Filtration apparatus

Details Filtration apparatus Filtration apparatus

1981-11-06

1983-06-28

Adee, John

Liquid purification or separation

Filter

Movable medium

210541, B01D 2902

Patent

active

043904289

ABSTRACT:
Contaminated liquid is filtered through a conveyor-driven endless loop filter belt which surrounds a filter box submerged in a tank of the liquid to be filtered. The liquid is caused to flow through the filter belt and into the perforated upper and lower walls of the box by means of pump-induced static pressure differential. After predetermined build-up of filter cake on the filter web over the filter box inlets, control means index the filter web to bring clean web into registry with the filter box inlets. Improved means for preventing contaminated liquid from by-passing the longitudinal edges of the filter belt comprise longitudinally extending expandable tubing which can be pressurized to firmly clamp the filter belt edges against a rigid reaction surface.

REFERENCES:
patent: 3335862 (1967-08-01), Hirs
patent: 3706378 (1972-12-01), Markwick
patent: 3899426 (1975-08-01), Hirs

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