|本期目录/Table of Contents|

[1]罗文.煤矿连采工作面风流-粉尘运移规律数值模拟分析[J].中国安全生产科学技术,2025,21(9):100-106.[doi:10.11731/j.issn.1673-193x.2025.09.013]
　LUO Wen.Numerical simulation analysis of airflow-dust migration law in continuous mining face of coal mine[J].Journal of Safety Science and Technology,2025,21(9):100-106.[doi:10.11731/j.issn.1673-193x.2025.09.013]
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煤矿连采工作面风流-粉尘运移规律数值模拟分析

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年9期
页码:
100-106
栏目:
职业安全卫生管理与技术
出版日期:
2025-09-30

文章信息/Info

Title:
Numerical simulation analysis of airflow-dust migration law in continuous mining face of coal mine
文章编号:
1673-193X(2025)-09-0100-07
作者:
罗文
（国能神东煤炭集团有限责任公司，陕西 榆林 719000）
Author(s):
LUO Wen
（Shendong Coal Group Corporation Limited,Yulin Shaanxi 719000,China）
关键词:
连采工作面; 粉尘污染; 数值模拟; 风流-粉尘
Keywords:
continuous mining face;  dust pollution;  numerical simulation;  airflow-dust
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2025.09.013
文献标志码:
A
摘要:
为研究连采工作面的粉尘运移规律，弥补连采面风流场与粉尘场的交互作用机制及其时空分布特性研究不足，基于大柳塔煤矿运顺52508/52509连采工作面的现场布置情况布局，建立全尺寸、等比例的连采工作面的几何模型，对井下连采工作面的风流-粉尘运移规律进行数值模拟。研究结果表明：距掘进面30.0 m内，风流场处于紊乱状态分区，30.0~41.9 m为过渡状态分区，后达稳定状态；粉尘运移规律随时间改变，四臂锚杆机作业提升周围粉尘质量浓度，风流速度降低后粉尘沿右壁运移沉积；梭车呼吸带高度的粉尘平均质量浓度为190.37 mg/m3，梭车在距迎头23.5 m时，作业人员吸入的粉尘量少。研究结果为优化连采面通风除尘系统设计提供理论支撑，对提升高粉尘质量浓度作业环境下矿工职业健康防护水平具有实践指导价值。
Abstract:
In order to investigate the dust migration law in continuous mining face and address the research gap regarding the interaction mechanism between airflow fields and dust fields in continuous mining face along with their spatiotemporal distribution characteristics,a full-scale equal-scale geometric model was established based on the field layout of Yunshun 52508/52509 continuous mining face in the Daliuta Coal Mine.Numerical modeling was conducted to analyze the airflow-dust migration law in underground continuous mining faces.The results indicate that within 30.0 m from the heading face,the airflow field is in a disturbed state zone.The section between 30.0 m and 41.9 m is a transition state zone,after which the airflow reaches a stable state.Moreover,dust migration laws evolve over time,the operation of the four-boom bolter increases the dust concentration around it.Furthermore,after a decrease in airflow velocity,dust tends to migrate and deposit along the right wall.The average dust mass concentration at the breathing zone height near the shuttle car was 190.37 mg/m3.Importantly,the least amount of dust is inhaled by operators when the shuttle car is positioned approximately 23.5 m from the heading face.These findings provide theoretical support for optimizing the design of ventilation and dust removal systems in continuous mining faces,offering practical guidance for enhancing the level of occupational health protection for miners working in high-dust-concentration mining environments.

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备注/Memo

备注/Memo:
收稿日期： 2024-11-14
作者简介： 罗文，硕士，正高级工程师，主要研究方向为煤炭安全技术管理。
更新日期/Last Update: 2025-09-30