Patent ID: 8021467

Claim:
A process of cleaning a filtration material of a gas filter, wherein the gas filter includes a plurality of filter segments which are arranged next to one another in a casing and a slide plate, comprising the steps of: closing a filter segment of the plurality of filter segments from a normal gas stream by moving the slide plate, wherein the slide plate covers a nozzle pipe of the closed filter segment and wherein when the slide plate is moved to close the filter segment the slide plate opens a filter segment of the plurality of filter segments that was previously closed; providing a cleaning gas stream through the filtration material of the closed filter segment which is reverse to a normal particle-laden gas flow to remove a main part of particles in a form of a filter-cake; providing a shock wave by a compressed gas impulse from the nozzle pipe to achieve a cleaning vibration to the filtration material of the closed filter segment to provide a final cleaning of the closed filter segment; and shutting off the cleaning gas stream.