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通过对均热炉单侧上烧嘴的热工标定 ,发现烧嘴存在着火焰过长 ,空气和煤气混合不均匀 ,使得炉内温度场分布不够均匀 ,既增加燃料消耗又影响烧钢质量和产量。针对这一问题 ,本试验采取了改变旋流砖和旋流叶片角度的方法。试验表明 ,旋流砖旋转角度由 2 0°改为 30°后 ,炉内温度分布更加均匀。最高点与最低点的温度差由原来的 81 4 9℃减少至 52 2 4℃ ,减少了2 9 2 5℃。炉气和烟气中不完全燃烧产物减少
Through the thermal calibration of the burner on one side of the soaking furnace, it is found that there is a flame in the burner which is too long and the mixture of air and gas is not uniform, so that the distribution of the temperature field in the furnace is not uniform enough, which not only increases the fuel consumption but also affects the quality of the steel and Yield. In response to this problem, this experiment has taken to change the swirl brick and swirl blade angle method. The experimental results show that the temperature distribution in the furnace is more even after the rotation angle of swirling brick is changed from 20 ° to 30 °. The temperature difference between the highest point and the lowest point decreased from 81 4 9 ° C to 52 2 4 ° C and decreased by 2925 ° C. Incomplete combustion products in furnace gas and flue gas decrease