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Text Chapter 89 Smelting Iron and Steel (Part 2)

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    "Youdao is a word that wakes up the dreamer." Li Min's seemingly joking words sounded to Master Jiao's ears, but they were like a thunderbolt, exploding a crack in his already fixed thinking.  Li Min's metaphor was so vivid that he immediately grasped the key point and said excitedly: "Your Highness, do you mean to say that the air can be heated and then blown into the furnace?  "

    "Haha, Mr. Jiao is indeed very experienced and he grasped the key point right away!" Li Min praised. Air preheating is actually just a layer of window paper. Everyone understands the truth, but no one has ever thought of doing it this way. The main reason is that the air preheating is just a layer of window paper.  People's experiences limit their thinking.

    Li Min stepped forward to the side of the water drain, stretched out his hand and gestured on the ground: "Uncle and Master Jiao, please take a look. You can build a preheating room here to heat the air and blow it into the furnace. In this way, you can  This prevents the temperature in the furnace from lowering due to the cold wind. The higher the furnace temperature, the faster the iron in the iron ore can be smelted. This not only saves time, but the quality of the smelted iron is much better than before.  .¡±

    As the minister of the Ministry of Industry, Duan Lun still knew a little bit about the art of iron smelting, so he could understand Li Min's words. However, as an official who coordinated the overall situation, he heard something inappropriate in Li Min's words.  He immediately asked: "Liu Lang, I understand what you are talking about about the preheating room, but have you ever thought about it? This preheating room also consumes fuel. Although the quality of the iron produced is better, the cost  But it has also increased, wouldn¡¯t this be a bit uneconomical?¡±

    Hearing Duan Lun's question, the excited Chief Jiao said first: "Master Shangshu, adding a preheating room will not increase the cost, because when the furnace temperature is increased, the smelting time is shortened. In this way, the smelting time can be  Reduce the amount of fuel and the fuel saved can be used to heat the air."

    "Hey~, wonderful! This is my negligence!" Duan Lun heard Master Jiao's explanation.  Immediately, his eyes shone with praise, and at the same time he was even more impressed by Li Min's talent. Not long after he arrived, he made a small change to the blast furnace, which immediately improved the quality of the iron produced by the blast furnace.  It can also speed up the iron tapping time of the furnace.  Don't underestimate this small improvement. There are countless iron-making furnaces in the Tang Dynasty. If each furnace is modified as Li Min said, not only will the annual iron output increase a lot.  Moreover, the quality of the iron can also be improved to a higher level, which is an amazing achievement!

    "Liu Lang, everyone said that you got guidance from a god. I didn't believe it at first. But now I know that those rumors are not exaggerated for you!" Duan Lun thought that he had obtained such a big one out of thin air.  Excited about his political achievements, he no longer cared about his manners. He stepped forward and patted Li Min on the shoulder and praised loudly.

    "What the hell, uncle, you praise your nephew too much!" Li Min said hurriedly and modestly, but he couldn't hide the pride on his face, especially when he saw Master Jiao's eyes shining with admiration for him, looking at him  It was like seeing a pile of gold and silver treasures.  I wish I could grab it and hold her in my arms for a kiss.

    Craftsmen are all action-minded. Chief Jiao immediately called several major craftsmen over and explained the method of preheating the room. These people were immediately shocked and looked at Li Min with the same eyes as Chief Jiao.

    These people are all experts, and Li Min is also there.  So everyone talked to each other, and soon came up with a detailed plan for the preheating chamber, and some of them proposed that when the preheating chamber is heated, the fuel and air are separated.  This has very low fuel requirements, and there is no need to use the saved coke. Cheaper coal can be used as fuel.  In this way, although a preheating chamber is added, it can actually save a lot of fuel costs, which can definitely reduce the cost of a furnace of iron.

    As soon as this proposal came out, it immediately attracted the admiration of Li Min, Chief Jiao and others. Even Duan Lun, who was left to doze on the side, also loudly applauded. Although the Ministry of Industry gets a lot of money every year, there are more places to spend money.  , so as soon as he, the minister of the Ministry of Industry, hears that he can save money, he will immediately become energetic.

