... .stable operation and good performance 3.widely used in metallurgy, building, refractory,ect What is Rotary ... type. Working Principle of Rotary Kiln: 1) With a certain slope to the level, the ... Rotary kiln is the Thermal Equipment, heating materials, in cement industry for calcining clinker. 2) It ... is also used in various industries, such as cement, nonferrous metallurgy, ...