| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that there is a large subject, such that a mixture of air and an abrasive material is continuously ejected to the outside from a nozzle using an air compressor, in conventional industrial sandblasting work and a single or a plurality of compressors are used or a compressed air storage tank or the like is used in order to solve this subject to perform grinding work while ensuring necessary air quantity but compressed air is discharged inefficiently to the atmosphere. SOLUTION: A blower is used in place of an air compressor and a new mechanism nozzle, wherein a plurality of air accelerating and regulating mechanisms are combined, is used to enable the manufacture of a new abrasive material projection apparatus enabling the marked enhancement of efficiency, the reduction of noise and energy saving.
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