Ventilation Network Optimization of Pakrut Gold Mine Based on Ventsim
Aiming at the problems faced by the underground ventilation system of Pakrut Gold Mine,such as excessive ventilation energy consumption,insufficient deep air intake,short-circuiting and circulating air flow,and irrational regulation of air flow,optimization of the shallow and deep ventilation system was carried out.According to the current situation of underground ventilation system in Pakrut Gold Mine,through mine-wide wind measurement,the underground wind speed and wind flow distribution was achieved,the ventilation capacity and wind resistance of the whole mine were analyzed,and the theoretical model of underground ventilation and wind resistance was established.Using Ventsim software,a three-dimensional numerical model of the ventilation system of Pakrut Gold Mine was established for dynamic simulation of the wind flow in the ventilation system of Pakrut Gold Mine.Then,optimization and adjustment plans were proposed and the effect of wind regulation was simulated and analyzed,so as to realize the optimization of the ventilation network.The results show that the ventilation of Pakrut Gold Mine is greatly affected by the natural wind pressure,and the natural ventilation of each line is significantly affected by seasonal changes.According to the optimization and adjustment plan of deep air distribution,most of the air flow is sent to the deep mining area through the west wind shaft,and a small part of the air flow flows to the deep ramp through the mining area,which has effectively solved the problem of the insufficient air supply in the deep mining area.The optimized ventilation system is more stable and the airflow distribution is more reasonable.The study is a good guide for the ventilation management of Pakrut Gold Mine.
Mine ventilationResistance distributionVentilation networkAirflow distributionVentilation system optimizationEnergy saving and consumption reduction
万方数据
维普
