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
coal gangue discount mark
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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 Coal gangue, a blackgray rock with lower carbon content and heat value compared to coal, accounts for about 15%20% of coal production (Li et al 2006) The Opportunities, challenges and modification methods of coal 2024年6月4日 The origin, type, composition and geological characteristics of coal gangue should be discussed from the aspects of coal accumulation, diagenetic characteristics and Characteristics of Coal Gangue and Present Situation and Prospect 2019年12月1日 Coal gangue, a solid waste generated during coal mining and washing, accounts for approximately 10%–15% of the total coal production The accumulative amount Comprehensive utilization and environmental risks of coal gangue:
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煤矸石中有价关键金属活化提取研究进展 cip
煤矸石是煤炭开采洗选过程中的固体废弃物，是我国产储量最大的工业固废之一，回收利用其中潜在的矿产资源对实现我国绿色矿山建设及“双碳”目标达成意义重大。 通过综合分析国内外现阶 2017年4月1日 Using coal gangue as inexpensive adsorbent is considered The surface properties of coal gangue were studied via nitrogen adsorption The natural gangue, modified The structural and surface properties of natural and modified 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 and 2020年2月5日 The CFA has shown that utilization of coal gangue in mechanically stabilized earth wall construction resulted in a net savings of 1709 CO 2 (kg) emissions Based on the Characterization studies on coal gangue for sustainable geotechnics
Coal Gangue: Composition, Processing, Use And Recycling
2024年1月18日 Coal gangue refers to the waste or byproduct produced when coal is extracted from coal mines These wastes usually include coal gangue (without valuable crushed coal 2024年3月6日 Under some specific conditions, REY is abnormally enriched in coal and its byproducts In some cases, the concentrations of REY in coal and its byproducts can even reach levels comparable to those found in the lowest industrial grade of rare earth deposits, resulting in comprehensive utilization of coal 3, 4, 5 Abnormal enrichment of REY in coal seams in Characterization and acid leaching of rare earth elements in coal 2022年4月6日 “Effect of coal gangue particle size on its leaching characteristics” In GeoCongress 2020: GeoSystems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics, Geotechnical Special Publication 319, edited by J P Hambleton, R Makhnenko, and A S Budge, 107–114The Sustainable Utilization of Coal Gangue in Geotechnical and 2023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 Lowcarbon utilization of coal gangue under the
Summary of the Utilization Status of Coal Gangue hanspub
this paper, the properties of coal gangue were briefly described, and the utilization status of coal gangue of the current domestic and foreign was summarized In the end, the problems existed in the process of making use of gangue were analyzed, and some recommendations were put forward for these problems Keywords Coal Gangue, Solid Waste 2017年12月20日 Coal gangue is one of the largest industrial residues It has high ash content, low carbonaceous content, and heating value Meanwhile, it has some trace elements Large quantities of coal gangue cause serious environmental problems by polluting the air, water, and soil as well as occupying a tremendous amount of land Now, coal gangue utilization is a Trace Elements in Coal Gangue: A Review IntechOpen2017年4月1日 The content of trace elements in the coal gangue as well as the permissible values in soils and surface lands are shown in Table 2 The coal gangue contains trace metals in amounts much smaller than permissible The components of coal gangue are weakly leachable (see Table 3) The leached ions were mainly Na +, K +, Mg 2+, SO 4 2− and Cl −The structural and surface properties of natural and modified coal gangue2024年9月1日 As a byproduct of coal production, coal gangue, if not handled properly, will pose an important hidden danger to the environment and safety Using underground intelligent coal gangue sorting technology can increase efficiency, protect the environment, and enhance safety, which is essential for achieving efficient and ecofriendly coal productionResearch and prospect of underground intelligent coal gangue
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Research on Intellectualized Location of Coal Gangue Logistics
