FLUE GAS DESULFURIZER FOR DEALING WITH SO2 OF HIGH CONCENTRATION

摘要

PROBLEM TO BE SOLVED: To provide a flue gas desulfurizer for dealing with SO₂ of high concentration in which gas-liquid contact efficiency of waste gas and liquid absorbent is increased to enable effectively absorbing and removing SO₂ of high concentration contained in waste gas by a single absorber and contriving reduction in installing area and lowering costs. ;SOLUTION: In the bottom part of a liquid receptacle part 35 of an absorber 34, a jet nozzle 44 for directly jetting waste gas containing SO₂ of high concentration to the liquid reserving part 35 to cause a turning flow in liquid absorbent 36 is arranged and also an air feeding pipe 42 for blowing oxidizing air into the liqiud absorbent 36 near an ejector of the jet nozzle 44 to oxidize it is arranged. To the center of the bottom part of the liquid reserving part 35 of the absorber 34, a liquid absorbent circulating pipe 39 for drawing out a part of the liquid absorbent 36 to circulate it to the upper part of the liquid reserving part 35 by the actuation of a circulating pump 40 is connected, and in mid-way of the liquid absorbent circulating pipe 39, a solid matter recovering pipe 43 for recovering solid matter formed in the liquid absorbent 36 is branched and connected.;COPYRIGHT: (C)1999,JPO