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对炼钢来说,入炉的铁水渣量大,使得冶炼周期长、消耗高。因此,在铁水进入转炉前,将铁水包内的高硫渣除去显得十分重要。实验中采用一种新型喷枪,置于铁水包后部,向铁水包喷吹氮气,使渣聚集,从而提高扒渣效率,减少铁水损失。并采用数值模拟的方法研究各项生产因素对吹渣效果和温度的影响。结果表明:枪浸入深度的增加会改善吹渣效果,吹气量的增大也有助于气体排渣。
For steelmaking, the amount of molten iron slag into the furnace is large, which results in a long smelting cycle and high consumption. Therefore, it is very important to remove the high-sulfur slag in the ladle before the hot metal enters the converter. In the experiment, a new type of spray gun was used, which was placed in the back of the ladle. Nitrogen was injected into the ladle to accumulate the slag so as to improve the efficiency of slag removal and reduce the loss of hot metal. And numerical simulation method to study the production factors on the blowing effect and temperature. The results show that the increase of gun immersion depth will improve the effect of blowing slag, and the increase of air blow volume also contributes to slag discharge.