大比例掺烧典型工业固废对生活垃圾焚烧炉燃烧特性的影响研究  

Study on the Combustion Characteristics of Municipal Solid Waste Influenced by Large Proportion of Typical Industrial Solid Waste in a Solid Waste Incinerator

作　　者：戚晓波 易鹏 马云峰 林晓青 QI Xiaobo;YI Peng;MA Yunfeng;LIN Xiaoqing(Shaoxing Environmental Industry Co.Ltd.,Shaoxing Zhejiang 312000;Shaoxing Qingneng Environmental Protection Co.Ltd.,Shaoxing Zhejiang 312000;School of Environment,Hangzhou Institute for Advanced Study,UCAS,Hangzhou Zhejiang 310024;State Key Laboratory of Clean Energy Utilization,National Engineering Research Center for Clean Utilization Technology and Equipment of Solid Waste Energy,Institute for Thermal Power Engineering,Zhejiang University,Hangzhou Zhejiang 310027)

机构地区：[1]绍兴市环境产业有限公司,浙江绍兴312000 [2]绍兴市清能环保有限公司,浙江绍兴312000 [3]国科大杭州高等研究院环境学院,浙江杭州310024 [4]能源高效清洁利用全国重点实验室,固体废物能源化清洁利用技术与装备国家工程研究中心,浙江大学热能工程研究所,浙江杭州310027

出　　处：《环境卫生工程》2025年第2期1-11,共11页Environmental Sanitation Engineering

基　　金：浙江省“尖兵领雁+X”研发攻关计划项目(2024C03130)。

摘　　要：以绍兴市生活垃圾(MSW)和工业固废(ISW)为研究对象,充分聚焦生活垃圾焚烧系统大比例掺烧工业固废的重点和难点问题,结合实验室模拟研究和实际焚烧系统掺烧试验详细研究了二者的基础理化特性、燃烧特性差异及掺烧比影响,以及掺烧后对灰渣特性的影响。研究发现,生活垃圾和工业固废理化特性差异明显,工业固废组分更为单一,以纺织废物为主(22.9%~72.0%),热值(9121.2~14975.8 kJ/kg)和挥发分比例(44.9%~71.8%)更高,其掺烧所引入的S和Cl等污染元素将为后续烟气污染物治理带来一定挑战。燃烧特性测试结果表明,工业固废纺织类占比较大,造成了其着火温度较高,但燃尽温度与着火温度的温差较小,即点燃后燃烧反应迅速且时间较短。系列热重分析结果表明,生活垃圾和工业固废的最佳掺烧比为1.00∶1.35,相应着火温度、燃烧速率温度和燃尽温度均低于生活垃圾,可燃性指数C(2.73×10^(-5)%·min^(-1)·℃-2)和燃烧特性指数S(4.34×10^(-8)%2·min^(-2)·℃-3)亦达到最高水平。在实际生活垃圾焚烧炉运行中,大比例掺烧工业固废(MSW∶ISW=1∶1)和提高工业固废掺烧比(MSW∶ISW=1.0∶1.5)会提高炉渣热灼减率,显著扩大水平烟道和布袋飞灰粒径,降低飞灰熔融特征温度,且S/Cl污染元素增多会导致钙剂吸收剂用量剧增造成飞灰增容现象。该研究结果可为后续生活垃圾焚烧系统大比例协同处置工业固废的稳定运行及工艺优化提供理论依据。Taking Shaoxing municipal solid waste(MSW)and industrial solid waste(ISW)as the research objects,focused on the key and difficult problems of the large co-incineration proportion of ISW in MSW incineration system,the physical and chemical characteristics,the difference of combustion characteristics,the influence of the co-incineration ratio,and the influence of combustion on ash and slag characteristics of MSW and ISW were studied by combining the laboratory simulation and actual incineration system co-incineration test.It was found that the physical and chemical characteristics of MSW and ISW were significantly different,and ISW had more single composition,mainly textile waste(22.9%-72.0%),higher calorific value(9121.2-14975.8 kJ/kg)and volatile contents(44.9%-71.8%).And the pollution elements such as S and Cl introduced by ISW would bring certain challenges to the subsequent treatment of flue gas pollutants.The test results of combustion characteristics showed that the textile proportion of ISW was relatively large,resulted in higher ignition temperature,but a small temperature difference between the burnout temperature and the ignition temperature,that is,the combustion reaction after ignition was rapid and the time was short.The results of thermogravimetric(TG)analysis showed that the optimal co-incineration ratio of MSW and ISW was 1.00∶1.35,and the corresponding ignition temperature,combustion rate temperature and burnout temperature were lower than those of MSW,the flammability index C(2.73×10-5%·min^(-1)·℃-2)and combustion characteristic index S(4.34×10^(-8)%2·min^(-2)·℃-3)also reached the highest level.In the operation process of MSW incinerator,a large co-incineration proportion of ISW(MSW∶ISW=1∶1)and increasing the ISW co-incineration ratio(MSW∶ISW=1.0∶1.5)would increase the slag thermal reduction rate,significantly expand the particle size of fly ash in the horizontal flue and bag,and reduce the characteristic melting temperature of fly ash.In addition,the increased contents of S/C

关 键 词：生活垃圾焚烧 工业固废掺烧 掺烧比 燃烧特性 灰渣特性 

分 类 号：X799.3[环境科学与工程—环境工程] X705