| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray apparatus capable of efficiently collecting dust produced in a wide range while securing safety. SOLUTION: The spray apparatus 10 is for spraying mist in a vortex state toward a spray objective material and is provided with a plurality of spray nozzles 38 rotated on one and the same circle around one rotary axis, a gas liquid supply part 16 for supplying a mixed body of pressurized air with pressurized water to the spray nozzles 38 and a rotary drive part 18 for rotating the spray nozzles 38 at a prescribed rotating speed. The plurality of the spray nozzles 38 are rotated on one and the same circle by the rotary drive part 18 to produce vortex flow in a zone where the mist sprayed from each nozzle 38 is mixed and the dust is involved in the mist to be efficiently collected in the vortex flow zone S. COPYRIGHT: (C)2007,JPO&INPIT
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