| 摘要 |
A processing tower for powdery or granular material has an upper fluidised-bed or spouted-bed chamber (1) and a lower chamber (2; 3). The upper chamber (1) has an inlet (15) and an outlet (5) for the material to be processed, and pneumatic means (7) for movement of the material from the inlet (15) to the outlet (5). These pneumatic means (7) comprise a ventilation surface (6) with holes which covers the upper (1) towards the bottom. The lower chamber (2; 3) comprises a first space (2) intended for flowthrough of the gas fluidising the fluidised or spouted bed and a second space (3 which serves for the processing of the material and into which the outlet (5) preferably opens. The upper chamber (1) and the lower chamber (2; 3) are interconnected via the ventilation surface. The inlet (15) is offset in relation to a plane determined by the central axis of the processing tower and the outlet. <IMAGE> |
