Difference between coal gangue and stone gangueDifference between coal gangue and stone gangueDifference between coal gangue and stone gangue

Differentiation between Coal and Stone through Image Analysis of

Material samples are analysed through a process of image acquisition and digital processing Differentiation is found possible between varieties of bituminous coal and associated gangue and stone materials using intensity values and a range of surface texture properties2024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12月20日  There is less research on this fundamental difference between coal and gangue mineral components To further develop the photoelectric separation technology of coal and gangue, the impact of thickness and density Research on the Identification Mechanism of Coal 2023年12月8日  Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in the raw coal and improve the efficiency of coal utilization This study introduces a classification method for Coal and Gangue Classification Based on Laser

Effect and mechanism of coal gangue concrete ScienceDirect

2021年8月2日  Coal gangue concrete (CGC) with 30% fly ash (FA) content has the best workability and strength The modification effect of FA on the working properties and strength 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  The conventional technique, which involves visual inspection, is not only laborintensive but also can introduce inaccuracies Coal and gangue identification methods used A review of coal gangue identification research—application to 2020年2月5日  The geotechnical properties of coal gangue revealed its potential as fill material in the construction of embankments and retaining walls Mineralogical and chemical Characterization studies on coal gangue for sustainable geotechnics

Preparation of coal gangue ceramsite highstrength concrete and

2022年9月30日  Using coal gangue (CG) as a building material does not only reduce the disposal of industrial waste and promote the resource utilization of solid waste, but also solves the 2021年5月1日  In this paper, the physical, chemical and pollution characteristics of coal gangue are summarized, and the ecological restoration mode is divided into two modes: traditional Review of Coal Gangue Characteristics and Ecological Restoration 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 Research on Recognition of Coal and Gangue Based 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 Coal Gangue: Composition, Processing, Use And

Preparation of coal gangue ceramsite highstrength concrete and

2022年9月30日  Finally, there are great differences between coal gangue ceramsite concrete and ordinary concrete in the variation of compressive strength with time and the relationship between elastic modulus 2021年1月7日  To realize coal gangue identification based on the random impact vibration signals between coal gangue and the metal plate, this paper constructs an impact test system so as to realize the test that coal gangue impacting the any position of the metal plate and established the metal plate multipoint acceleration acquisition space, and then completes 1200 Multipoint Acceleration Information Acquisition of the Impact 2024年9月7日  The persistent reliance on coal has resulted in the accumulation of substantial coal gangue, a globally recognized problematic solid waste with environmental risks Given the coal gangue properties and global land degradation severity, the resourceful utilization of coal gangue as soil conditioners is believed to be a universally applicable, costeffective, high Opportunities, challenges and modification methods of coal gangue 2022年4月6日  Abstract Among coal miningrelated wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A thorough understanding of environmental concerns associated with the current model of The Sustainable Utilization of Coal Gangue in Geotechnical and

Identification of Coal and Gangue by Feedforward Neural Network Based

2017年3月15日  By establishing a coalgangue separation system based on the difference between coal and gangue in their surface texture and grayscale feature, this paper proposes a method of combining image feature extraction and artificial neural network, to identify gangue In addition, this method will enable robots, instead of human, to pick the gangueconducted coal gangue image identification by the convolutional neural network and transfer learning Hou et al [35] established coal gangue classification system based on the difference between surface texture and gray scale characteristics, and identified coal gangue by image feature extraction and artificial neural networkSimulation Research on Impact Contact Behavior between Coal Gangue 2023年2月9日  Aiming at the problems of low accuracy of coal gangue recognition and difficult recognition of mixed gangue rate, a coal rock recognition method based on modal fusion of RGB and infrared is proposed A fully mechanized coal gangue transportation test bed is built, RGB images are obtained by camera, and infrared images are obtained by industrial microwave Study on recognition of coal and gangue based on multimode2022年5月30日  In the process of top coal caving, coal gangue particles may impact on various parts of the hydraulic support However, at present, the contact mechanism between coal gangue and hydraulic support is not entirely clear Therefore, this paper first constructed the accurate mathematical model of the hydraulic cylinder equivalent spring stiffness forming by the Simulation Research on Impact Contact Behavior between Coal Gangue

Characteristics of Coal Gangue and Present Situation and

2024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 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 2023年1月19日  The identification of coal gangue is of great significance for its intelligent separation To overcome the interference of visible light, we propose coal gangue recognition based on multispectral imaging and Extreme Gradient Boosting (XGBoost) The data acquisition system is built in the laboratory, and 280 groups of spectral data of coal and coal gangue are Coal gangue recognition based on spectral imaging combined 2021年1月7日  In order to realize the recognition of coal gangue in the top coal caving process, a scheme of the coal gangue recognition based on the collision vibration signal between coal gangue and the metal Multipoint Acceleration Information Acquisition of the Impact

