高炉炉底侵蚀线的计算

针对梅山３＾＃高炉炉底条件，用有限元素法开发了只依靠热遇测得的湿度作为边界条件和修正温度，对炉底侵蚀情况进行在线监测的二维数学模型，解决了采用炉底及炉侧的对流边界条件以实时检测的问题。模型中采用网格变形拟合的方法处理边界移动的问题，算法简单便于在线运行。通过梅山３＾＃高炉的实际应用及对不同侵蚀状态的计算，结果是令人满意的。

Calculation on the erosion boundary of the blast furnace bottom

An on line monitoring mathematical model for Meishan No.3 BF with FEM method is developed. This model only uses the temperatures measured as boundary conditions and the verifying temperature,with no consideration of convective condition of side wall and bottom of BF. The method with the net shape changing to fit the corrosion curve is taken to solve the inner boundary moving problem. Through the on line application of this model on Meishan No.3 BF and calculation with hypothetical abnormal data, the results are satisfactory.