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真空脱气过程中钢水温降的理论分析

Theoretical analysis of molten steel temperature decrease in process of vacuum degassing
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摘要 为了研究真空脱气过程中影响钢水温降的主要因素,从而找到对应的措施控制钢水温降,对VD过程的传热模式和传热机理进行了分析,根据国内某厂的实际情况,结合数值模拟方法分别得到了烘烤过程和LF加热过程中钢包温度场的变化,以LF结束时的温度值作为初始值对VD过程的温度场进行了模拟。根据模拟结果分别计算了渣面和钢水裸露面的热辐射、钢包衬蓄热、包壁和包底的传导散热和氩气吸热等因素造成的钢水散热量,对其影响程度进行了评估。通过计算发现,渣面、钢水裸露面的热辐射和包衬蓄热是造成VD过程钢水温降的主要因素,分别根据各个因素的影响特点提出了控制钢水温降的具体措施。 The factors influencing the temperature decrease of molten steel in the process of vacuum degassing(VD)are investigated and the model of heat transfer mechanism of VD process are analyzed for finding the corresponding measures to control the temperature of molten steel. Temperature field of baking and LF process are obtained through numerical simulation and the temperature field of VD process is simulated taking the temperature of the end of LF process as an initial condition. Heat release and its proportion caused by exposed molten steel and slag surface radiation,ladle heat storage,heat transfer of ladle wall and bottom,and argon gas absorption of heat are estimated respectively according to the temperature field of ladle obtained by numerical simulation and actual situation of a domestic factory. It is found through the calculation that the slag surface radiation and heat storage of ladle lining are the main factors to molten steel temperature decrease in the VD process. Specific measures are put forward according to the characteristics of various factors influencing steel temperature decrease.
出处 《辽宁科技大学学报》 CAS 2016年第2期81-88,共8页 Journal of University of Science and Technology Liaoning
基金 国家自然科学基金面上项目:抽锭式电渣重熔过程中渣/金界面液-固转变行为及漏钢漏渣机理研究(51374126) 国家自然科学基金钢铁联合基金项目:以CCM-I-ESRW为核心技术的新流程制备大型镍基合金铸锭的基础研究(U1560203)
关键词 真空脱气 温降 热辐射 包衬蓄热 vacuum degassing temperature decrease heat radiation ladle heat storage
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参考文献29

  • 1OMOTANI M A,HEASLIP L J,MCLEAN A.Ladle temperature control during continuous casting[J].Iron and Steelmaker,1983(10):29-35.
  • 2SAMWAYS N L,DANCY T E.Factors affecting temperature drop between tapping and teeming[C]//Proceedings Electric Furnace Conference,Chicago,1960(17):268-283.
  • 3AUSTIN P R,HE Q L,REX A J,et al.Thermal modeling of steel ladles[C].Steelmaking conference proceeding,Toronto,1992(75):317-323.
  • 4?AMDALIü,TUN?M,DIKEC F.A thermodynamic analysis of a steel production step carried out in the ladle furnace[J].Applied Thermal Engineering,2001(21):643-655.
  • 5ZORYK A,REID P M.On-line liquid steel temperature control[J].Iron and Steelmaker,1993,20(6):21-27.
  • 6张再华,王志道.110 t钢水罐热损失测定及分析[J].冶金能源,1987,6(1):43-47.
  • 7TOMAZIN C E,UPTON E A,WALLIS R A.The Effect of ladle refractories and practices on steel temperature control[J].Iron and Steelmaker,1986(6):28-32.
  • 8HLINA J W,CRAMB A W,BRIGHT D H.A model for predicting the thermal history of a ladle of steel[J].Steelmaking Conference proceeding,1985(68):35-47.
  • 9KOO Y S,KANG T,LEE I R,et al.Thermal cycle model of ladle for steel temperature control in melt shop and its application[C]//Steelmaking conference proceedings,1989:415-421.
  • 10OLIKA B,BJ?RKMAN B.Prediction of steel temperature in ladle through time temperature simulation[J].Scandinavian Journal of Metallurgy,1993,22(4):213-218.

二级参考文献24

  • 1鲁开嶷.连铸钢液温度变化规律及控制的研究[J].冶金能源,1993,12(3):16-21. 被引量:2
  • 2李顶宜,王永然,曹永国,杨守礼.连铸用钢水温度传热物理数学模型[J].钢铁,1996,31(11):17-21. 被引量:6
  • 3龙和平.涟钢三炼钢水温降规律研究.武汉科技大学硕士生毕业论文[M].,1999..
  • 4张再华 王志道.110t钢水缶热损失测定与分析[J].冶金能源,1987,6(1):43-43.
  • 5杨世铭.传热学[M].西安:西安交大出版社,1982.168.
  • 6郭良宽 孔祥谦 等.计算传热学[M].合肥:中国科学技术大学出版社,1988.59-69.
  • 7周筠清.传热学[M].北京:冶金工业出版社,1992..
  • 8傅杰.发展我国钢的二次精炼技术的建议[J].特殊钢,1999,20:23-25.
  • 9张春霞,中国稀土学报,1998年,16卷,专辑,549页
  • 10Sano M,ISI J Int,1993年,33卷,8期,855页

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