铁矿粉烧结过程CO减排探讨

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英文篇名：Discussion on CO emission reduction in iron ore fines sintering process 作者：裴元东 ; 廖继勇 ; 张俊杰 ; 张效鹏 ; 吴胜利 英文作者：Pei YuANDong;Liao Jiyong;Zhang Junjie;Zhang Xiaopeng;Wu Shengli;Zenith Steel Group Co.,Ltd.;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;Zhongye Changtian International Engineering Co.,Ltd.;Technology Research Institute of Shougang Group Co.,Ltd.; 关键词：铁矿粉 ; 烧结 ; CO ; 减排 英文关键词：iron ore fines;;sintering;;CO;;emission 中文刊名：SJQT 英文刊名：Sintering and Pelletizing 机构：中天钢铁集团有限公司;北京科技大学冶金与生态工程学院;中冶长天国际工程有限责任公司;首钢集团有限公司技术研究院; 出版日期：2019-02-15 出版单位：烧结球团 年：2019 期：v.44 语种：中文; 页：SJQT201901016 页数：5 CN：01 ISSN：43-1133/TF 分类号：73-77

摘要

随着烧结环保形势的严峻,除SO_2、NO_X、颗粒物和二噁英外,铁矿粉烧结排放CO的问题逐步引起广泛重视。针对烧结过程排放CO高的问题,首先分析了烧结过程产生CO的机理,然后从源头削减、过程控制和末端治理全流程探讨了烧结减排CO的具体方案。认为采取各项措施降低烧结固体燃耗、提高燃料的完全燃烧程度是烧结减排CO的关键,点火介质用高炉或转炉煤气时应提高煤气的完全燃烧程度。同时,未来有必要探索烧结高CO含量风箱废气的专门处理工艺和低成本的CO末端治理工艺。
        With the severe sintering environment protection situation, besides the problems of SO_2, NO_X, particulate and dioxin, the problem of CO emission from iron ore sintering has been paid more and more attention. In view of high CO emission during sintering process, the mechanism of CO generation in sintering process is analyzed first, and then the specific scheme for CO reduction in sintering process is analyzed from the whole process including source reduction, process control and end treatment. It is considered that the key to reduce CO emission is to take various measures to reduce the solid fuels consumption and improve the degree of complete combustion of fuels, and it is noteworthy that when blast furnace or converter gas is used as sintering ignition medium, the complete combustion degree of these gases should be increased. Meanwhile, it is necessary to explore special treatment technology for windbox waste gas with high CO content and cost effective terminal treatment technology for reducing CO emission in the future.

引文

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