| Blasting dust is the main pollution of mining underground, so controlling the proliferation of the blasting dust is an effective measure to reduce the concentration of mining dust, and is also the main approach to security the safety of mining underground.Through the research and analysis of the underground blasting-dust's characteristics, the calculation method of initial concentration is given. Basic model of blasting-dust's diffusion is established. The CFD simulation software CFX is used to calculate the behavior of blasting-dust during ventilation process in Tonglushan. The relation between consistency of harmful dust and the time is exhibited visualized. Through the research and analysis of the underground blasting-dust's characteristics, the calculation method of initial concentration is given. Basic model of blasting-dust's diffusion is established. The CFD simulation software CFX is used to calculate the behavior of blasting-dust during ventilation process in Tonglushan. The relation between consistency of harmful dust and the time is exhibited visualized.According to smoke after the bursting of the distribution of the simulation results as well as through the ventilation system Tonglushan at this stage of the study, presented Tonglushan underground mining ore mining in the wind for the main existing problems, for the main problems, Various mining methods for wind compare the pros and cons of the situation, select a suitable Tonglushan mining for the wind, and then optimize them. |