120 t复吹转炉吹氧后氩气搅拌工艺的冶金效果

特殊钢 ›› 2012, Vol. 33 ›› Issue (5): 38-39.

120 t复吹转炉吹氧后氩气搅拌工艺的冶金效果

马琼¹，胡秋芳²，冯捷³

1 兰州资源环境职业技术学院，兰州730021 ；
2 江西冶金职业技术学院，新余338028；
3 河北科技大学材料科学与工程学院，石家庄050018

收稿日期:2012-03-11 出版日期:2012-10-01 发布日期:2022-10-09
作者简介:马琼(1969-),女，高级工程师，冶金系副主任,1991年北京科技大学毕业，冶金技术研究。

Metallurgy Effect of Argon Stirring after Oxygen Blow of an 120 t Top and Bottom Combined Blown Converter

Ma Qiong¹ , Hu Qiufang² ，Feng Jie³

1 Lanzhou Resources and Environment Professional Technology College, Lanzhou 730021 ；
2 Jiangxi Metallurgy Professional Technology College, Xinyu 338028 ；
3 School of Materials Science and Engineering, Hebei Science and Technology University, Shijiazhuang 050018

Received:2012-03-11 Published:2012-10-01 Online:2022-10-09

摘要/Abstract

摘要： 转炉后吹氩气搅拌工艺可以更进一步促进钢液中的碳氧反应,有效降低转炉冶炼终点的钢液氧含量。通过对120 t复吹转炉的后吹氩气搅拌工艺的工业试验结果表明,后吹氩气搅拌可降低转炉终点碳氧积,底吹流量800 m³/h的氩气搅拌5 min后,[O]从吹氩前的897×10^-6,降至400×10^-6;(FeO)从18.5%降至13.7%,平均[S]从0.009%降至0.005%,平均[P]从0.008%降至0.006%;搅拌3～6 min钢液平均温度降低10～20℃。

Abstract: The converter post-blow argon stirring process may further promote carbon-oxygen reaction in liquid, effectively decreases converter end oxygen content in liquid. The results of commercial test of 120 t combined blown converter post-blow argon stirring process show that the post-blow argon stirring process may decreases the converter end carbon-oxygen product, with bottom blowing rate 800 m³/h argon stirring for 5 min, the ［O］decreases to 400 x 10 ^-6 from 897 x 10 ^-6 before argon stirring； the (FeO) decreases to 13. 7% from 18. 5% ； the average ［S］ decreases to 0. 005% from 0. 009% and the average ［P］ decreases to 0. 006% from 0. 008%; after stirring for 3 ~6 min, the average temperature of liquid decreases 10 - 20 °C.

马琼, 胡秋芳, 冯捷. 120 t复吹转炉吹氧后氩气搅拌工艺的冶金效果[J]. 特殊钢, 2012, 33(5): 38-39.

Ma Qiong , Hu Qiufang, Feng Jie. Metallurgy Effect of Argon Stirring after Oxygen Blow of an 120 t Top and Bottom Combined Blown Converter[J]. Special Steel, 2012, 33(5): 38-39.