。228 北京科技大学学报 第31卷 率的贡献率基本没有变化，说明最低渣一铁界面以 2006:26 下区域的状态对总渣滞留率的影响很小. [5 Xiong W,BiX G.Zhou G F.Simulation study on gas pressure drop characteristics in the low er zone of blast furnace.J Chem (3)增加渣一铁界面以上区域中死焦堆的外围 Eng Chin Univ,2007.21(2):232 焦炭的透液性是减少渣滞留量的重要手段 (熊玮，毕学工，周国凡.高炉下部气相压降特性的模拟研究 (4)导致炉渣滞留炉缸的根本原因是铁口附近 高校化学工程学报，2007.21(2)：232) 渣铁流速远大于死料柱中的流速，形成了向铁口倾 6 Zhao M G.Study on Physical and Numerical Simulation of 斜的气一渣界面，而当铁口来风时需停止出铁此时 Flow and Heat Transfer in Blast Furnace Hearth and Bottom 死焦堆中高于铁口平面的渣无法排出而滞留在炉 Dissertation].Beijing:University of Science and Technology Beijing 2006:54 内，可见能减小这种速度差异的手段均能有效减少 (赵民革.高炉炉缸炉底流动及传热物理与数值模拟研究学 渣滞留量.在高炉操作实践中可以通过提高焦炭的 位论文.北京：北京科技大学，2006：54) 高温反应强度、中心加焦更新死料柱等手段保证整 [7 Zhu Y X.Calculation method of blast fumace salamander depth. 个料柱有良好的透液性，以及在不影响生产的前提 Iron making 2005.24(2):21 下采用小的出铁口均有利于减少渣滞流量. (朱远星.关于高炉死铁层深度的计算方法.炼铁2005,24 (2):21) [8 Zhu Q T.Cheng SS,Zhao M G.Caleulation of proper salaman- 参 考文献 der depth in hearth /Annl Meeting of Iron and Steel in2007. [1]Desai B.Lenka S.Quantificat ion of blast furnace hearth drainage Chengdu.2007:3 parameters through physical modal study.Iron making Steelmak (朱清天，程树森，赵明革。炉缸死铁层合理深度的计算∥ ing,2007,34(3):269 2007年钢铁年会论文集成都，2007：3) [2]Nishoka K,Maeda T.Shimizu M.Effect of various in fu mace [9 Zhang L J.Nu merical Simulation for Transient Fluid Fbw conditions on bast furnace hearth drainage.ISU Int.2005.45 and Residual Slag Volume in Blast Furnace Hearth Disserta (10):1196 tion.Beijing:University of Science and Technology Beijing, [3]Zhao M G.Sun T L Cheng S S.Numerical simulation of fluid 2006.41 flow in blast furnace hearth.J fron Steel Res Int,2005,12(6): (张利君.炉缸渣铁水瞬态流场及渣滞留量的数值模拟学位 5 论刘.北京：北京科技大学，2006：41) [4]Zhao M G Zhang L J.Cheng SS.Numerical simulat ion and [10 Kaw ai H.Takahashi H.Solid behavior in shaft and deadman in parametricstudy of residual sag voume in bast fumace hearth a cold model of blast furrace with floating sinking motion of during hearth drainage //The 4th International Congres on the hearth packed bed studied by experimental and numerical DEM Science and Technology of Iron-making Proced ings.Osaka analy ses.S01nt,200444:1140率的贡献率基本没有变化 , 说明最低渣-铁界面以 下区域的状态对总渣滞留率的影响很小 . (3)增加渣-铁界面以上区域中死焦堆的外围 焦炭的透液性是减少渣滞留量的重要手段. (4)导致炉渣滞留炉缸的根本原因是铁口附近 渣铁流速远大于死料柱中的流速 ,形成了向铁口倾 斜的气-渣界面,而当铁口来风时需停止出铁, 此时 死焦堆中高于铁口平面的渣无法排出而滞留在炉 内,可见能减小这种速度差异的手段均能有效减少 渣滞留量 .在高炉操作实践中可以通过提高焦炭的 高温反应强度、中心加焦更新死料柱等手段保证整 个料柱有良好的透液性, 以及在不影响生产的前提 下采用小的出铁口均有利于减少渣滞流量. 参 考 文 献 [ 1] Desai B , Lenka S.Quantification of blast furnace hearth drainage paramet ers through physical modal study .Iron making S teelmak￾ing , 2007 , 34(3):269 [ 2] Nishoka K , Maeda T , Shimizu M .Eff ect of various in fu rnace conditions on blast furnace hearth drainage.IS IJ Int , 2005 , 45 (10):1196 [ 3] Zhao M G , Sun T L , Cheng S S.Numerical simulation of fluid flow in blast furnace hearth.J Iron S teel Res Int , 2005 , 12(6): 5 [ 4] Zhao M G, Zhang L J, C heng S S.Numerical simulation and parametri c study of residual slag volume in blast fu rnace hearth during hearth drainage ∥The 4 th Int ernationa l Congress on the Science and Technology of Iron-making Proceed ings.Osaka, 2006:26 [ 5] Xiong W , Bi X G , Zhou G F.Simulation study on gas pressu re drop characteristics in the low er zone of blast furnace .J Chem Eng Chin U niv , 2007 , 21(2):232 (熊玮, 毕学工, 周国凡.高炉下部气相压降特性的模拟研究. 高校化学工程学报, 2007 , 21(2):232) [ 6] Zhao M G .S tudy on Physical an d Numeri cal Sim ulation of Flow and Heat Transf er in Blast F urnace Hearth and Bottom [ Dissert ation] .Beijing :University of S cience and Technology Beijing, 2006:54 (赵民革.高炉炉缸炉底流动及传热物理与数值模拟研究[ 学 位论文] .北京:北京科技大学, 2006:54) [ 7] Zhu Y X.Calculation method of blast furnace salamander depth. Iron making , 2005 , 24(2):21 (朱远星.关于高炉死铁层深度的计算方法.炼铁, 2005 , 24 (2):21) [ 8] Zhu Q T , Cheng S S , Zhao M G .Calculation of proper salaman￾der depth in hearth∥Ann ua l Meeting of Iron and Steel in 2007 . Chengdu , 2007:3 (朱清天, 程树森, 赵明革.炉缸死铁层合理深度的计算 ∥ 2007 年钢铁年会论文集, 成都, 2007:3) [ 9] Zhang L J.Nu merical S imula tion for Transien t Fluid F low and Residual S lag Volume in Blast F urnace Hearth [ Disserta￾tion] .Beijing :University of S cience and Technology Beijing , 2006:41 (张利君.炉缸渣铁水瞬态流场及渣滞留量的数值模拟[ 学位 论文] .北京:北京科技大学, 2006:41) [ 10] Kaw ai H , Takahashi H .Solid behavior in shaft and deadman in a cold model of blast furnace with floating-sinking moti on of hearth packed bed studied by experimental and numerical DEM analyses.IS IJ Int , 2004 , 44:1140 · 228 · 北 京 科 技 大 学 学 报 第 31 卷