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
Secondary quicklime selection of coal gangue
Experimental investigation of the mechanical properties and large
The mechanical properties of the material, such as the compressive strength, play an important role in its performance Based on the different proportions of coal gangue and fly ash, the mixture of coal gangue and fly ash (CF) was divided into four ratio groups (3:1, 2:1, 1:1 and 1:2), accounting for 85% of the total 展开2024年11月7日 Water absorption, mechanical properties and interface structure of four concretes containing the original, 450 °Ccalcined (CGA450), 750 °Ccalcined (CGA750) and Preparation and properties of phosphogypsumbased calcined 2024年7月12日 Research suggests that contingent upon the degree and purpose of treatment (activation), CG can be applied in SCM (partially replacing cement), geopolymer (completely Review Highcapacity utilization of coal gangue as supplementary 2022年12月1日 Liquid intervention is an effective method for improving the coal/gangue recognition accuracy in longwall top coal caving mining, especially for coal and gangue with Effect of secondary intervention on recognition accuracy of coal
Separation and Recovery of Valuable Carbon ACS
2024年3月13日 A Bi 1+ primary ion beam having an energy of 30 keV with an incident angle of 45° was rastered over a 400 μm × 400 μm area on the sample surface for coal gangue analysis To collect secondary ions, this area was Here, an environmentfriendly process for separating valuable components from CG was proposed: the closedloop system of activationleachseparation The results show that the Closedloop cleaning treatment system — resource recovery of Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue resource utilization, mainly including: extracting and recovering useful components such Research Progress on Comprehensive Utilization of 2023年5月25日 To better guide the comprehensive management and utilization of coal gangue, it is necessary to combine the carbon–neutral background and carbon properties of coal gangue to explore a utilization path which is more Lowcarbon utilization of coal gangue under the
Opportunities, challenges and modification methods of coal
2024年9月7日 In practical applications and subsequent research endeavors, an appropriate modification method should be selected to obtain modified coal gangue with matching 2022年4月6日 Ashfaq, M, M Heeralal, and A A B Moghal 2020b “Effect of coal gangue particle size on its leaching characteristics” In GeoCongress 2020: GeoSystems F, S Saride, and A J Puppala 2011 “Comprehensive life The Sustainable Utilization of Coal Gangue in 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 Starting from the resource characteristics of coal gangue, this paper Research Progress on Comprehensive Utilization of 2022年10月2日 In order to explore the potential effects of abandoned coal mines on the water quality of Ordovician limestone aquifers, waterrock interaction simulations were conducted After the closure of the coal mine, the Effects of Coal Gangue on the Hydrochemical
Improving strength of calcinated coal gangue geopolymer
2018年3月1日 In this study, the calcinated coal gangue was mixed with granulated blast furnace slag (GBFS) and slaked lime in making geopolymer based on increasing calcium content to improve the strengthKeywords Coal gangue, Gangue sorting, Gangue detection, Deep learning, System applications Coal remains the primary source of energy in China, with its consumption consistently exceeding 50% HowDesign and application of coal gangue sorting system based on2022年7月1日 A coal gangue sorting manipulator plays an important role in green mining Because it needs to sort the coal gangue at different positions on a conveyor belt when performing the coal gangue rough sorting tasks, the coal gangue sorting manipulator has high requirements for the detection algorithm [1]However, traditional target detection algorithms Research on intelligent detection of coal gangue based on deep 2023年8月31日 3 The method for preparing the cementitious material by the sintering activation of the coal gangue according to claim 1, wherein in step (1), the coarsegrained coal gangue is crushed to −15 mm by a jaw crusher and then crushed to 8 mm by a roller crusher; subsequently, a highpressure roller mill is configured for crushing until the crushed coal gangue with a METHOD FOR PREPARING CEMENTING MATERIAL BY SINTERING ACTIVATION OF COAL
Effect of coal gangue grading characteristics on cemented paste
