cooling.Advantages1. Easy production operation, good adaptability.(1) User can obtaining the best drying effect by adjusting thickness of raw material pavement, shaft rotating speed, quantity and form of rakes.(2) Each layer of hot plate could be filled in heating medium or cooling medium for drying or cooling.(3) Retention time of material can be accurately controlled.2. Convenient operation(1) Operation panel is simple to use.(2) A thorough discharging could be finished very soon after stop f