Vol.28 No.6 夏德宏等：金属镁还原炉中烟气流动对传热过程的影响 .569, 原工艺中倒焰式双排罐还原炉内的流动情况，计 参考文献 算结果揭示了烟气流动对镁还原炉内传热过程的 [1]Ficara P,Chia E,Walker T.A novel commercial process for 影响，为改进镁还原炉结构、提高镁还原炉热效率 the primary production of magnesium.CIM Bull.1998(4): 提供依据。 75 (2)计算结果表明，现在我国广泛采用的镁还 [2]冯乃祥，彭建平，吴秀铭，提高我国镁治金技术增强镁工业 的竞争力.轻金属，2002(9)：51 原炉内的烟气流动在还原罐轴向上分布不均，烟 [3]陈振华，严红革，陈吉华等.镁合金北京：化学工业出版 气热损失很大， 社，2004 (③)关闭还原炉内上层罐对应的过火孔将有 [4]Launder B E.Spalding D B.Lectures in mathematical models 利于强化烟气对上下两层罐的绕流，尤其将加强 of turbulence.London:Academic Press,1972 烟气对下层罐的对流换热 [5]陶文铨，数值传热学.西安：西安交通大学出版社，2001 [6]刘宏专，徐日瑶。硅热法炼镁时球团在加热过程中的传热 (4)关闭还原炉内上层罐对应的过火孔，减少 及温度分布.轻金属，1995(10)：40 燃煤量，能保证还原炉的正常生产，同时还将节约 [7]Avedesian MM,Baker H.ASM speciality handbook magne- 16%左右的能源消耗 sium and magnesium alloys.Ohio:ASM International Materi- als Park.1999 Flow effect on thermal process of magnesium reduction furnace XIA Dehong,ZHA NG Gang,GUO Liang,YU Tao Mechanical Engineering School.University of Science and Technology Beijing,Beijing 100083.China ABSTRACI Gas flow in a magnesium reduction furnace was numerically simulated with the comprehen sive CFX software,and the effect of the gas flow on heat transfer process in the magnesium reduction fur- nace was studied.Based on the simulation,some practical measures were put forward to enhance the heat efficiency of Pidgeon process.In the measures the improvement of flow field inside the furnace is very im- portant. KEY WORDS reduction furnace;thermal conduction:temperature field;flow field原工艺中倒焰式双排罐还原炉内的流动情况‚计 算结果揭示了烟气流动对镁还原炉内传热过程的 影响‚为改进镁还原炉结构、提高镁还原炉热效率 提供依据． （2）计算结果表明‚现在我国广泛采用的镁还 原炉内的烟气流动在还原罐轴向上分布不均‚烟 气热损失很大． （3）关闭还原炉内上层罐对应的过火孔将有 利于强化烟气对上下两层罐的绕流‚尤其将加强 烟气对下层罐的对流换热． （4）关闭还原炉内上层罐对应的过火孔‚减少 燃煤量‚能保证还原炉的正常生产‚同时还将节约 16％左右的能源消耗． 参 考 文 献 ［1］ Ficara P‚Chia E‚Walker T．A novel commercial process for the primary production of magnesium．CIM Bull‚1998（4） ： 75 ［2］ 冯乃祥‚彭建平‚吴秀铭．提高我国镁冶金技术增强镁工业 的竞争力．轻金属‚2002（9）：51 ［3］ 陈振华‚严红革‚陈吉华等．镁合金．北京：化学工业出版 社‚2004 ［4］ Launder B E‚Spalding D B．Lectures in mathematical models of turbulence．London：Academic Press‚1972 ［5］ 陶文铨．数值传热学．西安：西安交通大学出版社‚2001 ［6］ 刘宏专‚徐日瑶．硅热法炼镁时球团在加热过程中的传热 及温度分布．轻金属‚1995（10）：40 ［7］ Avedesian M M‚Baker H．ASM speciality handbook magne￾sium and magnesium alloys．Ohio：ASM International Materi￾als Park‚1999 Flow effect on thermal process of magnesium reduction furnace XIA Dehong‚ZHA NG Gang‚GUO L iang‚Y U T ao Mechanical Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China ABSTRACT Gas flow in a magnesium reduction furnace was numerically simulated with the comprehen￾sive CFX software‚and the effect of the gas flow on heat transfer process in the magnesium reduction fur￾nace was studied．Based on the simulation‚some practical measures were put forward to enhance the heat efficiency of Pidgeon process．In the measures the improvement of flow field inside the furnace is very im￾portant． KEY WORDS reduction furnace；thermal conduction；temperature field；flow field Vol．28No．6 夏德宏等： 金属镁还原炉中烟气流动对传热过程的影响 ·569·