| 摘要 |
PURPOSE: A garnet blasting device is provided to reduce the number of cleaning of a filtering device since most of dust is filtered at a dust discharge trap and fine dust is filtered at a filtering device. CONSTITUTION: A garnet blasting device comprises a tank(10), a dust discharge trap(40), a filtering device, an air ejector, and a garnet jetting nozzle(72). The tank sucks and stores garnet through a suction pipe(14). The internal space of the dust discharge trap is connected to the middle part of a first communicating pipe(21) connected to the internal upper space of the tank. The dust discharge trap has an air path and a dust ejecting port(41). The air ejector is connected to the filtering device by a second communicating pipe.
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