MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Can coal gangue burn
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Detection of Spontaneous Combustion Areas of Coal
2023年12月8日 Coal gangue (including bulk gangue and specific lithologies, such as coal, kaoliniterich material, sandstone, carbonate minerals, and sulfide mineralizations), fired coal gangue and condensate products from gas vents 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 Representative coal gangue in China: Physical and chemical 2022年5月1日 Coal and gangue inhibit each other at the moisture evaporation and later combustion stages, but promote each other at the oxygen adsorption and earlier combustion Cospontaneous combustion of coal and gangue: Thermal 1 天前 Plant enrichment and tolerance to heavy metals are crucial for the phytoremediation of coal gangue phytostabilization which can reduce the metal contamination of soil by uptake Contamination characteristics of heavy metals and enrichment
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Study on Pyrolysis and Oxidation Characteristics of
2024年3月15日 It may be attributed to more active functional groups and types that absorb more oxygen in the coal structure; the mass losses of coal and gangue are basically zero in the burnout phase, but the remnant of coal is 2015年2月18日 It was found that the cocombustion with coal can improve the combustion performance of coal gangue in lower ignition temperature and burnout temperature, but can Cocombustion and emission characteristics of coal gangue and 2024年11月8日 The coal gangue in the Qiqijing area belongs to middle and highsulfur coal gangue, which is easy to oxidize and has spontaneous combustion In order to ensure Study on Natural Characteristics of Coal Gangue Oxidation under Therefore, accurately identifying the location and extent of the coal gangue dump fire is crucial for effective fire suppression However, the clarity and precision of detection face challenges This Monitoring Burning Coal Gangue Dump Based on the 3D
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Detection of Coal and Gangue Based on Improved
2024年2月15日 To address the lightweight and realtime issues of coal sorting detection, an intelligent detection method for coal and gangue, Ourv8, was proposed based on improved YOLOv8 Images of coal and gangue with 2024年8月22日 The acid pollution produced from coal gangue piles is a global environmental problem Terminal technologies, such as neutralization, precipitation, adsorption, ion exchange, membrane technology, biological treatment, and electrochemistry, have been developed for acid mine drainage (AMD) treatment These technologies for treating pollutants with low Mechanism and In Situ Prevention of Oxidation in Coal Gangue2024年6月27日 Coal gangue is a solid waste, which can cause serious pollution of the atmosphere and water sources due to its longterm accumulation In this article, the influence of CO2cured coal gangue on the slump flow, the The Influence of CO2 Curing on the Properties of Coal 2022年12月8日 Fouling and slagging are intractable ashrelated problems for boilers burning highsodium coals (HSC) to produce electricity or heat Reduction and resource utilization of solid waste, coal gangues, is urgent because of stringent environmental regulations and economic benefits Based on the sodiumrich character of Zhundong coal (ZDC) and the mineralogical CoFiring Zhundong Coal with Its Gangue: Combustion
How to Burn Coal in a Wood Stove: The Ultimate Guide
2021年9月5日 In this article, we will discuss how to burn coal in a wood stove for maximum efficiency and safety If you have a wood stove and want to burn coal, this is the ultimate guide for how to do it Coal can be expensive to buy, but with these tips, you will learn how you can make your own coal in an easy way2024年4月9日 The utilization of calcined coal gangue (CCG) and limestone for the preparation of blended cement is an efficient approach to address the issue of coal gangue disposal However, the compressive strength development of blended cement is slow, particularly at high substitution levels of CCG Therefore, this study aimed to promote the hydration and mechanical Influence of Curing Temperature on the Performance of Calcined Coal 2019年5月1日 Fixed carbon content is an important factor in measuring the carbon content of gangue, which is important for monitoring the spontaneous combustion of gangue and reusing coal gangue resources Although traditional measurement methods of fixed carbon content, such as chemical tests, can achieve high accuracy, meeting the actual needs of mines via these Quantitative Inversion of Fixed Carbon Content in Coal Gangue 2023年9月21日 In this study, the research aim is to enhance the activity index of activated coal gangue and study its activation mechanism The activation process of coal gangue was optimized through orthogonal tests, and the BackPropagation (BP) neural network model was improved using a genetic algorithm With the effects of grinding duration, calcination temperature, and Study on the Reactivity Activation of Coal Gangue for Efficient
Opportunities, challenges and modification methods of coal gangue
