Liquid purification or separation – Filter – Movable medium
Patent
1985-07-03
1987-06-09
Fisher, Richard V.
Liquid purification or separation
Filter
Movable medium
210406, 162272, 162364, B01D 3304
Patent
active
046718761
ABSTRACT:
A belt filter device mounted on a frame carrying an endless conveyor belt has a casing arranged below an upper run of the belt, and application of subatmospheric pressure to interior regions of the casing causes liquid to be withdrawn from material lying on the conveyor belt through drainage holes provided in the belt. The casing is pivotal with respect to the frame between a first, operational position and a second, cleaning position, and a separating means shifts the casing away from a cover or support means simultaneously with movement of the casing from its operational position toward its position for cleaning. The cover carries a pair of spaced wear strips for support of the belt portion above an open top of the casing, to enable the dimensions of the open casing top to be substantially larger than the gap between the wear strips to facilitate ready access into interior regions of the casing when the latter is in its position for cleaning notwithstanding the fact that the wear strips are closely spaced to adquately support the belt portion lying directly above the open casing top.
REFERENCES:
patent: 2377252 (1945-05-01), Lehrecke
patent: 3940308 (1976-02-01), Blanchfield
patent: 4011131 (1977-03-01), Nicholson
patent: 4080298 (1978-03-01), Nordengren
patent: 4265765 (1981-05-01), Gallottini
patent: 4338193 (1982-07-01), Lautrette et al.
patent: 4595501 (1986-06-01), Queyroix
B.V. Machinefabriek v/h Pannevis & Zn.
Evans Linda S.
Fisher Richard V.
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