摘要
袋式除尘器是重要的工业烟尘治理设备。通过机理分析、数据调研和工程实测相结合的手段,对袋式除尘器的脱Hg性能进行了系统研究。结果表明:袋式除尘器在高效除尘的同时会脱除绝大部分颗粒Hg,脱除效率在95%~100%;由于入口气态Hg浓度及飞灰未燃尽碳的含量等不同,袋式除尘器对气态Hg的脱除效率差异较大,但部分测试数据也达到90%以上。工程实测某15 MW循环流化床(circulating fluidized bed,CFB)锅炉配套袋式除尘器,其对气态Hg、颗粒Hg和总Hg的脱除效率分别为82.14%、99.88%和98.44%,系统Hg平衡系数为91.38%。研究结果可为工业烟气后续Hg排放控制提供一定参考。
Fabric filter is an important industrial dust control equipment.Through the combination of mechanism analysis,measured data research and engineering measurement,the Hg removal performance of fabric filter was studied.The results show that the fabric filter can remove most of the particulate Hg while removing dust efficiently,and the removal efficiency is between 95%and 100%.Due to the differences in inlet gaseous Hg concentration and unburned carbon content of fly ash,the removal efficiency of gaseous Hg by fabric filter varies greatly,but some test data also reach more than 90%.The actual measurement of a 15 MW circulating fluidized bed(CFB)boiler fabric filter was studied,the removal efficiencies of gaseous Hg,particulate Hg and total Hg were found to be 82.14%,99.88%and 98.44%,respectively,and the Hg balance coefficient of the system was 91.38%.The research results can provide some reference for subsequent Hg emission control of industrial flue gas.
作者
刘含笑
郭高飞
LIU Hanxiao;GUO Gaofei(Zhejiang Feida Environmental Science&Technology Co.,Ltd.,Zhuji 311800,Zhejiang Province,China)
出处
《发电技术》
CSCD
2023年第2期193-200,共8页
Power Generation Technology
基金
国家重点研发计划项目(2022YFC3701501)。
关键词
燃煤电厂
袋式除尘器
脱Hg
排放控制
脱除效率
coal-fired power plant
fabric filter
Hg removal
emission control
removal efficiency
