| 摘要 |
<p>PURPOSE:To efficiently remove noxious gas in exhaust gas in a dry system, by simple operation such that an alkali powder is sprayed and mixed in exhaust gas to be reacted with noxious gas, and guiding the treated gas to a dust collector through a blower. CONSTITUTION:Exhaust gas containing noxious gas from a waste material incinerator is guided to a reaction chamber 11 and an alkali powder such as slaked lime is sprayed and mixed in the exhaust gas by compressed air to be reacted with noxious gas such as HCl. This powder mixed gas is guided to a blower 12 where the gas and the powder are again mixed under stirring and reacted. Thereafter, the exhaust gas is guided to a dust collecting apparatus 13 to perform dust collection while the purified gas is exhausted from a chimney 14. By this method, noxious gas can be removed with good efficiency by the reduced addition amount of the alkali powder.</p> |
