| 高炉内部气体流动与传热的模拟分析 |
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| 引用本文： | 黎想,冯妍卉,张欣欣,姜泽毅,田乃媛.高炉内部气体流动与传热的模拟分析[J].工业炉,2009,31(2):1-8. |
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| 作者姓名： | 黎想 冯妍卉 张欣欣 姜泽毅 田乃媛 |
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| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083
2. 北京科技大学冶金生态工程学院,北京,100083 |
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| 摘 要： | 分别建立了高炉内气体流动、传热的二维和一维数理模型，对高炉煤气流的流场、压力场和温度场进行了数值模拟，基于一维模拟温度结果预测了炉内气体成分变化，并分析了燃烧温度和鼓风速率对煤气流动及温度的影响。研究结果表明：简化的一维模型可适用于高炉煤气温度轴向变化的预测：鼓风速率和燃烧温度的变化影响软熔带的位置、炉内压力损失及炉顶煤气温度。在高炉实际操作中，合理的鼓风速率和燃烧温度是高炉炉况顺行的保障。
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| 关 键 词： | 高炉 煤气流 数值模拟 传热 |
Simulations of Gas Flow and Heat Transfer in Blast Furnace |
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| LI Xiang,FENG Yan-hui,ZHANG Xin-xin,JIANG Ze-yi,TIAN Nai-yuan.Simulations of Gas Flow and Heat Transfer in Blast Furnace[J].Industrial Furnace,2009,31(2):1-8. |
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| Authors: | LI Xiang FENG Yan-hui ZHANG Xin-xin JIANG Ze-yi TIAN Nai-yuan |
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| Affiliation: | LI Xiang, FENG Yan-hui, ZHANG Xin-xin, JIANG Ze-yi,TIAN Nai-yuan(1.Mechanical Engineering School,Beijing University of Science and Technology, Beijing 100083, China;2. Metallurgical and Ecological Engineering School, Beijing University of Science and Technology, Beijing 100083, China) |
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| Abstract: | The 2-D and 1-D mathematical models for the gas flow and heat transfer m Blast Furnace （BF） were built. The fields of fluid flow, pressure and temperature were numerically simulated. The distribution of gas composition along the axial direction is predicted based on the 1-D temperature results . The influences of combustion temperature and rate of air blast are further analyzed. It is shown that the simplified 1-D mathematical model is suitable for predicting the temperature distribution along the axial direction of BF. The position of the cohesive zone, pressure drop and top gas temperature are affected by both air blast rate and combustion temperature. Rational air blast rate and combustion temperature are required for the successful operation of BF. |
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| Keywords: | blast furnace gas flow numerical simulation heat transfer |
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