| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission control device in which exhaust emission is treated in stages to improve removal efficiency of contaminants without damaging a main filter having active carbon fiber even in an atmosphere in which fire starts. SOLUTION: A body 4 having an inflow port 5 and a discharge port thereof opened is provided with a washing tank 3 for storing washing liquid 10 in the bottom parts thereof. An almost cylindrical frame body 21 where a grid-shaped inner skin shell part 27 is nearly coaxially installed in an almost cylindrical outer skin shell part 25 in which plural vent holes are made is formed. An auxiliary filter 22 formed into nonwoven fabric of metal fiber and a main filter formed into woven fabric of active carbon fiber are held between the outer skin shell part 25 and the inner skin shell part 27. The main filter is arranged on the inner periphery side from the auxiliary filter, protected from flames. A filter body 20 is arranged in the body 4 so that a part thereof is immersed in the washing liquid 10, that the outer peripheral surface thereof airtightly communicates with the inflow port 5, and that it can be freely rotatable by an electric motor 34. Contaminants in an exhaust emission wind flowing through the filter body 20 are separated by turbulent flow of the auxiliary filter 22 while washed with the washing liquid 10 and are adsorbed and separated by the main filter. |
