热轧板坯加热温度场数值模拟及应用

钢铁, 2009, 44(1): 43-0.

热轧板坯加热温度场数值模拟及应用

李俊洪 , 林霞 , 刘勇 , 温亚成 , 李卫平 , 李玉和

1.1.攀枝花钢铁研究院, 四川攀枝花 617000；2.攀钢热轧厂, 四川攀枝花 617062； 3.攀枝花学院, 四川攀枝花 617000

1.1.Panzhihua Iron and Steel Research Institute, Panzhihua 617000, Sichuan, China

2. 2.Hot Rolling Mill of PZH Steel, Panzhihua 617062, Sichuan, China

3. 3. Panzhihua University, Panzhihua 617000, Sichuan, China

关键词：步进梁式加热炉;板坯加热;温度场;优化

Numerical Simulation of Slab Temperature Field During Reheating and Its Application

LI Junhong , LIN Xia , LIU Yong , WEN Yacheng , LI Weiping , LI Yuhe

Keywords： walking beam heating furnace;slab reheating;temperature field;optimization

建立了三段步进梁式加热炉板坯加热过程数学模型，用全隐式有限差分法对数学模型进行离散化，开发了板坯温度场计算模型。采用该模型重点研究了板坯宽度对板坯中心温度变化过程的影响规律。研究结果表明，对于厚度为200 mm的板坯，当板坯宽度大于600 mm时，板坯中心温度变化过程与板坯宽度无关。以此为根据，优化了板坯加热工艺，达到了提高生产效率并节能减排的目的。

A mathematical model for slabs heated in a 3zone walking beam reheating furnace was established．The finite difference method was used for discretion of the mathematical model and a computational software was developed．The influence of the slab width on slab temperature was studied. It was found that for 200 mmthick slab, when the width was above 600 mm, the slab width had no influence on the slab center temperature. According to the result, the slab reheating process was optimized for productivity enhancement and energy saving.

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