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Design innovation and production practice for steel-making process in CISC

HE Yu-ming,HU Bing(Chongqing Iron and Steel Co.,Ltd.,Chongqing 401258,China)  
New one-tank-system was used to connect the iron-making and steel-making in steel-making plant of Chongqing Iron and Steel Co.,Ltd.and the direct concatenation of continuous casting and hot rolling was carried out by hot charging process.The innovation design of without steam and without the railway network have been adopted.The high desulfurization rate can be achieved for the hot metal and thermal loss reduced by the short transport distance between blast furnace and KR desulfurization station.It is important of refining equipments,such as RH with dry vacuum pump,for producing clean steel.The slab stack yard and the produce time for the plate has been reduced through hot charging process.Since commissioning for more than two years,the logistics,energy flow and information flow are smooth and the variety and quality of steel plate are satisfied with customer requirements by continuous optimization and improvement for the process.
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