大方坯连铸机二冷配水控制系统的改造及应用

来源期刊：冶金自动化2010年第4期

论文作者：曾智 张家泉 韩占光 常运合 何庆文 邵明海

文章页码：42 - 46

关键词：大方坯连铸机； 二次冷却； 动态控制； 改造

Key words：bloom； secondary cooling； dynamic control； revamping

摘    要：以莱芜钢铁集团有限公司特殊钢厂大方坯连铸机二次冷却控制系统的改造为背景,介绍了二冷动态配水在线控制模型的开发及应用。控制模型基于坯龄模型和过热度补偿策略,能有效抑制拉速波动带来的影响,保证连铸坯的均匀冷却,从而增强了对浇铸参数的适应性。生产实践证明,该控制模型界面友好、运算快、运行稳定准确,减少了人工干预的环节,连铸坯质量得到改善。

Abstract: To introduce the development and application of dynamic secondary cooling system for bloom casters of Laigang Special Steel Plant.Based on slice casting residence time model and superheat compensation strategy under effective casting speed,a cooling control model is established.The model based cooling control is adaptable to the in situ changing casting parameters and provides uniform cooling on line for the casting process.The cooling control system developed has user-friendly interface to operator and the calculations that the system performs are fast and accurate.Production practice shows that the quality of bloom castings has been evidently improved in the plant since the system revamping.