陕西煤炭2025，Vol.44Issue(3)：62-67,139,7.DOI:10.20120/j.cnki.issn.1671-749x.2025.0311
基于数值模拟的强制通风条件下掘进工作面气流与粉尘规律研究
Airflow and dust patterns in excavation face under forced ventilation conditions based on numerical simulation
王东伟1
作者信息
- 1. 国家能源集团煤焦化有限责任公司,内蒙古 乌海 016000
- 折叠
摘要
Abstract
This study explores the distribution characteristics of different particle sizes of dust under forced ventilation condi-tions in excavation working faces through CFD simulation,and the influence of changes in air supply speed on dust distribu-tion.Research has found that the total airflow intensity decreases with increasing distance from the excavation face,and the airflow intensity on the return airflow side is higher than that on the inlet side.The distribution of dust is directly affected by the intensity of the airflow field,and the larger the particle size,the more difficult it is for the dust to reach the side of the air duct,especially for medium and fine particle dust with a higher content on the coal wall side.In addition,ultrafine particle dust can be suspended for a long time in the entire roadway,but slowly settles as the airflow gradually weakens.The results indicate that by optimizing the selection and location of dust removal equipment,combined with appropriate adjustment of air supply speed,mine dust can be effectively controlled,especially for the control of ultrafine particle dust.Suggestions for fur-ther research on the dust distribution in the main dust producing areas of the mine are proposed.关键词
粉尘/粉尘分布/粒子大小/CFD模拟Key words
dust/dust distribution/particle size/CFD simulation分类
矿业与冶金引用本文复制引用
王东伟..基于数值模拟的强制通风条件下掘进工作面气流与粉尘规律研究[J].陕西煤炭,2025,44(3):62-67,139,7.
