Research on the Design and Application Effect of Underground Ventilation System in Coal Mines
In response to the problems of excessive air intake in the main shaft,insufficient air intake in the main ramp,air leakage in some areas,and significant wind resistance loss in the return air system of a certain coal mine ventilation system,measures were taken to add closed walls and operate air curtains in parallel,adjust the working conditions of the return air fan,optimize the ventilation passage,repair the sealing wall,and clean the main return air passage,which improved the efficiency of the ventilation system and ensured the underground air volume and quality.
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