coal gangue mine application

coal-gangue

Gangue, also called coal gangue, is the solid waste discharged in coal mining process and coal washing process, black rock harder than coal. Its carbon content is low and exists along with coal seam. Gangue could be found in roof, bottom board, inter-layer, and it could be selected in washing process. The main ingredient are Al2O3, SiO2, Fe2O3 ...

Intelligent Detection of Foreign Matter in Coal Mine …

2022-7-5 · This paper applies the CenterNet target detection algorithm to the foreign object detection of coal conveying belts in coal mines. Given the fast running speed of coal conveying belts and the influence of background and light sources on the objects to be inspected, an improved algorithm of CenterNet is proposed. First, the depth separable volume is introduced. …

The Sustainable Utilization of Coal Gangue in Geotechnical …

Among coal mining-related 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 CG utilization and potential future application is gaining paramount importance.

Application and Research of Gangue Partial-Filling Mining …

2022-3-21 · Coal gangue produced during coal production not only poses a serious threat to the ground environment but also imposes serious economic burdens on the mine. The partial-filling mining (PFM) method proposed in this paper can make full use of coal gangue and is of great significance to the prevention and control of water disasters at the working face. The specific …

Progress of Purification and Applications of Coal Gangue

But recent application of coal gangue may always restrict to individual components,so the utilization rate is not so satisfactory. To actively develop other useful elements and advanced industry is a new trend for the application of coal gangue. ... Application of arbuscular mycorrhizas in ecological restoration of areas affected by coal mining ...

Green synthesis of ceramsite from industrial wastes and its …

2  · The accumulative amount of coal gangue is largely increasing associated with coal mining activities, becoming one of the largest industrial residues (Li and Wang, 2019). Copper smelting slag is a waste source generated from copper pyrometallurgy production which typically contains Fe 2 O 3, SiO 2, and Al 2 O 3 ( Zhou et al., 2021 ).

Coal gangue detection and recognition algorithm based …

2021-9-8 · Online detection, identification and sorting of coal gangue is an important part of coal mine intelligentisation [1-3]. In coal mining, a large amount of coal gangue is mixed with raw coal, and it easily causes pollution and reduces the raw coal''s combustion heat; therefore, gangue separation is an essential step in improving the quality of raw ...

Application of Coal Gangue as a Coarse Aggregate in …

Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. ... Application of Coal Gangue as a Coarse Aggregate in Green Concrete Production: A Review Materials (Basel). 2021 Nov 11;14(22):6803. doi: 10.3390/ma14226803 ...

A Coupled Thermo-mechanical Damage Modeling …

2019-9-17 · Recently, cemented coal gangue-fly ash backfill (CGFB) materials are introduced and used for coal mine waste management and ground control. CGFB is a heterogeneous material produced by mixing coal gangue (CG), fly ash (FA), binder (e.g., Portland cement) and water with a solid percentage normally between 70% and 85% [1,2,3,4].The CGFB materials are filled in …

Carbon Footprint Analysis of Coal Gangue in Geotechnical …

2019-9-28 · Coal gangue is a mine waste generated during the mineral processing phase of coal production. With the surge in demand for coal in thermal power, steel and cement generation industries, the rate of coal gangue generation has reached unprecedented heights. With the realisation of potential threat posed by coal gangue, researchers have made attempts to …

Feasibility study on the application of coal gangue as …

2017-5-1 · The permeability of coal gangue is under 1 × 10 −7 cm/s with void ratio less than 0.6. • The sorption capacity of the coal gangue is comparable to other natural clays. • The leaching behavior of the coal gangue meets the regulatory requirements. • The coal gangue can be reused as liner material to conserve natural clay resources.

Influence of coal gangue mulching with various …

2021-7-28 · Overall, to enhance the soil water storage capacity in mining areas, the results suggest that coal gangue mulching with a thickness of 8–16 cm and particle size range of …

How To Effectively Use Coal Gangue?

2021-10-13 · There are several ways to use: 1. Recovery of coal and pyrite: Through a simple process, good coal is washed from coal gangue, low-quality coal is selected from it through screening, and pyrite is selected at the same time. Or recover pyrite, mixed coal and middling coal from the jig used for coal preparation ─ ─ plane shaker process.

Application and Research of Gangue Partial-Filling …

2022-3-21 · Coal gangue produced during coal production not only poses a serious threat to the ground environment but also imposes serious economic burdens on the mine. The partial-filling mining (PFM) method proposed in this paper can make full use of coal gangue and is of great significance to the prevention and control of water disasters at the ...

Coal Gangue and its Application Research in Building …

2016-9-1 · Using coal gangue as aggregates to make concrete not only solves the environmental problems caused by the heap of gangue, but also reduces the demand for sand and gravel in concrete production ...

