... widely used in metallurgy, building, refractory,ect What is Rotary Kiln? Rotary kiln is composed of cylinder, gears, support device, ... , and efficient.4. Cylinder tyre bolster: lower bolster has three types: fixed, zoom and floating. The structure is simple, ... material kiln, calcined petroleum coke rotary kiln to different materials. Application of Rotary Kiln: 1) Rotary kiln is the Thermal Equipment, ...