منزل •the application of coal gangue

the application of coal gangue

  • Effect and mechanism of coal gangue concrete modification ...

    Fly ash (FA) and gangue are common solid wastes. In this study, coarse aggregates were replaced with coal gangue at a constant substitution rate of 40% to promote the application of coal gangue in concrete production. The modification effect of FA content on the working and mechanical properties of coal gangue concrete (CGC) and its modification mechanism were revealed.

  • [PDF] Experimental Study and Application of Rheological ...

    From the perspective of resource recovery and environmental protection, coal gangue-fly ash cemented backfill coal mining has become an important direction for the green development of coal mines in recent years. Analysis of the rheological parameters of backfill slurry is the basic principle to design a backfill pipeline system. Coal gangue-fly ash backfill slurry has a mass concentration of ...

  • Materials | Free Full-Text | Study on Crack Development ...

    Some scholars have studied the application of coal gangue in road construction and found that coal gangue has a high bearing capacity, which can meet the requirements of road construction materials . Coal gangue also contains many high valence cations, which can react with low valence cations in expansive soil to form more stable compounds [ 31 ].

  • coal-gangue - WinnerMac

    Application Fields of Coal Gangue Gangue is mainly applied in gangue cement producing, lightweight aggregate of concrete producing, and refractory brick material producing. In addition, it could be used in coal recycle process, coal and coal gangue power generation, crystallization of aluminum chloride and sodium silicate production and ...

  • Coal Gangue and its Application Research in Building ...

    And then applications of coal gangue in cement-based materials and new wall materials are illustrated as examples of application of coal gangue in building materials. This section is composed of the following particular aspects: 1) concrete application: replacement of cement by 20% coal gangue can effectively extend the setting time, increase ...

  • Modification of waste coal gangue and its application in ...

    We developed a new calcination method to convert coal gangue (CG), a common waste generated from coal production process, into a modified form, which could be used as an adsorbent to remove Mn(2+) from aqueous solution. Sodium tetraborate (Na2B4O7·10H2O) was …

  • Application of Self-Drilling Anchor on Coal Gangue Slope ...

    In the reinforcement of coal gangue slope treatment, it is difficult for hole and construction with traditional method, self-drilling anchor method was adopted, Slope stability safety factor was calculated with slope stability analysis software under coal gangue slope and self-drilled anchor reinforcement coal gangue slope, and finally the anchor pipe processing technology, construction ...

  • Experimental Study and Application of Rheological ...

    From the perspective of resource recovery and environmental protection, coal gangue-fly ash cemented backfill coal mining has become an important direction for the green development of coal mines in recent years. Analysis of the rheological parameters of backfill slurry is the basic principle to design a backfill pipeline system. Coal gangue-fly ash backfill slurry has a mass concentration of ...

  • Global and Chinese Coal gangue Industry, 2018 Market Rese...

    Global and Chinese Coal gangue Industry, 2018 Market Research Report has complete details about market of industry, analysis and current trends. The 'Global and Chinese Coal gangue Industry, 2013-2023 Market Research Report' is a professional and in-depth study on the current state of the global Coal gangue industry with a focus on the Chinese market.

  • Application of Hilbert-Huang Transform to Vibration Signal ...

    In this paper, a new method of vibration signal analysis of coal and gangue based on Hilbert-Huang transform is presented. Empirical mode decomposition algorithm was used to decompose the original vibration signal of coal and gangue into the intrinsic modes for further extract useful information contained in response signals under complicated environment.

  • Application of Rough Set Theory in Coal Gangue Image ...

    Abstract: A novel application of rough set theory in the coal gangue image process is introduced in this paper. Based on rough set theory, the coal gangue image process strategy is proposed to select the coal gangues out from coal bulks on the coal belt transporter.

  • Feasibility study on the application of coal gangue as ...

    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.

  • Comprehensive utilization and environmental risks of coal ...

    Consequently, it is of great significance to develop coal gangue concrete technology for increasing the ratio of coal gangue in cement and concrete applications. With respect to the agricultural application, the nature of the coal gangue, the soil type and the crop species show a relationship with the application of coal gangue as soil amendment.

  • Research Article Application of EMD-Based SVD and SVM to ...

    When coal and gangue fall down and shock the tail boom, the acceleration sensors, which are installed on the hydraulic support, acquire vibration signals fromthesteelplate[ ].. . Feature Extraction of Coal-Gangue Vibration Signals. As anexample,twodi erentvibrationsignalsoftop-coalcaving and coal-gangue caving are chosen for further analysis. e

  • Extraction of alumina from alumina rich coal gangue by a ...

