Coal gangue processing

Representative coal gangue in China: Physical and chemical

2024年2月1日  Based on the source and distribution of coal gangue (CG) in China, this study introduces the current situation of CG storage in China and the problems existing in the 2024年9月7日  Given the coal gangue properties and global land degradation severity, the resourceful utilization of coal gangue as soil conditioners is believed to be a universally Opportunities, challenges and modification methods of coal gangue 2024年9月1日  Thoroughly outlines key technologies of underground intelligent coal gangue sorting Innovatively proposes intermittent and continuous coal gangue sorting devices and Research and prospect of underground intelligent coal gangue 2024年6月4日  Coal gangue is a kind of blackgray rock with lower carbon content and harder than coal in the process of coal formation It is produced in the process of coal bed deposition Characteristics of Coal Gangue and Present Situation and

Lowcarbon utilization of coal gangue under the

2023年5月25日  To grasp the concept of the carbon effect of coal gangue more comprehensively and systematically and provide more economic and reasonable technical strategies for the treatment and utilization of coal gangue against the 2023年11月6日  The research and development of intelligent separation equipment for coal gangue with faster processing capacity and more accurate separation accuracy will promote the reform in the field of coal miningA review of intelligent coal gangue separation 2020年4月29日  For high addedvalue utilization of alumina rich coal gangue (ARCG), a mild hydrochemical process was investigated to extract alumina The influences of NaOH concentration, mass ratio of alkali to gangue, reaction Extraction of alumina from alumina rich coal 2022年4月6日  Among coal miningrelated wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A The Sustainable Utilization of Coal Gangue in Geotechnical

Separation and Recovery of Valuable Carbon

2024年3月13日  Coal is one of the main energy sources in many countries, and coal gangue (CG) is a kind of grayblack rock produced in the process of coal processing and washing, with low carbon content and harder than coal, 2024年11月4日  The extraction of REEs from coal and coal gangue typically involves a roastingleaching process [37, 38]Roasting decomposes the clay mineral structure [], thereby releasing encapsulated REEs, while REEs associated with organic matter are converted into acidsoluble REE oxides during combustion []Many studies have indicated that REEs exist as ion Efficient Leaching of Rare Earth Elements from Coal Gangue 2024年7月23日  Coal is the cornerstone of China’s energy sources and the most economically and lowrisk energy source that can be used efficiently For a long time in the future, China will still have an energy structure dominated by coal []In the process of coal mining and production, the raw coal is inevitably mixed with gangueLightweight detection model for coal gangue identification Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems BURKE R A, FRITZ K M, BARTON C D Impacts of mountaintop Research Progress on Comprehensive Utilization

Coal and Gangue Classification Based on LaserInduced

2023年12月8日  During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced This gangue has a low carbon content but a high ash content, accounting for approximately 15 to 20% of the total coal yield Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in the raw coal and 2023年11月11日  Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energysaving nature However, the response characteristics of coal and gangue vary greatly under different illuminance conditions, which poses challenges to the stability of feature extraction Research on Recognition of Coal and Gangue Based on Laser 2019年12月1日  The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues Over the past few decades, there has been wide attention in developing Comprehensive utilization and environmental risks of coal gangue: A 2023年5月24日  Coal gangue separation is the process of separating coal and gangue that are mixed together during coal mining The presence of gangue can significantly affect the combustion of coal, reduce its calorific value, and emit harmful gases, causing environmental pollution [11, 20, 22]To achieve highquality coal gangue separation, researchers worldwide A fast recognition method for coal gangue image processing

