Colombia’s total coal reserves of 6.6 billion tons, is the most abundant coal resources in countries in Latin America, accounting for 0.7% of the world’s total reserves, representing approximately 30% of the total coal reserves in Latin America.
The choice of mining method is largely determined by the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common. For example, surface mining accounts for around 80% of production in Australia; while in the USA it is used for about 67% of production.
Liming heavy industry designed the suitable coal mining technological process:
The coal mining machines including the coal primary european type jaw crusher pew860, coal impact crusher pf1214, coal hpc220 hydraulic cone crusher, coal TGM190 series trapezium grinding mill, LM vertical roller mill, coal ball mill and so on.
Coal is mined using giant machines to remove the coal from the ground. There are two basic methods to remove coal: surface mining and underground mining. Surface mining is used when the coal is typically less than 200 feet below the surface. Crushing machines are used to remove the top layers of soil and rock to expose the coal.
After the coal mineral crushing to small size, the coal mineral are belt into TGM190 trapezium grinding mill or vertical roller mill to get suitable size coal mineral product.
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