Coal is a booster for modern industry.

It is not that coal is better than charcoal, but that coal has the convenience that charcoal does not have.

Charcoal is cut down and then smoldered in a kiln before the wood can be carbonized into charcoal, but the coal can be used when it is dug up, and it is not limited by the growth of wood.

When a lot of energy is needed, the advantage of coal is more obvious.

But coal also has a more serious problem, that is, there are more impurities, especially sulfur. Desulfurization, Fei Qian really doesn't know much, but I still remember that there was a sulfur calcification reaction in middle school chemistry class, so it was just a rough washing, crushing and drying, mixed with a small amount of lime, and found that it still had a little effect, at least when burning, there was no smell of sulfur dioxide anymore......

Of course, such desulfurization is still far from meeting the requirements of steelmaking, so to make good steel, charcoal is still to be used at this stage.

But in other ways, coal as a fuel can play a considerable role.

Fei Qian has a lot of things now, and he can only talk to Huang Dou, and then Huang Dou can only make it up by himself in order to keep it secret, and the result of the continuous rotation has caused Huang Dou to look like a large soybean, but now he has lost a lot of weight.

Huang Chengyan took the tongs, smashed the remains of the burned honeycomb coal in the brazier, and then said: "With this thing alone, Huang Dou can remember one more credit!" But ......"

Huang Chengyan didn't finish speaking, but Fang Cai's actions had completely expressed his concern.

It's a good thing, but it's not suitable for selling finished products in large quantities. Anyone who can get the original, then how much will imitate a seven, seven, eight, eight, or eight, although some of the subtle additives may not be noticed, but if it is only used for ordinary heating, cooking, etc., then even if there are no these additives, it is not much different......

The technical content is too low to form a threshold.

Fei Qian also agrees with this, unless he can take down the entire state of Merger, including Shangdang and Taiyuan, close the Taihang Eight Paths, and control the entire Shanxi coal mining area, otherwise this kind of technology, which is not difficult, will soon spread.

However, Feiqian pays attention to the fact that the emergence of this small substitute for heating in industrial physics has a role in the advancement of the entire engineering technology......

Fei Qian said: "I don't plan to sell this, but we use it ourselves. There is a complete river from Yong'an to Beiqu, and on both sides of this river, there are quite a few suitable places where large workshops can be built, and most of them have ...... fuel."

Fei Qian pointed to the honeycomb coal.

Unless the steel process pushes coal one step further and turns it into coking coal, and then develops desulphurization technology, it is still not as good as high-quality charcoal.

However, other projects that are not worried about impurities such as sulfur and phosphorus, such as initial rough embryo cement, high sulfur content but more brilliant glass, red brick or cinder bricks, green tiles or colored tiles, etc., can become a strong foundation for these products......

Not to mention, if all the wood charcoal originally used to make bricks in the kiln were saved and used to make iron, how much steel would be produced?

Also, direct heating.

Humans, animal husbandry in the winter heating, and plants, even in conjunction with the glaze industry, developed greenhouse vegetables......

The Xiaoice period is approaching, and coal will provide excellent protection for the entire northern army and livestock of Fiji!

This small change in physics often brings more possibilities and more room for development!

Needless to say, if you can have a little bit of green vegetables and green leaves in winter, this is actually similar to the meaning of auspiciousness for the rule!

In the Han Dynasty, glaze was still very precious, and the vegetables grown in the glazed house were simply priceless......

And the source of all this lies in this, the small, black coal.

With coal, Fidin can at least ensure that in the next Xiaoice period, at least within the town, there will be no loss of people and livestock due to climate reasons, and similarly, because of the heavy use of coal, it will not lead to large-scale regional tree felling.

In fact, there is another consideration, Fei Qian did not tell Huang Chengyan.

Historically, in order to heat up, in the era when there was no large-scale use of coal, everyone's eyes were directly on the trees, and the excessive felling of trees not only brought about vegetation destruction, soil erosion, but more importantly, directly changed the entire ecological environment, yellow sand erosion, and in the end, the remains of many ancient cities in the northwest in later generations were not produced in this way?

The sooner coal is used on a large scale, the more vegetation is protected.

Fei Qian said: "The vast Luliang Mountain, swinging smoke and light. Layers of black coal slurry, green ore deposits everywhere. Carboniferous, lime, iron ore, clay, etc. are all available. The son-in-law wants to build a large workshop along the river here, on the one hand, it can use water power, on the other hand, it can use charcoal to build all kinds of ordnance and civilian tools, and then research and develop glaze, tile, tillage tools, etc., and at the same time, the engineering technology inherited by the Huang family from the Mo family will be standardized and established again, and the book will be written, so that the craftsmen can also be like Confucius and Mencius, and pass on to future generations......

However, Fei Qian's description of the overall plan for the future of the state alone is enough to attract Huang Chengyan. Huang Chengyan listened, his eyes became brighter and brighter, but his expression became more and more entangled, and after a long time of silence, he only said one sentence with difficulty and thought about it, and drove Fei Qian away.

This one......

What does it mean?

Although Fei Qian felt that the change in painting style was too sudden, it was not easy to say anything, after all, he was an elder, so he had to get up and retire first.

Huang Chengyan sat alone in the study, and the expression on his face changed.

The Huang family has been based in Jingxiang for a hundred years, and most of the craftsmen and industries are near Jingxiang, and it is indeed not an easy thing to transfer people to merge with the state for a while and a half.

The situation described by Fei Qian is also a place that all craftsmen, including Huang Chengyan, are extremely yearning for, there are water conservancy, minerals, fuel, places, and officialdom like Fei Qian, who absolutely supports the research of craftsmen......

If he can be twenty years younger, no, maybe he only needs to be ten years younger, how can Huang Chengyan follow Fei Qian to Bingzhou to see for himself, if this is the case, maybe he will resolutely relocate, but now, Huang Chengyan is difficult to choose.

It's really hard......