Effect of Design Parameters of Oxygen Lance Nozzle for 110 t Combined Blown Converter on Metallurgical Quality of Liquid Steel

刘煜; 朱荣; 刘福海

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Effect of Design Parameters of Oxygen Lance Nozzle for 110 t Combined Blown Converter on Metallurgical Quality of Liquid Steel

更新时间：2026-01-21

- Effect of Design Parameters of Oxygen Lance Nozzle for 110 t Combined Blown Converter on Metallurgical Quality of Liquid Steel
- Special Steel Vol. 35, Issue 6, Pages: 47-50(2014)
- 作者机构：
  
  北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：05 July 2014，
  
  Online First：20 August 2022，
  
  Published：20 August 2014
- 稿件说明：
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刘煜, 朱荣, 刘福海. Effect of Design Parameters of Oxygen Lance Nozzle for 110 t Combined Blown Converter on Metallurgical Quality of Liquid Steel[J]. Special Steel, 2014, 35(6): 47-50.
DOI：

刘煜, 朱荣, 刘福海. Effect of Design Parameters of Oxygen Lance Nozzle for 110 t Combined Blown Converter on Metallurgical Quality of Liquid Steel[J]. Special Steel, 2014, 35(6): 47-50. DOI：

摘要

通过建立的几何模型

利用Fluent软件对出钢量110 t顶底复吹转炉氧枪喷头参数（夹角12°~13°

孔数4

流量22000~24000 m

/h）对射流影响进行三维数值模拟

在1.1~1.4 m枪位

喷孔夹角12.5°的4孔氧枪可保持射流半径适中和较高的射流速度。钢厂冶炼45钢

Q235和HRB400钢的应用实践表明

采用12.5°喷头喷孔夹角

93炉次22000 m

/h氧气流量时110 t钢水的平均冶炼时间为14.8 min

终点碳符合冶炼钢种要求

终点[P

]

0.010%~0.030%

脱磷率≥96%。

Abstract

Based on established geometric model the three dimensional numerical simulation on the effect of oxygen lance nozzle parameters (angle between nozzle 12° ~ 13°

nozzle number 4

flow rate 22000 ~ 24000 m

/h) of top and bottom combined blown converter tapping 110 t liquid steel on jet has been carried out by using software Fluent to get that with nozzle angle 12. 5° 4-nozzle oxygen lance at 1. 1 ~ 1. 4 m lance level the suitable radius and higher jet speed may maintain. The application practice of 93 heats 0. 45 C steel

Q235 and HRB400 steel steelmaking at steel works shows that with 12. 5° nozzle angle and oxygen flow rate 22000 m

the average tap to tap time of 110 t liquid is 14. 8 min

the end carbon meets the requirement of melting steel grades

the end [P

]

0. 010% ~ 0.030% and the dephosphorizing rate of liquid ≥96%.

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