| 摘要 |
PURPOSE:To improve the transportation efficiency by installing a pressure gauge apparatus for detecting the transportation pressure value, control valve installed in an air piping system, and controlling apparatus which controls the control valve described the above according to the detection signal by the pressue gauge apparatus. CONSTITUTION:A pressure gauge apparatus 16 detects the pressue in a blow tank 2, and when the transportation pressure on starting transportation is low, a control valve 14 is closed according to the detection value, in order to raise the pressure in the tank. When the transportation pressure is too high, the control valve 14 is opened to increase the amount of air supplied into a transportation pipe 13, and a controller 17 controls the transportation pressure to a constant value. Through the control described the above, the rise of the transportation pressure can be controlled in good response, and the transportation pressure is automatically controlled to a constant value, and the transportation efficiency is increased. |
