中国机械工程2016，Vol.27Issue(12)：1643-1647,5.DOI:10.3969/j.issn.1004-132X.2016.12.015
异形坯连铸离线动态二冷控制模型的研究与开发
Research and Development of an Off-line Dynamic Secondary Cooling Control Model for Beam Blank Continuous Casting
摘要
Abstract
A 2D solidification and heat transfer model for the secondary cooling process of beam blank continuous casting was established based on the solidification and heat transfer theory.The 2D space region of the beam blank section was discretized by using the non-equidistant grid,and the heat transfer equations was discretized based on the algorithm of explicit finite difference.The PID control model was established to control beam blank temperature.A dynamic distribution of water control software was developed for secondary cooling process in beam blank continuous casting with Visual Basic 6.0.When the casting speed,pouring temperature and casting steel grade changed,this software might track,record and display the informations of the beam blank in secondary cooling section and dynamically distribute water flow rate for different sections of secondary cooling to maintain the sta—bility of the temperature distribution of the casting blank.This software is of very user-friendly,ver—satile and the simulation results prove that the control effects are desirable.This software lays the foundations for the development of dynamic secondary cooling control system for beam blank.关键词
异形坯/二次冷却/有限差分法/动态配水/PID控制技术Key words
beam blank/secondary cooling/finite difference method(FDM)/dynamic distribu-tion of water/PID control technology分类
矿业与冶金引用本文复制引用
黄文,连天龙,张兴中,杨拉道,高琦..异形坯连铸离线动态二冷控制模型的研究与开发[J].中国机械工程,2016,27(12):1643-1647,5.基金项目
国家自然科学基金资助项目(51275446) （51275446）
河北省引进留学人员资助经费资助项目(2013005012) （2013005012）