Ultrafine Coal Gangue Crusher

Crushing Gold Mine Plant Price In Australia 11th Sep 2021. Nov 13, 2020 The Boddington Gold Mine (BGM), Australia''s largest gold-producing mine, is located 130km south-east of Perth in Western Australia. The $2.4bn project was initially a three-way joint venture between Newmont Mining, AngloGold Ashanti and Newcrest Mining

A review of the synthesis and application of zeolites from …

2020-11-11 · Zeolite derived from coal-based solid wastes (coal gangue and coal fly ash) can overcome the environmental problems caused by coal-based solid wastes and achieve valuable utilization. In this paper, the physicochemical properties of coal gangue and coal fly ash are introduced. The mechanism and application characteristics of the pretreatment processes for …

Removal and kinetics of cadmium and copper ion …

2022-7-4 · Coal gangue is an inevitable associated waste in the coal mining and washing process and a hazardous and complex solid. The average gangue discharge rate (the ratio of coal gangue discharge to total coal production) is approximately 10 ~ 20% (Cong et al. 2016), and gangue is the largest solid waste in output, accumulation, and area covered.. According to statistical data …

Research and application of coal gangue separation …

Abstract: To solve the problem of environment pollution caused by coal gangue stacking,coal gangue from Datong Tashan Coal Mine was chosen as the research object. Based on the analysis characteristic,a feasible technology to separate coal gangue from kaolin rock was studied. The results show that,with the movable-bed jig separation process,kaolin rock …

coal crusher introduction

Coal briquetting machine is to press various kinds of coal materials into solid briquettes with high density, that can be easily transported and reloaded. The compressed materials can be anthracite coal, bituminous coal, coal sludge, brown coal, lignite, E.P Machinery supplies different models of coal powder crusher from 1-50 tons/h . Get Price

Materials | Free Full-Text | Application of Coal Gangue as a …

2021-11-11 · Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. The physical and chemical properties of rock and spontaneous-combustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete. Coal …

Materials | Free Full-Text | Application of Coal Gangue as a …

Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. The physical and chemical properties of rock and spontaneous-combustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete. Coal gangue concrete is not …

Application of Coal Gangue as a Coarse Aggregate in …

2021-11-11 · Along with the excavation and washing of coal in the production process, large amounts of rock-like coal gangue (CG) accompanying the carboniferous beds are discharged as industrial residues, accounting for around 10–20% of the coal production [2,3,4] the largest coal production country, namely China, more than 700 million tons of coal gangue was expected in …

Coal Gangue and its Application Research in Building …

The current statistics show coal gangue discharge is 100 million tons per year, and the accumulated discharge has been as high as 4.5 billion tons. It comprises the largest portion of solid waste in our country. Its storage not only requires valuable land resources, but also pollutes the air, water and soil of the storage sites, resulting in waste of resources.

Application and Development on Coal Mine Backfill …

place-changing mining method is used and coal pillars are reserved between two roadways and the recovery ratio is normally less than 50%. One of examples of such mining method is the Xingdong coal mine, Xingdong coal mine is located in the suburban district of Xingtai City, and gangue waste is not allowed to be deposited on the surface.

Application and technology research of coal gangue filling ...

:. Based on the research of relatively mature gangue backfill mining technology, analyzed the key equipment, system and technology principle that used the coal gangue separation method, put forward the basic principle of comprehensive mechanical solid filling mining technology of underground coal gangue separation, the use of coal ...

Coal Gangue Applied to Low-Volume Roads in China

2011-1-1 · Coal gangue is a solid waste produced from the production, washing, and selection of coal processes. ... and He, Z. Research of Property and Application of Binder-Stabilizing Local Materials. Research report 200131800045. Ministry of ... Wang, X., and Zhao, B. Paste-Like Self-Flowing Transportation Backfilling Technology Based on Coal Gangue ...

(PDF) Application of Coal Gangue as a Coarse Aggregate …

2021-11-11 · The physical and chemical properties of rock and spontaneous-combustion coal gangue are generally suitable for being used as a coarse aggregate in green concrete. Coal gangue concrete is not rec ...

Coal Gangue Data Set Expansion Method Based on DCGAN

2022-1-14 · An image expansion method based on Deep Convolutional Generative Adversarial Networks (DCGAN), which adds a feature fusion part to the generator network to improve the diversity of the output image, and the loss function is improved to Wasserstein distance to overcome the problem of the disappearance of the generator gradient. Coal gangue …

Utilization of Coal Gangue for Earthworks ...

2021-2-21 · This study aims to quantify the environmental impacts associated with the application of coal gangue (CG) in earthworks by performing carbon footprint analysis (CFA) and cost analysis (CA). An ongoing project of reinforced earthwork construction undertaken by the Government of Telangana, India, has been considered for the CFA and CA of coal ...

Research and Application on Coal Gangue Separation …

Abstract: To solve the problem of environmental pollution of coal gangue heap to produce, in Datong hill mine coal gangue as the research object, on the basis of the characteristics of the analysis and research from the coal gangue in sorting out the included the feasibility of the technology. The research results show that the moving sieve jigging separation process to …

75556 PDFs | Review articles in COAL MINING

Explore the latest full-text research PDFs, articles, conference papers, preprints and more on COAL MINING. Find methods information, sources, …

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