铁矿石烧结箅条糊堵现象成因机制  

Mechanisms of grate sticking phenomenon in iron ore sintering

作　　者：李占国[1] 张建良[1] 刘征建[1] 王耀祖 牛乐乐 LI Zhanguo;ZHANG Jianliang;LIU Zhengjian;WANG Yaozu;NIU Lele(School of Metallurgy and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Institute of Artificial Intelligence,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京科技大学人工智能研究院,北京100083

出　　处：《钢铁研究学报》2021年第12期1237-1244,共8页Journal of Iron and Steel Research

基　　金：广东省自然科学基金资助项目;区域联合基金-青年基金资助项目(2020A1515111008)。

摘　　要：箅条糊堵现象是铁矿石烧结生产面临的重要共性问题,给烧结经济技术指标及设备都带来不利影响。为弄清并解决这一问题,首先对箅条糊堵物进行了分类和物相特征分析,随后从原燃料条件、工艺条件和箅条自身性能3个方面综合分析了烧结台车箅条糊堵的形成机制及影响因素,最后基于箅条糊堵物的物相特征及形成机制总结了预防及解决箅条糊堵问题的技术措施和工艺参数控制要求。研究结果对明晰箅条糊堵机制、防治篦条糊堵和促进铁矿石烧结生产稳定有着一定的参考意义。The phenomenon of grate sticking is an important common problem in iron ore sintering production, which has an adverse impact on sintering economic and technical indexes and equipment. In order to clarify and solve this problem, the mineral phase characteristics of grate paste plug were classified and analyzed. Then the formation mechanism and influencing factors of grate paste plug in sintering pallet from three aspects of raw materials conditions, technical parameters and grate properties were analyzed, respectively, and finally the technical measures and control requirements to prevent and solve the grate-sticking problem based on the mineral phase characteristics and formation mechanism of grate paste plug were summarized. The research results have certain reference significance for clarifying the mechanism of grate sticking, preventing grate sticking and promoting the stability of iron ore sintering production.

关 键 词：铁矿石烧结 箅条糊堵 碱金属 液相 形成机制 

分 类 号：TF046[冶金工程—冶金物理化学]