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
Gange coal density Gangue coal density Gangue coal density
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Numerical and theoretical investigations of the effect of the
The topcoal drawing bodies for each of the nine models were deduced by inverting the drawn particles The effect of γon the drawing body shape was studied at the initial drawing stage and the normal cycling stage 展开2012年8月20日 A method of separating gangue from coal based on the density by calculating volume and weight of the ores which is measured by the designed equipment was given in this Coal gangue separation system based on density measurement2024年1月13日 In order to achieve the objective of realtime and accurate recognition of the mixing degree between coal and gangue in LTCC mining, this paper proposes an accurate Precise detection of coal and gangue based on natural γray2023年2月23日 This paper presents a dataset of spatial data and shape parameters collected from 37 gangue particles and 135 anthracite coal particles, which come from the The shape parameters of coal and gangue particles derived from
Comprehensive utilization and environmental risks of coal gangue:
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 2022年4月13日 investigate the effect of the ganguecoal density ratio on the dra wing mechanism in longwall topcoal caving The effects were analyzed for the dra wing body, the topcoal boundary, andNumerical and theoretical investigations of the effect 2022年12月5日 After obtaining the quality and thickness of the coal gangue, the coal gangue density should be accurately calculated to improve the identification accuracy The hardness identification method has low energy loss and use Rapid Analysis of Composition of Coal Gangue Based 2020年2月5日 The optimum moisture content (OMC) and maximum dry density (MDD) of coal gangue were calculated for both the size fractions, ie, 475 mm and 0425 mm The OMC (%) Characterization studies on coal gangue for sustainable geotechnics
Numerical and theoretical investigations of the effect of the
Based on data from a wide range of mining conditions, the density of coal is about 12–18 g/cm3, and the density of sedimentary rock is about 18–33 g/cm3 Furthermore, the density of non 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 Investigating the compaction and the mechanical behaviors of 2012年5月25日 The working principle of the separation method was described firstly, then the system composition of the separated system was introduced, and the main influence factors of theseparation accuracy were analyzed Coal gangue separation is an essential part of the development and utilization of coal A method of separating gangue from coal based on the Coal gangue separation system based on density measurement2012年5月1日 Coal gangue separation is an essential part of the development and utilization of coal A method of separating gangue from coal based on the density by calculating volume and weight of the ores Coal gangue separation system based on density measurement
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Preparation and characterization of lowdensity ceramic
2017年9月21日 Lowdensity ceramic proppants were prepared from calcined flint clay and solid waste coal gangue by pelleting, drying, screening and sintering, namely solid state sintering method The density and breakage ratio of the proppants were systematically investigated as a function of sintering temperatureAbstract Discrete element calculations of the topcoal drawing process for different ganguecoal density ratios were conducted to investigate the effect of the ganguecoal density ratio on the drawing mechanism in longwall topcoal caving The effects were analyzed for the drawing body, the topcoal boundary, and the recovery of top coalNumerical and theoretical investigations of the effect of the gangue 2024年11月16日 The efficient separation of coal and gangue remains a critical challenge in modern coal mining, directly impacting energy efficiency, environmental protection, and sustainable development Current machine visionbased sorting methods face significant challenges in dense scenes, where label rewriting problems severely affect model Coal and Gangue Detection Networks with Compact and HighThe left column is ganguecoal column No 1, and the right column is ganguecoal column No 2 Thus, the masses of the two columns are: ˜ = (1) ˚ g ˚ c Gangue density 1833g/cm3 Coal density Numerical and theoretical investigations of the effect of the gangue
Numerical and theoretical investigation of the effect of the gangue
