"Yes, princess, please", the young man nodded and followed.

"The villain's name is Qi Wujin, he is the master's eldest disciple, and he has been here for more than five years... Princess, please, this is our blast furnace..."

I can't see it, this young man is still a chatter, but it's also a loss for him to chatter, Luo Xiaoqiao basically understands it.

"Princess, please see, the method we are using now is definitely not a secret, and it can make the best steel today."

"What's that for?" Luo Xiaoqiao pointed to the worker next to him and asked.

He was smelting pieces of pig iron between coiled bars of wrought iron in a steelmaking furnace sealed with mud.

"Princess, this is steel filling," Qi Wujin explained.

"In the past, we got hard iron tools, and we could only remove impurities by forging, which was called 100 steel, which was really too slow, and then we had this method of filling steel."

Luo Xiaoqiao somewhat understands that the essence of ironmaking is to take out the impurities in the ore, then reduce the iron oxide to obtain iron, and then add an appropriate amount of carbon to the iron to increase the hardness.

The smelting system in this courtyard is really complete, but it is indeed too slow.

The courtyard tinkled non-stop, and the workers sweated like rain, adding material from the top of the furnace, and then tapping the iron from below, sometimes in order to dig out the charcoal at the bottom of the furnace, it was drilled and dug again, and it was nearly an hour before and after the beginning to the discharge of molten iron.

However, following Qi Wujin around and looking at the state of the workers, Luo Xiaoqiao felt that his trip might be a bit too much.

Because, she really doesn't know how to make iron, which is beyond her professional scope.

She only knows that modern smelting is also blast furnace iron-making and open-hearth steelmaking.

But at the current level of technology, open-hearth furnaces obviously can't be made. And a better steelmaking process than the current one? Well, she doesn't...

Ming Yi saw the obvious loss on her face, and he was also a little uncomfortable.

It seems that Miss Luo doesn't know everything.

"Girl, do you think we'll go back first, or what?" Ming Yi asked.

"No, you go and make arrangements, stay here, and I'll observe for two days."

Luo Xiaoqiao is a more and more courageous character, no matter how complete the system, such a backward process, there is always a way to improve.

There are so many craftsmen in the city, I believe they should have unique skills.

Make full use of the advantages of all parties, at the very least, it should be able to improve the efficiency of this blast furnace ironmaking.

However, before that, she had to understand the principle of this blast furnace before she could make targeted improvements.

"Master, do you think this is okay?" Qi Wutong's voice sounded carefully, looking at him expectantly.

Master Qi Wu only glanced at it: "Add charcoal, I told you, first burn the coal into charcoal, and then add some limestone." ”

"Yes, master."

"Your piece of steel is not hard enough," Master Qi Wu said, pinching the sample placed next to him.

"No, master, this is all strictly in accordance with your instructions", Qi Wutong was a little incredulous.

"Kala", Master Qi Wu picked up the steel knife next to him and slashed it down, and sure enough, cracks appeared on the sample.

Apparent material is superior or inferior.

"Let's see, is the material composition wrong", Master Qi Wu walked over with an expressionless face.

"Yo", talent!

Luo Xiaoqiao couldn't help but admire in his heart.

Just by looking at and touching, she can feel this level, and she thinks if this person is open.

No wonder so arrogant!

Luo Xiaoqiao watched Master Qi Wu open a stove alone, put wrought iron into it, put the pig iron plate at the mouth of the furnace, and clamped the pig iron plate with tongs, wanting to melt it.

"What is this?" Luo Xiaoqiao saw that his movements were obviously different from others, and couldn't help but ask.

"The master is trying to improve the steel filling method, but he hasn't found the way yet," Qi Wujin said.

Luo Xiaoqiao sat on the bench, put his hands on his cheeks, and continued to watch him busy, and before he knew it, it was noon.

"It's time to eat~" The cook knocked on the rice bowl.

"Princess, we also have a separate place here, let's go over and eat."

"Hmm", Luo Xiaoqiao nodded and put down the paper in his hand.

This morning, she also gained a lot, staring at the workers operating the blast furnace, and she could already figure out the general structure.

This kind of iron-making furnace has a tall furnace body, a narrow furnace cylinder, a horizontal blast, upper feeding, and lower combustion...

"Why are you still here?"

When eating in the private room, it is natural to meet Master Qi Wu.

"Master, this is Princess Jing, she wants to come to us to build an iron-smelting workshop, and I want to come and see the existing technology", Captain Hua hurriedly explained, for fear that he would be unhappy and not save face.

"Hmph, build a workshop? A woman takes control! Master Qi Wu said coldly, "Let's leave if it's okay." ”

"Master, I want to learn here and see if there is a way to improve the blast furnace", Luo Xiaoqiao smiled, not angry at all.

As soon as these words came out, the ridicule at the corner of Master Qi Wu's mouth became even stronger.

"Another well-fed one!"

After saying that, he took the rice bowl and went to the inner room, and said no more.

"Princess, please come here, my master is like this, don't you mind", Qi Wujin hurriedly came up to play a round and separated his master from Luo Xiaoqiao.

Luo Xiaoqiao pursed his lips and was noncommittal.

In the afternoon, she continued to wander around the workshop, studying the existing equipment. These things, which are mainly made of wood, are not difficult in her eyes.

"Who built this blast furnace?" Luo Xiaoqiao asked.

"The master taught it, and then it took us many years to improve it to become what it is now", Qi Wujin is very proud.

"Look at this structure diagram, is that so?" Luo Xiaoqiao handed over the paper in her hand, which she had drawn with charcoal strips in the morning.

Qi Wujin didn't care too much, he took it casually, who would have thought that he would be stunned when he saw it.

"Wang ...... Princess, this is what you painted? Qi Wujin asked with a stammer.

"I saw you open and close, and I saw this, I guessed the structure inside, and inferred that I drew it, do you think this is the case?" Luo Xiaoqiao said.

Qi Wujin was about to kneel for her, just look at it a few times, look at it a few times, and draw it?

He didn't believe it! Otherwise, the family heirloom craft does not need to be passed down from home, and people can see it twice.

How did she guess that there would be a seal, an iron mouth, and a feeding table inside...... And this location?

Qi Wujin groaned, "Princess, would you mind showing this drawing to my master?" ”

"Arbitrary", Luo Xiaoqiao looked at his expression, and estimated that he was right, let the master take a look, and then discuss it, it should be good.

So, she continued to get up and walk around the yard.

"You really drew it?" Not long after, Master Qi Wu strode over, holding her piece of paper in his hand.

"Hmm", Luo Xiaoqiao nodded.

Master Qi Wu glanced at her a few times from top to bottom, his brows furrowed.

"What do you want to do?"

"Well, master, I actually want to ask, why is the blast furnace so low?"

Luo Xiaoqiao remembered the appearance of the ironworks he had seen, which were all very spectacular chimneys, and they were by no means only so slender and tall.

"Is this still short? This is the highest", Qi Wujin looked at her incredulously.

"You can't build too high, if it's too high, the wind won't be able to blow", Master Qi Wu replied to her coldly for the sake of the drawings.

Luo Xiaoqiao's eyes lit up: "Does that mean that as long as the wind can blow in, the yield can be increased?" ”

"No, there has to be enough wind!"

"I have a way."