Studies in the field of concrete [6], [7], [8], the characteristics of various aggregates, such as size, content, grading, and shape, have a distinct impact on the rheological properties of concreteGeiker et al [9] and colleagues have revealed that an increase in the volume fraction of coarse aggregate leads to a substantial rise in yield stress and viscosity of concrete2023年8月1日 Coal is the most abundant and widely distributed fossil fuel on earth, and it is also the ballast stone of China's energy system Coal accounts for more than 27 % of the world's primary energy [1], [2], and pyrolysis and combustion are the main ways of coal utilizationIn the mining of coal, a large amount of coal gangue (CG) is interspersed, the current accumulation Study on secondary oxidation characteristics of coal gangue at Abstract: Aiming at the utilization of coal gasification slag, it is proposed to prepare coal gasification slag as mine filling material The optimum ratio of cement: coal gasification slag: gangue is 1:5:1, the mass fraction is 70%, and the dosage of quicklime is 4% The strength of backfill reaches 423mpa, which can meet theStudy on the proportion of coal gasification slag paste filling 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 Separation and Recovery of Valuable Carbon ACS
The Current Situation Research on Comprehensive Utilization of Coal Gangue
2019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 Raybased gangue selection is mainly divided into two categories: Xray 11 and γray 12, which distinguish coal from gangue based on radiation attenuation levels Imagebased gangue selection is trained and optimized using deep learning algorithms, enabling the identification of coal and gangueDesign and application of coal gangue sorting system based on 2022年7月1日 Separation of calcined coal gangue and its influence on the performance of cementbased materials Author links open overlay panel Aiguo The secondary hydration reaction generated by YWC could also strengthen the interface transition zone between CCG particles and matrix (Fig 16) Meanwhile, more cementitious components such as Separation of calcined coal gangue and its influence on the Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, Urea and quicklime were utilized as additives to optimize slurry transportability and compressive strengthThe annual coal gangue production in different provinces of
Resource utilisation of hazardous aluminium dross and coal gangue
2024年5月23日 The resource utilisation of hazardous aluminium dross and coal gangue for fibrereinforced cemented foam backfill can enhance the stability of filling stopes and address environmental issues2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal Characteristics of Coal Gangue and Present Situation and 2017年11月23日 Selection of Test Materials SiO 2 is the main component with high content, accounting for 599% and 537% of the fresh and weathered coal gangue, respectively The secondary element is Al 2 O 3, accounting for 207% and 176% of fresh and weathered coal gangue, respectivelyMicrostructure of Coal Gangue and Precipitation of Heavy Metal 2019年6月2日 Filling mining is an effective way to settle the dilemma of “Three Down and One Above” in coal mining Fly ash and coal gangue can be used as filling materials with significant social, Quicklime: the quicklime was purchased from a lime plant with 93% CaO content (b) As the secondary factor shown in the range analysis, Study on Filling Material Ratio and Filling Effect: Taking Coarse Fly
Effect of secondary intervention on recognition accuracy of coal
2022年12月1日 Download Citation Effect of secondary intervention on recognition accuracy of coal and gangue with small gray difference Liquid intervention is an effective method for improving the coal 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 2022年1月1日 Coalgangue is a kind of low carbon solid waste produced in coal mining and processing, accounting for about 15 % of the total output of raw Technical transformation plan and economic analysis of manual selection workshop in coal preparation plant China Energy and Environmental Protection, 40 (2018), pp 154158 View in Scopus Detection of coal and gangue based on improved YOLOv51 which embedded 2023年8月1日 Coal gangue (CG) is an industrial solid waste produced in coal mining and washing processes [1, 2]Currently, 5 billion tons of CG have been stacked in China with an annual growth rate of 270–350 million tons [3]It is noteworthy that CG will has the potential to be used as gasification fuel and heat accumulator in coal gasifier if it has a certain amount of Effects of fuelstaged gasification on mechanism of steam
Multiscale coal and gangue dualenergy Xray image concave
