Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Patent
1984-10-09
1987-07-21
Spitzer, Robert
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
55311, 55432, 55438, 55459R, 55480, 55502, B01D 4604, B01D 2938
Patent
active
046816097
ABSTRACT:
Single and multiple porous media impingement type air filter elements are disposed in filter housings which provide access to the filter elements from top opening doors or plenums in the housing for service or repair of the elements. Housing sections defining the plenums are provided with mechanism to lift and swing the housing sections clear of the filter opening, and the housing sections are movable to relieve excess working pressure differentials across the filter element. In two embodiments the filter elements are each in sealing engagement with a shield which is also sealingly engaged with a top wall or door of the filter housing to minimize contamination of personnel servicing or replacing the filter elements. Clean air is discharged through a downwardly extending clean air flow tube into a discharge plenum or chamber and particulate material separated from the air flow stream falls into a material collecting hopper portion which may be defined in part by a sloping wall separating the clean air flow chamber from the particulate material collection chamber. Filter element backflushing air control valves may be located in the bottom of the filter housing to enhance the accessibility of the filter elements from the top of the housing and to minimize overall height of the filter apparatus.
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