2022年1月5日 The optimization of an integrated coal gangue system of mining, dressing, and backfilling in deep underground mining is a multiobjective and complex decisionmaking process, and the factors such 2023年8月31日 The coal gangue is crushed and screened in the coal preparation plant to form small particles (less than 6 cm) These particles are then paved into a roadbed with a thickness of about 35 cm After compaction, the density can reach 18 t/m 3 so that the roadbed has good waterproof performance and durability and is more costeffectiveHow to Recycle and Process Coal Gangue: 7 Effective Ways2024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 on2020年4月14日 22 Experiment The chemical composition measured by Bruker S8 TIGER XRF analysis; the mineralogical composition measured via Bruker D8 ADVANCE XRD analysis; thermal analysis conducted with Mettler Toledo analyzer in a temperature range of 30–1000 °C at a heating rate of 10 °C/min and N 2 or O 2 atmosphere Mortar strength test: prismatic mortar Identification and Activation of Coal Gangue and Performance
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Enhancing Fatigue Performance of Coal Gangue
2024年4月15日 Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the 2024年11月1日 Coal gangue: The coal gangue (CG) used in this study is untreated raw coal gangue, sourced from Lingshou County, Hebei Province, China Its appearance mostly presents as flakes or blocks of blackgray rocks, and the shape and size of CG varySynergistic performance of microwaveactivated coal gangue with 2024年3月13日 Coal gangue (CG), an industrial solid waste with high contents of Li and Ga, has attracted the attention of researchers However, the utilization of CG remains an economic challenge Preenrichment of Li and Ga by flotation was carried out with a view to improving the comprehensive utilization of CG Mineral composition, timeofflight secondary ion mass Separation and Recovery of Valuable Carbon ACS PublicationsThe 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 Research progress of highvalue utilization of coal gangue
Coal Gangue Recognition during Coal Preparation Using an
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 paper proposed a coal gangue image recognition algorithm and a strong classifier based on the AdaBoost algorithm with a genetic 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 Efficient2024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 YOLOv8Detection of Coal and Gangue Based on Improved YOLOv82024年9月20日 Coal gangue contains a portion of clay minerals, and after thermal activation of about 700 ℃, the kaolinite in calcined coal gangue (CCG) can be transformed into metakaolin, which has pozzolanic activity and can be used as supplementary cementitious materials (SCMs) [10], [11], [12]This can not only consume a large portion of discharged coal gangue, but also Improvement of strength and microstructure of lowcarbon
Automatic Coal and Gangue Segmentation Using UNet Based
1 ¢ ¢ + + + = + = + = + (,) = == ++ +!! "! u u 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 Detection of Coal and Gangue Based on Improved 2022年6月26日 The coal consumption yearonyear growth rate of the world since 2010 (data from International Energy Agency Statistics, 2020) Using Chinese Coal Gangue as an Ecological 2024年10月9日 The coalgangue recognition technology plays an important role in the intelligent realization of fully mechanized caving face and the improvement of coal quality Although great progress has been Coalgangue sound recognition using hybrid multibranch CNN
Research on the Preparation of Kaolin from Coal Gangue by
2023年10月26日 In order to find a better collector for the separation of carbon and kaolin from coal gangue flotation, and to explore the action mechanism of collectors, this paper selected 12 kinds of collectors for systematic comparison, including five nonpolar organics with different carbon chain lengths, and polar organic matters with double bonds, triple bonds, benzene, as 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 polluting the air, and Classification of coal gangue and identification of coal type based 2023年2月1日 coal gangue must be pretreated before the synthesis of zeolite, for instance through granular refinement, calcination and acid treatment 21, 118Fabrication and application of porous materials made from coal gangue 2024年11月24日 Coal gangue is a black solid waste generated during the extraction and refinement of coal resources (Luo et al, 2020) that is increasingly being accumulated at mining sites in China due to the increasing coal production (Li et al, 2019; Zhu et al, 2022)Data indicate that the total accumulation of coal gangue associated with coal production in China has The use of coal gangue as a planting substrate in arid mining areas
Recent Patents on Roll Crushing Mills for Selective Crushing of Coal
