Results 61 to 70 of about 309,554 (217)

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

Biology
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, Jinning Li, Dandan Du, Hao Li, Jiayong Hao, Zedong Teng, Xiang Ji   +6 more
doaj   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

Energy Science &Engineering, Volume 14, Issue 9, Page 4470-4485, September 2026.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin, Yitao Yan, En Wang, Xubo Zhao, Kanglei Han   +4 more
wiley   +1 more source

Research status and innovative utilization strategy of coal gangue resource in building material field

能源环境保护, 2023
Coal gangue has been the biggest industrial solid waste discharged in our country, with the cumulative stockpile of more than 7 billion tons. The accumulation and discharge of coal gangue occupy a large amount of land, pollute the soil, air and water ...
WU Changliang, WANG Wenlong*, WANG Xujiang, LI Jingwei   +3 more
doaj   +1 more source

Extraction of Coal and Gangue Geometric Features with Multifractal Detrending Fluctuation Analysis

Applied Sciences, 2018
The separation of coal and gangue is an important process of the coal preparation technology. The conventional way of manual selection and separation of gangue from the raw coal can be replaced by computer vision technology.
Kai Liu, Xi Zhang, YangQuan Chen
doaj   +1 more source

Mechanism on Activation of Coal Gangue Admixture

Advances in Civil Engineering, 2021
Coal gangue, an industrial waste, is rich in silicon and aluminum phase and may be used as a mineral admixture in concrete after moderately stimulating activity, allowing for efficient solid waste utilization. This study used a mortar strength and activity evaluation method to investigate single or compound activation methods to find the optimum ...
Jixi Chen, Xiao Guan, Mengyu Zhu, Jie Gao   +3 more
openaire   +2 more sources

Control Mechanism of Pore Structure of Different Macroscopic Lithotypes on Gas Desorption Differences: A Case Study of High‐Rank Coal From the Western Ordos Basin

Energy Science &Engineering, Volume 14, Issue 9, Page 4508-4521, September 2026.
论文陈述 Paper Statement 本研究揭示了不同宏观煤岩类型的差异化控气机制:半亮煤是主要“储气核心,” 光亮煤为关键“渗流通道,” 暗淡煤则是“初期高产贡献者”。这为深层煤层气甜点优选与定制开发提供了关键理论依据。 This study reveals the differentiated gas‐controlling mechanisms of different macroscopic coal lithotypes: semibright coal acts as the primary “gas storage core,” bright coal serves as the critical “seepage channel,” and dull coal functions
Heng Li, Conghui Liu, Chen Li, Peipei Zhu, Sijie Feng, Rui Shi, Jian Shen   +6 more
wiley   +1 more source

Design of automatic identification system of coal and gangue for fully-mechanized coal caving working face and its applicatio

Gong-kuang zidonghua, 2014
An automatic identification system of coal and gangue for fullly-mechanized coal caving working face based on vibration signal was proposed, structure and working principle of the system were introduced and design schemes of software and hardware of coal
ZHANG Liang, NIU Jianfeng, DAI Gang, ZHAO Wensheng   +3 more
doaj   +1 more source

Study on the Reactivity Activation of Coal Gangue for Efficient Utilization

Materials, 2023
In this study, the research aim is to enhance the activity index of activated coal gangue and study its activation mechanism. The activation process of coal gangue was optimized through orthogonal tests, and the Back-Propagation (BP) neural network model was improved using a genetic algorithm.
Yanshao Hu, Xiaoyan Han, Zuozheng Sun, Peng Jin, Keliang Li, Fuke Wang, Jinwei Gong   +6 more
openaire   +2 more sources

Moss Biocrusts Regulate Heavy Metal Speciation and Mobility in Coal Mine Soils

Land Degradation &Development, Volume 37, Issue 15, Page 10979-10992, September 2026.
ABSTRACT On a global scale, coal mining activities often lead to heavy metal(loid) contamination in soils of mine dump sites, posing serious ecological risks. As ecosystem “engineers,” biological soil crusts (biocrusts)—especially moss crust—have shown great potential in remediating heavy metal‐polluted soils, but their roles remain underexplored.
Song Guang, Yang Haotian, Wang Xinyu, Li Guoxin, Zheng Ying   +4 more
wiley   +1 more source

Study on the prediction of gangue content rate in fully mechanized caving face based on DeepLab v3+

Gong-kuang zidonghua
To tackle the challenge of accurately determining the volumetric gangue content rate under actual stacking conditions of coal-gangue in fully mechanized caving faces, a prediction method based on the DeepLab v3+ model was proposed.
WANG Zhifeng, WANG Jiachen, LI Lianghui, AN Bochao   +3 more
doaj   +1 more source