With the rapid development of China's cement industry, in recent years, cement companies have increasingly high requirements for cooling capacity expansion, energy conservation and consumption reduction. According to the internal reference of cement, the cement kiln firing system has been operating at high temperatures for a long time. In order to further improve the operational efficiency of cement thermal equipment, a better insulation material is selected to reduce the temperature of the shell more without increasing or even decreasing the thickness of the insulation layer. At the same time, the effective volume can be expanded to reduce heat loss, thereby achieving the effect of reducing energy consumption, increasing production and efficiency, and bringing more economic benefits to the enterprise