    1. Introduction. Coal gangue is an industrial solid waste produced by coal mining and processing [1–3].The average production of gangue accounts for 10–15% of raw coal production [4,5], making coal gangue one of the biggest solid wastes in China.At present, utilization ratio of coal gangue can reach about 60% in some countries.

  • Coal gangue detection and recognition algorithm based on ...

    The YOLOv4 network correctly detected coal and gangue of different sizes, but for the detection of large-sized coal and gangue (e.g. third picture with a size of 6–8 cm and the second and third pictures with a size of 10–12 cm), it was prone to local misdetection or repeated detection.

  • Application of Rough Set Theory in Coal Gangue Image ...

    Home Browse by Title Proceedings IAS '09 Application of Rough Set Theory in Coal Gangue Image Process. ARTICLE . Application of Rough Set Theory in Coal Gangue Image Process. Share on. Authors: Xian-Min Ma. View Profile, Che Liang. View Profile. Authors Info & Affiliations ;

  • coal gangue_coal gangue

    An example of coal gangue roadbed construction ; Experimental research on coal gangue paste filling material ; The application of coal gangue used as road base material ; Properties of polypropylene filled with …

  • Preparation and application of alkali-activated materials ...

    The following is an attempt to investigate CG and WG as novel precursors for preparing AAMs in engineering applications. 4. Coal gangue (CG) CG is a complex solid waste left in the process of coal mining which produces one of the largest amounts of industrial wastes in the world.

  • Progress of Purification and Applications of Coal Gangue ...

    coal gangue, as one of the largest industrial solid wastes discharged during coal production has caused serious environmental pollution. However, the utilization level of coal gangue is not the same in different countries. Through purification and activation,the utilization rate of coal gangue could increase gradually,while bioleaching method can also relieve the pollution in some degree.

  • Application Fields And Characteristics Of Coal Gangue ...

    Application Fields And Characteristics Of Coal Gangue Machine-made Sand. . Coal gangue is one of the largest industrial solid wastes produced and discharged in my country. Its composition and properties are similar to those of sand and gravel. Using coal gangue as raw material for machine-made sand can not only expand the source of ...

  • Carbon Footprint Analysis of Coal Gangue in Geotechnical ...

    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 explore many new avenues of …

  • Utilization of Coal Gangue Aggregate for Railway Roadbed ...

    The application of coal gangue near the railway line not only solved the problem of aggregate shortage in engineering construction, but it also consumes the coal gangue waste and leads to huge social benefits. As a massive solid waste, the high value-added utilization of coal gangue has received more and more attention in China. ...

  • Application of Hilbert-Huang Transform and SVM to Coal ...

    Coal gangue Interface detection (CGID) is not yet been solved on fully mechanized mining face. The working procedure of top-coal caving is programming controlled by electro hydraulic system, which determines coal caving time, recovery ratio of top-coal and the percentage of gangue content. To improve the coal recovery ratio, lots of

  • Reutilisation of coal gangue and fly ash as underground ...

    The coal gangue and fly ash used in the experiments were collected from a gangue dump and a power plant in the Coal Mine, respectively. In practical applications, due to the limitations of the backfill process and equipment, only gangue with a particle size of 50 mm or less is generally used for backfill (Li et al., 2017, Li et al., 2017). ...

  • A coupled THMC modeling application of cemented coal ...

    Cemented coal gangue-fly ash backfill (CGFB) is prepared by mixing coal gangue, fly ash, cement and water. The CGFB mixtures are filled into mined-out areas of coal mines for ground control and waste disposal. Once placed underground, the performance of CGFB is subjected to the thermal (T), hydraulic (H), mechanical (M) and chemical (C ...

  • Feasibility study on the application of coal gangue as ...

    The coal gangue used in this study was obtained from a coal field in Yulin, Shanxi Province, China. Before the permeability and batch sorption tests, the coal gangue was oven-dried at 105 °C, cooled to room temperature, and ground to pass a mesh with opening size of 1 mm (Fig. 1a). Table 1 summarizes the geotechnical properties and chemical composition of the coal gangue, and …

  • What is the application of coal gangue crusher? - ...

    Reply: Hi Marlon. Thank you for your question. Coal gangue crusher with features of large capacity and low noise can be widely used for crushing coal cinder, slag, shale, coal gangue and construction waste, which solves the problem about using gangue and cinder as the additive and internal fuel for the brickyard, and using gangue and shale to produce standard brick and air brick.

  • Utilization of Coal Gangue Aggregate for Railway Roadbed ...

    First, the basic properties of coal gangue such as particle size distribution, ignition loss, strength change under water softening, and compression performance were measured. Then, the technology to use coal gangue as filler in railway subgrade was put forward based on a real engineering application with the Jingang coal-carrying railway ...