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›› 2013, Vol. 13 ›› Issue (3): 424-429.

• 过程与工艺 • Previous Articles     Next Articles

Experimental Study on Magnetic Separation and Reduction of Stainless Steel EAF Dust

LI Xin-lin LIU Xu-long LI Wen-cai CHEN Fa-tao LI Yi LI Qiu-ju HONG Xin   

  1. Shanghai Key Laboratory for Modern Metallurgy and Material Manufacture, Shanghai University Shanghai Key Laboratory for Modern Metallurgy and Material Manufacture, Shanghai University Shanghai Key Laboratory for Modern Metallurgy and Material Manufacture, Shanghai University Shanghai Key Laboratory for Modern Metallurgy and Material Manufacture, Shanghai University Shanghai Key Laboratory for Modern Metallurgy and Material Manufacture, Shanghai University Institute of material science and engineering, Shanghai University School of Materials Science and Engineering, Shanghai University
  • Received:2013-04-03 Revised:2013-04-18 Online:2013-06-20 Published:2013-06-20
  • Contact: LI Xin-lin

不锈钢粉尘磁选-还原实验研究

李心林 刘旭隆 李文才 陈法涛 李义 李秋菊 洪新   

  1. 上海大学上海市现代冶金与材料制备重点实验室 上海大学上海市现代冶金与材料制备重点实验室 上海大学上海市现代冶金与材料制备重点实验室 上海大学上海市现代冶金与材料制备重点实验室 上海大学上海市现代冶金与材料制备重点实验室 上海大学材料工程学院 上海大学材料学院
  • 通讯作者: 李心林

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Abstract: Based on the analysis of physicochemical properties of stainless steel EAF dust, the possibility of reducing the impurity (Ca, Mg, O) content in the dust by magnetic separation and reduction process was studied. The results show that the production rate of final magnetic material was 37.39%, total Fe grade up to 53.66%, and the content of main impurities, CaO and MgO, 11.61%, after the treatment of magnetic separation-reduction-magnetic separation. Adding a certain amount of Fe and Cu powder, it could be used as raw material of iron based powder metallurgy friction materials. In comprehensive consideration of production rate of magnetic material, TFe grade and decalcification effect, the suitable magnetic field intensity was in the range of 60~90 mT.

Key words: stainless steel dust, magnetic separation, reduction, decalcification, powder metallurgy, friction material

摘要： 在分析不锈钢电弧炉冶炼粉尘物化性质的基础上，探索了磁选-还原工艺降低不锈钢粉尘中Ca, Mg, O等杂质含量的可能性. 结果表明，采用磁选-还原-磁选工艺处理不锈钢粉尘，磁性物质产率为37.39%，TFe品位达53.66%，主要杂质CaO和MgO总量为11.61%，添加一定量Fe粉和Cu粉后可作为铁基粉末冶金摩擦材料的原料. 综合考虑磁性物质产率、TFe品位和脱钙效果，合适的磁场强度范围为60~90 mT.

关键词: 不锈钢粉尘, 磁选, 还原, 脱钙, 粉末冶金, 摩擦材料

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