Sustainable Mining and Metallurgy

Drying kiln was the key link in the use of volatilizing kiln lining. By analyzing the heat transfer between the flue gas flame and the kiln lining, and between the kiln lining and the kiln shell during the drying process, the mechanism of the drying kiln was expounded. By studying the changes in the temperature of the kiln shell and the temperature of the kiln head lining, and the time required for each section of the kiln shell to reach a certain temperature, it was deduced that the temperature of the kiln lining was 3~4times that of the kiln shell，and excessive heating should be avoid during drying, and the kiln lining had been dried when the shell temperature of the kiln tail exceeded 160℃. In addition, by analyzing the temperature distribution of kiln shell corresponding to different constant temperature at the end of the kiln, the main effect of each constant temperature was studied, which provided a basis for the drying process of the integral-casting lining of the volatile kiln.