Experimental Study of Gas Emission, Distribution and Migration Rules in Mini Mine Ventilation Network

This article provides a CFD modeling study and a mini mine ventilation system experiments modeling test. The laboratorial model enables us to get an intuitive understanding of the construction of mine production system, the arrangement of roadway and the formation of goaf. First of all, the shift of different types of ventilation system can be achieved by opening and closing different valves of the simulation model, by which we are able to understand the relation between the arrangement of roadway and the types of ventilation systems. Besides, air distribution rules can be learned by adjusting the air quantity and measuring the air velocity in roadway. In addition, this model can be used to conduct the measurement of mine ventilation resistance. In addition, gas emission and extraction rules of goaf can be obtained by conducting gas concentration monitoring and detection, which provides an opportunity for us to master the usage of related experimental devices.