| 水口类型对大方坯连铸结晶器内流场和温度场的影响 |
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| 引用本文： | 车晓梅,陈伟庆,赵江,马富平.水口类型对大方坯连铸结晶器内流场和温度场的影响[J].江西有色金属,2012(1):32-36. |
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| 作者姓名： | 车晓梅 陈伟庆 赵江 马富平 |
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| 作者单位： | [1]北京科技大学冶金与生态工程学院,北京100083 [2]邢台钢铁有限责任公司,河北邢台054027 [3]河北省线材工程技术研究中心,河北邢台054027 |
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| 摘 要： | 利用Fluent流体力学软件对直通式、侧二孔式、侧四孔式浸入水口对大方坯连铸结晶器内钢水流场和温度场进行了数值模拟.结果表明,从流场来看,直通式冲击深度最大,侧二孔式次之,侧四孔式最小,侧四孔式水口在结晶器内钢水能形成上、下两个回流,其下回流涡心较直通式水口从590 mm上移至270 mm,有利于夹杂物的上浮.从温度场来看,侧二孔式和侧四孔式较直通式水口使结晶器内热中心明显上移,且其弯月面钢水温度比直通式分别提高了6 K和4 K,有利于保护渣的熔化.
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| 关 键 词： | 水口 结晶器 流场 温度场 数值模拟 |
Effects of SENs types on flow patterns and temperature distribution in bloom mold |
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| CHE Xiao-mei,CHEN Wei-qing,ZHAO Jiang,MA Fu-ping.Effects of SENs types on flow patterns and temperature distribution in bloom mold[J].Jiangxi Nonferrous Metals,2012(1):32-36. |
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| Authors: | CHE Xiao-mei CHEN Wei-qing ZHAO Jiang MA Fu-ping |
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| Affiliation: | 2,3 (1.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China; 2.Xingtai Iron and Steel Company,Xingtai 054027,China;3.Hebei Wire Engineering Research Centre,Xingtai 054027,China) |
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| Abstract: | The flow field and temperature distribution of molten steel in the bloom casting mold have been simulated under the conditions of single straight SEN,side two-furcated SEN,and side quad-furcated SEN by using hydrodynamic software fluent.Results showed that,seeing from flow field,the impingement depth of single straight SEN was the largest,that of side two-furcated SEN was larger,and the depth of side quad-furcated SEN was smallest.The upper and lower double rolls were formed in the side quad-furcated SEN mold.The vorticity of center of the lower roll changed from 590 mm to 270 mm compared with that of single straight SEN,in favor of the remove of inclusions.As seen from temperature distribution,the thermal center moved upward obviously and center temperature of the shell increased 6 K and 4 K respectively with the side two-furcated SEN and the side quad-furcated SEN,which contributed to the melt of mold power. |
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| Keywords: | nozzle mould fluid flow temperature distribution numerical simulation |
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