烧结烟气脱硫脱硝活性炭粉用于高炉喷吹可行性  

Feasibility of sintering flue gas desulfurization and denitrification activated carbon for blast furnace

作　　者：任坤 宁晓钧[1] 赵永彬 苏步新[3] 张建良[1] 王广伟[1] REN Kun;NING Xiaojun;ZHAO Yongbin;SU Buxin;ZHANG Jianliang;WANG Guangwei(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Capital Engineering and Research Incorporatiom Limited,Beijing 100176,China;China Metallurgical Industry Planning and Research Institute,Beijing 100013,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]中冶京诚工程技术有限公司,北京100176 [3]冶金工业规划研究院,北京100013

出　　处：《钢铁研究学报》2022年第11期1197-1202,共6页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(52074029,52174295)。

摘　　要：为了寻找新的高炉可喷吹物代替价格昂贵的无烟煤,将不同配比的烟煤与烧结烟气脱硫脱硝过程产生的活性炭粉进行混合。通过测量不同配比混煤的爆炸性和着火点,以评价其安全性,利用热重分析仪分析其燃烧性。结果表明,活性炭粉可以代替部分无烟煤进行高炉喷吹,此外,烟煤具有强爆炸性,而活性炭粉没有爆炸性,二者混合物中,当活性炭粉质量分数大于40%时没有爆炸性。烟煤的燃烧性优于活性炭粉,二者混合后会发生反协同效应,混煤燃烧性能相较于单煤变差,且混煤燃烧性能随着活性炭粉比例的增加而变差。Different ratios of bituminous coal were mixed with activated carbon powder produced in the process of desulphurization and denitrification of sintering flue gas, in order to find a new kind of blast furnace injection material to replace the expensive anthracite. The safety performance of blend coal with different proportions was evaluated by measuring its explosive performances and ignition temperature. The combustion performance of blend coal was analyzed by TGA. The results show that activated carbon powder can replace part of anthracite coal for blast furnace. In addition, bituminous coal has strong explosive performances, while activated carbon powder has no explosive performances. In the mixture of the two, when the mass fraction of activated carbon powder is greater than 40%, there is no explosiveness. The combustibility of bituminous coal is better than that of activated carbon powder, and there will be a counter synergistic effect after they are mixed. The combustibility of mixed coal is worse than that of single coal, and the combustibility of mixed coal is worse with the increase of the proportion of activated carbon powder.

关 键 词：活性炭 混煤 高炉炼铁 安全性 燃烧性 

分 类 号：TF52[冶金工程—钢铁冶金]