In China, people divide coal into three categories according to the volatile content of coal, one is lignite, one is bituminous coal, and the other is anthracite.

Lignite is a type of coal that is intermediate between peat and bituminous coal, and is the mineral coal with the lowest degree of coalification. Among the three types of coal, lignite is the one with the shortest coal-forming age and the lowest combustion value.

The volatile content of lignite is more than 40%, the ignition point is low, it is very easy to ignite, the fire is fast when burning, the flame is large, and the black smoke is emitted, but the combustion time is very short, and it needs to be added frequently.

At present, in China, because the high-quality coal is almost dug up, most of the coal used in China is mainly this kind of lignite.

Bituminous coal contains about 30% volatile matter, less moisture and ash content, fast ignition when burning, long flame, there will be a large amount of black smoke, and the burning time is longer. It is a kind of coal with high calorific value and easy to slag after combustion.

As for anthracite, it is a kind of coal with few impurities, a compact texture, and a carbon content of more than 80%. Anthracite has very little volatile matter, usually less than 10%, has a high ignition point, and is not easy to catch fire, but once burned, the calorific value is extremely high. When this kind of coal is just burned, the fire is relatively slow, but once the flame comes up, the fire is very strong, the flame is short, the smoke is less, the burning time is long, and it is not easy to slag.

Usually, anthracite is used in combination with other coals to reduce the fire intensity.

Of these three types of coal, anthracite is undoubtedly the best coal, but the reserves of this coal in China are very small.

Don't look at Huaxia is the country with the largest coal reserves in the world, but this high-quality anthracite only accounts for about 10% of China's total coal reserves, and the reserves of the entire China anthracite coal are even less than 500 billion tons.

Anthracite is a good thing, it's not the same thing as thermal coal. Anthracite can be used as high-grade thermal coal. It can also be used in the chemical industry to manufacture chemical products such as methanol and fertilizers; The final coal can also be used as injection coal after simple processing, and directly used as a substitute for coke!

Although anthracite is used as thermal coal because of its high price and has no competitive advantage over thermal coal, anthracite still far exceeds lignite and bituminous coal in other aspects. Therefore, this kind of high-quality coal is still a very sought-after coal in China and even in the global market.

And Russia's Tunguska coalfield, a super coalfield with reserves of more than 1.7 trillion tons, anthracite is the main part of it.

If such a good anthracite coal field is not built, does Tang Feng still have to go far and far to engage in those bituminous coal or lignite?

In addition, due to weather, environmental constraints and other constraints, the Tunguska coalfield has not been fully developed until now, and only a small amount of mining has been carried out in a slightly warmer place at the southern end of the coalfield. It's nothing short of tyrannical.

Since you old Maozi are reluctant to mine that coal field, then Lao Tzu will reluctantly mine it for you!

Energy and minerals are the common wealth of mankind around the world, you don't need it, don't block others from using it!

After Tang Feng found a very high-sounding reason for himself, he began to move the Tunguska coalfield, which was 3,000 kilometers away, in this large area northeast of Erlian.

When the survey scope of the star core covered the super coal field, even Tang Feng couldn't help but be shocked by the underground situation there.

Through the survey of the star core. Tang Feng could clearly see the situation underground in that large area. Beneath that more than a million square kilometers of land, there is black coal everywhere. Among them, anthracite accounts for more than 80% of the share!

The 1.7 trillion tonnes of coal are spread across this vast area about 1,800 kilometers long and 1,150 kilometers wide, and there is almost no color other than black. The entire coal seam is thin in the south and thick in the north, and the thickest part of the coal seam is more than 1,500 meters. Even the average thickness is more than 600 meters!

This is definitely a priceless treasure, and it is such a treasure, but it belonged to China hundreds of years ago!

This piece of black gold made it impossible for Tang Feng to fully survey it here, and this was after the star core was upgraded to level four. For the first time, I couldn't survey a mineral deposit. This made Tang Feng's heart very unbalanced!

Damn, it turns out that this place should belong to our country, and now let you old Maozi occupy it, how can you make Lao Tzu psychologically balanced? 1.7 trillion tons of coal, which is almost one-third of the total coal reserves in China!

Tang Feng had never been like today, gritting his teeth and activating the star core. After the star core activated the deformation survey function, Tang Feng did not hesitate to issue a transportation order in the survey area with a length of 3,500 kilometers and a width of 350 kilometers.

The upper layer of the Tunguska coalfield is mostly lignite and bituminous coal, and the anthracite is mostly in the lower layer of the coal seam. This coal seam distribution is also in line with the coal formation process. Therefore, Tang Feng's transportation this time was aimed at the anthracite coal in the lower layer.

If about half of the anthracite coal is transported over within the scope surveyed by the star core, then the data given by the star core is about 150 billion tons, which would require about 2.1% of the energy storage of the star core.

This is not a small number, now the storage of 2.1% of the complete body star core is almost equivalent to 300% of the energy storage of the previous fourth-level star core! However, in view of the huge amount of this handling, 150 billion tons, this is the amount that Tang Feng has never tried before.

Compared to the 150 billion tons of reserves, 2.1% of the energy storage seems to be nothing, don't forget, now the three star core splits can provide 0.24% of the energy storage for the star core body every day, and in nine days, this 2.1% energy consumption can be replenished back.

"! Why don't you do this? Tang Feng gritted his teeth and began to carry it, and almost in an instant, a huge amount of anthracite coal was transported from the Tunguska coalfield 3,000 kilometers away to Tang Feng's feet in an extremely magical way.

You know, 150 billion tons of coal, the place occupied is quite huge, but after so much coal has been transported, there has been no change in the surface here.

And at the other end of the transported end, so much coal has been moved, it is said that there should be a huge underground cavity, but there will be inexplicably appeared soil and rocks directly filled, it seems that the rock and soil on this side of the transport end in the process of transporting, and the coal has been exchanged, the coal is transported from the transported section, and the rocks and soil at the transport end are exchanged at the same time. (To be continued.) )