Rotary furnace is mainly used for drying quartz sand powder or block with certain humidity. When heated to appropriate temperature, it can achieve the function of drying and roasting or changing its molecular structure. It is widely used in chemical industry, magnetic material, metallurgy, alloy powder, lithium battery and other new material industries.

The material of rotary heating furnace is transported to the drum of double tube roller continuous drying furnace by hopper feeding pipe. The drum is a rotating cylinder which is slightly inclined to the horizontal line. The material enters from the higher end. The heating body is distributed around the furnace. The heat energy fully contacts with the material. With the rotation of the cylinder, the material is under the action of gravity and runs to the lower end. The wet material is in the cylinder In the process of moving forward, the heat is directly or indirectly supplied by the heat generator, which makes the wet material dry.

The rotary heating furnace is equipped with dust collecting hoods at both ends and dust collecting fans at the top, which can collect the material particles in the gas and discharge them to the outside.