Coal Gangue Technology

Coal Gangue Technology

Environmentally friendly utilization of coal gangue as aggregates for

this proposed technology enjoys three benefits 1 cga shotcrete used for the construction of coal mine tunnel underground is free from freeze thaw threatens due to the relatively stable temperatures in tunnels 2 the durability issue of cga shotcrete is concerned less than traditional concrete since that its service life on working face is …

Coal Gangue manufacturers suppliers

China Coal Gangue manufacturers Select 2024 high quality Coal Gangue products in best price from certified Chinese Block Making Machine Block Machine suppliers wholesalers and factory on Zhengzhou Hengxing Engineering Technology Co Ltd Diamond Member

Effect of Concentration and Suspension Agent HPMC on Hindawi

Cemented coal gangue fly ash backfill CGFB mixtures are utilized as the filling materials for backfilling the underground openings in coal mines The freshly prepared CGFB slurries are commonly transported into the gobs through a pipeline The mixture ratio of slurry concentration and suspending agent HPMC plays an essential role in transporting the slurry to goaf smoothly and efficiently

Release characteristics of heavy metals in high sulfur coal gangue

Coal gangue HS CG is the dark gray rock produced during coal mining and washing process and its production is about 10% 15% of coal mining which depends on the geology and mining conditions Zhu et al 2024 Bai et al 2024 Bioresource Technology Reports 2024 M Xin et al Stabilized MSW incineration fly ash co landfilled with

Energies Free Full Text Sulfur Conversion of Mixed Coal and Gangue

The construction of a power plant using a 660 MWe supercritical circulating fluidized bed CFB boiler with co combustion of coal and gangue has been proposed in China Therefore this study simulated the distribution law and transformation mechanism of sulfur containing phases using three low calorific samples of gangue and coal mixtures under different conditions based on the thermodynamic

Energies Free Full Text Image Recognition of Coal and Coal Gangue

Recognizing and distinguishing coal and gangue are essential in engineering such as in coal fired power plants This paper employed a convolutional neural network CNN to recognize coal and gangue images and help segregate coal and gangue

How To Effectively Use Coal Gangue

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

Image Recognition of Coal and Coal Gangue Using a ResearchGate

Recognizing and distinguishing coal and gangue are essential in engineering such as in coal fired power plants This paper employed a convolutional neural network CNN to recognize coal and

Sustainable and clean utilization of coal gangue activation and

Coal gangue a by product produced during the coal processing has a serious impact on the environment Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value In this study the formation mechanism and influencing factors of coal gangue based silicon fertilizer was studied using XRD and FT IR measurement technologies

Fast identification model for coal and gangue based on the improved

The main ways of ganguesorting technology are manual sorting moving sieve jigging separation [ 3 ] heavy medium separation [ 4] and selective fragmentized separation [ 5 ] Among them the manual sorting is the most traditional and frequentlyused which relies on the visual and experience of transport workers see Fig 1

Coal Gangue Identification Based on Improved YOLOv5s Algorithm

Migration learning based GoogLenet coal gangue image recognition Software Guide 2024 18 12 183 186 [3] Ma Jun Yu Zhongming Shu Shihai et al Environmental hazards of coal gangue in mining areas and management measures Development status and application prospect of dry coal beneficiation technology in China Coal Processing

Experimental Study on the Characteristics of Activated Coal Gangue and

Coal gangue based geopolymer CGGP is one of the hot spots existing in the recycling of coal gangue resources due to its good comprehensive mechanical properties However the coal gangue structure is stable and reactivity is poor so the coal gangue needs to be activated before utilization In this paper the microstructure changes of activated coal gangue by different mechanical and thermal

Coal gangue detection and recognition algorithm based on deformable

Focusing on various problems in coal gangue detecting and recognising algorithms such as limited receptive field slow convergence rate and low accuracy of small particle recognition this paper proposes a coal gangue detection and recognition algorithm based on deformable convolution YOLOv3 DCN YOLOv3

Materials Free Full Text Application of Coal Gangue as a Coarse

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

The comprehensive utilization of the coal gangue ResearchGate

Coal mine gangue was chosen as the research object and its particle size and chemical components at various crusher discharge settings were examined through screening grinding

Cascade network for detection of coal and gangue in the production

The use of image processing to recognize coal and gangue is safer and more convenient than traditional coal washing methods since it does not require complex equipment or water for heavy media based techniques and is also preferable to other advanced recognition methods such as X rays [ 3] or three dimensional laser scanning [ 4 ]

