In the production process of the rotary kiln, the calcination temperature needs to reach thousands of degrees or hundreds of degree. If it relies on the cylinder to support calcination, it will not take long, and the cylinder will be burned, in order to protect cylinder and meet the calcining needs, it will need to be set in stove masonry firebrick. Refractory brick in rotary kiln must ne had to form a complete set of material, and it also needs to have a certain performance.

1. The fracture resistance.  For the abnormal operation of rotary kiln, it will cause severe changes of temperature. Therefore, refractories must have the necessary thermal shock resistance to resist this change in temperature.
2. Anti-chemical corrosion. In the process of burning clinker, and the steam generated by combustion, ash and slag can have chemistry with the refractory brick to erode refractory brick
3. The conditions in the rotary kiln require that refractory brick must be able to withstand raw materials sliding layer and the friction effects generated by mixed dust in the air flowing.
4. The ability of the skin linked to the kiln. in the firing zone with the highest temperature, fire-resistant material must possess one of the most important features that has the ability to put up a good kiln skin, and can maintain kiln skin in a long time.