Patent ID: 6899742
Filing Date: 2005-05-31
Classification: B01D

Abstract:
1. A cleaning arrangement for a filter element for removing particles suspended in a raw gas flow, said filter elements being disposed in a gas flow channel and including filter pockets, a blocking element arranged adjacent said filter elements for controlling a back-flushing gas flow through the pockets of the filter element, said blocking element comprising an elastic, thin-walled structure movably disposed on the downstream side of the filter element so as to extend across said gas flow channel directly above said filter element and having at least one opening of a shape corresponding in cross-section approximately to the openings of the filter element pockets, means including pivot flaps arranged downstream of the blocking element in spaced relationship therefrom for closing the gas flow channel, and a back-flushing air supply connected to the area of the gas flow channel between the blocking element and the pivot flaps for generating, with the pivot flaps closed, in the area downstream of the blocking element a gas pressure providing for back-flushing of the filter element pockets in succession as the blocking element with the at least one opening is moved across the filter element.