| 摘要 |
PURPOSE: A vacuum dust collecting apparatus using a water ejector is provided to reduce water consumption by precipitating dust at the lower side of a collecting tank and using overlaying water as supplementing water for a circulating water tank. CONSTITUTION: A circulating water tank(100), a pump(300), a collecting tank(400), a spray nozzle(600), and an auxiliary collecting tank(400a) are prepared. Water is filled in the circulating water tank and is supplemented through a supplementing water line(110) arranged at the upper side of the circulating water tank. The pump generates vacuum by rapidly spraying water through the nozzle of an ejector(200) and is in connection with the circulating water tank and the ejector. The collecting tank in hales dust. The spray nozzle sprays water in order to precipitate the dust. The auxiliary collecting tank inhales the dust under a vacuum condition.
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