烧结过程余热资源回收利用技术进步与展望_董辉.pdf

第49 卷 第9 期 钢 铁 Vol.49 ，No.9 2 0 1 4 年 9 月 Iron and Steel September 2014 DOI: 10.13228/j.boyuan.issn0449-749x 烧结过程余热资源回收利用技术进步与展望 董 辉， 王爱华， 冯军胜， 张 琦， 蔡九菊 （东北大学国家环境保护生态工业重点实验室，辽宁沈阳110819） 摘 要：烧结过程余热回收与利用是降低烧结工序能耗的主要手段之一。概述了国内外烧结余热回收与利用技术 发展状况，指出了中国烧结余热回收利用中存在的不足。从工艺流程、技术特点的角度重点阐述了烧结矿余热竖罐 式回收发电工艺和烧结过程余热资源分级回收与梯级利用技术；给出了烧结烟气余热回收与脱硫脱硝一体化工艺的 基本思路。提出应积极推广烧结过程余热资源分级回收与梯级利用技术，加快开发烧结矿余热竖罐式回收发电工 艺，深入倡导烧结烟气余热回收与脱硫脱硝一体化的理念，为中国烧结工序的节能减排奠定技术基础。 关键词：烧结余热；发电；竖罐式回收；分级回收；梯级利用 文献标志码：A 文章编号：0449-749X （2014 ）09-0001-09 Progress and Prospect in Sintering Waste Heat Resource Recovery and Utilization Technology DONG Hui, WANG Ai-hua, FENG Jun-sheng, ZHANG Qi, CAI Jiu-ju （SEPA Key Laboratory on Eco-Industry, Northeastern University, Shenyang 110819, Liaoning, China） Abstract: The waste heat recovery and utilization in sintering process is one of the means to decrease the energy consump- tion in sintering process. The current situations of waste heat recovery and utilization in sintering process at home and abroad are summarized, and the shortage existing in China is indicated. The power generation process of waste heat recov- ery and utilization for sinter in vertical tank and grade recovery and cascade utilization of waste heat from sintering pro- cess and are expounded emphatically from the perspective of process flow and technical features. The basic idea of the in- tegrated process of waste heat recovery and desulfurization and denitration from sintering exhaust gas is given. It is point- ed out that grade recovery and cascade uti