| 摘要 |
The powdery material is admitted in a propulsive jet of air under pressure, with the aid of a sieve with a cellular rotor. In order to avoid pulsations in the pipes and to ensure a complete emptying of the cells of the sieve, the latter is mounted immediately above a mixing chamber (6) in such a manner that the cells (4) of the rotor enter the said chamber (6) during the rotation of the rotor, at the moment of the release of the powdery material, while the inlet pipe (12) for the propulsion fluid is directed towards the cells (4) of the rotor during the passage of these in this chamber (6). <IMAGE> |
