气基直接还原铁(DRI)竖炉内的气流分布对DRI生产过程有着重要影响.利用分析软件ANSYS对直接还原铁竖炉内还原气气流分布规律及其影响因素进行研究.模拟分析中将球团矿简化为多孔介质,通过试验测得的惯性阻力系数和黏性阻力系数作为模拟过程的一个基础输入参数.将计算结果通过神经网络找到相互的映射关系,得到气基竖炉部分工艺参数与炉内压强、过渡段串流情况的关系.通过遗传算法优化,得出竖炉内理想气流分布时的状态影响因素.研究结果显示,炉内气流分布状况与状态影响因素有直接关系,并得出影响竖炉内合理流场的主要状态影响因素为炉顶压强和冷却气出口压强.
参考文献
| [1] | 周渝生,钱晖,张友平,冯华堂.非高炉炼铁技术的发展方向和策略[J].世界钢铁,2009(01):1-8. |
| [2] | 李永全,陈宏,周渝生,李咸伟,甘青松,陈炳庆.BL法直接还原工艺研究和开发[J].钢铁,1999(09):6-10. |
| [3] | 方觉.非高炉炼铁工艺与理论[M].北京:冶金工业出版社,2002 |
| [4] | Zafar Hayat Khan;David Pritchard.Liquid-vapour fronts in porous media: Multiplicity and stability of front positions[J].International Journal of Heat and Mass Transfer,2013:1-17. |
| [5] | 贝尔J.多孔介质流体动力学[M].北京:中国建筑工业出版社,1983 |
| [6] | Pore-scale modeling of viscoelastic flow in porous media using a Bautista-Manero fluid[J].International journal of heat and fluid flow,2009(6):1202. |
| [7] | Nikolay A. Kudryashov;Mark B. Kochanov;Viktoria L. Savatorova .Approximate self-similar solutions for the boundary value problem arising in modeling of gas flow in porous media with pressure dependent permeability[J].Applied mathematical modelling,2013(7):5563-5573. |
| [8] | Gao, X.;Zhu, Y.-P.;Luo, Z.-H. .CFD modeling of gas flow in porous medium and catalytic coupling reaction from carbon monoxide to diethyl oxalate in fixed-bed reactors[J].Chemical Engineering Science,2011(23):6028-6038. |
| [9] | Wei Zhong;Guoliang Tao;Xin Li;Kenji Kawashima;Toshiharu Kagawab .Determination of flow rate characteristics of porous media using charge method[J].Flow Measurement and Instrumentation,2011(3):201-207. |
| [10] | Z.Y.Zhou;H.P.Zhu;A.B.Yu .Discrete particle simulation of gas-solid flow in a blast furnace[J].Computers & Chemical Engineering: An International Journal of Computer Applications in Chemical Engineering,2008(8):1760-1772. |
| [11] | H.C. Chan;W.C. Huang;J.M. Leu;C.J. Lai .Macroscopic modeling of turbulent flow over a porous medium[J].International journal of heat and fluid flow,2007(5):1157-1166. |
| [12] | CHU Man-sheng,YANG Xue-feng,SHEN Feng-man,YAGI Jun-ichiro,NOGAMI Hiroshi.Numerical Simulation of Innovative Operation of Blast Furnace Based on Multi-Fluid Model[J].钢铁研究学报（英文版）,2006(06):8-15. |
| [13] | 李振鹏 .球床多孔介质通道单相流体流动特性研究[D].哈尔滨工程大学,2009. |
| [14] | 董辉,蔡九菊,王国胜,蔡漳平,王峰.球团竖炉结构和操作参数设计原则[J].钢铁研究学报,2007(07):14-18,35. |
| [15] | CAI Jiu-ju,DONG Hui,WANG Guo-sheng,YANG Jun.Gas Flow Distribution in Pelletizing Shaft Furnace[J].钢铁研究学报（英文版）,2006(06):16-20. |
| [16] | 董辉 .球团竖炉内气体流动规律的研究及其应用[D].东北大学,2006. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%