Research of Dust Field Optimization Distribution Based on Parameters Change of Air Duct Outlet in Fully Mechanized Excavation Face of Coal Mine

1st International Global on Renewable Energy and Development

Gong, Xiao-Yan^1 ; Xia, Zhi-Xin^1 ; Wu, Yue^1 ; Mo, Jin-Ming^1 ; Zhang, Xin-Yi^1

Xi'An University of Science and Technology, Xi'an, Shaanxi

710054, China^1

关键词: Degree of pollutions;    Dust accumulation;    Dust distribution;    Dust explosion;    Field optimization;    Fully-mechanized excavations;    Research object;    Simulation and optimization;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012171/pdf
DOI  :  10.1088/1755-1315/100/1/012171

来源: IOP

【 摘 要 】

Aiming at the problem of dust accumulation and pollution risk rising sharply in fully mechanized excavation face, which caused by the unreasonable air duct outlet airflow under the long distance driving, this paper proposes a new idea to optimize the distribution of dust by changing the angle, caliber and the front and rear distance of air duct outlet. Taking the fully mechanized excavation face of Ningtiaota coal mine which located in Shaanxi province as the research object, the numerical simulation scheme of dust field was established, the safety hazard of the distribution of original dust field was simulated and analyzed, the numerical simulation and optimization analysis of the dust distribution by changing the angle, caliber and the front and rear distance of air duct outlet was carried out, and the adjustment scheme of the optimized dust distribution was obtained, which provides a theoretical basis for reducing the probability of dust explosion and the degree of pollution.