A review of intelligent coal gangue separation technology

2023年11月6日  Traditional Coal Gangue Separation Process and Equipment Water washing and dry coal preparation are the main parts of coal preparation Spiral separation, jigging, heavy medium separation, and other processes are water washing processes, which have the advantages of mature technology, high separation accuracy, and large processing capacity 2022年6月6日  In this study, the coal gangue collected from Jungar coalfield contains 437 ppm of lithium, which is significantly higher than the average content of coal (318 ppm) in China Lithium extraction from the coal gangue was systematically investigated via the integrated process of roasting and acid leaching with the mechanism analysisExtraction of lithium from coal gangue by a roastingleaching process 2024年2月23日  To address the issues of complex algorithm models, poor accuracy, and low realtime performance in the coal industry's coal gangue sorting, a lightweight realtime detection method called YOLOv8sGSC is proposed based on the characteristics of coal gangue This method incorporates the ghost module into the YOLOv8s backbone network to reduce the The realtime detection method for coal gangue based on2024年3月13日  Coal is one of the main energy sources in many countries, and coal gangue (CG) is a kind of grayblack rock produced in the process of coal processing and washing, with low carbon content and harder than coal, Separation and Recovery of Valuable Carbon

Characteristics of Coal Gangue and Present Situation and

2024年6月4日  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 2014), it is the solid waste with the largest output and land occupation in industrial production (Qi 2019)2023年12月1日  Online intelligent recognition of coal and gangue is an important aspect of coal mine intelligent development Current research focuses more on improving recognition accuracy through optimizing image processing algorithms, but there is limited research on the characteristics of coal gangue materials themselves, particularly the comparative analysis of Investigating comparisons on the coal and gangue in various 2024年9月1日  The coal gangue sorting process generates a large amount of waste gangue that needs timely and effective handling Although underground gangue sorting brings significant environmental benefits, treatment of underground gangue still presents environmental issues Gangue from ground sorting is often directly piled into gangue mountains, whereas Research and prospect of underground intelligent coal gangue Coal gangue, a byproduct 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 its environmental impact and improving its value In this study, the formation mechanism and influencing factors of coalganguebased silicon fertilizer was studied using XRD and FTIR Sustainable and clean utilization of coal gangue: activation

Coal Gangue: Composition, Processing, Use And Recycling

2024年1月18日  Coal gangue is a fixed coal mining, washing, and processing product It is a blackgray rock with lower carbon content and harder than coal associated with coal seams during the coal formation process And its chemical composition is SiO2, Al2O3, Fe2O3, MgO, CaO, TiO2, etc What Minerals Do Coal Gangue Mainly Contain? Coal gangue refers []2023年8月31日  It solves the problems of weak spheroidization of iron tailings and difficult expansion of coal gangue CGC production process: 1 Coal gangue is crushed by a jaw crusher and ground by a ball mill Raw materials are screened using a 100mesh vibrating screen 2 Mix raw materials (55% coal gangue and 45% iron tailings) to make particles with a How to Recycle and Process Coal Gangue: 7 Effective Ways2024年1月13日  To address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low radiation level radioactivity measurement Precise detection of coal and gangue based on natural γray2024年4月1日  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 “coalwater” interaction, where pollutants are released into the external environment as leachate [29] Consequently, these pollutants can reach the surrounding land and groundwaterEnvironmental hazards and comprehensive utilization of solid waste coal

Coal Gangue Recognition during Coal

2023年2月26日  The recognition of coal and gangue is the premise and foundation of coal gangue intelligent sorting Adaptive boosting (AdaBoost) algorithmbased coal gangue identification has not been studied in depth This 2017年12月20日  1 Introduction Coal gangue is a significant residue during the processing of coal mining and coal washing, which accounts for approximately 10–15% of raw coal production and becomes one of the largest industrial residues in China []The rapid growth of the mining industry in China over the last decades has resulted in large amounts of coal gangue piled in Trace Elements in Coal Gangue: A Review IntechOpen2021年9月8日  The experimental process of the coal gangue detection and recognition 42 Dataset production and processing Data play an important role in deep learning, and the quality of datasets exerts a significant impact on the detection of coal gangue in practice In this study, Coal gangue detection and recognition algorithm based on 2022年12月5日  Grayscale processing of coal and gangue images In the processing of color images, the three components of R, G and B should be processed respectively, but in fact they cannot reflect the Image feature extraction and recognition model construction of coal