Integrated green mining technology of coal mining gangue washing

Gangue washing technology Because of the deep mining depth in Tangshan Mine the raw coal is washed underground to reduce energy consumption thus increasing the actual production capacity At present the underground high precision washing technology consists of new jigging dense medium shallow trough and TDS separation Zhang et al 2024

CN113390909A Coal and gangue identification method based on X ray

The invention discloses a coal and gangue identification method based on an X ray diffraction technology which comprises the following steps s1 collecting XRD X ray diffraction spectrums of the coal and the coal gangue by using an X ray diffractometer s2 carrying out noise reduction pretreatment on the XRD patterns of the collected coal and coal gangue s3 extracting the identification

Study on condition analysis and temperature prediction of coal

Guo et al Ambient PM and related health impacts of spontaneous combustion of coal and coal gangue Environ Sci Technol 55 9 5763 2024 and coal spontaneous combustion defense technology have been studied and analyzed In this paper we analyze the characteristics of nine stages of the oxidation process of coal

An efficient method for recognition of coal/gangue with thermal imaging

Further comparative study revealed that coal and gangue can obtain the optimal contrast image when the water temperature is 55℃ for 15s with air motion intervention which might be a novel way to increase the efficiency of coal and gangue identification in coal mines KEYWORDS Coal gangue thermal image temperature difference recognition efficiency

Synthesis of zeolite SSZ 13 from coal gangue via ultrasonic

As increased emissions and ineffective treatment coal gangue not only occupies land but also pollutes the waterbody and farmland Using coal gangue as raw material to synthetize zeolite has been considered as an environmentally friendly and effective alternative to solve the issues of accumulation and pollution which also improves the added

Research on the fine identification of coal types and gangue based on X

Therefore this paper takes the main coal types including one third coking coal gas coal and gangue in Huainan coalfield as the research object and proposes a method to identify coal types and gangue The ADXRD patterns and EDXRD patterns of the samples were obtained through X ray diffractometer and EDXRD test platform respectively

How to Turn the Coal Gangue Into a Treasure Hongxing Machinery

Impact crusher crushes coal gangue by use of the impact or striking energy When coal gangue material enters the plate hammer zone of impact crusher it is hit and impacted by high speed rotating plate hammer Then it is constantly thrown to the counterattack device mounted on the top of the rotor

Research of Comprehensive Utilization of Coal Gangue

In addition a huge amount of wastes from coal mines represented by gangue can be produced forming many gangue hills on the surface According to incomplete statistics at present the cumulative

Trace Elements in Coal Gangue A Review IntechOpen

Coal gangue is one of the largest industrial residues It has high ash content low carbonaceous content and heating value Meanwhile it has some trace elements Large quantities of coal gangue cause serious environmental problems by polluting the air water and soil as well as occupying a tremendous amount of land

Coal Gangue Crusher Coal Gangue Production Line Dingli crusher

Coal gangue mined from coal mine is concretely transformed into crushing site and shaped into size by feeding crushing and screening machines and then added some other materials to form a new type of energy saving materials with coal gangue brick machine Investment Prospect Environment protection is China s basic national policy

Coal Gangue Sorting System HXS Intelligent Dry Type Separator

Coal Gangue Sorting System HXS Intelligent Dry Type Separator The coal and gangue are automatically analyzed and identified by X ray imaging system and control the high pressure wind to blow the target materials away Selected Mining Equipment Manufacturer Contractors Site map 86 28 83311885 sales English Chinese Russian

Multi Arm Global Cooperative Coal Gangue Sorting Method Based on

With the development of machine vision and robot technology image processing technology and intelligent control technology the use of robots to sort coal gangue has become a new research direction [3 4 5] The process of sorting coal gangue with robots mainly involves two parts recognition and tracking/grasping

Three Bin Fly Ash Ball Mill High Yield Low Consumption Coal

Three Bin Fly Ash Ball Mill High Yield Low Consumption Coal Gangue Powder Ball Mill Find Details and Price about Three Bin Fly Ash Ball Mill Coal Gangue Powder Ball Mill from Three Bin Fly Ash Ball Mill High Yield Low Consumption Coal Gangue Powder Ball Mill Zhengzhou Hengxing Engineering Technology Co Ltd

Utilization of coal gangue as coarse aggregates in structural concrete

Most of the related researches focus on the material properties of coal gangue concrete It is expected that the performance of concrete filled steel tubular stubs with CGC is better than that of reinforced concrete stubs with CGC In this paper coal gangue is utilized as a replacement of coarse aggregates in different types of structural stubs

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