Patent ID: 7527679

Claim:
An exhaust smoke desulfurization apparatus comprising a rotatable drum having lateral and circumferential surfaces of a perforated lattice structure rotatably supported at its axial center, within a fixed duct of specific length, by a horizontal shaft extending from a gas inlet port side to a gas exhaust port side of said fixed duct; a rotatable filler thickness formed of gas-liquid contact filler pieces residing within the aforesaid drum; a slurry holding tank incorporating a gas sealing plate installed at the gas inlet and gas outlet side of the rotatable filler thickness as means of axially directing a flow of gas through the filler thickness, a supply pipe which supplies a slurry containing an absorption agent, and a discharge pipe which exhausts a product material within the slurry, said supply pipe and discharge pipe being installed beneath the filler thickness, and a recirculation means incorporating a pump which pumps the slurry upward from the slurry holding tank onto the upper part of the circumferential surface of the drum, at a point offset from the horizontal shaft along the radial axis, in order to apply a greater weight volume of slurry to one side of the drum, thus inducing a weight imbalance of slurry within the drum which has the effect of rotating the filler thickness and further propagating gas-liquid contact.