Experimental and numerical simulation study on forced ventilation and dust removal of coal mine heading surface
Haotian Zheng
Bingyou Jiang
Haoyu Wang
Yuannan Zheng
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
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.
机标关键词：simulationsurfacestudydustminecoalexperimentalforced
论文发表日期：2024-02-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：17( 204-220 )
英文信息