| 摘要 |
PURPOSE: A vacuum suction device is provided to store the liquid of mixed foreign materials in a reservoir tank and discharge dust and harmful gas, and separately discharge the liquid in the reservoir tank with a drain pump. CONSTITUTION: A vacuum suction device, which draws in mixed foreign materials through a suction pipe(2) by a vacuum pump(1), comprises a reservoir tank(3) which is installed between the vacuum pump and the suction pipe to store a liquid. The reservoir tank is equipped with a drain pump for discharging a fluid stored in the reservoir tank to outside. A flexible connection pipe(6) is interposed between the reservoir tank and the vacuum pump. Wheels for movement are installed on the bottom of the reservoir tank.
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