运输巷仿真模型建立及多断面喷雾降尘技术

doi:10.16265/j.cnki.issn1003-3033.2025.09.1632

中国安全科学学报 ›› 2025, Vol. 35 ›› Issue (9): 96-105.doi: 10.16265/j.cnki.issn1003-3033.2025.09.1632

运输巷仿真模型建立及多断面喷雾降尘技术

荆德吉¹^,²^,³(), 阚琦笙¹^,²^,³, 刘鸿威¹^,²^,³, 戴明颖¹^,²^,⁴^,^**(), 刘绍航¹^,²^,³, 刘阔¹^,²^,³

¹ 辽宁工程技术大学安全科学与工程学院,辽宁阜新 123000
² 矿山热动力灾害与防治教育部重点实验室,辽宁阜新 123000
³ 辽宁工程技术大学鄂尔多斯研究院,内蒙古鄂尔多斯 017010
⁴ 航天信息软件技术有限公司,北京 100089

收稿日期:2025-04-25 修回日期:2025-07-08 出版日期:2025-09-28
通信作者:
**戴明颖(1985—),女,辽宁鞍山人,博士研究生,主要研究方向为职业卫生工程及职业健康管理等。E-mail:1900833116@qq.com。
作者简介:
荆德吉 (1984—),男,辽宁抚顺人,博士,教授,博士生导师,主要从事矿井通风与粉尘防治理论及技术研究。E-mail: jingdeji@lntu.edu.cn。
基金资助:
国家自然科学基金资助(52204216); 国家自然基金面上项目资助(52474229); 国家自然科学基金青年基金资助(51704146)

Simulation model of transportation roadway and multi-section spray dust reduction technology

JING Deji¹^,²^,³(), KAN Qisheng¹^,²^,³, LIU Hongwei¹^,²^,³, DAI Mingying¹^,²^,⁴^,^**(), LIU Shaohang¹^,²^,³, LIU Kuo¹^,²^,³

¹ College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China
² Key Laboratory of Mine Thermo-motive Disaster and Control of Ministry of Education, Fuxin Liaoning 123000, China
³ Ordos Research Institute of Liaoning Technical University, Ordos Inner Mongolia 017010, China
⁴ Aerospace Information Software Technology Co., Ltd., Beijing, 100089, China

Received:2025-04-25 Revised:2025-07-08 Published:2025-09-28

摘要/Abstract

摘要：

为了治理煤矿运输巷粉尘污染问题,利用数值仿真软件,按照1∶1的比例建立棋盘井煤矿运输巷北大巷几何模型。首先,基于标准k-ε湍流模型和粒子追踪模型,展开运输巷风流-粉尘耦合特征研究,并根据其特征提出同时治理转载点和运输巷的多断面喷雾降尘技术;然后,通过数值仿真与试验相结合的方法,验证新型降尘技术的有效性;最后,在棋盘井煤矿运输巷北大巷开展现场应用,验证该技术的实用性及高降尘特性。结果表明:运输巷内风流分布受胶带运转速度及牵引力影响产生诱导风流,整体平均风流速度约为0.6 m/s,而粉尘粒子受巷道风流裹挟扩散,粒径为25 μm以下的粉尘悬浮在人行道处,而粒径为25 μm以上的粉尘沉积在胶带表面和巷道底板上;新降尘技术可实现对转载点的完美覆盖,且主巷道内形成1道超音速雾幕,拦截并捕集转载点逃逸的粉尘。超音速喷雾的雾幕范围大,抗风性强,持续降尘效果显著。经棋盘井煤矿运输巷北大巷现场应用,全尘和呼尘的最高降尘效率分别达到80.12%和83.15%,验证了文中所提降尘技术的有效性。

关键词: 运输巷, 转载点, 多断面, 喷雾降尘, 粉尘质量浓度

Abstract:

