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What are continuous mining machines used for?

A. Putting ore back in surface mines
B. Rotating soil to put oxygen into it
C. Extracting ore from subsurface mines

Answer :

Final answer:

Continuous mining machines are used for extracting ore from subsurface mines. They work by cutting and gathering ore efficiently with rotating drums. This technology enhances safety and productivity in underground mining operations.


Explanation:

What Are Continuous Mining Machines Used For?

Continuous mining machines are specialized equipment used primarily in the mining industry for extracting ore from subsurface mines. These machines play a critical role in underground mining operations due to their efficiency and effectiveness in breaking and gathering ore.

How Continuous Mining Machines Work

A continuous mining machine has a rotating drum with sharp, heavy metal bits that can cut through the ground. As it moves forward, the drum extracts the ore, which is then transferred to a gathering arm, further enhancing the operational speed by minimizing the need for blasting and drilling.

Applications

These machines are particularly useful in soft rock mining, such as coal, gypsum, and potash mining. In addition, they help reduce the number of workers needed underground, providing a safer working environment. The adoption of continuous mining machines has improved overall productivity and efficiency in subsurface mining operations.


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