CHINA MINE ENGINEERING

In order to improve the reliability of power supply system of local fan in underground driving face, taking the power supply of local fan in 2201 and 2203 driving roadway of a mine in Shanxi Province as the research object, through improving the power supply of underground local fan, the power supply reliability of local fan is effectively improved, after the completion of the transformation, there was no unplanned shutdown accident of the local fan, which significantly improved the air supply quality of the heading face. The research results can provide reference for other mine local fan power supply transformation.