Numerical Simulation of a New Type Submerged Entry Nozzle for 200 mm x 200 mm Billet Continuous Casting

陈远清; 尚正鸿; 陶乃标; 王进; 仇圣桃

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Numerical Simulation of a New Type Submerged Entry Nozzle for 200 mm x 200 mm Billet Continuous Casting

更新时间：2026-01-21

- Numerical Simulation of a New Type Submerged Entry Nozzle for 200 mm x 200 mm Billet Continuous Casting
- Special Steel Vol. 35, Issue 2, Pages: 13-15(2014)
- 作者机构：
  
  1. 张家港联峰钢铁研究所有限公司,张家港,215628
  2. 钢铁研究总院连铸技术国家工程研究中心,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：15 October 2013，
  
  Online First：07 September 2022，
  
  Published：07 September 2014
- 稿件说明：
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陈远清, 尚正鸿, 陶乃标, et al. Numerical Simulation of a New Type Submerged Entry Nozzle for 200 mm x 200 mm Billet Continuous Casting[J]. Special Steel, 2014, 35(2): 13-15.
DOI：

陈远清, 尚正鸿, 陶乃标, et al. Numerical Simulation of a New Type Submerged Entry Nozzle for 200 mm x 200 mm Billet Continuous Casting[J]. Special Steel, 2014, 35(2): 13-15. DOI：

摘要

为了减轻水口侧孔射流对凝固坯壳的冲刷

便于侧孔水口在较小断面的方坯连铸上使用

提出扇形侧孔的水口设计理念。利用结晶器内钢水流动、传热的三维数学模型

分析比较了直筒形水口、矩形侧孔水口和扇形侧孔水口条件下200 mm×200 mm的方坯结晶器内的流场及温度场特征。研究结果表明

侧孔水口能降低射流冲击深度

促进夹杂物上浮

并提高弯月面温度和活跃程度

有利于化渣;扇形侧孔射流较分散

对凝固坯壳的冲刷作用显著减弱。

Abstract

In order to alleviate the impact of flow jet of nozzle side-ports on solidifying shell and easy to use the sideport nozzle to the mold for casting square billet with smaller cross section

a design idea of submerged entry nozzle ( SEN) with flabelliform side-ports is advanced. The characteristics of flow field and temperature field in mold for casting 200 mm x 200 mm billet with straight channel nozzle

rectangular side-ports nozzle and flabelliform side-ports nozzle are analyzed and compared by using three dimension math model of fluid flow and heat transfer in mold. Research results show that the side-ports nozzle is available to reduce the impact depth of flow jet

improve the inclusions floating up

and increase the temperature and activity of liquid at meniscus and favorable to smelt slag; the flow from flabelliform side-port is more disperse

so the effect of impact on solidifying shell is sharply decreasing.

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