Title:
MINING METHOD FOR UNDERGROUND BAUXITE LARGE-DIP-ANGLE MEDIUM-THICK ORE BED DUAL-MINING MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/066529
Kind Code:
A1
Abstract:
A mining method for an underground bauxite large-dip-angle medium-thick ore bed dual-mining machine. The method specifically comprises: when laying out a working face, leaving a high-grade mineral aggregate layer in the middle of the height direction of a mining wall, wherein medium-grade mineral aggregate layers are present both above and below the high-grade mineral aggregate layer of the mining wall; performing mixed mining work of full-seam mining by using the high-grade mineral aggregate layer and the medium-grade mineral aggregate layers as target mineral aggregate layers, wherein a top plate and a bottom plate are respectively formed after the medium-grade mineral aggregate layers above and below the high-grade mineral aggregate layer are mined; after the top plate is formed, performing random support on the exposed top plate by pulling a support to the side of the mining wall; and simultaneously providing two mining machines on the same working face, so that the two mining machines respectively perform oblique cutting feed from the middle and the high end of the working face, and respectively perform downward simultaneous mining on the low end and the middle of the working face, wherein the two mining machines are arranged in parallel. The mining efficiency can be markedly improved, and the mining cost can be reduced.
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Inventors:
ZHANG LIQIANG (CN)
ZHOU CHANGFEI (CN)
LI QINGLIANG (CN)
SONG XIAOHUA (CN)
HU JING (CN)
WANG ZHENQIAN (CN)
HU TAO (CN)
DONG CHAO (CN)
GU ENYANG (CN)
YANG GUICHENG (CN)
GUO DAI (CN)
ZHOU CHANGFEI (CN)
LI QINGLIANG (CN)
SONG XIAOHUA (CN)
HU JING (CN)
WANG ZHENQIAN (CN)
HU TAO (CN)
DONG CHAO (CN)
GU ENYANG (CN)
YANG GUICHENG (CN)
GUO DAI (CN)
Application Number:
PCT/CN2023/102558
Publication Date:
April 04, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
SHANGHAI TIANDI MINING EQUIPMENT TECH CO LTD (CN)
International Classes:
E21C41/22
Foreign References:
| CN115478858A | 2022-12-16 | |||
| CN111622762A | 2020-09-04 | |||
| CN108716400A | 2018-10-30 | |||
| CN109403978A | 2019-03-01 | |||
| CN108843323A | 2018-11-20 | |||
| PL271506A1 | 1988-12-22 |
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