After coming out of the palace, Li Zexuan went straight back to Yunshan. He had to quickly draw the drawings of the equipment needed to make iron because these things were not easy to make at all.
"Wife, I will be in seclusion in the study for the next two days. If there is no urgent matter, don't let anyone disturb me!"
Back home, Li Zexuan said to Han Yuxi.
Yunshan Villa was good because it was far away from the main city. Usually, there were few people and it was very quiet. Moreover, there were beautiful mountains and clear waters here. It was a treasured place for self-cultivation!
"En! But husband, don't tire yourself out. We don't lack anything now. Why do you have to work so hard? "
Han Yuxi obviously understood what Li Zexuan was going to do. It was not the first time a similar situation had happened, so she said with a worried face.
"Haha! Wife, don't worry. With your husband's physique, it is impossible for him to tire himself out! I don't believe that when husband is done, I will fight with you for three hundred rounds! "
Li Zexuan smiled and pinched Han Yuxi's pretty face, then said indecently.
Of course, even though he said that, he was still very grateful for his wife's concern.
"Husband ~!"
Han Yuxi was ashamed and angry. She stomped her feet and said coquettishly, but Li Zexuan had already slipped away at this time!
… … …
"Blast furnace. If you want to improve the efficiency of iron making, you must build a blast furnace!"
In the study, Li Zexuan muttered to himself in front of a large piece of white paper on the desk.
In modern industry, the methods of iron making included blast furnace method, direct reduction method, melting reduction method, plasma method, and so on. Blast furnace iron making was the main method of iron making in modern society. Its output accounted for more than 95% of the world's total pig iron production.
Blast furnace iron making was a complicated process. The raw materials used were iron ore, limestone, and coke. The reaction in the blast furnace was mainly divided into three parts. The first part was the process of preparing the reducing agent, the second part was the main principle of iron making, and the third part was the process of removing impurities and forming slag. However, the iron smelted by the blast furnace was not pure and contained a small amount of impurities, so it was called pig iron.
In the process of smelting iron ore, raw materials such as iron ore, coke and limestone are layered into the blast furnace (iron smelting furnace) according to a certain proportion. A large amount of oxygen-rich air heated by the hot blast furnace is blown into the blast furnace through the air inlet, so that the coke is burned to form carbon dioxide. The carbon dioxide then reacts with the hot coke on the upper layer to reduce into carbon monoxide.
Carbon monoxide was added from the top of the furnace and reacted with the falling iron ore. The iron oxides were gradually reduced to liquid iron, commonly known as molten iron. After the restored liquid iron accumulated to a certain extent, it was released from the bottom of the furnace. When smelting iron, limestone was added to create slag. Its purpose was to cause the iron ore ore with a high melting point (its main component was silica) to react with limestone, forming calcium silicate and the like floating on top of the molten iron, forming slag and separating it from the molten iron.
In fact, blast furnaces were not a patent of modern people. As early as the Song Dynasty, this method of smelting iron was popularized.
According to historical records, during the Yuanfeng Period of the Northern Song Dynasty, the Imperial Weapons Supervisor set up blast furnaces on both sides of the Bian River. The red light of smelting iron was reflected in the sun, day and night. At the peak of production, the annual iron and steel production in Northern China alone reached more than 70,000 tons. One must know that the British Empire only reached 70,000 to 80,000 tons of iron and steel production seven hundred years later. At that time, it had already started the Industrial Revolution.
From this, one could see how powerful the Song Dynasty was at that time! It was just that at that time, there were some famous generals and sages missing! If Li Er's team of civil and military officials were sent to the Song Dynasty, perhaps they could really create a super prosperous era!
"Tsk tsk, luckily I traveled to the Tang Dynasty. If I had traveled to the Song Dynasty or after the Song Dynasty, how would I be able to use blast furnaces to show off?"
Li Zexuan's thoughts had already flown off to god knows where, only to hear him muttering to himself.
In some later YY novels, the protagonists traveled to the Song Dynasty or the Ming Dynasty and built blast furnaces to show off. Those were all pure nonsense. If the protagonists really did that, they would be slapped in the face instead of showing off!
Shaking his head, Li Zexuan shook off those messy thoughts in his mind. After pondering for a while, he began to draw a blueprint. At this time, he already had a three-dimensional model of the blast furnace in his mind, and naturally, he had become a human printer.
He intended to completely replicate the blast furnaces that were often used in modern ironworks, and then modify them according to the current conditions of the Tang Dynasty. This was not an easy job.
The structure of blast furnaces was not very complicated. In the "Great Movement" at the end of the 1950s, people all over the country were called to smelt iron and steel. Even some elementary school students, villagers, and non-staple store clerks formed groups to build blast furnaces to smelt iron and steel.
