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针对某钢厂板坯连铸的实际生产情况,考虑铸坯的遗传特性,建立板坯连铸的二维传热分析模型。根据铸坯的传热和运行特点,利用有限元软件ANSYS对连铸坯在结晶器和二次冷却区的凝固传热过程进行了模拟,分析了不同工艺条件对铸坯传热的影响。通过模型计算所得热流与冷却水量、进出口水温差等数据进行对比,对对流传热系数进行反复修正,使模型更加吻合实际生产。
Aiming at the actual production of slab continuous casting in a steel mill, the two-dimensional heat transfer analysis model of slab continuous casting was established considering the genetic characteristics of slab. According to the characteristics of heat transfer and operation of the billet, the finite element software ANSYS was used to simulate the solidification and heat transfer of the billet in the mold and the secondary cooling zone. The effects of different process conditions on the heat transfer of the billet were analyzed. By comparing the calculated data of heat flow, cooling water and inlet and outlet water temperature, the convective heat transfer coefficient was revised repeatedly to make the model more in line with the actual production.