Patent ID: 7320717

Claim:
A dust collecting filter for the filtering of gas containing solid particles, comprising: a first and a second inlet plenum for receiving said gas containing solid particles; a plurality of collateral inlet channels each having opposite first and second input extremities respectively connected to the first and second inlet plenums to receive said gas therefrom; a plurality of outlet channels each having a shared filtering boundary with at least one of said inlet channels, said filtering boundaries allowing said gas to flow from said inlet channels to corresponding outlet channels while substantially retaining the solid particles from said gas in the inlet channels, each of said outlet channels having a first output extremity; a first outlet plenum connected to the first output extremity of all of said outlet channels for outputting said gas therefrom; and cleaning means for cleaning the solid particles out of said inlet channels, said cleaning means comprising a reverse flow apparatus for circulating pressurized gas backwards through said dust collecting filter, said cleaning means further comprising first and second inlet valve means for sequentially blocking gas circulation through said first and second inlet plenums during operation of the reverse flow apparatus.