Sustainable Mining and Metallurgy

Rotary kiln incinerator is a multi-purpose incinerator with strong adaptability and can burn a variety of liquid and solid waste. The application of reverse flow rotary kiln in the field of hazardous waste disposal is gradually increasing due to its pyrolysis-based incineration process. Due to the diverse sources and complex composition of hazardous waste, the material combination, slag burming reduction rate and coking in the process of rotary kiln incineration are the issues of concern in the industry. Based on the operation experience of China ENFI Xiaogan Solid Waste Disposal Center project, this paper discusses the process of countercurrent rotary kiln, including the proportion of incineration, the key points of process control in the feeding process, the control method of slag thermal burning rate, the causes of coking in each part of incineration system and the prevention and control measures, in order to provide reference for the long-term stable operation of countercurrent rotary kiln in the industry.