    As soon as the plan for the preheating room was finalized, Director Jiao originally wanted to do it in person, but Li Min stopped him and the craftsmen. Transforming the blast furnace was just a small move by Li Min to establish his power. His main purpose was to organize these craftsmen.  Help yourself to figure out the steel filling method.  After all, what is smelted in a blast furnace is just pig iron, but how to turn pig iron into steel?  This is the most troublesome step.

    Datang's steelmaking still used the fried steel method. The so-called fried steel actually means melting the pig iron and then stirring it constantly, just like stir-frying. This allows the oxygen in the air to react with the impurities and carbon in the pig iron.  , which reduces the carbon content in the iron. However, most of the steel produced by this fried steel method is wrought iron and low carbon steel. If you master it well, you can also get some medium carbon steel and high carbon steel that are more widely used.  .

    What Li Min is going to doBut it is a further step of steel filling method. Although whether it is the steel frying method or the steel filling method, Li Min only knows a rough idea. After all, he has not learned this knowledge specifically. He has only read it from some miscellaneous books or on the Internet.  An introduction to this aspect.  However, even though he knew only a little about steelmaking, Li Min was absolutely confident in mastering the steel filling method. After all, he knew the nature of steel very well.  To put it bluntly, isn¡¯t the so-called steel just iron with a carbon content within a certain range?

    ¡° If he wanted Chief Jiao and the others to help him figure out the steel filling method, Li Min had to let them understand the difference between steel and iron first, so Li Min had to temporarily act as a chemistry teacher and try his best to explain it in plain language.  Of course, Li Min was not stupid enough to talk about atoms and molecules. He just told them that there were many impurities in the iron. Of course they knew about Master Jiao. Then Li Min said that one of these impurities was very special.  Its content will affect the properties of iron. If it contains more of this impurity, it is pig iron, if it contains less, it is wrought iron, and if it is in the middle, it is steel.

    Everyone understood what he said, and then Li Min explained the principle of the steel filling method. Although the steel filling method existed in the late Han Dynasty, it was not until the Song Dynasty that it began to be used on a large scale, so in the early Tang Dynasty  , very few people know this method of making steel.  In fact, the so-called steel filling method is to mix pig iron and wrought iron together. As long as the proportion is correct, steel will come out.  Of course, the steel filling method is definitely not as simple as Li Min imagined, but the principle is not wrong, as long as you spend some energy and time to study in this direction.  You can definitely figure out the steel filling method.

    After listening to Li Min's method of filling steel, Chief Jiao and a group of craftsmen fell into deep thought. They also understood Li Min's explanation. If someone else was talking about the difference between steel and steel in front of them, they would definitely sneer at it. After all,  When it comes to their understanding of steel, none of them, who have been playing with steel for nearly a lifetime, is convinced by the other.  But just now Li Min¡¯s opinion on the preheating room.  They had already developed a kind of awe for Li Min, the unique prince. Now after listening carefully to Li Min's explanation, and then confirming it with their own understanding of the properties of steel, they found that they only knew what it was before.  But if I don't know why, if I use Li Min's theory to explain it, everything becomes smoother all of a sudden.

    Chief Jiao discussed quietly with the craftsmen around him for a while, then stood up and reported: "Your Highness, all my subordinates understand the steel filling method you mentioned. Although in actual operation, you may encounter some difficulties, but it is  It¡¯s not that there is no solution. If we are given some time to study it, we are indeed sure to come up with this solution!¡±

    "Okay!" Li Min was overjoyed when he heard that there was a way. He stretched out his hand and patted Master Jiao on the shoulder twice, "Master Jiao, if we can come up with this steel filling method, it will definitely increase Datang's steel production by several times."  Times, and as the main participants in this matter, you will definitely be famous in the history of the Tang Dynasty!"

    "That's right! You all have the courage to do it. If you need anything, come to me. During this time, put down all other things at hand. Do your best to come up with this steel filling method." Duan Lun also stood up at this time and said,  But the expression on his face was a bit strange, his face was red and he didn't look excited.  On the contrary, it makes people feel a bit suffocated.

    Seeing that even Lord Shangshu fully supported the steel filling method, Chief Jiao and the others no longer had any worries and immediately said: "Thank you, Lord Shangshu, for your support. I will go all out to research the steel filling method as soon as possible!"  Although Li Min is a prince, he can't control Master Jiao and the others after all. Duan Lun is the boss, so Duan Lun's words are more effective here.

