Song Jiu didn't go for the time being, and the twenty officials who had studied went first, at least they had studied and studied, and Song Jiu had also told them that they were half insiders.

Song Jiu took the students to study another thing, and first invited three craftsmen who burned glaze in the Song Dynasty at a high price. In the Song Dynasty, there were many workshops that burned colored glass, but they took the wrong path from the beginning, so what was fired was real colored glass, not glass. Some workshops have good benefits, and some workshops have poor benefits.

However, relatively speaking, they all have some practical foundation, but they deviate from the direction of research and development, and the three old craftsmen of Song Jiu were invited, paid high salaries, and signed confidentiality measures with high compensation, but the rewards behind were also very amazing. Then another yard was built behind the house, and an earthen kiln was built in the yard.

Song Jiu did not submit it, and no one asked him to hand it over. Even most people were skeptical that he could burn a large piece of glaze, Song Jiu's knowledge came from that Western teacher, and it was not strange that he could burn the glaze, but how many years had Dashi burned it, and he had never seen a large piece of glaze sold to the Central Plains.

It will be related to whether the beautiful houses he painted can be built, it is a luxury, and it has little to do with military and civilian use, and some people may covet it after success, but they are not embarrassed to say it. Besides, whether it can succeed or not is another matter.

Zhao Kuangyi allocated a horse for Song Jiu to learn to ride.

Being able to ride a horse is a good thing, the speed in this era is too sad, only riding a horse is the fastest speed. Song Jiu took the time to practice, but his nose and face were swollen, and he was finally able to reluctantly trot on a horse, but he still couldn't gallop. But Song Jiu didn't know what to say, Zhao Kuangyi let him ride a horse for a reason, Zhao Kuangyin and Zhao Pu said a word, the south ......

A few days later, Song Jiu ran along the official road to the saline-alkali land. It is not too far from the East Water Gate, at the junction of Kaifeng County and Chenliu County.

The whole Kaifeng boundary has many soil layers, poor soil quality, mostly belongs to the fine sand washed down by the Yellow River, and the saline-alkali land is everywhere. But the people also have the people's methods, and the court has the methods of the court. It is not suitable for planting crops, it can be suitable for planting fruit trees and mulberry forests, the weather is cool, it is suitable for animal husbandry, and the imperial court can be used to be a good pastoral supervisor. In fact, there is another way, to divert the water of the Yellow River to continue to wash, and after the water recedes, a large amount of silt will be left, so the barren land will become fertile soil.

This Song Jiu knew the way, but now the Song Dynasty is not short of land, but lack of people, the line of Hebei shocked him, Xiangzhou Cizhou is not too far from the capital, it is so empty. He didn't want to do much, and he wouldn't mention it.

Riding a horse, Zhao Kuangyi gave a good horse, a high-quality black pheasant mare, seven or eight years old, more humane, docile personality, otherwise these days practicing riding will fall even worse. If you ride it into battle to kill the enemy, I am afraid that the speed of the horse will not be able to keep up, and it is the best to use it as an ordinary mount.

Come to the construction site.

There were many people, more than a thousand people, and there were officers and soldiers and craftsmen everywhere. In the distance are several kilns, which are used to burn bricks, and China has a long history of burning bricks. However, the cost is relatively high, and in the Song Dynasty, there were some earthen kilns that used coal to burn bricks, and the design was unreasonable. This phenomenon continued until the Southern Song Dynasty, and bricks and tiles were still expensive.

Song Jiu greeted him in the future and made improvements, first calling many brick kiln craftsmen, and then comparing the form of the current cave sent by the imperial court with the form of the brick kiln in the memory of later generations. Eight earthen kilns were designed.

If you want to burn bricks well, one is the structure of the kiln, the second is the temperature, and the third is the soil quality.

First look at the best design of the cave, this is easy to compare, the same soil bricks, you can know after firing a furnace of bricks. Try the temperature and soil quality again, when Song Jiu arrived, the answer had already come out, and only two cave designs were the most reasonable.