2024年9月7日 Coal gangue is a complex industrial solid waste mixed with organic compounds, inorganic compounds and minerals (Fabiańska et al 2013)Its major chemical compositions are SiO 2, Al 2 O 3 and Fe 2 O 3, with traces of CaO, P 2 O 5, MgO and MnO 2The chemical composition of coal gangue from various sources and its comparison with soil reference 2022年11月2日 Polycyclic aromatic hydrocarbons (PAHs) are recognized as carcinogens that pose a severe threat to human health Research on the temporal variation of PAHs was confined to monthly and seasonal investigations, and a longer timescale study remained inadequate until recently Therefore, this study focuses on the decadal variation of PAHs in environmental Decadal Variation of Polycyclic Aromatic Hydrocarbons (PAHs) in Sustainability 2022, 14, 16451 3 of 14 2 Experimental 21 Materials A coal and coal gangue sample collected from Zhundong region were used as fuels and denoted as ZDC and ZDG, respectivelyCoFiring Zhundong Coal with Its Gangue: Combustion2024年3月14日 With the continual advancement of coal resource development, the comprehensive utilization of coal gangue as a byproduct encounters certain constraints A substantial amount of untreated coal gangue is openly stored, particularly acidic gangue exposed to rainfall The leaching effect of acidic solutions, containing heavy metal ions and other Environmental impact assessment of acidic coal gangue
(PDF) Power Generation from Coal Gangue in China
2012年7月2日 This paper provides an overview on the current status of power generation in China using coal gangue The government regulation towards the use of coal gangue for power generation is introduced2023年5月25日 Coal gangue, produced during coal mining and processing [1, 2], is one of the most extensively produced solid wastes in China [1, 3], accounting for approximately 10%‒20% of raw coal production []The accumulation of coal gangue causes serious environmental, social, and economic problems in the coal mining area []Heavy metals and harmful organic substances in Lowcarbon utilization of coal gangue under the carbon 2023年9月21日 In order to effectively control high temperatures inside coal gangue hills, gravity heat pipes with specific spacings are vertically installed in coal gangue hills Heat extracted from these heat pipes can be utilized for power generation through energy conversion In this study, an equivalent model of gravity heat pipes in coal gangue hills was established and, in a laboratory Optimization of the Parameters for Gravity Heat Pipes in Coal Gangue Unique value of coal slime ball 1The coal slime balls can burn more fully in the furnace than coal slurries directly burning 2Coal slime ball breaks the limits of small fuel supply selectivity at pitmouth power plant It can increase the amount of slime usage and the share of Why can coal slurry drying and briquetting bring you huge profits?
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Coal Gangue: Composition, Processing, Use And Recycling
2024年1月18日 Coal: One of the main components of coal gangue is coal itself, including different types of coal, such as stone coal, lignite, anthracite, etc Rock: Coal gangue usually contains a large amount of rockThese rocks may be rock layers above and below the coal seam or other stones in the deposit Pyrite: As you mentioned, coal gangue may contain pyrite, a 2024年5月14日 To realize the largescale utilization of municipal solid waste incineration (MSWI) fly ash in the field of building materials and to reduce the cost of coal mine backfill mining, the effects of the mixing ratio of cementitious materials, the particle size distribution of aggregates, and the amount and mass concentration of cementitious materials on the properties of backfill Preparation and Properties of Expansive Backfill Material Based on 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 Laser2024年1月27日 Spontaneous combustion coal gangue (SCCG) is considered to be an aluminosilicatebased solid waste containing various toxic ions The alkaliactivation method for this material can not only fully use its potential hydration activity but also solidify the hazardous components to some extent Through introducing additional Pb2+, the solidification behavior of Solidification Behavior of Heavy Metal Pb2+ for Spontaneous
Cocombustion and emission characteristics of coal gangue and
2015年6月1日 Coal gangue (CG) and raw coal (RC) can catch fire due to spontaneous combustion The combustion characteristics, functional groups, and kinetic behaviour of CG and RC were investigated to assess 2008年7月1日 Request PDF Environmental characterization of burnt coal gangue banks at Yangquan, Shanxi Province, China The environmental characteristics of coal gangue dumps in Yangquan (Shanxi Province Environmental characterization of burnt coal gangue banks at Coal gangue 425 620 805 4581 80% coal gangue 440 550 865 4743 60% coal gangue 446 626 889 6001 40% coal gangue 450 604 1146 6705 20% coal gangue 451 607 1040 8594 Petroleum coke 454 652 1048 8064 312 Analysis of DTG curves with different mixing ratios It can be seen from the DTG graph that thePAPER OPEN ACCESS Thermogravimetric analysis of combustion Nowadays, most of the deep learning coal gangue identification methods need to be performed on highperformance CPU or GPU hardware devices, which are inconvenient to use in complex underground coal mine environments due to their high power consumption, huge size, and significant heat generation Aiming to resolve these problems, this paper proposes a coal YOLOv4TinyBased Coal Gangue Image Recognition and FPGA
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Exploring calcined coal gangue fines as the total substitute of fly
