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        2021技術進步獎 | 深度脫硫除塵凈化塔技術與裝備

        2022-08-02 14:42:58來源:中國環保產業協會 閱讀量:17901

        導讀:項目成果在常規煙氣參數或低熱值高硫煤煙氣參數條件下,實現出口 SO2濃度≤25mg/m3、粉塵濃度≤5mg/m3。
          在16位院士、30多家提名機構和100余位提名和評審專家的大力支持下,2021年“環境技術進步獎”圓滿完成,31個項目獲得一等獎和二等獎。
         
          據不完全統計,2021年的獲獎成果包括國際專利15項、發明專利471項、實用新型專利等其他知識產權550項;2018-2020年,相關產值高達500億元,實現利潤100億元,充分體現了我國環境技術創新跑出的加速度。
         
          我會將陸續發布獲獎項目簡介,供社會各界人士參考。
         
          (注:所有發布材料均由獲獎單位提供。)
         
          超低排放已在火電廠大規模推廣應用,為達標排放,環保系統配置更為復雜,普遍存在投資、運能和物耗較大問題,與節能互為制衡,經濟性和運行穩定性有待優化改進。同時我國超低排放控制主體已延伸到非電行業,工業鍋爐或爐窯多采用低熱值煤等燃料,爐內工況復雜多變、煙氣污染物波動大,加大了超低排放的難度。提升減排效能、實現低成本超低排放已是我國大氣污染防治從減排為主向減排與質量改善并重轉變過程中的迫切需求。為此該項目開發出深度脫硫除塵凈化塔,實現 SO2 的高效脫除和粉塵的深度凈化,為我國超低排放全面推廣、改善大氣環境質量提供技術支撐。主要技術創新點如下:
         
          1.開發出雙級分區噴淋技術。通過新型氣液再分布器進行氣液導流,使高低 pH 值循環噴淋系統分區獨立穩定運行,在深度脫除 SO2 的同時強化粉塵的協同脫除,提高脫硫劑的利用率和副產物石膏的質量。
         
          2.開發出錯位漿液噴淋技術和壁流再分布技術。結合噴淋試驗和 CFD 數模,獲得高效錯位互補噴淋的噴嘴和噴淋管布置方式,優化上下噴淋層夾角β,實現上下層邊緣噴淋薄弱區相互彌補,結合壁流再分布技術,解決煙氣附壁效應,塔內液滴分布合理、均勻覆蓋塔截面,在保證塔壁噴霧量前提下減少漿液流量,設計時可適當減小液氣比,降低運行能耗。
         
          3.開發出煙氣整流及增效組合技術。基于氣液傳質理論和粉塵捕集規律,研究文丘里棒條格柵層棒條間距、多孔板開孔參數對氣流分布和持液層高度的影響,開發出煙氣整流及增效組合技術增強氣液傳質,強化吸收 SO2,提高粉塵碰撞去除率。
        項目總體研究思路
         
          項目成果在常規煙氣參數或低熱值高硫煤煙氣參數條件下,實現出口 SO2濃度≤25mg/m3、粉塵濃度≤5mg/m3。
        晉能離石大土河項目現場
         
          項目成果節能減排效果好,已推廣應用 85 套,其中火電廠 45 套,鋼鐵、電解鋁、造紙等非電行業 38 套,實現合同訂單 24.65 億元。近三年實現產品銷售 13.83 億元,利稅 6154.02 萬元。產品符合我國燃煤機組、鋼鐵、電解鋁等行業的節能減排改造需求,同時在工業爐窯、水泥等行業也有廣泛的應用前景。
         
          獲獎感言:
         
          張永  浙江菲達環保科技股份有限公司保技術部副總經理/高級工程師
         
          在國家“雙碳”政策的推動下,節能提效、降污減排成為雙碳戰略布局中重要的兩大抓手。隨著我國對環境問題日益重視,SO2和粉塵已成為我國污染物控制排放的重要指標,但傳統的減排技術在高排放標準的制約下,環保系統配置存在投資、運能和物耗較大的問題。此次研制的“深度脫硫除塵凈化塔技術與裝備”不僅達到SO2的高效脫除和粉塵的深度凈化的高標排放要求,提升空氣質量,推進生態環境質量的持續改善;同時兼具投資成本低、改造工期短,場地占用少、物料損耗小等優點,拓寬了我國各行業超低排放治理方案的選擇途徑,開辟了“高環保標準+低排放=低投入+低能耗+低物耗”高效綠色環保新局面,促進了行業整體技術進步。該成果在助力控排企業節能降耗、綠色可持續發展等方面發揮了重要的作用,提供了切實有效的低碳技術路線,為推動“碳達峰”“碳中和”目標如期實現貢獻技術力量。
         
          結語
         
          為鼓勵技術創新,建立以企業為主體、市場為導向、產學研用相結合的環境技術創新體系,經國家科學技術獎勵工作辦公室備案(社會科技獎勵編號0299號),中國環境保護產業協會于2018年設立了面向全國、面向產業的“環境技術進步獎”。該獎項聚焦環境應用技術成果,不授予環境學科基礎研究、環境管理研究等軟科學成果。
         
          歡迎各界環保人士,積極參與2022年度環境技術進步獎相關工作。
         
          原標題:2021技術進步獎 | 深度脫硫除塵凈化塔技術與裝備

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