... in metallurgy, building, refractory,ect What is Rotary Kiln? Rotary kiln is composed of cylinder, gears, support device ... type. Working Principle of Rotary Kiln: 1) With a certain slope to the level, the whole ... kiln body is supported by rollers and fitted with thrust rollers to control up ... main driving unit for driving system, it is also fitted with the auxiliary driving unit so as to ...