Contribution of Shield Movement to Airborne Dust Levels on Longwall Faces

摘要

Dust control in high production longwalls is a major problem requiring, among other things, careful attention to the design of operating practices, and ventilation schemes. In this project, firstly, several control methods for shield-generated dust were reviewed. Secondly, the amount of airborne respirable dust generated per shield move was estimated from specially designed experiments on longwall faces. A total of ten experiments was conducted in five longwall faces in four different mines.