Research progress of highvalue utilization of coal gangue

The coal gangue in China is the core field of bulk solid waste comprehensive utilization due to its massive stock and emission, high concentration of output, small proportion of highvalueadded utilization, and outstanding environmental impact Hence, the prospect of resource utilization of coal gangue is broad The existing disposal capacity and scale of coal gangue obviously 2024年10月25日  The comprehensive utilization of basic oxygen furnace (BOF) slag and coal gangue has always been a significant research interest in alleviating environmental pollution and solid waste, owing to their substantial content of exploitable materials This research investigates the impact of temperature and the ratio of coal gangue incorporation on the modification of Synergistic Utilization of Basic Oxygen Furnace Slag and Coal Gangue 2024年11月1日  Coal gangue, a byproduct rock with low carbon content cogenerated with the coal seam during the coal formation process, is a solid waste that needs to be discharged during coal mining and washing Its main components are SiO 2 and Al 2 O 3 , which not only does its accumulation take up space, but also can selfignite, producing CO and Classification of coal gangue and identification of coal type 2024年11月1日  This gap in knowledge highlights the need for comprehensive studies to optimize the activation process of coal gangue, assess its performance in LC 3 formulations Addressing these research gaps is crucial for advancing the use of coal gangue in LC 3 production and promoting the sustainable development of lowcarbon cement technologiesSynergistic performance of microwaveactivated coal gangue

Cocombustion and emission characteristics of coal gangue

2015年2月18日  Coal gangue is a problematic byproduct generated from the process of mining and beneficiation of coal It approximately accounts for 10–15 mass % of coal production []Huge quantities of coal gangue has been stockpiled during decades of coal production and cause severe environmental impacts, such as acid drainage, heavy metals leaching as well as 2023年10月7日  2 Processing of coal gangue image dataset No matter for traditional methods or current deep learning methods, the quantity and quality of datasets are crucial In this paper, by collecting coal and gangue samples of different sizes and simulating the onsite sorting environment, we use Daheng industrial camera to image the coal and gangue Research on coal gangue classification recognition method 2024年11月4日  The extraction of REEs from coal and coal gangue typically involves a roastingleaching process [37, 38]Roasting decomposes the clay mineral structure [], thereby releasing encapsulated REEs, while REEs associated with organic matter are converted into acidsoluble REE oxides during combustion []Many studies have indicated that REEs exist as ion Efficient Leaching of Rare Earth Elements from Coal Gangue 2024年7月23日  Coal is the cornerstone of China’s energy sources and the most economically and lowrisk energy source that can be used efficiently For a long time in the future, China will still have an energy structure dominated by coal []In the process of coal mining and production, the raw coal is inevitably mixed with gangueLightweight detection model for coal gangue identification

Research Progress on Comprehensive Utilization

Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems BURKE R A, FRITZ K M, BARTON C D Impacts of mountaintop 2023年12月8日  During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced This gangue has a low carbon content but a high ash content, accounting for approximately 15 to 20% of the total coal yield Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in the raw coal and Coal and Gangue Classification Based on LaserInduced 2023年11月11日  Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energysaving nature However, the response characteristics of coal and gangue vary greatly under different illuminance conditions, which poses challenges to the stability of feature extraction Research on Recognition of Coal and Gangue Based on Laser 2019年12月1日  The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues Over the past few decades, there has been wide attention in developing Comprehensive utilization and environmental risks of coal gangue: A

A fast recognition method for coal gangue image processing

2023年5月24日  Coal gangue separation is the process of separating coal and gangue that are mixed together during coal mining The presence of gangue can significantly affect the combustion of coal, reduce its calorific value, and emit harmful gases, causing environmental pollution [11, 20, 22]To achieve highquality coal gangue separation, researchers worldwide 2023年11月6日  Traditional Coal Gangue Separation Process and Equipment Water washing and dry coal preparation are the main parts of coal preparation Spiral separation, jigging, heavy medium separation, and other processes are water washing processes, which have the advantages of mature technology, high separation accuracy, and large processing capacity A review of intelligent coal gangue separation technology 2022年6月6日  In this study, the coal gangue collected from Jungar coalfield contains 437 ppm of lithium, which is significantly higher than the average content of coal (318 ppm) in China Lithium extraction from the coal gangue was systematically investigated via the integrated process of roasting and acid leaching with the mechanism analysisExtraction of lithium from coal gangue by a roastingleaching process

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