铁水炉外脱磷效率的影响因素分析  

FACTOR ANALYSIS ON EFFICIENCY OF EXTERNAL FURNACE DEPHOSPHORIZATION OF HOT METAL PRETREATMENT

作　　者：王一囡[1] 刘利[1] 李长荣[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]贵州省材料结构与强度重点实验室,贵州贵阳550003

出　　处：《冶金丛刊》2011年第1期1-3,共3页Metallurgical Collections

基　　金：贵州省科技厅社会发展科技计划项目(SY[2010]3066)

摘　　要：高磷铁水中的磷含量过高,难以满足纯净钢、低磷钢和超低磷钢的冶炼要求。为了提高铁水炉外预处理的脱磷效率,本文从脱磷反应出发,分析了铁水脱磷工艺的热力学和动力学条件,认为增强渣的氧化性和碱度、较大的底吹强度以及保持适当的低温是提高脱磷效率的关键。High phosphorus hot metal can not meet the smelting requirements of pure steel,low phosphor steel and lowest phosphorus steel due to its high phosphorus content.Based on dephosphorization reaction,the thermodynamics and kinetics condition of dephosphorization process of hot metal was anlysed in order to improve the efficiency of external furnace dephosphorization of hot metal pretreatment.The key point of fast dephosphorization were increasing oxidizability and basicity of slag,strengthening intensity of bottom blowing and keeping proper low temperature.

关 键 词：高磷铁水 铁水预处理 炉外脱磷 

分 类 号：TF713.3[冶金工程—钢铁冶金]