The invention relates to the technical field of
flue gas desulfurization, in particular to a limestone-
gypsum wet desulfurization device, which is characterized in that a plurality of spray pipes are annularly arranged in a desulfurization
tower, and spray holes are formed along the circumferential surfaces of the spray pipes, so that limestone
slurry is horizontally sprayed out, the direct
impact of
flue gas on the spray holes and the attachment of reactants are effectively avoided, and the desulfurization efficiency is improved. And the blocking risk is reduced. And meanwhile, the horizontally sprayed
slurry can clean the surface of the spraying
pipe, so that blockage is further prevented. Due to the synchronous lifting and rotating design of the first lifting plate and the stirring blades, the mixing and stirring of
slurry with different heights in the desulfurization
tower are enhanced, and the stirring efficiency is improved. The second lifting plate and the first lifting plate act synchronously, impurities in the spraying holes are cleaned through a
brush, and blockage caused by limestone slurry impurities is avoided. Due to the design, the desulfurization efficiency is improved, the maintenance work is simplified, the maintenance cost is reduced, and the stability and the reliability of the
system are enhanced.