Is there a machine to improve the grade of coal gangue
Design and application of coal gangue sorting system
2024年7月17日 Demonstration experiments using the system prototype for coal gangue sorting reveal that, compared to existing robotic arm sorting methods in coal washing plants, this system achieves a2023年11月6日 Conventional coal gangue separation equipment, such as spiral separation equipment, heavy medium shallow trough separation equipment, and TBS interference bed separation equipment have the advantages of mature Full article: A review of intelligent coal gangue 2024年9月1日 Li and Sun (2018) proposed a simple, fast, and easy to implement coal gangue classification method using least squares support vector machine (LSSVM) based on Research and prospect of underground intelligent coal gangue 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
Opportunities, challenges and modification methods of coal
2024年9月7日 This paper provided a comprehensive review of various modification methods (including mechanical, chemical, microbiological, thermal, hydrothermal and composite 2022年7月13日 In this paper, based on small samples, image augmentation, and generative adversarial network were used to expand dataset of CG images to improve the performance of A data expansion strategy for improving coalgangue detection2023年2月26日 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 Coal Gangue Recognition during Coal Preparation 2022年11月25日 This paper shows that the industrial implementation of these technologies can increase the current maximum disposal capacity of coal gangue by three times, reaching five million tons per year The equipment innovation Underground Disposal of Coal Gangue Backfill in China
Study on the macro–micro evolution of compaction Nature
2024年2月28日 Fill mining, as a green mining technology, utilises coal gangue underground for filling in order to reduce problems such as difficulty in accumulating coal gangue on the 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 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 2022年9月30日 To improve the performance of CG ceramsite lightweight aggregate concrete (CGCLAC), it is necessary to improve the physical and mechanical properties of coal gangue ceramsitesPreparation of coal gangue ceramsite highstrength concrete and
Comprehensive utilization and environmental risks of coal gangue
2019年12月1日 The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization 2021年8月20日 The research into the road performance of coal gangue is of great significance for the consumption of coal gangue and reducing pollution In this paper, the coal gangues were prepared by separation and crushing processes, and their gradations were also optimized Aiming to identify the possible problems of coal gangue as a pavement base, an unconfined An Experimental Study of the Road Performance of Cement Stabilized Coal 2023年11月21日 Coal gangue (CG) is an environmental waste that faces an urgent demand for disposal in China The utilization of CG in construction materials has broad application prospects and gained increasing An alternative approach to improve the compatibility of PCE in 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 characteristics of coal and gangue vary greatly under different illuminance conditions, which poses challenges to the stability of feature extraction Research on Recognition of Coal and Gangue Based on Laser
Study of Mechanics and Durability of NonSpontaneous Combustion Coal
2024年3月27日 The coal gangue coarseaggregate content in ordinary concrete should not be too large In order to further improve the utilization rate of coal gangue coarse aggregate, this study used the principle of “strong wrapped weak” to prepare highperformance concrete This study considered four factors, namely, water–binder (W/B) ratios, nonspontaneous 2023年3月1日 Abstract In order to improve the utilization rate of coal gangue and expand the application range of coal gangue concrete (CGC), a certain proportion of steel fiber was added to the concrete, and Reusing waste coal gangue to improve the dispersivity and 2023年8月31日 Coal gangue is a waste byproduct generated during coal mining and processing It is harder than coal, has a lower carbon content, and its main components are SiO 2 and Al 2 O 3 Coal gangue has become a significant industrial solid waste because it pollutes the environment and is prone to spontaneous combustionHow to Recycle and Process Coal Gangue: 7 Effective Waysto improve the durability of stabilized coal gangue Therefore, the utilization and ap plicability of coal gangue are limited due to the constraints mentioned aboveType of the Paper (Article ResearchGate
Axialcompression performance and numericalsimulation analysis
2024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 2024年10月23日 To address the low recognition accuracy of models for coal gangue images in intelligent coal preparation systems—especially in identifying small target coal gangue due to factors such as camera angle changes, low illumination, and motion blur—we propose an improved coal gangue separation model, Yolov8nimprovedGD(GD—Gangue Detection), Optimization Study of Coal Gangue Detection in Intelligent Coal 2023年10月7日 For the traditional machine learning methods rely on manual experience and deep learning classification model depth and complex structure, resulting in poor gangue classification performance, this Research on coal gangue classification recognition method based 2016年2月26日 Ore sorting is a useful tool to remove gangue material from the ore and increase the quality of the ore The vast developments in the area of artificial intelligence allow fast processing of fullcolor digital images for the preferred investigations The associated gangue minerals from limestone and coal mines were identified using three different approaches All Novel Methods for Separation of Gangue from Limestone and Coal
Road performance analysis of cement stabilized coal gangue mixture
2021年11月30日 In order to solve the environmental pollution of coal gangue and the shortage of aggregate resources in road engineering, waste coal gangue is used as road base material instead of natural stone 2023年11月20日 Coal gangue (CG) is an environmental waste that faces an urgent demand for disposal in China The utilization of CG in construction materials has broad application prospects and gained increasing interest However, the poor compatibility of polycarboxylate superplasticizer (PCE) with CG powder hinders its efficiency in a wide range of applications Here, this paper An alternative approach to improve the compatibility of PCE in 2023年10月12日 Coal gangue sorting is a necessary process in coal mine production, and removing gangue is the basis for the coal production of clean energy; it is also an important approach to reduce the cost of washing, improve the grade of finished coal and increase the economic efficiency of coal mining enterprises For the problem of high similarity and low Coal Gangue Target Detection Based on Improved YOLOv5s MDPI2024年3月11日 Although the calcinationbased activation of coal gangue is important for its valorization in the form of cementitious materials, the related works mainly focus on highquality coal gangue, neglecting its lowquality counterpart To bridge this gap, we herein conducted the pilotscale suspension calcination of lowquality coal gangue; explored the effects of Activation of LowQuality Coal Gangue Using Suspension MDPI
