Otaku Engineer in Great Tang Dynasty Chapter 1338: Heavenly moat is a thoroughfare, superb!

　　 "Sang Gong, I'm back!"

　　 Lantian County, Yunshan Courtyard.

　　 Han Yuxi pushed the door in from outside, and 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 fast today?"

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

　　Because Ye Fashan is trapped in the city, Han Yuxi went to the neighboring hospital early in the morning every morning to chat with the old lady and Mrs. Ye, mainly because he was afraid that the elderly would be too worried, and over time, he would get sick!

　　"Hehe! Xianggong, didn’t you know this to ask? Yesterday you told your grandmother that Guancheng County was broken, and that Fashan and the others were also relieved. Grandmother and her old man's mood improved in an instant, and there is no need for concubine to comfort him. When the concubine just went there, my grandmother had already gone out with my grandfather, and the maidservant said that they had gone to the college 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 bidding farewell to Xiao Yu'er, Tie Dan, Meng Wenhao, Liu Rengui and others, he left for Nanyang. He planned to go home and worship. After leaving his parents, he went to the south to visit famous mountains and rivers, visit hermit masters, and pursue his own way!

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

　　 Li Zexuan smiled, and said: "When my grandfather and grandmother also arrived to take care of their lives, this kind of thing happened a while ago, and it really made them worry a lot. After all, I didn't think of the way. The Shanhui accompanies Xiao Yuer to Guancheng. This child is kind-hearted, and the Ye family is really a successor. In fact, his grandfather should be happy for Fashan!"

　　Han Yuxi curiously asked: "Msang Gong values ​​the good of law?"

　　 Li Zexuan now has hundreds of students. She has never seen Li Zexuan value a person so much.

　　 Li Zexuan said in his heart, the future leader of the Taoist School of the world, of course he valued it, but he could not say such things. After thinking about it, he said: "The Dharma has a very good aptitude and a very high understanding. He is a child of the rich family, he can endure hardship very much. For such a person, it will be difficult to succeed in the future. Therefore, the husband said that the Ye family is a successor!"

　　 Han Yuxi smiled and nodded, then she rolled her eyes and said: "Msang Gong, Tie Dan has helped a lot with the army this time, do you think the Holy Lord will reward him?"

　　 After all, this is my sister. After Tiedan went to Guancheng, Han Yuxi was worried every day. Now Tiedan is about to return triumphantly, Han Yuxi, who is the older sister, begins to worry about whether his younger brother will get the answer. The reward!

　　 Li Zexuan patted his wife on the shoulder, and replied: "Madam, don’t worry! Your majesty always rewards and penalizes. The merits of iron eggs are obvious to all. Your majesty will never turn a blind eye. In fact, I don’t want to see your majesty give iron. The reward is too heavy. He is still young. If the reward is too heavy, I am afraid he will lose the motivation to make progress!"

　　 Han Yuxi thoughtfully said: "Yeah! Xianggong said it is reasonable! But Tiedan's contribution this time is not big, and the concubine thinks he should only get some rewards!"

　　"Master, Master~!"

　　 Just then, outside the courtyard gate, there was Song Xiaosi's cry.

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

　　 Han Yuxi saw that Li Zexuan had a business matter, so she went into the house.

　　 Song Xiaosi entered the courtyard gate, walked to Li Zexuan, bowed and said: "Master, the drainage canal next to the Bahe River has drained all the water in the Meicun section. Today, the foundation of the dam has begun. Would you like Go and see~!"

　　 Li Zexuan was shocked when he heard the words, and his face was full of joy and said: "Okay! You go first! I change my clothes and will arrive later."

　　The reason why Li Zexuan did not personally participate in this battle of governing the city was mainly because he was concentrating on the Bahe Dam. Over the past half month, with the joint efforts of him, Mo Huai and Yan Shaoning, he has overcome Many of the engineering problems in the dam construction process have been solved. The most important one is that Li Zexuan solved the most critical problem in the reinforced concrete pouring dam plan-steelmaking!

Next to the iron smelting plant of 　　 workshop, a small steel smelting plant appeared.

　　The ancients did make steel. At the end of the Spring and Autumn Period (before 476 BC), artificially tempered steel appeared in China. By the Eastern Han Dynasty, the steelmaking technology had been mastered. The most commonly used are steel frying and 100 steelmaking techniques.

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

　　 As for Hundred Steelmaking, the block iron is repeatedly heated, folded and forged. The purpose is to make the structure of the steel dense, the composition of the steel body more uniform, reduce impurities, thereby improving the quality of steel, so it is made of Hundred Steelmaking The sword is of high quality.

