COREX预还原竖炉矿焦混合布料规律  

Charging Law of Ore/Coke Mixture for COREX Pre-Reduction Shaft

作　　者：李强[1] 刘栋梁[1] 张丽娟[1,2] 邹宗树[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819 [2]宝山钢铁股份有限公司人才开发院,上海200941

出　　处：《钢铁研究学报》2012年第12期6-10,16,共6页Journal of Iron and Steel Research

基　　金："十二五"国家科技支撑计划资助项目(2011BAE04B01;2011BAE04B02);国家自然科学基金资助项目(51174053;51104037);高等学校博士学科点专项科研基金资助项目(200801451091)

摘　　要：针对宝钢的COREX-3000预还原竖炉炉顶的万向节布料器矿焦混合布料过程进行了试验研究。基于量纲和谐原理推导了相似准数,并按照1∶5比例建立冷态模型装置,定量考察了物料混合比例对料流宽度、料面形状以及径向料堆结构的影响。研究表明:物料混合比例对料流宽度和料面形状的影响较小,对料堆结构影响显著,随着大颗粒质量分数的增加,料堆堆密度降低,料堆空隙率增大。研究结果对于指导COREX竖炉生产过程的布料规律具有参考价值。The burden charging process for the Gimbal distributor of pre-reduction shaft of COREX-3000 process was experimentally studied at establishing 1∶5 scale cold model based on the dimensionless-harmony principle.Then effect of the proportion of mixed material on the flow width,the material burden heap shape and the heap inner structural was quantitatively computed.The results show that： the proportion of mixed material has little effect on the flow width and the material burden heap shape.However,it has significant effect on the inner structure,when the mass fraction of large particles increases,the bulk density of heap is reduced and the porosity of heap is increased.Therefore research achievement can provide a reasonable reference for charging process of shaft in COREX plant.

关 键 词：矿焦混装 布料规律 料堆空隙率 COREX-3000竖炉 冷态试验 

分 类 号：TF554[冶金工程—钢铁冶金]