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Research Progress on Extraction Technology of Rare Earth Elementsfrom Coal Ash
Kuangchan zonghe liyong, 2023 This is an essay in the field of mining engineering. High-value utilization of rare earths in fly ash can effectively alleviate the environmental pollution caused by fly ash in my country, expand the supply chain of rare earth raw materials, and ensure ...
Zhijuan Gao, Xiangren Wang
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Research on unmanned driving system of mine-used truck
Gong-kuang zidonghua, 2021 With the deep exploration of large open-pit coal mines, the phenomenon of steep slopes and many bends has gradually increased. Moreover, the mine-used truck driving is difficult and there are hidden safety hazards.
YAN Ling1, HUANG Jiade2
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Synthetic faujasite based on coal by-products for the treatment of acid mine drainage (AMD). [PDF]
, 2008 Acid mine drainage (AMD) has long been a significant environmental problem associated to mining operations at the Parys Mountain copper-lead-zinc deposit of Anglesey (North Wales), a volcanogenic massive sulphide district of major metallogenic importance.
Rios, Carlos A. +3 more
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Computer-aided optimal open pit design with variable slope angles [PDF]
, 1999 The use of open pit mining has increased to extract large and low grade deposits with the growth in demand for raw materials, with the advances in mining technology and with the depletion of high grade and readily accessible orebodies.
Khalokakaie, Reza
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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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, 2022 In the process of open-pit coal mining, drainage is an important aspect causing the loss of groundwater resources. Taking Yuanbaoshan open-pit coal mine in Chifeng City, Inner Mongolia as the research object, this paper analyzes the control principle of ...
Yingjie, GUO +5 more
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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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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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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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