| 摘要 |
PROBLEM TO BE SOLVED: To prevent waste gas from becoming harmful and to dissolve the production of dioxins by reacting chlorine based gaseous component in combustion waste gas with a chlorine reaction agent to produce the waste gas free from chlorine based gaseous component burning the waste gas, then injecting and spraying evaporative cooling liq. to the waste gas. SOLUTION: When decomposition reaction (dechlorination treatment) is executed in a heat treatment furnace 1, at first, hot gas is produced by a hot gas producing means 12, and the hot gas is sent into a heating jacket 3 to heat a rotary cylindrical body 2 to a prescribed temp.. Then the matter to be treated and the chlorine reaction agent are mixed, and the mixture is charged into the rotary cylindrical body 2 from a hopper 14, then the mater is discharged from a discharge side duct 10. After that, the waste gas of the heat treatment furnace 1 is sent to a waste gas treatment device 20 through a discharge pipe 16, and the waste gas is burned by a waste gas burning means 21. Then the waste gas after combustion treatment is introduced to a waste gas cooling means 22, and the evaporative cooling liq. (pure water) is sprayed to the waste gas to be rapidly cooled by evaporation latent heat, then clean waste gas is discharged from a stack. |
