Study on Gas Field Optimization Distribution with Parameters Adjustment of the Air Duct Outlet for Mechanized Heading Face in Coal Mine

1st International Global on Renewable Energy and Development

Gong, Xiao-Yan^1 ; Zhang, Xin-Yi^1 ; Wu, Yue^1 ; Xia, Zhi-Xin^1 ; Li, Ying^1

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

710054, China^1

关键词: Adjusting parameters;    Distribution of gas;    Gas accumulation;    Gas dilution;    Gas distribution;    Optimization researches;    Parameters adjustment;    Research object;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012174/pdf
DOI  :  10.1088/1755-1315/100/1/012174

来源: IOP

【 摘 要 】

At present, as the increasingly drilling dimensions with cross-section expansion and distance prolong in coal mine, the situation of gas accumulation in mechanized heading face becomes severe. In this paper, optimization research of gas distribution was carried out by adjusting parameters of the air duct outlet, including angle, caliber and the front and rear distance of air duct outlet. Mechanized heading face of Ningtiaota coal mine was taken as the research object, simulated and analyzed the problems of original gas field, the reasonable parameters range of the air duct outlet was determined according to the allowable range of wind speed and the effect of gas dilution, the adjustment range of each parameter of the air duct outlet is preliminarily determined. Base on this, the distribution of gas field under different parameters adjustment of air duct outlet was simulated. The specific parameters under the different distance between the air duct outlet and the mechanized heading face were obtained, and a new method of optimizing the gas distribution by adjusting parameters of the air duct outlet was provided.