Study andApplication of CompositeAgglomeration Process of Fluoric Iron Concentrate

摘要：

An innovative process of preparing ironmaking burden—composite agglomeration process (CAP) has been developed by Central South University. Over traditional sintering or pelletizing process, CAP has a series of advantages, such as rational use of diverse iron-bearing materials, great improvement of the material bed permeability and productivity of sintering machine, obviously low energy consumption, and capability of preparing low basicity charge with good metallurgical performance. In this paper, CAPwas adopted to produce ironmaking burden by using fluoric iron concentrate from Baotou Iron and Steel Corp., the results show that, for traditional sintering process(TSP), the tumbler index (TI) of sinter is only 58.12% at the basicity of 2.5, and TI goes down to 50.75% with decrease of basicity to 1.5. However, TI is able to be improved to 65.84% for CAP by enlarging coke granularity range, adopting divided coke addition, firing with aid of hot air and improving MgO content in mixture. Furthermore, productivity is increased from 1.133 t/m2·h of TSP to 1.5 t/m2·h of CAP at same overall basicity level of 1.5. The process has been put into practice by Baotou Iron and Steel successfully since 2008.

关键词： composite agglomeration process ironmaking burden sintering pelletizing fluoric iron ore

作者: LI Guang-hui ZENG Jing-hua JIANG Tao LI Qian YANG Yong-bin WANG Rui-jun WU Hu-lin

作者单位: School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, Baotou Iron and Steel Corp., Baotou 014010, Nei Monggol, China

会议类型: 国际会议

会议名称: The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)

会议地点: 上海

会议语种:英文

页码: 152-156

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）