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  • Impact-Crush Separation Characteristics of Coal and

     · Utilizing the difference in hardness coal and gangue can be separated by the impact-crush technology for utilization underground. The influence of hardness and impact velocity on the crush-ratio difference of coal and gangue was studied using an impact-crush separator and was optimized using the orthogonal experiment method.

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  • Recent Patents on Gangue Pneumatic Filling for Coal

    Recent Patents on Gangue Pneumatic Filling for Coal Auger Mining Method. Background With the mining depth and width increasing coal auger mining is prone to collapse accident in the poor existing conditions which reduces the security and reliability of mining workface and wastes the large amounts of coal resources due to the remaining coal

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  • Coal and Gangue Underground Pneumatic Separation Effect

    Coal and gangue underground pneumatic separation is of key importance for green mining. Two kinds of arrangement schemes for high-pressure value used in pneumatic separation system are proposed in this study. Pneumatic separation effects are examined under different arrangement of high-pressure value. Here theoretical pneumatic separation distance formulas of mineral particles affected by

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  • Coal and Coal Gangue Separation Based on Computer Vision

    While coal is the major power source around the globe gangue is unwanted in power plants. Thus separating gangue from coal is a crucial part in the pre-processing step of mining.

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  • Teetered Bed SeparatorGravity Separation Equipment

    The teetered bed slurry separator is mainly composed of material feeding and spreading device disturbing separating room upwardflow injection system cleaned coal flow guiding system density detection device gangue discharging gate control system and so on. 2.Features of TBS 2.1.

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  • China Coal Gangue Coal Gangue Manufacturers Suppliers

    China Coal Gangue manufacturersSelect 2021 high quality Coal Gangue products in best price from certified Chinese Machine Block Machine suppliers wholesalers and factory on Made-in-China

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  • X-ray sorting of minerals-XRT Sorting in Coal and Mineral Ores

     · Based on the sensor technology and X-ray transmission technology the XRT Intelligent Mineral Ore Sorter provides a brand-new solution for mineral ores sorting to remove the waste and coal gangue. The sorting system adopts our unique AI Computer algorithm to recognizes the internal physical characteristics of the extracted materials and sorting

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  • Characterization of dissolved organic matter derived from

     · Organic and nitrogen pollutants in mine water could be removed effectively during the storage and transport of water in a coal mine underground reservoir packed with coal gangue through various water-rock interactions.

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  • Minerals Free Full-Text Co-Disposal of Coal Gangue and

    Coal gangue is a by-product of coal mining and washing and its discharge amount accounts for approximately 10–15 of total coal production 1 2 .The coal gangue dump is formed by the direct storage of coal gangue and occupies a great deal of farmland and arable land resources 1 3 .The active components contained in coal gangue such as combustible carbon pyrite and heavy metal sulphide

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  • Minerals Free Full-Text Co-Disposal of Coal Gangue and

    Coal gangue is a by-product of coal mining and washing and its discharge amount accounts for approximately 10–15 of total coal production 1 2 .The coal gangue dump is formed by the direct storage of coal gangue and occupies a great deal of farmland and arable land resources 1 3 .The active components contained in coal gangue such as combustible carbon pyrite and heavy metal sulphide

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  • Utilization of coal gangue as coarse aggregates in

     · The coal gangue was crushed and sieved according to GB/T for the preparation of ordinary concrete. The particle size of the sieved coal gangue coarse aggregates was in the range of 5 mm–35 mm. The basic physical properties of natural gravel and coal gangue were tested as

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  • Utilization of coal gangue as coarse aggregates in

     · The coal gangue was crushed and sieved according to GB/T for the preparation of ordinary concrete. The particle size of the sieved coal gangue coarse aggregates was in the range of 5 mm–35 mm. The basic physical properties of natural gravel and coal gangue were tested as

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  • Basic Characteristics of Coal Gangue in a Small-Scale

     · The research area is located in the coal gangue yard 1.5 km north of Xieqiao coal mine in Huainan coalfield. Based on the analysis of the image data in Figure1h the size of the coal gangue site is about 960 m2. In view of the fact that the coal gangue covers the

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  • Numerical investigation of failure evolution for the

    Longgu Coal Mine are approximately 1.683 billion tons the designed production capacity is approximately 6 million tons per year and the designed service life is 82 years. Longgu Coal Mine has good development prospects. The coal gangue separation system chamber group in Longgu Coal Mine mainly consists of four super‐large sec-

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  • Assessment of heavy metal in coal gangue distribution

    In order to find the law of heavy metal release and to evaluate the potential ecological risk five kinds of coal gangue at different weathering degrees were collected from a coal mine named Suncun an over 100-year-old mine of Xinwen coal mining field located in Tai an city Shandong Province of China.

