| 摘要 |
PURPOSE: An improved sand blast apparatus for reusing abrasive materials is provided to improve the recovery rate of abrasive materials by recovering abrasive materials with a cyclone and an electromagnet. CONSTITUTION: A sand blast apparatus is composed of a grinding tank(100), an injection nozzle(102) installed in the grinding tank and injecting abrasive materials(A), a pair of first electromagnets(161), a cyclone(110) for separating the abrasive materials from ground materials(B), a first recovery tank(120) for collecting the abrasive materials, a second electromagnet(162) for separating the abrasive materials, a second recovery tank(130) for collecting the abrasive materials, and a waste tank(140) for collecting the ground materials. The first electromagnets are attached to the outside of the grinding tank, and prevent the abrasive materials from remaining on the surface of a board(101).
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