آخرین محصولات
Properties and Application of Backfill Materials in Coal Mines in China
Coal is the basic resource underpinning energy generation in China, however, constant, large-scale mining of coal results in many problems such as ecological destruction of mining areas. As a result, backfilling of solid waste underground is proposed to control strata and surface subsidence and to protect the environment. At present, …
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Open-Pit Coal Mines: Implications for Green Mining
2 High-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou 221116, China 3 Haerwusu Open-Pit Coal Mine, China Shenhua Energy Co. Ltd., Ordos 017100, China * Correspondence: [email protected] (W.Z.); imjiskani@hotmail (I.M.J.) Abstract: The particulate pollution in the open-pit coal …
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TBEA's South open pit coal mine with Eacon
Posted by Paul Moore on 14th March 2023. Following an on-site assessment by the National Intelligent Coal Mine Expert Panel, TBEA's South open pit coal mine, operated by its subsidiary Tianchi Energy, has …
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Web pillar stability in open-pit highwall mining
The LDC100 highwall miner (Han et al. 2014) is used to extract the coal left under the west highwall of the open-pit mine.This is an unmanned mining machine with a production capacity of 60 t/h and a suited coal-rock hardness factor of f ≤ 2, which is applicable for recovery from lignite open-pit mines.The recovery chamber has a …
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A research on dust suppression mechanism and application technology …
At present, the open-pit coal production of China ranks second in the world (Wang Citation 2014) and is developing toward a large-scale direction.It has been proven that large-scale open-pit coal fields are concentrated in Xinjiang, Inner Mongolia, and other ecologically vulnerable areas (Jiskani et al. Citation 2021).Green mining is the theme of coal mining …
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Monitoring Mining Activities Using Sentinel-1A InSAR Coherence in Open
Long-term continuous monitoring of the mining activities in open-pit coal mines is conducive to planning and management of the mining operations. Additionally, this faciliatates assessment on their environmental impact and supervises illegal mining behaviors. Interferometric Synthetic Aperture Radar (InSAR) technology can be …
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The Thin Coal Seam (TCS) Mining Technology for Open Pit …
Abstract Coal seam that is thinner than a certain value is defined as thin coal seams (TCS). It commonly occurs in China as it covers 84.2% of the mining area. This situation is …
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Concept and Practice of Open-pit Mining Area Restoration …
2.1 Open-pit mining area Open pit refers to the "open field" or "cavity" on the ground surface caused by mining activities, which is also called "mined-out zones". An open pit is a place with a complete production system for open-pit mining. A series of open trenches are excavated from the surface to each ore body in the open-pit mine site ...
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China's Coal Mine Accidents Rise Amid Push For Higher Production
In this photo released by China's Xinhua News Agency, rescuers work at the site of a collapsed open pit coal mine in Alxa League in northern China's Inner Mongolia Autonomous Region, Feb. 23, 2023.
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How Smart Mining in China Make the Coal Industry Safer
April 19, 2021 China tries to improve coal mine safety with 5G "smart" technology Day and night, trucks loaded with coal rumble down the dusty road in the desert county of Shenmu, north Shaanxi province, departing …
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Boosting mining safety
Until now. In China, Huawei has been working with partners to create integrated smart mining solutions at both open-pit and underground mines. The results are dramatic. At …
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'Smart mines' show coal deeply embedded in China's …
April 28, 2023 'Smart mines' show coal deeply embedded in China's future by Sébastien RICCI The Hongliulin pit in the coal-mining heartlands is a flagship facility of a drive aimed at...
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Watch: Chinese Coal Mine Suffers Catastrophic Collapse, Men …
Rescue efforts for 47 missing miners resumed in northern China's Inner Mongolia where a coal mine collapse killed at least 6 people, China's state broadcaster CCTV reported https://t.co ...
