Opportunities, challenges and modification methods of coal
2024/9/7 However, a substantial amount of coal gangue was generated and discharged during the coal mining, washing and processing processes. Coal gangue, a black-gray rock احصل على السعر
Comprehensive utilization and environmental risks of coal gangue:
2019/12/1 The production process of coal gangue products is more complicated than ordinary similar products (Guo et al., 2016). Concretely, for example, coal gangue must be احصل على السعر
Coal Gangue: Composition, Processing, Use And
2024/1/18 In the brick-making process, coal gangue can use the heat dissipation characteristics to make adobe- and briquette-free bricks. Coal gangue production of cement Cement production from coal gangue requires “two احصل على السعر
Characteristics of Coal Gangue and Present Situation and Prospect
2024/6/4 Coal gangue is a kind of solid waste produced in the process of coal production and processing, which accounts for about 10–20% of coal output on average (Liangji et al. احصل على السعر
Representative coal gangue in China: Physical and chemical
2024/2/1 CG is a kind of black gray shale rock produced in the process of coal production. China is the world's largest coal producer (Munir et al., 2020) ... which comes from a coal احصل على السعر
A review of intelligent coal gangue separation
2023/11/6 In coal mining, the automatic removal of coal gangue is an important link in modern coal production and processing. The majority of coal mining and production in China has been screened, and large gangue sizes احصل على السعر
Comprehensive utilization and environmental risks of coal gangue: A ...
2019/12/1 The production of coal gangue will rise considerably as the rapid increase of energy demand, indicating a considerable opportunity for the use of coal gangue. ... which is احصل على السعر
Lightweight detection model for coal gangue identification based
2024/7/23 Coal is the cornerstone of China’s energy sources and the most economically and low-risk energy source that can be used efficiently. For a long time in the future, China will احصل على السعر
Coal gangue detection and recognition algorithm based on
2021/9/8 Xiangang et al. proposed a coal gangue recognition method driven by deep learning that is based on the differences in the surface characteristics of coal gangue; they احصل على السعر
A review of coal gangue identification research—application to
2022/12/26 Top coal caving is a process for the rational extraction of large amounts of coal resources. However, this process readily causes release of excessive amounts of gangue احصل على السعر
Environmental hazards and comprehensive utilization of solid waste coal
2024/4/1 Coal gangue pollution components can be released into the soil surface water not only by direct weathering of the coal gangue, but also through the process of “coal-water” احصل على السعر
Research on Recognition of Coal and Gangue Based on Laser
2023/11/11 Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energy احصل على السعر
Characterization studies on coal gangue for sustainable geotechnics
2020/2/5 Global rise in greenhouse gas emissions (GHG) is triggered mainly due to the consumption of fossil fuels for power generation and domestic usage. Among the fossil fuels, احصل على السعر
Utilization of coal gangue for the production of brick
2016/6/8 Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, احصل على السعر
Comprehensive utilization and environmental risks of coal gangue
2019/12/1 Coal gangue (CG) is an associated product in the process of coal mining and washing, accounting for approximately 10-15% of the raw coal production, and in some small احصل على السعر
Underground Disposal of Coal Gangue Backfill in China - MDPI
2022/11/25 China’s total coal production in 2021 exceeded 4.13 billion tons, 52% of the world’s total. Coal gangue, a solid waste of coal mining accounts for 15–20% of coal احصل على السعر
Sustainable and clean utilization of coal gangue: activation
of coal processing and utilization. Due to the accumulation of a large amount of coal gangue and the failure to fully utilize or dispose it, it caused problems on the environment in the air احصل على السعر
Improvement of strength and microstructure of low-carbon
2024/9/20 As early as 2020, China's annual coal production reached 38 billion tons [2], accounting for about 47 percent of global production [3]. For every ton of coal produced, about احصل على السعر
Comprehensive utilization and environmental risks of coal gangue
2019/12/1 Coal gangue (CG) is an associated product in the process of coal mining and washing, accounting for approximately 10-15% of the raw coal production, and in some small احصل على السعر
Underground Disposal of Coal Gangue Backfill in
2022/11/25 China’s total coal production in 2021 exceeded 4.13 billion tons, 52% of the world’s total. Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on the ground احصل على السعر
Sustainable and clean utilization of coal gangue: activation
of coal processing and utilization. Due to the accumulation of a large amount of coal gangue and the failure to fully utilize or dispose it, it caused problems on the environment in the air احصل على السعر
Improvement of strength and microstructure of low-carbon
2024/9/20 As early as 2020, China's annual coal production reached 38 billion tons [2], accounting for about 47 percent of global production [3]. For every ton of coal produced, about احصل على السعر
Technology and engineering test of filling goaf with coal gangue
2023/11/23 Process of filling goaf with coal gangue slurry. The process of filling goaf with coal gangue slurry is shown in Fig. 2.Specifically: the coal gangue is crushed by a multi-stage احصل على السعر
The Relationship between Acid Production and the Microbial
2023/10/25 Coal gangue is a solid waste formed during coal production, and the acid mine drainage it generates during open-pit storage severely pollutes the ecological environment of احصل على السعر
Environmental impact assessment of acidic coal gangue
2024/3/14 In contrast with coal, gangue, characterized by a lower carbon content and higher hardness, constitutes approximately 20 percent of raw coal production and is co احصل على السعر
Review High-capacity utilization of coal gangue as supplementary ...
2024/7/12 Coal gangue (CG), which accounts for about 10–20 % of coal output, is a kind of solid waste generated during the coal mining and washing processes. According to Fig. 2 , the احصل على السعر
Co-combustion and emission characteristics of coal gangue and
2015/2/18 Coal gangue is a problematic by-product generated from the process of mining and beneficiation of coal. It approximately accounts for 10–15 mass % of coal production احصل على السعر
Mechanism and In Situ Prevention of Oxidation in Coal Gangue
2024/8/22 The acid pollution produced from coal gangue piles is a global environmental problem. Terminal technologies, such as neutralization, precipitation, adsorption, ion احصل على السعر
Coal Gangue: Composition, Processing, Use And Recycling
2024/1/18 In the brick-making process, coal gangue can use the heat dissipation characteristics to make adobe- and briquette-free bricks. Coal gangue production of cement احصل على السعر
Sustainable and clean utilization of coal gangue: activation and ...
Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing احصل على السعر
Identification of Coal and Gangue Based on a Lightweight
2023/1/2 To improve the efficiency of coal and gangue separation in coal production, it is imaging based on double-ray transmission minerals and uses image processing and a احصل على السعر
Investigating the compaction and the mechanical behaviors of coal ...
2024/11/1 In the production process of traditional mineral resources and heavy industry, it is inevitable to generate more and more solid waste. Some solid waste is difficult to treat, احصل على السعر
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