But the structure of blast furnaces was by no means simple. The technical level of blast furnaces in modern China was about the same as that of the Song Dynasty. In theory, they could smelt iron, but the technical mastery was not up to standard, so most of them were left unfinished. Li Zexuan wanted to build a blast furnace, not a defective one. If he wanted to build one, he wanted to build the best one.
Generally, a complete blast furnace was composed of a shell, a throat, a body, a waist, a belly, a hearth, a bottom, a foundation, a lining, and a throat guard plate. The shell referred to the outermost layer of the blast furnace. Its main function was to stabilize the blast furnace and protect the furnace body from leakage.
The body of the blast furnace iron ore was mainly in the body of the blast furnace for indirect reduction.
The throat of the blast furnace was the uppermost part of the blast furnace body. It was shaped like a cylinder. The raw materials for smelting iron were added from the throat of the blast furnace. The gas was also discharged from the throat of the blast furnace.
The throat guard plate referred to the protection plate of the throat of the blast furnace.
The waist of the blast furnace was the largest in diameter. It connected the body and the belly of the blast furnace.
The belly of the blast furnace was in the shape of an inverted cone. It was the main area of the blast furnace for melting and making slag.
The hearth was used for fuel combustion, slag and iron reaction, storage and gas emission. It was shaped like a cylinder.
The bottom of the blast furnace was located at the bottom of the blast furnace. The bottom of the blast furnace was subjected to the static pressure of the charge, slag, and molten iron. It was also subjected to the high temperature, mechanical, and chemical corrosion of 2,000 to 4,500 degrees Celsius.
The main function of the furnace base was to evenly distribute the weight borne by the blast furnace to the ground. Its shape was also gradually expanded from top to bottom. Generally, there were circles or polygons to reduce the uneven distribution of thermal stress.
Time passed bit by bit. Even though Li Zexuan had the super speed of a "humanoid printer", it was already dark when all the internal and external structures of a blast furnace were drawn.
Bang, bang ~!
Just as Li Zexuan was intoxicated by the sea of construction machinery, there were two knocks on the door, followed by a series of footsteps. Li Zexuan frowned at first, but then he relaxed because he knew that Han Yuxi pushed the door and came in just by listening to the footsteps.
Although they had been married for less than a year, the husband and wife had already engraved everything about each other in their hearts, including the sound of footsteps.
"Husband, let's eat something first! It's not a big deal anyway. Your health is the most important! "
Han Yuxi put the food box on another table and turned back to speak to Li Zexuan.
Li Zexuan put away his thoughts, clapped his hands, got up, and walked toward Han Yuxi.
"Haha! Thank you for the meal, my wife! Sigh! I didn't feel hungry at first, but when I smelled the aroma of the food, the gluttonous worm in my stomach began to make a ruckus! Even the God of Cookery in the sky would probably have to admit defeat when he meets my wife! "
Li Zexuan sat down and said with a smile when he saw Han Yuxi take out two plates of fragrant dishes from the food box.
"Husband, stop fooling around! Hurry up and eat! "
Han Yuxi glanced at him and said coquettishly.
"Haha! Eat, eat, eat! Aren't we eating? Wife, do you want to eat some too? "
"No, husband, eat! I've already eaten! "
Han Yuxi responded and then turned her gaze to the several large drawings on the desk.
The complicated and winding lines on the drawings seemed to have a life of their own, outlining a huge and majestic blast furnace. Perhaps it was because Li Zexuan's drawings were too lifelike, but Han Yuxi seemed to be able to feel the terrifying heat in the furnace and couldn't help but take two steps back.
"What? Is my wife still interested in engineering? "
Li Zexuan asked with great interest while chewing the food in his mouth.
"No! I'm just looking around! "
Han Yuxi came back to her senses. She thought for a moment and said, "When I saw that my husband's drawings were so good, I was thinking that if my husband were to use this technique in painting, he wouldn't lose to Yan Shaojian (soon to be Yan Liben)!"
Don't think that engineering drawings were all stiff and unaesthetic lines. The key was to look at the craftsmanship of the person who drew them. The engineering drawings of a skilled person could definitely feel the beauty of a work of art. Li Zexuan now belonged to this kind of person.
"Oh! Leave things like drawing to Yan Shaojian and the others. Your husband doesn't have the time for that! Although I'm outstanding, I can't do everything. I have to leave a way out for others, right? "
Li Zexuan said smugly half-jokingly.
"Pfft ~!"
