FLUE GAS TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a flue gas treatment apparatus having a desulfurization device equipped with spray nozzles smoothly spraying without increasing the flow rate of an exhaust gas flow rising in the vicinity of the plurality of spray nozzles spraying downward an absorbent in the desulfurization device.SOLUTION: In a flue gas treatment apparatus where a plurality of branch headers 39 disposed with a plurality of desulphurization spray nozzles 27 spraying a desulfurization liquid into an exhaust gas passage disposed in an absorption tower 5 and main headers 38 connected with the branch headers 39 are installed with multi-stages in a vertical direction and the spray nozzles 27 are installed so that an interval in a vertical direction becomes 0.2d or more and 0.5d or less to an interval d in a horizontal direction between adjacent spray nozzles 27 in the spray nozzles 27 installed on each stage of the branch headers 39,: power can be reduced by about 10% in comparison with a conventional structure while highly maintaining a desulphurization rate, pressure loss in the absorption tower can be reduced and, as a result, power for operating a desulfurization device can be reduced.SELECTED DRAWING: Figure 1