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第9期 孙海波等:注流方式对大方坯连铸结晶器内钢水流动与温度状态影响 .1137. 2 0.003m 0.2 =0.003m =0.3m Z=0.12m -0.12m 0.4 0.4 三0.4 0.6 Z=0.4 m Z0.4m Z=0.4m 温度K 温度K 温度K 0.6 0.8 0.6 1.0 0.8 0.8- (a) c 图9三种不同水口条件下结晶器内钢水温度场.(a)直通式:(b)四分径向式;()四分切向水口 Fig9 Tanperature distrbution ofmolten steel in the bbom mol with different SENs (a)straight sngle SEN:(b)quad-fureated SEN with outlets n radial direction:(c)quad-fureated SEN with outlets in tangential direction (3)新型四分切向水口使结晶器内钢水热中心 for bloan continuous casting moul Steemaking 2008 24(2): 上移,提高和均匀了弯月面处的温度、较其他两种 42 (高泽平,苏振江·大方坯连铸结晶器浸入式水口结构优化·炼 常规水口,弯月面处钢水温度可提高2~6℃,利于 钢,200824(2):42) 保护渣的熔化 [6]HodlH.FruenhuberK.VA NOX:Latest devebpments n VAI 综合表明,新型四分切向水口不仅可获得类似 stainless steel casting technolgy Metall Ital 2001 93(5):61 结晶器电磁搅拌的冶金效果,还具有稳定液面、活化 [7]Wang D.Hu K T.QuST etal Numerical siulation of electro 弯月面下钢水流动状态的综合效果, magnetic stirrng magnetic fiel for contnuous casting mouk J Imn StcelRes 2006.18(4):10 参考文献 (任东,胡坤太,仇圣桃,等方坯连铸结晶器电磁搅拌磁场的 [1]Thonas BG.M ika L J Najjar F M.Siulation of fuid fow in- 数值模拟.钢铁研究学报,200618(4):10) side a continuous slab casting mach ine Metall Trans B.1990,21 [8]Khomatov S Yokova S Jonsson L et a!Development of flow (2):387 fiel and temn peratre distrbution durng changng divergent angle [2]Hintikka S Konttnen J Leiviska K.Optin ization ofmolten steel of the nozzle when using sw irl flow in a squar continuous casting fow n continuous casting mol/Steemaking Confernce Pmoceed- billetmoul IIJ Int 2007.47(1):80 ings1992887 [9]Jia HH.Yu Z LeiZ S et al Water modelng on the effect of [3]W ang WW.Zhang JQ.Chen SQ et al Effect of nozzle outlet sw irlng flow nozzle on fow fiel in contnuous casting mold of bil angle on the fluid flow and level fuctation in a bloa castng let Acta Metall Sin 2008 44(3):375 moul JUniv Sei Technol Beijng 2007.29(8):816 (贾洪海,于湛,雷作胜,等.旋流水口对小方坯连铸结晶器流 (任维维,张家泉,陈素琼,等.水口侧孔倾角对大方坯结晶器 场影响的水模拟.金属学报,200844(3):375) 流场和液面波动的影响.北京科技大学学报,200729(8) [10]Tsukaguchi Y,Nakajnuma O.Jonsson P.et al Design of sw irling 816) sulmerged entry nozzkes for optinal head consmption beteen [4]Gu W A.Tang P.Wen G H.et al Study on submnerged entry tundish and mol SIJ It 2007.47(10):1436 nozzle w ith four outlets for bloan contnuous casting Iron Steel [11]Wu D F.Researh on Flid F low,HeatTransfer Inchision Move- 200843(4):101 ment and Electrumagnetic B rake in Bloon Mod [D issertation ] (顺武安,唐萍,文光华,等.大方坯连铸四孔浸入式水口的应 Beijng University of Science and Technology Beijing 2007:29 用研究.