Results 151 to 160 of about 609 (196)
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A review of coal gangue identification research—application to China’s top coal release process
Environmental Science and Pollution Research, 2022Top coal caving is a process for the rational extraction of large amounts of coal resources. However, this process readily causes release of excessive amounts of gangue during the coal release process. The conventional technique, which involves visual inspection, is not only labor-intensive but also can introduce inaccuracies.
Bo Xue
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Symmetry, 2023 Identification of coal and gangue is one of the important problems in the coal industry. To improve the accuracy of coal gangue identification in the coal mining process, a coal gangue identification method based on histogram of oriented gradient (HOG ...
Gang Cheng
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Intelligent photoelectric identification of coal and gangue − A review
Measurement: Journal of the International Measurement ConfederationHongzheng Zhu +2 more
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Coal and gangue identification method based on the intensity image of lidar and DenseNet
Applied Optics, 2021Coal and gangue (rock) identification is the essential process in a coal preparation plant. In an actual coal preparation plant, the existing classification methods have many disadvantages in safety and identification rate. We utilized the echo intensity image (EII) of lidar for coal and gangue identification for the first time, to ...
Jichuan, Xing +4 more
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Research on a Coal Gangue Identification Device
Applied Mechanics and Materials, 2013The paper designed a coal gangue identification device. It firstly proposed to use the guide groove to guide, grayscale sensor to recognize and the corresponding mechanical actuators to realize automatic separation of coal and waste rocks. Compared with other separation device, it firstly put forward solutions to realize the linear arrangement of ...
Gang Feng Zheng +3 more
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Identification and Activation of Coal Gangue and Performance of Limestone Calcined Gangue Cement
2020Gangue, a typical waste associated with the coal mining process in northern China, was characterized before and after thermal treatment by XRF, XRD, TGA-DSC, and SEM. The pozzolanic reactivity of calcined gangue with different calcined temperature was tested by standard mortar strength and R3 calorimetry test.
Bin Wang, Tongbo Sui, Hao Sui
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Image positioning and identification method and system for coal and gangue sorting robot
International Journal of Coal Preparation and Utilization, 2020Accurately positioning and identifying coal and gangue under the heterogeneous and complex scenarios of coal production is a key and difficult problem for coal and gangue sorting robot.
Man Li +3 more
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Adaptive image enhancement and particle size identification method based on coal and gangue
Measurement Science and Technology, 2023Abstract To reduce the influence of material particle size on coal gangue identification, a particle size identification method, and an adaptive image enhancement method are proposed, which can accurately identify the particle size of poorly segmented and mutually blocked materials, effectively reduce the reflection and blur of the image
Qisheng Luo +4 more
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Coal Gangue Image Identification and Classification with Wavelet Transform
2009 Second International Conference on Intelligent Computation Technology and Automation, 2009A novel method of the coal gangue identification and classification is introduced, and the coal gangue image process strategy using wavelet transform is proposed to select the coal gangues out from coal bulk on the mining belt transporter in this paper.
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