Otaku Engineer in Great Tang Dynasty

Remember in one second [End of the God Station] Mobile phone user input address: m.xinwanben.com

"Master, I'm back!"

Lantian County, Yunshan Courtyard.

Han Yuxi pushed the door open from the outside, saw Li Zexuan who had just finished practicing swords in the front yard, and said with a smile.

"Why did the lady come back so quickly today?"

Li Zexuan took the handkerchief handed by Xiaohe, wiped the sweat from his forehead, and asked curiously.

Since Ye Fashan was trapped in Guancheng, Han Yuxi went to the next courtyard every morning every morning to chat with the old lady Ye, mainly because she was worried that the old man would be too worried, and over time, he would get a heart disease!

"Hehe! Xianggong, didn't you ask? Yesterday, you told your grandmother that Guancheng County was broken, and Fashan and the others were also relieved. Grandmother's mood instantly improved. Where else do you need a concubine to comfort her? Concubine. When I just went, my grandmother and grandfather had already gone out, and I heard from the servant girl that they went to the academy early in the morning!"

Han Yuxi smiled and said.

It is said that after getting out of Guancheng County this time, Ye Fashan did not return to Beijing with the army. After saying goodbye to Xiaoyuer, Tiedan, Meng Wenhao, Liu Rengui and others, he left for Nanyang. He planned to go home and say goodbye to his parents. , then went to the south to visit famous mountains and rivers, visit the hermit master, and pursue his own way!

As for credit or something, he doesn't care at all!

Li Zexuan smiled and said, "Grandfather, grandmother, and the others are also at the age of care. This kind of thing happened a while ago, and it really made them worry a lot. In the end, I didn't expect Fa Shan to accompany them. Going to Guancheng with Xiaoyuer, this child is kind-hearted, the Ye family is really a successor, in fact, grandfather and the others should be happy for Fashan!"

Han Yuxi asked curiously, "Is there a lot of respect for Fashan?"

Li Zexuan now has hundreds of students, and she has never seen Li Zexuan value a person so much.

Li Zexuan thought to himself, of course he valued the future leaders of the world, but he couldn't say such words. After thinking about it, he said: "Fashan has a very good aptitude and a high understanding, which is different from other rich children. , He can endure hardships very well, such a person, it is difficult to succeed in the future, so my husband said that the Ye family is considered a successor!"

Han Yuxi smiled and nodded, then she rolled her eyes and said, "Master, Tie Dan has helped a lot with the army this time. Do you think the sage will reward him?"

After all, this is the real sister. When Tidan went to Guancheng, Han Yuxi was very worried every day. Now that Tidan is about to return triumphantly, Han Yuxi, who is a sister, starts to worry about whether her brother can get the reward he deserves. !

Li Zexuan patted his wife's shoulder and replied, "Madam, don't worry! Your Majesty has always been clear about rewards and punishments, and Tie Dan's credit is obvious to all, and His Majesty will never turn a blind eye. In fact, I don't want to see Your Majesty give Tie Dan too much. The reward, he is still young, if the reward is too heavy, I am afraid that he will lose the motivation to make progress!"

Han Yuxi said thoughtfully: "Yeah! Xianggong is right! But Tie Dan's credit this time is not big, and the concubine thinks that he should only get some money!"

"Master, Master~!"

At this moment, Song Xiaosi's shouts came from outside the courtyard gate.

Li Zexuan turned around and said, "What's the matter? Come in and talk~!"

Seeing that Li Zexuan had business affairs, Han Yuxi went into the house.

Song Xiaosi entered the courtyard gate, walked to Li Zexuan's side, bowed and said, "Young master, the drainage channel next to the Ba River has already drained all the water in the Meicun River section. Today the dam starts to build its foundation, do you want to go and have a look? ~!"

Li Zexuan was shocked when he heard the words, and said with joy on his face: "Okay! You go first! I'll change my clothes and I'll be there later."

The reason why Li Zexuan didn't personally participate in the battle of Guancheng was mainly because he was concentrating on the Bahe dam. In the past two weeks, with the joint efforts of him, Mo Huai and Yan Shaoning, he has conquered a lot of Among the engineering problems in the dam construction process, the most important thing is that Li Zexuan solved one of the most critical problems in the reinforced concrete dam construction plan - steel making!

Next to the iron factory in the workshop, another small steel factory appeared.

The ancients did make steel, and artificially tempered steel appeared in China in the late Spring and Autumn Period (before 476 BC). By the Eastern Han Dynasty, the steelmaking technology had been mastered. The most commonly used are fried steel and steel-making technology.

The so-called fried steel is to heat the pig iron until it is melted or basically melted, then stir it in the furnace, and use the oxygen in the air to carbonize the pig iron to get the steel. The quality of the steel produced by this method is not high.

As for the steelmaking process, the block iron is repeatedly heated, folded and forged to make the structure of the steel denser, the composition of the steel body more uniform, reduce impurities, thereby improving the quality of the steel, so the quality of the swords made of the steelmaking is very high. high.

Although the quality of steel produced by 100 steelmaking is high, this method has low yield and high cost, which is difficult to meet the needs of industrial development.

