The Analysis of Potash Salt Dust Deposition in Roadways

The authors propose a mathematical model of salt particulate dynamics in a roadway, including convection and diffusion of particles with air flow, coagulation of particles, condensation of water on them, and gravity deposition of particles on the roadway floor. Using the finite difference method, th...

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Bibliographic Details
Published in:Journal of mining science 2021-03, Vol.57 (2), p.341-353
Main Authors: Semin, M. A., Isaevich, A. G., Zhikharev, S. Ya
Format: Article
Language:English
Subjects:
Air flow
Air pollution
Analysis
Atmospheric particulates
Coagulation
Convection
Deposition
Dust
Dust storms
Earth and Environmental Science
Earth Sciences
Finite difference method
Full scale tests
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Gravity
Mathematical models
Mine Aerogasdynamics
Mine ventilation
Mineral Resources
Model testing
Parameterization
Particulates
Potash
Potassium carbonate
Roads
Salts
Ventilation
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Summary:The authors propose a mathematical model of salt particulate dynamics in a roadway, including convection and diffusion of particles with air flow, coagulation of particles, condensation of water on them, and gravity deposition of particles on the roadway floor. Using the finite difference method, the problem on flow of salt particulates in a roadway is solved, and the particulate concentrations and the average size of particles are determined. The calculations are compared with the analytical model and full-scale test data. The found correlation between the particulate deposition velocity and the aerosol parameters can be used for the parametrization of mathematical models of air–dust mixture flow in ventilation networks of potash mines.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739121020186