降低150 t LF精炼电耗的生产实践

特殊钢 ›› 2014, Vol. 35 ›› Issue (1): 33-35.

降低150 t LF精炼电耗的生产实践

裴凤娟，黄重，向华，徐筱芗

安阳钢铁集团股份有限公司技术中心，安阳455004

收稿日期:2013-08-26 出版日期:2014-02-01 发布日期:2022-09-05
作者简介:裴凤娟(1982-),女，硕士(北京科技大学)，工程师,2004年河北理工大学(本科)毕业，炼钢、连铸工艺研究。

Practice of Production on Cutting-down Consumption of Electric Power for 150 t LF Refining

Pei Fengjuan, Huang Zhong, Xiang Hua，Xu Xiaoxiang

Technology Center, Anyang Iron and Steel Co Ltd, Anyang 455004

Received:2013-08-26 Published:2014-02-01 Online:2022-09-05

摘要/Abstract

摘要： 通过提高转炉出钢温度(Q235A/Q235B钢1 660~1 670℃, Q345A/Q345B钢1 665~1 675℃,终点[C]≥0.06%,终点[P]≤0.025%),强化钢包周转管理,出钢过程减少下渣量、加炉渣改质剂或脱硫剂提前造渣脱硫和精确计算合金加入量,控制钢包底吹氩流量防止二次氧化和卷渣等工艺措施,使150 t LF Q235B和Q345 B钢平均送电时间分别从8.10 min和9.39 min降至2.60 min和3.13 min,平均电耗分别从17.33 kWh/t和20.09kWh/t降至5.55 kWh/t和6.69 kWh/t,平均LF精炼时间分别从40 min和42 min降至20.1 min和22.4 min,各项精炼指标均达到要求,取得了较好的经济效益。

Abstract: With the process measures including increasing temperature of liquid in BOF tapping ( steel Q235A/Q35B 1 660 ~ 1 670 °C , steel Q345A/Q345B 1 665 ~ 1 675℃ ,end [C]≥O. 06% , end [P]≤0.025% ) , intensifying ladle turnover administration, reducing down slag amount, adding modifier or desulphurizing agent for slagging and desulphurization in advance and accurately calculating alloys addition during tapping, and controlling ladle bottom argon blowing rate to protect reoxidation of liquid and slag entrapment, the average power on time for refining steel Q235B and steel Q345B in 150 t LF decreases respectively from 8. 10 min and 9. 39 min to 2. 60 min and 3. 13 min, the average electric power consumption reduces respectively from 17. 33 kWh/t and 20. 09 kWh/t to 5. 55 kWh/t and 6. 69 kWh/t, and the average LF refining time decreases respectively from 40 min and 42 min to 20. 1 min and 22. 4 min, all refining indexes are all meet the requirement with getting better economic performance.

裴凤娟, 黄重, 向华, 徐筱芗. 降低150 t LF精炼电耗的生产实践[J]. 特殊钢, 2014, 35(1): 33-35.

Pei Fengjuan, Huang Zhong, Xiang Hua, Xu Xiaoxiang. Practice of Production on Cutting-down Consumption of Electric Power for 150 t LF Refining[J]. Special Steel, 2014, 35(1): 33-35.