In fact, with this article, it has made the imperial court excited.

Wooden houses are warm in winter and cool in summer, but they are easy to be eroded, cracked and weathered, and must be repaired from time to time, and are easy to catch fire. The palace is like this, and the Song family houses are like this. As for the common people, it is a mud wall thatched roof, at most a tile roof, and the wall is still a mud wall. Song Jing, a famous minister of the Tang Dynasty, was a magistrate, and saw that the city was changed into a brick house because of the flammable wooden house, but the amount of silk spent behind it was not inscribed in the annals of history. The cost of bricks and tiles is too expensive, and many of them are not of good quality.

When the technique came out, it cost a lot of money, and it also used more than 200 laborers and nearly 100 craftsmen. But it does not mean the end, the bricks used for the blast furnace and the bricks used to build the house are the same, you must use refractory bricks, clay bricks, high-alumina bricks, corundum bricks, the latter two don't want to think about it, think about the previous species, you have to use high-viscosity clay to burn out clay bricks. Not only blast furnaces, but also coke furnaces need refractory bricks.

This doesn't cost much, and the next thing is to spend money.

In several warehouses, many people are making cement under the leadership of officials, and Song Jiu's request is to rather lack than abuse, the quality of cement may not be bad, but it leads to heavier waste and higher costs. It's made and put in storage. It's not the place where the money is spent, the most expensive place is the blast furnace.

It is not enough for the blast furnace to have cement, it is not the kind of high-grade cement, and a large number of reinforced concrete structures must be used if you want to be strong. Now the wire drawing technology is so backward, there are steel bars, so I have to stupidly use the method of 100 steel refining and nine refining, beat the iron into steel, and then slowly draw it into various steel wires with serious uneven thickness. But for the time being, once the steel mill is officially launched, a large number of steel products will be obtained. This article is the most expensive place, if it weren't for Song Jiu to make gunpowder and let the minister see the power, it is estimated that the imperial court would not agree at all.

There is also some river sand and hard stones blasted out of gunpowder.

This is a big construction site.

Song Jiu looked around, first to see if the various materials were qualified, and Song Jiu also knew that the Dao Imperial Court had spent a lot of money, but this was the relationship between fish and water. Without the support of the imperial court, private people would not have been able to do it. If the court does not support it, the court will not get this benefit.

Quickly began to organize people to build a blast furnace, the weather gradually became colder, and in the morning a thick layer of hoarfrost began to form outside. But there were enough people, so they first dug deep pits to lay a solid foundation, and then built scaffolding with wooden rafts, stuffed them with mud bags, and built a hexagonal platform, which was erected towards the sky. The high platform is nearly 20 zhang, almost more than 60 meters. Then hundreds of specially made thick steel bars were erected along the high platform, and the steel mesh was tied from the bottom to the top, a total of 16 layers. Song Jiu was afraid that people would have an accident when working at height, so he asked the officials to collect a large amount of hay and spread it around the high platform, which really came in handy, and one person accidentally fell down and landed on the haystack, only suffering a little minor injury. A minor injury and a death are different, compared with this major event, human life is not valuable, but someone dies, unlucky, it will also make the craftsmen above worry, at this time the craftsmen are not used to high-altitude construction, there is a timid craftsman standing on the high scaffolding, actually scared and cried.

Sixteen columns, sixteen horizontal columns, then dismantle the scaffolding, re-erect the scaffolding on the outside, and start pouring concrete.

On the other hand, there are affairs, the first is the large bellows, and the large blast furnace must have a strong blast. Song Jiu did some tests in that house very early, and before the construction started, he was developing the real thing. The first is to change the current bellows from a long shape to a cylindrical shape, compress the dead angle, and the wind pressure is sufficient, and there is no air leakage. The second is the porous blast. The third is to make use of the turbulent characteristics of the river in this section of the Bianshui River to make a row water wheel blower. This is Song Jiu's previous life to run to Europe donkey, fortunately saw it, he has a good memory, and curious, at that time asked the principle and wrote it down. I learned a lot of knowledge in my previous life, and I saw a lot of knowledge, but many of them were not used in the duel. There are also people in the imperial court, and when they saw it, they said, "There are also people in my court." Song Jiu was strange, and later the official said it was different. That's definitely different, the hydraulic blowers of the Song Dynasty are much behind. Now all we have to do is to make it practical and large-scale from the test laboratory.

