Filter apparatus

Details Filter apparatus Filter apparatus

1984-05-29

1985-09-10

Spitzer, Robert

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

Selective units or compartments

210271, 210276, 210286, B01D 2324, B01D 2316

Patent

active

045404879

ABSTRACT:
A filter apparatus in which a generally horizontal bed of filter material is supported in a tank on a porous support above the bottom of the tank and is divided by spaced partitions into individual filter cells above the support and individual filter compartments below the support, and a carriage is mounted for movement along the filter bed and has a collector hood that moves along the top of the bed to collect backwash effluent therefrom and a backwash head arranged to direct backwash fluid into the compartments below the porous support to sequentially backwash the filter cells. A cell scavenging head is mounted on the carriage for movement along the filter bed and arranged to sequentially withdraw fluid from each filter compartment and down-flow scavenge and rinse the associated filter cell subsequent to backwashing of each filter cell.

REFERENCES:
patent: 2302449 (1942-11-01), Laughlin
patent: 2302450 (1942-11-01), Laughlin
patent: 2679319 (1954-05-01), Walker
patent: 3239061 (1966-03-01), Horning et al.
patent: 4133766 (1979-01-01), Adie
patent: 4152625 (1979-05-01), Meyers
patent: 4308141 (1981-12-01), Clendenen
patent: 4454034 (1984-06-01), Astrom et al.

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