低碳高钒铁水复吹提钒的动力学模拟
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摘要
构建了耦合反应模型,此模型包括传氧模型和渣金界面反应模型,可模拟低碳高钒铁水复吹提钒的动力学特征。由模拟结果可知,在顶吹强度为2.0 m~3/(min·t)时,最佳冷料加入量为50 kg/t,此时吹氧9 min后,熔池温度为1 410℃,铁液钒含量由1.2%至0.04%。
A coupled dynamic model is established to simulate the dynamic characteristic of vanadium extraction process in combined blown converter.The model consists of oxygen transfer model and slag-metal interfacial reaction model.The model canbe used to simulate the kinetic characteristics of hot metal containing low carbon and high vanadium.The simulation results show that the optimum addition of cold material is 50 kg/t at top blowing intensity of 2 m~3/(min·t).In this case,temperature of molten is 1 410 ℃ after 9 minutes' smelting,and the content of vanadium in the molten iron is reduced from 1.2% to 0.04%.
A coupled dynamic model is established to simulate the dynamic characteristic of vanadium extraction process in combined blown converter.The model consists of oxygen transfer model and slag-metal interfacial reaction model.The model canbe used to simulate the kinetic characteristics of hot metal containing low carbon and high vanadium.The simulation results show that the optimum addition of cold material is 50 kg/t at top blowing intensity of 2 m~3/(min·t).In this case,temperature of molten is 1 410 ℃ after 9 minutes' smelting,and the content of vanadium in the molten iron is reduced from 1.2% to 0.04%.
引文
[1] 黄希祜.钢铁冶金原理[M].北京:冶金工业出版社,2002.(Huang Xihu.Principles of iron and steel metallurgy[M].Beijing:Metallurgical Industry Press,2002.)
[2] 黄道鑫.提钒炼钢[M].北京:冶金工业出版社,2000:16-17.(Huang Daoxin.Vanadium recovery steelmaking[M].Beijing:Metallurgical Industry Press,2000:16-17.)
[3] Robertson D G C,Deo B,Hguchi O.Multi-component mixed-transport-control theory for kinetics of coupled slag/metal and slag/metal/gas reactions:Application to desulphurization of molten iron[J].Ironmaking and Steelmaking,1984,11(1):41-55.
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[9] Sarkar R,Gupta P,Basu S,et al.Dynamic modeling of LD converter steelmaking:Reaction modeling using Gibbs’ free energy minimization[J].Metallurgical and Materials Transactions B,2015,46(2):961-976.
[10] Sweatman W L,Wake Graeme C,Fullard Luke,et al.Recovering vanadium during the production of steel from iron sand[J].The Journal of the Australian Mathematical Society,2011,53:1-21.
[11] Zhen Xiaopeng.Thermodynamic and macro-kinetic studies on oxidations of carbon and vanadium during vanadium extration by converter[D].Chongqing :Chongqing University,2012.(甄小鹏.转炉提钒过程中碳、钒氧化的热力学和宏观动力学研究[D].重庆:重庆大学,2012.)
[12] Zhang Qi.Research on dynamic behaviors during vanadium-extraction process[D].Shengyang:Northeastern University,2014.(张琪.转炉铁水提钒的动力学研究[D].沈阳:东北大学,2014.)
[13] Ma Deng,Wu Wei,Dai Shifan,et al.Activity-calculating model of vanadium slag system and its application[J].Journal of Materials and Metallurgy,2017,16(4):239-243.(马登,吴巍,戴诗凡,等.含钒渣系活度计算模型及应用[J].材料与冶金学报,2017,16(4):239-243.)
[2] 黄道鑫.提钒炼钢[M].北京:冶金工业出版社,2000:16-17.(Huang Daoxin.Vanadium recovery steelmaking[M].Beijing:Metallurgical Industry Press,2000:16-17.)
[3] Robertson D G C,Deo B,Hguchi O.Multi-component mixed-transport-control theory for kinetics of coupled slag/metal and slag/metal/gas reactions:Application to desulphurization of molten iron[J].Ironmaking and Steelmaking,1984,11(1):41-55.
[4] Ohguchi S,Robertson D G C,Deo B.Simultaneous dephosphorization and desulphurization of molten pig iron[J].Ironmaking and Steelmaking,1984,11(4):202-213.
[5] Ohguchi S,Robertson D G C.A kinetic model for refining using submerged injection[J].Ironmaking and Steelmaking,1984,11:262-273.
[6] Lin Dong,Zhao Chenglin,Zhang Guiyu,et al.Mechanism model steelmaking process in combined blowing converter[J].China Metallurgy,2006,16(5):31-35.(林东,赵成林,张贵玉,等.复吹转炉炼钢过程机理模型[J].中国冶金,2006,16(5):31-35.)
[7] Zhao Chenglin,Ma Song,Lin Dong,et al.Mathematical simulation of steelmaking process of BOF with combined blowing:kinetic model[J].Journal of Materials and Metallurgy,2004,3(2):99-103.(赵成林,马嵩,林东,等.复吹转炉炼钢过程数学模拟:动力学模型[J].材料与冶金学报,2004,3(2):99-103.)
[8] Ishikawa M.Analysis of hot metal desiliconization behavior in converter experiments by coupled reaction model[J].ISIJ International,2004,44(2):316-325.
[9] Sarkar R,Gupta P,Basu S,et al.Dynamic modeling of LD converter steelmaking:Reaction modeling using Gibbs’ free energy minimization[J].Metallurgical and Materials Transactions B,2015,46(2):961-976.
[10] Sweatman W L,Wake Graeme C,Fullard Luke,et al.Recovering vanadium during the production of steel from iron sand[J].The Journal of the Australian Mathematical Society,2011,53:1-21.
[11] Zhen Xiaopeng.Thermodynamic and macro-kinetic studies on oxidations of carbon and vanadium during vanadium extration by converter[D].Chongqing :Chongqing University,2012.(甄小鹏.转炉提钒过程中碳、钒氧化的热力学和宏观动力学研究[D].重庆:重庆大学,2012.)
[12] Zhang Qi.Research on dynamic behaviors during vanadium-extraction process[D].Shengyang:Northeastern University,2014.(张琪.转炉铁水提钒的动力学研究[D].沈阳:东北大学,2014.)
[13] Ma Deng,Wu Wei,Dai Shifan,et al.Activity-calculating model of vanadium slag system and its application[J].Journal of Materials and Metallurgy,2017,16(4):239-243.(马登,吴巍,戴诗凡,等.含钒渣系活度计算模型及应用[J].材料与冶金学报,2017,16(4):239-243.)