Experimental and numerical simulation study on forced ventilation and dust removal of coal mine heading surface

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外文摘要：In order to study the problems of unreasonable airflow distribution and serious dust pollution in a heading surface,an experimental platform for forced ventilation and dust removal was built based on the similar principles.Through the similar experiment and numerical simulation,the distribution of airflow field in the roadway and the spatial and temporal evolu-tion of dust pollution under the conditions of forced ventilation were determined.The airflow field in the roadway can be divided into three zones:jet zone,vortex zone and reflux zone.The dust concentration gradually decreases from the head to the rear of the roadway.Under the forced ventilation conditions,there is a unilateral accumulation of dust,with higher dust concentrations away from the ducts.The position of the equipment has an interception effect on the dust.The maximum error between the test value and the simulation result is 12.9％,which verifies the accuracy of the experimental results.The research results can provide theoretical guidance for the application of dust removal technology in coal mine.

外文关键词：

Heading surfaceForced ventilationAirflow fieldDust pollution

作者：

Haotian Zheng、Bingyou Jiang、Haoyu Wang、Yuannan Zheng

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作者单位：

Key Laboratory of Industrial Dust Prevention and Control& Occupational Health and Safety,Ministry of Education,Anhui University of Science and Technology,Huainan 232001,China

Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining,Anhui University of Science and Technology,Huainan 232001,China

School of Safety Science and Engineering,Anhui University of Science and Technology,Huainan 232001,China

基金：

National Key R&D Program of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaAnhui Provincial Natural science FoundationUniversity Distinguished Youth Foundation of Anhui ProvinceAnhui Province University Discipline(Major)Top Talent Academic Support ProjectFunding for academic research activities of reserve candidates for academic and technological leaders in Anhui ProvinceIndependent Research fund of Key Laboratory of Industrial Dust Prevention and Control & Occupational Health and Safety,MinisGraduate Innovation Fund of Anhui University of Science and Technology

项目编号：

2022YFC25032002022YFC250320152074012522041912308085J192022AH020057gxbjZD20220172022H301EK202110042023CX1003

出版年：

2024

DOI：

10.1007/s40789-024-00667-z

国际煤炭科学技术学报(英文)

CSTPCD

ISSN：2095-8293

年,卷(期)：2024.11(1)