CaO-FeO-Al_2O_3-SiO_2渣熔化温度特性实验研究  

Experimental study on the melting temperature characteristic of the CaO-FeOAl_2O_3-SiO_2 slag system

作　　者：邢薇[1] 吴龙[1,2] 李士琦[1] 姚力[1,3] 刘润藻[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]中冶建筑研究总院有限公司,北京100088 [3]唐山钢铁集团有限责任公司,唐山063016

出　　处：《北京科技大学学报》2014年第5期603-607,共5页Journal of University of Science and Technology Beijing

摘　　要：采用FactSage理论计算以及熔点实验对CaO-FeO-Al2O3-SiO2无氟的环保型铁水预处理脱磷渣系的熔化温度特性进行了系统研究,考察了炉渣碱度、Al2O3和FeO质量分数三个因素渣系熔化温度特性的影响.研究结果表明:FeO的质量分数对渣系熔点的影响最大;炉渣的最佳配比为碱度5.5,Al2O3质量分数10%,FeO质量分数45%,该配比下炉渣熔化特性在本实验条件下能够满足铁水预处理用渣的熔化温度特性的要求.ABSTRACT Theoretical calculations by FactSage software and melting experiments were performed to systematically study the melting temperature characteristic of a CaO-FeO-Al2 O3-SiO2 fluoride-free slag system used for hot metal dephosphorization pretreat-ment. Three influence factors of the melting temperature of the slag were researched which were the slag＇s binary basicity, the mass fractions of Al2 O3 and FeO. The results show that the mass fraction of FeO has the greatest impact on the melting temperature of the slag among three factors. The obtained best proportion of the slag is the binary basicity of 5.5, 10% Al2 O3 and 45% FeO. Under the experimental conditions, the melting temperature characteristic of the optimal slag can meet requirements for hot metal dephosphoriza-tion pretreatment.

关 键 词：炼铁 脱磷 渣 熔点 

分 类 号：TF777[冶金工程—钢铁冶金]