Method for suppressing clogging of cloth cloth and flue gas desulfurization system

摘要

Problem to be solved: to provide a method for inhibiting clogging of a cloth cloth which can suppress the clogging of the cloth and suppresses the deterioration of the gypsum obtained by dehydrating the gypsum slurry and a flue gas desulfurization system.A method of inhibiting clogging of a cloth to separate water from a gypsum slurry that is adjoined by a flue gas desulfurization apparatus configured to contact the exhaust gas discharged from the combustion device and the absorption liquid; The step of obtaining redox reduction potential to obtain the redox reduction potential of the absorption liquid brought into contact with the exhaust gasThe present invention is provided with a step of adding a chemical to reduce the oxidation-reduction potential of the absorption liquid to the absorption liquid so that the value of the redox reduction potential obtained in the step of obtaining the redox reduction potential does not exceed the threshold value.Diagram