Pulsed backflush air filter

Details Pulsed backflush air filter Pulsed backflush air filter

B - Operations, Transporting

01

D

183/96

B01D 46/04 (2006.01)

Patent

CA 1093980

Abstract A cleaning system for sleeve-type air filters featur- ing top removal of sleeves of the filtering media and increased filtering capicity, using sharply pulsed back- flushing air of short duration from a single source for cleaning the sleeves which requires substantially less power and simpler mechanical structure than conventional filters of similar capacity Filter sleeves depend from clean air outlet ports which are arrayed in concentric rings in a porting plate in closely-spaced relation one from the next at uniform circular and radial pitches allowing more sleeves to be packed in the porting plate which separates the clean air section from the dusty air section of said filter and more capacity from the same size filter than was herotofore possible. A tank is reptitively charged with air to a set pressure by a pump and the pressurized air is released by a pulse generating valve for distribution of the air to said sleeves for backflushing at essentially random frequency. Each sleeve in the filter receives, on the average, one pulse of cleaning air every 2 to 5 minutes.

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