High pressure flat bed filter

Details High pressure flat bed filter High pressure flat bed filter

1981-04-10

1982-08-10

Cintins, Ivars C.

Liquid purification or separation

Filter

Movable medium

210398, B01D 2902

Patent

active

043437010

ABSTRACT:
In a filter device a filter media belt is positioned over a horizontal grid panel. Ends of the belt extend beyond the panel and each is attached to a rotatable forward and rear spool carried outside a cover which encases the grid panel. The cover defines an inner chamber above the grid panel which may be selectively sealed by a closure of doors located at each end of the cover. The cover, doors, and grid panel are sufficiently reinforced to allow the inner chamber to be partially filled with a batch of a liquid-particulate mixture and then pressurized to force the liquid portion through the filter belt and grid panel. During pressurization, longitudinal gasket devices maintain edges of the filter belt sealed against the grid panel. With the liquid portion removed, the particulate in the form of a cake remains on the filter belt. The chamber then is depressurized, the doors opened, and the belt moved forward by rotation of the forward spool. During this belt movement, the particulate is removed from the belt and the belt cleaned. The belt is then moved in a rearward direction to return the belt to its original position wherein the filter device is ready to process a further liquid-particulate mixture batch.

REFERENCES:
patent: 3333693 (1967-08-01), Hirs
patent: 3335862 (1967-08-01), Hirs
patent: 3933650 (1976-01-01), Lentz
patent: 4233157 (1980-11-01), Miller

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