Abstract:

The rotary kiln of active lime works with coal powder as fuel,which leads a circle shape dust liner inside the kiln.While the ring formation is getting worse and inside diameter of kiln is smaller,the factor of material filling is bigger,the thermodynamic engineering is damaged,the negative influence on the kiln comes for the output,quality and safety.Based on both analysis of active lime process and study of laboratory work,the paper gives the ring formation theory of rotary kiln with coal powder as fuel,and offers an efficient handling technology for the dust liner.