After coming out of the palace, Li Zexuan went directly back to Yunshan. He had to quickly draw the drawings of the equipment needed for ironmaking in the past two days, because these things were not easy to build at all.
"Madam, I will be in seclusion in the study for the past two days. If there is nothing urgent, please don't let anyone disturb me!"
Back home, Li Zexuan said to Han Yuxi.
Yunshan Villa is good in this way, because it is far away from the main city, usually inaccessible, very quiet, and the mountains and rivers here are beautiful, it is a treasure place for self-cultivation!
"Yeah! But please don't exhaust yourself, my husband. Our family doesn't lack anything now, so why do we need to work so hard?"
Han Yuxi obviously understood what Li Zexuan was going to do. This was not the first time a similar situation had happened, so she said with a worried look.
"Haha! Don't worry, madam, with your husband's physique, there is no way he will be exhausted! I don't believe that when my husband is done with his work, he will fight me for another 300 rounds!"
Li Zexuan smiled and pinched Han Yuxi's pretty face, and then said seriously.
Of course, even though he said this, in his heart he still cared about his wife.
"Ms. sir~!"
Han Yuxi was ashamed and angry. She stamped her feet and snarled, but Li Zexuan had already slipped away!
………………………
"Blast furnaces make iron. If you want to improve the efficiency of iron making, you must build a blast furnace!"
In the study, Li Zexuan muttered to himself while facing a large piece of white paper on the desk.
In modern industry, iron-making methods include blast furnace method, direct reduction method, smelting reduction method, plasma method, etc. Blast furnace iron-making is the main method of iron-making in modern society, and its output accounts for more than 95% of the world's total pig iron production.
Blast furnace ironmaking is a complex process. The raw materials it uses are iron ore, limestone and coke. The reaction that occurs in the blast furnace is mainly divided into three parts. The first part is the process of preparing the reducing agent, the second part is the main principle of iron smelting, and the third part is the process of removing impurities and forming slag. However, the iron smelted in the blast furnace is not pure and contains a small amount of impurities, so it is called pig iron.
When making iron, the raw materials iron ore, coke and limestone are added to the blast furnace (iron-making furnace) in layers in a certain proportion. A large amount of oxygen-rich air heated by the hot blast furnace is blown into the blast furnace from the air inlet, causing the coke to burn to generate carbon dioxide. It then reacts with the hot coke in the upper layer and is reduced to carbon monoxide;
Carbon monoxide is added from the top of the furnace and reacts with the falling iron ore. The iron oxides are gradually reduced to liquid iron, commonly known as molten iron. After the reduced liquid iron accumulates to a certain extent, it is released from the bottom of the furnace. The limestone added during ironmaking acts as a slagging agent, with the purpose of causing the gangue with a high melting point in the iron ore (the main component of which is silica) to react with the limestone to generate calcium silicate floating on the molten iron. Slag is formed and separated from the molten iron.
In fact, blast furnace ironmaking is not a patent of modern people. This ironmaking method was popularized as early as the Song Dynasty.
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 Bianhe River. The red light of ironmaking reflected the sun day and night. At the peak of production, the annual steel output in North China alone reached more than 70,000 tons; you must know that it took a full seven hundred years for the British Empire to reach the annual steel output of 700,000 to 80,000 tons, by which time it had already begun the industrial revolution.
This shows how powerful the Song Dynasty was at that time! It’s just that there were less famous ministers, fierce generals and sage kings at that time! If Li Er's team of civil and military ministers were sent to the Song Dynasty, maybe they could really create a super prosperous age!
"Tsk tsk, fortunately, young master, I have traveled to the Tang Dynasty. If I had traveled to the Song Dynasty or after the Song Dynasty, how can I show off by making iron in a blast furnace?"
Li Zexuan's thoughts had flown to nowhere, and he could only hear him muttering to himself.
In some time-travel YY novels from later generations, the protagonist traveled to the Song Dynasty and Ming Dynasty and built a blast furnace to smelt iron to show off. Those are all nonsense. If the protagonist really wants to do that, he can only pretend to be fake and get slapped in the face!
Shaking his head to get rid of the messy thoughts in his mind, Li Zexuan pondered slightly and began to draw the drawings. At this time, he already had a three-dimensional model of the iron-making blast furnace in his mind, and he naturally became a humanoid printer.
He planned to completely replicate the blast furnaces commonly used in modern ironworks, and then transform them according to the existing conditions of Datang. This was not an easy task.
The structure of a blast furnace cannot be said to be complicated. The "Great Movement" in the late 1950s called on people across the country to make steel. Some elementary school students, villagers from the production team, and salespeople in grocery stores formed iron-making groups to build blast furnaces. Come and make steel and iron.