Background: Gangue is the concomitant product of coal mining The traditional approach for gangue treatment is to transport it from underground to ground level to accumulate and form gangue hills Objective: On the basis of summarizing previous research results, this paper introduces the hydraulic roller crusher and the electric machine builtin coal gangue roller 2023年12月1日 Coal gangue, characterized by high ash content and low heating value, is an undesired but inevitable byproduct of coal mining [[1], [2], [3]]Based on the fuel flexibility advantage of circulating fluidized bed combustion (CFBC) technology and increasing demand for electricity, coal gangue is widely used in CFBC power plants for power generation in some Air and oxyfuel combustion characteristics of coal gangue and 2022年11月25日 PDF China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for Find, read and cite all the (PDF) Underground Disposal of Coal Gangue Backfill in China2019年8月25日 Coal gangue is the largest amount of industrial solid waste in China It caused serious damage to the ecological environment and waste resources Therefore, it is of great significance to realize the resource utilization of coal gangue, protecting the environment and realizing the sustainable development of society This paper summarizes the utilization of coal The Current Situation Research on Comprehensive Utilization of Coal Gangue
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Reactivity activation of waste coal gangue and its impact on the
2020年2月20日 A large amount of coal gangue buildup may be a potential fire hazard associated with the heat released by microorganisms accumulating to the point of spontaneous combustion in the presence of unburned coal, pyrite (FeS 2) and oxygenCoal gangue is likely to cause largescale fire and blast disasters, and produce a significant amount of toxic emissions 2024年4月18日 Coal gangue and aluminum ash emerge as quintessential constituents within the ambit of coalderived solid waste and industrial residue, respectively Leveraging coal gangue as a primary substrate and aluminum Study on the Synthesis of LTAType Molecular Sieves Materials 2020, 13, 2442 2 of 16 the most massive industrial solid waste in China The main chemical components of coal gangue are SiO2 and Al2O3, and the activity of raw coal gangue is very deficient; it shows pozzolanic activity after calcination at 700 C, which has similar chemical characteristics with fly ash and metakaolin Slag belongs to the material of high calcium Characteristics of AlkaliActivated Coal GangueSlag MortarsPDF On Jan 1, 2021, 增澳 董 published Research Progress on Comprehensive Utilization and Resourceful Treatment of Coal Gangue Find, read and cite all the research you need on ResearchGateResearch Progress on Comprehensive Utilization and Resourceful
Study on the macro–micro evolution of compaction Nature
2024年2月28日 Currently the main method of mine solid waste disposal and utilization is to apply gangue to underground filling For the grading characteristics of coal gangue in the hollow zone in underground 2024年7月19日 The occurrence of gallium in galliumenriched coal gangue and the migration of gallium during thermal treatment were systematically studied The phase and chemical composition of galliumenriched coal gangue were determined, and the gallium content was determined by inductively coupled plasma mass spectrometer (ICPMS) The mineralogical Study on the Occurrence of Gallium in GalliumEnriched Coal Gangue 2022年12月26日 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 during the coal release process The conventional technique, which involves visual inspection, is not only laborintensive but also can introduce inaccuracies Coal and gangue identification methods A review of coal gangue identification research—application to 2024年5月1日 The coal gangue particle size is 5–12 mm, the apparent density is 2783 kg/m 3, the bulk density is 1287 kg/m 3, and the carbon content is (083 ± 002) % The amount of coal gangue concrete materials is shown in Table 1 Table 1 Coal gangue concrete mix proportion Experiment number Cement (kg/m 3)Axialcompression performance and numericalsimulation analysis
Multiscale coal and gangue detection in dense state based on
2023年11月15日 Automated sorting equipment for coal gangue is progressively replacing large mechanized separation equipment (eg, a vibrating screen [5], airdense medium fluidized bed [6], and heavy medium wet separation method [7]) for its high integration and efficiencyGangue identification and positioning have been confirmed as a vital technology in the automated