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The Thin Coal Seam (TCS) Mining Technology for Open Pit …
The Thin Coal Seam (TCS) Mining Technology for Open Pit Mines in China 1 Background of TCS Mining in China. There is no clear classification or …
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Green and climate-smart mining: A framework to analyze open-pit mines
To analyze the situation of open-pit mines in China, experts with relevant technical expertise participated during the research process. ... "Technology enablement and implementation ... Simulating the sustainable effect of green mining construction policies on coal mining industry of China. J. Clean. Prod., 226 (2019), pp. 392-406, …
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Engineering geology and mechanism of multiple landslides in
Landslides are a commonly occurring hazard in open-pit mines. Despite extensive research on this phenomenon, there is still a lack of understanding of the mechanism involved in landslides in open-pit mines in certain geologic settings. To reveal the mechanisms of multiple landslides in large open-pit mines, the geological …
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Evaluation of Ecological Stability in Semi-Arid Open-Pit Coal Mining
Open-pit coal mining plays an important role in supporting national economic development; however, it has caused ecological problems and even seriously impacted regional ecological stability. Given the importance of maintaining ecological stability in semi-arid coal mining areas, this study used a coupling coordination degree …
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Dust pollution in cold region Surface Mines and its prevention and
The study area, Haerwusu open pit coal mine, is one of China's largest open pit coal mines. Its geographical coordinates are longitude (111°13′18″～111°15′20″ E), and latitude (39 °43′34″～39° 45′02″ N). ... China University of Mining and Technology (SKLCRSM001). The authors also thank the Harwusu Mine for providing a ...
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Study on the Ground Movement in an Open-Pit Mine in the Case …
The combined surface and underground mining method is typically used in an open-pit mine for better production and profits. However, the improved scale of mining operations at the combined mining conditions results in even more intensive strata movement and massive ground damages. This paper assesses the progressive …
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(PDF) OPEN PIT COAL MINING WITH INTELLIGENT MINING
The longwall mining method was used and the whole seam thickness was mined by top coal caving method.LW130602 is mining 6# coal seam.The current workface is LW130602. LW130602 is mining 6# coal seam.
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Application of open-pit and underground mining technology for …
Given the conditions of residual coal from the boundary of a flat dipping open-pit mine, which uses strip areas mining and inner dumping with slope-covering, we propose an open-pit and underground integrated mining technology for residual coal of end slopes. ... Study on Semi-continuous Mining System of Surface Coal Mine and …
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Land Use Dynamic Evolution and Driving Factors of Typical Open-Pit Coal
Moreover, to ensure a wider representation of mining areas, we need to ensure that open-pit coal mines that cover large, medium and small areas are covered. Therefore, we selected 13 open-pit coal mines as typical study areas in mining areas with relatively complete information . By connecting the original registered nodes of each …
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Research on production capacity planning method of open-pit …
The production capacity planning results of each mining district in this plan are as follows: the production capacity of the 3rd mining district is 30–35 Mt/a; the …
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Green and climate-smart mining: A framework to analyze open-pit …
The case of Chinese open-pit mines is presented to analyze the framework from two main aspects: the current situation of GCSM indicators (reality) and their …
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The Thin Coal Seam (TCS) Mining Technology for Open Pit …
China University of Mining and Technology, Xuzhou 221116, Jiangsu, China e-mail: [email protected] ... Table 1 Statistics on the occurrence of TCS in China's large surface mines Open pit coal mines Thin coal seams no. Proportion in the total reserves 1 m 1–3.5 m 3.5–4 m Total Anjialing surface mine 4
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Research Progress of Soil and Vegetation Restoration Technology in Open
Research Progress of Soil and Vegetation Restoration Technology in Open-Pit Coal Mine: A Review. January 2023; Agriculture 13(2):226; ... More than 90% of the land destroyed by mining in China's.
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Haerwusu (China) | Mining Digital
Located in the Inner Mongolia Autonomous Region of China, the mine is spread across the middle of the Zhungeer Coalfield and is estimated to contain 1.7 billion tons of coal reserves. Owned and operated by Shenhua Group, the Haerwusu mine began production in October 2008, with development costs at approximately $1.1 billion. The …
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Ecological Restoration of Abandoned Mine Land in China
Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology (Beijing), Beijing 100083, China Abstract: Mining activities produced a lot of abandoned mine land.
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Research Status and Development Trend of Unmanned Driving Technology …
The development of intelligent mines includes unmanned coal mining technology, unmanned coal mine detection technology, and unmanned transportation technology. ... Qu, Y.; Fu, E. Development status and key technology of driverless and new energy trucks in open-pit coal mine in china. China Coal. 2021, 47, 45–50. …
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Study on Optimization of Coal Truck Flow in Open-Pit Mine
The production scale of the largest open-pit coal mine was 35 million tons/year, and over 20 large-scale open-pit coal mines' production was over 10 million tons/year. The total capacity of China's surface coal mines is about 950 million tons/year, accounting for about 25% of the total capacity of coal mines.
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