Rotary pressure precoat filter with internal valving arrangement

Details Rotary pressure precoat filter with internal valving arrangement Rotary pressure precoat filter with internal valving arrangement

1977-10-27

1979-09-18

Spitzer, Robert H.

Liquid purification or separation

With precoat adding or applying means

210404, B01D 3308

Patent

active

041682343

ABSTRACT:
A rotary pressure precoat filter system is described containing an interior valving arrangement which increases the gas flow resistance through that region of the precoat from which solids have been removed but which has not yet been reimmersed in the slurry to be filtered. The valving system comprises a fixed baffle positioned adjacent to the outlet end of conduits passing from the collection chambers inside the surface of the filter drum to the interior of a hollow central shaft, which is journaled in bearings outside the pressure vessel and which provides direct access to a receiver also outside the pressure vessel.

REFERENCES:
patent: 2107664 (1938-02-01), Gee
patent: 2174748 (1939-10-01), Hunter
patent: 2655265 (1953-10-01), Little
patent: 3029948 (1962-04-01), McKay
patent: 3245536 (1966-04-01), McKay
patent: 3520410 (1970-07-01), Hutto, Jr.
Smith et al., "Pressure Filtration of Liquified Coal," 8/3/77, 4th Annual Int. Cong. on Coal Gasification, Pittsburgh, Pa.

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