The air flow dryer is consisted of hot-air stove,screw feeder,buffer air pipe blower and cyclone. Negative pressure. QHG Air- ... drier is consisted of hot-wind stove (ready by customer), screw feeder, buffer, blower, the pipes and cyclThe work process is that ... of blower, the materials enter into the pipe through the screw feeder, so that the hot wind and materials mix together, and ...