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
Complete analysis of coal gangue components
Extraction of valuable components from coal gangue through
2022年9月25日 In this research, thermal activation followed by HNO 3 leaching were performed to extract valuable components from coal gangue Firstly, the activation behavior and phase 2023年3月1日 Develop a principal component analysis network (PCANet) frame for identifying coal and gangue by multispectral imaging Structural similarity index measure (SSIM) of coal Recognition method of coal and gangue combined with structural 2022年12月5日 Many researchers have used machine learning techniques to analyze the spectral data of coal gangue, primarily random forests (RFs), extreme learning machines (ELMs), and twohiddenlayer extreme learning machines Rapid Analysis of Composition of Coal Gangue Based 2022年12月20日 For coal and gangue, intelligent sorting processes for separation, the use of coal and gangue mineral components with different fundamental differences, and the study of different properties of minerals and Research on the Identification Mechanism of Coal
Separation and Recovery of Valuable Carbon
2024年3月13日 The modes of occurrence of Ga and Li in coal gangue were studied using a sequential chem extn procedure (SCEP), mineral phase compn, timeofflight secondary ion mass spectrometry (TOFSIMS), and elemental 2024年9月7日 This paper provided a comprehensive review of various modification methods (including mechanical, chemical, microbiological, thermal, hydrothermal and composite Opportunities, challenges and modification methods of coal 2024年6月4日 Based on the analysis of the characteristics of coal gangue, this paper carded out the current industrial and technical policies in China and comprehensively analyzed the Characteristics of Coal Gangue and Present Situation and Prospect 2022年12月26日 Coal and gangue identification methods used during the top coal caving process are reviewed hereinA review of coal gangue identification research—application to
Coal and Gangue Classification Based on Laser
2023年12月8日 Coal gangue, a solid waste commonly found in coal generation and extraction processes, is characterized by a low carbon content and high ash content Its main components are alumina and silica, and it also contains a 2020年5月15日 The silica and alumina components account for 60–95% of coal gangue so that coal gangue has potential characteristics as a raw material to prepare geopolymer However, the coal gangue str Experimental Study on the Characteristics of 2024年3月14日 Samples of gangue were collected for characterization and analysis to delve deeper into the generation mechanism of the primary pollutant components in the gangue leachate Elemental analysis using Xray fluorescence spectrometer (XRF) on gangue samples reveals significant concentrations of SiO 2 and Al 2 O 3 , reaching 487% and 179%, Environmental impact assessment of acidic coal gangue2024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
Using Chinese Coal Gangue as an Ecological Aggregate and Its
2022年6月26日 The coal consumption yearonyear growth rate of the world since 2010 (data from International Energy Agency Statistics, 2020) DOI: 101016/jmicroc2022 Corpus ID: ; Recognition method of coal and gangue combined with structural similarity index measure and principal component analysis network under multispectral imagingRecognition method of coal and gangue combined 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 Separation and Recovery of Valuable Carbon Components and 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
Extraction of valuable components from coal gangue through
2022年9月25日 Coal gangue, is produced in the processes of coal mining and washing, accounts for 10%–15% of the total coal production, and is one of the largest industrial solid wastes in China [1], [2]At present, the stock of coal gangue in China has reached 6 billion tons and is still increasing at a rate of 300–350 million tons annually, and thousands of coal gangue 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 2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)The heat continues to accumulate during the accumulation process, which leads to spontaneous combustion with the oxidization of coal Comprehensive utilization and environmental risks of coal gangue: A
Research on the Identification Mechanism of Coal
2022年12月20日 For coal and gangue, intelligent sorting processes for separation, the use of coal and gangue mineral components with different fundamental differences, and the study of different properties of 2023年3月1日 Accurate identification of coal and gangue is an important prerequisite for intelligent separation, which can help the intelligent development of coal mines Based on multispectral imaging, we propose a coal and gangue identification method combining structural similarity index measure (SSIM) and principal component analysis network (PCANet)Recognition method of coal and gangue combined with 2013年5月13日 Combustion of coal gangue is extensively used for power generation in China In this paper, pyrolysis and combustion characteristics of a lowrank coal gangue have been investigated under oxyfuel Pyrolysis and Combustion behavior of Coal Gangue in O2/CO2 2020年10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 Experimental and theoretical study on kinetic behaviour of coal gangue
Feasibility Analysis of BacterialTreated Coal Gangue for Soil
2024年6月28日 The longterm storage of coal gangue (CG) mountains causes serious environmental problems such as water and air pollution Thus, sustainable reclamation practices are urgently needed to minimize the environmental impacts brought by CG mountains Pikovskaya medium was employed to screen microorganisms, which were subsequently 2024年11月1日 Using coal gangue as subgrade filler Chemical component analysis complete the vibration compaction of the other two part of samples in sequence following to the above methodInvestigating the compaction and the mechanical behaviors of 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 2024年4月3日 This research addresses the problem of a low Al 2 O 3 extraction ratio when performing a “onestep acid dissolution method” with coal gangue in Fuxin The complete activation temperatures of kaolinite and muscovite are 650 °C and 850 °C respectively, and the decomposition of active Si, active Al, and metakaolinite occurs above 800 °C, which leads to a Mediumtemperature calcination and acid pressure leaching
