承德钒钛磁铁矿低碱度烧结试验研究  

Low basicity sintering experiment of Chengde vanadium-titanium magnetite

作　　者：李凤臣[1,2] 孙艳芹[1] 孙丽芬[3] 张振锋[2] 李福民[1] 吕庆[1] 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009 [2]河北钢铁股份有限公司承德分公司,河北承德067102 [3]河北钢铁股份有限公司唐山分公司,河北唐山063020

出　　处：《钢铁研究》2012年第5期1-4,8,共5页Research on Iron and Steel

基　　金：河北省重大技术创新项目(09215139Z)

摘　　要：通过烧结杯试验研究了承德钒钛磁铁矿的低碱度烧结过程和烧结矿质量,探讨了低碱度钒钛烧结矿替代球团的可行性。结果表明:与高碱度钒钛烧结矿相比,低碱度钒钛烧结矿的成品率高、强度好、低温还原粉化性能好,可以满足高炉冶炼要求。但其垂直烧结速度慢,w(FeO)高。碱度控制在0.8,配碳量控制在3.4%～3.6%,配加20%的澳矿粉可以取得较好效果。The sintering process and sinter quality of vanadium-titanium magnetite produced in Chengde District were studied by sintering pot experiment, and the feasibility of using low basicity sinter to substitute pellet was discussed. The results reveal that compared with the high basieity vanadium-titanium sinter, the low basicity vanadium-titanium sinter has better performances, such as higher yield, higher tumbler strength and lower reduction degradation. Its quality can meet the requirements of blast furnace operation. However, the vertical sintering velocity is lower and the FeO content is higher. Suitable parameters of sintering process for the sinter mix with adding 20 % Australian ore fines can be summarized as follows： the basicity is 0. 8, and the carbon content is from 3.4 %to 3.6 %.

关 键 词：钒钛磁铁矿 碱度 烧结过程 烧结矿质量 工艺参数 

分 类 号：TF046[冶金工程—冶金物理化学]