基于倒堆工艺的复合煤层回采对矿山生产能力影响

doi:10.11799/ce201407005

Abstract

Abstract:

Based on the essential features of dragline casting technology in HeiDaiGou open-pit coal mine and the status of high production effects on the extraction of 9th coal seam, the rehandling stripping by the single dragline was analyzed and the tracking mining scheme with variable width was proposed. The influences of both the mining approach on the production capacity were discussed, the former decrease the equipment efficiency and the production capacity decline to 24.46Mt/a, and the latter can achieve the capacity to 28Mt/a. In order to reach the capacity of 30Mt/a, the working length of the 9th coal seam should reduce 160m when the working line of 6th coal seam arriving at the end-slope.

Key words: Key words：open-pit coal mine, stripping technology, multiple coal seams, mining scheme

CLC Number:

TD 824

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URL: http://www.coale.com.cn/EN/10.11799/ce201407005

http://www.coale.com.cn/EN/Y2014/V46/I7/12

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Optimization study of mining scheme with multiple coal seams using cast stripping technology based on the output targets

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