通过建立高炉送风系统模型,模拟了风口尺寸和风口压力变化对风口速度、流量和鼓风动能的影响,并结合理论分析对风口尺寸调节方法进行了探讨。研究结果表明:在高炉操作过程中,只有当多个风口的面积减小时,所有风口的鼓风动能才都会增大;在实际操作中,因为这些风口的风量明显减少,所以减小少数几个风口的操作能抑止边缘气流的发生。 Through the establishment of the blast furnace air supply system model, the influence of the size of the tuyere and the pressure of the tuyere on the tuyere velocity, the flow rate and the blast kinetic energy was simulated, and the method of tuyere size adjustment was discussed with theoretical analysis. The results show that during blast furnace operation, the blast kinetic energy of all tuyeres will increase only when the area of ​​multiple tuyeres is reduced. In actual operation, because the air volume of these tuyeres is obviously reduced, The operation of the tuyere can restrain the occurrence of edge airflow.