Mine ventilation is one of the key issues of concern in coal mining.Harmful gases and explosive dusts are often generated in the process of shaft mining,which bring serious threats to the safety of underground production.Based on this,in order to ensure that there is enough clean air underground,it is necessary to supply air volume according to the actual situation of the mine,and the selection of ventilation equipment for new mines is particularly important.Taking the new mine of Yang Coal Group Po Li Coal Mine as the research object,we analyse the advantages and disadvantages of adopting different schemes of vertical shaft central return air ventilation equipment selection,and calculate the ventilation volume of the selection scheme,which can provide certain reference for the selection of mine ventilation equipment.
mine ventilationequipment selectioncalculation and verification
NETL
NSTL
万方数据
