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Mining Publication: Computational Fluid Dynamics Modeling of a Medium-sized Surface Mine Blasthole Drill Shroud
Keywords: Blasting Computer simulation Respirable dust
Original creation date: November 2016
Authors: Y Zheng, WR Reed, L Zhou, JP Rider
Peer Reviewed Journal Article - November 2016
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NIOSHTIC2 Number: 20048802
Min Eng. 2016 Nov; 68(11): 43�49
The Pittsburgh Mining Research Division of the U.S. National Institute for Occupational Safety and Health (NIOSH) recently developed a series of models using computational fluid dynamics (CFD) to study airflows and respirable dust distribution associated with a medium-sized surface blasthole drill shroud with a dry dust collector system. Previously run experiments conducted in NIOSH’s full-scale drill shroud laboratory were used to validate the models. The setup values in the CFD models were calculated from experimental data obtained from the drill shroud laboratory and measurements of test material particle size. Subsequent simulation results were compared with the experimental data for several test scenarios, including 0.14 m3/s (300 cfm) and 0.24 m3/s (500 cfm) bailing airflow with 2:1, 3:1 and 4:1 dust collector-to-bailing airflow ratios. For the 2:1 and 3:1 ratios, the calculated dust concentrations from the CFD models were within the 95 percent confidence intervals of the experimental data. This paper describes the methodology used to develop the CFD models, to calculate the model input and to validate the models based on the experimental data. Problem regions were identified and revealed by the study. The simulation results could be used for future development of dust control methods for a surface mine blasthole drill shroud.
Cover image for Computational Fluid Dynamics Modeling of a Medium-sized Surface Mine Blasthole Drill ShroudPeer Reviewed Journal Article - November 2016
Go to Web Page
NIOSHTIC2 Number: 20048802
Min Eng. 2016 Nov; 68(11): 43�49
See Also
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Page last reviewed: July 14, 2017
Page last updated: July 14, 2017
Content source: National Institute for Occupational Safety and Health, Mining Program
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