In order to control the dust pollution problem of coal mine transportation roadway, the geometric model of Qipanjing coal mine transportation north roadway was established according to the ratio of 1∶1 by using numerical simulation software. Firstly, based on the standard k-ε turbulence model and particle tracking model, the airflow-dust coupling characteristics of the transportation roadway were studied, and a multi-section spray dust reduction technology for simultaneously controlling the transfer point and the transportation roadway was proposed according to its characteristics. Then, the effectiveness of the new dust reduction technology was verified by the combination of numerical simulation and experiment. Finally, the field application was carried out in the north roadway of the transport roadway in Qipanjing Coal Mine to verify the practicability and high dust reduction characteristics of the technology. The results show that the airflow distribution in the transportation roadway is affected by the running speed of the belt and the traction force to produce the induced airflow. The overall average airflow velocity is about 0.6 m/s, and the dust particles are dispersed by the airflow of the roadway. The dust with a particle size of less than 25 μm is suspended at the sidewalk, while the dust with a particle size of more than 25 μm is deposited on the surface of the belt and the floor of the roadway. The new dust reduction technology realizes the perfect coverage of the transfer point, and a supersonic fog curtain is formed in the main roadway to intercept and capture the dust that escaped from the transfer point. The test results show that the supersonic spray has a large range of fog curtain, strong wind resistance and significant continuous dust reduction effect. Through the field application of the north roadway of the transport roadway in Qipanjing Coal Mine, the highest dust reduction efficiency of total dust and respirable dust reached 80.12% and 83.15% respectively.

Key words: transportation roadway, transfer point, multi-section, spray dust suppression, dust mass concentration

中图分类号:

X964工业防尘

荆德吉, 阚琦笙, 刘鸿威, 戴明颖, 刘绍航, 刘阔. 运输巷仿真模型建立及多断面喷雾降尘技术[J]. 中国安全科学学报, 2025, 35(9): 96-105.

JING Deji, KAN Qisheng, LIU Hongwei, DAI Mingying, LIU Shaohang, LIU Kuo. Simulation model of transportation roadway and multi-section spray dust reduction technology[J]. China Safety Science Journal, 2025, 35(9): 96-105.

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u/ (m·s^-1)	X轴距离/m
u/ (m·s^-1)	5	15	25	35	45
粗网格	1.25	1.08	1.15	1.21	0.64
中网格	1.21	1.02	1.12	1.19	0.57
细网格	1.10	0.85	0.97	0.97	0.56
实际	0.98	0.82	0.87	0.85	0.49

项目	参数	设置
k-ε湍流模型	ρ/(kg·m^-3)	1.25
	μ/(Pa·s)	1.79×10^-5
	扩散系数/(m²·s^-1)	2.00×10^-5
	主巷入口速度/(m·s^-1)	0.30
	联巷入口速度/(m·s^-1)	0.25
	主巷出口压力/Pa	0
	胶带速度/(m·s^-1)	3.5
	粗糙度参数	0.26
粒子追踪模型	ρ_p/(kg·m^-3)	1.63×10^-3
	v/(m·s^-1)	4.0
	平均粒子质量/kg	5×10^-12
	粒子质量标准差/kg	1×10^-11
	曳力	Stokes
	升力	Saffman
	相互作用力	Coulomb

测点位置	开启前粉尘质量浓度/(mg·m^-3)		开启后粉尘质量浓度/(mg·m^-3)		降尘效率/%
测点位置	全尘	呼尘	全尘	呼尘	全尘	呼尘
A	64.29	24.43	15.01	6.95	76.65	71.55
B	70.83	26.18	14.23	5.17	79.91	80.25
C	58.16	20.37	12.65	4.86	78.24	76.14
D	49.58	19.52	10.81	4.15	78.19	78.73
E	43.71	18.05	8.69	3.04	80.12	83.15

运输巷仿真模型建立及多断面喷雾降尘技术

Simulation model of transportation roadway and multi-section spray dust reduction technology

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