 Study of spray atomization law and dust suppression effect of a wet dust catcher on a hydraulic supportWen Nie, Jianjun Li, Huitian Peng, Changwei Xu, Shaobo Zhang, Xingpeng Cha, Shixing Yi and Felicie Ilele Mwabaima Energy, 2024, vol. 305, issue C Abstract: To control effectively large dust concentrations and their diffusion during coal cutting and shifting of shearers at fully mechanized mining faces, a wet dust catcher on a hydraulic support was developed. The spray nozzle suitable for wet dust collection devices was optimized through spray experiments, and the effects of the spray pressure Pw and nozzle tilt angle θ on the droplet size and fog field concentration were analyzed with Fluent. The numerical simulation results show that the wide-angle solid cone nozzle (with an X-type swirl core) with a diameter of 2.4 mm, water pressure Pw of 6 MPa, and nozzle tilt angle θ of 10° toward the windward side can form a better water curtain. Finally, the wet dust catcher was applied at a 22104 fully mechanized mining face of the Shangwan Coal Mine. The dust removal rate of the shearer driver reached 86.20 %, and that at other positions reached 85 % on average. Evidently, the hydraulic support wet dust catcher can effectively control the diffusion of coal dust at fully mechanized mining faces. Keywords: Coal dust; Spray; Wet dust catcher; Numerical simulation (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:305:y:2024:i:c:s036054422402070x DOI: 10.1016/j.energy.2024.132296 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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