The lining repair material in the production of rotary kiln is generally used under more troublesome circumstances, and its service cycle is very short. Especially when the rotary kiln firing belt is used, the use time of refractory materials. 5-6 months more. If the quality is very bad, the size is not suitable, the thermal system in the rotary kiln is also very unstable, it is easy to appear a series of damage accidents such as cracking and falling off of the refractory brick lining of the furnace, in serious cases, the metal shell of the cement rotary kiln will be burned deformation and even have holes, which will cause serious production problems.

According to the damage degree of the lining in the cement rotary kiln, partial or total replacement measures can be taken to repair the work. For the local replacement, it is necessary to complete the hot repair and replacement of the damaged lining in a short time, so the requirements for the lining repair materials in the production of rotary kiln are very high, and the market of rotary kiln lining repair materials are high in price, long in repair time and short in service life.

Rotary kiln lining repair material, including calcite, dicalcium silicate, sodium metaaluminate, sodium silicate, mullite, which is characterized by the rotary kiln lining repair material each raw material according to the following weight components: calcite 70-100, dicalcium silicate 25-30, sodium metaaluminate 15-20, sodium silicate 15-20, mullite 10-15. The raw material selected by the invention has wide source, few types, low cost, short repair time, high bonding strength, fast hardening, high temperature resistance, high thermal stability, and can prolong the life of rotary kiln.