The method adopted by Li Zexuan is the converter steelmaking method, which was invented by H. Bessemer in England in 1856. The oxidant used in the process is oxygen. Air is blown into the molten pig iron to oxidize impurities such as silicon and manganese. In the process of oxidation, a lot of heat is released (containing 1% silicon can increase the temperature of pig iron by 200 degrees Celsius), which can make the furnace reach a high enough temperature.

Converter steelmaking is carried out in a converter. The shape of the converter is like a pear, with refractory bricks on the inner wall, and many small holes (tuyere) on the side of the furnace. The compressed air is blown into the furnace from these small holes, which is also called a side-blown converter. At the beginning, the converter is horizontal, injecting inward

Liquid pig iron at 1300 degrees Celsius and a certain amount of quicklime are added, then air is blown and the converter is turned to stand upright.

At this time, the violent reaction on the surface of the liquid pig iron makes iron, silicon and manganese oxidize (feo, sio2, mno) to generate slag, and the convection of the molten steel and the slag makes the reaction spread throughout the furnace. After a while, when only a small amount of silicon and manganese remain in the molten steel, the carbon begins to oxidize, producing carbon monoxide (exothermic) and causing the molten steel to boil violently.

A huge flame appeared at the mouth of the furnace due to the burning of the overflowing carbon monoxide. Finally, phosphorus also oxidizes and further produces ferrous phosphate. Ferrous phosphate reacts with quicklime to form stable calcium phosphate and calcium sulfide, which together become slag.

When the phosphorus and sulfur gradually decrease, the flame retreats, and the brown steam of iron tetroxide appears at the furnace mouth, it indicates that the steel has been smelted.

The steel produced by this method is superior to the stir-fried steel method and the hundred-steel-making method, both in terms of output and quality!

When he saw a large amount of high-quality steel being produced at the converter mouth, Mo Huai said it was incredible. You must know that their Mo family is not only good at engineering construction, but also good at steelmaking and sword casting. It turned out that Li Zexuan was not a member of the Mo family. , to have such a heaven-defying steelmaking skill, Mo Huai couldn't help but be more convinced of Li Zexuan!

After solving the steel-making process, Li Zexuan tried mixing steel bars with cement, which was as strong as a boulder.

It is precisely because these basic problems have been solved that the foundations of the dams are built today.

After changing out of the training clothes, Li Zexuan wore a white Confucian shirt and came to the bank of the Bahe River. From a distance, he could see the black workers on both sides of the riverbank.

In order to catch up with the progress of the project, Li Zexuan adopted the crowd tactics, recruiting more than 10,000 craftsmen and civilians, just like the last time he built the Yanhuang Academy.

This is a typical lack of time, the number of people to make up, anyway, he has money!

"Master, you are here~!"

Mo Huai's eyes were sharp, and after realizing that Li Zexuan was coming, he hurriedly greeted him and said.

"Yeah! Mr. Mo, I heard that the foundation of the dam is going to be built today, so I'll come and see!"

Li Zexuan smiled and looked at the Bahe in front of him.

Due to the drainage canal next to it, the river water in this section has been diverted, revealing the yellow riverbed. The soft sand on the surface of the riverbed has been dug up by craftsmen and people. Seeing this scene, he felt a sense of pride in his chest, and he said with emotion:

"After several months, we finally passed the most difficult time. Who would have thought that we could cut off the surging Bahe river in such a short period of time? Now we not only cut it off, but also from the middle. Build a dam with a width of several feet, and from now on, the moat will become a thoroughfare~!"

Hearing this, Mo Huai laughed and said, "In the final analysis, the mountain chief's plan is appropriate. Moreover, the mountain chief has invested so much manpower, material resources, and financial resources. If he can't get results as soon as possible, it will make this old man incompetent~!"

Li Zexuan hurriedly said: "Mr. Mo, why did you say this, during this period of time, you have been the hardest worker! When the dam is completed, you will be the hero of the entire Lantian County, and all the people who have benefited from the dam will be grateful to you~! "

"Hey, Chief, if you say so, then I won't have to work hard~?"

While the two were talking, Yan Shaoning walked over and said half-jokingly.

He and Li Zexuan are very good friends, but since he is also on duty in Yanhuang Academy, when there are people from the academy present, he usually calls Li Zexuan the head of the mountain instead of calling him by his first name. face!

Li Zexuan turned his head to look at Yan Shaoning and said, "Haha! It's all hard work! It's all hard work! Hey, by the way, Shaoning, why didn't you see Miss Mo?"

Yan Shaoning's eyebrows twitched and he almost vomited blood. There was a hint of embarrassment on his face. He thought to himself that this bad friend is really a pot that can't be opened and raised. Ren Mohuai is still in front of him. Is it appropriate for you to mention his daughter in person?

"Cough! She... how could she be here? She should be in the workshop by now!"

Being mentioned by Li Zexuan, Yan Shaoning no longer dared to face Mo Huai as usual, as if a son-in-law was nervous and cramped when he saw his father-in-law!

"Master, Mo Lao, the materials are ready, do you want to start building the foundation for the dam?"

At this moment, Uncle Fu came over to relieve Yan Shaoning's embarrassment, and only listened to him.

"Well! Let's start~!"

Li Zexuan nodded with a smile.

……………………

Support (end this site) and share this site with those who need it! Can't find the book, please leave a message!