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Optimization of Duan's Mine Transportation System-Safety and Benefit Double Harvest

(Summary description)The three main roads of Duan's mine track, belt and return air are developed along the coal seam floor, and the concentrated return air tunnel is driven along the coal roof. This results in large height differences, large slopes, and coal transportation difficulties in the south and north wings and the centralized return air tunnel. Two belts and two coal sluices need to be installed to drive two inclined rock roads with a length of about 50 meters, which requires a large amount of labor and capital, and the excavation of rock inclined roads is time-consuming and laborious, and there is a large safety hazard, which severely restricts mining. succeed.

Optimization of Duan's Mine Transportation System-Safety and Benefit Double Harvest

(Summary description)The three main roads of Duan's mine track, belt and return air are developed along the coal seam floor, and the concentrated return air tunnel is driven along the coal roof. This results in large height differences, large slopes, and coal transportation difficulties in the south and north wings and the centralized return air tunnel. Two belts and two coal sluices need to be installed to drive two inclined rock roads with a length of about 50 meters, which requires a large amount of labor and capital, and the excavation of rock inclined roads is time-consuming and laborious, and there is a large safety hazard, which severely restricts mining. succeed.

Information

  The three main roads of Duan's mine track, belt and return air are developed along the coal seam floor, and the concentrated return air tunnel is driven along the coal roof. This results in large height differences, large slopes, and coal transportation difficulties in the south and north wings and the centralized return air tunnel. Two belts and two coal sluices need to be installed to drive two inclined rock roads with a length of about 50 meters, which requires a large amount of labor and capital, and the excavation of rock inclined roads is time-consuming and laborious, and there is a large safety hazard, which severely restricts mining. succeed. 

  In order to completely solve this problem, the leaders of Duanshi Mine held several special meetings based on the actual situation, and discussed repeatedly with relevant technical personnel, and decided to use raise rigs in the drilling site on the east side of the 3203 belt 62m away from the centralized return air tunnel ( At the top of the main roadway with belt), 4 coal pass holes were constructed to transport coal during the 3203 and 3204 belt tunneling periods and the 3203 fully mechanized mining face.

             

  It is understood that this innovation can further optimize the layout of the roadway and effectively avoid the deformation of the roadway caused by the stress concentration in the mine. At the same time, it can reduce the length of rock tunnel excavation, save costs, produce better economic benefits, and lay a solid foundation for the replacement of Duan's mine.

 

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