| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation type combustion method which can prevent malfunction caused by dew condensation and can raise the recirculation rate of exhaust gas, and a combustor. SOLUTION: In an exhaust gas recirculation type combustion method which uses a part of the exhaust gas discharged from a heating furnace 2 as circulating exhaust gas 7 and supplies the circulating exhaust gas7 to the burner 21 of the heating furnace 2 together with air 82 by means of a blower 4 through an exhaust circulation passage 3 so as to perform combustion, the moisture 79 in the circulating exhaust gas 7 is removed by introducing the circulating exhaust gas 7 into the drain trap part 5 arranged in the halfway part of the exhaust circulation passage 3 thereby cooling it, and next, the circulating exhaust gas 7 from which the moisture 79 is removed is preheated by means of a heat exchanger 6, and the preheated circulating exhaust gas 7 is introduced into the heating furnace 2.</p> |
