WORKING OUT AERODYNAMIC PROCESSES MODELING METHODS IN MINE VENTILATION NETWORKS BY MAIN FAN INSTALLATIONS REVERSAL

Abstract

In this paper the analysis of air distribution experimental investigation by main fan reversal is presented.
Air flow and pressure measurements are accomplished
in Verkhnekamsky field potash mines. Classification of
factors influencing on air distribution is proposed.
Basic objective factors, connected with aero-dynamics
and thermo-dynamics of air flows that are appropriate
for scientific analysis, as well as subjective factors,
connected with failures in mine ventilation structures
functioning are marked out.. The analytical formula,
which allows determination of shock losses in mine airways junction is obtained for objective factors investigation Subjective factors investigation and minimization general organizational and technical measures on
providing regulatory permissible values of air leakage
in case of main fan reversal are formulated.