The paddle dryer is composed of two to four paddle shafts that mesh with each other, a W-shaped shell with a jacket, a machine base and a transmission part. It is sent to the exhaust gas treatment device in a closed atmosphere to avoid environmental pollution.
The dryer uses steam, hot water or heat transfer oil as the heating medium, and the shaft end is equipped with a rotary joint for the introduction and export of the heat medium. The heating medium is divided into two paths, which enter the jacket of the dryer shell and the inner cavity of the blade shaft respectively, and heat the body and the blade shaft at the same time to heat and dry the material by conduction heating. The material to be dried is continuously fed into the feeding port of the dryer quantitatively and continuously by the screw feeder. Heating to evaporate the surface water contained in the material. At the same time, with the rotation of the blade shaft, the material is conveyed in a spiral trajectory towards the discharge port, and the stirring is continued during the conveying, so that the water seeping out of the sludge continues to evaporate. After that, the qualified products that are dried and uniform are discharged from the discharge port.
