2022年3月10日 This study will ascertain the eco-efficiency level in a coal mining area's circular economy industrial chain.
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2023年10月20日 Therefore, this paper comprehensively assesses the current status of CMM emissions and control benefits through the amount of emission, extraction, and utilization.
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2020年7月27日 Nevertheless, there are factors that tend to favour continued investment in coal assets, including the security of supply in regions with abundant coal resources, the desire to
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2023年1月1日 Substantial technological advancement is achieved over the last decade to make the operations safe and efficient.
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2021年9月4日 Intelligent and efficient coal mining. The construction of intelligent, high-yield, and high-efficiency mines is the key for coal companies to improve their energy efficiency and
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2024年2月27日 Development of coal geological information technologies in China.
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2024年4月15日 The mass exploitation of coal deposits is a typical coal mining method with increased safety, conservation and productivity. The current transitional mechanization-based coal excavation may be unsuitable to
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2023年9月1日 It is found that early action to reduce both emissions of carbon dioxide and methane simultaneously leads to the best climate outcomes over all timescales, and it is
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2025 China International Coal Mining Exhibition will be held from 7-9, August , 2025 in Beijing. At the exhibition, it is expected to have more than 650 exhibitors from about 23 countries and regions around the world, with the exhibition area
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2023年6月12日 Learn about surface and underground mining methods, safety concerns, and future trends. Discover the role of coal mining in the country's economy. Explore the techniques, environmental impact, and economic
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2024年2月14日 In summary, this study on coal cuttability overturns traditional beliefs about coal hardness and its effects on mining efficiency. The link between coal’s breakout angle, UCS and pick consumption provides critical insights for improved mining practices.
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management and optimization of the entire coal mining process can be achieved, thereby improving coal mining efficiency, reducing safety risks, and achieving safe and efficient coal mine production. 3.1. Risk identification and early warning Risk identification and early warning of difficult-to-mine coal seams is a crucial part of coal mine
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Purpose: The purpose of this study is to propose an efficient coal workers' pneumoconiosis (CWP) clinical prediction system and put it into clinical use for clinical diagnosis of pneumoconiosis. Methods: Patients with CWP and dust-exposed workers who were enrolled from August 2021 to December 2021 were included in this study. Firstly, we chose the embedded
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2024年9月27日 Michelin Debuts Mining Industry’s First Energy-Efficient Tire, the Michelin XDR 4 SPEED ENERGY™ September 27, 2024 - Michelin is introducing at MINExpo 24 the Michelin XDR 4 SPEED ENERGY™, the mining industry’s first-ever energy efficient tire that is designed to reduce a mining vehicle’s fuel consumption and lower CO2 emissions through an
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2020年7月5日 As the poorly-utilized byproduct of coal mining, coal mine methane (CMM) has been widely recognized as the important greenhouse gas source [[1] ... which can realize the efficient and clean utilization of LC-CMM. The high CH 4 conversion and CO selectivity can be achieved by the anodic internal reforming.
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2024年10月10日 Coal mining generates coal gangue (CG), whose poses considerable ecological challenges. Therefore, using CG in the preparation of electromagnetic wave (EMW)-absorbing materials has emerged as a promising approach for its high-value utilization. In this study, CG was dried and then ball milled. The microscopic morphology, element composition,
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2024年7月4日 Discover the reliable coal hauling services provided by Karunia Wahana Nusa in Balikpapan. Contact us today for efficient solutions. # ... Karunia Wahana Nusa, coal hauling services,
More2023年8月30日 AI can automate and optimize various processes in the coal industry, making them more efficient and ... conditions for coal miners and reduce workplace accidents in the coal mining sector?
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2014年10月10日 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years. At present, the output of a FMM face has reached 10-million tons with Chinese-made equipment. In this study, the new developments in FMM technology and equipment in Chinese coal mines during past decades are introduced. The automatic FMM
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Mining coal. Coal miners use large machines to remove coal from the earth. Many U.S. coal deposits, called coal beds or seams, are near the earth's surface, but others are deep underground.Modern mining methods allow U.S. coal miners to easily reach most of the nation's coal reserves and to produce about three times more coal in one hour than in 1978.
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2024年2月21日 Coal is a prominent energy resource for several countries. Of late, exploring the automatic management and control of coal mining has been a significant task.
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2021年4月1日 Improved standards of living, access to electricity, more efficient stoves, education, and government regulations prohibiting the use of local mineralized coal have resulted in the reduction of severe health problems caused by residential coal combustion, such as coal in Guizhou province which boasts an astounding 35,000 ppm (parts per million) of arsenic, a
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2023年3月17日 Coal mining boomed during the British Industrial Revolution as it provided fuel for steam engines of all kinds in ... and so when the invention was made more efficient and adapted for other uses by such inventors as James Watt (1736-1819) and Matthew Boulton (1728-1809), so the demand for coal grew. Steam engines were used to ...
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2019年10月1日 Wang et al. (2019) used a stochastic frontier analysis (SFA) based on Translog production function assumptions to assess the eco-efficiencies of coal and 28 coal mining cities in China, and found that eastern coal mining cities had the highest ecological efficiencies, western cities had the greatest potential, and northeast coal mining cities had the lowest
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2011年11月1日 It is estimated that about two-thirds of global coal is used for power generation and that, in the next 20 years, over 70% of the demand for coal will come from China and India.
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2024年10月11日 Coal mining - Extraction, Processing, Pollution: In geologic terms, coal is a sedimentary rock containing a mixture of constituents, mostly of vegetal origin. Vegetal matter is composed mainly of carbon, hydrogen, oxygen, nitrogen, sulfur, and some inorganic mineral elements. When this material decays under water, in the absence of oxygen, the carbon
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2024年10月11日 Coal mining - Prospecting, Exploration, Mining: The fundamental objective of coal prospecting is to discover coal resources through a search. In areas where coal mining has not been previously practiced, the search process should result in obtaining coal samples that give reasonable evidence of the existence of a coal seam. Once a seam has been discovered,
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2024年8月1日 In the coal mining, the process of querying and retrieving safety information for dispatchers often consumes considerable time, leading to delays in response to incidents. This paper proposes efficient safety information query system for coal mine safety information.
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