| 粒化钢渣相变传热过程数值模拟 |
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| 引用本文： | 邢宏伟,王晓娣,龙跃,张玉柱. 粒化钢渣相变传热过程数值模拟[J]. 钢铁钒钛, 2010, 31(1): 79-83 |
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| 作者姓名： | 邢宏伟 王晓娣 龙跃 张玉柱 |
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| 作者单位： | 河北理工大学冶金与能源学院,河北,唐山,063009 |
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| 基金项目： | 国家科技支撑计划资助项目(2008BAE67B02);;973前期专项资助项目(2008CB617602) |
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| 摘 要： | 通过建立球形熔渣凝固过程的物理和数学模型,利用现代CFD设计软件FLUENT对不同粒径渣粒的凝固过程进行了数值模拟,得到了凝固过程中渣粒和周围气体的温度场,从而确定了渣粒完全凝固的时间,为熔渣粒化和余热回收设备的设计提供了理论基础。结果表明:渣粒初始温度1 823 K,渣粒直径为1~3 mm,冷却气体温度为373 K,冷却气体流速为1~20 m/s时,液态钢渣相变过程在2 s内释放出80%以上的热量。说明在氮气冷却条件下,只要保证一定的冷却时间,即可保证钢渣余热回收。
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| 关 键 词： | 粒化钢渣 相变 传热 温度场 凝固时间 余热回收 数值模拟 |
Numerical Simulating for Phase-change Heat Transfer Process of Slag Granule |
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| Xing Hongwei,Wang Xiaodi,Long Yue,Zhang Yuzhu. Numerical Simulating for Phase-change Heat Transfer Process of Slag Granule[J]. Iron Steel Vanadium Titanium, 2010, 31(1): 79-83 |
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| Authors: | Xing Hongwei Wang Xiaodi Long Yue Zhang Yuzhu |
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| Affiliation: | College of Metallurgy and Energy;Hebei Polytechnic University;Tangshan 063009;Hebei;China |
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| Abstract: | The physical and mathematical models of solidification process of spherical molten steel slag granule have been established in this paper.The temperature fields of slag sphere and its outer gas could be calculated through the FLUENT software.Consequently,the solidification time of the slag sphere with different diameter could be gained.It is believed that the numerical simulated results would provide the theoretical basis for granulating molten slag and heat recovery equipment layout of molten slag.The nume... |
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| Keywords: | molten steel slag granular phase change heat transfer temperature field solidification time residual heat recuperation numerical simulation |
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