Optimizing cooling approach of spiral coil for an electromagnetic steel teeming system of ladle in continuous casting production  

作　　者：Ming He Qing-wei Wang Li-jia Zhao Wang-zhong Mu Xing-an Liu Qiang Wang 

机构地区：[1]College of Horticulture,Shenyang Agricultural University,Shenyang,110866,Liaoning,China [2]Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang,110819,Liaoning,China [3]Key Laboratory of Protected Horticulture(Ministry of Education),Shenyang Agricultural University,Shenyang,110866,Liaoning,China [4]Department of Materials Science and Engineering,KTH Royal Institute of Technology,Stockholm,10044,Sweden

出　　处：《Journal of Iron and Steel Research International》2025年第1期85-94,共10页钢铁研究学报(英文版)

基　　金：supported by the Startup Foundation of Shenyang Agriculture University(No.X2023050);the Fundamental Research Funds for the Central Universities(No.N2209006);the National Natural Science Foundation of China(No.U22A20173).

摘　　要：To address the current issues with the conventional slide gate system utilized in the steel teeming process,a unique electromagnetic induction controlled automated steel teeming(EICAST)technology has been developed.Cooling means of spiral coil in this technology is directly related to its service life.Firstly,heat transfer processes of air cooling and spray cooling were compared and analyzed.Secondly,the impacts of water temperature,water flow rate and air flow rate were examined in order to maximize the spray cooling effect.To maintain coil temperature at a low value consistently throughout the entire thermal cycle process of the ladle,a combined cooling mode was finally employed.Numerical simulation was applied to examine the coil temperature variation with different cooling systems and characteristics.Before coil operation,spray cooling is said to be more effective.By controlling the water flow rate and air flow rate,the spray cooling effect is enhanced.However,water temperature has little or no impact when using spray cooling.Air cooling during the secondary refining process and spray cooling prior to coil operation are combined to further lower coil temperature.When the direction of the spray cooling is from bottom to top,the coil temperature is lowered below 165℃.A practical induction coil cooling plan was provided for the EICAST technology’s production process.

关 键 词：Electromagnetic induction controlled automated steel teeming technology Spiral coil Spray cooling Heat transfer Continuous casting 

分 类 号：TG1[金属学及工艺—金属学]