260 t顶底复吹转炉喷溅特征的水模型研究和应用

特殊钢 ›› 2022, Vol. 43 ›› Issue (1): 11-15.

260 t顶底复吹转炉喷溅特征的水模型研究和应用

郭龙鑫¹，庞洪轩^1，⁴，郑冰^2，3，刘广强³，王学玺⁵，徐东^2，5

1 河北普阳钢铁集团河北省高塑韧性耐磨钢板技术创新中心，邯郸 056305 ;
2 河北工程大学河北省高品质冷镦钢技术创新中心，邯郸 056038 ;
3 辽宁科技大学土木工程学院，鞍山 114051 ;
4 河北普阳钢铁集团河北省高韧性风塔钢工程研究中心，邯郸 056305 ;
5 河南中原特钢装备制造有限公司技术中心，济源 459008

收稿日期:2021-05-13 出版日期:2022-01-25 发布日期:2023-01-09
通讯作者: 庞洪轩
作者简介:郭龙鑫(1993-)，男，硕士研究生(河北工程大学)，工程师，2016年AＲV加拿大学院(本科)毕业，炼钢和连铸技术研究。
基金资助:
国家自然科学基金联合基金项目 ( NSFC ) ( U20A20272 ) ，河北省钢铁联合基金 (E2020402016) ，辽宁科技大学材料成型与组织性能控制重点实验室 (USTLKFSY201708) 资助

Study of Water Model on Splashing Characteristics of 260 t Top and Bottom Combined Blown Converter and Application

Guo Longxin¹, Pang Hongxuan^1,4, Zheng Bing^2,3, Liu Guangqiang³, Wang Xuexi⁵ ， Xu Dong^2,5

1 Technology Innovation Center for Wear Resistant Steel Plate of High plasticity and High Toughness of Hebei Province, Hebei Puyang Iron and Steel Co Ltd, Handan 056305 ;
2 Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hehei University of Engineering, Handan 056038 ;
3 School of Civil Engineering, University of Science and Technology Liaoning, Anshan 114051 ;
4 Engineering Research Center for High Toughness Wind Tower Steel of Hebei Province, Hebei,Puyang Iron and Steel Co Ltd, Handan 056305;
5 Technology Center,Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd, Jiyuan 459008

Received:2021-05-13 Published:2022-01-25 Online:2023-01-09

摘要/Abstract

摘要： 以260 t转炉为对象,通过几何相似比1∶7水模型研究了供气流量和枪位对炉口、耳轴以及炉壁喷溅量的影响。结果表明:喷溅量的多少与冲击坑的大小存在直接关系,冲击坑越大越深,则喷溅量越大;炉口喷溅量、耳轴喷溅量以及炉壁喷溅量均与吹气流量密切相关,并且随流量的增大呈指数增长;三类喷溅量随枪位升高先增大后减小,在枪位H=40de(氧枪喷孔直径)时达到最大值。生产应用表明,260 t转炉用5孔氧枪对应的拉碳枪位在2.1～2.2 m,吹炼枪位和前期化渣枪位可分别为2.5 m和2.8 m时可避免明显喷溅。

关键词: 大型转炉, 炉口喷溅, 耳轴喷溅量, 炉壁喷溅量

Abstract: Taking 260 t converter as the object,the effect of lance height and gas flow rate on splashing quantities at furnace mouth, trunnion and wall has been stndied by 1：7 geometrically similar water model. The results show that the amount of splash is directly related to the size of the cavity. The amount of splash increases with the increase of the cavity. The splashing amount of furnace mouth, trunnion and wall is closely related to blowing flow, and increases exponentially with the increase of blowing flow. The three kinds of splash increase first and then decrease with the increase of lance height, and reach the maximum as the lance height H is equal to 40de（lance nozzle diamter）. The production application of 260 t converter shows that, with the live-nozzles lance height in catch carbon process being 2. 1～2. 2 m, and the lance position in blowing process and the slag melting process being 2. 5 m and 2. 8 m respectively, the obvious splashing is avoided.

郭龙鑫, 庞洪轩, 郑冰, 刘广强, 王学玺, 徐东. 260 t顶底复吹转炉喷溅特征的水模型研究和应用[J]. 特殊钢, 2022, 43(1): 11-15.

Guo Longxin, Pang Hongxuan, Zheng Bing, Liu Guangqiang, Wang Xuexi, Xu Dong. Study of Water Model on Splashing Characteristics of 260 t Top and Bottom Combined Blown Converter and Application[J]. Special Steel, 2022, 43(1): 11-15.