东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (5): 691-695.DOI: -

• 论著 • 上一篇    下一篇

镁砂煅烧窑烟气脱硝SCR法的应用与流场分析

陈文仲;李宏侠;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家科技支撑计划项目(2006BAB12B04)

Kiln calcination of magnesium oxide using selective catalytic reduction

Chen, Wen-Zhong (1); Li, Hong-Xia (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Chen, W.-Z.
  • About author:-
  • Supported by:
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摘要： 介绍了菱镁石煅烧窑烟气的特点和危害以及SCR脱硝方法的原理与工艺流程,并且利用Fluent软件,采用标准湍流模型和多孔介质模型对SCR反应器的流场进行了数值模拟,此反应器是以某厂菱镁石高温煅烧窑烟气为对象,通过数值模拟来寻求优化设计.数值模拟结果表明,在SCR反应器内加装整流器对流场略有改善,且整流器格子大小对流场影响不大.模拟结果还得出导流板的最佳结构和位置,可以达到良好的脱硝效果.

关键词: 选择性催化还原法, 整流器, 导流板, 流场

Abstract: The characteristics and hazards of magnesite calcining of kiln flue gas are discussed, along with principles and processes of the SCR denitrification method. Flow field of the SCR reactor was simulated by Fluent software using a standard turbulence model and a porous medium model. This SCR reactor is designed for high temperature factory kiln calcination of magnesite, and its design was further optimized by numerical simulation. Simulation results showed that installing a fluid regulator in the SCR reactor slightly improved flow field, and size of the fluid regulator lattice had little effect on the flow field. Simulation also revealed the optimum structure and location of guide plates, thereby providing excellent denitrification results.

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