Study on the Application of Controllable Circulation Ventilation System in Mine Shaft System
With the gradual deepening of the mining depth of the mine,the height of the shaft is increasing,and the original ventilation system is difficult to control the impact air flow and dust in the shaft system.To solve this problem,this paper proposes to adopt the controlled circulation ventilation technology scheme,and analyzes it with the practical application of a deep shaft system in a lead-zinc mine.The analysis results show that by installing a circulation fan in the middle section of-455 m in this mine,the regional ventilation circulation of the deep shaft is constructed,so that the ventilation volume of the middle section of the deep air use is increased by 26 m3/s;by installing the purification facilities,the quality of the circulating air is guaranteed;t the mine saves 36.7%of its energy consumption by adopting the controllable recirculation ventilation.
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