... 3.widely used in metallurgy, building, refractory,ect What is Rotary Kiln? Rotary kiln is composed of cylinder, gears, support device, kiln ... could be ensured. Types: Rotary kiln belongs to building material equipment, and it can be divided into cement kiln, ... kiln and active lime kiln, porcelain kiln according, building material kiln, calcined petroleum coke rotary kiln to different materials. ...