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 VOLUME XX, 2023 1 Date of publication xxxx 00, 0000, date of current version xxxx 00, 0000 Digital Object Identifier 101109/ACCESS2017Doi NumberPerformance analysis of Coal Gangue Recognition Based on analysis Some coal and gangue samples are shown in Figure 1 22 Multispectral system As shown in Figure 2, the core component is the acquisition unit of multispectral dataRecognition method of coal and gangue based on multispectral2024年5月1日 The annual output of coal gangue, the solid waste produced in the coal mining process, is hundreds of millions of tons, and a large amount of longterm stacking will harm the natural environment [1, 2]The treatment of coal gangue is a common problem faced by all countries in the world, and its resource utilization has become a multidisciplinary research Axialcompression performance and numericalsimulation analysis
Study on mechanical properties and microstructure of steel
2023年11月3日 Incorporating coal gangue into the concrete matrix can realize the utilization of solid waste and reduce the use of natural aggregate To improve the mechanical properties of coal gangue concrete The ratios of coal gangue to corncob were 20% and 40%, the temperature was over 200 °C, and the copyrolysis of corncob and coal gangue had a certain synergistic effect There is yet to be sufficient research on the synergistic effect of biomass and coal gangue combustionSynergistic analysis of cocombustion of sunflower straw and coal ganguecombustion area and oxidation of gangue hills4 However, coal gangue also has a certain gas adsorption capacity, which may lead to the misinterpretation of monitoring results At present, the research on coal gangue index gas focuses on macroscopic experimental analysis and molecular simulation methods thatMolecular simulation of CO production and adsorption in a coal The capacitance method and SVM are applied to identify coal and gangue, and accurate and efficient identification results are obtained, providing a new feasible solution for research on coal gangue identification To solve the problems of the difficult feature extraction, poor feature credibility and low recognition accuracy of coal and gangue, this paper utilizes the difference in Identification Method of Coal and Coal Gangue Based on
Road performance analysis of cement stabilized coal gangue mixture
2021年11月30日 Incomplete data indicate that coal gangue is accumulated in China, with over 2000 gangue hills covering an area exceeding 200,000 mu and an annual growth rate surpassing 800 million tons2023年11月2日 Study on Green Controllable Preparation of Coal Gangue The findings indicated that the 13X molecular sieve materials possess uniform pores and complete The primary components of the Study on Green Controllable Preparation of Coal GangueBased on the precipitation of heavy metal elements under the leaching condition 5 XRD Analysis of Heavy Metal Elements in the Gangue 51 Mineral Composition CharacterizationMicrostructure of Coal Gangue and Precipitation of Heavy2024年10月26日 When the coal gangue sorting robot sorts coal gangue, the position of the target coal gangue will change due to belt slippage, deviation, and speed fluctuations of the belt conveyor This will Research on efficient matching method of coal gangue Nature
Comprehensive utilization and environmental risks of coal gangue
2019年12月1日 This study aims to provide a highvalue and environmentally friendly method for the application of coalbased solid waste Modified fly ash/polyurethane (MFA/PU) and modified coal gangue powder 2016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 2024年9月13日 The cement used is CEM I 425 N, with its principal characteristics outlined in Table 1The fine aggregate used in this study comprises natural river sand with a fineness modulus of 23, and its gradation curve is illustrated in Fig 1The coarse aggregate is coal gangue obtained from a coal mine in Wuhai City, Inner Mongolia, China, crushed and sieved to The impact of microwave curing on the strength and 2024年3月15日 Coal gangue spontaneous combustion has caused serious environmental and ecological problems To investigate the reaction kinetic parameters of the gangue and the exothermic characteristics of the spontaneous combustion of the influence of the law, this study employs the thermogravimetric method to explore the characteristic parameters of the Study on Pyrolysis and Oxidation Characteristics of Coal Gangue
The effect of biomass addition on pyrolysis characteristics and gas
2021年7月27日 The multicomponent reaction model was used to simulate the pyrolysis reaction of coal gangue and biomass The most suitable model was obtained, and the pyrolysis mechanism was analyzed According to the twocomponent reaction model of CG pyrolysis, the decomposition temperature range of components in CG is 340800 °C and 400620 °Ccoal gangue analysis; however, they are slow and expensive Many researchers have used machine algorithms may be used to accurately identify the components of coal Yan et al [19] usedRapid Analysis of Composition of Coal Gangue Based on2019年11月29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 (PDF) Explicit dynamic analysis of coal gangue particles 2021年12月1日 1 Introduction With the development of society and the acceleration of urbanization, people's demand for energy is gradually increasing As an important nonrenewable primary energy, the annual consumption of coal is huge (Yan et al, 2016)Coal gangue (CG) accounts for about 10%–15% of coal output (Zhou et al, 2014)The largescale development The effect of biomass addition on pyrolysis characteristics and
(PDF) Study on Filling Material Ratio and Filling Effect
2019年6月2日 The study includes the optimization analysis of the filling technology, focusing on the composition of the coal gangue paste filling system and the optimization of the system components