自然风压对矿井通风系统的影响及治理对策

摘要

由于井下巷道高差不一，联系紧密，使得巷道中空气的温度和密度不同，必然会产生自然风压。自然风压的存在，将会导致矿井通风网络中某些分支的风流发生变化，进而影响风流的稳定，影响矿井的安全生产。因此，分析自然风压对矿井通风系统的影响，对矿井的安全生产是十分必要的。针对山西介休义棠瑞东煤业基建期间行人斜井出现回风问题，通过实例，分析了造成行人斜井回风产生的原因及其对通风系统的影响，提出了治理对策。%Because the underground roadway elevation is different and closely linked,makes air temperature and density is different in tunnels,which will produce the natural wind pressure inevitably.The existence of the natural wind pressure,will lead to the wind flow of some branches in the mine ventilation network change,affect the stability of the wind flow and the safety of mine production.Therefore,the analysis of the effect of natural wind pressure on mine ventilation system is very necessary for the mine safety production.Aiming at the problems which are about the return air of the pedestrian inclined shaft during infrastructure of Shanxi Jiexiu Yitang Ruidong coal company,through instance,analyzes the causes of return air in pedestrian inclined shaft as well as the influence on the ventilation sys-tem and puts forward the countermeasures.