three Strategies of Coal Mining

Floor mining is used for an estimated 40% of coal production. Used equipment gear can be utilized to extract coal. Extracting coal is inexpensive if it is discovered close to the surface. Once coal is extracted, the topsoil is then changed and native trees and vegetation is planted to revive the unique condition. There are three various kinds of surface mining: contour, strip, and mountaintop removal mining.

1- Contour Mining: Contour Mining is mostly utilized in areas which have steep or rolling terrain. It includes digging the earth above the coal line, or coal seam, along the contours of the hilly terrain. This method could be dangerous because it might cause landslides and erosion problems.

2- Strip Mining: Strip Mining often occurs on flat terrain. The earth is dug up in long cuts or strips till the coal seam is exposed. After the strip has been drilled and blasted and all of the coal has been eliminated, a new strip is created proper subsequent to it and the process continues.

three- Mountaintop Removal Mining: Mountaintop Removal Mining includes using a mix of Contour Mining and Strip Mining. The mountaintops are removed to reveal the coal beneath and the coal is extracted.

Underneathground Mining Strategies

If the coal seams are too deep belowground, then deep underneathground mining is necessary. Deep belowground mining strategies include Continuous, Longwall, Blast, Retreat Mining and Shortwall Mining.

o Continuous Mining: A machine that has a big rotating steel drum with tungsten carbide tooth scrapes coal from the seam. Conveyors are used to move the eliminated coal. About 5 tons of coal could be mined per minute. Accounts for about 45% of belowground coal production.
o Longwall Mining: A classy machine that has a rotating drum that mechanically strikes back and forth alongside the seam. Loosened Buying / Selling Coal Mining Equipment falls on the pan line which takes the coal to the conveyor belt. Accounts for about 50% of coal production.

o Blast: An older mining method that makes use of dynamite and explosives to break away the coal seam. Accounts for lower than 5% of coal production.
o Retreat Mining: One of the crucial harmful coal mining methods. Pillars are used to hold up the mine roof as coal is extracted. The pillars collapse as miners retreat.
o Shortwall Mining: Just like longwall mining. Uses a steady mining machine with transferable roof supports. The machine shears coal panels about 2.0 feet large and half a mile long.

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