| 摘要 |
PROBLEM TO BE SOLVED: To enable removal treatment for adhering dusts to be carried out through an easy operation and further enable an effective purification to be performed without requiring any complex and dangerous work and without damaging facility installed at an exhaust gas processing system.SOLUTION: This invention comprises: a boiler 2a and a fuel economizer 2b to absorb hot heat of exhaust gas generated by a combustion facility 1; a temperature decreasing tower 3 to which exhaust gas fed out of the fuel economizer 2b is fed and performing quick chilling treatment; a dust collector 5 for processing fly ash in the exhaust gas fed out of the temperature decreasing tower 3; a phosphor introduction part 12 having phosphorus compound P fed into an exhaust gas flow passage ranging from combustion facility 1 to the boiler 2a; and a fluid feeding part 11 in which high temperature fluid A is fed into an upstream side of the phosphor introduction part 12. In this invention, phosphorus compound P and high temperature fluid A are fed before falling the combustion facility 1, at the time of stopping, after stopping or at the time of maintenance and inspection.SELECTED DRAWING: Figure 1 |
