涟钢CSP轧后冷却控制系统改造

来源期刊：冶金自动化2011年第4期

论文作者：李建华 张南风 李海军 刘伟嵬 王昭东

文章页码：24 - 27

关键词：热轧带钢； 冷却过程； 模型优化； 卷取温度

Key words：hot rolling strip； cooling process； model optimization； coiling temperature

摘    要：热轧带钢卷取温度的控制精度是保证带钢表面质量和板形良好的关键因素。本文介绍了湖南华菱涟钢薄板公司CSP轧后冷却控制系统改造方案。以涟钢CSP轧后冷却控制系统为研究对象,基于传热学基本原理建立了具有非线性结构特征的热轧带钢轧后冷却过程控制的温度数学模型,并采用最小二乘法对模型参数进行了回归优化处理。实践结果证明,改造优化后冷却温度控制系统的计算结果与实测结果吻合较好,满足现场要求,取得了较好的控制效果。

Abstract: The coil temperature of hot rolling strip is the key factor for the surface quality and profile.The cooling control system reconstruction in LY Steel CSP is introduced in this paper.Based on the LY Steel CSP cooling control system,and according to the traditional heat transfer theory,the non-linear model used for laminar cooling process control is constructed.Model parameter regression for water cooling is also studied during the commission.The practice result indicates that the calculation accuracy of the reconstructed cooling control system is good enough to fit the demand of production.At the same time,the model coefficient is optimized and the control effect is improved.