Coal washing plant employing a feed equalizer and a critically d

Details Coal washing plant employing a feed equalizer and a critically d Coal washing plant employing a feed equalizer and a critically d

1978-07-19

1979-08-14

Halper, Robert

Classifying, separating, and assorting solids

Treatment subsequent

209211, 209498, B03B 700

Patent

active

041644670

ABSTRACT:
A single stage or multi-stage coal washing plant comprises a plurality of bunched cyclones supplied with raw crushed coal water slurry at high solids content and high velocity common from a tank through a distributor line that contains an equalizer for supplying equal quantities of solids to each cyclone through an inlet pipe having a critically dimensioned deflector that assists in maintaining streamlined laminar flow. A dewatering screen is used in combination with a centrifugal drier; the water separated from the refuse and clean coal is recycled to a silt pond. A make up water reservoir receives the overflowing water from the silt pond and a caustic soda tank supplies sodium hydroxide between the pump and the reservoir to neutralize acidity during continuous operation.

REFERENCES:
patent: 2119478 (1938-05-01), Whiton
patent: 2420392 (1947-05-01), Christensen
patent: 2471043 (1949-05-01), Schenck
patent: 2556496 (1951-06-01), Hickey
patent: 2656118 (1953-10-01), Chelminski
patent: 2823801 (1958-02-01), Strohl
patent: 2956347 (1960-10-01), Gordon
patent: 2970689 (1961-02-01), Chang
patent: 3372803 (1968-03-01), DeLisle
patent: 3578586 (1971-05-01), Gal
patent: 3617560 (1971-11-01), Deul
patent: 3737032 (1973-06-01), Burkitt
patent: 3926787 (1975-12-01), Gay

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