The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works
The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works
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DOI：
10.4028/www.scientific.net/msf.620-622.603
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发表时间：
2009-04
期刊：
影响因子：
--
通讯作者：
Xiao Ming Li;Junxue Zhao;Ya-ru Cui;Jun Yang
中科院分区：
文献类型：
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作者：
Xiao Ming Li;Junxue Zhao;Ya-ru Cui;Jun Yang
不锈钢生产过程中产生的电弧炉烟尘和酸洗污泥中含有大量的铁、镍、铬、锰等有价金属。它们的成分与红土镍矿相似，有时甚至在镍、铬含量上优于红土镍矿。但遗憾的是，这些宝贵的资源被随意堆放或填埋处理。将典型的电弧炉烟尘、酸洗污泥与还原剂焦粉按适当比例混合后，在中频感应炉中进行冶炼。冶炼过程中加入石灰粉和萤石助熔，加入硅铁粉加强还原。产品镍铬铁可作为生产不锈钢或铸铁的原料。该技术具有良好的社会效益和经济效益。
The EAF Dusts and pickling sludges generated in the stainless steel production contain a lot of valuable metals such as iron, nickel, chromium and manganese. Their compositions are similar to those of laterite nickel ore, and sometimes even better than that at the contents of nickel and chromium. But it is regret that these valuable resources were random piled up or landed fill disposal. In this paper, the typical EAF dusts and pickling sludges and reductant coke powder were mixed in appropriate ratio, and then smelted in a medium frequency induction furnace. In the smelting process, the lime powder and fluorite was added to fluxing, and the ferrosilicon powder was added to strengthen the reduction. The product nickel-chromium-iron can be used as the raw material for stainless steel or cast iron production. The technology has good social and economic benefits.