Patent ID: 6319295
Filing Date: 2001-11-20
Classification: B01D

Abstract:
A method of cleaning a dust separator comprising a vertical raw gas shaft, a vertical clean gas shaft and groups of at least one filter element transversely extending into the raw gas shaft, which method comprises the steps of(a) forcing a raw gas stream to flow downwardly through the vertical raw gas shaft,(b) connecting the filter elements to the clean gas shaft to deflect the raw gas stream by the filter elements to the clean gas shaft while the filter elements separate dust particles from the raw gas stream and the dust particles are deposited on the filter elements,(c) successively subjecting one group after another to at least one pulse of compressed air to blow off the deposited dust particles into the raw gas shaft, and(d) disconnecting the group of at least one filter element which is subject to at least one pulse of compressed air from the clean gas shaft to interrupt the flow of the raw gas stream from the disconnected group to the clean gas shaft while the continuing downwardly flowing forced raw gas stream flows around the disconnected group.