The simple structured cement rotary kiln is widely used in cement high-grade calcining, the equipment can also be used in the chemical and construction industries. Being convenient and reliable, the production process of the cement kiln has high operation rate and low damage, and its main parts are cylinder, support means, the kiln hood, sealing device and the kiln inlet sealing device. The sealing device which is fitted with coal burner, are depending on the calcining process. The kiln is equipped with a smoke chamber, waste heat power generation boilers, warm-up and pre-calciner. The cylinder has a certain inclination. Calcined according to different process requirements, coal burner can move back and forth. Rotary cement kiln is a calcination clinker in cement industry equipment, the equipment can be overloaded while alternating slow operation under high temperature. The level of its attachment equipment maintenance and thermal system are closely related to the safety of the rotary kiln and efficience.Lubrication, running state, dynamic detection, as well as the size of gear meshing accuracy are all to maintain the focus of transmission. However, the accuracy of the supporting device installation is related to the smooth and reliable operation of the cement rotary kiln. It should be noted that the equipment running in the reasonable control of the carrying amount allocated stall riding wheel, hydraulic gear wheel up and down pressure and the force of the time, riding wheel and tire pad gap. Cement kiln is a combustion and heat transfer devices, heat in the combustion of pulverized coal is generated and the raw material gas absorption heat calcined. The sealing device directly affect the kiln thermal system and running costs. Strengthening the rotary kiln routine maintenance processing is conducive to the management of the equipment. Only by combination of the fuel combustion, heat transfer and proper material movement , the heat generated by fuel combustion will be passed to the raw materials in time when material is in the rotary kiln, and thus to achieve high-yield, high-quality and low consumption.