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  • Effects of particle sizes on compressive deformation and

    Abstract Broken gangue from the collapsing roof of a longwall coal panel can be used as the backfilling material for goaf backfilling. The particle size gradation has important influence on the compressive deformation of the gangue backfilling material and particle breakage. The compressive deformation of the gangue backfilling materials at 4 different particle size grades is simulated by

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  • CNBAutomatic separator of coal gangue

    The invention relates to an automatic separator of coal gangue which comprises a raw material feeding copper a coal receiving copper a gangue receiving copper a conveying-belt conveyor an identification and separation controlling mechanism and an executing mechanism wherein the conveying-belt conveyer is arranged among the raw material feeding copper the coal receiving copper and the

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  • Automatic Separation System of Coal Gangue Based on

    It is important to separate coal gangue from lump coal during the production of coal mine. The system investigated the fundamental characteristics of coal images and gangue images on the basis of digital image processing technology. Median filter edge extraction and grayscale comparison of coal images and gangue images were successively carried out by the technology of image preprocessing

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  • Separating coal and gangue using three-dimensional laser

     · 1. Introduction. Gangue minerals accounts for between 15 and 20 of raw coal in China (Qian et al. 2007) deed as coal production has increased so has gangue generation by the end of 2009 the total amount of gangue produced added up to 5.0 10 9 t encompassing 40 of the total Chinese solid waste (Miao and Qian 2009).The accumulation of coal gangue not only takes up a great volume

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  • Separating coal and gangue using three-dimensional laser

     · 1. Introduction. Gangue minerals accounts for between 15 and 20 of raw coal in China (Qian et al. 2007) deed as coal production has increased so has gangue generation by the end of 2009 the total amount of gangue produced added up to 5.0 10 9 t encompassing 40 of the total Chinese solid waste (Miao and Qian 2009).The accumulation of coal gangue not only takes up a

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  • Utilization of coal gangue as coarse aggregates in

     · The coal gangue was crushed and sieved according to GB/T for the preparation of ordinary concrete. The particle size of the sieved coal gangue coarse aggregates was in the range of 5 mm–35 mm. The basic physical properties of natural gravel and coal gangue were tested as listed in Table 1

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  • Separating coal and gangue using three-dimensional laser

     · 1. Introduction. Gangue minerals accounts for between 15 and 20 of raw coal in China (Qian et al. 2007) deed as coal production has increased so has gangue generation by the end of 2009 the total amount of gangue produced added up to 5.0 10 9 t encompassing 40 of the total Chinese solid waste (Miao and Qian 2009).The accumulation of coal gangue not only takes up a

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  • Research Article Coal and Gangue Underground

     · separation for coal and gangue is an indispensable process of mine production and has great signi cance for coal preparation. Gangue from underground separation can be used for lling mined-out areas improving the quality of rawcoal decreasingthecostofpreparation savingtransport capacity and reducing the amount of waste polluting the

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  • Coal and Coal Gangue Separation Based on Computer Vision

    While coal is the major power source around the globe gangue is unwanted in power plants. Thus separating gangue from coal is a crucial part in the pre-processing step of mining.

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  • mining coal gangue plantlime stoneMining

     · Quarry coal gangue crusher. coal gangue pstone In india quarry crusher. stone crusher for coal mine. coal mining in indonesia crusher for coal stone crusher it was hoped that the new law on mineral and coal mining of 2009 jaw crusher or cone crusher are suitable primary crushing machine for coal mining fixed crusher is a stone crusher so there is

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  • Monitoring and Assessment of Cemented Paste Backfill

     · Cemented coal gangue paste backfill (CCGPB) containing coal gangue and fly ash is a backfilling technique newly developed in coal mines in China that allows environmentally hazardous products such as gangue and fly ash to be reused in underground stopes. CCGPB materials provide efficient ground support for the caving of strata and reduce surface subsidence.