But the structure of the blast furnace is definitely not simple. The technical level of the blast furnaces in modern China is about the same as that of the Song Dynasty. In theory, they can make iron, but the technology is not mastered, so most of them are left alone. The blast furnace Li Zexuan wants to build is not a defective product. If it is to be built, it must be the best.
Generally, a complete blast furnace consists of a furnace shell, a furnace throat, a furnace body, a furnace waist, a furnace belly, a furnace hearth, a furnace bottom, a furnace base, a furnace lining, and a furnace throat guard plate. The furnace shell refers to the outermost layer of the blast furnace. Its main function is to stabilize the blast furnace and protect the furnace body from leakage;
Furnace body, blast furnace iron ore is mainly reduced indirectly in this area of the furnace body;
Furnace throat, the uppermost part of the blast furnace body is the furnace throat. It is shaped like a cylinder, the iron-making raw materials are added through the furnace throat, and the gas is discharged from the furnace throat;
Furnace throat guard plate refers to the protective plate of the furnace throat;
The furnace waist is the largest diameter part of the blast furnace, which connects the furnace body and furnace belly;
The furnace belly, which is in the shape of an inverted frustum, is the main area for melting and slagging in the blast furnace;
The hearth is used for fuel combustion, slag-iron reaction, storage and exhaust gas, and is shaped like a cylinder;
The furnace bottom is located at the bottom of the blast furnace. The furnace bottom bears the static pressure of the charge, slag and molten iron, and is also subject to high temperatures of 2000 to 4500°C, mechanical and chemical erosion;
The main function of the furnace base is to distribute the weight of the blast furnace evenly to the ground, and its shape gradually expands from top to bottom. Generally there are 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 after all the structures inside and outside a blast furnace were drawn.
"Bang bang~!"
Just when Li Zexuan was immersed in the sea of construction machinery, there were two knocks on the door, followed by another set of footsteps. Li Zexuan frowned at first, and then relaxed, because he just listened to the footsteps. , and knew that it was Han Yuxi who opened the door and came in.
Although they have been married for less than a year, the couple has already engraved everything about each other in their hearts, including the footsteps.
"Ms. sir, let's eat something first! Anyway, it's not too late. Your health is the most important thing!"
Han Yuxi placed the food box on another table and turned back to Li Zexuan.
Li Zexuan put away his thoughts, clapped his hands, stood up and walked towards Han Yuxi.
"Haha! Thank you, Madam, for the meal! Hey! I didn't feel hungry at first, but when I smelled the aroma of the food, the greedy bugs in my stomach started to make noises! When the God of Cooking in the sky meets the Madam, he will probably bow down to me!"
Li Zexuan sat down and said with a smile when Han Yuxi took out two plates of fragrant dishes from the food box.
"Master, you are causing trouble! Eat it quickly!"
Han Yuxi glanced angrily and said softly.
"Haha! Eat, eat, eat! Isn't this eating? Madam, do you want to come and eat some too?"
"No, sir, please eat! I have already eaten!"
Han Yuxi responded, then turned her attention to the several large drawings on the desk.
The complicated and winding lines on the drawing seemed to be alive, outlining a huge and majestic blast furnace. Maybe Li Zexuan's drawing was too lifelike. Han Yuxi seemed to be able to feel the terrifying heat in the furnace, which made him couldn't help but yearn for it. He took two steps back.
"What? Madam, are you still interested in engineering?"
Li Zexuan asked with interest while chewing the food in his mouth.
"No! I'm just taking a look!"
Han Yuxi came back to her senses, thought for a moment, and then said: "I saw that my husband's drawings were so good, and I was thinking that if my husband used this technique in painting, he would definitely not lose to Yan Shaojian (who is about to be a young master). Supervisor Yan Liben)!"
Don't think that engineering drawings are just stiff and aesthetically pleasing lines. The key is to look at the craftsmanship of the person who drew them. Engineering drawings of highly skilled people can definitely feel the beauty of works of art. Li Zexuan belongs to this now. kind of people.
"Hmm! Just leave things like painting to Shaojian Yan and the others. Your husband, I don't have that spare time! Although we are excellent, we can't do everything. We have to leave a way for others to survive, right~?"
Li Zexuan said half-jokingly.
"Puch~!"
When Han Yuxi heard this, she covered her mouth and said with a smile: "Mr. sir, how can you praise yourself? Are you ashamed of yourself?"
Li Zexuan rolled his eyes, "How come you can praise me as a wife, but you can't praise me as a husband?"