2022年12月1日 Coal gangue, a waste produced during coal mining, has been regarded as the largest source of industrial waste in China It is estimated that the production of 1 t coal generates 01–025 t coal gangue [1], and the total stockpile of coal gangue exceeds 6 billion tons in China [2], [3]The coal gangue not only occupies agricultural land in large areas but triggers In order to comprehensively utilize coal gangue, we present fluidized calcination as a new thermal technology for activating coal gangue and systematical study was conducted in comparison with static calcination The calcined products obtained by different calcination methods under various temperatures were characterized by the means of Xray diffraction (XRD), thermal gravimetry Investigation on Calcination Behaviors of Coal Gangue by 2020年1月23日 The construction of a power plant using a 660 MWe supercritical circulating fluidized bed (CFB) boiler with cocombustion of coal and gangue has been proposed in China Therefore, this study simulated the distribution law and transformation mechanism of sulfurcontaining phases using three lowcalorific samples of gangue and coal mixtures under Sulfur Conversion of Mixed Coal and Gangue during Combustion 2024年11月1日 Using coal gangue as subgrade filler (CGSF) can address the accumulated issues of coal mine waste, but also save the constructing costs, which has the important ecological and engineering Investigating the compaction and the mechanical behaviors of coal
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Experimental study on mixed pyrolysis of biomass and coal gangue
China, coal is the main source of energy Gangue is a solid waste generated during the mining and washing of coal [2], which contains high amounts of ash and low calorific value and is difficult to burn [3, 4] Hundreds of millions of tons of coal gangue are discharged every year [5], resulting in2016年4月1日 The interactions between coal gangue and pine sawdust during the combustion process were studied using thermogravimetric analysis The effect of the blending ratio, oxygen concentration and Interactions of coal gangue and pine sawdust during combustion 2023年3月24日 Using coal gangue as subgrade filler can not only solve the environmental problems of coal mine waste accumulation but also decrease the subgrade cost, which has important theoretical and practical significance A Permanent Deformation and Its Unified Model of Coal 2024年5月11日 An aluminum silicate fiber/alumina aerogel (ASF/AA) composite was prepared via the solgel method and atmospheric drying (APD) method using coal gangue (CG) solid waste from Xingxian county, Shanxi Province, as the FiberReinforced Coal GangueBased Alumina Aerogel
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Optimization Study of Coal Gangue Detection in Intelligent Coal
2024年10月23日 To address the low recognition accuracy of models for coal gangue images in intelligent coal preparation systems—especially in identifying small target coal gangue due to factors such as camera angle changes, low illumination, and motion blur—we propose an improved coal gangue separation model, Yolov8nimprovedGD(GD—Gangue Detection), 2020年4月23日 Coal is the main energy source in China, which can produce a large amount of coal gangue in the process of mining In the process of accumulation, coal gangue can release a variety of harmful ions Repairing effects of sulfatereducing bacteria on the dissolved 2020年10月1日 PDF Coal gangue (CG) and raw coal (RC) can catch fire due to spontaneous combustion The combustion characteristics, burnout temperature T 5) and final (from T 5 to 900 °C) stages Experimental and theoretical study on kinetic behaviour of coal gangue 2021年2月14日 In coal production, the raw coal contains a large amount of gangue, which affects the quality of coal and pollutes the environment Separating coal and gangue can improve coal quality, save energy, and reduce consumption and make rational use of resources The separated gangue can also be reused Robots with computer vision technology have become Coal and Gangue Separating Robot System Based on Computer
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An Experimental Study of the Road Performance of Cement Stabilized Coal
2021年8月20日 The research into the road performance of coal gangue is of great significance for the consumption of coal gangue and reducing pollution In this paper, the coal gangues were prepared by separation and crushing processes, and their gradations were also optimized Aiming to identify the possible problems of coal gangue as a pavement base, an unconfined 2024年2月15日 Round 1 Reviewer 1 Report Comments and Suggestions for Authors This authors proposed an innovative approach to address the challenges of lightweight and realtime coal sorting detection based on improved YOLOv8They also focus on the detection of coal and gangue with different density and lighting variations,providing accurate location Detection of Coal and Gangue Based on Improved YOLOv82024年6月6日 The axial compressive behaviours of coal gangue concretefilled steel tube (GCFST) columns after chloride salt corrosion were investigated numerically Numerical modelling was conducted through the static analysis method by finite element (FE) analysis The failure mechanism, residual strength, and axial load–displacement curves were validated against Axial Compressive Behaviours of Coal Gangue ConcreteFilled2024年10月25日 Steel slag from steel mills and coal gangue discarded during coal mining are both reusable solid wastes with significant emissions [1,2] In 2021, the production of steel slag exceeded 120 million tons in China []In contrast, while developed countries have attained a comprehensive utilization rate of over 90 pct for steel slag, China’s comprehensive utilization Synergistic Utilization of Basic Oxygen Furnace Slag and Coal Gangue