100 t转炉二次燃烧氧枪喷头数值模拟及应用研究

炼钢 ›› 2025, Vol. 41 ›› Issue (2): 16-23.

100 t转炉二次燃烧氧枪喷头数值模拟及应用研究

韩永锋¹，齐江华¹，郑淑国²，尹振芝¹，戴智才¹

1.湖南华菱涟源钢铁有限公司，湖南娄底 417009；
2.东北大学冶金学院，辽宁沈阳 110819

出版日期:2025-04-05 发布日期:2025-04-02

Numerical simulation and application research on the secondary combustion oxygen lance nozzle of a 100 t converter

Online:2025-04-05 Published:2025-04-02

摘要/Abstract

摘要： 以100 t转炉供氧参数为基础，通过k-ε模型计算，设计二次燃烧氧枪喷头并描述转炉内流体的湍射流特征。设计副孔直径13.3 mm、倾角38°、8个副孔的二次燃烧氧枪喷头，在氧气流量24 500～26 000 m³/h，工作氧压0.85 MPa条件下应用于工业生产。工业试验表明：二次燃烧氧枪喷头可满足正常的转炉造渣要求；相对常规氧枪喷头，在氧流量上限26 000 m³/h时，二次燃烧氧枪喷头有更好的冶炼效果，有利于控制转炉喷溅和溢渣；二次燃烧氧枪喷头可发挥炉内CO二次燃烧效果，提升钢水温度23.80 ℃，提高废钢比1.48%，有较好的应用效果。

关键词: 复吹转炉, 二次燃烧喷头, 造渣, 热效应

Abstract: Based on the oxygen supply parameters of a 100 t converter, a secondary combustion oxygen lance nozzle was designed and the turbulent jet characteristics of the fluid inside the converter were described through k-ε model calculation. A secondary combustion oxygen lance nozzle with a diameter of 13.3 mm, a tilt angle of 38°, and 8 secondary holes was design. The nozzle was applied in industrial production under the condition of oxygen flow rate of 24 500-26 000 m³/h and working oxygen pressure of 0.85 MPa. Industrial tests showed that the secondary combustion oxygen lance nozzle could meet the normal requirements for converter slagging. Compared to conventional oxygen lance nozzles, the secondary combustion oxygen lance nozzle had better smelting effect at the upper limit of oxygen flow rate of 26 000 m³/h, which was beneficial for controlling converter splashing and slag overflow. The secondary combustion oxygen lance nozzle could exert the secondary combustion effect of CO in the furnace, increase the temperature of molten steel by 23.80 ℃, increase the scrap ratio by 1.48%, and achieve good application results.

Key words: combined blowing converter, secondary combustion nozzle, slagging, heat effect

韩永锋, 齐江华, 郑淑国, 尹振芝, 戴智才. 100 t转炉二次燃烧氧枪喷头数值模拟及应用研究[J]. 炼钢, 2025, 41(2): 16-23.

[1]	崔宝民, 杨杰, 杨晓江, 李哲. 超低碳钢顶渣控制工艺创新探索[J]. 炼钢, 2024, 40(6): 28-31.
[2]	李广帮, 赵亮, 孙深, 曹东, 孙殿东, . 顶底复吹转炉冶炼双相不锈钢的试验研究[J]. 炼钢, 2024, 40(1): 9-13.
[3]	储焰平, 袁晓峰, 葛君生, 封伟华, 杨利彬. 120 t复吹转炉底吹布置对熔池混匀的影响[J]. 炼钢, 2023, 39(3): 25-29.
[4]	李晨晓, 张昀, 王书桓, 薛月凯, 张凯旋, 孙华康, . 石灰石造渣对转炉煤气CO含量影响研究[J]. 炼钢, 2022, 38(4): 36-39.
[5]	边吉明, 胡敏, 刘鑫, 杨建华, 周朝刚, 王书桓, . 基于KR增硅和转炉加硅石造渣的低硅铁水脱磷技术[J]. 炼钢, 2021, 37(6): 9-14.
[6]	李晨晓, 毛文文. 转炉采用石灰石造渣水模拟试验研究 [J]. 炼钢, 2021, 37(5): 12-16.
[7]	魏国立, 朱青德, 胡绍岩, 朱荣, 冯超. 120 t复吹转炉高强度底吹CO₂工业试验[J]. 炼钢, 2021, 37(3): 10-16.
[8]	李勤，王立永，丁立丰，刘延强，范立新. 300t转炉终点碳氧积控制技术研究[J]. 炼钢, 2019, 35(5): 10-16.
[9]	周泉林,杨晓江1，张全1，孙建月2,3，杜文斌2,3，季伟烨2,3，钟良才2,3. 底枪支数和布置对复吹转炉熔池混匀的影响[J]. 炼钢, 2019, 35(4): 12-18.
[10]	朱学谨. 150 t LF生产工艺优化及实践[J]. 炼钢, 2018, 34(6): 11-14.
[11]	薛月凯1，王书桓1，李晨晓1，赵定国1，王黎光1，陈建军2. 60 t转炉炉渣气化脱磷后循环利用试验研究[J]. 炼钢, 2018, 34(1): 20-24.
[12]	赵雷，王金辉，徐国义，尹宏军，王富亮，金百刚. 260 t转炉冶炼极低磷钢的生产实践[J]. 炼钢, 2017, 33(6): 1-1.
[13]	李晨晓1，常凤2，薛月凯1，李宏3. 转炉采用石灰石造渣炼钢操作制度研究[J]. 炼钢, 2017, 33(5): 54-60.
[14]	王新华1,2，李金柱1，刘凤刚3. 转型发展形势下的转炉炼钢科技进步[J]. 炼钢, 2017, 33(1): 1-11.
[15]	朱英雄1,2，钟良才1,2. 转炉炼钢用石灰和石灰石熔化成渣机理及应用[J]. 炼钢, 2017, 33(1): 12-17.