Due to the difficulty of experimentally observing the raceway area in blast furnaces,this study developed a two-dimensional Eulerian-Lagrangian multiphase flow model to numerically simu-late the formation of the blast furnace raceway area,focusing on the specific effects of blast air speed and angle on the dimensions and shape of the raceway area.The results reveal that increasing the blast air speed from 150 m/s to 250 m/s significantly enlarges the gas phase volume fraction and dimensions of the raceway area,with its depth and height expanding from 0.75 m and 1.24 m to 1.4 m and 2.36 m,respectively.Furthermore,adjusting the blast air angle plays a crucial role in the horizontal exten-sion and depth of the raceway area,particularly when the blast air angle is adjusted from 0° to-30°,the height of the raceway area remains around 2 m,and its depth decreases from 1.52 m to 1.13 m,highlighting the positive impact of smaller blast air angles on increasing the depth of the raceway area.These findings provide a scientific basis for optimizing blast furnace blowing parameters,offering signif-icant guidance for enhancing the operational efficiency and production capacity of blast furnaces.
维普
万方数据
