对转底炉处理含锌粉尘进行了实验室研究,通过设计正交试验考察了焙烧温度、焙烧时间及配煤量对含锌粉尘脱锌率、金属化率、磁选精矿产率以及铁回收率的影响。试验结果表明最佳工艺参数为:焙烧温度1 350℃,焙烧时间25 min,配煤量6%。在此条件下的脱锌率和金属化率分别高达99.29%和99.68%,精矿产率为46.57%,铁回收率为95.46%。对经过最优方案焙烧并磁选处理后的精矿进行XRD分析,发现其主要物相为金属铁,并且没有含锌物相的衍射峰出现,可见此方案对含锌粉尘的处理效果最佳。 Orthogonal experiments were carried out to study the zinc-containing dusts in rotary hearth furnace. The dezincification rate, metallization rate, magnetic separation concentrate yield and iron recovery Rate of impact. The experimental results show that the optimum technological parameters are as follows: roasting temperature is 1 350 ℃, roasting time is 25 min, coal blending is 6%. Under these conditions, the dezincification rate and metallization rate were as high as 99.29% and 99.68% respectively, the concentrate yield was 46.57% and the iron recovery rate was 95.46%. XRD analysis shows that the main phase is metallic iron and there is no diffraction peak of zinc-containing phase, which shows that this scheme has the best effect on the treatment of zinc-containing dust .