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为进一步研究矿热炉炉衬中温度场的分布情况,采用ANSYS仿真软件对真实简化的炉衬模型进行仿真分析。通过改变炉内温度和对流换热系数的数值,得到炉壁处的温度数据,与实测数据进行对比,验证模拟数据的合理性。结果表明,炉衬中不同耐火材料的温度分布存在差异;炉壁温度会随着炉内温度的增大而逐渐升高,随着对流换热系数的增大而降低;炉壁温度随对流换热系数的变化曲线斜率从0.13降到0.06,当曲线斜率逼近于0时,对流换热系数不再影响炉壁温度的变化,得到最优化的对流换热系数;模拟数据占实测数据的百分比在3%~8%范围内时,模拟数据能合理反映炉壁温度值。这为炉体保温结构设计和耐火材料的选用提供依据。
In order to further study the distribution of temperature field in the lining of the submerged arc furnace, ANSYS simulation software is used to simulate the real simplified lining model. By changing the temperature in the furnace and the convective heat transfer coefficient, the temperature data at the furnace wall were obtained and compared with the measured data to verify the rationality of the simulation data. The results show that the temperature distribution of different refractories in the lining is different. The temperature of the furnace wall increases with the increase of the furnace temperature and decreases with the increase of the convection heat transfer coefficient. The temperature of the furnace wall changes with convection When the slope of the curve is close to 0, the convective heat transfer coefficient no longer affects the change of furnace wall temperature, and the optimal convective heat transfer coefficient is obtained. The percentage of simulated data to the measured data is between 3 % ~ 8% range, the simulation data can reasonably reflect the furnace wall temperature. This provides the basis for the design of furnace insulation structure and the selection of refractory materials.