Research and Analysis of Y-shaped Ventilation Gas Control Technology in High Gas Mines
Analyzing the calculation process of the air distribution in the main and auxiliary air intake tunnels,it is found that when the air leakage rate and gas emission rate in the goaf increase,the air intake in the main air intake tunnel,namely the transport tunnel,should be appropriately increased.At the same time,the Y-shaped ventilation system structure of the fully mechanized mining face is arranged,and the gas comprehensive treatment of the high gas mine is carried out by selecting the source separation and drainage technology.From the monitoring data of gas concentration in various regions,it can be seen that the Y-shaped ventilation method can enhance the gas extraction effect in high gas coal seams and eliminate the phenomenon of corner gas exceeding the limit.
Y-shaped ventilationleaving alleys along the empty spaceair distribution volumegas control
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