添加剂降低烧结烟气中CO含量的试验行为  

Experimental behavior of additives to reduce CO content in sintering flue gas

作　　者：程扬 李杰 杨爱民 朱金伟[2] 崔宇韬[2] 袁玉宝 CHENG Yang;LI Jie;YANG Ai-min;ZHU Jin-wei;CUI Yu-tao;YUAN Yu-bao(College of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,Hebei,China;Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Fuzhou Ruizhao Energy Saving and Environmental Protection Technology Co.,Ltd.,Fuzhou 350600,Fujian,China)

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063210 [2]中国环境科学研究院,北京100012 [3]福州锐兆节能环保科技有限公司,福建福州350600

出　　处：《中国冶金》2020年第12期99-104,共6页China Metallurgy

基　　金：国家自然科学基金资助项目(51974131);河北省优秀青年科学基金资助项目(E2018209248)。

摘　　要：针对烧结烟气中CO质量分数高的问题,采用烧结杯试验的方法,配加不同种类的添加剂,研究了添加剂对烧结烟气中CO质量分数及其对烧结矿冶金性能的影响规律。试验结果表明,配加1号~4号添加剂后,烧结烟气中的CO质量分数较基准样分别降低了29.60%、27.44%、17.30%、14.98%。其中,起强化烧结与氧化作用的1号添加剂和催化氧化作用的2号添加剂效果较佳;配加添加剂在降低烧结烟气中CO质量分数的同时可以改善烧结矿冶金性能;特别是配加1号、2号添加剂后,烧结矿转鼓指数较基准样分别提高了3.00%、1.66%,成品率较基准样分别提高了2.55%、3.08%。Aiming at the problem of high CO mass fraction in sintered flue gas, the sinter cup test method was used to add different kinds of additives. The influence of additives on the CO mass fraction in sintered flue gas and its metallurgical properties was studied. The test results showed that after adding No.1 to No.4 additives, the CO mass fraction in the sintering flue gas is reduced by 29.60%, 27.44%, 17.30% and 14.98%,respectively compared with the reference sample. Among them, the additive No.1, which plays the role of strengthening sintering and oxidation, and the additive No.2, which plays the role of catalytic oxidation, have better effects. Adding additives can improve metallurgical properties of sintered ore while reducing CO mass fraction in the sintering flue gas. Especially after adding No.1 and No.2 additives, the drum index of sintered ore is increased by 3.00% and 1.66%, respectively, and the yield rate was increased by 2.55% and 3.08%, respectively, compared with the reference sample.

关 键 词：CO减排 烧结烟气 添加剂 冶金性能 转鼓指数 成品率 

分 类 号：TF046.4[冶金工程—冶金物理化学]