钢铁,200843(4):101) (吴狄峰,大方坯结晶器内钢液流动、传热、夹杂物运动及电 [5]Gao Z P.SuZ J Optin ization geaetry of submerged entry nozzle 磁制动研究学位论文]北京:北京科技大学,200729)第 9期 孙海波等: 注流方式对大方坯连铸结晶器内钢水流动与温度状态影响 图 9 三种不同水口条件下结晶器内钢水温度场.(a) 直通式;(b) 四分径向式;(c) 四分切向水口 Fig.9 TemperaturedistributionofmoltensteelinthebloommoldwithdifferentSENs:(a) straightsingleSEN;(b) quad-furcatedSENwithoutlets inradialdirection;(c) quad-furcatedSENwithoutletsintangentialdirection (3) 新型四分切向水口使结晶器内钢水热中心 上移‚提高和均匀了弯月面处的温度.较其他两种 常规水口‚弯月面处钢水温度可提高 2~6℃‚利于 保护渣的熔化. 综合表明‚新型四分切向水口不仅可获得类似 结晶器电磁搅拌的冶金效果‚还具有稳定液面、活化 弯月面下钢水流动状态的综合效果. 参 考 文 献 [1] ThomasBG‚MikaLJ‚NajjarFM.Simulationoffluidflowin- sideacontinuousslabcastingmachine.MetallTransB‚1990‚21 (2):387 [2] HintikkaS‚KonttinenJ‚LeiviskaK.Optimizationofmoltensteel flowincontinuouscastingmold∥SteelmakingConferenceProceed- ings‚1992:887 [3] WangW W‚ZhangJQ‚ChenSQ‚etal.Effectofnozzleoutlet angleonthefluidflowandlevelfluctuationinabloom casting mould.JUnivSciTechnolBeijing‚2007‚29(8):816 (王维维‚张家泉‚陈素琼‚等.水口侧孔倾角对大方坯结晶器 流场和液面波动的影响.北京科技大学学报‚2007‚29(8): 816) [4] GuW A‚TangP‚WenGH‚etal.Studyonsubmergedentry nozzlewithfouroutletsforbloom continuouscasting.IronSteel‚ 2008‚43(4):101 (顾武安‚唐萍‚文光华‚等.大方坯连铸四孔浸入式水口的应 用研究.钢铁‚2008‚43(4):101) [5] GaoZP‚SuZJ.Optimizationgeometryofsubmergedentrynozzle forbloomcontinuouscastingmould.Steelmaking‚2008‚24(2): 42 (高泽平‚苏振江.大方坯连铸结晶器浸入式水口结构优化.炼 钢‚2008‚24(2):42) [6] HödlH‚FrauenhuberK.VAINOXÒ :LatestdevelopmentsinVAI stainlesssteelcastingtechnology.MetallItal‚2001‚93(5):61 [7] WangD‚HuKT‚QiuST‚etal.Numericalsimulationofelectro- magneticstirringmagneticfieldforcontinuouscastingmould.J IronSteelRes‚2006‚18(4):10 (王东‚胡坤太‚仇圣桃‚等.方坯连铸结晶器电磁搅拌磁场的 数值模拟.钢铁研究学报‚2006‚18(4):10) [8] KholmatovS‚YokoyaS‚JonssonL‚etal.Developmentofflow fieldandtemperaturedistributionduringchangingdivergentangle ofthenozzlewhenusingswirlflowinasquarecontinuouscasting billetmould.ISIJInt‚2007‚47(1):80 [9] JiaHH‚YuZ‚LeiZS‚etal.Watermodelingontheeffectof swirlingflownozzleonflowfieldincontinuouscastingmoldofbil- let.ActaMetallSin‚2008‚44(3):375 (贾洪海‚于湛‚雷作胜‚等.旋流水口对小方坯连铸结晶器流 场影响的水模拟.金属学报‚2008‚44(3):375) [10] TsukaguchiY‚NakajnuraO‚JönssonP‚etal.Designofswirling submergedentrynozzlesforoptima1headconsumptionbetween tundishandmold.ISIJInt‚2007‚47(10):1436 [11] WuDF.ResearchonFluidFlow‚HeatTransfer‚InclusionMove- mentandElectromagneticBrakeinBloom Mold[Dissertation]. Beijing:UniversityofScienceandTechnologyBeijing‚2007:29 (吴狄峰.大方坯结晶器内钢液流动、传热、夹杂物运动及电 磁制动研究 [学位论文 ].北京:北京科技大学‚2007:29) ·1137·
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