Assessing the efficiency of selective mining of structurally complex coal seams of the Elga deposit

DOI: 10.30686/1609-9192-2018-2-138-73-74

S.A. Ermakov. D.V. Khosoev

The article presents the results of studies aimed at the improvement of coal quality indices for bulk and selective mining of structurally complex coal seams of the Elga deposit with the application of KSM-2000R miners. The research has been performed with the use of MineFrame mining-geological information system. It has been found that in selective mining of structurally complex Н15 and Н15в coal seams with KSM-2000R miners, depending on the parameters of extracted layers, coal dilution decreases 1.8-6.5-fold, and coal ash is 1.3-2.5% lower as compared with bulk mining. In mining of structurally simple seams coal losses will sufficiently decrease, while in case of structurally complex coal seams with a great number of dirt bands the losses will insignificantly increase.

Key words: structurally complex coal seams, selective mining, coal losses, dirt bands, dilution, ash content, miners, bulk mining

Mining Industry Journal №2 (138) 2018, p.73