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Progress of Coal Gangue Research
2011China is carrying out a large-scale energy bases in the early stages. Historical experience shows that a large number of coal gangue will be produce in the development of coal process. The coal gangue will occur environmental pollution when the improper disposal.
Jianguo Feng, GuiHua Li, Liping Zhang
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Thermal decomposition of selected coal gangue
Journal of Thermal Analysis and Calorimetry, 2017The thermal behavior of two mineral-type coal gangues under different temperature conditions was investigated by heating treatment of kaolinite-type coal gangue and illite-type coal gangue based on thermal analysis, X-ray diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM).
Xu, Bohui +4 more
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Preparation of Coal Gangue Cement Mortar
Advanced Materials Research, 2013Many researches on coal gangue are aimed at increasing its activity by many methods together such as thermal, mechanical and chemical. The methods are so complex that they are difficult to be adopted by some companies. In this paper, considering the low-strength requirement of cement mortar, the activity of coal gangue is more evidently shown by Ca(OH ...
Wen Xia Li +3 more
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Direct-impact of sieving coal and gangue
Mining Science and Technology (China), 2010Abstract Gangue from underground separation of coal can directly be used for filling mined out areas, saving transport capacity and reducing the amount of waste polluting the environment above the ground. We introduced a structure and operating principle of an underground direct-impact sieving device by which a separation experiment was carried out ...
Jianping LI, Changlong DU, Jianwei BAO
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Environmental Science and Pollution Research, 2023
The study herein was intended to evaluate the rheological properties of cemented gangue backfill material (CGBM). For this purpose, the rheological test of CGBM with fractal aggregate particle size distribution was carried out, and variations of static yield stress, dynamic yield stress, and plastic viscosity were investigated as a function of fractal ...
Xiaoli, Ye +5 more
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The study herein was intended to evaluate the rheological properties of cemented gangue backfill material (CGBM). For this purpose, the rheological test of CGBM with fractal aggregate particle size distribution was carried out, and variations of static yield stress, dynamic yield stress, and plastic viscosity were investigated as a function of fractal ...
Xiaoli, Ye +5 more
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Analysis of Coal Gangue Pollution Control Technology
Advanced Materials Research, 2013In this paper, we discussed the gangue on the mining area that have bad economic and environmental impact. It has been shown that the coal gangue accumulation could seriously prevent the regional ecological and economic sustainable development. Pollution control technology is the key to solve this problem.
Yan Guang Liu, Li Nan Yu, Ai Guo Zhou
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Characterization of Heavy Metals from Coal Gangue
2020Coal gangue, a residue obtained during the coal mining process, accounts for 10–15% of raw coal produced. Usually, this coal gangue is transported and stacked loosely in the nearby areas. Long term piling up of this mine waste can volatilize large amounts of potentially toxic heavy metals which have the ability to infiltrate surrounding ecosystems.
Mohammed Ashfaq +2 more
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Heavy Metals Distribution Pattern in Coal Gangue
2009 3rd International Conference on Bioinformatics and Biomedical Engineering, 2009For assessment on heavy metals environmental security in coal gangue, coal gangue samples were collected from Xinwen mineral area which lay in Shandong Province of China. Tessier extractive experiments were carried out to check the heavy metals' chemical species.
Junliang Hao +3 more
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Environmental Geochemistry and Health
With the continual advancement of coal resource development, the comprehensive utilization of coal gangue as a by-product encounters certain constraints. A substantial amount of untreated coal gangue is openly stored, particularly acidic gangue exposed to rainfall.
Yanwen, Guo +3 more
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With the continual advancement of coal resource development, the comprehensive utilization of coal gangue as a by-product encounters certain constraints. A substantial amount of untreated coal gangue is openly stored, particularly acidic gangue exposed to rainfall.
Yanwen, Guo +3 more
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Activity and structure of calcined coal gangue
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2007Coal gangue was activated by means of calcination in seven temperature ranges. Systematic research was made about activation mechanism and structural evolution. Glycerin-ethanol method, SEM, MIP and XRD were used to determine the variation of structure and activation of coal gangue during the calcination.
Gong, Chenchen +3 more
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