Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Patent
1991-06-19
1992-04-28
Nozick, Bernard
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
1376252, 13762544, B01D 4600
Patent
active
051084732
ABSTRACT:
A dust collector based on filtration of dirty air in which the periodic backflushing of filtration elements is done by admitting atmospheric air at the filtration element exit port. The air is sucked backwards through the filtration element by the dust collector exit blower. Switching between normal usage and backflush is done by inserting a diverter valve containing a valve chamber between the filtration element discharge part and the clean air chamber. The porting of this valve chamber may be to either the atmosphere or to the clean air chamber, which being determined by twisting a shaft slightly less than 90 degrees, said shaft having valve closure plates attached to it at slightly greater than 90.degree. to each other. Twisting force need not be applied during normal operation nor to close off the atmospheric air port. Further, dust shields are provided around each filtration element to prevent backflushed dust moving directly to an adjacent filtration element.
REFERENCES:
patent: 2035747 (1936-03-01), Harris
patent: 2040930 (1936-05-01), Frisch
patent: 3541764 (1970-11-01), Astrom
patent: 3648442 (1972-03-01), Bourne
patent: 3726066 (1973-04-01), Colley et al.
patent: 4113449 (1978-09-01), Bundy
patent: 4161389 (1979-07-01), Staffin et al.
patent: 4218227 (1980-08-01), Frey
patent: 4292053 (1981-09-01), Remillieux
patent: 4345922 (1982-08-01), Grassel
patent: 4486201 (1984-12-01), Noguchi
Nozick Bernard
Thackrey James D.
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