COREX(○R) + MIDREX An ideal concept for economic and environmental friendly steel production
- 作者：Christian B(o)hmGerhard FritschWolfgang SterrerJohann Wurm
- 会议时间：2013-06-01
- 关键词：COREX ; MIDREX ; SIMETAL EAF ; export gas utilization ; hot metal ; DRI
- 作者单位：Siemens VAI Metals Technologies GmbH,Linz,Austria
- 母体文献：第五届宝钢学术年会论文集
- 会议名称：第五届宝钢学术年会
- 会议地点：上海
- 主办单位：中国金属学会
- 语种：chi
摘要
The Corex process is beside the Finex technology the only economic and ecologic industrially realized alternative to the blast furnace route for the production of hot metal.Based on the nature of the Corex process using pure oxygen for the smelting process a high value export gas with a calorific value is produced which can be used for various purposes.Existing Corex plants at Saldanha,JSW,Baosteel and Essar have already implemented different applications for export gas utilization to fully utilize the benefits of the Corex process for economic and efficient hot metal and steel production.Current trends in iron and steelmaking clearly show an increasing demand for utilizing the Corex export gas for the production of DRI.Integrated plant concepts based on a Corex/Midrex DR plant combination offer solutions for future challenges of the iron - and steelmaking industry,which include : - economical hot metal and DRI production based on coal - raw material costs,raw material availability - need for integrated energy solutions - environmental friendly high grade steel production A further aspect of the combination is the possibility to charge the hot metal from Corex and the DRI in hot condition from the Midrex plant to a SIMETAL EAF for highest efficient steel production.The new SIMETAL FAST DRI EAF especially developed for DRI charge to an EAF the productivity is maximized due to minimized power - off times.Many references for the input of hot metal and hot/cold DRI reflecting the market demand for increased input of scrap substitutes are available.