Rotary furnace is a thermal equipment for calcining, roasting or drying granular and powdery materials. It is a long steel cylinder lined with refractory material. The furnace body is supported on several pairs of rollers and has a slope of 3% to 6%. The furnace body is slowly rotated by the motor through the gear. The material is fed from the higher end and discharged from the lower burner end. The fuel is injected into the furnace end (pulverized coal, heavy oil or gaseous fuel) and burned in the furnace. The flue gas is discharged from the higher end (the material and the flue gas are countercurrent). It is mainly used for calcining cement clinker in the cement industry, as well as for calcining granular and powdery materials in the refractory and ceramic industries and drying various raw materials in the above industries. It is widely used in the chemical industry for drying, dewatering and roasting materials. Rotary kiln dryer is mainly used for pre-firing of hard ferrite powder, and can also be used in cement, metallurgy, chemical and other industries. The equipment consists of the main kiln and its supporting transmission device, cooling pipe, fuel system, electrical control, secondary air inlet device, exhaust dust removal device and preheating kiln body. It has over-temperature alarm, overload alarm, automatic control of working temperature, and adjustable oxygen in the kiln. Features: Low temperature drying is required, and large quantities of continuously dried materials are required. The drum dryer has a high degree of mechanization and a large production capacity. The fluid passes through the cylinder with low resistance and low functional consumption. Adaptability to material properties is relatively strong. The operation is stable, the operation cost is low, and the uniformity of product drying is good. As one of the leading dryer manufacturers in China, we are dedicated to designing and manufacturing all kinds of rotary kiln. Welcome to buy the best rotary kiln for sale from us. Competitive price and fast delivery are available.