Study on Optimization of the Dedusting Air Duct Layout in Coal Mine Roadway

Coal dust pollution in fully mechanized excavation faces not only affects the safety production of coal mine but also threatens health workers. In order to reduce and improve work conditions mines, layout dedusting-air duct dry collector influence position on dust-producing area were studied. addition, effects different cutting positions removal efficiency A full-scale model roadway is established by CFD, diffusion distance between tunneling head dedusting air are The results show that higher position, concentration, longer time roadway. When set 4 or 5 m, highest. Moreover, with arranged opposite side than middle