which machine is used for removing overburden line in coal reservoir
Mining Terminology - Tobie Mining & Energy IncBackfill – Mine waste or rock used to support the roof after coal removal. .. cycle, line injection multi-stage burner, enhanced flue gas desulfurization (or . Coal reserves - Measured tonnages of coal that have been calculated to .. large excavation machine used in surface mining to remove overburden (layers of rock.which machine is used for removing overburden line in coal reservoir,Coal Mining and Transportation - Energy Explained, Your Guide To .Aug 31, 2017 . A huge backhoe digs through the top soil, the overburden . Coal miners use large machines to remove coal from the earth. . Modern mining methods allow coal miners to easily reach most of the nation's coal reserves and to . Surface mining is often used when coal is less than 200 feet underground.How Coal Works | Union of Concerned ScientistsThe electricity sector accounted for over 90 percent of all coal used, with the rest . very powerful mining machines, which rapidly cut coal from the face of coal seams. . referred to by the industry as “overburden”, must be blasted and removed, .. Scrubbers use a wet line slurry to absorb sulfur as it passes through.