2022年6月15日 Photoelectric sorting technology is capable of collecting images of coal and gangue through dualenergy Xray transmission, calculating sorting parameters from the images in accordance with the different Xray attenuation intensities after transmission, and then identifying coal and gangue [3], [4]However, to calculate the image, the independent target 2023年8月15日 To reduce the adverse impact of coal gangue heaping and save natural resource, artificial coal gangue sands are utilized as fine aggregates in the concrete preparation The mechanical and environmental properties of coal gangue sand concrete were studied experimentally and theoretically by considering concrete strength grades (C30, C50) and Life cycle assessment of coal gangue composite cements: From 2023年5月21日 Excessive accumulation of coal gangue will cause serious environmental problems 2 – 4 At present, the coal gangue is mainly used as concrete coarse aggregate or fine aggregate filling material, to ensure the performance of concrete under the premise of improving the recycling rate of coal gangue 5 – 8Residual deformation of coal gangue subgrade filler under multi 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
The application of the gangue backfilling technologies in some coal
Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, Urea and quicklime were utilized as additives to optimize slurry transportability and compressive strength2023年8月1日 Biomass materials are potential to promote coal gangue pyrolysis process This study investigates the effects of four biomass materials derived from different sources, namely sodium alginate (SA), sodium carboxymethyl cellulose (CMC), chitosan (CS), and guar gum (GG), on the pyrolysis of coal gangue (CG) in a nitrogen atmosphereStudy on secondary oxidation characteristics of coal gangue at Download Citation On Aug 1, 2023, Chenguang Wang and others published Study on secondary oxidation characteristics of coal gangue at different pyrolysis rank Find, read and cite all the Study on secondary oxidation characteristics of coal gangue at 2022年4月6日 Ashfaq, M, M Heeralal, and A A B Moghal 2020b “Effect of coal gangue particle size on its leaching characteristics” In GeoCongress 2020: GeoSystems F, S Saride, and A J Puppala 2011 “Comprehensive life The Sustainable Utilization of Coal Gangue in
Research Progress on Comprehensive Utilization of
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 Starting from the resource characteristics of coal gangue, this paper 2022年10月2日 In order to explore the potential effects of abandoned coal mines on the water quality of Ordovician limestone aquifers, waterrock interaction simulations were conducted After the closure of the coal mine, the Effects of Coal Gangue on the Hydrochemical 2018年3月1日 In this study, the calcinated coal gangue was mixed with granulated blast furnace slag (GBFS) and slaked lime in making geopolymer based on increasing calcium content to improve the strengthImproving strength of calcinated coal gangue geopolymer Keywords Coal gangue, Gangue sorting, Gangue detection, Deep learning, System applications Coal remains the primary source of energy in China, with its consumption consistently exceeding 50% HowDesign and application of coal gangue sorting system based on
Research on intelligent detection of coal gangue based on deep
2022年7月1日 A coal gangue sorting manipulator plays an important role in green mining Because it needs to sort the coal gangue at different positions on a conveyor belt when performing the coal gangue rough sorting tasks, the coal gangue sorting manipulator has high requirements for the detection algorithm [1]However, traditional target detection algorithms 2023年8月31日 3 The method for preparing the cementitious material by the sintering activation of the coal gangue according to claim 1, wherein in step (1), the coarsegrained coal gangue is crushed to −15 mm by a jaw crusher and then crushed to 8 mm by a roller crusher; subsequently, a highpressure roller mill is configured for crushing until the crushed coal gangue with a METHOD FOR PREPARING CEMENTING MATERIAL BY SINTERING ACTIVATION OF COAL Studies in the field of concrete [6], [7], [8], the characteristics of various aggregates, such as size, content, grading, and shape, have a distinct impact on the rheological properties of concreteGeiker et al [9] and colleagues have revealed that an increase in the volume fraction of coarse aggregate leads to a substantial rise in yield stress and viscosity of concreteEffect of coal gangue grading characteristics on cemented paste 2023年8月1日 Coal is the most abundant and widely distributed fossil fuel on earth, and it is also the ballast stone of China's energy system Coal accounts for more than 27 % of the world's primary energy [1], [2], and pyrolysis and combustion are the main ways of coal utilizationIn the mining of coal, a large amount of coal gangue (CG) is interspersed, the current accumulation Study on secondary oxidation characteristics of coal gangue at
Study on the proportion of coal gasification slag paste filling
Abstract: Aiming at the utilization of coal gasification slag, it is proposed to prepare coal gasification slag as mine filling material The optimum ratio of cement: coal gasification slag: gangue is 1:5:1, the mass fraction is 70%, and the dosage of quicklime is 4% The strength of backfill reaches 423mpa, which can meet the