Liquid purification or separation – Processes – Separating
Patent
1990-10-05
1992-03-10
Jones, W. Gary
Liquid purification or separation
Processes
Separating
210791, 210225, 210228, 210231, 210346, 210387, 210398, 100197, 100198, 100211, B01D 2534
Patent
active
050947605
ABSTRACT:
A pressurized liquid filter in which a series of spaced apart, vertically extending filter plates are mounted between the sides of housing, inflatable hose seals extending across each top entrance and bottom exit. Filter media strips are draped vertically into the spaces, each disposed over a perforated sheet forming the outer layer of either side of each filter plate. The space between each pair of filter plates is subdivided into two filtering chambers by a dual element dewatering diaphragm mounted in a frame disposed centrally in each space. Liquid slurry is introduced into each chamber under pressure, flow induced to pass through the filter media strips and passing into vertical passages in the filter plates and into collection troughs extending along each row of passages. The filter media strips are held by carrier belts mounted on powered rollers at the top of each pair of filter chambers to enable the strips to be lowered out of the chambers when the hose seals are retracted after each filtering cycle, and thereafter again raised into position, being scraped and washed prior to being raised into the chambers preparatory to another filter cycle.
REFERENCES:
patent: 3608734 (1971-09-01), Schneider
patent: 4430231 (1984-02-01), Bratten
patent: 4446020 (1984-05-01), Kurita
patent: 4568460 (1986-02-01), Bratten
patent: 4721040 (1988-01-01), Mau
patent: 4861494 (1989-08-01), Bratten
Benefiel John R.
Jones W. Gary
Savage Matthew O.
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