Patent ID: 8029607

Claim:
A system for cleaning multiple filters in a baghouse, the baghouse having a dirty gas chamber and a clean gas chamber, the filters separating the dirty gas chamber from the clean gas chamber, the filters filtering at least one substance from a gas as the gas passes from the dirty gas chamber to the clean gas chamber through the filters, the system including: a supply of compressed air; a blowpipe to distribute and direct the compressed air at the filters to dislodge a collected amount of the at least one substance from the filters, the blowpipe having a cross-sectional flow area through which the compressed air flows; and a valve interposed between the supply of compressed air and the blowpipe for controlling provision of the compressed air from the supply, the valve having a cross-sectional flow area through which the compressed gas flows, the cross-sectional area of the valve being smaller than the cross-sectional area of the blowpipe to provide for air pressure at the valve to be greater than air pressure at the blowpipe, wherein air pressure of the compressed air at the supply is greater than air pressure of the compressed air directed to the filters.