The last is the key to steel.

The steel filling method is an improvement, but whether it is wrought iron into pig iron, or pig iron into wrought iron, there are two problems that cannot be solved, and this is the reason why Song Jiu almost screamed at that time. One is that the molten iron is not a very good carburizer, and the other is the gravity of the earth, after the molten iron melts, it will flow downward, and the lower part of the billet has a high carbon content after cooling, and the upper part has a low carbon content. Either it is poured repeatedly, then its plasticity will become very poor. Therefore, to the Ming Dynasty, it was further improved, and there was a mud seal iron filling steel method, as well as a Suzhou steel frying method. Tianzhu also has the Indian crucible steelmaking method.

These three methods Song Jiu doesn't know the way, that is, there are still a lot of drawbacks in the way, but in fact, the principle of knowing the way is not so complicated. The main principle is to make iron carbon. With a blast furnace, there is a good quality cast iron, without which it is not possible. Converter steelmaking was impractical in this day and age, but there was a way. With good quality cast iron, and then build a large carburizing kiln, in the kiln with wrought iron rods and charcoal alternately stacked, must use charcoal, otherwise China's coal will contain a lot of sulfur, carbon penetration, sulfur also penetrated, once the sulfur content exceeds the standard, even steel is also unqualified steel. Then the furnace fire is maintained at a high temperature for four to seven days to react and penetrate, and after the furnace is forged to reduce the thickness and remove impurities, it is an excellent steel, at least better than any steel except for the real 100 steel. And what Song Jiu values most about it is mass production, large-scale mass production.

As the progress of the project deepened, the imperial court also fell at this time, and Song Jiu wanted what he wanted, and at most he almost sent more than 2,000 troops to participate.

In fact, the sulfur that Song Jiu was worried about was smelted with coke and iron, which was at least half less sulfur than the previous kind of steel made from coal and iron, unless charcoal was used, but charcoal smelting had more disadvantages, especially the temperature could not keep up at all.

Problems are constantly occurring, waste is constantly being made, and corrections are constantly being made. If Song Jiu didn't take charge in person, I don't know what kind of trouble would appear in Lu Dao.

The weather is getting colder and colder, because this kind of cement has poor cold resistance and slow solidification, Song Jiu asked people to set the charcoal on fire all around, raise a bonfire, and forcibly raise the temperature of the surrounding area. The effect is relatively poor, but it is still possible to increase the temperature of five or six degrees, and it will be different from this kind of cement with these five or six degrees.

The money was used so much that the three divisions and the officials of the treasury were terrified.

But the blast furnace took shape day by day, and then more dense scaffolding was erected and bricks were laid. Layer by layer. Because the cement is not completely solidified, and the wood and earth platforms inside have not been removed, then the blast furnace has all solidified, and they are slowly getting out.

A month later, just as a layer of ice melted in the Bianshui River, a strange chimney finally stood on the banks of the Bianshui River.

The scaffolding built by the bamboo did not dare to take it, and some arrangements had to be built in the furnace, and the coal bonfires around it did not dare to stop, but the mud and wood inside began to be lifted out, and the blast furnace was theoretically completed.

It was not far from the capital, so Zhao Kuangyin brought the minister over to watch.

It's not reported by Song Jiuyu, it actually depends on the best ten days, the blast furnace produces iron, and then steel, smelts good iron, smelts good steel, and then looks at it, I don't know how much money Lu Dao used in the imperial court, but I think it will not be less, and even the money from his main store has already been used, but when I see the results, I will feel that this money is worth it.

A mighty brigade of people came over, and Song Jiu and the officials greeted him.

Everyone looked up at the blast furnace, and there were only three words in their minds: high, so high!

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