2021年8月15日 Discrete element calculations of the topcoal drawing process for different ganguecoal density ratios were conducted to investigate the effect of the ganguecoal density ratio on the drawing 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 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12月8日 Among them, 16 gangue and 18 coal samples were collected from the Shenfu Dongsheng mine, 18 gangue and 27 coal samples from the Yanzhou mine, and 16 gangue and 5 coal samples from the Pingshuo mine We utilize an Ocean Insight brand MX2500+ spectrometer to collect laserinduced breakdown spectral data of the samples, which has a spectral range of Coal and Gangue Classification Based on LaserInduced 2020年2月5日 Based on the above values, the relative density of coal gangue was found to be 043, which can be compared to medium dense sands and combustion residues like fly ashes and bottom slags Specific surface area (SSA) This property becomes relevant for Characterization studies on coal gangue for sustainable geotechnics
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Effect of Sintering Temperature on Property of LowDensity
94 ISSN 1392–1320 MATERIALS SCIENCE (MEDŽIAGOTYRA)Vol 26, No 1 2020 Effect of Sintering Temperature on Property of LowDensity Ceramic Proppant Adding Coal Gangue Jianying HAO 1 , Huilan HAO 1, Yunfeng GAO 1, Xianjun LI 2, Mei QIN 1, Kaiyue WANG 1 1 Institute of Materials Science and Engineering, Taiyuan University of Science and Technology, 2022年12月5日 At present, the main methods of coal gangue recognition are density recognition, hardness recognition, ray recognition, and image recognition The density identification method uses a liquid medium for identification Rapid Analysis of Composition of Coal Gangue Based Calcined flint clay (456 wt% Al2O3) and solid waste coal gangue were used to prepare lowdensity ceramic proppant by solid state sintering methodEffect of Sintering Temperature on Property of LowDensity Recycling of coal gangue to prepare low density ceramic proppants for coal bed methane wells Ceramics – Silikáty 63 (3) 315320 (2019) 317 is indication of a mass loss of 1054 % The exothermic peak at 990 °C corresponds to the transformation of amorphous SiO 2 RECYCLING OF COAL GANGUE TO PREPARE LOW DENSITY
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A detection method for densely distributed coal and gangue with
2024年4月1日 At this time, a autogenous medium fluidized bed with uniform and stable density can be formed; The 0125–025 mm coal powder particles are uniformly distributed along the XOY section and XOZ 2022年5月3日 Discrete element calculations of the topcoal drawing process for different ganguecoal density ratios were conducted to investigate the effect of the ganguecoal density ratio on the drawing mechanism in longwall topcoal caving The effects were analyzed for the drawing body, the topcoal boundary, and the recovery of top coal The results show that for Numerical and theoretical investigations of the effect of the gangue 2015年2月18日 The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits Lowquality coal is often added to elevate the calorific value of the fuel In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, lowquality coal and their blends Cocombustion and emission characteristics of coal gangue and 2017年9月21日 Lowdensity ceramic proppants were prepared from calcined flint clay and solid waste coal gangue by pelleting, drying, screening and sintering, namely solid state sintering methodPreparation and characterization of lowdensity ceramic proppant
Fast recognition using convolutional neural network for the coal
2021年11月1日 1 Introduction Recognition of the density range can be used for determining the proportions of clean coal, middlings, and gangue in coal samples, sorting coal and gangue [1], and evaluating the separation performance of equipment and regulating parametersAt present, density composition detection in Chinese coal preparation plants is primarily conducted 2022年11月25日 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 15–20% of coal production, when directly discharged on the ground surface as waste heaps, it occupies large areas of land and cause environmental pollution This paper summarizes the existing gangue backfilling Underground Disposal of Coal Gangue Backfill in China MDPI2024年2月15日 PDF To address the lightweight and realtime issues of coal sorting detection, an intelligent detection method for coal and gangue, coal with density greater than 14 but less than 16 g/cm Detection of Coal and Gangue Based on Improved YOLOv8The coal gangue sample was collected from a coal preparation plant in Inner Mongolia Chinese Standard GB/T 194941–2004 was chosen as the sampling method The feed coaland Recovery of Critical Elements from Coal Gangue ResearchGate
