DUST RECOVERY SYSTEM

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PROBLEM TO BE SOLVED : To provide a dust recovery system which efficiently recovers floating dust generated when a molded body is ground and facilitates the reuse of the recovered dust.SOLUTION : The dust recovery system has a grinding machine 11 for grinding the molded body molded of a powdery raw material made of a rare earth sintered magnet, and a dust collecting device 14 for separating and recovering dust from a grinding atmosphere containing dust at least floating in an atmosphere in the grinding machine 11 out of dust generated from the molded body by the grinding. The dust collecting device 14 has a filter unit 14a having a filter arranged in a casing, for filtering the grinding atmosphere containing the dust, and a blower unit 14b for sucking the dust in the grinding machine 11 together with the grinding atmosphere to the filter unit 14a. Further the dust collecting device 14 has a dust sweeping means for feeding compressed non-oxidizing gas into the filter unit 14a and sweeping the dust adhering to the filter.COPYRIGHT : (C)2006, JPO&NCIPI