摘要
利用金川公司的废渣和石英砂为主要原料,以焦碳和木炭作为还原剂,利用自制的小型直流电弧炉和混合加料法冶炼硅铁合金,并利用XRD和光学显微镜对合金进行了分析。实验表明,当石英砂质量分数为20%,炉料的配碳量为1.9∶1时,硅铁的回收率最高,产物中得到了Fe5Si3和Fe3Si。利用直流电弧炉冶炼硅铁合金具有独特的优势,在冶炼过程中解决了炉底上涨的技术难题。本研究不但可以解决废渣利用方面的问题,而且能合理的利用废渣起到环保作用,还能产生更好的经济效益。
Utilizng Jinchuang Corporation＇s waste slag and quartz sand as main raw materials and charred coal and charcoal as reducing agent, ferro-silicon alloy was reclaimed by mixed charging method in self-made DO arc furnace. The alloy was analysed by means of XRD and optical microscope. The results show that when the mass ratio of quartz sand is 20% and the ratio of material and reducing agent is 1.9, the recovery rate of SiFe is the highest, and Fe5Si3 and Fe3Si can be obtained. DO arc furnace has a unique advantage in smelting FeSi alloy and can tackle bottom rise in smelting process. The technology can not only utilize waste slag but also protect environment.
出处
《铸造技术》
CAS
北大核心
2008年第12期1689-1691,共3页
Foundry Technology
基金
甘肃省经贸委资助项目:甘肃省工业废渣利用的研究
关键词
废渣
硅铁
直流电弧炉
回收率
Waste slag
Ferro-silicon alloy
DC arc furnace
Recovery rate
