DUST COLLECTING APPARATUS EQUIPPED WITH A MOISTURE PERMEATION PREVENTIVE UNIT CAPABLE OF SECURING THE INNER PART OF A DUST COLLECTOR UNDER POSITIVE PRESSURES WHEN THE OPERATION OF THE DUST COLLECTOR IS STOPPED

摘要

PURPOSE: A dust collecting apparatus equipped with a moisture permeation preventive unit is provided to protect the inner part of a dust collector from external air although the operation of the dust collector is stopped.;CONSTITUTION: A dust collecting apparatus includes at least one of a cyclone part(110), a bag filter part(120), and an electric dust collecting part as a dust collecting part. A polluted gas introducing hole(140) and a discharging hole(170) are arranged at the dust collecting part. The dust collecting apparatus includes a sealing air supplying pipe(196) and a pressure gauge(123). One end part of the sealing air supplying pipe is in connection with a discharging fan(195). A sealing air supplying damper is interposed in the sealing air supplying pipe. Another end part of the sealing air supplying pipe is in connection with the dust collecting part. The pressure gauge measures the inner pressure of the dust collecting part. The discharging fan is operated according to the pressure of the pressure gauge. When the operation of a sucking fan is stopped, an introducing damper(142) and a discharging damper(172) are in closed positions.;COPYRIGHT KIPO 2012