Cement clinker burning belt with the heat load on the choice of refractory brick has a significant reference significance, cement clinker in the production process, burning with lining lining for a long time to withstand the flame and high temperature clinker heat load damage, heat load Generally used to burn with the unit yield per hour to bear the heat to express. The corresponding heating load is higher, the corresponding lining brick is affected by the melting groove erosion and the melt erosion. Each brick has the maximum unit heat load value, and the maximum heat load of the existing refractory is 2.42 * 107kj / (m2.h) This value has improved with the progress of the technology.