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为了解新郑煤电矿井通风系统存在的问题,根据井下风量分配情况规划了4条测定路线,并合理选取了测风点与测压点进行通风阻力测定。分析新郑煤电通风阻力测定数据及结果表明:对于新郑煤电矿井通风系统,采用气压计基点法测试结果较为准确,西风井、北风井及矿井等积孔均大于2 m2,属通风容易矿井;西翼通风阻力集中在用风区,主要是14采区运输上山和回风上山2条通风线路均有调节设施,增加了通风阻力;北风井通风系统回风巷风量较为集中,风速较大,回风区阻力较大。针对2风井通风系统存在的问题分别提出了优化建议。
In order to understand the problems existing in Xinhao coal mine ventilation system, four measurement routes were planned according to the distribution of downhole air volume, and the wind resistance point and pressure measurement point were selected reasonably to determine the ventilation resistance. The results show that for the Xinzheng coal mine ventilation system, the test result of the barometric pressure gauge base point method is more accurate. The average pore volume of the west shaft, north shaft and mine is more than 2 m2, which is easily ventilated mine ; West wing ventilation resistance concentrated in the wind area, mainly 14 mining area up and down the mountain and the return air uphill two ventilation lines have regulation facilities, increased ventilation resistance; north wind well ventilation system return air lane is more concentrated, the wind speed is more Large, return area resistance. Aiming at the existing problems of ventilation system in 2 wind shafts, some suggestions are put forward respectively.