1. Strictly control the quality of incoming limestone raw materials and coal powder;

 

2. Increase the hot mineral sieve to reduce the amount of powder into the kiln;

 

3. How to prevent the rotation speed of the rotary kiln from being properly increased, increase the heat transfer efficiency, and realize the “slow material quick burning”, and the rotary kiln can make the material burn well at a lower temperature;

 

4, increase the amount of secondary air intake, so that the calcination zone in the kiln is elongated, reducing local high temperature accumulation;

 

5. Turn the kiln ring? Reduce the amount of coal injection, increase the amount of blasting, increase the combustion of oxygen to pulverized coal, and at the same time lengthen the flame and reduce the local high temperature.