转炉双渣法脱磷一次倒渣工艺研究

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

First Deslagging Practice of Double Slag Process for Dephosphorization

1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
2. Shaoguan Iron & Steel Group Co., Ltd., Shaoguan 512123, Guangdong, China

摘要: 通过工业试验研究120 t顶底复吹转炉双渣法脱磷一次倒渣时的供氧制度、枪位控制和一次倒渣条件对脱磷的影响。结果表明最佳的一次倒渣工艺条件为:一倒吹氧时间和吹氧量应分别控制在390~420 s和2 300~2 400m³;一倒温度、碱度、FeO以及P₂O₅含量分别控制为1 400~1 420℃、≥ 2.06、≥ 10.97%和2.54%~3.0%时,可以实现一倒钢液磷含量最低为0.032%,脱磷率最高为75.57%。
- 顶底复吹转炉 /
- 脱磷 /
- 双渣法 /
- 一次倒渣
Abstract: The effect of oxygen-supplying system,controlling of lance height,condition of the first deslagging on dephosphorization in 120 t top and bottom combined blown converter was studied based on plant trials using double slag process.The results show that the optimum conditions for dephosphorization are as follows:the time of blowing oxygen and blowing oxygen quantity should be controlled at between 390~420 s and 2 300~2 400 m³ respectively during the first deslagging; Phosphorus content of liquid steel at the first deslagging can be reduced to minimum 0. 032%,and maximum dephosphorization rate reached 75.57% in the industrial experiment when temperature,basicity,FeO,and P₂O₅ were 1 400~1 420℃, ≥ 2.06, ≥ 10.97% and 2.54%~3.0% respectively at the first deslagging.
- top and bottom combined blown converter /
- dephosphorization /
- double slag process /
- at the first deslagging