The drying equipment dealing with a large number of materials, reliable operation, operation flexibility, strong adaptability, large processing capacity. Dryer is generally suitable for granular materials. Especially drying sand, river sand, quartz sand and other drying effect is excellent. The advantages of dryer are large production capacity, wide range of application, small flow resistance, large fluctuation range allowed in operation, convenient operation, etc. It is often used for drying river sand, artificial sand, quartz sand, mineral powder, cinder and so on.