Results 21 to 30 of about 2,675 (183)
Research progress and key technologies of intelligent coal-gangue sorting robot
Gong-kuang zidonghua, 2022 The gangue is wrapped by slurry in underground coal mine, which causes difficult coal-gangue recognition and sorting. The underground working space is narrow, so the equipment layout is difficult, and the diversion of coal-gangue is difficult. Therefore,
ZHANG Ye +5 more
doaj +1 more source
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 +1 more source
Scientific Reports, 2023 In order to deeply study the basic characteristics, diffusion laws, and flow laws of coal gangue and coal gangue slurry, the basic characteristic parameters of coal gangue and coal gangue slurry were obtained through particle size distribution test ...
Ji-qiang Zhang +5 more
doaj +1 more source
矿业科学学报, 2022 Natural aggregate is increasingly scarce, and the reuse of solid waste is highly valued. Application of coal gangue aggregate has been drawing broad attention.
Wang Yan, Zuo Zhen, Wen Bo, Gao Guanyi
doaj +1 more source
Test Study on Combustion Adjustment of 330 MW Circulating Fluidized Bed Boiler
发电技术, 2019 A circulating fluidized bed (CFB) boiler of the 330 MW unit have problems such as nonuniform bed temperature, heating surface wear, tube burst and so on. Combustion optimizing adjustment test was carried out to solve these problems.
Xianbin SUN +7 more
doaj +1 more source
Shock and Vibration, 2022 In the process of top coal caving mining, the caving time and the tail beam swing angle have an important impact on the evolution of the coal gangue boundary, which determines the top coal recovery rate and gangue content rate. Therefore, it is necessary
Qingliang Zeng +4 more
doaj +1 more source
Study on mechanical properties and microstructure of steel-polypropylene fiber coal gangue concrete
Frontiers in Materials, 2023 Incorporating coal gangue into the concrete matrix can realize the utilization of solid waste and reduce the use of natural aggregate. To improve the mechanical properties of coal gangue concrete, this paper designs four-level and four-factor orthogonal ...
Jiuyang Li +5 more
doaj +1 more source
Effects of Fine Gangue on Strength, Resistivity, and Microscopic Properties of Cemented Coal Gangue Backfill for Coal Mining [PDF]
Shock and Vibration, 2015 The cemented coal gangue backfill (CGB) in coal mining is normally made of gangue (particle size of 0–15 mm), fly ash, cement, and water. In this study, the effects of the weight content (ranging from 20% to 60%) of fine gangue (0–5 mm) on the microscopic characteristics, resistivity, and compressive strength of CGB were investigated at 3 d and 28 d ...
Tingye Qi +5 more
openaire +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 +2 more sources
Research on multi-manipulator coal and gangue sorting robot system based on machine visio
Gong-kuang zidonghua, 2019 Existing coal and gangue sorting methods mainly use image processing and pattern recognition technology to identify and sort coal and gangue according to texture characteristic values of coal and rock.
WANG Peng +4 more
doaj +1 more source