METHOD OF AERODYNAMIC DUST REMOVAL FROM AIR ZONE OF DUMPING AND CONVEYANCE OF FINE-DISPERSE MATERIALS AND DEVICE FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: dust removal. SUBSTANCE: method of dust removal from disorganized spatial dust discharges in places of dumping and conveyance of fine-disperse materials by formation of a volume local zone not exceeding the width of the conveyer with a gradient of pressures directed inside this zone due to gas drawing through the air intake at flow rates exceeding the critical flow rate; the formed dust flow of loose material is caught by jet flows and directed to the aerodynamic dust-collecting module, after which it is separated again, compared and through the dust-settling hopper returned to the conveyer, and undercleaned air after intake from the zone of spatial dust formation is directed as an organized flow to the closed duct of subsequent dust removal also on the basis of action of the aerodynamic dust-collecting modules. The device uses an extended dumping chute, movable conveyer, aerodynamic dust-collecting modules, dust-settling hoppers and a gas-drawing apparatus; an air intake changing into a gas conduit is installed within the width of the chute, it is connected to the inlet of the aerodynamic dust-collecting module, which is connected to the dust-settling hopper. EFFECT: enhanced efficiency. 3 cl, 1 dwg