Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Patent
1994-01-11
1995-07-11
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
210264, 210275, B01D 2446
Patent
active
054318092
ABSTRACT:
A traveling bridge filtration system includes a tank configured to include a plurality of side-by-side filter cells all extending longitudinally in a first direction, and a common filtrate channel extending longitudinally in a second direction perpendicular to the first direction. Each filter cell has an outlet extending through an interior wall of the tank thereby establishing fluid communication with the filtrate channel. A traveling bridge is mounted atop the tank and movable from cell to cell in the second direction. A backwash pump, having an inlet and a discharge pipe connected to a backwash shoe, is pivotally suspended from the bridge within the filtrate channel. A fluid operated bellows is used for moving the backwash shoe selectively into sealing engagement with a tank wall surface surrounding one of the filter cell outlets in response to actuation of the backwash pump. A related method of use is also disclosed.
REFERENCES:
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patent: 4152265 (1979-05-01), Meyers
patent: 4450077 (1984-05-01), Black et al.
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patent: 4540487 (1985-09-01), Johnson et al.
patent: 4859330 (1989-08-01), Pauwels
patent: 4957631 (1990-09-01), Pauwels
patent: 4988439 (1991-01-01), Medders
patent: 5078873 (1992-01-01), Black et al.
Cintins Ivars
Davis Water & Waste Industries, Inc.
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