METHOD AND APPARATUS FOR DUST COLLECTION OF GASES BY FILTRATION WITH CLEANING OF THE FILTER BY SUCTION AND APPLICATION TO COMBUSTION GASES

摘要

Method and apparatus for dusting off gases by filtration and cleaning of filter by aspiration and application thereof to combustion gases. This invention relates to the filtration of dust loaded gases, in particular, combustion gases in the hot state. It consists of passing gases to be dusted off from top to bottom over a bed of pulverulent material, in particular, a sand bed and cleaning the upper layer of said bed by aspiration of dusts deposited thereon. This invention is particularly adapted for dusting off combustion gases from boilers or thermal power stations or gases to be supplied to gas turbines.