高炉回旋区喷吹煤粉三维模拟

doi:10.12034/j.issn.1009-606X.217262

过程工程学报 ›› 2018, Vol. 18 ›› Issue (2): 265-273.DOI: 10.12034/j.issn.1009-606X.217262

高炉回旋区喷吹煤粉三维模拟

陈天，程树森^*

北京科技大学冶金与生态工程学院，北京 100083>

收稿日期:2017-06-23 修回日期:2017-08-15 出版日期:2018-04-22 发布日期:2018-04-10
通讯作者: 程树森 chengsusen@metall.ustb.edu.cn
基金资助:
国家自然科学基金青年项目;国家自然科学基金青年项目

Three-dimensional Modelling of Pulverized Coal Injection in Blast Furnace Raceway

Tian CHEN, Shusen CHENG^*

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received:2017-06-23 Revised:2017-08-15 Online:2018-04-22 Published:2018-04-10
Contact: CHENG Shu-sen chengsusen@metall.ustb.edu.cn

摘要/Abstract

摘要： 建立了高炉回旋区喷吹煤粉的气固两相流动、辐射和燃烧三维数学模型，用商业软件模拟了高炉回旋区内流场、温度场及组分变化，研究了鼓风富氧率、鼓风温度、鼓风速度对高炉回旋区的影响. 结果表明，气体在回旋区内的流动可分为沿风口方向的高速射流区和在回旋区上部的回旋流动. 回旋区内温度分布不均匀，回旋区下部温度较高，热量沿回旋区边界向上部传递. 沿风口中心线O2不断被消耗，CO2含量随O2含量减少而增加，在O2基本耗尽时达到峰值. 随CO不断生成，CO2含量逐步减少，直至消失. 提高鼓风富氧率、鼓风温度及增加鼓风速度能促进煤粉燃烧，提高煤粉燃烧速度.

关键词: 高炉, 回旋区, 喷吹煤粉, 煤粉燃烧, 数值模拟

Abstract: A three-dimensional mathematical model including gas?solid flow, radiation and coal combustion was established to simulate the pulverized coal injection in blast furnace raceway. With the help of commercial software, the flow field, temperature field and composition change in the raceway were simulated. The results showed that the flow pattern can be divided into two parts: a high-speed jet along the tuyere direction and a large-scale recirculation at the upper part of the raceway. The distributions of temperature field was not uniform, and the temperature was higher at the lower part of raceway and the heat transmits to the upper part along the boundary of the raceway. Oxygen was consumed constantly along the tuyere axis. The carbon dioxide content increased with the decrease of oxygen content and reached the maximum when the oxygen was almost exhausted. Then, the carbon monoxide content increased rapidly with the carbon dioxide content decreased. The increase of blast oxygen enrichment, blast temperature and blast rate can promote the combustion of pulverized coal and increase the burning speed of pulverized coal.

Key words: blast furnace, raceway, pulverized coal injection, pulverized coal combustion, numerical simulation

陈天程树森. 高炉回旋区喷吹煤粉三维模拟[J]. 过程工程学报, 2018, 18(2): 265-273.

Tian CHEN Shusen CHENG. Three-dimensional Modelling of Pulverized Coal Injection in Blast Furnace Raceway[J]. Chin. J. Process Eng., 2018, 18(2): 265-273.

参考文献

[1] 汤清华, 王筱留, 祁成林., 高炉喷吹煤粉知识问答 [M]. 第二版, 北京：冶金工业出版社，2016: 235.
[2]Kuwabara M, He J C, Muchi I.喷吹煤粉的大型高炉炉内状况的数值分析[J].钢铁, 1985, 20(10):5-8
[3]Jamaluddin A S, Truelove J S, Wall T F.Modeling of Coal Devolatilization and Its Effect on Combustion Calculations[J].Combustion Flame, 1985, 62(1):85-89
[4]Takeda K, Lockwood F C.Integrated Mathematical Model of Pulverised Coal Combustion in a Blast Furnace[J].ISIJ Int., 1997, 37(5):432-440
[5]Zhang S F, Bai C G, Wen L Y, et, al.Gas-Particle Flow and Combustion Characteristics of Pulverized Coal Injection in Blast Furnace Raceway[J].J Iron Steel Res Int, 2010, 17(10):8-12
[6]张仕洋，薛庆国，刘锦周，等.回旋区内喷吹煤粉燃烧行为的数值模拟[J].过程工程学报, 2014, 14(2):273-279
[7]Guo B Y, Zulli P, Rogers H, et, al.Three-dimensional Simulation of Flow and Combustion for Pulverised Coal Injection[J].ISIJ Int., 2005, 45(9):1272-1282
[8]Shen Y S, Guo B Y, Yu A B, et, al.Model Study of the Effects of Coal Properties and Blast Conditions on Pulverized Coal Combustion[J].ISIJ Int., 2009, 49(6):819-826
[9] 宿立伟，程树森．高炉回旋区内煤粉燃烧数值模拟 [C].2006年全国炼铁生产技术会议暨炼铁年会文集, 杭州: 中国金属协会， 2006: 400-402.
[10]Nogami H, Yamaoka H, Takatani K.Raceway Design for the Innovative Blast Furnace[J].ISIJ Int., 2004, 44(12):2150-2158
[11] Du S W, Ho C K, Tung C H.Numerical investigations into burning characteristics of pulverised coal within the BF raceway at various injection lances [C]. Collected Works of Baosteel BAC 2013, ShangHai: Metallurgical Industry Press, 2013: 300-304
[12]Du S W, Yeh C P, Chen W H, et, al.Burning characteristics of pulverized coal within blast furnace raceway at various injection operations and ways of oxygen enrichment[J].Fuel, 2015, 143(1):96-108
[13]Kobayashi H, Howard J B, Sarofim A F.Coal devolatilization at high temperature[J].Symposium (International) on Combustion, 1977, 16(1):411-425
[14]Ubhayakar S K, Stickler D B, Von Rosenberg C W, et al.Rapid Devolatilization of Pulverized Coal in Hot Gases[J].Symposium (International) on Combustion, 1977, 16(1):427-436
[15]Sivathanu Y R, Faeth G M.Generalized state relationships for scalar properties in non-premixed hydrocarbonair flames[J].Combust Flame, 1990, 82(2):211-230
[16]Jones W P, Whitelaw J H. Calculation Methods for Reacting Turbulent Flows [J]. Combustion Flame, 1982, 48: 1-26.
[17] Siegel R and Howell J R.Thermal Radiation Heat Transfer [M]. Washington DC: Hemisphere Publishing Corp, 1992.
[18]Cheng P.Two-dimensional radiating gas flow by a moment method[J].Aiaa J., 1964, 2(9):1662-1664
[19] 成兰伯.高炉炼铁工艺及计算 [M]. 北京：冶金工业出版社，1993: 218.
[20] 福武刚.高炉回旋区和炉缸工作文集 [M]. 杜鹤桂译. 北京：冶金工业出版社，1986: 48.

高炉回旋区喷吹煤粉三维模拟

Three-dimensional Modelling of Pulverized Coal Injection in Blast Furnace Raceway

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