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The Coal
Industry and Technology
The coal miner
of 50 years ago would not recognize today's coal industry. The
coal industry has largely replaced manual labor with computerized
machinery. Technology and training have increased productivity
and improved miner health and safety within the coal industry.
At an average salary of $50,000 per year, miners in the coal industry
are among the highest paid industrial workers in America. Technological
advances in the industry have improved air quality before coal
ever leaves the mine. The coal industry is working in tandem with
electric utilities and railroads to facilitate efficient transportation.
The end result is cleaner, less expensive electricity generation.
The coal
industry has dramatically improved thanks to new technologies.
- State-of-the-art
continuous mining machines, automated roof supports, long wall
systems, and high capacity conveyors, trucks and draglines mean
that today's coal industry can produce an average of nearly
52 tons of coal in an eight hour shift, a three-fold increase
from nearly 30 years ago (1970 - 12000).
| Source:
EIA, Annual Energy Review 2001, T.7.6 |
Coal Industry Production, 1980-2001 |
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Source: EIA, Annual Energy Review 2001,
T.7.1
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- The quality
of reserves and the surrounding geological conditions are determined
before exploration. Space technology, such as satellites and
Global Positioning Systems (GPS), originally designed for military
navigation, is utilized in the science of surveying and mapping
in the coal industry. This helps reduce mining costs by eliminating
the need for difficult overland survey work.
- Machines
have become nearly fully automated and some can be run by remote
control, and robotics, lasers and computer-controlled equipment
are the staples of today's coal industry. All of these technological
advances have led to gains in productivity.
Together,
the coal industry and electric utilities have created a system
that produces coal that is cleaner and blended in accordance with
boiler specifications in order to meet complex regulatory standards.
- Many companies
in the coal industry have built modern, computerized coal preparation
plants at their mines that can remove more than one/third of
the impurities from raw coal.
- New equipment
also allows the coal industry to analyze and blend different
coals to meet a utility's specific boiler specifications. A
better product from the mine makes it easier for power companies
to meet the strict requirements of the Clean Air Act.
- New coal
industry technologies remove pollutants during the combustion
process.
- Technology
can convert coal into a cleaner burning gas or liquid.
- Scrubbers
reduce pollution in flue gases after combustion.
- From
start to finish, coal is cleaner than ever before in the coal
industry thanks to new technologies.
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