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为在钢厂内循环利用含锌粉尘,在实验室进行了含锌粉尘用于铁水预脱硅的研究,分析了铁水脱硅及渣中Zn挥发的影响因素.结果表明:1500℃下将转炉和电炉含锌粉尘按1:1混合对铁水进行预脱硅,脱硅效果比烧结粉尘更好,脱硅产生的泡沫渣高度更低,脱硅渣中Zn的挥发率可达99％;提高铁水温度、增加铁水搅拌强度都有利于脱硅;随铁水初始Si含量升高,粉尘脱硅率增加.
In order to recycle zinc-bearing dust in steel mills, a zinc-containing dust was used in the laboratory to study the pre-desiliconization of molten iron, and the influencing factors of desiliconization of molten iron and Zn volatilization in slag were analyzed.The results showed that the converter And the electric furnace zinc dust by 1: 1 pre-desiliconization of molten iron, desiliconization effect is better than the sintering dust, desiliconization generated foam slag height is lower, desiliconization slag Zn volatilization rate of up to 99%; improve The hot metal temperature and the hot metal mixing strength are favorable for desilication. With the initial Si content of hot metal increased, the desiliconization rate of dust increased.