Technical Research on Optimizing Mining Technology to Improve Lump Coal Ratio of Anthracite Coal
Based on the decisive influence of mining technology on the formation of lump coal,according to the mining conditions of 2206#working face of Tunlan Coal Mine in Shanxi Province,by changing the rotation direction of the shearer roller and the coal cutting mode of the shearer,reduce the support strength of the hydraulic support,implementing pre splitting short delay blasting,and to further improve the anthracite lump coal rate.The results show that the application of the above mining technology can significantly improve the production and extraction rate of lump coal,and has good technical and economic value.
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维普
