冷压铁矿球团用于高炉低碳炼铁的研究进展  

Research development of cold-pressed iron ore pellets for low-carbon ironmaking in blast furnaces

作　　者：杨志伟 王广 王静松 薛庆国 YANG Zhiwei;WANG Guang;WANG Jingsong;XUE Qingguo(State Key Laboratory of New Technology of Iron and Steel Metallurgy,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《烧结球团》2023年第5期1-8,共8页Sintering and Pelletizing

基　　金：国家自然科学基金资助项目(U1960205);中国五矿科技专项计划项目(2020ZXA01)。

摘　　要：当前,高炉炼铁所用含铁原料多为高碱度烧结矿、氧化球团矿和天然块矿。然而,随着全球铁矿石资源的日渐消耗和炼铁低碳技术的发展以及高炉炼铁资源高效利用等问题,高炉炉料的配比模式也逐步迈向多元化发展。冷压铁矿球团工艺与常规烧结和球团工艺相比,对原料的适应性强、工艺灵活简单,且可以降低制备过程的能源消耗,不失为高炉含铁炉料的一种补充。文章着重简述了冷压铁矿球团的冶金性能,分析了应用冷压铁矿球团对高炉冶炼的影响以及其节能减排效果。结果表明,冷压铁矿球团的冶金性能可基本满足高炉冶炼的需求,使用此球团生产1 t生铁理论上可减少的CO_(2)排放量约为522 kg。At present,most of the iron-bearing raw materials used in blast furnace ironmaking are high alkalinity sinters,oxidized pellets and lump ore.However,with the increasing consumption of global iron ore resources,the development of low-carbon ironmaking technology and the efficient utilization of blast furnace ironmaking resources,etc.,the ratio mode of blast furnace charge has gradually moved towards diversified development.Compared with conventional sintering and pelletizing processes,the cold-pressed iron ore pelletizing process has strong adaptability to raw materials,as well as flexible and simple processes,and can reduce the energy consumption of the preparation process,which is a supplement to the iron-containing charge of blast furnace.The metallurgical performance of cold-pressed iron ore pellets is mainly described,the influence of cold-pressed iron ore pellets on blast furnace smelting and its energy saving and emission reduction effects is analyzed.The results show that the metallurgical performance of cold-pressed iron ore pellets can basically meet the needs of blast furnace smelting,and the production of 1 t of pig iron using this pellet can theoretically reduce CO_(2)emissions by about 522 kg.

关 键 词：冷压铁矿球团 低碳炼铁 含铁炉料 节能减排 

分 类 号：TF046.6[冶金工程—冶金物理化学]