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 ›› 2011, Vol. 32 ›› Issue (3): 12-14.

• 试验研究 • 上一篇    下一篇

立式板坯连铸机结晶器内液面波动的物理模拟

赵志刚1,2,胡坤太2,陈远清2,施哲1,仇圣桃2   

  1. 1昆明理工大学冶金与能源工程学院,昆明650093;
    2钢铁研究总院连铸技术国家工程研究中心,先进钢铁流程及材料国家重点实验室,北京100081
  • 收稿日期:2011-01-05 出版日期:2011-06-01 发布日期:2022-10-17
  • 通讯作者: 施哲,教授,昆明理工大学冶金与能源工程学院,昆明650093
  • 作者简介:赵志刚( 1985-),男,硕士研究生,2009年昆明理工大学毕业,连铸技术与仿真研究。
  • 基金资助:
    科技部科研院所技术开发研究专项资金项目(NC- STE-2006-JK-ZX-030)

Physical Modeling of Fluctuation of Liquid Level in Mold of Vertical Slab Concaster

Zhao Zhigang1,2, Hu Kuntai2, Chen Yuanqing2, Shi Zhe1,Qiu Shengtao2   

  1. 1 College of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093;
    2 The State Key Laboratory of Advanced Processes and Products for Iron and Steel, National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081
  • Received:2011-01-05 Published:2011-06-01 Online:2022-10-17

摘要: 为优化200 mm×1 300 mm立式板坯连铸结晶器浸入式水口,采用1:1水模型模拟研究水口结构参数(侧孔断面-40 mm×80 mm,40 mm×40 mm和侧孔角度+15°和-15°)以及工艺参数(浸入深度-100~130 mm,拉速0.45~0.65 m/min)对液面波动的影响。结果表明:水口结构参数对液面波动的影响较明显;侧孔断面40 mm×40 mm,侧孔角度+15°的2#水口的使用性能相对较好;浸入深度对液面波动量的影响不大;拉速对液面波动的影响与水口结构有关,对拉速变化的敏感程度由大到小的次序是2#水口(40 mm×40 mm,+15°),4#水口(40 mm×40mm,-15°),3#水口(40 mm×80 mm,-15°),1#水口(40 mm×80 mm,+15°)。

关键词: 立式连铸机, 结晶器, 液面波动, 浸人式水口

Abstract: In order to optimize the submerged entry nozzle (SEN) for 200 mm x 1 300 mm vertical slab casting mold, the effect of parameters of nozzle structure (cross section dimension of side port- 40 mm x40 mm and 40 mm x80 mm, and angle of port- + 15° and - 15°) and process parameters ( submerged depth 100 ~ 130 mm and casting speed 0. 45 ~ 0. 65 m/min) on fluctuation of liquid level has been simulated and studied by 1 : 1 water model. Results show that the effect of nozzle structure parameters on fluctuation of liquid level is more obvious and the structure of 2# nozzle with side port dimension 40 mm x40 mm and angle of port +15° has better service performance; the effect of submerged depth on fluctuation of liquid level isn' t appreciable ; and the effect of casting speed on fluctuation of liquid level relates to nozzle structure, and the descending order of sensitivity of nozzle structure to casting speed is nozzle 2#(40 mm x40 mm, +15°), nozzle 4#(40 mm x40 mm, - 15°) , nozzle 3# (40 mm x 80 mm, - 15°) and nozzle 1#(40 mm x 80 mm, + 15°).

Key words: Vertical Concaster, Mold, Fluctuation of Liquid Level, Submerged Entry Nozzle