Results 181 to 190 of about 4,130 (213)

Engineering properties of cement with coal gangue

2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011
Engineering properties of cement with coal gangue was studied to determine the compressive strength, freeze-thaw and shrinkage characteristics of the material. The composition of coal gangue was determined using the screening test; the liquid limit, plastic limit and water ratio of the cement with coal gangue were measured using the Liquid and Plastic ...
Yan Zhang, Jun Zhang
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Char-CO2 reaction behaviour and interactions of coal gangue/weathered coal and coal gangue/pine sawdust blends

Journal of Thermal Analysis and Calorimetry, 2023
Yuanyuan Zhang, Peizhen Zhao, Fengling Yang   +2 more
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Research on a Coal Gangue Identification Device

Applied Mechanics and Materials, 2013
The paper designed a coal gangue identification device. It firstly proposed to use the guide groove to guide, grayscale sensor to recognize and the corresponding mechanical actuators to realize automatic separation of coal and waste rocks. Compared with other separation device, it firstly put forward solutions to realize the linear arrangement of ...
Gang Feng Zheng, Jia Wei Zha, Hai Zeng Liu, Ling Li   +3 more
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Progress of Purification and Applications of Coal Gangue

Advanced Materials Research, 2013
coal gangue, as one of the largest industrial solid wastes discharged during coal production has caused serious environmental pollution. However, the utilization level of coal gangue is not the same in different countries. Through purification and activation ,the utilization rate of coal gangue could increase gradually,while bioleaching method can also
Teng Huang, Shao Min Lei, Qiu Lin Ma, En Wen Wang   +3 more
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Study on Pyrolysis Characteristics of Coal Gangue and Washed Middling Coal

2011 Asia-Pacific Power and Energy Engineering Conference, 2011
The pyrolysis characteristics of low quality mixing coal are investigated by thermal analyses,in which the coal is mixed by coal gangue and washed middling coal. The sample is five kinds of mixing materials which their proportion is 1:4, 2:3, 1:1, 3:2, 4:1.
Changzhong Song, Hua Xun
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Discussions of Resource Utilization of Coal Gangue

Advanced Materials Research, 2014
The ways of using coal gangue in electricity generation, chemical utilization and building-material production are introduced and national coal gangue utilization status and development trend is analyzed in this paper. Pointing out the main problems in present utilization of coal gangues, suggestions on coal gangue resource utilization are given that ...
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Identification of Coal Gangue in Coal using YOLO V7

2023 7th International Conference on Trends in Electronics and Informatics (ICOEI), 2023
Pavithra D, Poovizhi P, Nikil Vignesh R, Vigneshwaran R, Sowrow A   +4 more
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Enhanced adsorption properties of polyoxometalates/coal gangue composite:The key role of kaolinite-rich coal gangue

Applied Clay Science, 2023
Hao Zhang, Rongbo Zhao, Zhiliang Liu, Xiangchao Zhang, Chunfang Du   +4 more
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Study on Crushing and Separation of Coal and Gangue

Applied Mechanics and Materials, 2013
In this paper, the pressurization of irregular ores was first discussed so as to make an analysis on the causes for the great difference between measured result and actual ores, and then a preliminary pressure experiment was made on a certain quantity of coal and gangue samples extracted from Du'erping Coal Mine through electronic universal testing ...
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Study on the mechanical behavior and micro-mechanism of concrete with coal gangue fine and coarse aggregate

Construction and Building Materials, 2022
Linli Yu, Junwu Xia, Ze Xia
exaly