Otaku Engineer in Great Tang Dynasty

"Master! You haven't slept for two nights? Then go and rest! Let's talk about the ironworks later!"

After finally recovering from the shock, Fu Bo "captured" the other meaning of Han Yuxi's previous words, and the most important meaning, he quickly said to Li Zexuan.

Li Zexuan shook his head and said: "Of course it was not completely sleepless. I had a nap in the middle! Let's not talk about this. Fu Bo, you always look at the drawings. Let's discuss what's wrong. We must mention the ironworks as soon as possible. schedule!"

"OK then!"

Seeing Li Zexuan's insistence, Fubo knew that he couldn't persuade him, so he lowered his head and started looking at the drawings.

The drawings given by Li Zexuan are very particular about the order of placement. First overall, then specific. The first thing Fober saw is the overall layout of the ironworks in the future, followed by the overall structure of each part, and then It is the specific structure diagram of some key components.

As the drawings turned page by page, Fober's mind gradually came to a huge ironmaking factory that was very different from the style of this era (working for a lifetime of engineering, this kind of ability to visualize shapes, Fober still has ), a towering iron furnace stands in the center of the factory, and pipes are drawn from the body of the blast furnace, like the rhizomes of old trees, densely entrenched around them, and two large chimneys are towering into the clouds, waiting to be inserted into the clouds. , The smoke is constantly spitting towards the sky, and the sound of various machines in the workshop is booming, endless!

Fu Bo was shocked. Obviously, Li Zexuan, the iron smelter, was not making a fuss. Its scale was definitely one of the best in the entire Tang Dynasty! It's just that this steelmaking method makes him feel so familiar with it?

"Master! Why does this look like shaft ironmaking?"

Fubo suddenly remembered and said.

China is the first country in the world to use shaft furnaces to make iron. In ancient my country, the shaft furnace was mainly used for smelting pig iron, and the iron shaft furnace was developed from the copper shaft furnace. In the late Spring and Autumn Period, a shaft furnace smelting pig iron method appeared, but this method was not completely popularized until the Northern Song Dynasty.

Shaft furnace ironmaking is an economical and effective ironmaking method. Charge from the upper side and blast from the lower part to form 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 therein also reduces iron oxide. In this way, the thermal energy and chemical energy of the combustion are fully utilized at the same time. The charge in the lower layer is gradually reduced to melt, and the charge in the upper layer slowly drops from the top of the furnace, and the charge is preheated to reach a higher temperature.

Blast furnace ironmaking is born out of shaft furnace ironmaking, but some structural optimizations make its ironmaking efficiency and quality far superior to shaft furnace ironmaking!

Li Zexuan smiled and said: "This is not entirely shaft furnace ironmaking. Fu Bo, if you look carefully, you should be able to tell the difference! I call this kind of ironmaking furnace a blast furnace!"

Fubo closed his eyes for a moment, then opened his eyes and said: "There are indeed many differences! But the old man doesn't know whether these differences are good or bad!"

Li Zexuan believed in himself: "Of course it is good!"

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

Air preheating is the most critical step in improving ironmaking efficiency in modern steel production. High air temperature is also one of the main technical features of modern blast furnace ironmaking.

First of all, part of the heat required for blast furnace smelting is the combustion heat released by the combustion of the fuel in the hearth, and the other part is the physical heat brought by the high-temperature hot air. The more heat the hot air brings into the blast furnace, the less fuel combustion heat is required, that is, the lower the fuel consumption. Therefore, increasing the wind 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 whirling area has a higher temperature and the hearth has sufficient heat, which is beneficial to increase the pulverized coal combustion rate and increase the amount of coal injection. Reduce the focal ratio.

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

Uncle Fu seemed to be a little enlightened, he nodded thoughtfully, and said: "What the young master said seems quite reasonable, maybe you can give it a try!"

Li Zexuan smiled and said: "In fact, the benefits of this blast furnace are far more than this. Fu Bo, you will slowly notice in the future! The immediate task is to build this iron smelter first! As for the interior of the furnace, I plan to use Shuozhou. On the side...the clay mine is used as refractory material, and I will talk about it after Xiaobin transports the soil back! Fubo, your main task now is to first see what difficult problems can be solved in the construction of the iron plant according to this blueprint? "

Li Zexuan did not intend to build the first iron-making blast furnace. The blast furnace he planned on the drawings had an effective volume of only over a hundred cubic meters. In modern society, the world’s largest iron-making blast furnace is Shagang Hua in China. Sheng’s blast furnace has an effective volume of 5860 cubic meters ~ www.ltnovel.com ~ an annual output of nearly 30 million tons of steel!

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

"Um...it shouldn't be a big problem, it's troublesome at best! The old man started to call craftsmen to plan this as soon as possible recently. Master, please take a good rest first and don't exhaust your body!"

Uncle Fu flipped through the drawings again, and after serious consideration for a long time, said.

Li Zexuan finally breathed a sigh of relief. In fact, he is definitely lucky compared to most traversers, because he has a workshop with many excellent craftsmen around him, and he only needs to draw out many new ideas. The craftsmen behind him will try their best to realize his thoughts, and he himself just spends a lot of time drawing drawings!

"Haha! Thank you Fubo for your concern, my health is okay! But you must pay attention to your health when you are old! Don't be too tired!"

Li Zexuan smiled gently and said.

Uncle Fu shook his head, then got up and said: "Master, don't worry about old age, my old bones are getting more and more vigorous. If I lie in bed all day long, I will lie down and get sick. Master, you can rest! The workshop has been arranged!"

Li Zexuan quickly got up to say goodbye.

After a while, Fubo disappeared from the eyes of the husband and wife, and only heard Han Yuxi say: "The grandfather hasn't gone to rest obediently yet, does he have to look for his concubine..."

Seeing that the three characters were not finished, Li Zexuan had already blocked her mouth with his hands, "Hey! You! What are you talking about? Walk around! Let's go back, sleeping alone is not like sleeping! Haha!"

"Um...Don't~!"

...

https://

Genius remembers this site address in one second:. Mobile version reading URL: