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                                                                                                                                              業內資訊

                                                                                                                                              白煙氣形成原因及煙氣脫白工藝介紹

                                                                                                                                              發布時間:2018-9-13 9:08:03訪問次數:

                                                                                                                                                     煙氣脫硫脫硝技術是應用于多氮氧化物、硫氧化物生成化工工業的一項鍋爐煙氣凈化技術。氮氧化物、硫氧化物是空氣污染的主要來源之一。故應用此項技術對環境空氣凈化益處頗多。

                                                                                                                                                     

                                                                                                                                              目前國內絕大多數燃煤電廠或是其它化工行業的煙氣在排放前大都進行了濕法脫硫,溫度降至一定溫度,此時的煙氣通常是飽和濕煙氣,煙氣中含有大量水蒸汽,水蒸汽中含有較多的溶解性鹽、SO3、凝膠粉塵、微塵等(都是霧霾的主要成分)。如果煙氣由煙囪直接排出,進入溫度較低的環境空氣中,由于環境空氣的飽和濕度比較低,在煙氣溫度降低過程中,煙氣中的水蒸汽會凝結形成濕煙羽。今日歐斯卡自動化專家為大家講解煙氣脫白的一種工藝。

                                                                                                                                              常用處理工藝由于地域的不同,氣候條件相差很大。比如平均溫度、濕度,氣壓相差很大,采用的方法技術也不盡相同。還有各企業的工藝流程條件不同、余熱資源不同、投資要求不同,采取的消白方法不同等因素,工藝方案千變萬化有很大的差別,但滿足用戶要求是技術方案的根本要求。根據濕煙羽形成及消散的機理,目前常用的方法歸納為:煙氣加熱技術、煙氣冷凝技術、煙氣先冷凝再熱技術及各種方法的組合技術。以上這些技術的組合總的來講達到的目的是消白、節能、投資低,即“性價比”高。

                                                                                                                                              歐斯卡自動化的煙氣脫白工藝在消除感官的白色煙羽的同時還實現了以下幾點:升溫過程利用煙氣余熱達到節能的目的;利用循環水水洗降溫,提高了脫硫的吸收效率;冷凝過程產生冷凝水補充了循環水;減少了可溶性鹽等總顆粒物的排放。

                                                                                                                                              歐斯卡自動化憑借幾十年的化工經驗,以實體工業求發展,以低碳經濟、變廢為寶為理念,從根本上解決了高耗能和二次污染問題,使超低排放科技化、系統化。 

                                                                                                                                              歐斯卡自動化愿與社會各界聯合起來,共負社會和歷史的責任,推進人類文明的進步。


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