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首页> 外文会议>Symposium on Characterization of Minerals, Metals, and Materials >Study on the Separation of Zinc and Iron in Electric Arc Furnace Baghouse Dusts and Its Kinetics
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Study on the Separation of Zinc and Iron in Electric Arc Furnace Baghouse Dusts and Its Kinetics

机译：电弧炉袋式除尘器粉尘中锌和铁的分离及其动力学研究

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摘要

In order to utilize the zinc-iron resources rich in the bag ash of a steel mill's electric furnace, the reaction rate and degree of zinc ferrite in the solid-solid reduction reaction are analyzed from the kinetic point of view, and the electric furnace bag is treated by the carbon-containing pellet reduction roasting method. Ash, the effect of zinc-iron separation during the reduction process, and the comprehensive utilization method of product greening were studied. The results show that in the process of reduction of zinc and iron in the bag ash of electric furnace, the weight loss rate and dezincification rate are positively correlated with the increase of reduction temperature and reduction time within a certain range. Under the condition of not considering the metallization rate, the reduction temperature of 1300 °C was determined, and the reduction rate of zinc in the electric bag ash was 98% when the reduction time was 15 min. The research on the kinetics of reductive dezincification shows that under certain process conditions, the ratio of decarburization with fixed carbon proportions is relatively fast. At this time, the dezincification rate can reach more than 90%, and the zinc removal rate is 98%.
机译：为了充分利用钢厂电炉袋灰中丰富的锌铁资源，从动力学角度分析了固-固还原反应中锌铁氧体的反应速率和程度，并采用含碳球团还原焙烧法对电炉袋进行了处理。研究了还原过程中的灰分、锌铁分离效果以及产品绿色化的综合利用方法。结果表明，在一定范围内，电炉袋灰中锌和铁的还原过程中，失重率和脱锌率与还原温度和还原时间的增加呈正相关。在不考虑金属化率的情况下，确定了1300°C的还原温度，还原时间为15min时，电袋灰中锌的还原率为98%。还原脱锌动力学研究表明，在一定工艺条件下，固定碳比的脱碳率相对较快。此时脱锌率可达90%以上，锌去除率为98%。

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