Pilot Experiences of Swerea MEFOS on Slag Recycling
Slag is a byproduct generated during metal production and huge amount of various slags are produced yearly in the world. The annual amount of generated steelmaking slags alone is more than 100 million tons. Fully utilization of this huge amount of byproduct is limited by its leaching and volume stability properties. In the recent years Swerea MEFOS have been involved a large number of projects aiming for increased slag utilization. These projects included slag stabilization to improve the physical and leaching properties, slag reduction for metal recovery, dry slag granulation for heat recovery and for reduced leaching of heavy metals, water granulation for production of raw materials for cement industry and transforming of hazardous wastes into useful slag formers products. The major results from the following projects will be highlighted and described in this paper: - IPBM, In-Plant Byproduct Melting process - ViLD - Vanadium recovery from LD-slag, an ongoing eight-years slag reduction project in Sweden and Finland - Converting of pickling sludge into a valuable slag former for the AOD-process - Dry and wet granulation of metallurgical slags The pilot equipment used for these development works include a 3 MW DC-furnace, a 5 MVA AC-furnace, a 5-tons converter, and various granulation facilities. This paper will also show some tests performed in industrial scale. The extensive pilot experiences of Swerea MEFOS have shown that there is a wide range of options for economic and ecological recovery of metals, minerals and energy from hot metallurgical slag.
Slag treatment reduction metal and heat recovery granulation slag product
Guozhu YE Mikael LINDVALL
Swerea MEFOS AB, Box 812, SE-971 25 Lule(a) Sweden
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-13
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）