在矿山工程中,常常由于井下情况变化,矿车往返运输和溜子头装卸等原因,造成粉尘对进风流的严重污染,大大超过《矿山保安规程》对矿井入风含尘量不应大于0.5毫克/米3的要求。因此,需要采取防止措施,以确保工人的身体健康。 北京矿务局城子煤矿井下为负压通风,其中3#斜井为原煤提 In the mine project, the dust pollution to the inlet air flow is often caused by the change of underground conditions, the round-trip transport of trucks, and the loading and unloading of slops, which greatly exceeds the limit of “Mine Safety Regulations” / M 3 requirements. Therefore, preventive measures need to be taken to ensure the health of workers. Beijing Mining Bureau Chengzi underground coal mine for the negative pressure ventilation, of which 3 # incline as raw coal mention