In the dry kiln production process,

In the dry kiln production process, the temperature of the kiln gas at the entrance of the rotary kiln can reach 1400 ° C, the temperature of the material when leaving the kiln reaches 1400 ° C, and the temperature of the secondary air entering the kiln is about 1200 ° C The mouth is almost completely leaked under the abrasion and erosion of a high-temperature flame of 1400 ° C and clinker with large particles and high strength. The working conditions are also very harsh, and the lining period of the kiln affects the mission of the whole kiln. The easy deformation of the kiln mouth causes frequent brick dropping, the kiln mouth has no stable kiln skin, and the temperature of the secondary air is greatly increased, so that the kiln kiln lining must be able to withstand the erosion of high-temperature airflow, the alkali corrosion of materials and the wear of materials.