Aiming at the parameter selection in the design process of wet limestone/gypsum FGD system in coal-fired power plants,by analyzing the composition of wet limestone/gypsum FGD system,related process parameters such as hollow tower flow,slurry pH value,slurry Cl-ion concentration,slurry density,spray particle size,limestone residence time,gypsum residence time,limestone particle size,natural oxidation rate,etc.are described in wet limestone/gypsum FGD system design.The influence and principle of the above parameters on the wet limestone/gypsum FGD system are analyzed in detail,and the design values of the above parameters are proposed to provide design guidance for the wet limestone/gypsum FGD system ultra-low emission transformation.
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