| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-dust exhaust gas heat recovery processing device for being compactly disposed in a flue of a high dust concentration atmosphere, and exchanging heat at a high flow rate. <P>SOLUTION: In this exhaust gas processing device wherein the air B is heated by heat exchange with an exhaust gas 23 discharged from a coal-fired boiler 11 by an air preheater (AH) 12, then supplied to a dust collecting device (dry type EP) 14 to remove dust components, desulfurized by a desulfurizer 15, and discharged to the external as a purified gas through a chimney, a thin box-type heat recovering device 20 provided with a plurality of thin heat exchanging portions along the flowing direction of the exhaust gas 23, is disposed between the air preheater 12 and the dust collecting device 14, and a liquid film for heat exchange is allowed to flow down on inner wall surfaces of the thin heat exchanging portions. <P>COPYRIGHT: (C)2009,JPO&INPIT |
