本工作模拟首钢转炉的初期和末期渣,采用旋转试棒法测定了镁白云石材料在一般转炉渣中的蚀损速度。实验结果表明,虽然初期渣实验温度(1500℃)比末期渣实验温度(1600°)低100℃,初期渣对镁白云石材料的侵蚀速度还是远远大于末期渣的侵蚀速度;初期渣对镁白云石材料的侵蚀速度随着炉渣碱度的提高而迅速下降;末期渣碱度的变化对侵蚀速度无明 This work simulates the initial and final slag of Shougang converter, and uses the rotating test rod method to determine the loss rate of magnesium dolomite in common converter slag. The experimental results show that although the initial slag test temperature (1500 ℃) lower than the final slag test temperature (1600 °) lower 100 ℃, the early slag on the magnesium dolomite erosion rate is much higher than the rate of the last slag erosion; initial slag magnesium The erosion rate of dolomite material decreases rapidly with the increase of basicity of slag; the change of slag basicity in late stage has no effect on the erosion rate