Accurate classification of mine ventilation difficulty degree and its application
LIU Hui
YANG Shengqiang
XU Qin
LIU Jun
Abstract：The mine (independent ventilation system) ventilation difficulty degree is hard to evaluate accurately by the equivalent orifice.The classification and evaluation method of mine ventilation difficulty degree is proposed,based on the ventilation system of the Panxi coal mine.The difficult ventilation line and the easy ventilation line is devised by making use of the mine ventilation volume and the equivalent orifice,which divided the two-dimensional space into three areas:difficult ventilation area,medium ventilation area and easy ventilation area.A new scoring model was built to evaluate the difficulty of mine ventilation.The calculation formula and the grading standard was then given.The empirical result shows that the model can reflect the problems of mine ventilation system more accurately and clarity the direction of adjustment.
Keywords：mine ventilationequivalent orificeventilation difficulty degreegrading standard
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 26-31 )