【摘要】 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.更多还原

【Abstract】 In order to recycle Zn-bearing dusts in Baosteel, hot metal desiliconization with the dust was investigated in laboratory. The factors which affect desiliconization and Zn evaporation were discussed. Theresults show that the mixture of EAF dust and BOF dust containing Zn for hot metal desiliconization at 1500℃is better than sinter dust. The Zn evaporation rate in the slag can reach to 99 % and the height of foaming slag in desiliconization is lower. It benefits desiliconization by increasing temperature, enhancing stirring intensity or increasing the initial content of [Si].更多还原