Results 21 to 30 of about 4,150 (219)

On the academic ideology of “Sorting the gangue is sorting the images” [PDF]

open access: yesMeitan kexue jishu
Coal gangue sorting is the most basic, effective, and important technical measure to improve coal quality. Improving the accuracy and efficiency of coal gangue sorting is a serious challenge faced by coal gangue sorting.
Hongwei MA   +7 more
doaj   +2 more sources

Advances in research on technologies for large-scale coal gangue utilization for green mine construction [PDF]

open access: yesMeitian dizhi yu kantan
BackgroundThe coal gangue, a solid waste, features high production and a continuous increase in the amount piled in China. The long-term piling up of coal gangue will cause the waste of land resources and environmental pollution in mining areas.
Quanlin SHI   +4 more
doaj   +2 more sources

Critical Appraisal of Coal Gangue and Activated Coal Gangue for Sustainable Engineering Applications

open access: yesApplied Sciences
Coal gangue, a primary solid waste by-product of coal mining and processing, constitutes approximately 10–15% of total coal output. Its accumulation poses substantial environmental challenges, including land occupation, spontaneous combustion, acid mine drainage, and heavy metal leaching. Despite its high silica and alumina content (typically exceeding
Narlagiri Snehasree   +2 more
openaire   +2 more sources

Hydrothermal Synthesis of LaCoO3 Perovskite Catalyst and Its Application for the Degradation of Phenol under Visible Light [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
In this study, a series of LaCoO3 perovskite catalysts with varying calcination temperatures were synthesized hydrothermally, and their structure, morphology, and optical properties were investigated using X-Ray powder Diffraction (XRD), Scanning ...
Ziyan Niu   +13 more
doaj   +1 more source

Effect of Small Molecule Compounds on the Pyrolysis Behavior of Coal [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
The effect of small molecule compounds on the pyrolysis behavior of coal is discussed by comparing TG and DTG curves of Yanzhou coal and its tetrahydrofuran (THF) extracted residual in this paper. Based on the thermal gravimetric analysis of Yanzhou coal
Yingchun Wang   +9 more
doaj   +1 more source

Identification Method of Coal and Coal Gangue Based on Dielectric Characteristics [PDF]

open access: yesIEEE Access, 2021
To solve the problems of the difficult feature extraction, poor feature credibility and low recognition accuracy of coal and gangue, this paper utilizes the difference in the dielectric properties of coal and gangue and in combination with a support vector machine (SVM) to propose a recognition method based on the dielectric characteristics of coal and
Yongcun Guo   +4 more
openaire   +2 more sources

Recognition Methods for Coal and Coal Gangue Based on Deep Learning [PDF]

open access: yesIEEE Access, 2021
Recognizing coal and coal gangue is an important part of the coal industry and is mainly conducted via human sorting at present. Consequently, considerable manpower is needed, which adds a burden to enterprises and results in low efficiency. As an important branch of artificial intelligence, deep learning has been widely applied in many fields ...
Qiang Liu 0054   +3 more
openaire   +2 more sources

Experimental platform for coal gangue sorting robot based on image detection

open access: yesGong-kuang zidonghua, 2023
Currently, coal gangue pre-sorting is still mostly done manually, with high labor intensity, low sorting efficiency, and safety hazards. Using coal gangue sorting robots to replace manual coal gangue pre-sorting is an effective way to ensure the health ...
LI Sanxi   +4 more
doaj   +1 more source

A performance study of hydrophobically modified coal gangue mortar

open access: yes矿业科学学报, 2022
Coal gangue has the characteristics of complex physical and chemical properties, low strength, loose and porous, which limit its extensive use in building materials.
Xu Wei   +4 more
doaj   +1 more source

Research progress and key technologies of intelligent coal-gangue sorting robot

open access: yesGong-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

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