Design and Benefit Analysis of the Matching Mining Scheme for Thin and Thick Advantages and Disadvantages Coal Seams
Aiming at the problems that the high-quality resources of the No.3 coal seam within the well field in Dayang Coal Mine are on the brink of depletion,and it is difficult to ensure the normal continuity and production connection of the mine before carrying out new coal seam resource development after all mining is completed,which affects the subsequent operation and sustainable development of the mine,etc,research and analysis are conducted on the No.3 and No.15 minable coal seams in Dayang Coal Mine.A matching mining scheme of"thin-thick coal seam,high-low sulfur content,high-low heat"is proposed,and through linear programming theory,the optimal mining ratio is calculated by using a joint solution method of binary linear equation group,and the 2:1 matching mining scheme for No.3 and No.15 coal seams is determined.After the scheme is determined,a new west return air shaft is constructed using the underground original production system,and transportation equipment is selected to achieve high heat and low sulfur content coal blending production,which has better economic value.While ensuring stable production of 1.80 Mt/a in the mine,the service length of the mine is extended.
coal seam matching miningmatching mining ratiodevelopment schemematching mining order
万方数据
维普
