After the damp raw material is put into the drier from on end,it is turned over through strring-up rake inside the cylinder and distributed uniform in the drier and contacted with countercurrent hot air fully.It speeds up heat and mass conducting of dry.During the oeriod of dry,raw material is effctde by stirring-up rake with gradient and hot air,it can be moved and passed through the dry region and to star valve and then discharge the finisher product.
The mechanization degree of revolving drier is high and its production capacity is large. The resistance when fluid passes through the cylinder is small,the consumption of power is low. Have strong adaptability to raw materials.

It is suitable for drying raw materials that have large size and heavy specific gravity.Forexample,ore,slag of blast furnace,coal,metalic powder,phosphorus fertilizer,ammonium sulfate.dry powder,granule raw materials which habe special requirements to drying .For example:Hpvesicang,less,lighe calcium carbonate,active white earth,magnetic powder,graphite,medical slag,etc.dry raw materials that magnetic powder,graphite,medical slag.etc.dry raw materials that need to dry at low temperature continuously and ist batch is large.