P元素在倾翻炉FeV50冶炼中的走向与控制  

Trend and control of P in FeV50 smelting process of large-scale tilting furnace

作　　者：叶明峰 余彬[1] 黄云 景涵[1] Ye Mingfeng;Yu Bin;Huang Yun;Jing Han(Pangang Group Research Institute Co.,Ltd.,State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources,Panzhihua 617000,Sichuan,China)

机构地区：[1]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《钢铁钒钛》2022年第4期36-41,共6页Iron Steel Vanadium Titanium

摘　　要：结合理论分析、元素平衡统计和工业试验,研究了大型倾翻炉冶炼FeV50流程P元素的走向、分布与控制措施。结果表明:大型倾翻炉FeV50冶炼过程中原料带入的磷氧化物(P_(2)O_(5))能充分被金属铝还原并进入合金中;三氧化二钒和球磨铁粒是P元素的主要输入源,有85.71%的P进入成品合金,13.41%的P进入残合金与细粉,进入金属相的P高达99.12%。控制三氧化二钒中P含量不超过0.0326%和采用钢屑替代球磨铁粒60%以上能控制FeV50中P含量符合A级品要求。Combined with theoretical analysis,element balance statistics and industrial tests,the trend,distribution and control measures of P in FeV50 smelting process of large-scale tipping furnace were studied.The results show that (P_(2)O_(5)) brought in by raw materials during FeV50 smelting in large-scale tilting furnace can be fully reduced by metallic aluminum and enter the alloy.Vanadium trioxide and ball-milled iron particles are the main input sources of P,with 85.71%of P entering the finished alloy,13.41%of P entering the residual alloy and fine powder,and 99.12%of P entering the metal phase.The most effective method to control the P content in FeV50 is the control of P content in vanadium trioxide not exceeding 0.0326%and the replacement of more than 60%of the ball-milled iron particles with steel scraps.

关 键 词：钒铁 倾翻炉 P元素 走向 钢屑 

分 类 号：TF841.3[冶金工程—有色金属冶金]