大方坯连铸温度场动态仿真系统的开发与应用

来源期刊：冶金自动化2009年第2期

论文作者：王国新 张家泉 王玉昌 赵殿清

文章页码：28 - 32

关键词：大方坯连铸； 实时温度场； 动态仿真系统

Key words：bloom continuous casting； real-time temperature field； dynamic simulation system

摘    要：基于凝固传热学基本理论与对大方坯连铸工况进行分析,建立了大方坯动态铸坯温度场跟踪模型、动态工况模型和设备与工艺参数库,开发了大方坯连铸温度场动态仿真系统。利用包钢新建大方坯连铸机仿真系统对20^#,45^#,U75V三个钢种在不同工况下的温度场进行了模拟。射钉实验证明,仿真结果达到工艺要求的精度,仿真系统能够真实准确地模拟连铸浇铸全过程中铸坯温度场分布,再现大方坯浇铸的动态过程,并精确计算大方坯连铸的凝固终点位置,为大方坯动态二冷配水与动态轻压下新技术的在线控制系统的应用提供了重要技术支持。该仿真系统设计界面友好、操作简捷,可作为生产过程中工艺参数优化和离线仿真的有效平台。

Abstract: Based on solidification and heat transfer theory and analysis of operation conditions for bloom casting,dynamic tracking model for real-time temperature field,dynamic operation condition model,and equipment and process parameter database were establisted,and dynamic simulation system for temperature field of bloom casting was developed accordingly.Combining with newly installed bloom caster in Baotou Iron & Steel(Group)Co.,Ltd.,real-time temperature fields in different operating condition for 20^#,45^# and U75V three steel grades were simulated.The simulated results have been validated by rivet pin shooting results.Results show that the simulation system can meet requirement of process precision,simulate temperature field distribution of bloom in whole casting process,and calculate position of final solidification point which is the precondition and guarantee for development and application of modern dynamic secondary cooling water control and dynamic soft reduction control technologies.The simulation system has a friendly human machine interface and is easy to manipulate,and provides an effective simulation platform for optimization of process parameters in production.