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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, hard plastic brick machine, and so on The dry density of the block should not exceed 800 kg/m 3, the compressive strength should not be less than 50 MPa, the water absorption should not exceed 18%, and the weathering resistance 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 []Coal Gangue: Composition, Processing, Use And Recycling2024年2月15日 In this study, a small number of highdensity gangue and lowdensity coal samples with varying thicknesses is selected, and a classification model is quickly and automatically established by combining machine learning algorithms The data samples, as described in Section 22, Dualenergy Xray transmission identification method for coal and 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
Full article: A review of intelligent coal gangue separation
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 Abstract Lowdensity ceramic proppants were prepared from calcined flint clay and solid waste coal gangue by pelleting, drying, screening and sintering, namely solid state sintering method The density and breakage ratio of the proppants were systematically investigated as a function of sintering temperature The morphology and phase composition of the proppants were Preparation and characterization of lowdensity ceramic proppant 2020年6月25日 DOI: 101002/sia6805 Corpus ID: ; Impact of titanate coupling agent on properties of high density polyethylene composite filled with coal gangue @article{Ding2020ImpactOT, title={Impact of titanate coupling agent on properties of high density polyethylene composite filled with coal gangue}, author={Chong Ding and Yihe Zhang and Na Impact of titanate coupling agent on properties of high density 2020年1月2日 Calcined flint clay (456 wt% Al2O3) and solid waste coal gangue were used to prepare lowdensity ceramic proppant by solid state sintering method The density and breakage ratio of the ceramic proppant were systematically investigated as a function of sintering temperature The morphology and phase composition of the ceramic proppant were examined Effect of Sintering Temperature on Property of LowDensity
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Design and application of coal gangue sorting system
2024年7月17日 Scientific Reports Design and application of coal gangue sorting system based on deep learning Skip to main content Thank you for visiting nature2015年1月10日 This paper investigates the feasibility of using coal gangue as coarse and fine aggregates in concrete as well as how the coal gangue aggregate grading affects concrete properties Nine mixed concrete samples were prepared with the value n in Fuller’s curve ranged from 044 to 068 The coal gangue aggregate with n = 062 shows the highest density, water Influence of coal gangue aggregate grading on strength 2017年12月10日 Wang et al (2017) According to the principle of threedimensional laser scanning, a new method for separating coal from gangue based on density was proposed by, and considering this, Separating coal and gangue using threedimensional laser scanningImpact of titanate coupling agent on properties of high density polyethylene composite filled with coal gangue Surface and Interface Analysis ( IF 16) Pub Date : , DOI: 101002/sia6805Impact of titanate coupling agent on properties of high density
(PDF) Diffusion law of coal gangue slurry and the application of
2023年8月14日 PDF In order to deeply study the basic characteristics, diffusion laws, and flow laws of coal gangue and coal gangue slurry, to density, surface area and shape of particles, 2021年5月17日 Recognizing coal and coal gangue is an important part of the coal industry and is mainly conducted via human sorting at based on the density calcul ated from the volume using threedimensional Recognition Methods for Coal and Coal Gangue Based on Deep Learning2023年2月1日 PDF Coal gangue, which is mainly generated during coal excavation, mining, adjustable pore size, low relative density, outstanding sound insulation, and excellent Fabrication and application of porous materials made from coal gangue 2024年2月1日 Coal is not only the most abundant fossil fuel on earth, but also an indispensable energy source in the industrial age According to the data of “2021 National Mineral Resources Reserve Statistics Table”, the cities with the most coal reserves in China's energy minerals are Inner Mongolia, Xinjiang, Shanxi, Hebei, Chongqing, Gansu, Shaanxi and other regionsRepresentative coal gangue in China: Physical and chemical
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(PDF) Extraction of Coal and Gangue Geometric Features with
2018年3月17日 PDF The separation of coal and gangue is an important process of the coal preparation technology (ii) the broadness of probability density function (PDF) of the distributions [29]2022年12月15日 Preparation of high closed porosity foamed ceramics from coal gangue waste for thermal insulation applications Author links open overlay panel Xiang Li a b, Mengbo Pan a b, Mengya Tao a b, Wei Liu a b, Zhengxia Gao a b The results show that the density, compressive strength, and true porosity of the foamed ceramic are 022 g/cm Preparation of high closed porosity foamed ceramics from coal gangue