化工进展Issue(1)：239-244,6.DOI:10.16085/j.issn.1000-6613.2015.01.043
湿法脱硫系统“石膏雨”问题的成因及解决对策
Origin and solution of the“gypsum rain”problem of limestone-gypsum WFGD system
翁卫国 1张军 1李存杰1
作者信息
- 1. 浙江大学热能工程研究所，能源清洁利用国家重点实验室，浙江 杭州 310027
- 折叠
摘要
Abstract
The problem of“gypsum rain”has gradually aroused the concern of the society,and the study of reasonable and effective solution has become one of the most important topics in the research of coal-fired flue gas pollution control. In this paper,the factors affecting the formation of“gypsum rain” were analyzed. The main reason for “gypsum rain” was canceling gas gas heater (GGH) in the wet flue gas desulfurization (WFGD) system which lowered exhaust temperature,and other influence factors included equipment design,operation parameters and external environment. The measurement methods of “gypsum rain” were reviewed. Measurement of the main composition of “gypsum rain”(slurry drops,fine particulate matter and SO3 acid mist) could be classified into chemical analysis after sampling,and electric charge or optical physical chemistry method. Three solutions of design and operation optimization of dust removal equipment and FGD system,design optimization of tail flue gas duct,and additional wet electrostatic precipitator (WESP) were proposed. Facing increasingly perilous“gypsum rain”problem,the government should issue related rules and regulations as soon as possible and carry out supervision and inspection of“gypsum rain”at the same time.关键词
湿法脱硫/石膏雨/排放现状/测量/对策Key words
WFGD/gypsum rain/emission situation/method of measurement/solution分类
资源环境引用本文复制引用
翁卫国,张军,李存杰..湿法脱硫系统“石膏雨”问题的成因及解决对策[J].化工进展,2015,(1):239-244,6.
