After coming out of the palace, Li Zexuan went back to Yunshan directly. 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!"

After returning 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, then said in a non-serious manner.

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 furnace ironmaking, if you want to improve ironmaking efficiency, you must build a blast furnace!"

In the study room, Li Zexuan faced a large piece of white paper on the desk and muttered to himself.

Industrially, 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 reactions that occur in the blast furnace are mainly divided into three parts. The first part is the process of preparing the reducing agent, and the second part is the main process of iron smelting.

Principle, 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 silicon dioxide) to react with the limestone to generate calcium silicate floating on the molten iron to form

The slag is 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 Ordnance Supervisor set up blast furnaces on both sides of the Bianhe River. The red light of ironmaking shone 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 the British Empire seven hundred years to reach an annual output of 700,000 to 80,000 tons of steel. By that 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 fewer 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, perhaps a super prosperous age could really be created.

Maybe!

"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 could I use a blast furnace to smelt iron to show off?"

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 built a blast furnace to smelt iron in the Ming Dynasty to show off. These 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 for a moment and began to draw. 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 furnace commonly used in modern iron smelting plants, and then modify it 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. Even some primary school students, villagers from the production team, and grocery store salesmen formed iron-making groups to build blast furnaces.

Come to 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, it is possible to make iron, but the technical mastery is not up to standard, so most of them are ignored. Li Zexuan, he wants to

The blast furnace we build is not a defective product. We must build the best one possible.

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. The furnace shell refers to the outermost layer of the blast furnace.

, the main function is to stabilize the blast furnace masonry 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. Iron-making raw materials are added through the furnace throat, and 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. Its shape also gradually expands from top to bottom. It is generally round or polygonal 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 the entire internal and external structure of a blast furnace was 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.

, I knew 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.

"Mr. 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 and said.

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 this food, the greedy bugs in my stomach started to make noises! The god of cooking in the sky will 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? Your wife is still interested in engineering?"

Li Zexuan asked with great 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 will 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 category now.

breed 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 without leaving 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, "Why can you 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! 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 Chinese New Year with Tiedan and Dad. Can my husband bring them over to celebrate the Chinese New Year together this year?"

Mentioning the New Year, Han Yuxi's eyes instantly glowed with a dazzling look. 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 liveliness 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 and said.

To be honest, even if Han Yuxi didn't say it, he would still do it when the time comes. His father-in-law and brother-in-law are the only ones who celebrate the New Year, so how can that be done? Naturally, it is more lively when the 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.
To be continued...