Cycle of filtration for liquids containing solids in suspension

Details Cycle of filtration for liquids containing solids in suspension Cycle of filtration for liquids containing solids in suspension

1991-06-20

1993-05-25

Dawson, Robert A.

Liquid purification or separation

Plural distinct separators

Filters

210327, 21033301, 210393, 210396, 210402, 210406, 210408, B01D 3306

Patent

active

052136850

ABSTRACT:
A cycle of filtration is realized for liquids containing solids in suspension and a rotary filter, suited to realize and cycle, where the filtration is carried out by a rotary drum fitted with a filtering surface (2), immersed in a tank containing the liquid to be filtered (26). The phase of the separation of the filtered material deposited on the filtering surface is preceeded by a phase of removal of the material from the filtering surface carried out by using air blown from a slit and it is followed by a phase of washing of the filtering surface, carried out by a plurality of sprayers.

REFERENCES:
patent: 3772684 (1973-03-01), Maestrelli
patent: 3919088 (1975-11-01), Doncer et al.
patent: 4151094 (1979-04-01), Wyman
patent: 4242204 (1980-12-01), Stigebrandt
patent: 4303524 (1981-12-01), Richards et al.
patent: 4836917 (1989-06-01), Tomita et al.
patent: 4869823 (1989-09-01), Otani et al.

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