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