Sand dryer is also called rotary dryer, which is able to handle materials in quantity. Due to its reliable operation, excellent adaptability and large handling capacity, it is widely used in metallurgical industry, construction materials, food industry, light industry, chemical engineering industry, coal industry, mining industry and pharmaceuticals industry. The machine is applicable to granular materials, sticky and paste materials or watery materials. The advantages are high productivity, wide application scope, small flow resistance force, easy operation and so on. It is commonly used to dry sand, powdered ore, coal slurry, fowl manure, cow manure and so on.