Chapter 409 Someone is even worse off than her
To be precise, he needed his little girl.
Qi Hanzhou knew that it didn't really matter whether he was there or not.
But he was worried about leaving Yunfu and the little ones behind while he was away for such a long time.
To reach the border, even if it is fast, it will take half a year to go back and forth. Who can guarantee that Yun Fu and the children will not encounter any danger in the Ghost Prison during this half year?
Yunfu made the decision and began drafting a plan for building an ironworks that evening.
She asked Qi Hanzhou to guard the place for her while she entered the space and searched for books and materials about iron smelting in the space. She stayed in the space until the next morning before coming out.
Qi Hanzhou also stayed with her all night.
Looking at her red eyes due to staying up late, with a look of heartache in her eyes, she advised: "You can take your time with these things. You have to take care of your body."
Yun Fu was just about to say that she was not sleepy, but she opened her mouth and yawned sleepily.
She could only nod obediently and let him pick her up and put her on the bed.
"You should have a good sleep."
Yun Fu raised her eyes and saw the red spots in Qi Hanzhou's eyes. Knowing that he also hadn't slept all night, she patted the side of the bed and said, "Then you lie down for a while too."
Faced with her invitation, Qi Hanzhou naturally would not refuse.
Also lay down.
Soon, I could hear the shallow breathing of the little girl as she fell asleep.
——
Yunfu took two days to come up with a plan to build an ironworks.
This time, she was really going to get herself killed.
Holding the plan, she called Cheng Qingyan and Xuanji Zhang over. After all, the two had been managing the seventh-class area when she was away, and they had been staying in the seventh-class area since entering the Ghost Prison. They were much more familiar with this place than she, an outsider.
Discuss the plan with both of them.
Qi Xu was bored, so he just listened from the side.
In addition, there are Wei Lin and others who have been following Qi Hanzhou for the past two days.
First, Yunfu gave them some basic knowledge about the concepts of pig iron, wrought iron and steel.
"Pig iron contains many impurities, making it brittle and easily cracked. This is the ironware we use today. Therefore, the ironworks I want to build will produce wrought iron and steel."
"Wrought iron has fewer impurities and is more ductile, making it easy to forge into anything you want. Steel, on the other hand, is even harder and more durable than wrought iron."
"The difference between iron and steel lies in the amount of carbon they contain. Iron contains more carbon, while wrought iron contains less. Steel, on the other hand, contains even less carbon than wrought iron."
Everyone listened attentively. Qi Xu asked, "What is carbon? Is it the same as the charcoal we make?"
"They're not quite the same. Carbon exists in many places. There is carbon in charcoal, but the carbon in charcoal is not the carbon I'm talking about." Yun Fu could only explain it briefly. After all, if she went into details, she wouldn't be able to finish talking about it in a whole day and night.
Xuanji Zhang had an expression of having seen the world: "So, there are so many theories about iron smelting."
Wei Lin and the others also nodded in approval, with many sighs in their hearts: Princess Yunfu knows so much!
Who would have thought that in the eyes of those people in Shengjing, she was a fool.
Yun Fu did not explain the specific method of iron smelting in detail.
I just gave a brief introduction to the four stages of iron smelting.
"First, you have to build a furnace. Second, you have to select the ore. Third, you put the ore into the furnace and refine it into iron. Fourth, there's the forging process."
These four steps don't sound difficult.
Xuanji Zhang said that he usually makes iron according to these steps.
Yun Fu glanced at him and said, "The small furnace you use to smelt iron won't work. We need to build a blast furnace here."
Since it is an ironworks, it is impossible to build a furnace according to the scale of a blacksmith shop.
This furnace is not an ordinary iron-smelting furnace that has been enlarged. Instead, it needs to be built with refractory bricks because later on, to smelt iron into steel, a furnace that is more resistant to high temperatures is needed.
The stove made of ordinary clay cannot meet Yunfu's requirements.
"Building a blast furnace requires refractory bricks, which are different from ordinary red and green bricks. The raw materials required for firing, in addition to clay, also include terrene and quartz."
After Yun Fu finished speaking, she found that everyone present had a confused expression on their faces.
Their reaction was also within Yun Fu's expectations.
"I've also written down the descriptions of the highlands and quartz here. Take a look and see if you've ever seen anything similar to this description."
Yun Fu thought that this Ghostly Prison was rich in minerals, so there should be a great chance of finding high-altitude land and quartz stone.
A few pieces of paper were passed around among the people.
After a while, Cheng Qingyan spoke first: "This Gaotu Territory is somewhat similar to Guanyin Territory."
"Guanyin soil?" Everyone looked at him again.
Cheng Qingyan didn't seem to mind the stares. He moved his thin lips and continued, "During famine, when the victims had nothing to eat, they used a kind of white soil as food. That's Guanyin soil. Knead the Guanyin soil with wild vegetables into a ball, steam it, and eat it. It will definitely relieve your hunger."
This was the first time Qi Xu had heard of someone eating dirt, so he asked curiously, "Is that really edible? Won't I get sick if I eat it?"
Yun Fu also seemed to have heard that during a severe famine, when even tree roots could no longer be found, some people would eat a certain type of soil. "Of course not. No matter what kind of soil it is, the human stomach and intestines can't digest it. Eating it will definitely cause bloating, which can be mild and sick, and even fatal."
Cheng Qingyan nodded: "That's right. After eating the Guanyin soil, people only feel full. In fact, the soil is stuck in the stomach and can't be expelled. The end result is that the stomach swells like a drum, big and hard, and death is approaching."
Qi Xu thought that their lives were miserable enough as they had to gnaw on tree roots and eat leaves on the road to exile, but she didn't expect that there were people who were even more miserable than her.
This man named Cheng Qingyan described it in such detail, could he have also eaten this Guanyin soil?
As Cheng Qingyan spoke, he unconsciously raised his eyes and met Qi Xu's eyes that were filled with a hint of pity.
I don't understand why this little girl is looking at me like that.
"Then you can ask someone to find some Guanyin soil first." Yun Fu didn't know what kaolin and quartz stone were called in the Five Countries. Maybe they didn't have names at all before. She could only find all the similar ones and see what they were called.
Here, Xuanji Zhang also took on the task of looking for quartz stone.
"Leave the other one to me! I'm familiar with all the mountains around here."
Yun Fu was not idle either.
Because the blast furnace also needs to be designed with a blower device and charcoal as fuel for combustion.
Charcoal is easy to deal with, as they have burned it before in the eighth and ninth grade areas.
Winter is almost here, so you can make some more charcoal to help everyone keep out the cold.
The blower needs to be drawn first.
You also need to find the right craftsman.
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