Results 81 to 90 of about 182,044 (286)
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
doaj +1 more source
Faktor-faktor yang Berhubungan dengan Gangguan Fungsi Paru pada Pekerja di Unit Boiler Industri Tekstil X Kabupaten Semarang [PDF]
, 2016 One of the negative impacts of boiler operation using coal fuel is air pollution caused by coal dust. Respirable coal dust can risk workers of lung function disturbance either restriction, obstruction or mixed.
Afiani, E. E. (Ellita) +2 more
core
Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition
Chemie Ingenieur Technik, EarlyView.The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen +2 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
doaj +1 more source
Considerations on coal gasification [PDF]
Commercial processes for the gasification of coal with oxygen are discussed. The Koppers-Totzek process for the gasification of coal dust entrained in a stream of gasifying agents is described in particular detail.
Franzen, J. E.
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Restoration of the tribotechnical pairs in equipment of mining industry [PDF]
, 2019 Purpose. Substantiation of the possibilities and development of technology for the restoration of the worn-out tribotechnical pairs of mining equipment by methods of hot radial stamping in powder metallurgy using technogenic waste. Methods.
Biloshytska, N +2 more
core +1 more source
Effect of the additive concentration on the modification of petroleum coke and anode quality
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Calcined petroleum coke is one of the major raw materials for anode manufacturing, which is used as the carbon source in electrolytic cells for primary aluminium production. It constitutes around 65%–70% of the anode recipe. Therefore, the quality of calcined coke has an important impact on anode quality, which affects the cost, energy ...
Sena Ozturk +3 more
wiley +1 more source
Air quality as a constraint to the use of coal in California [PDF]
Low-NOx burners, wet scrubbing systems, baghouses and ammonia injection systems are feasible for use on large combustion sources such as utility boilers.
Austin, T. C.
core +1 more source
Deep Underground Science and Engineering, EarlyView.Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao +5 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
doaj +1 more source