| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a flue gas treating device which can recover water contained in exhaust gas to use as makeup water, thereby can reduce used amount of industrial water or the like and further can recover a useful by- product of Glauber's slat (sodium sulfate). SOLUTION: This device is provided with a supercooler 21 for cooling the exhaust gas to generate condensed water 20 between a wet type desulfurizer 15 and a wet type electric dust collector 16 and a condensed water storage tank 22 for recovering the condensed water 20 generated by cooling the exhaust gas by the supercooler 21. Further the device has a makeup water supplying line 23 for supplying the condensed water 20 recovered in the condensed water storage tank 22 to the wet type electric dust collector 16 as the makeup water, a makeup water recovering line 24 for recovering the makeup water supplied to the wet type electric dust collector 16 and returning the water to the condensed water storage tank 22, an addition line 25 for adding sodium hydroxide to the condensed water storage tank 22 and a Glauber's salt recovering line 26 for recovering the Glauber's slat from the condensed water storage tank 22.</p> |
