B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/91
B01D 46/04 (2006.01)
Patent
CA 1047415
ABSTRACT Disclosed is a filtering device for removing particulate solids from a continuously flowing gas stream and which comprises a filter chamber that contains filter bags from which filtered gas is discharged into a plurality of plenum chambers arranged in a radial pattern around the axial center line of the filter. A pressure blower for a cleaning gas is located centrally with respect to the plenum chambers, and the casing of the blower is intermittently revolvable and has an outlet which sequentially falls into alignment with outlets in the plenum chambers through which filtered gas normally flows outward, but through which the cleaning gas is infected inwardly when aligned with the outlet of the blower casing, thereby providing means for intermittently reversing the gas flow in the filter bags and momentarily generating a pressure therein which is greater than exists in the filter chamber. This results in flex- ing of the bags and reverse flow of gas through their walls for dis- lodging filter cake which accumulates thereon.
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