辽宁科技大学 材料与冶金学院,鞍山 114051
李博澍(2000—),男,硕士;E-mail:13102153071@163.com
赵巍(1968—),女,博士,教授,硕士生导师;E-mail:hxliu0490@sina.com
收稿:2026-01-08,
修回:2026-02-20,
录用:2026-02-26,
网络首发:2026-04-07,
移动端阅览
李博澍,赵巍.浸渍管管径比对RH精炼效果影响的数值模拟[J].特殊钢,
Li Boshu,Zhao Wei.Numerical Simulation of the Influence of Immersion Tube Diameter Ratio on RH Refining Performance[J].Special Steel,
为提高RH真空精炼装置效率,建立包含真空室、浸渍管、钢包的150 tRH真空精炼装置的物理模型,采用欧拉-欧拉方法进行数值模拟,研究了不同下降管、上升管管径比的RH装置对循环精炼效果的影响。分析了不同管径比(1~1.4)下各位置流速、主截面流场、对钢包底部搅动效果、循环流量、均混时间。结果表明,增大下降管管径可提升循环流量(390~492 kg/s),均混时间减少(286~269 s),钢包内流场向两浸渍管间区域集中,真空室流场有所改善,钢包底部钢液活跃区域占比降低(39%~19%)。综合考虑,下降管与上升管管径比为1.2时效果最优,可兼顾循环流量提升与良好的钢液搅动能力。
To enhance the efficiency of the RH vacuum refining system a physical model of a 150 t RH vacuum refining system incorporating a vacuum chamber, snorkels, and ladle was established. The Euler-Euler two-fluid method was adopted for numerical simulations to systematically investigate the effects of different downcomer-to-riser diameter ratios on the circulation characteristics and refining performance of the RH device. The flow velocity at each position, flow field of the main cross-section, agitation effect on the molten steel at the ladle bottom, circulation flow rate, and mixing time under different diameter ratios(1-1.4) were analyzed for various diameter ratios. The results show that increasing the downcomer diameter significantly enhances the circulation flow rate(390 kg/s-492 kg/s), while the mixing time decreases (286 s–269 s). The flow field in the ladle tends to concentrate in the region between the two snorkels, the flow field in the vacuum chamber improves, and the proportion of the active region of molten steel at the ladle bottom decreases (from 39% to 19%). Considering all factors, the optimal diameter ratio of the downcomer to the riser is 1.2, which can balance the improvement of the circulation flow rate and maintain excellent molten steel stirring capability.
丁豹 . 离子火焰检测技术在现代化RH精炼技术中的实际应用 [J]. 冶金与材料 , 2022 , 42 ( 3 ): 122 - 123 .
欧洪林 , 包燕平 , 岳峰 , 等 . RH真空精炼过程循环流量的水模型研究 [J]. 特殊钢 , 2011 , 32 ( 3 ): 9 - 11 .
朱苗勇 , 沙 骏 , 黄宗泽 . RH真空精炼装置内钢液流动行为的数值模拟 [J]. 金属学报 , 2000 , 36 ( 11 ): 1175 - 1178 .
Kuwabara T , Umezawa K , Mori K J , et al . Investigation of decarburization behavior in RH-reactor and its operation improvement [J]. Transactions of the Iron and Steel Institute of Japan , 1988 , 28 ( 4 ): 305 - 314 .
贺庆 , 刘浏 , 李相臣 , 等 . 浸渍管形状对RH精炼中钢液流动和混合特性的影响 [J]. 钢铁 , 2013 , 48 ( 2 ): 23 - 28 .
贺庆 , 刘浏 . RH设备形状对钢液流动和混合特性的影响 [J]. 炼钢 , 2013 , 29 ( 3 ): 36 - 40 .
Ling H , Zhang L , Liu C . Effect of snorkel shape on the fluid flow during RH degassing process: mathematical modelling [J]. Ironmaking & Steelmaking , 2018 , 45 ( 2 ): 145 - 156 .
张鉴 , 成国光 , 杨念祖 , 等 . 单嘴精炼炉处理轴承钢的脱氧工艺 [J]. 钢铁 , 1995 , 30 ( 5 ): 19 - 21 .
樊世川 , 李宝宽 , 赫冀成 . 多管真空循环脱气系统循环流动模型 [J]. 金属学报 , 2001 , 37 ( 10 ): 1100 - 1106 .
Li B K , Tsukihashi F . Modeling of circulating flow in RH degassing vessel water model designed for two- and multi-legs operations [J]. ISIJ International , 2000 , 40 ( 12 ): 1203 - 1209 .
许涛 . RH过程流动行为的数值物理模拟及浸渍管结构优化 [D]. 沈阳 : 东北大学 , 2015 .
任志峰 , 罗志国 , 邹宗树 . 不同弓形浸渍管RH钢液流动行为的物理模拟 [J]. 过程工程学报 , 2020 , 20 ( 1 ): 27 - 34 .
孙国敏 , 罗志国 , 任志峰 , 等 . 弓形浸渍管RH混合传质均匀性的数值模拟 [J]. 材料与冶金学报 , 2021 , 20 ( 3 ): 159 - 166 .
李洪亮 . 弯月形截面浸渍管RH精炼过程的数值模拟 [D]. 沈阳 : 东北大学 , 2022 .
Chen G J , He S P , Li Y G , et al . Investigation of gas and liquid multiphase flow in the rheinsahl-heraeus (RH) reactor by using the Euler-Euler approach [J]. JOM , 2016 , 68 ( 8 ): 2138 - 2148 .
Geng D Q , Zheng J X , Wang K , et al . Simulation on decarburization and inclusion removal process in the ruhrstahl-heraeus (RH) process with ladle bottom blowing [J]. Metallurgical and Materials Transactions B , 2015 , 46 ( 3 ): 1484 - 1493 .
区 铁 , 区 铁 , 刘建功 , 等 . RH法钢水定向循环流量操作模型的研究 [J]. 金属学报 , 1999 , 35 ( 4 ): 411 - 415 .
0
浏览量
0
下载量
0
CSCD
0
CNKI被引量
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621