关键词: 综掘工作面, 湿式振弦除尘风机, 粉尘运移规律, 单一压入式通风, 压、抽组合式通风

Abstract: In this paper, the 2410 comprehensive excavation face of Yuhua Coal Mine in Tongchuan City, Shaanxi Province, is taken as the research object. Through field measurement and simulation, the distribution rule of air flow field and dust field under the single pressure type, pressure type and combination type ventilation and the impact on dust removal efficiency under different working conditions are studied. Firstly, the data collection work is carried out on the comprehensive excavation working face, then the three-dimensional geometric model is established according to the actual situation, and the wind flow field and dust field under different working conditions are simulated and analyzed by FLUENT software, and the comparison of the measured data is verified. The results of simulation and measurement show that the dust concentration of the head-on and roadway is significantly reduced by using the combined ventilation mode of pressure and extraction, because of the good dust removal effect of the wet vibrating string dust removal fan, and the dust concentration of the single pressure ventilation mode is reduced by more than 60%. In addition, the reasonable interval value of the distance between the middle pressure tuyere and the head face of the combined ventilation is studied.