Dingli new grain dryer is made of the heating equipment, mainframe, environmental protection equipment and a new control system. Rely on the gravity of the raw material to descend drying adjustable damping coefficient, not only effectively control the dust, to avoid wind tunnel, but also save a lot of power rotation, environmental protection system. According to the material drying detection system to control the material CVT system to achieve quality control and yield coordination, and can change the drying requirements at any time to effectively control the drying quality.