    After Li Min explained the steel filling method, there was nothing else for him to do next. After all, when it came to the actual operation of iron and steelmaking, he was far away from people like Chief Jiao, so once the theoretical knowledge was finished, Li Min and Duan  Lun no longer disturbed these craftsmen who had already started to take action, and left the large workshop together.

    When walking on the road, Duan Lun snorted angrily: "Liu Lang, you are really naughty. Is this what you said about helping us improve the technology of smelting iron and steel?"

    "Eh? Uncle, isn't a preheating chamber and a steel filling method enough? This is a good thing that can double Datang's steel production several times!" Li Min blinked and replied innocently.

    "Shit! Although the preheating chamber is a good idea, your steel filling method is just a painting. I only know a rough idea. Then I will talk to the craftsmen and let them study it on their own. Can you study it?  Let's not talk about coming out, it will definitely cost a lot of manpower and material resources, and our Ministry of Works will pay for these." Seeing Li Min's scoundrel look, even Duan Lun, a gentle man like him, couldn't help but swear,  When Li Min asked him for help, he boasted like an expert, as if he could get everything done immediately as soon as he took action. But in the end, Li Min only pointed in a general direction. As for the specifics, Li Min only pointed out a general direction.  workThe craftsmen under him had to study the process themselves, and the cost had to be reimbursed by him, the minister. How could he not be angry?

    "Uncle, you can't say that. My steel filling method is genuine. If they didn't have my guidance today and just let them study it on their own, it would probably be difficult to develop it even if it takes a hundred years!" Li Min said very confidently.  , In fact, what he said was obviously a bit of a boast. The method of steel injection had appeared as early as the late Han Dynasty, but only very few people knew about it in the Tang Dynasty.

    "Hmph~" Seeing the dignified King Liang acting rogue in front of him, Duan Lun, even though he was Li Min's uncle, could not do anything to him. In the end, he could only snort coldly, turned his head to the side, and stopped looking at this rogue boy.

    Seeing that Duan Lun seemed a little angry, Li Min was also a little worried. There would be many places where he would use Duan Lun in the future. It would not be worthwhile if the relationship became tense because of such a trivial matter.  So Li Min thought for a while, and suddenly had an idea. He tugged on Duan Lun's sleeves with a flattering look on his face, asking him to turn his face, and then said: "Hey, uncle, it's my nephew's fault this time, otherwise  In this way, I will come out with something new, and this time I promise that I will never fool you with semi-finished products like the steel filling method again!"

    "Huh, are you that generous?" Duan Lun was still a little doubtful about Li Min's character.

    "Of course, and this thing is related to farming. You also know that our Tang Dynasty attaches great importance to farming. Even my father goes to the fields in person. As long as I take out that thing and then your Ministry of Industry presents it, if in the future  If the promotion spreads, uncle, as the main promoter, you will definitely be famous in the history of the Tang Dynasty." Li Min started to lie again. He had already said the last sentence to the principal and the others just now, without even a single word.  change.

    "Hey, even if you boast about your stuff this time, I won't believe it unless you show it in kind!" Duan Lun is also a smart man and will never fall in the same place twice.

    "Isn't it just the real thing? Uncle, please wait for two days. I will ask the craftsmen at home to make it when I get back. When it is done, I will demonstrate it in front of you. Then you will know the benefits of this thing." Li  Xin still said with an awesome look on his face.

    After returning to the Ministry of Industry, Li Min said goodbye to Duan Lun and didn't go anywhere. He immediately returned to the palace and prepared to let the craftsmen make the things he just said he wanted to give to Duan Lun. However, as soon as he arrived at the palace,  He was very surprised to see a person, and according to his servants, this person had been waiting for him at the house for a long time.

    "Eighth brother, why do you have time to come to Sixth Brother's house today?" Li Min walked into the living room and asked with a smile.  The person who came was none other than Li Zhen, who was the eighth among the princes. When Li Min went to elementary school, this boy had even snatched origami from Si Zi. It could be said that he was a rather mean guy.

    "Brother Six, you must help me this time, otherwise I will really have no shame in living!" But what people didn't expect was that as soon as Li Zhen saw Li Min, tears filled her eyes with excitement, as if  As if the child without his parents finally saw his relatives, he rushed forward and hugged Li Min's thigh, wailing loudly.

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