Preparation of Magnetic Coal-measure Kaolinite Nanomaterials and Adsorption of Cr(Ⅵ) [PDF]
This is an article in the field of mineral materials. In order to develop the high-value utilization technology of coal associated mineral resources kaolinite, coal-measure kaolinite nanomaterials(CKN) were prepared by indirect intercalation-liquid phase
Ruifeng GUO +4 more
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Research on the strength prediction model of Na based bentonite filling body based on ultrasonic transverse wave testing [PDF]
As the core unit of backfill mining method, the strength of backfill is an important indicator to ensure safe mining. Na-based bentonite features a high methylene blue adsorption capacity and green compressive strength, making it a high-quality additive ...
CHENG Jinshan +3 more
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Method determination on key position of coal mine constructional backfill based on fracture characteristics of roof structure [PDF]
Backfilling mining is important for controlling strata movement and reducing surface subsidence and environmental damage. Insufficient sources of raw materials and high backfilling costs have become major bottlenecks, limiting the application of backfill
Guorui FENG +7 more
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Preparation of SiC/Al2O3 composite materials from coal fly ash [PDF]
, 2016 By using coal fly ash as a raw material and graphite as a reducer in the protective atmosphere of argon,SiC/Al2O3 composite materials were synthesized by carbothermal reduction.The reaction process of reduction of the coal fly ash was studied,and its ...
LI Wei +5 more
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Coal gangue image recognition model based on CSPNet-YOLOv7 target detection algorithm [PDF]
The gangue recognition technology is one of the key technologies in the intelligent construction of mines. To address the problem of low accuracy of the gangue recognition model caused by low illumination and high dust environment at the working face and
Chao LIU +4 more
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Innovation and practice of quadrilateral development model for coal resources [PDF]
China’s coal mining technology has undergone many innovations, with continuous improvements in the intensification and modernization levels of coal production.
Feng JU +4 more
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Connotation, research status, and development directions of clean coal geology in China [PDF]
[Objective] The exploration and assessment of low-carbon, zero-emission, and maximized utilization of coal resources, emerge as a focus of coal geology in the 21st century.
Harold H. Schobert +6 more
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Coal gangue image recognition model based on improved U−Net and top coal caving control [PDF]
Coal gangue identification technology is a critical component for the automation of fully mechanized mining faces and represents a significant challenge within this domain.
Libao LI +5 more
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Research progress on the treatment of acid coal mine drainage [PDF]
Acid coal mine drainage has emerged as one of the most challenging environmental problems in the coal industry because of its large output, wide pollution range, long duration, and unstable water quality and quantity.
Bingjian LIU +6 more
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