Cement machinery in a rotary kiln is firm in structure, smooth operation, kiln products of high quality, and for the user to provide advanced efficient shaft preheater, five stage cyclone preheater. Also used to calcined clay, limestone and slag drying etc.; fire-resistant material production, the use of rotary kiln calcining, dimensional stability, strength increase, and processing. Non ferrous and ferrous metallurgy, iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, filing and other metal to rotary kiln for smelting equipment, to ores, concentrates, intermediates, etc. for sintering and roasting.