Wet flue gas desulfurization system and wet flue gas desulfurization method

摘要

PROBLEM TO BE SOLVED: To provide a flue gas desulfurization apparatus with high soot removing ability, suppressing enlargement of facilities and increase of cost in a simple constitution.;SOLUTION: In the flue gas desulfurization apparatus having an absorbing tower 1 having a spray header 12 having a plurality of spray nozzles 13 for spraying absorbing liquid to the flue gas from a boiler chamber or like, and a mist eliminator 9 in the downstream side of the flow of the flue gas of the spray headers 12 and absorbing and removing the sulfur oxide in the flue gas, a dust removing spray header 17 having a plurality of two fluid nozzle 14 forming fine particle liquid droplets smaller than the spray nozzles 13 of the spray headers 12 from replenishing water supplied from a replenishing water supplying line 15 and countercurrently splaying the same to the flue gas flow is arranged between the spray headers 12 and the mist eliminator 9. It is possible to remove, by the two fluid spray nozzle 14, soot with less particle size which cannot be removed by the spray nozzles 13 of the spray headers 12. The constitution becomes simple by using the replenishing water in the dust removing two fluid spray nozzle 14.;COPYRIGHT: (C)2013,JPO&INPIT