提钒半钢炉外脱磷剂研究

黄博; 孙彦辉; 赵志超; 白雪峰; 陈炼

doi:10.7513/j.issn.1004-7638.2018.03.019

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提钒半钢炉外脱磷剂研究

doi: 10.7513/j.issn.1004-7638.2018.03.019

1. 北京科技大学冶金与生态工程学院, 北京 100083;
2. 北京科技大学钢铁共性技术协同创新中心, 北京 100083;
3. 攀钢集团研究院有限公司, 四川攀枝花 617000

基金项目:

安徽省重大科技专项资助项目(15czz02034)。

详细信息

作者简介:
黄博(1993—),男,在读硕士,主要从事转炉炼钢方面的基础研究工作;E-mail:18810022183@163.com。

通讯作者:
孙彦辉(1971—),男,教授,主要从事洁净钢和连铸的研究工作,E-mail:sun_yanhui@163.com。

中图分类号: TF769
计量
- 文章访问数: 133
- HTML全文浏览量: 35
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2017-09-05
- 网络出版日期: 2023-12-02

Study on the Dephosphorization Agent for Secondary Dephosphorization of Semi-steel without Vanadium

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China;
3. Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China

摘要

摘要: 基于某钢厂提钒转炉研究半钢炉外脱磷工艺,旨在不影响生产进度的情况下增加脱磷工序,从而减轻转炉脱磷压力,降低终点磷含量,以达到超低磷钢的生产水平。通过实验室研究得到了提钒后的半钢在实验室管式炉中脱磷时所需的合适温度、反应时间以及脱磷剂加入量,以此为基础对CaO-Fe₂O₃-CaF₂系、CaO-Fe₂O₃-CaF₂-Al2O3系、Na₂CO₃-CaO-Fe₂O₃-CaF₂系和BaO-CaO-Fe₂O₃-CaF₂系脱磷剂的配比进行研究,找出各系脱磷剂的最佳配比,最后,设计出现场提钒后的半钢炉外脱磷工艺操作,并进行现场试验验证,这为生产实践提供了一定的参考价值。
- 提钒转炉 /
- 半钢 /
- 炉外脱磷 /
- 脱磷剂
Abstract: Based on a vanadium extraction converter,the semi-steel secondary dephosphorization process had been investigated,in order to improve the dephosphorization process without affecting the production schedule,thus reducing the dephosphorization pressure of the converter and decreasing the phosphorus content at the end point so as to produce the ultra-low phosphorus level in steel.The appropriate temperature,the reaction time and the addition of dephosphorizing agent which are used when the vanadium-extracted semi-steel is dephosphorized in the laboratory tube furnace are obtained by laboratory study.Based on these findings,CaO-Fe₂O₃-CaF₂ series,CaO-Fe₂O₃-CaF₂-Al2O3 series,Na₂CO₃-CaO-Fe₂O₃-CaF₂ series and BaO-CaO-Fe₂O₃-CaF₂ series dephosphorization agents are studied to find out their best matching ratio.Then the dephosphsrization process of vanadium-extracted semi-steel outside the furnace has been designed and validated by field test.
- vanadium extraction converter /
- semi-steel /
- secondary dephosphorization /
- dephosphurization agent