我国烧结过程余热资源回收利用现状与案例分析  

Current status and case study on sintering process waste heat recovery and utilization in China

作　　者：杨博[1] 陈林根[1] 沈勋[1] 秦晓勇[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学 热科学与动力工程研究室 舰船动力工程军队重点实验室 动力工程学院,湖北武汉430033

出　　处：《钢铁研究》2014年第4期54-57,共4页Research on Iron and Steel

基　　金：国家重点基础研究发展计划(973)项目(2012CB720405)

摘　　要：对我国烧结余热回收利用研究现状进行了分析。以某钢厂3台烧结机为例,在利用冷却机高温段废气通过余热锅炉进行蒸汽发电的基础上,进一步提出了冷却机中温段废气用于热风烧结或点火炉助燃空气,烧结机尾烟气用于吸收式制冷,从制冷机出来的废气和冷却机低温段废气用于预热烧结混合料的方案。计算结果表明:采用该方案,每年可节约标煤22万t,CO2减排54万t。The current status of sintering waste heat recovery and utilization in China is analyzed. Taking three sintering machine in a steelmaking plant as an example, on the basis of utilization of the high temperature part of cooling machine flue gas for power generation through steam generated by waste heat boiler, a further scheme is proposed that the medium temperature part of cooling machine flue gas is used for hot air sintering or ignition furnace combustion-supporting air, the flue gas of sinter machine discharge end is used for absorption refrigeration, the flue gas flowing out of refrigerator and the low temperature part of cooling machine flue gas are used for preheating of sinter mixture. Results show that the scheme can realize energy saving 220 000 tons and CO2 emission reduction 540 000 tons per year.

关 键 词：烧结 余热回收利用 节能减排 

分 类 号：TK12[动力工程及工程热物理—工程热物理]