You won’t be afraid if you learn mathematics, physics and chemistry well and cultivate immortality

There was wine, meat and a big pot of bone soup. Everyone was sitting around the barbecue with smiles on their faces. About twenty people formed a large circle.

Xiao Wangcai was probably the happiest. After all, it was hard work for this guy to keep the food all afternoon. First, he was given a bone by Tiezhu to chew on. He didn't forget to take a look at the sizzling barbecue from time to time.

Iron Hammer also distributed the wine to everyone honestly, a glass of wine for each person, eh! This is indeed a cup, a cup and half a catty.

There are two flowers on each table.

Old Man Lin flew with his sword, flying for nearly three hours in one breath, and finally flew back to Zixia City. After a long journey, he returned to Jia Mansion to simply tidy up and tidy up.

At this time, everyone in the Jia family was having dinner. When he heard that old man Lin was back, Baochai put down his bowls and chopsticks and ran to the front yard to inquire about the news.

Although Baochai ran the fastest, he still didn't forget to pull Baoyu who followed him.

Didn't he start to shout sweetly before he reached the door, "Grandpa Lin, Grandpa Lin, you are back. I am looking forward to the stars and the moon, and I hope you will come back every day. I have missed you a lot lately."

This naughty and troublemaker directly uses the art of cuteness and coquettishness.

"Baochai is here." Old man Lin opened the door with a smile.

"Hello, Grandpa Lin." Baoyu greeted respectfully.

"Okay, okay, Baoyu, come in and sit down." Old man Lin responded with a smile.

"Grandpa Lin, Grandpa Lin, didn't you say you would be back in a month? It's been three more days, but I come here every day to see if you are back!" Baochai said as he entered the house.

"Hahaha, I just encountered a small matter and was delayed." Old man Lin was also very happy. After all, it is good to have someone thinking about that kind of heart-warming feeling. Maybe this thinking is meaningful.

"Ah, we can still encounter trouble." Baochai asked curiously.

"It's all trivial. How are you doing at home?" Old man Lin asked the little girl with a smile.

"Uncle Lin, you are back. Has the journey been smooth?" Before Baochai could reply, Fatty Jia, who had rushed over after hearing the news, finally appeared and quickly sent his caring greetings.

"I just came back and you came here in a hurry. What happened at home?" Old Man Lin asked.

"It's okay, it's okay. I haven't seen you for a long time. I miss you very much." Fatty Jia is such a person. He has no other abilities, but he still has some ability to observe people's emotions.

"Uncle Lin, you have been working hard all the way. Come on, come on, hurry up and put the food on the table. If you have anything to do, wait until you finish eating." Mrs. Jia, the finale, finally appeared. She was arranging for the young ladies to bring the food to the table. An elder sweeping monk.

"Madam is here, come in and sit down quickly." Old man Lin greeted with a smile.

The four young ladies following closely behind each had a large tray, three dishes, one soup, a large bowl of rice and a jug of wine.

People with a small family and a small business have few rules. Old man Lin was not polite. After all, he was really hungry all the way. Food and drink are important things in the world.

The four members of the Jia family waited quietly for Old Man Lin to eat and drink, and then someone would take away the dishes and bring tea.

The tea party started like this, so Old Man Hu Lin briefly recounted what happened to him during the rest of the month, such as: picking up a fat dog, fighting off the gangsters, driving away the tigers, and the azaleas blooming all over the mountain. The wonders of the city are as well as the huge crowds of people going to the market. In the end, the person was delivered safely and was entrusted to the care of his old friend.

Finally, he took out all the gifts Diamondback bought for everyone from his storage bag and put them on the table. The happiest sisters were Baoyu and Baochai. They listened to everything and received the most gifts.

Especially when he saw the clay figures one by one, Baochai even muttered that this craftsman was not good enough to make his brother fat.

Baoyu likes the mechanical puppet rabbit that can jump a few steps, while Baochai chooses the big dragonfly that can fly.

I actually have other gadgets at home, so since they are gifts, I just keep them.

