MgO对含钛烧结矿矿相结构的影响  

Influence of MgO on Structure of Vanadium-titanium Sinter

作　　者：李志民[1] 刘丽娜[2,3] 段珊[4] 韩秀丽[2,3] 

机构地区：[1]河北联合大学轻工学院,河北唐山063000 [2]河北联合大学矿业工程学院,河北唐山063009 [3]河北省矿业开发与安全技术实验室,河北唐山063009 [4]河北联合大学迁安学院,河北迁安064400

出　　处：《钢铁钒钛》2014年第3期69-73,共5页Iron Steel Vanadium Titanium

摘　　要：采用光学显微镜对承钢不同MgO含量的含钛烧结矿矿物组成及显微结构进行了系统研究。结果表明,随MgO配加量的增加,烧结矿结构由熔蚀结构过渡到粒状结构;金属相含量升高,而黏结相含量降低;烧结矿转鼓指数有所降低,低温还原粉化性能有所改善。建议承钢烧结原料中MgO配加量控制在2.0%左右。The composition and microstructure of vanadium-titanium sinters with different MgO contents were determined by means of polarization microscope. The result shows that,as MgO content increased,the microstructure transferred from melting corrosion to granular structure. Meanwhile,he content of metal phase increased and the content of binder phase decreased. The tumbler strength of sinter decreased,and RDI of sinter improved. The content of MgO in sinter raw material of Chengde Iron ＆ Steel Corporation is proposed at around 2. 0%.

关 键 词：含钛烧结矿 MGO 显微结构 矿物组成 强度 低温还原粉化性能 

分 类 号：TF046.4[冶金工程—冶金物理化学]