摘要
基于钢水炉外脱磷工艺,在实验室对钢水炉外脱磷剂的选用开展实验研究.首先确定转炉钢水在管式炉中脱磷时初始磷含量和脱磷剂加入量,然后分别对不同成分和配比的CaO系和BaO系脱磷剂进行研究.实验结果表明,最佳CaO系脱磷剂的配比为w(CaO)∶w(CaF_2)∶w(FeO)=(65～70)∶(15～20)∶(10～20),最佳含FeO的BaO系脱磷剂的配比为w(BaO)∶w(CaO)∶w(CaF_2)∶w(FeO)=(10～20)∶(55～65)∶15∶10,不含FeO的BaO系脱磷剂的最佳配比为w(BaO)∶w(CaO)∶w(CaF_2)=(30～40)∶(55～65)∶(15～20).
Based on the deep dephosphorization process of molten steel out of converter,the various dephosphorization agents for secondary dephosphorization were investigated by laboratory scale experiments. The initial phosphorus content in steel and the amount of dephosphorizing agent added into the tube furnace were firstly determined. And then,the compositions of the CaO-based and BaObased dephosphorization agent were investigated,respectively. The results shows that the best ratio of CaO-based dephosphorizing agent is w( CaO) ∶ w( CaF2 ) ∶ w( FeO) = ( 65-70) ∶ ( 15-20) ∶ ( 10-20) ,the best ratio of BaO-based dephosphorizing agent with FeO is w( BaO) ∶ w( CaO) ∶ w( CaF2 ) ∶ w( FeO) = ( 10-20) ∶ ( 55-65) ∶ 15∶ 10 and the best ratio of BaO-based dephosphorizing agent without FeO is w( BaO) ∶ w( CaO) ∶ w( CaF2 ) = ( 30-40) ∶ ( 55-65) ∶ ( 15-20) .
作者
白雪峰
卓超
黄博
赵志超
孙彦辉
梁新腾
陈炼
陈均
BAI Xue-feng;ZHUO Chao;HUANG Bo;ZHAO Zhi-chao;SUN Yan-hui;LIANG Xin-teng;CHEN Lian;CHEN Jun(Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Pangang Group Research Institute Co. ,Ltd. ,Panzhihua 617000,China)
出处
《工程科学学报》
EI
CSCD
北大核心
2018年第S1期85-92,共8页
Chinese Journal of Engineering
基金
国家自然科学基金资助项目(51574026)
关键词
炉外脱磷
脱磷剂
脱磷率
磷分配比
磷酸盐容量
secondary dephosphorization
dephosphurization agent
dephosphorization rate
phosphorus distribution ratio
phosphate capacity
