中国机械工程

• 机械基础工程 • 上一篇    下一篇

新型结晶器基本参数研究及其内钢液行为仿真

周超1,2;任素波1;张兴中1;刘晶晶1;白明华1   

  1. 1.燕山大学国家冷轧板带装备及工艺工程技术研究中心,秦皇岛,066004
    2.河北农业大学,秦皇岛,066003
  • 出版日期:2016-06-10 发布日期:2016-06-08
  • 基金资助:
    河北省自然科学基金资助项目(E2014203261);国家冷轧板带装备及工艺工程技术研究中心开放课题(NECSR-201309);燕山大学青年教师自主研究计划资助项目(15LGA001)

Basic Parameters in a New Bloom Crystallizer and Simulation on Its Inner Liquid Steel Behavior

Zhou Chao1,2;Ren Subo1;Zhang Xingzhong1;Liu Jingjing1;Bai Minghua1   

  1. 1.National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao,Hebei,066004
    2.Agricultural University of Hebei,Qinhuangdao,Hebei,066003
  • Online:2016-06-10 Published:2016-06-08
  • Supported by:

摘要: 为降低立式连铸机的高度,减小设备尺寸,依据经验公式计算特大方坯连铸机拉坯速度及液相穴深度。根据计算结果及可行性分析,认为拉坯速度为0.2m/min较为适合。基于结晶器传热学理论分析,提出了一种新型结晶器,即回字形结晶器。模拟分析了在结晶器内部设置内冷却器及偏转水口的作用,分析结果表明回字形结晶器可以提高传热效率,减少中心偏析,形成水平旋流以利于均匀钢水成分及坯壳生长,降低钢水冲击深度,达到电磁搅拌的冶金效果。经计算证明,采用回字形结晶器可以降低铸坯液相穴深度,从而降低铸机基础建设费用。

关键词: 特大方坯连铸, 结晶器, 内冷却器, 液相穴计算

Abstract: In order to reduce the height of vertical continuous casting machine and diminish the equipment dimension, the casting speed and liquid core depth were calculated according to empirical formulas.Based on calculation and feasibility analysis,the appropriate casting speed is as 0.2m/min. A new crystallizer depended on thermo analysis was put forward,which was a crystallizer technology with an inner cooling apparatus.The function of setting inner cooling and deflected nozzle were analyzed, which indicated that the crystallizer with an inner cooling apparatus could improve heat transfer efficiency, reduce center segregation, form level swirling flow ,uniform steel component and growing of the shell, reduce the impact depth, achieve the metallurgical effect of electromagnetic stirring. Calculation results show that the crystallizer with an inner cooling apparatus may reduce the liquid core depth and infrastructure fee of caster.

Key words: super-large size square billet continuous casting, crystallizer, inner cooling apparatus, liquid phase point calculation

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