Back at the blacksmith shop, everyone was drinking wine and eating barbecue, humming songs and getting permed.

The atmosphere is very good. Tie Hammer's mouth is full of oil after eating, and the oil is dripping down his beard. No matter how you look at this guy, he looks a little too anxious. For those who don't know, if you see this guy standing with Tiezhu Station Comparing them together, I can tell that I definitely feel five to six years older.

While eating, he praised the rookie's method of assembly line work. He just checked that the weapons forged in the afternoon were of good quality, and the overall speed was at least 30% faster.

He also clamored to have a drink with Diamondback. This was rejected directly. Only those under ten years old would not dare to be so brave.

So he could only turn around and drink with Tie Zhu next to him. After all, the three Tie Hanhan went crazy in the afternoon and almost lost their lives. The revolutionary friendship is very strong.

Then Tie Zhu told Tie Zhu about the blacksmith shop and asked Tie Zhu to take some people to the back mountain to mine iron ore and smelt iron ingots tomorrow. It is estimated that if this continues, the stock in the blacksmith shop will be insufficient until the end of the month.

Only then did the newbie next to him understand the division of labor in this blacksmith shop. The iron pillar was responsible for mining and smelting iron ingots, and the hammer was responsible for turning the iron ingots into finished products.

An idea flashed through the rookie's mind, blast furnace steelmaking, yes, yes, it is one of the necessary skills for time travellers. It's a pity that there is only one vague idea, which is to build a big blast furnace, and then I don't know anything.

Because the nine-year compulsory education textbooks don't mention this in detail. If I hadn't read a novel where the protagonist traveled to ancient times to make steel and weapons, I wouldn't have had this idea.

The class representative said: Blast furnace ironmaking is an important link in steel production. This method was developed and improved from ancient shaft furnace ironmaking. The blast furnace body is divided into five parts from top to bottom: furnace throat, furnace body, furnace waist, furnace belly and hearth. The main features of blast furnace ironmaking technology are safety, simplicity, high efficiency and low energy consumption.

During blast furnace production, iron ore, coke, and slagging flux (limestone) are loaded from the top of the furnace, and preheated air is blown in from the tuyere located at the bottom of the furnace along the furnace circumference. At high temperatures, the carbon in the coke (some blast furnaces also inject auxiliary fuels such as pulverized coal, heavy oil, natural gas, etc.) burns with oxygen in the air to produce carbon monoxide, which removes the oxygen in the iron ore as it rises in the furnace. Iron is thereby reduced. The smelted molten iron is released from the iron mouth. The non-reducible impurities in the iron ore combine with fluxes such as limestone to form slag, which is discharged from the slag outlet. The generated gas is led out from the top of the furnace, and after dust removal, is used as fuel for hot blast furnaces, heating furnaces, coke ovens, boilers, etc.

In addition, charcoal can also be used instead of coke. Brazil uses eucalyptus to make charcoal instead of coke to make iron, which is a waste of wood. Anyway, if you’re writing a novel and it’s not so fine, just use high-density charcoal instead! This kind of charcoal can be fired from wild wood.

So the little novice started thinking hard about how to make steel in a blast furnace, and his eyebrows were twisted in thought. It seems like iron ore and coal are melted together. I wonder if it's wrong.

The picture of Master Lu refining the bearings in the afternoon flashed through his mind. Yes, yes, yes, you can actually use charcoal to bake it, make a mouth for the molten iron, and then use a model to shape it. In this way, you can get the preliminary embryo of the weapon, and then continue to forge it. .

So I discussed the feasibility of this matter with Tie Zhu, who was drinking next to me. Tie Zhu kept nodding, and Tie Hammer quickly joined the group chat.

The three cobblers supported Zhuge Liang and quickly discussed a result: building a blast furnace to make iron.

After all, it may be a bit fanciful to think of making steel from a hundred times in one step, but if you work hard at fine iron, you should still have a chance.

After all, the materials are readily available. Tomorrow, I will try building a small furnace that can smelt several hundred kilograms. If it succeeds, I will go to a bigger one.