摘要
与SO_2和NO_x超低排放技术不同,颗粒物超低排放是多个处理环节共同作用的结果,是一个系统工程,需同时考虑一次除尘和二次除尘技术的适用性和有效性。随着燃煤电厂除尘技术和协同除尘新技术的发展及推广应用,目前我国燃煤电厂实现颗粒物超低排放的技术路线出现多元化,在过去依赖湿式电除尘做为二次除尘技术的超低排放技术路线基础上,还出现了以湿法脱硫协同除尘做为二次除尘和以超净电袋复合除尘为基础不依赖二次除尘的超低排放技术路线。在分析一次除尘和二次除尘技术的发展与应用现状、效果与适用性等基础上,提出燃煤电厂颗粒物超低排放技术路线选择方法。
Different from SO 2 and NO x ultra-low emission technologies,PM ultra-low emission is the result of the interaction of multiple treatment processes which is a system engineering,so it is necessary to consider the applicability and effectiveness of the primary dust removal and secondary dust removal technology together.At present,PM ultra-low emissions technical route of the coal-fired power plants has been diversified with the development and application of new technology of dust removal and new technology of desulfurization which has synergistic effects for the dust removal.In the past,wet electrostatic precipitator(WESP)dust removal technology as secondary dust removal was the main technology to achieve the ultra-low PM emission,but now the wet desulfurization technology having synergistic effect for the dust removal as secondary dust removal and the electric bag composite dust removal technology able to achieve the ultra-low PM emission by primary dust removal have been applied in the coal fired power plants.The development and application status,effect and applicability of primary and secondary dust removal technology were analyzed,and the principles and methods to choose the ultra-low PM emission technology for coal-fired power plant put forward.
作者
孙雪丽
朱法华
王圣
李辉
SUN Xueli;ZHU Fahua;WANG Sheng;LI Hui(State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control, State Power Environmental Protection Research Institute,Nanjing 210031,China)
出处
《环境工程技术学报》
CAS
2018年第2期129-136,共8页
Journal of Environmental Engineering Technology
基金
国家重点研发计划项目(2016YFC0208102)
国家环境保护公益性行业科研专项(201509021)
关键词
燃煤电厂
超低排放
颗粒物
一次除尘
二次除尘
协同除尘
coal fired power plant
ultra-low emission
particular matter(PM)
primary dust removal
secondary dust removal
synergistic effect for the dust removal
作者简介
孙雪丽(1983—),女,高级工程师,硕士,主要从事电力环境保护技术、政策等方面科研工作,sun-xue-li@163.com;通信作者:王圣(1973—),男,研究员级高级工程师,博士,主要从事电力环保政策、电力规划环评等电力行业环境保护方面的研究,wangsheng9999@126.com
