钢铁厂含锌粉尘的低温磁化焙烧试验研究  

Experimental Research on Low-temperature Magnetic Roasting of Zinc-bearing Dust in Iron and Steel Plant

作　　者：尹慧超[1,2] 张建良[2] 陈永星[2] 王传琳[2] 杨广庆[2] 

机构地区：[1]中冶赛迪上海工程技术有限公司,上海200940 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《矿产综合利用》2011年第3期40-43,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家科技支撑计划项目资助(2006BAE03A01)

摘　　要：在实验室对高炉含锌粉尘进行了低温磁化焙烧-磁选试验研究。结果表明:采用低温磁化焙烧-磁选技术能够有效的从粉尘中提取品位较高的铁精矿,而锌主要被富集到尾矿中。焙烧温度以900℃左右为宜,焙烧时间以30m in左右为宜。焙烧产物采用水冷的方式冷却,可以有效防止产物的氧化。热力学研究结果表明,为了提高反应速度,可以适当提高焙烧温度。Experimental research on low temperature magnetic roasting—magnetic separation for Zinc-bearing dust in blast furnace was carried out in this paper.The result shows iron concentrate with high-grade can be effectively extracted from the dust adopting the technology of low temperature magnetic roasting—magnetic separation when the roasting temperature is about 900℃ and the roasting time is 30min.The roasted products should be cooled by means of water-cooling because it can effectively prevent oxidation.Thermodynamic study shows that the roasting temperature can be properly improved in order to enhance the reaction speed.

关 键 词：含锌粉尘 磁化焙烧 磁选 

分 类 号：TD989[矿业工程—选矿]