| 摘要 |
The plant has drying surfaces (4) which are superposed and heated by heating plattens (3) arranged throughout the depth of a chamber (1); the upper section of a belt conveyor supported by rollers (6, 7) is guided by said surfaces (4). The material to be dried is uniformly spread throughout the width of the band (5) by branchings (10) of a conduit (9) supplied by a dosing device, and this process is carried out until all the drying surfaces (4) are covered with material; at this point, the bands (5) of the conveyor as well as the dosing are stopped, the drying then taking place on the surfaces (4) with the belt conveyor (5) stopped. Immediately after the drying, the belt conveyors (5) are set in motion in the opposite direction so that the dried material, beyond the rollers (7), is thrown and unloaded towards the outside through an extraction opening (13) and a sluice (14). The drying takes place in optimum operating conditions within drying cabinets, while the supply and unloading of the material are simplified with respect to known drying cabinets and they may even become automatically controlled operations. |
