| 摘要 |
Pneumatic mixer for tanks, of the type comprising a perforated tube disposed on the bottom of the tank in which air can be delivered from a compressor in order to empty the tank, the said compressor being used for filling the tank by suction via safety devices, characterised in that the delivery pipe (9) connected to the perforated tube (2) is connected to the compressor (4) at a point located between the principal safety device (8) and the closest standby safety device (6), the device being completed by two valves (14) and (12) one of which (14) opposes delivery through the principal safety device (8) whilst the other (12) opposes suction through the delivery pipe (9). <IMAGE> |
