| 摘要 |
PROBLEM TO BE SOLVED: To reliably discharge the flake-like lightweight powder and granular material stored in a tank 3 of a powder and granular material collector 2. SOLUTION: A first selector valve 31 is switched to a state B, a blower 3 is changed over to a working state at a high level, and an opening/closing lid 12 is opened. As a result, the gas is ejected from a gas outlet 10 in the reverse direction, and the lightweight powder and granular material stored in a filter member 14 is fed to a tank body 22 by the ejected gas.
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