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铅薄板单辊连铸机水冷辊的数值模拟与设计研究
Numerical Simulation and Design of Water-cooled Roll Temperature Field in Lead Thin Plate Continuous Casting Machine
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- DOI:
- 作者:
- 郭伊利，周 雄，徐家乐，张庆硕，刘卓灵
GUOYili, ZHOU Xiong, XU Jiale, ZHANG Qingshuo, LIU Zhuoling
- 作者单位:
- 重庆科技大学冶金与动力工程学院，重庆401331
School of Metallurgy and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
- 关键词:
- 单辊薄板连铸机；水冷辊；铅薄板；ANSYSFluent；数值模拟；冷却性能
single-roll thin slab continuous casting machine; water-cooled roll; lead thin slab; ANSYS Fluent; numerical simulation; cooling performance
- 摘要:
- 水冷辊是铅薄板单辊连铸技术中的核心部件，其冷却效果直接影响铅薄板的厚度控制和质量均匀性。基于 单辊连铸工艺，采用ANSYSFluent软件对水冷辊进行三维数值模拟，分析了不同出水孔数量对水冷辊温度场和流场的 影响。 结果表明，水冷辊内部流场的分布与出水孔数量密切相关，24孔设计在冷却效果和温度均匀性方面表现最佳，能 够将铅薄板的厚度控制在1mm左右，减少温度波动。 实验验证了模拟结果，设计的水冷辊样机生产的铅薄板厚度均 匀、表面光滑，满足生产要求。A water-cooled roll is the core component of single-roll continuous casting technology for lead sheets, and its cooling effect directly affects the thickness control and quality uniformity of lead sheets. On the basis of the single roll continuous casting process, a three-dimensional numerical simulation of a water-cooled roll was carried out via ANSYS Fluent software, and the influences of different numbers of water outlet holes on the temperature field and flow field of the water-cooled roll were analysed. The results show that the distribution of the flow field inside the water-cooled roll is closely related to the number of water outlet holes, and the 24-hole design has the best performance in terms of the cooling effect and temperature uniformity, which can effectively control the thickness of the lead sheet and reduce the temperature fluctuation. The simulation results are verified by experiments. The lead sheet produced by the designed water-cooled roll prototype has a uniform thickness and smooth surface, which can meet the production requirements.