Case analysis and preventive measures of limestone-gypsum wet flue gas desulfurization slurry poisoning for 320MW unit

Abstract

The slurry poisoning of the desulfurization system is a difficult problem in the current desulfurization operation. This paper analyzes the abnormality of the limestone-gypsum wet flue gas desulfurization slurry poisoning of a 320MW unit, and proposes a solution. Through the test method, the slurry composition and gypsum quality the analysis was carried out and effective measures were taken according to the actual situation to solve the slurry poisoning phenomenon and ensure the safe operation of the desulfurization system, which is of great significance to the flue gas emission standard of the desulfurization system of the power plant.