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  • The Geological Environment Governance of the Coal

    Combining the governance situation of the main coal gangue heap in Shanxi LuAn group aiming at different geographical conditions and governance effect of subsidence basin water area caused by coal gangue heap and coal mining at WangZhuang coal mine based on the concept of ecological management in mines the paper probes into the geological environmental engineering technology of

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  • Investigation of hydraulic-mechanical properties of paste

     · 2.1.1. Coal Gangue The coal gangue used in this study was obtained from a coal mine waste dump. Typically the grain size of coal gangue (>50 mm) is too large to use for CPB which is one significant difference from the tailings grain size (<2 mm) 40 . To

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  • The application of dense medium in an enhanced gravity

     ·  article osti_ title = The application of dense medium in an enhanced gravity separator for fine coal cleaning author = Honaker R Q and Singh N abstractNote = Dense-medium separators have proven to be the most efficient processes for removing the undesirable gangue material from run-of-mine coal. The application of high

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  • Study on Crushing and Separation of Coal and Gangue

    In this paper the pressurization of irregular ores was first discussed so as to make an analysis on the causes for the great difference between measured result and actual ores and then a preliminary pressure experiment was made on a certain quantity of coal and gangue samples extracted from Du erping Coal Mine through electronic universal testing machine.

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  • Coal Gangue Sorting System HXS Intelligent Dry Type

    HXS Intelligent Dry Type Separator is a coal sorting equipment based on the advanced Imaging technology and AI technology. The coal and gangue are automatically analyzed and identified by X-ray imaging system which can obtain the material characteristics and control the high-pressure wind to blow the target materials away.

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  • China Coal Gangue Coal Gangue Manufacturers Suppliers

    China Coal Gangue manufacturersSelect 2021 high quality Coal Gangue products in best price from certified Chinese Machine Block Machine suppliers wholesalers and factory on Made-in

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  • Pollution extents of organic substances from a coal

     · This paper addresses the distribution and occurrence of harmful organic substances in coal gangue dump from Jiulong Coal Mine and its influence on the environment. The samples were taken from the coal gangue dump and coal waste water stream and analyzed by organic geochemical methods. The results indicate that the coal gangues contain abundant

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  • Environmental-friendly coal gangue-biochar composites

     · Coal gangue as a solid waste generated during coal mining and washing not only encroaches on a large number of land resources but also poses certain risks to the environment. It is reported that the cumulative amount of coal gangue piled up in China has reached 6 billion tons and the annual discharge amount is about 500–800 million tons.

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  • Basic Characteristics of Coal Gangue in a Small-Scale

     · The research area is located in the coal gangue yard 1.5 km north of Xieqiao coal mine in Huainan coalfield. Based on the analysis of the image data in Figure1h the size of the coal gangue site is about 960 m2. In view of the fact that the coal gangue covers the

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  • Underground pneumatic separation of coal and gangue

     · The process of pneumatic separation which is based on machine vision is shown in Fig. 1.Firstly materials of coal and gangue will be sent into the roll-type crusher 3 which will be crushed under 100 mm. Coal particles which diameter is less than 50 mm will transport to coal bunker through conveyor belt al and gangue particles having a diameter between 50 mm and 100 mm will

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  • Integrated green mining technology of "coal mining

     · According to the gangue source distribution of backfilling coal mining area in Tangshan Mine the work arranges three gangue treatment systems including the surface solid waste treatment system for surface gangue the gangue driving station system for underground tunneling gangue and the raw coal separation system for underground washing gangue.

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  • X-ray Coal gangue Optical Sortercolorsorter-cn

    Coal mine dry separator photoelectric intelligent dry coal separator is a dry coal preparation equipment based on advanced imaging and artificial intelligence technology. Using the material characteristics obtained by the x-ray imaging system coal and coal gangue are automatically analyzed and identified and high-pressure wind is controlled

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  • CNBDown-hole gross coal dirt-discharging

    An underground gross coal gangue removal and mine water treatment combined process is characterized in that the process comprises two parts gangue removal operation from lump coal and mine water solid-liquid separation operation wherein the gangue removal operation from lump coal comprises screening crushing and separation steps and the mine water solid-liquid separation operation

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  • Three Products Coal Slurry SeparatorHOT mining

    The new product Three Products Separator (TPS) is the equipment based on ordinary TBS and using two stage separation to realize more efficient coarse coal slurry separation. It makes the result of coarse coal slurry separation more precise especially when the coal quality is poor TPS has incomparable superiority than traditional TBS.

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  • Optimizing the formulation of coal gangue planting

    Abstract With the development of China s coal industry coal gangue has become one of the most extensive solid wastes. The collection of soil from other places for land reclamation has become a commonly used technology for ecological restoration of coal-mining areas in China. The purpose of this study was to use coal gangue as a new type of planting substrate component with the goal of

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