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    • 4. 发明申请
    • METHOD AND DEVICE FOR TREATING EXHAUST GAS
    • 用于处理排气的方法和装置
    • WO1997009110A1
    • 1997-03-13
    • PCT/JP1996002529
    • 1996-09-05
    • HITACHI ZOSEN CORPORATIONMAEDA, NobuhiroOBATA, HirokazuOTA, KanjiHAMA, ToshioNAGAI, KenichiMURAKAWA, TadaoKUSANO, Yasuhiro
    • HITACHI ZOSEN CORPORATION
    • B01D53/40
    • B01D53/508B01D53/685B01D2251/40
    • A method for treating exhaust gas comprising the steps of blowing alkali powder into exhaust gas in an exhaust gas duct (4) of refuse incinerator, generating minute water drops through pressure reduction effect and contact with alkali powder pneumatically carrying air by blowing high pressure steam from a steam nozzle (6a) into exhaust gas in the vicinity of the upstream or downstream of a position where alkali powder are blown in the exhaust gas duct (4) between a temperature regulating tower (3) and a bag filter (7) when collecting by the bag filter (7) solid compounds produced through reaction between alkali powder and hydrogen chloride gas and sulfur dioxide in the exhaust gas, improving the reaction efficiency through liquid-solid reaction between what results from a reaction between the minute water drops so produced and acid gas and alkali powder, and promoting gas solid reaction by dispersing alkali powder, whereby promoting desalting and desulfurizing effects so as to reduce the usage of alkali powder, thereby making it possible to reduce the collected amount of fly ash.
    • 一种处理废气的方法,包括以下步骤:在垃圾焚烧炉的废气管道(4)中将碱粉吹入废气中,通过减压作用产生微小的水滴,并通过吹出高压蒸汽与碱性粉末气动携带空气接触 蒸汽喷嘴(6a)在收集温度调节塔(3)和袋式过滤器(7)之间的排气管道(4)中的碱粉末吹送的位置的上游或下游附近的排气中时, 通过袋式过滤器(7)通过碱性粉末与氯化氢气体和废气中的二氧化硫反应产生的固体化合物,通过如此生产的微小水滴之间的反应所产生的结果提高反应效率, 酸性气体和碱性粉末,通过分散碱性粉末促进气体固体反应,从而促进脱盐和脱硫效果,从而减少t 他使用碱粉,从而可以减少粉煤灰的收集量。