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为了提高高炉炉缸内衬侵蚀情况的计算精度、缩短计算时间,运用准三维法研究高炉炉缸内衬轴截面的侵蚀情况。该方法利用周向传热量修正项代替周向上的传热,并给出了周向传热量修正项的处理方法。利用ANSYS软件建立了炉壁轴截面的侵蚀模型,采用逐步逼近法修改侵蚀边界,进行稳态求解,并详细阐述了准三维法的计算过程。通过实例,分析了二维和准三维侵蚀方法的差异。仿真结果表明,该方法是正确的、可行的,准三维法较二维法计算精度高,计算时间短,近似于三维侵蚀分析。
In order to improve the calculation accuracy of blast furnace hearth lining erosion and shorten the calculation time, the quasi-three-dimensional method was used to study the erosion of blast furnace hearth liner shaft cross-section. In this method, the heat transfer in the circumferential direction is used instead of the heat transfer in the circumferential direction, and the correction method for heat transfer in the circumferential direction is given. The corrosion model of furnace shaft section was established by using ANSYS software. The erosion boundary was modified by the method of stepwise approximation, and the steady state was solved. The calculation process of quasi-three-dimensional method was elaborated. Through examples, the differences between two-dimensional and quasi-three-dimensional erosion methods are analyzed. The simulation results show that this method is correct and feasible. The accuracy of quasi-three-dimensional method is higher than that of two-dimensional method, and the calculation time is short, which is similar to that of three-dimensional erosion analysis.