华阳二矿通风系统优化改造及安全评价

Optimization Transformation and Safety Evaluation of Ventilation System in No.2 Colliery of Yangquan Coal Industry (group) Co., Ltd.

因华阳二矿通风系统存在巷道阻力异常、需风量增大及增风困难等问题,提出四种通风系统优化方案:一是将立风井改作为回风井;二是将西风井改作为回风井;三是将东风井原主要通风机与现有风机并联运行;四是不增设风井,新设一条并联回风巷。经对比分析得到:采用方案二,该矿通风系统安全评价结果由原来的55.9分提高到74.9分,且均大于其他方案,通风系统提升为较安全状态。

Aiming at the abnormal roadway resistance,increased air demand and difficult ventilation increasing in ventilation system in No.2 Colliery of Yangquan Coal Industry(group)Co.,Ltd.,the author proposes four ventilation system optimization schemeschanging the vertical shaft into return-air shaf,changing the western air shaft into return-air shaft,realizing parallel running of the original main ventilator in the eastern air shaft with the current,changing the western air shaft into return-air shaft,adding a parallel ventilation roadway with no air shaft,in which scheme 2 is applied by comparative analysis,promoting the ventilation system into safety status with increased scores of safety evaluation result from 55.9 to 74.9.