长短腿RH精炼炉替代摇包冶炼铁合金新方法
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摘要
优化摇包生产工艺是冶炼中低碳锰铁与中低碳铬铁的研究重点。借鉴炼钢用RH精炼炉的基本原理,提出采用长短腿RH精炼炉替代摇包生产铁合金的新方法。介绍了炼钢用RH精炼炉的基本工艺思想,并对长短腿RH精炼炉用于实现渣金两个液相混合的原理、方法与可行性进行了分析。分析表明,长短腿RH精炼炉可以完成渣金两相的高效混合与快速分离,同时还可以借鉴RH精炼炉的精炼功能完成洁净铁合金生产;解决长腿耐火材料的使用寿命问题是实现长短腿RH精炼炉实际生产的关键问题。
Optimization of the shaking ladle process is a key point of smelting medium and low carbon ferromanganese and ferrochrome.A new method for the production of ferroalloy with the long-and-short leg RH refining furnace is proposed based on the basic principle of RH refining furnace for steelmaking.The basic principle of the RH refining furnace for steelmaking is introduced and the method and feasibility of the long-and-short leg RH refining furnace for mixing slag and metal liquid phase are analyzed.Analysis shows that the long-and-short leg RH refining furnace can not only be used to complete the high efficient mixture and rapid separation,but also be used for the production of clean and pure ferroalloy due to the refining function of the RH refining furnace.Solving the problem of working life of the refractory material is the key problem in the practical application of the long-and-short leg RH refining furnace.
Optimization of the shaking ladle process is a key point of smelting medium and low carbon ferromanganese and ferrochrome.A new method for the production of ferroalloy with the long-and-short leg RH refining furnace is proposed based on the basic principle of RH refining furnace for steelmaking.The basic principle of the RH refining furnace for steelmaking is introduced and the method and feasibility of the long-and-short leg RH refining furnace for mixing slag and metal liquid phase are analyzed.Analysis shows that the long-and-short leg RH refining furnace can not only be used to complete the high efficient mixture and rapid separation,but also be used for the production of clean and pure ferroalloy due to the refining function of the RH refining furnace.Solving the problem of working life of the refractory material is the key problem in the practical application of the long-and-short leg RH refining furnace.
引文
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[3]倪善强.摇包流体运动特征及两相流混合与分相行为的冷态模拟研究[D].北京:北京科技大学,2014.
[4]章俊,王振,储少军,等.大型摇包溅渣护炉技术的应用分析[C]//第23届全国铁合金学术研讨会论文集.石嘴山:中国金属学会铁合金分会,2014:280.
[5]王殿禄,洪宝仪.钢液真空处理[M].北京:冶金工业出版社,1979.
[6]徐匡迪,王新华.中国炼钢工业面临的挑战与技术进步[R].北京:第六届国际炼钢科技大会,2015.
[7]郁能文.多功能RH精炼过程的数学和物理模拟[D].上海:上海大学,2001.
[8]李士琦.冶金系统工程[M].北京:冶金工业出版社,1991.
[9]Pande M M,Guo M,Guo X,et al.Ferroalloy quality and steel cleanliness[J].Ironmaking and Steelmaking,2010,37(7):502.
[10]Sjoqvist T.Influence of ferrochromium and ferromanganese additions on inclusion characteristics in liquid steel[D].Stockholm:Royal Institute of Technology,2001.
[11]Safarian J,Kolbeinsen L.Purity requirements for Mn alloys for producing high manganese TRIP and TWIP steels[C]//Proceedings of the Thirteenth International Ferroalloys Congress.Almaty:International Committee of Ferroalloys,2013:175.
[12]曾世林.锰系铁合金炉外精炼工艺及理论研究[D].北京:北京科技大学,2009.
[13]储少军,李忠思,陈佩仙,等.镍铁水为主原料的300系列不锈钢初炼工艺技术初探[J].铁合金,2012(1):21.
[14]张士宪,赵晓萍.炉外精炼工[M].北京:化学工业出版社,2012.
[15]尾上慎一.摇包法生产中碳锰铁[C]//第三次国际铁合金会议文集.东京:日本铁合金协会,1984:155.