Chemical Rotary Kiln is one of the common types of the pyroprocessing equipments for chemical clinker roasting. As the most important pyroprocessing equipment for the roasting of the mineral, Chemical Rotary Kiln is widely used in the roasting of the high alumina bauxite ore in the refractory plant, the roasting of the clinker, aluminum hydroxide and carbon material in the aluminum factory, the magnetizing roasting of the lean iron ore in the steel and iron plants in metallurgy, the roasting of the mineral such as the chromium ore and etc in the chemical factories.