Research on the reasons and preventive measures for the disturbance of bottom air flow in multiple air inlet shafts
WANG Zhenguo
TIAN Suchao
BAO Diwen
LI Bo
Abstract：In order to solve the problem of unstable airflow direction and small air volume in the road-way near the confluence point of multiple intake shafts in the Okhobrak coal mine,the ventilation sys-tem was analyzed using the law of air pressure balance and the ventilation energy equation,and the discriminant formula for determining the airflow direction of the unstable airflow roadway and the air volume calculation formula were derived;The calculation formula was validated using on-site measured data,and the results showed that the calculation formula results were consistent with the actual situation on site and were correct and usable;Based on the calculation formula and the actual situation on site,prevention and control measures were proposed to ensure the stability of the mine ventilation system and improve its disaster resistance.
Keywords：multiple air intake shaftsair disordercalculation formulacorner branchpreventive meas-ure
Publication Date：2023-12-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 31-35 )