　　 Although the quality of steel produced by Bai Steelmaking is relatively high, this method has low yield and high cost, and it is difficult to meet the needs of industrial development.

　　The method adopted by Li Zexuan is the converter steelmaking method. This method is the steelmaking method invented by H. Bessemer in England in 1856. The oxidant used in the process is oxygen. Blow air into the molten pig iron to oxidize impurities such as silicon and manganese. During the oxidation process, a large amount of heat is released (1% silicon can increase the temperature of pig iron by 200 degrees Celsius), and the furnace can reach a sufficiently high temperature.

　　Converter steelmaking is carried out in the converter. The shape of the converter is like a pear, with refractory bricks on the inner wall, and many small holes (tuyes) on the side of the furnace. 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 in a horizontal position, and liquid pig iron at 1300 degrees Celsius is injected inside, and a certain amount of quicklime is added, then air is blown and the converter is turned to make it stand upright.

　　 At this time, the surface of the liquid pig iron reacts violently, oxidizing iron, silicon, and manganese (FeO,;, MnO) to generate slag. The convection effect of molten steel and **** makes the reaction spread throughout the furnace. After a while, when only a small amount of silicon and manganese are left in the molten steel, the carbon begins to oxidize, generating carbon monoxide (exothermic), which causes 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 recedes, and the brown steam of ferroferric oxide appears at the furnace mouth, it indicates that the steel has been made.

　　 The steel produced by this method is superior to the frying steel method and the 100 steel-making method in terms of output and quality!

　　 When I saw a large amount of high-quality steel produced from the converter mouth, Mo Huai still cried out incredible. You must know that their Mo family is not only good at engineering construction, but also good at steelmaking and sword casting, but they found that Li Zexuan was not Mo Huai could not help but be even more convinced of Li Zexuan because of the fact that the members of the Mo family had such a godless steelmaking skills!

　　 After solving the steelmaking process, Li Zexuan tested the mixing of steel bars and cement, which is as strong as a boulder.

　　 It is precisely because these basic problems have been solved that today's dykes are built.

　　 Changing the practice 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 river bank.

　　 In order to keep up with the progress of the project, Li Zexuan used the crowd tactics like last time to build the Yanhuang Academy, recruiting more than 10,000 craftsmen and civilian husbands. It is said that the young people in Lantian County have basically been recruited.

　　 This is the typical time is not enough, the number of people come together, anyway, he has money!

　　 "Mountain long, you are here~!"

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

　　 "Hmm! Mr. Mo, I heard that the foundation of the dam is going to be built today, so I will come and have a look!"

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

　　 Because of the drainage channel next to it, the water in this section of the river has been drained, exposing a yellow riverbed. The soft sand on the surface of the riverbed has been dug away by artisans and civilians, and it will be built from the dug area in a while. Ji, Li Zexuan saw this scene, his chest was proud, he said with emotion:

　　"After several months, we finally passed the most difficult moment. Who would have thought that we could cut off the surging Bahe River in such a short period of time? Now we have not only cut off, but also A dam with a width of several meters was built from the middle, and the moat became a thoroughfare~!"

　　 Mo Huai laughed at the words: "In the final analysis, the mountain leader's plan is appropriate, and the mountain leader has invested such a large amount of manpower, material and financial resources. If he can't get results as quickly as possible, he will be incompetent~!"

　　 Li Zexuan hurriedly said: "Why did Mr. Mo say this? During this time, you are the hardest thing! When the dam is completed, you will be the hero of the entire Lantian County. All the people who benefit from the dam will be grateful You~!"

　　 "Hey, Shan Chang, according to you, then I won't work hard~?"

　　 When the two are talking~IndoMTL.com~ Yan Shaoning walked over from the side and said half-jokingly.

　　He and Li Zexuan are very good friends, but since he is also on duty at Yanhuang Academy, when there are people from the Academy, he usually calls Li Zexuan as the head of the mountain instead of directly calling his name. This is called Give face to my friends!

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

　　 Yan Shaoning's eyebrows twitched, almost vomiting blood, a trace of honey suddenly appeared on his face, embarrassment, and I thought that this damaging friend is really not a pot or a pot, Ren Mo Huai is still in front of him, is it appropriate to mention someone’s daughter now? ?

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

　　As mentioned by Li Zexuan, Yan Shaoning no longer dared to face Mo Huai like usual, as if there was a kind of nervousness and cramp that a son-in-law met the old man!

　　"Young Master, Old Mo, the materials are ready, do you start to build the foundation for the dam?"

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

　　 "Hmm! Let's get started~!"

　　 Li Zexuan smiled and nodded.

　　.........................

　　https://

　　Tiancai site address:. Mobile version reading URL: