风速对骨料烘干煤粉燃烧器排放特性的影响

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程海鹰，李建新，张勇*，王京，胡志勇

内蒙古工业大学机械学院，内蒙古呼和浩特 010051

收稿日期:2018-09-26修回日期:2019-02-21出版日期:2019-10-22发布日期:2019-10-22
通讯作者:张勇

基金资助:国家自然科学基金项目

Effects of air velocity on emission characteristics of aggregate drying pulverized coal burner

Haiying CHENG, Jianxin LI, Yong ZHANG*, Jing WANG, Zhiyong HU

College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China

Received:2018-09-26Revised:2019-02-21Online:2019-10-22Published:2019-10-22

Supported by:National Natural Science Foundation of China

摘要/Abstract

摘要： 基于煤粉燃烧机理，结合骨料烘干工艺，建立了骨料烘干煤粉燃烧器内部场的控制模型，采用Fluent软件模拟煤粉燃烧器内部燃烧状况，考察了一、二、三次风的风速对煤粉燃烧器中心轴线处CO, CO2, NO和SO2浓度的影响。结果表明，在研究的风速范围内，一、二、三次风风速越大燃烧越充分，一、二、三次风风速越小，产生的NO越少；三次风风速为40 m/s时，SO2浓度最低；较合理的控制参数为一次风风速30~35 m/s，二次风风速45~50 m/s，三次风风速30~40 m/s。

引用本文

程海鹰李建新张勇王京胡志勇. 风速对骨料烘干煤粉燃烧器排放特性的影响[J]. 过程工程学报, 2019, 19(5): 1037-1046.
Haiying CHENG Jianxin LI Yong ZHANG Jing WANG Zhiyong HU. Effects of air velocity on emission characteristics of aggregate drying pulverized coal burner[J]. Chin. J. Process Eng., 2019, 19(5): 1037-1046.

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