| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flue gas treatment facility and a method for purging flue gas capable of efficiently discharging deposits in a DPF without requiring any large apparatus and means such as backwashing, blowing-in of compressed air, and heating and burning of soot. <P>SOLUTION: This flue gas treatment facility comprises multiple systems of flue gas treatment devices parallel with a flue gas source. The flue gas treatment device comprises a filter device which is formed in a molded body by laminating pairs of porous corrugated plates and porous flat plates on each other so that the ridge lines of the corrugated plates of the porous corrugated plates can be alternately orthogonal to each other and in which an inflow route and an outflow route for flue gas are formed in the clearance thereof from the porous corrugated plates through the porous flat plates, a bypass flow passage for flue gas purging the deposits deposited in the filter device by the flue gas, and a selector valve selecting either of the flue gas flow passage (filter flow passage) and the bypass flow passage of the filter device. The system of the flue gas treatment device for purging can be selected so that when the deposits deposited in the filter device is purged, the flow velocity of the flue gas flowing in the bypass passage can be larger than the flow velocity of the flue gas in the filter flow passage in treating the flue gas. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