Han Yuxi covered her mouth and laughed when she heard that. "Husband, how can you praise yourself? Aren't you ashamed? "
Li Zexuan rolled his eyes. "Why is it that my wife can praise him, but your husband can't?"
Han Yuxi shook her head and couldn't be bothered to argue. At this moment, she suddenly thought of something and said, "Oh right! Husband! I helped you lock the drawings you drew last time in the cabinet. Why didn't you use them? Did you forget? "
She was actually referring to the generator blueprints that Li Zexuan had drawn last time.
"Not for the time being! It's almost the end of the year. I'm too lazy to bother with those things! Let's have a peaceful New Year first! "
Li Zexuan replied.
"Yes, yes! In the past, I spent the New Year with Iron Egg and Daddy. Husband, can you bring them over for the New Year this year? "
At the mention of the New Year, Han Yuxi's eyes instantly glowed. Although she was already a wife, she was only 13 or 14 years old. Perhaps she still retained some innocence in her heart and looked forward to the liveliness and joy during the New Year.
"Haha! Why can't I? As long as my wife is happy, I'll even pluck the moon from the sky for you, let alone such a small matter! "
Li Zexuan laughed.
Logically speaking, even if Han Yuxi didn't say it, he would do it when the time came. How could his father-in-law and brother-in-law be alone during the New Year! Naturally, it would be lively when the two families celebrated the New Year together!
"Hehe! The moon in the sky is bare. What do I need it for? But I still thank you for agreeing! "
Han Yuxi said with a smile.
Obviously, she had used the academy's telescope to see the moon before.
"Oh, why are you thanking me as a family? Burp ~! Alright, I'm done eating! Wife, you should go and rest first! I'll sleep a little later tonight! "
Li Zexuan put down his bowl and chopsticks and burped with satisfaction.
Although the general blueprint of the blast furnace was drawn, there were still many details that he needed to consider one by one.
"Husband, can't you draw it tomorrow? There's no need to rush, right? "
When Han Yuxi heard that, she knew that Li Zexuan was going to "work overtime" tonight, so she tried to persuade him.
"Hey! Some things have to be done in one go. If you let go of this breath, it will take a long time to find it again! Wife, you don't have to worry. I'll go and rest when I'm tired. I won't force myself! "
Li Zexuan said softly as he stroked his wife's soft, jet-black hair.
In fact, with his current martial arts cultivation, even if he didn't sleep for three days and three nights, he could still endure it!
"That's good! Husband, you have to keep your word! I won't disturb you anymore! "
Han Yuxi knew that she couldn't persuade Li Zexuan to change his mind, so she compromised.
"Mm! Wife, go and have a rest! "
Li Zexuan said with a smile.
Han Yuxi nodded and left the study with the plate and food box. The study suddenly became quiet again.
"Fire-resistant! First of all, the furnace must be fire-resistant! "
Li Zexuan looked at the blueprint that he had drawn before and was lost in thought. After a while, he muttered to himself.
"Yes! Fire-resistant cement! I'll get the fire-resistant cement by the way! Recently, I'll ask Fubin to go to Shuo Province and get some bauxite back! "
Suddenly, Li Zexuan's eyes lit up and he said excitedly.
Shuo Province, Shanxi. His college roommate in his previous life came from this city. That guy really had a mine at home. It was not a coal mine, nor an iron mine, but a bauxite mine. Li Zexuan went with him to see it during the National Day holiday one year.
Coincidentally, his roommate had bragged to him about the history of Shuo Province, saying that the name "Shuo Province" already existed during the Northern Zhou Dynasty. Although it was renamed to Mayi County during the Sui Dynasty, Li Yuan changed it back during the Tang Dynasty. It could be said that it was a famous historical city.
The current Li Zexuan, relying on his memory, could even mark the detailed location of his roommate's bauxite mine on a map!
"Hehe! Old classmate, I'm sorry, but let me borrow your mine first! You don't mind, right? "
Li Zexuan was like a neurotic, talking to "air".
Bauxite was also known as high-alumina clay. The main minerals were diaspore, boehmite, gibbsite, kaolinite, etc. It had a high alumina content. After grinding and calcining with limestone, it became fire-resistant cement. It was directly pressed into bricks and could be fired into fire-resistant bricks. The lowest refractory temperature could reach more than 1,500 degrees!
In fact, the small blast furnaces of the Song Dynasty were generally built directly with clay, but they did not have a long lifespan. Li Zexuan wanted to build a blast furnace that was closest to the ones used in modern steel factories, so this kind of high-grade fire-resistant material used in modern steel furnaces was naturally used!
What's more, he still had the bauxite mine that his old classmate "left" for him! It would be a waste not to use it!
…
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