燃煤循环流化床锅炉掺烧生活垃圾研究综述  

Overview on Co⁃combustion of Coal and Municipal Solid Waste in a Circulating Fluidized Bed

作　　者：赵中华 张绪辉 张利孟 王海超[1,2] 董信光 ZHAO Zhonghua;ZHANG Xuhui;ZHANG Limeng;WANG Haichao;DONG Xinguang(Shandong Electric Power Research Institute,Jinan,250003,China;State Grid Shandong Electric Power Research Institute,Jinan,250003,China)

机构地区：[1]山东电力研究院,山东济南250003 [2]国网山东省电力公司电力科学研究院,山东济南250003

出　　处：《山东电力技术》2021年第6期64-67,共4页Shandong Electric Power

基　　金：山东电力研究院2021年自主研发项目“基于垃圾分类后垃圾焚烧厂锅炉设备改造及运行优化方案研究”(ZY-2021-11)。

摘　　要：综述近年来国内外燃煤循环流化床锅炉掺烧生活垃圾技术的研究进展。采取循环流化床锅炉掺烧生活垃圾时燃烧曲线与煤单独燃烧时相似,垃圾掺入后锅炉床温有所降低、锅炉热效率下降。对于垃圾而言,燃烧更加充分,大大减少二■英的生成,烟气中SO_(2)和NO_(x)的含量也低于煤单独燃烧时的污染物浓度排放。垃圾掺烧对燃煤灰渣特性影响很小,重金属的浸出毒性均低于危险废物浸出毒性鉴别标准中的限定值。实际掺烧过程中应控制好掺烧比例及烟气中污染物特别是二■英和酸性气体的排放。The technology of co⁃combustion of coal and municipal solid waste in circulating fluidized bed was reviewed.The burning curves when the circulating fluidized bed is mixed with municipal solid waste is similar to that when coal is burned alone.Both the bed temperature and boiler efficiency decrease when waste is added.However,the waste is burned more completely,which reduces the production of dioxins,and the amount of SO_(2) and NO_(x) is also lower than the concentration of pollutants when coal is burned alone.The co⁃combustion has little impact on fly ash characteristics,and the extraction toxicity of heavy metals in ash is lower than the regulation values of the identification standard for hazardous wastes.In practical applications,the proportion of waste added and pollution emissions should be controlled,especially dioxins and acid gases.

关 键 词：循环流化床 生活垃圾 二■英 飞灰 

分 类 号：TK224.1[动力工程及工程热物理—动力机械及工程]