针对火力发电厂湿法脱硫工艺出现“石膏雨”现象进行了分析，并从FGD系统设计和运行等方面提出了解决问题的方法和建议，从而在很大程度上减少湿法脱硫“石膏雨”现象的发生。

Focusing analysis on the phenomenon of "gypsum rain" of the thermal power plant wet desulphurization process,and put forward the methods to solve the problems and suggestions from the FGD system design and operation etc,thus greatly reducing wet desulfurization "gypsum rain" phenomenon.