| 摘要 |
PROBLEM TO BE SOLVED: To provide a blast device capable of effectively utilizing wind power energy discharged outside the device, when recovering dust by using a blower. SOLUTION: This blast device 100 has a blast chamber 10, a projection material tank 20, and a dust recovering device 30 having a dust collecting blower 63, and performs blast processing while circulating a projection material 1 via pipes 11a and 11b. A wind power generation mechanism 70 is connected to an exhaust duct 63a of the dust collecting blower 63. A wind power turbine can be suitably used as the wind power generation mechanism 70. A battery for storing electric power generated by the wind power generation mechanism 70 is also desirably connected. COPYRIGHT: (C)2007,JPO&INPIT
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