What are the Different Coal Mining Processes?

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What are the Different Coal Mining Processes?
Various machines are used in coal mining. The
different processes used in coal mining are
employed depending on the location of the coal,
whether it is located close to the surface or
underground. The coal mining equipment used for
every process will be different.
Coal Mining Processes
Below are mentioned four main procedures commonly
used in the process of coal extraction?
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Continuous Mining

• It consists of a rotating head attached to a main
  body. This rotating head is used to break the
  walls of coal down. The machine is designed in a
  way to slowly break the walls. The rotating
  motion allows the user immense control. He can
  then break the wall in a way to only leave
  pillars of the coal wall. This pillar can support
  the ceiling while the rest of the excavation
  continues. On completion, the pillars are also
  broken, allowing the ceiling to give way
  automatically.

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Longwall Mining

• Longwall mining is an efficient method of coal
  extraction from underground mines. In this coal
  extraction method, temporary roof supports are
  used to keep the roof from caving in. Several
  machines are used to excavate the coal, which is
  then transferred using conveyors.

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Surface Mining

• This process is employed to extract coal located
  close to the surface. It is largely divided into
  two steps. One, drag-line shovel machines are
  used to get rid of the superficial layers of mud
  and stone. Two, once the rock is exposed, smaller
  machines are used to extract the coal.

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Conventional Mining

• This method uses explosives and drills to extract
  coal. This is one of the most unsafe methods of
  coal extraction.

• The equipment used for coal mining is expensive.
  But, there is no need to feel stuck if you dont
  have any financial backing. Purchasing used coal
  mining equipment is possible through various
  websites and vendors. This will help you save on
  excessive costs with an extremely transparent
  purchasing process.

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