Results 51 to 60 of about 17,396 (250)
Selective Non‐Catalytic Reduction of NOx in the Exhaust Gas of Small Wood Gasification Boilers
Chemie Ingenieur Technik, EarlyView.Kinetic studies of the SNCR reaction were conducted to investigate NOx reduction in the exhaust gas of small‐scale wood gasification boilers. Both the experimental results and the derived global kinetic model indicate that SNCR can achieve a significant reduction in NOx emissions under typical operating conditions. ABSTRACT The gas‐phase reaction of NO
Alexander Groß, Sven Kureti
wiley +1 more source
AtmosphereShearer drum cutting of coal seams generates over half of the coal dust in coal mines, while relevant studies focus more on micron-sized dust and much less on nano- to sub-micron-sized coal dust.
Hui Liu +9 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li +7 more
wiley +1 more source
Gong-kuang zidonghua, 2018 In order to improve quality of underground wireless communication and ensure effective communication, influence of underground coal dust concentration and humidity on electromagnetic wave transmission was researched.
ZHAO Shiping, SUN Xiuling, KAN Xiaoting
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Meikuang Anquan, 2020 Various particle sizes and its explosive residues were tested using 20 L spherical explosive device, and the effect of particle size on the explosive conditions and explosive products of coal dust and solid residues was analyzed under different coal ...
LIU Zhentang, ZHOU Xifang, LI Xiaoliang, HONG Sen, LIN Song, QIAN Jifa
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Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Meitan kexue jishuIn order to investigate the main factors affecting the effect of spray dust reduction on the particle size of coal dust after spray dust reduction, a quantitative mathematical model was obtained to characterize the quantitative relationship between the ...
Bingyou JIANG +5 more
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Study on airflow-coal dust dispersion pattern and control technology in fully mechanized mining face
Gong-kuang zidonghuaThe shearer in a fully mechanized mining face generates significant turbulent airflow during coal cutting, resulting in changes in airflow velocity in the mining area and causing the lateral dispersion of coal dust particles toward pavements.
GAO Cheng +3 more
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