危险废物逆流式回转窑焚烧工艺探讨  

Discussion on Incineration Process of Hazardous Waste in Countercurrent Rotary Kiln

作　　者：仇云飞 赵发敏 刘栋 QIU Yunfei;ZHAO Famin;LIU Dong

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《绿色矿冶》2023年第3期63-67,共5页Sustainable Mining and Metallurgy

摘　　要：回转窑焚烧炉是一种适应性强、能焚烧多种液体和固体废物的多用途焚烧炉。逆流式回转窑以其热解为主的焚烧工艺特点在危险废物处置领域的应用逐步增多。由于危险废物来源多样,成分复杂,回转窑焚烧处理过程中的物料配伍、炉渣热灼减率、结焦是行业内较为关注的问题。本文结合中国恩菲孝感固废处置中心项目的运行经验,对逆流式回转窑的工艺进行探讨,包含焚烧配伍比例、进料过程中的工艺控制要点、炉渣热灼减率控制方式、焚烧系统各部位结焦成因及防控措施等,以期为行业内逆流式回转窑长期稳定运行提供参考和借鉴。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.

关 键 词：危险废物 逆流式回转窑 结焦 脱酸 热灼减率 

分 类 号：X758[环境科学与工程—环境工程]