钒钛矿冶炼高炉炉缸黏结物的矿相分布规律  

Distribution rule of adhesive minerals in hearth of blast furnace used for vanadium titanium magnetic iron ore smelting

作　　者：昝日安 郑魁 江凌 郭庆 王炜[1] 徐润生[1] ZAN Ri-an;ZHENG Kui;JIANG Ling;GUO Qing;WANG Wei;XU Run-sheng(l.Kcy Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Pangang Group Research Institute Co..Ltd.,Panzhihua 617000,Sichuan,China;Ironmaking Plant,Xichang Steel Vanadium Co.,Ltd.,Panzhihua Iron and Steel Group,Xichang 615012,Sichuan,China)

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [2]攀钢集团研究院有限公司,四川攀枝花617000 [3]攀钢集团西昌钢钒有限公司炼铁厂,四川西昌615012

出　　处：《钢铁研究学报》2019年第10期859-866,共8页Journal of Iron and Steel Research

基　　金：国家自然科学基金委员会-中国宝武钢铁集团有限公司钢铁联合研究基金资助项目(U1760101);国家自然科学基金资助项目(51704216);国家自然科学基金资助项目(51474164)

摘　　要：采用X射线衍射仪、三维光学数码显微镜和扫描电镜对国内某钢铁企业1 750 m3钒钛矿冶炼高炉炉缸不同部位的黏结物进行矿相分析及微观形貌表征。结果表明,炉缸黏结物中TiO2由炉缸上部至下部呈逐渐增加的趋势,在炉缸下部存在富集现象。高炉炉缸不同位置的黏结物主要矿相和微观形貌均有所不同。钙钛矿在高炉炉缸内从上到下含量呈逐渐递减的趋势,而金属铁和TiC/TiN呈逐渐递增的趋势。炉缸黏结物内高熔点物质主要为TiC/TiN,其次为尖晶石和钙钛矿。The phase analysis and micromorphology of adhesive minerals in hearth of blast furnace(1750 m3) used for vanadium titanium magnetic iron ore smelting, were characterized using X-ray diffractometer, 3 D optical digital microscope and scanning electron microscope. The results show that the content of TiO2 gradually increases from upper part to the lower part of hearth, and enriches in the lower part of the hearth. The main mineral phases and microscopic morphologies of the adhesive materials in different parts of blast furnace hearth are different. The content of perovskite decreases gradually from up to bottom of the blast furnace hearth, while that of iron and TiC/TiN show the opposite trend. The high melting point mineral in adhesive materials is mainly TiC/TiN, followed by the spinel and perovskite.

关 键 词：炉缸黏结物 微观形貌 矿相含量 TiC/TiN 

分 类 号：TF5[冶金工程—钢铁冶金]