Experimental Research on Fine Reduction of EAF Dust at Xinyesteel

Special Steel ›› 2011, Vol. 32 ›› Issue (5): 18-21.

Experimental Research on Fine Reduction of EAF Dust at Xinyesteel

Wang Yujiao¹ , Fan Xinyou² , Li Shiqi¹ , Sun Lingzhi¹ , Gao Jintao¹ , Jin Xiaohui¹ , Liu Runzao¹ , Qian Gang³ , Chen Changxi³

1. School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ；
2. Xinxing Ductile Iron Pipes Co Ltd, Wu'an 056300；
3. Hubei Xinyesteel Co Ltd, Huangshi 435001

Received:2011-05-03 Online:2011-10-01 Published:2022-11-01

新冶钢电弧炉粉尘精细还原实验研究

汪玉娇¹, 范新有², 李士琦¹, 孙灵芝¹, 高金涛¹, 金晓辉¹, 刘润藻¹, 钱刚³, 陈长西³

1. 北京科技大学冶金与生态工程学院，北京 100083；
2. 新兴铸管股份有限公司，武安 056300；
3. 湖北新冶钢有限公司，黄石 435001；

作者简介:汪玉娇(1987-)，女，研究生，2009年安徽工业大学毕业，钢厂粉尘特性及再资源化利用研究。

Abstract

Abstract: A study on basic characteristics of baked EAF dust including chemical composition, X-ray diffraction detection ,and particle-size distribution has been carried out. Based on thermodynamic principles of iron oxide and zinc oxide redaction , the concept of fine reduction of EAF dust is put forward. The effect of temperature (910 ~ 1 010 °C ) and reduction time (2 ~4 h) on ratio of metallization and ratio of de-zinc to EAF dust, and the variance analysis and correlation analysis on test results have been carried out by using Statistical Product and Service Solutions (SPSS) software. Results show that TFe content and Zn content in EAF dust are respectively 47. 26% and 8. 32% ； at 910 ~ 1 010 °C the iron oxide and zinc oxide transforming to MFe and zinc is realized with using pure to fine reduce EAF dust, and the ratio of metallization and ratio of de-zinc are respectively 95% and 98% ； and the phenomenon of sintering EAF dust fine reduction product has not occurred.

Key words: EAF Dust, Fine Reduction, Ratio of Metallization, Ratio of De-zinc

摘要： 对烘干后的电弧炉干粉尘进行基础特性研究,包括化学成分、XRD(X-ray diffraction)检测、粒度分布。根据铁氧化物、锌氧化物的还原热力学原理,提出了"电弧炉粉尘精细还原"的概念。探讨温度(910～1 010℃)和还原时间(2～4h)对电弧炉粉尘金属化率和脱锌率的影响,并利用SPSS(Statistical Product and Service Solutions)软件对实验结果进行方差分析和相关性分析结果表明,电弧炉粉尘TFe含量为47.26%,Zn含量为8.32%;在910～1010℃,使用纯H2对电弧炉粉尘进行精细还原,能实现铁氧化物和锌氧化物分别向MFe和Zn的转变,金属化率和脱锌率分别达到95%、98%左右;同时电弧炉粉尘精细还原的产物未有烧结现象发生。

关键词: 电弧炉粉尘, 精细还原, 金属化率, 脱锌率

Wang Yujiao , Fan Xinyou , Li Shiqi , Sun Lingzhi , Gao Jintao , Jin Xiaohui , Liu Runzao , Qian Gang , Chen Changxi. Experimental Research on Fine Reduction of EAF Dust at Xinyesteel[J]. Special Steel, 2011, 32(5): 18-21.

汪玉娇, 范新有, 李士琦, 孙灵芝, 高金涛, 金晓辉, 刘润藻, 钱刚, 陈长西. 新冶钢电弧炉粉尘精细还原实验研究[J]. 特殊钢, 2011, 32(5): 18-21.