FLUE GAS DESULFURIZATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To prevent the deterioration of desulfurizing performance by branching a tip part of an absorbing liquid slurry feed pipe into the plural number in the width direction of the absorption column in the desulfurization by spraying an absorbing liquid in the bottom of an absorption column from a spray nozzle at the top part of the absorption column to be brought into contact with a waste gas. SOLUTION: Relating to a flue gas desulfurization apparatus, the absorbing liquid 1 in a liquid storage part 1a fold at the bottom of the absorption column 3 is pumped up by a circulating pump 4 while being stirred by a stirrer 6 and sprayed from the spray nozzle 2 arranged at the upper part of the absorption column 3 to be in contact with the waste gas. An absorbent slurry is supplied in the absorption column 3 from an absorbent slurry supply pipe 7, the tip part of which is branched into the plural number in the width direction of the absorption column 3. As a result, the absorbent slurry is supplied to the liquid storage pot 1a from plural places in the width direction of the absorption column 3 to be uniformly mixed in the absorbing liquid and then, unbalance of the concentration of the absorbing liquid 1 in the width direction in the liquid storage part 1a is not generated and the deterioration of desulfurizing performance is prevented.