Coal Gangue Detection and Recognition Method Based on Multi

texture of coal gangue, coal gangue can be identified In the study of Dou et al [20] , the topographysvm method was used to identify the optimal features and2021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 Coal and Gangue Separating Robot System Based on 2021年8月2日  Obviously, coal gangue concrete (CGC) made by using coal gangue as coarse aggregate to replace a part of gravel is simpler and more economical, with stronger feasibility and practicability [7] However, a coal gangue aggregate has a looser structure than ordinary crushed stone, with more flake particles and pores; consequently, its performance highly fluctuatesEffect and mechanism of coal gangue concrete ScienceDirect2014年8月1日  Spontaneous combustion coal gangue(SC)and nonspontaneous combustion coal gangue(NSC)were selected as fine aggregate for cement mortars The influences of SC and NSC on the phase composition Influence of coal gangue fine aggregate on microstructure of cement

Comprehensive utilization and environmental risks of coal gangue: A

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 2023年8月14日  coal gangue slurry, the basic characteristic parameters of coal gangue and coal gangue slurry were obtained through particle size distribution test, electron microscope scanning test, X‑ray di (PDF) Diffusion law of coal gangue slurry and the application of 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 Coal Gangue Recognition during Coal Preparation 2021年7月28日  Coal gangue, as a type of solid waste discharged during coal mining and coal washing, occupies a large amount of land resources owing to accumulated gangue, which eventually results in ecological Influence of coal gangue mulching with various thicknesses and

A review of coal gangue identification research—application to

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 2023年10月11日  Backfill mining can effectively alleviate the problems of surface collapse and ecological water pollution, in which the mechanical properties of backfill materials, including coal gangue and coal fly ash, have a decisive role in the effect of filling mining In this study, we analyze the permeability characteristics of coal gangue filler through a set of homemade Study on mechanical properties of coal gangue and fly ash Recognition and separation of Coal/Gangue are important phases in the coal industries for many aspects This paper addressed the topic of Coal/Gangue recognition and built a new model called (CGR The experimental dataset for coal and gangue after2023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

Activation Mechanism of Coal Gangue and Its Impact on the

2022年9月15日  Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time Using coal gangue in geopolymer preparation can effectively reduce cement output and meet the sustainability requirements In this paper, the physical and chemical characteristics, including the heavy metal content, of coal gangue from 2017年2月16日  Coal gangue recognition is the key technology of gangue separation Hou et al [6] [7][8] analyzed the difference data between coal and coal gangue in terms of the surface texture and grayscale (PDF) Identification of Coal and Gangue by Feedforward Neural 2023年11月5日  The distinction between coal gangue and coal still relies on workers’ visual observation and tapping touch, framework that has a redundant perceptual graphbased ranking process but cannot annotate objects with large feature differences Balzategui designed an anomaly detection model based on generative adversarial A Diverse Environment Coal Gangue Image Segmentation Model 2021年1月10日  However, in the raw coal, the surfactants could be removed from gangue surface under ultrasonic and Ca 2+ because of the low proportion of gangue in raw coal and weaker adsorption strength of Ca 2+ on gangue, as indicated by the ash reductionImprovement of Low‐Rank Coal Flotation Based on the

Separation Between Coal and Gangue Based on

2020年3月17日  difference between coal and gangue is yellow color, which clearly appear in the whole coal samples, as shown in Fig 19 W e can also conclude from this experiment that the main2021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 Coal and Gangue Separating Robot System Based 2019年4月11日  Coal gangue is an auxiliary product produced during the mining of coal resources It has low coal content and can not be used for combustion Its main components are clay minerals and quartz components There are also a small amount of trace elements such as SiO2, AL2O3, and C Coal gangue is mainly used for making ceramics, making bricks, What is the difference between coal gangue, fly ash and cinder?2024年11月1日  Using coal gangue as subgrade filler and the mass was captured by the mass difference between the prepared and the remained test materials, so as to obtain the dry densityInvestigating the compaction and the mechanical behaviors of coal

A review of intelligent coal gangue separation technology and

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 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 MDPI2021年1月10日  However, in the raw coal, the surfactants could be removed from gangue surface under ultrasonic and Ca 2+ because of the low proportion of gangue in raw coal and weaker adsorption strength of Ca 2+ on gangue, as indicated by the ash reductionImprovement of Low‐Rank Coal Flotation Based on the 2021年9月27日  Since the aggregate required for concrete usually accounts for 70–80% of the total volume [6], [7], and after years of mining, aggregate resources are reduced dramatically [8], [9]Therefore, using coal gangue as aggregate in concrete will not only promote the resource utilization of coal gangue, but also alleviate the increasing demand for aggregate [10]Multitechnique investigation of concrete with coal gangue

Image feature extraction and recognition model construction of coal

2022年12月5日  The differences between coal and gangue in various gray and texture features were studied experimentally The feature values of a large number of coal and gangue images were extracted to select 2019年12月1日  Coal gangue has a wide range of applications in building material industry, energy industry, agriculture and other emerging industries, which are presented in Fig 3 The recycle of coal gangue is considered as an ecofriendly alternative which not only addresses its disposal, but also contributes to low material costs and sustainable use ofComprehensive utilization and environmental risks of coal gangue: A

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