Results 21 to 30 of about 2,118 (255)
矿业科学学报, 2022 In order to reduce the harm of dust dispersion in open-pit coal mine to the mining environment and the damage of personnel and equipment, this paper carried out the research on dust migration, distribution and treatment in open-pit coal mine by taking ...
Zhao Hongbao +5 more
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Meitan kexue jishu, 2023 The eastern grassland region is an important coal energy base in China, and coal development has made great contributions to the energy security supply of the northeast region and the economic development of China. In response to the problems of cold and
LI Quansheng, LI Lin
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Technological schemes of coal extraction in closed mines with the use of backhoes [PDF]
E3S Web of Conferences, 2021 At the present time on the fields of operating and closed-down mines there are sections of open-pit operations. However, the adopted technology does not meet environmental requirements, there are no scientific recommendations on the technology of open ...
Makarov Vladimir +2 more
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Meikuang Anquan, 2020 This paper first analyzes the existing problems of open-pit coal mine from the perspective of industry background, policy guidance, management and control concept, expounds the necessity of establishing intelligent mine, studies the definition, overall ...
HE Shuai, WANG Haiyang, ZHAO Li
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Discussion on the stability evaluation standard of a rock slope in a noncoal open-pit mine
工程科学学报, 2022 As an important way to obtain mineral resources, open-pit mining has accounted for about 77% of the total production of the mined iron ore, and about 52% of the total production of non-ferrous ore, indicating huge development potential.
Shun-chuan WU +5 more
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Study on direction of coal utilization in open-pit mine based on VIKOR method
Meikuang Anquan, 2021 During the production of open pit coal mine, coal seams with different natural index values of coal quality are often mined at the same time. In view of this phenomenon, the market competitiveness of enterprises can be improved through the balance of ...
YANG Fuqing, ZHOU Wei, LU Xiang, TIAN Ya, KONG Ruiqian, CAI Qingxiang
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Reasonable coal pillar design and remote control mining technology for highwall residual coal resources [PDF]
Royal Society Open Science, 2019 Highwall mining (HWM) technology is an efficient method for exploiting residual coal resources in Chinese open-pit coal mines. However, on-site personnel and equipment can be damaged by the instability of the highwall mining residual coal pillars and ...
Fangtian Wang, Cun Zhang
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Meitan kexue jishu, 2023 Due to the discontinuity of the stripping project in seasonal stripping open-pit coal mines, the untimely advance distance of the working slope is huge. In order to reduce the advance stripping and save the stripping distance, research was carried out on
Guangwei LIU +3 more
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Gong-kuang zidonghuaAt present, research on fault diagnosis of mine belt conveyors mainly focuses on three aspects: single-signal detection, traditional algorithm modeling, and multi-feature fusion.
LI Zhongfei +6 more
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Mathematics, 2022 The stability of an open-pit slope is an extremely important factor related to the safe production of an open-pit mine. It is the first safety technical problem encountered and should be solved in the process of mine design and production.
Xiaoyan Du, Jinfei Chai
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