Alkali resistant brick of cement kiln refers to the clay refractory brick with low aluminum refractory clay as the main raw material, which has alkali corrosion resistance in the cement kiln system. The main raw materials of alkali resistant brick are coke gem, pyrophyllite, silica and so on. The mechanism of alkali resistant brick is to react with alkali metal oxide at high temperature to produce high viscosity liquid phase, form a glazed protective layer, cover the brick surface and block the surface pores, prevent the penetration and erosion of alkali metal melt, and achieve the purpose of alkali corrosion resistance.
Alkali resistant bricks for cement kilns
Alkali resistant brick can be divided into ordinary type, high strength type, arch type and heat insulation type.
Application of alkali resistant brick in cement kiln
Ordinary alkali-resistant brick is mainly used in cement kiln preheater, decomposing furnace third air pipe and other parts.
High strength alkali resistant brick is mainly used in cement kiln preheater, decomposition furnace, triple air pipe, vertical rise flue, cyclone straight barrel and cone.
The arch alkali-resistant brick is mainly used in the preheater of cement kiln and the third air pipe of decomposing furnace.
Heat insulation alkali-resistant brick is mainly used for cement kiln back kiln, kiln door cover and cooler.