Han Yuxi shook her head and was too lazy to care. Then she suddenly remembered something and said: "By the way! Mr. Sir! I locked those drawings you drew last time in the cabinet for you, but you never used them? Did you forget them?" ?”
What she was talking about was actually the generator drawings Li Zexuan drew last time.
"No need for now! It's almost the New Year's Eve, and I'm too lazy to bother with that! Let's have a peaceful New Year first!"
Li Zexuan replied.
"Hmm! In the past, I spent the New Year with Tiedan and Dad. Can my husband bring them over to celebrate the New Year with me this year?"
Mentioning the New Year, Han Yuxi's eyes instantly glowed with dazzling light. Although she was a woman, she was still only thirteen or fourteen years old. She might still retain some innocence in her heart, looking forward to the excitement and joy of the New Year.
"Haha! What's wrong with this? As long as the lady is happy, don't talk about such trivial matters, even if you want the moon in the sky, my husband will pick it back for you~!"
Li Zexuan laughed.
To be honest, even if Han Yuxi didn't say it, he would still do it when the time came. His father-in-law and brother-in-law were the only ones celebrating the New Year, so how could that be possible? Naturally, it seems lively when two families celebrate the New Year together!
"Hehe! The moon is bare that day, what do you want me to do? But I still thank you for agreeing!"
Han Yuxi smiled and said.
Apparently, she had seen the moon before using the academy's telescope.
"Well, why are the whole family thanking each other? Hiccup~! Okay, I'm done eating! Madam, you go to rest first! I'll go to bed a little later tonight!"
Li Zexuan put down the bowl and chopsticks, burped with satisfaction and said.
Although the general drawing of the iron-making blast furnace was drawn, there were still many details that needed to be considered one by one.
"Ms. sir, can't you paint again tomorrow? There's no need to rush now, right?"
When Han Yuxi heard this, she knew that Li Zexuan would have to "work overtime" tonight, so she tried to persuade him.
"Hey! Some things have to be done in one go. If you let go, it will take a long time to get it back next time! Don't worry, madam, I will take a rest when I'm sleepy. I won't force myself!"
Li Zexuan touched his wife's black and smooth hair and said softly.
In fact, with his current level of martial arts training, he can still endure it even if he doesn't sleep for three days and three nights!
"Okay! My husband, you must keep your word! I won't disturb you anymore!"
Han Yuxi knew that Li Zexuan's decision could not be persuaded back, so she compromised.
"Well! Madam, go and have a rest!"
Li Zexuan said with a smile.
Han Yuxi nodded and left the study with the dinner plate and food box. The study suddenly became quiet again.
"Fire-resistant! First of all, the inside of the stove must be fire-resistant!"
Li Zexuan looked at the structural diagram he had drawn before and was in a daze. After a while, he murmured to himself.
"Yes! Refractory cement! Get out the refractory cement by the way! Recently, I asked Fubin to go to Shuozhou quickly and get some bauxite back!"
Suddenly, Li Zexuan's eyes lit up and he said excitedly.
Shuozhou, Shanxi, his college roommate in his previous life came from this city. That guy really had a mine at home, not a coal mine or an iron mine, but a bauxite mine. Li Zexuan went with him during the National Day holiday one year. Saw it live.
Coincidentally, his roommate once boasted to him about the history of Shuozhou, saying that the name "Shuozhou" had already existed in the Northern Zhou Dynasty. Although it was renamed Mayi County in the Sui Dynasty, Li Yuan changed it back to Mayi County in the Tang Dynasty. Yes, it can be said to be a historic city.
Now Li Zexuan, relying on his memory, can even mark the detailed location of the bauxite mine at his roommate's house in his previous life on the map!
"Hey! Old classmate, I'm sorry, but I want to lend you your mine first! You don't mind, right?"
Li Zexuan talked to "Air" like a neurotic.
Bauxite is also called high-aluminum clay. The main minerals are diaspore, boehmite, gibbsite and kaolinite. This stuff has high alumina content. After grinding and calcining the limestone, it becomes refractory cement; directly Pressed into bricks, they can be fired into refractory bricks, with the lowest refractory temperature reaching more than 1,500 degrees!
In fact, the small blast furnaces in the Song Dynasty were generally built directly from clay, but their lifespan was not long. Li Zexuan wanted to build a blast furnace that was closest to the one used in modern steel plants, so this modern steelmaking furnace used high-grade refractory Just use the materials as long as they are available!
What's more, he still has a bauxite mine "left" for him by his old classmates! It’s useless if you don’t use it!
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