"Young Master! You haven't slept in two nights? Then go and rest! We'll talk about the ironworks later! ”

Finally recovering from the shock, Fu Bo "captured" another layer of meaning in Han Yuxi's previous words, and it was also the most important layer of meaning, and he hurriedly said to Li Zexuan.

Li Zexuan shook his head and said, "Of course I didn't sleep at all, I had a nap halfway!" Let's not talk about this for a while, Fubo, you should look at the drawings first, and if there is anything wrong, let's discuss it together, and the matter of the ironworks must be put on the agenda as soon as possible! ”

"That's... All right! ”

Seeing Li Zexuan so insistent, Fu Bo knew that he couldn't persuade him, so he lowered his head and began to look at the drawings.

The drawings given by Li Zexuan, the order of placement are very particular, first the whole, and then the specific, the first thing Fu Bo saw was the overall layout of the ironworks in the future, then the overall structure of each part, and then the specific structure of some key components.

As the drawings turned page by page, Fauber's mind gradually emerged a huge ironmaking factory that was very different from the style of this era (after a lifetime of engineering, this kind of ability to appear in pictures, Fauber still has it), a towering iron furnace stood in the center of the factory, pipes led out of the body of the blast furnace, just like the rhizomes of old trees, densely entrenched around, two large chimneys were even more towering into the clouds, eager to insert into the clouds, and were constantly spitting smoke towards the sky, the sound of various machines in the workshop, Boom, boom, boom!

Fu Bo was shocked in his heart, obviously Li Zexuan's ironmaking factory was not making a small fuss, its scale was so large that it was definitely one of the best existences in the entire Tang Dynasty! It's just that this steelmaking method, how can he feel familiar with it?

"Young Master! How does this look a bit like shaft furnace ironmaking? ”

Fauber suddenly remembered and said loudly.

China was the first country in the world to use shaft furnaces to make iron. In ancient China, shaft furnaces were mainly used for smelting pig iron, and iron-making shaft furnaces were developed from copper-smelting shaft furnaces. At the end of the Spring and Autumn Period, the method of shaft furnace smelting and casting pig iron appeared, but this method was not completely popularized until the Northern Song Dynasty.

Shaft furnace ironmaking is an economical and effective method of ironmaking. Charging from the top and blowing air from the bottom creates a relative movement of the charge falling and the gas rising. The high-temperature gas produced by combustion rises through the material layer and transfers heat to the charge. The carbon monoxide contained in it also has a reducing effect on iron oxide. In this way, the thermal energy and chemical energy of combustion are fully utilized at the same time. The lower charge is gradually reduced to the point of melting, and the upper charge is slowly lowered from the top of the furnace and the charge is preheated to a higher temperature.

Blast furnace ironmaking was born from shaft furnace ironmaking, but its optimization in some structures makes its ironmaking efficiency and ironmaking quality far better than that of shaft furnace ironmaking!

Li Zexuan said with a smile: "This is not exactly shaft furnace ironmaking, Fu Bo, you should be able to tell the difference if you take a closer look!" I call this iron-making furnace a blast furnace! ”

Fauber closed his eyes and pondered for a moment, then opened his eyes and said, "There are indeed many differences! But the old man didn't know whether these differences were good or bad! ”

Li Zexuan said confidently: "Of course it's good!" ”

As he spoke, he pointed to a drawing and said, "For example, the air inlet of this blast furnace, the section before it finally enters the furnace, I put it together, and there is a fire pool isolated from the air inlet below, which contains coal, and the air is heated to a very hot point before entering the furnace, and it can even melt iron directly!" In this way, the efficiency of ironmaking will be greatly improved! ”

Air preheating, which is the most critical step in modern steel production to improve the efficiency of ironmaking, is also one of the main technical characteristics of modern blast furnace ironmaking.

First of all, the heat required for blast furnace smelting is partly the combustion heat released by the fuel in the furnace cylinder, and the other part is the physical heat brought in by the high-temperature hot air. The more heat that the hot air brings into the blast furnace, the less heat of fuel combustion is required, i.e. the lower the fuel consumption. As a result, increasing the air temperature can significantly reduce fuel consumption and production costs.

In addition, increasing the air temperature also helps to increase the theoretical combustion temperature before the tuyere, so that the tuyere gyration area has a higher temperature, and the furnace cylinder has abundant heat, which is conducive to improving the combustion rate of pulverized coal, increasing the amount of coal injection, and further reducing the coke ratio.

Therefore, air preheating is the key technology for blast furnace to realize large-scale coal injection operation, and it is also an extremely important technological progress in the history of blast furnace ironmaking. In Li Zexuan's impression, at least before the Industrial Revolution, the world did not master this technology.

Fu Bo seemed to have some understanding, he nodded thoughtfully, and said, "What the young master said seems to be quite reasonable, maybe you can give it a try!" ”

Li Zexuan said with a smile: "In fact, the benefits of this blast furnace are far more than this, and you will slowly notice it in the future!" The immediate priority is to build this ironworks first! As for the inside of the furnace, I'm going to use the one from Shuozhou... The clay mine is used as refractory materials, and it will be said after Xiaobin transports the soil back! Fauber, your main task now is to see what are the difficult problems in the construction of the ironworks according to this drawing. ”

The first iron-making blast furnace, Li Zexuan did not plan to build a very large, he planned the blast furnace on the drawings, the effective volume is only about 100 cubic meters, in modern society, the world's largest effective volume of iron-making blast furnace is China Shagang Huasheng blast furnace, the effective volume of 5860 cubic meters, the annual output of nearly 30 million tons of steel!

So his ironworks are just a small workshop in modern times! But in ancient times, it was definitely a giant existence!

"Hmm...... It shouldn't be a big problem, at most it's just a little troublesome! The old man recently started to gather craftsmen as soon as possible to plan this matter, young master, you have a good rest first, don't exhaust your body! ”

Fauber flipped through the drawings again, and after pondering carefully for a long time, he said.

Li Zexuan finally breathed a sigh of relief, in fact, compared to most traversers, he was definitely lucky, because he had a workshop, and there were many extremely good craftsmen around him, and he only needed to draw drawings for many new ideas, and the craftsmen behind him would try their best to realize his thoughts, and he himself just bothered to draw drawings!

"Huh! Thank you Forber for your concern, I'm fine! But you should also pay attention to your body when you are old! Don't get too tired! ”

Li Zexuan smiled mildly and said.

Fu Bo shook his head, then got up and said: "Young master, don't worry about old age, my old bones are moving more and more, if I lie in bed all day, I will lie sick instead, young master, you can rest!" The Decay Society's workshop has been arranged! ”

Li Zexuan hurriedly got up to say goodbye.

After a while, Fu Bo disappeared from the vision of the husband and wife, only to hear Han Yu say regretfully: "Xianggong still doesn't go to rest obediently, do you have to go to find .....?"

Before she finished speaking, Li Zexuan had already blocked her mouth with his hand, "Hey! You! What are you talking nonsense again? Let's go! Let's go back, it's better to sleep alone than to sleep! Ha ha! ”

"Hmm.... No~! ”

................

The second update!

(End of chapter)