ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2018, Vol. 39 ›› Issue (1): 9-12.

• 试验研究 • 上一篇    下一篇

220mm x 1600mm板坯连铸浸入式水口倾角优化的数值模拟和应用

宁林新1,2 ,解家英1,2 ,刘金刚1,2 ,张利君1,2   

  1. 1、首钢技术研究院,北京 100043;
    2、绿色可循环钢铁流程北京市重点实验室,北京 100043 ;
  • 收稿日期:2017-08-03 出版日期:2018-02-01 发布日期:2022-06-28
  • 作者简介:宁林新(1979-),女,硕士(2004年北京科技大学),高级工程师,2001年北京科技大学(本科)毕业,冶金过程中的数值模拟仿真研究。

Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application

Ning Linxin1,2 , Xie Jiaying1,2 , Liu Jingang1,2 , Zhang Lijun1,2   

  1. 1. Shougang Research Institute of Technology, Beijing 100043 ;
    2. Beijing Key Lab for Green Recyclable Process for Iron and Steel Production, Shougang Group, Beijing 100043 ;
  • Received:2017-08-03 Published:2018-02-01 Online:2022-06-28

摘要: 使用数值模拟方法研究了拉速0.9m/min时,水口倾角-7°~-11°对220mm×1600mm板坯结晶器内坯壳厚度、坯壳温度和自由液面流动的影响。模拟和应用结果得出,以拉速0.8m/min,水口倾角-15°工艺下钢液流动为标准,通过对比计算结果与标准工艺曲线,确定在0.9m/min拉速时,水口倾角为-11°为最佳工艺方案。生产应用结果表明,采用优化工艺后结晶器窄面报警频率由原15次/月降至0次/月,铸坯表面质量也有一定改善。

关键词: 220mmx1600mm板坯, 连铸, 结晶器, 浸入式水口, 倾角, 数值模拟

Abstract: The effect of inclination of submerged nozzle -7°~-11° with casting speed 0.9m/min on shell thickness ,shell temperature and free surface flow in mold for 220mm x 1600mm slab has been studied by numerical simulation method. The simulation and application results show that taking liquid steel flow with casting speed 0.8m/min and inclination of nozzle -15° as criterion and compared calculation results with criterion process curves the optimizing process scheme is nozzle inclination -11° with casting speed 0.9m/min. Commercial production application results show that after using the optimization process the mold narrow face alarm rate of recurrence per month from 15 times to 0 time and the quality of cast slab surface has definite improvement.

Key words: 220mmx1600mm Slab, Continuous Casting, Mold, Submerged Nozzle, Inclination, Numerical Simulation