: 3970547 (1976-07-01), Theodore et al.
patent: 4083776 (1978-04-01), Shimoiizaka
patent: 4159242 (1979-06-01), Walker
patent: 4203831 (1980-05-01), Parnaby

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