Detection of Coal and Gangue Based on Improved YOLOv8 MDPI
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 different densities under two diverse lighting environments were collected Then the Laplacian image enhancement algorithm was 2023年5月25日 The treatment and utilization of coal gangue, one of the main solid wastes produced during coal mining, are of great significance in environmental protection and resource development In the contemporary context of the carbon neutralization strategy, due to the property of the carbon in coal gangue, it is necessary to be cautious of the carbon effect during Lowcarbon utilization of coal gangue under the carbon 2024年4月1日 Energy and environmental concerns pose significant threats to the survival of humanity and the Earth's ecosystem The escalation of greenhouse gas emissions, predominantly CO 2 and other gases, due to human activities in contemporary industrialized societies, has led to an increased frequency of natural disasters and extreme weather events, as well as a rise in Environmental hazards and comprehensive utilization of solid waste coal 2021年8月2日 Coal gangue is a type of solid waste produced in the coal mining and washing processes The global coal mining industry produces approximately 350 million tons of inactive gangue each year, and the accumulated coal gangue in China alone amounts to 60 billion tons [1], [2], [3]In Spain, about 2 million tons of coal mine waste were produced in 2009Effect and mechanism of coal gangue concrete ScienceDirect
Reusing waste coal gangue to improve the dispersivity and
2023年6月10日 Reusing waste coal gangue to improve the dispersivity and mechanical properties there is a wide distribution overlap of dispersive soil and coal gangue in a database was established On this basis, a unique machine learning method was developed via combining the Logic Development Algorithm (LDA) with the ensemble 2006年4月1日 PDF A coal preparation plant typically operates with multiple cleaning circuits to clean individual size fractions of runofmine coal Coal Find, read and cite all the research you need on (PDF) Coal preparation plant optimization: A critical review of 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 ecological and engineering Investigating the compaction and the mechanical behaviors of coal 2023年10月12日 Coal gangue sorting is a necessary process in coal mine production, and removing gangue is the basis for the coal production of clean energy; it is also an important approach to reduce the cost of (PDF) Coal Gangue Target Detection Based on Improved YOLOv5s
A fast recognition method for coal gangue image processing
2023年5月24日 This paper proposes a modified YOLOv4 model, named GYOLO, for coal gangue recognition with the aim of reducing model parameters, improving calculation speed, and reducing equipment requirements To achieve this, the paper optimizes the feature extraction network structure by using linear operation instead of traditional convolution to obtain 2021年9月6日 Coal gangue is the main solid waste produced in coal mining and preparation, and its resource utilization has become a hot issue in countries that use coal as the main source of energy [1], [2]An effective resource utilization method is using coal gangue instead of crushed stone to prepare concrete, which can not only solve the environmental problems caused by The influence of fly ash content on ITZ microstructure of coal gangue 2022年1月21日 The feasibility of modified tabia (MT) with compositeactivated coal gangue (CACG) as the subgrade material of lowgrade highways was experimentally investigated A composite activation method was employed to improve the pozzolanic activity of coal gangue The effect of CACG content on the mechanical properties of MT was investigated through a series Performance and Hydration Mechanism of Modified Tabia with2020年6月4日 As a massive solid waste, the high valueadded utilization of coal gangue has received more and more attention in China This study focuses on the utilization of coal gangue aggregate in railway engineering for coal transportation passage Coal gangue aggregate was employed as highgrade railway subgrade filler andprepared concrete for roadbed drainage Utilization of Coal Gangue Aggregate for Railway Roadbed
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10月23日 Comments 3: “mixed gangue” (line 17) – It would be helpful to add a few words to what exactly gangue is (ie, it helps improve the first sentence of the introduction if there is a bit of definition provided because not everyone is immediately familiar with coal/ore terminology)Optimization Study of Coal Gangue Detection in Intelligent Coal 2022年2月22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 The identification of coal and gangue and the 2014年7月1日 The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization Industrial development and prospect about comprehensive
Influence of Coal Gangue Powder on the Macroscopic Mechanical
2023年10月3日 Currently, research on coal gangue concrete primarily focuses on the use of coal gangue as recycled coarse aggregates and its incorporation as a gel material in concrete [ 22 30 ] Due to its lightweight and highstrength characteristics, researchers have investigated the crushing of coal gangue for use as an aggregate for recycled concrete2022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 MDPI2023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 Full article: A review of intelligent coal gangue separation 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 Coal Gangue Recognition during Coal Preparation Using an
Biodegradation of organic compounds in the coal gangue by
2023年1月3日 Coal gangue (CG), one of the world’s largest industrial solid wastes produced during coal mining, is extremely difficult to be used owing to its combined contents of clay minerals and organic macromolecules This study explored a novel process of degrading the harmful organic compounds in the CG into humic acid using a biological method characterized 2024年7月1日 Coal gangue, a type of solid waste, is mainly accumulated in the mine areas, negatively causing environmental pollution, land occupation and even structural disasters [1], [2], [3]To address this issue, the most attractive and effective solution to utilize coal gangue is believed to serve as fine and coarse aggregate in producing green concrete in situ, which is Durability performance of BFRPconfined coal gangue concrete