方坯连铸机二冷水动态控制模型的研究  

Research on dynamic control model for secondary cooling zone of billet caster

作　　者：李东辉[1] 邱以清[1] 刘相华[1] 王国栋[1] 

机构地区：[1]东北大学

出　　处：《连铸》2005年第2期21-25,共5页Continuous Casting

摘　　要：研究和开发基于热传输理论的方坯连铸机二冷水在线控制模型-目标表面温度控制模型,实现二冷区凝固状态的动态模拟,各回路配水参数的实时计算。并以首钢三炼钢厂2号连铸机40Cr方坯为研究对象,分析拉速和过热度等参数对铸坯表面温度和凝固状态的影响,同时也讨论了由于某种原因、某段供水量产生波动时,在不同的控制方法下,对后续冷却段温度变化的影响。The dynamic control model for secondary cooling zone of billet continuous caster, based on the heat transfer theory,-target surface temperature control model has been researched and developed. Cooling process is simulated in the secondary cooling zone, and to calculate real - time controlling parameters for every cooling loop in VC + + language. It is useful for the automatic control for billet continuous caster in Capital Iron & Steel Group Company. The influence of casting speed and overheating on the surface temperature and the casting process has been analyzed. In the meantime, it is discussed that the influence of control modes on the surface temperature of succeding cooling loops is different when water supply of the certain loop has fluctuated.

关 键 词：方坯连铸机 动态控制模型 二冷水 铸坯表面温度 凝固状态 传输理论 动态模拟 实时计算 40Cr 控制方法 温度变化 二冷区 炼钢厂 等参数 过热度 供水量 冷却段 拉速 

分 类 号：TF341.6[冶金工程—冶金机械及自动化] TP391.9[自动化与计算机技术—计算机应用技术]