This paper first provides an overview of the wet limestone-gypsum flue gas desulfurization technology and its FGD wet desulfurization system.Then,based on the actual working conditions and needs,a set of FGD wet desulfurization system is designed,and the composition of each part of the FGD wet desulfurization system is optimized,and the equipment improvement,selection,assembly and debugging are carried out according to the design plan so that the annual utilization hours of the equipment meet the company's requirements of 4300 hours,and the desulfurization efficiency can reach more than 95％.Finally,the workflow of the FGD wet desulfurization system is explained,and the phenomenon,causes and treatment methods of the failure of the FGD wet desulfurization system are discussed.
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