|本期目录/Table of Contents|

[1]冯恒原,李治刚,朱芷涵,等.高瓦斯矿井综掘工作面粉尘运移规律及富集特征研究*[J].中国安全生产科学技术,2023,19(10):59-65.[doi:10.11731/j.issn.1673-193x.2023.10.008]
 FENG Hengyuan,LI Zhigang,ZHU Zhihan,et al.Study on dust migration law and enrichment characteristics of fully-mechanized heading face in high gas mines[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(10):59-65.[doi:10.11731/j.issn.1673-193x.2023.10.008]
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高瓦斯矿井综掘工作面粉尘运移规律及富集特征研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年10期
页码:
59-65
栏目:
职业安全卫生管理与技术
出版日期:
2023-10-31

文章信息/Info

Title:
Study on dust migration law and enrichment characteristics of fully-mechanized heading face in high gas mines
文章编号:
1673-193X(2023)-10-0059-07
作者:
冯恒原李治刚朱芷涵栗海滔张洋郭红光陈曦李雨成葛少成
(1.太原理工大学 安全与应急管理工程学院,山西 太原 030000;
2.晋能控股装备制造集团长平公司,山西 晋城 048000)
Author(s):
FENG Hengyuan LI Zhigang ZHU Zhihan LI Haitao ZHANG Yang GUO Hongguang CHEN Xi LI Yucheng GE Shaocheng
(1.College of Safety and Emergency Management Engineering,Taiyuan University of Technology,Taiyuan Shanxi 030000,China;
2.Changping Company,Jinneng Holding Equipment Manufacturing Group,Jincheng Shanxi 048000,China)
关键词:
综掘工作面数值模拟压入式通风粉尘运移规律粉尘粒度富集特征
Keywords:
fully-mechanized heading face numerical simulation forced ventilation dust migration law dust size enrichment characteristic
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2023.10.008
文献标志码:
A
摘要:
为解决高瓦斯矿井综掘工作面加大局部风量导致的粉尘污染严重问题,以长平矿为研究对象,采用现场测试、理论分析和数值模拟等方法,研究该矿井综掘工作面粉尘运移规律及不同粒径粉尘富集特征。研究结果表明:在增加局部通风量的条件下,掘进机附近共形成3处涡流区;受涡流区的影响,掘进巷道内共形成3个粉尘富集区域,其中,粉尘质量浓度最大值出现在富集区Ⅰ区,达到868 mg/m3。局部风量的增大对粉尘整体向后运移的能力明显加强,粉尘运移路径进一步延长,且距掘进面15 m后巷道呼吸性粉尘不断富集。涡流区的粉尘富集特征分析中,涡流Ⅰ和涡流Ⅱ区的喷雾技术应以超细水雾的形式进行降尘,涡流Ⅲ区应以接近中颗粒粉尘粒径的细水雾来进行降尘。研究结果可为高瓦斯矿井综掘工作面粉尘治理提供参考。
Abstract:
To solve the problem of serious dust pollution caused by increasing the local air volume in the fully-mechanized heading face of high gas mines,the Changping Coal Mine was taken as the research case,and the dust migration law and enrichment characteristics of dust with different particle sizes in the fully-mechanized heading face of this mine were studied using the method of field test,theoretical analysis and numerical simulation.The results show that under the condition of increasing local ventilation volume,three vortex zones are formed near the digging machine.Under the influence of vortex zones,three dust enrichment areas are formed in the tunneling roadway,among which,the maximum dust mass concentration appears in the enrichment area Ⅰ,reaching 868 mg/m3.The increase of local air volume significantly strengthens the ability of dust migration backward,the dust migration path is further extended,and the respirable dust in the roadway is continuously enriched after 15 m of the excavation face.In the dust enrichment characteristics analysis of the vortex zone,the spraying technology in the vortex zone Ⅰ and vortex zone Ⅱ should be in the form of ultra-fine water mist for dust reduction,and the vortex zone Ⅲ should be in the form of fine water mist close to the particle size of medium particle dust for dust reduction.The research results can provide reference for dust control in the fully-mechanized heading face of high gas mines.

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备注/Memo

备注/Memo:
收稿日期: 2023-05-08
* 基金项目: 国家自然科学基金项目(52174195,51704145);山西省自然科学基金项目(20210302123122)
作者简介: 冯恒原,硕士研究生,主要研究方向为矿井粉尘治理。
通信作者: 李治刚,博士,讲师,主要研究方向为矿山灾害防治。
更新日期/Last Update: 2023-11-06