高硫分燃煤电厂超低排放颗粒物排放特性分析  

Analysis on the Characteristics of Ultra-low Emissioned Particles in High Sulfur-containing Coal-fired Power Plants

作　　者：邹鹏 董韦汝 吴小琴 ZOU Peng;DONG Weiru;WU Xiaoqin(China Power Huachuang(Suzhou)Electricity Technology Research Co.,Ltd.,Suzhou 215000)

机构地区：[1]中电华创(苏州)电力技术研究有限公司,江苏苏州215000

出　　处：《电力安全技术》2024年第7期70-73,共4页Electric Safety Technology

摘　　要：某高硫分燃煤锅炉在经过超低排放改造后,颗粒物排放浓度仍较高,检测发现锅炉脱硫装置出口颗粒物存在较多亚微米级颗粒物,主要包含飞灰、SO_(3)胶体、硫酸钙结晶体以及少量含碳物质,通过进一步分析,烟气温度会影响电除尘器去除粉煤灰、SO_(3)的能力,控制电除尘器入口烟气温度低于120℃,能有效提升细小飞灰、SO_(3)去除效率。Upon the ultra-low emission-related retrofit of high sulfur-containing coal-fired boiler,the concentration of emissioned particulates is still high,and after testing,it is found that there are more submicron-level particles in the outlet substances of desulphurization unit for the boiler,mainly including flying ash,SO_(3) colloids,calcium sulfate crystalline and a small amount of carbon-containing substances.Further analysis shows that flue gas temperature would affect the capacity of removing flying ash and SO by electric dust collector,and controlling the flue-gas temperature lower than 120℃ at the inlet of electric dust collector is available to effectively improve the removal efficiency of tiny flying ash and SO_(3).

关 键 词：高硫分燃煤 SO_(3) 颗粒物排放浓度 超低排放 电除尘器 

分 类 号：TM621.2[电气工程—电力系统及自动化]