Results 1 to 10 of about 9,578 (228)

Experimental Study on the Characteristics of Activated Coal Gangue and Coal Gangue-Based Geopolymer

open access: yesEnergies, 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   +5 more
doaj   +2 more sources

Coal Gangue Ecological Matrix Coupled with Microalgae for Soil Improvement and Plant Growth in Reclaimed Mining Areas [PDF]

open access: yesBiology
Coal 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

Study on axial compressive behavior and mesoscopic structural evolution of FRP confined coal gangue concrete. [PDF]

open access: yesPLoS ONE
To address the environmental hazards caused by coal gangue waste, coal gangue concrete (CGC) has been proposed as a solution. However, due to its porosity and low strength, CGC faces numerous challenges in practical applications.
Qingwen Li   +7 more
doaj   +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

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

X-ray transmission intelligent coal-gangue recognition method

open access: yesGong-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   +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

Pozzolanic activity experimental dataset of calcined coal gangue

open access: yesData in Brief, 2023
The coal gangue in this dataset was subjected to a series of processes, including drying, crushing, and milling. Subsequently, the coal gangue powder was subjected to high-temperature calcination in a muffle furnace, with a heating rate of 4 ℃/min. The pozzolanic activity of coal gangue powder was investigated at various calcination temperatures (600 ℃,
Junfei Zhang, Haoyang Han, Ling Wang
openaire   +3 more sources

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