Journal ArticleDOI
Effect of air flowrate on pollutant dispersion pattern of coal dust particles at fully mechanized mining face based on numerical simulation
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In this article, the effect of air flowrate on pollutant dispersion pattern of coal dust particles at the fully mechanized mining face is investigated. And the authors aim to reduce the dust concentration through adjusting the air flow rate parameter.About:
This article is published in Fuel.The article was published on 2019-03-01. It has received 181 citations till now. The article focuses on the topics: Airflow & Coal dust.read more
Citations
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Multi-factor numerical simulation study on spray dust suppression device in coal mining process
TL;DR: In this article, the authors used computational fluid dynamics (CFD) for numerical simulation of spray nozzles with three pore diameters of 1.6, 2.0, and 2.4.
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Numerical simulation study on dust pollution characteristics and optimal dust control air flow rates during coal mine production
TL;DR: In this article, a highly simulated physical model of the goaf and multiple dust sources were established in order to obtain the optimal dust-removal air flow rate in the roadway, by combining the numerical simulation method, the influence of the flow rate on dust diffusion rules of the dust sources was analyzed.
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Novel sodium silicate/polymer composite gels for the prevention of spontaneous combustion of coal.
Xiaofeng Ren,Xiangming Hu,Xiangming Hu,Di Xue,Yongsheng Li,Zhiang Shao,Hao Dong,Weimin Cheng,Weimin Cheng,Yanyun Zhao,Lin Xin,Lu Wei +11 more
TL;DR: Among the various gels, the HPAM-Al3+/WG hydrogel exhibits the best seepage capacity, water retention capacity, compressive strength, and inhibition characteristics, which effectively resolve the post-water-loss cracking and pulverization problems commonly associated with inorganic consolidated silica gels.
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The accuracy and efficiency of GA and PSO optimization schemes on estimating reaction kinetic parameters of biomass pyrolysis
TL;DR: The results indicate the better optimization abilities of PSO with the closer convergence solution to the global optimum and quicker convergence to the solution than GA based on the three-component parallel reaction mechanism of biomass pyrolysis.
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The preparation of a novel hydrogel based on crosslinked polymers for suppressing coal dusts
TL;DR: In this paper, a new dust suppression gel was prepared by graft copolymerization of itaconic acid-acrylic acid polymer and bentonite, which had excellent wind erosion resistance and could effectively reduce the occurrence of coal dust during coal transportation.
References
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Journal ArticleDOI
Modeling and numerical simulation of particulate flows by the Eulerian–Lagrangian approach
TL;DR: In this article, an Eulerian-Lagrangian numerical simulation (LNS) scheme for particulate flows is presented, which can handle a range of particle loadings and particle types.
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Research on tunnel ventilation systems: Dust Diffusion and Pollution Behaviour by air curtains based on CFD technology and field measurement
TL;DR: In this paper, the authors made an in-depth analysis of the effects of an air curtain generator's radial and axial pressure airflow rate and a dust removal fan's exhaust airflow rate on the diffusion and pollution behaviors of dust through CFD technology and field measurements.
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Effects of air volume ratio parameters on air curtain dust suppression in a rock tunnel’s fully-mechanized working face
TL;DR: In this paper, the effects of the air volume ratio parameters (axial-to-radial flow ratio of the wall-attached air cylinder "δ" and the forced-toexhaust ratio "β") on the air curtain dust suppression in a rock tunnel's fully-mechanized working face, the eastern belt of Huipodi mining company (Shanxi Mineral Group Co., Ltd., China) was numerically simulated by CFD software in this study.
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Effects of spraying pressure and installation angle of nozzles on atomization characteristics of external spraying system at a fully-mechanized mining face
TL;DR: In this article, the authors employed experiments, numerical simulations, and field measurements to carry out an in-depth investigation of the dust suppression performance of an external spraying system, and the results showed that when the nozzles were installed at an inclination angle of 30° and operated at a spraying pressure of 8 MPa, the spray field formed could cover the whole dust-producing region around the drum.
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Adsorption and molecular dynamics simulations of nonionic surfactant on the low rank coal surface
TL;DR: In this paper, the behavior of nonylphenol ethoxylate with 12 ethylene oxide groups (NPEO-12) on model surface of Hatcher subbituminous coal was investigated.