通风系统测定及降阻优化

Ventilation System Measurement and Resistance Reduction Optimization

为解决综采工作面通风系统通风阻力增大、风量不足的问题,在对当前矿井通风阻力和通风机性能测定的基础上,针对性地提出了四条降阻优化方案,并通过对通风系统考核参数赋予不同权重建立综合评价模型,对四种降阻优化方案进行综合评价,最终得出第一种优化方案(在-370 m和-150 m采区中间增加增阻调节风门;将24采区上山通道改进为回风上山通道;将矿井北侧采区的进风巷由当前的2条缩减为1条)为最佳降阻优化措施。

In order to solve the problem of increased ventilation resistance and insufficient air volume in the ventilation system of the comprehensive mining working face,based on the determination of the current mine ventilation resistance and ventilator performance,four optimization schemes for reducing resistance are proposed in a targeted manner,and a comprehensive evaluation model is established by assigning different weights to the ventilation system assessment parameters to comprehensively evaluate the four optimization schemes for reducing resistance,and finally the first optimization scheme(increasing the resistance regulating dampers in the middle of-370 m and-150 m mining area;improving the up hill passage of 24 mining area into the up hill passage of return air;reducing the inlet air passage of the north mining area from the current 2 to 1)is the best optimization measure for reducing resistance.