Experimental Study on the Characteristics of Activated Coal Gangue and Coal Gangue-Based Geopolymer
Energies, 2020 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.
Weiqing Zhang +2 more
exaly +5 more sources
Design of separation system of coal and gangue
Gong-kuang zidonghua, 2018 In view of problems of high cost, high consumption of natural resources and serious environmental pollution existed in common coal preparation methods and X-ray coal preparation method was easy to occur identification errors for different thickness of ...
YANG Huigang +4 more
doaj +3 more sources
X-ray transmission intelligent coal-gangue recognition method
Gong-kuang zidonghua, 2022 The coal-gangue image recognition is an important part of coal-gangue separation technology based on pseudo dual energy X-ray transmission (XRT). However, it is difficult to segment the coal-gangue image due to the close proximity or occlusion of coal ...
WANG Wenxin +4 more
doaj +2 more sources
Experimental study on microwave propagation characteristics of different coal-gangue mixtures [PDF]
Meitan kexue jishu, 2023 The problem of coal-gangue identification is one of the technical problems that have not been effectively solved for a long time in the coal industry. By analyzing the characteristics and limitations of existing coal-gangue identification methods, the ...
Lei SI +5 more
doaj +2 more sources
Mechanism on Activation of Coal Gangue Admixture
Advances in Civil Engineering, 2021 Coal gangue, an industrial waste, is rich in silicon and aluminum phase and may be used as a mineral admixture in concrete after moderately stimulating activity, allowing for efficient solid waste utilization. This study used a mortar strength and activity evaluation method to investigate single or compound activation methods to find the optimum ...
Jixi Chen +3 more
openaire +3 more sources
Study on the Failure Characteristics of Coal Wall Spalling in Thick Coal Seam with Gangue
Advances in Civil Engineering, 2020 Coal wall spalling is one of the main factors restricting the safe and efficient mining of thick coal seam, and the gangue has an important impact on the coal wall spalling.
Guosheng Li +3 more
doaj +2 more sources
Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete
Advances in Materials Science and Engineering, 2020 In order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop weight impact test, and the Split Hopkinson Pressure Bar (SHPB) test were ...
Zhishu Yao +4 more
doaj +2 more sources
Coal gangue recognition based on spectral imaging combined with XGBoost.
PLoS ONE, 2023 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 imaging and Extreme Gradient Boosting (XGBoost).
Minghao Zhou, Wenhao Lai
doaj +3 more sources
Application and prospect of coal gangue slurry filling technology [PDF]
Meitan kexue jishuIn order to realize in-situ, green and large-scale disposal of coal gangue, coal gangue slurry filling technology, as a new filling technology, has been rapidly developed and applied in recent years.
Lei ZHU +6 more
doaj +2 more sources
Coal Gangue Ecological Matrix Coupled with Microalgae for Soil Improvement and Plant Growth in Reclaimed Mining Areas [PDF]
BiologyCoal gangue, a primary byproduct of coal mining, causes significant environmental harm due to its improper utilization. This research proposes integrating microalgae with coal gangue-derived ecological products to improve soil conditions in ecologically ...
Shuyu Yu +6 more
doaj +2 more sources