Please wait a minute...
金属学报  1992, Vol. 28 Issue (12): 29-38    
  论文 本期目录 | 过刊浏览 |
氧气顶吹转炉中二次燃烧现象的数学模型
贺友多;Y.SAHAI
包头钢铁学院;教授;包头014010;The;OHIOStateUniv.材料科学与工程系
A MATHEMATICAL MODEL TO PREDICT PROCESS OF POST-COMBUSTION IN BOF
HE Youduo (Baotou Institute of Iron and Steel Technology); Y. SAHAI (The Ohio State University; U.S.A.)
引用本文:

贺友多;Y.SAHAI. 氧气顶吹转炉中二次燃烧现象的数学模型[J]. 金属学报, 1992, 28(12): 29-38.
, . A MATHEMATICAL MODEL TO PREDICT PROCESS OF POST-COMBUSTION IN BOF[J]. Acta Metall Sin, 1992, 28(12): 29-38.

全文: PDF(734 KB)  
摘要: 开发了包括K-ε双方程湍流模型、燃烧反应的混合分数f和湍流燃烧浓度波动g的三维湍流燃烧数学模型,并应用于氧气顶吹转炉的二次燃烧过程中,在未涉及到辐射传热、多相流动以及有限反应速率等问题的情况下,得到了氧气顶吹转炉中二次燃烧时废气的流动方式,温度分布及火焰形状等结果,还研究了氧枪的高度和二次吹氧孔的水平夹角对冶炼的影响。
关键词 湍流燃烧顶吹氧气转炉二次燃烧火焰形状    
Abstract:A three dimensional turbulent combustion mathematical model, which contained K-ε two equation model for turbulent flow, mixture fraction f, for combustion reaction and concentration fluctuation g, for turbulent combustion, was developed and successfully applied to post-combustion process in BOF, even though the model did not address problems, such as, radiation, multi-phase flow and finite reaction rate, as the ones exist in real process. Nevertheless, some interesting results of off-gases flow pattern, temperature profile, and the shape of the turbulent flame of post-combustion in BOF were worked out. Two controllable parameters, lance height and the angle of sub-hole to horizontal were studied.
Key wordsturbulent combustion    basic oxygen furnace    post-combustion    flame shape
    
1 Ito K, Fruehan R J. Metall Trans, 1989; 20B:509, 515
2 Szekely J. TMS Fall Extractive Meeting, Cologne, West Germany, Jom, 1990:16
3 Robertson T, Moore P, Hawkins R J. Ironmaking Steelmaking, 1986; 13:195
4 Takashiba N, Kojima S, Take H, Okuda H. In: Peter H Scholes ed., Steel Technology International 1989, Sterling Publication Int Ltd,
5 Turner G, Jahanshahi S. Trans Iron Steel lnst Jpn, 1987; 27:734
6 Hirai M, Tsujino R, Mukai T, Harada T, Omori M. Trans Iron Steel Inst Jpn, 1987; 27; 805
7 Koto Y, Grosjean J, Reboul J, Riboud P. Trans Iron Steel Inst Jpn, 1988; 28:287
8 Sugiyama S, Abe M, Nishioka S, Nakamura H, Takahashi K, Kawai Y. Trans Iron Steel lnst Jpn, 1987; 27:B-49
9 Spalding D B. Combust Sci Technol, 1976; 13:3
10 Pun W U, Spalding D B. In: Lunc M ed., Proc Int'l Astronautical Federation Meeting, Vol.Ⅲ, Belgrade, International Academy of Astronautical, Oxford: Pergamon, 1968:3-21
11 Gosman A D, Lockwood F C. In: Afgan N H ed., Proc Int'l Seminar on Heat Transfor From Flames, Torgir, Yugoslavia, New York: Wiley, 1974
12 Gosman A D, Lockwood F C. 14th Symposium (Int'l) on Combustion, Penn. State Univ., Combustion Institute, Pittsburgh, 1973:661-671
13 Spalding D B. Proc 13th Symposium (Int'l) on Combustion, The Univ. of Utah, Combustion Institute, Pittsburgh, 1971:649-657
14 Elghobashi S E, Pun W M. Proc 15th Symposium (Int'l) on Combustion, Tokyo, Combustion Institute, Pittsburgh, 1975:1353-1365
15 Khalil E E. Modeling of Furnaces and Combustors, Kent, Abacus Press, 1982
16 Gapta A K, Lilly D G. Flowfield Modeling and Diagnostics, Kent, Abacus Press, 1985
17 Spalding D B. Chem Eng Sci, 1971; 26:95
18 Reid R C, Prausnitz J M, Poling B E. The Properties of Gases and Liquids, New York, McGraw-Hill. 1986
[1] 李保卫;贺友多. 顶吹转炉内二次燃烧初期的一个数学模型[J]. 金属学报, 1996, 32(2): 169-174.