“臭氧氧化+循环流化床”法烧结烟气净化技术的应用
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摘要
烧结烟气排放量大,含有的有毒有害物质浓度高。为加强环境保护,梅钢三号烧结机对原有的湿法脱硫装置进行了改造,采用"臭氧氧化+循化流化床"于一体的烧结烟气综合治理技术。生产实践结果表明:系统简洁,投资小,可靠性高;系统运行稳定,效果良好,脱硫、脱硝、除尘效率高,出口烟气中SO_2、NO_x、粉尘浓度分别降至35 mg/m~3、100 mg/m~3、5 mg/m~3以下;系统运行成本较低,具有一定的优势。该系统的成功运行,对烧结行业烟气的综合治理提供了较好地示范作用。
The sintering process abounds with a lot of flue gas emissions containing high concentration of toxic and harmful substances. In order to strengthen environmental protection,the existing wet desulphurization device was modified for Meisteel No. 3 sinter machine and the integrated sintering flue gas treatment technology of"ozone oxidation and circulating fluidized bed"was adopted. The results of production practice show that,the system is simple,the investment is low; the system runs stably with good effect and high desulphurization,denitrification and dust removal efficiency,and the concentration of sulfur dioxide,nitrogen oxide and dust in the outlet gas decreases to 35 mg/m~3,100 mg/m~3 and 5 mg/m~3 respectively. The system has certain advantages due to its low operating cost,and the successful operation of the system provides a good demonstration for the comprehensive control of sintering flue gas in the industry.
The sintering process abounds with a lot of flue gas emissions containing high concentration of toxic and harmful substances. In order to strengthen environmental protection,the existing wet desulphurization device was modified for Meisteel No. 3 sinter machine and the integrated sintering flue gas treatment technology of"ozone oxidation and circulating fluidized bed"was adopted. The results of production practice show that,the system is simple,the investment is low; the system runs stably with good effect and high desulphurization,denitrification and dust removal efficiency,and the concentration of sulfur dioxide,nitrogen oxide and dust in the outlet gas decreases to 35 mg/m~3,100 mg/m~3 and 5 mg/m~3 respectively. The system has certain advantages due to its low operating cost,and the successful operation of the system provides a good demonstration for the comprehensive control of sintering flue gas in the industry.
引文
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[10]曹忠露,肖鹏,日比野诚.亚硝酸钙阻锈剂的应用研究综述[J].混凝土,2011,10(264):49-54.
[11]蒋文举.烟气脱硫脱硝技术手册[M].北京:化学工业出版社,2006:358-359.
[12]李继莲.烟气脱硫实用手册[M].北京:中国电力出版社,2008:204-205.
[2]吴青贤,魏进超.湛江钢铁1#烧结烟气净化装置的设计与运行[J].烧结球团,2017,42(6):1-4.
[3]赵利明.活性炭烟气净化技术在宝钢股份宝山基地3#烧结机的应用[J].烧结球团,2017,42(6):5-10.
[4]马洛文.宝钢4号烧结机低碳环保生产实践[C]//2016年度全国烧结球团技术交流年会暨活性炭烟气多污染物协同治理技术研讨会论文集.长沙:烧结球团编辑部,2016:28-31.
[5]廖继勇,周末,李小敏.活性炭烟气净化技术在烧结烟气治理领域的应用[J].烧结球团,2012,37(4):61-63.
[6]廖美春,黄志明.烧结烟气脱硫技术工业化应用现状及趋势[J].冶金管理,2009,(6):56-58.
[7]党玉华,齐渊洪,王海风.烧结烟气活性炭脱硫研究[J].环境工程,2012,28(3):66-69.
[8]郜学.我国烧结球团行业脱硫现状及减排对策[J].烧结球团,2008,33(3):1-6.
[9]安忠义,詹茂华. CFB技术用于烧结烟气脱硫脱硝的可行性探讨[J].烧结球团,2015,40(6):53-58.
[10]曹忠露,肖鹏,日比野诚.亚硝酸钙阻锈剂的应用研究综述[J].混凝土,2011,10(264):49-54.
[11]蒋文举.烟气脱硫脱硝技术手册[M].北京:化学工业出版社,2006:358-359.
[12]李继莲.烟气脱硫实用手册[M].北京:中国电力出版社,2008:204-205.