150 t转炉终点钢水锰含量分析及控制

炼钢

150 t转炉终点钢水锰含量分析及控制

(上海梅山钢铁股份有限公司 1.技术中心，江苏南京 210039；2.炼钢厂，江苏南京 210039)

接受日期:1900-01-01 出版日期:2014-10-05

Analysis and control of end-point manganese content of liquid steel in 150 t converter

Accepted:1900-01-01 Online:2014-10-05

摘要/Abstract

摘要： 阐述了转炉冶炼过程中锰的变化规律，分析了终点钢水锰含量的影响因素，结果表明在实际生产中铁水锰含量和转炉终点温度对终点钢水锰含量无显著影响，转炉终点钢水氧化性和渣量是影响转炉终点钢水锰含量的2个关键因素。通过采取渐增式供氧、枪位控制、顶底复吹效果控制、终点成分控制、转炉模型应用、加料制度调整等措施，终点钢水锰质量分数提高至0.081 %，节约锰铁合金约0.32 kg/t。

关键词: 转炉, 残锰, 氧含量, 渣量

Abstract: Improving end-point manganese content of liquid steel could reduce manganese alloy consumption and smelting cost. The variation of manganese during BOF smelting was described and the factors of end-point manganese content of liquid steel were analyzed. The results showed that in production process the manganese content of hot metal and the end-point temperature of liquid steel in converter had no significant effect on end-point manganese content, but oxidization of liquid steel and slag quantity was the key factors. By application of a series of measures such as increment oxygen supply, controlling lance position, controlling top-bottom combined blown, controlling end-point content, applying converter model and adjusting charging system, the end-point manganese content of liquid steel was increased to 0.081 % and manganese alloy consumption was saved 0.32 kg/t.

Key words: converter, residual manganese content, oxygen content, slag quantity

郑毅1，胡建光2，陈志平1. 150 t转炉终点钢水锰含量分析及控制[J]. 炼钢.

[1]	李琳1，2，周立磊1，2，李明明1，2，李强1，2，邹宗树1，2. 漩流氧枪应用于转炉炼钢的水模试验研究[J]. 炼钢, 2020, 36(3): 1-6.
[2]	冯春松1，肖步庆1，田晓涛1，胡正彪2，贺东风2. 转炉炼钢最佳废钢比计算模型[J]. 炼钢, 2020, 36(3): 7-12.
[3]	付常伟. 转炉生产含硼中碳钢硼含量精准控制技术研究与实践[J]. 炼钢, 2020, 36(3): 68-72.
[4]	颜慧成1, 丁剑1, 王现周1, 史进强1, 何顺生2, 唐笑宇2. 转炉底吹工艺水模试验与工业应用[J]. 炼钢, 2020, 36(2): 1-5.
[5]	薛永栋1,2，张威风2，辛雪倩2，李春辉2，杨金安2. 50Cr5MoV支承辊用钢氧和夹杂物控制实践[J]. 炼钢, 2020, 36(1): 67-72.
[6]	薛志. 新型旋流氧枪喷头在120 t转炉中的应用与实践[J]. 炼钢, 2019, 35(6): 6-11.
[7]	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.
[8]	何顺生1，杨文远2，李任春1，王明林3，唐文明1，冯超2. 邯宝大型转炉炼钢工艺优化的研究[J]. 炼钢, 2019, 35(5): 16-22.
[9]	成东全，陈兴润. 硅含量对含钛不锈钢全氧和夹杂物的影响[J]. 炼钢, 2019, 35(5): 23-29.
[10]	操瑞宏1，王学林1，孙乐飞1，李杰2，李孟华2，万勇2 . LF精炼脱氧方式对钢中氧含量和夹杂物演变规律的影响[J]. 炼钢, 2019, 35(5): 30-36.
[11]	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.
[12]	张立峰. 关于钢洁净度指数的讨论[J]. 炼钢, 2019, 35(3): 1-12.
[13]	杨俊峰，江腾飞，郝丽霞. 迁钢工业纯铁SYTB生产过程脱磷、脱锰实践[J]. 炼钢, 2019, 35(3): 13-16.
[14]	薛志1，郭伟达1，李强笃1，王忠刚1，高志滨1，杨龙2，姜在彬2，雷雨田2，傅杰2. 高效节能型旋流氧枪喷头的设计与应用[J]. 炼钢, 2019, 35(2): 11-19.
[15]	高闯，沈明钢. 基于无约束小波权重TSVR的转炉炼钢终点静态预测模型[J]. 炼钢, 2019, 35(2): 20-24.