| 摘要 |
PURPOSE:To simplify piping and decrease construction expenses, by jointly using a suction pipe partly for a pressure feed pipe when soiled mud or the like is sucked by a vacuum into a storage tank to internally pressurize the tank and discharge its contained material fed out under pressure. CONSTITUTION:At sucking operation, a Root's blower 5 is driven by an engine to generate a vacuum condition in a storage tank 13, permit soiled mud or the like to flow in with air through a suction pipe 14 into the tank 13 by press opening an open-close cap 15 and accumulate the mud. A residual fine impurity in an air flow is separated by a cyclone 3 and water slabbers 4, 6. Then in case of discharging a contained material in the tank 13, after selecting open-close valves 18, 20-23 to a closed position and 19 to an opening position, the tank 13 is dumped to open the valves 21-23, if compressed air from a compressor 11 is supplied to the bottom part of the tank 13, the tank 13 is internally pressurized while stirring and fludizing the contained material, if the valve 20 is selected to the open position, the material flows in through a branch pipe 16 and suction pipe 14 and is discharged under pressure. |
