Changzhou Xinli Drying Equipment Co., Ltd. paddle dryer adopts conduction heating method for heating. All heat transfer surfaces are covered by materials to reduce heat loss. Without hot air to take away heat, the heat utilization rate can reach more than 90%. The paddle dryer has a compact structure and a small footprint. According to the structure of the paddle dryer, the heat required for drying is mainly provided by the wall surface of the hollow paddle arranged on the hollow shaft, and the heat transfer of the jacket wall surface only accounts for a small part. The paddle dryer turns and stirs the material by rotating, continuously updates the heating interface, contacts the body and the paddle, and is fully heated to evaporate the surface moisture contained in the material. The new force drying engineering blade dryer has self-cleaning ability, which can improve the heat transfer effect of the blade. The dispersive force generated by the combined motion of the inclined surface of the rotating blade and the particle or powder layer automatically removes the sludge attached to the heating inclined surface, and the blade maintains an efficient heat transfer function.