Results 21 to 30 of about 309,554 (217)

Research on coal gangue recognition method based on infrared thermal imaging

open access: yesGong-kuang zidonghua
Coal and gangue sorting methods based on heavy-medium coal selection technology, jigging technology, flotation technology, dry coal selection technology and γ-ray detection method have high investment costs, low sorting efficiency and serious ...
CHENG Gang   +3 more
doaj   +2 more sources

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

Hanhaoyang123/Pozzolanic-activity-experimental-dataset-of-calcined-coal-gangue-v1.0.2: Pozzolanic-activity-experimental-dataset-of-calcined-coal-gangue-v1.0.2

open access: yes, 2023
<p>This release contains experimental data on the pozzolanic of calcined coal gangue. "The data on the strength" presents the compressive and flexural strength data of cement mortar specimens (40×40×160 cm) containing 30% calcined coal gangue at ...
Haoyang Han, Junfei Zhang, Ling Wang
core   +1 more source

Preparation and characterization of coal gangue/Al cermet materials [PDF]

open access: yes, 2021
In this study, the calcined coal gangue was mixed with Al powder at different mass fractions (5wt%〜35wt%). After being pressed at 80MPa and sintered at 1200°C for 2h, the coal gangue/Al cermet material was obtained.
Guihua Wu   +3 more
core   +2 more sources

Preparation of activated carbon-mesoporous silica composites from coal gangue and phase transformation during its preparation [PDF]

open access: yes, 2023
Coal gangue, as a mixture of carbon, silicon and aluminum, can be used for the preparation of composite materials. It shows a good prospect as the preparation of composite materials can avoid the difficulties of element separation and impurity ...
Kezhou YAN   +5 more
core   +1 more source

Test Study on Combustion Adjustment of 330 MW Circulating Fluidized Bed Boiler

open access: yes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

Influence of physicochemical properties and shape characteristics of coal gangue coarse aggregate on concrete strength

open access: yes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

Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line during Top Coal Caving

open access: yesShock 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

Near crushing mechanism of gangue-containing coal seams and parameter optimization for combined fully mechanized caving [PDF]

open access: yes, 2023
Fully mechanized caving is the most popular method for safe and efficient coal mining in China. In this study, based on the geological and mining conditions of Workface 822 of the Yuandian No. 1 Mine, we used theoretical analysis and numerical simulation
Pengcheng Liu   +4 more
core   +1 more source

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