Study on dust field model and influencing factors of the air outlet of the fully mechanized excavation face
Aiming at the problem of high dust concentration in Huozhou Coal Power in the air outlet of 8101 fully mechanized excavation face,the dust field was analyzed theoretically by using fluid mechan-ics analysis method,and its migration distribution was simulated numerically.By simulating the dust law of the air outlet 5～10 m from the end of the fully mechanized excavation face,the dust concentra-tion distribution along the road of the driver was analyzed,the dust concentration distribution predic-tion model was established when the air outlet parameters changed.On the basis of the prediction model,the parameters of the air outlet were regulated to reduce the dust concentration at the key point,and the dust removal effect was evaluated.The results show that the dust concentration at the height of the driver's breathing belt is reduced by 42.1％,and the dust concentration at the key point of the hidden danger is reduced by 26.7％.
NETL
NSTL
万方数据
