borehole coal mining equipment
CDC - Mining Feature - Equipment and Protocol for Drilling Rescue .Jul 21, 2015 . Mining Feature: New Equipment and Protocol for Drilling . the drilling of a large-diameter borehole, which enabled the safe ascent of miners to the surface. . Reduces Dust Exposure to Drill Operators at Surface Coal Mines.borehole coal mining equipment,Borehole (Slurry) Mining of Coal, Uraniferous . - CDC stacksBorehole (slurry) mining of coal, uraniferous sandstone, oil sands, and phosphate ore. ... were used in the Marconaflo equipment. It contained separate.borehole coal mining equipment,Robertson Geologging: Borehole, Slimhole & Wireline Logging .Robertson Geologging developer of slimhole digital wireline & borehole logging systems. Largest global supplier of slimhole borehole-logging equipment.