Polu was holding a charcoal pencil in his hand, writing and drawing on a pile of yellowed straw paper. He was troubled by a terrible problem - from ores to blast furnaces, most problems can be solved by simply stacking them.
, but there is currently no solution that can be solved by stacking quantities from iron to steel.
When we were in Hongshan, we relied on manpower to operate a large mechanical ladle to scoop out the impurities that were brought together by the classification array. Not only was the labor intensity very high, but the workers were so close to the blazing red molten steel, and the risks were terrifying. If this continued,
Using this method, as the number of furnaces increases, something will happen sooner or later.
Although the effect of the classification array is very good, the quality of the steel produced is very good, and the content of each component can be accurately adjusted, but this method similar to refining is somewhat unable to adapt to the current situation of large-scale deployment.
.
He dropped the charcoal in his hand, rubbed his swollen forehead, glanced at the messy large spoons drawn on the draft paper, and sighed: "This won't work. The steel plant has expanded to this scale and relies on classification.
Then the manual method of extracting impurities will definitely not work.”
The previous method was to scoop out all the impurities in the molten iron. In the steelmaking process, whether it is blowing oxygen to oxidize the impurities or adding slagging materials to bring out the impurities, the purpose is to eliminate impurities. Impurities can be extracted without heating
, the result is naturally considered an iron-carbon alloy, and by controlling the carbon content, you can get good carbon steel.
But here’s the problem – we can’t really rely solely on physical purification, right?
"If we don't want crude steel, we should switch back to oxygen blowing. But how do we remove slag from this thing?"
This time, the knowledge in Polu's memory could no longer give him the answer - there are different slag-making materials for different molten iron compositions. Without the experience summary of hundreds or thousands of furnaces, there is no way to get it right in one step.
.
"It would be nice if the impurities could jump out on their own."
He sighed.
"I don't have any other solution, why don't I ask the teacher."
He pushed open the door and walked out. The cold wind hit his face. He shrunk his neck and tightened his tight robe. He looked at the steam pickup truck in the yard again, hesitated for a moment, and walked towards it.
Landau Laboratory not far away.
Although the pickup truck feels little different from an internal combustion engine when driving, even if it uses magic power, it still needs to burn the boiler for 10 minutes before departure. At this temperature, it may take 15 minutes! After all, it is impossible to install equipment capable of flash evaporation in this volume.
.
Because it has not been used for the past two days, it may take half a day to heat up the car before it can run. At this time, it is probably already gone. So if it is not too far, Polu is a bit too lazy to wait for the process of boiling water, and his scalp is pounding just thinking about it.
If you feel numb, just take a walk for a while.
He strode out of the yard, and the cold fresh air suddenly awakened his dull mind. Not far after walking, the building ahead looked gray, like a fortress, which was Landau's laboratory.
.
Ever since he got the transformation machine, Polu has found a reason to be lazy. The two laboratories of Landau and Polu were built using the transformation machine. Their shape is the same as that of the shipyard, but much shorter.
Polu placed his laboratory in a corner of the town so that people could come to him for various reasons.
But for some reason, Landau has always requested that his laboratory be located far away from the town. It is also in Hongshan and Ta Island. Obviously there is still a lot of space in the town, and there is enough space to arrange the land. How big does it want to be?
All are OK. But the laboratory place arranged by Polu for the teacher was flatly rejected by him.
"No, I don't like it. I want to practice here."
Landau pointed to a wasteland outside the town.
So now Polu is in a bare wasteland. There are no trees around, only withered yellow weeds swaying in the wind. There is no one in the wilderness, and his ears are filled with the sound of wind. The scattered snow in the wilderness has been frozen out.
A hard shell that makes a crunching sound when stepped on.
After walking for a while, Polu felt a loneliness like there was only one person left in the world.
"...Teacher, why do you have to build the laboratory outside? It's a bit scary to have to walk this way alone at night."
"It can't be because an alchemist's laboratory is like a chemist's laboratory and he likes explosions, right? But you haven't seen an explosion in so long?"
When he came to the heavy door, it was the familiar door again - this time he knew the password. He unlocked the door code of the laboratory and walked into the huge laboratory like a workshop. Zhu Yiwei was carving a piece of crystal in front of the experimental table.
.
"Zhu Yiwei, are you also studying crystals today?"
She was casting a spell with her right hand, and she couldn't seem to raise her head, so she had to use her left hand to signal that she couldn't be distracted, which was considered a greeting.
"Then you get busy first, I'll go find the teacher."
Polu continued walking inside, passing a long row of shelves, and finally saw the teacher who was busy in front of a test bench.
"Teacher, I have a question."
"Ask directly."
"How to extract impurities from molten steel?"
"What?"
Hearing Polu's question, Landau raised his head and looked at him with a strange look.
"Didn't you make a screening carousel before? Didn't it work well at the time? Something went wrong?"
"No, no, teacher, please listen to me..."
After Poirot explained his reasons for abandoning the screening carousel, Landau pondered for a moment:
"So, you want a device that can extract all impurities except the designated target by just putting it in without manpower?"
"Yes."
"If you still use the classification circle and don't want to use manpower, wouldn't it be over if you just build a steam spoon machine?"
Landau's idea was actually so simple and crude, but the conclusion he reached was still not in line with Polu's expectations.
"Teacher, I have also considered it. The main reason is that I also want to get rid of the classification circle composed of dozens of steel plates. Building a classification ring for each furnace takes up too much space. If it doesn't work,
Use this trick last. I just want the impurities in the molten steel to jump out on their own!"
"Jump out on your own? What a beautiful idea! Where in the world...wait a minute, let me think about it, I seem to have seen something similar."
Landau suddenly stopped in the middle of his taunting. He raised a hand and lowered his head to signal Polu to be quiet. His expression showed that he was searching for something in the corner of his memory.
"There is something that may be similar. It was used by a great alchemist to collect magic materials from magma. I have seen it in books, but I have never seen it in kind."
"Let me look for it!"
Landau walked to the foot of the wall, opened the huge book box that had not been seen for a long time and had left a huge shadow on Polu. After rummaging a few times, he closed the lid with a bang.
"Not this box!"
He closed his hands, placed a dozen book boxes of the same size on the ground in one breath, and started rummaging through them.
"Damn it! I always thought the teacher only had one box of books, but there are actually so many boxes!"
"Not this one, not this one. Found it!"
Finally, Landau found a beautiful box from a box. He opened the box and took out a notebook that seemed to be very old.
After taking out the notes, Landau did not rush to open them. He held the notes and walked to the test stand. At this time, the things on the test stand floated as if they had consciousness, freeing up a large piece of the desktop. At the same time, the wooden desktop gradually
Arched up, a V-shaped book trough grew out of thin air.
Landau very carefully placed the note on the test bench, as if he was reluctant to touch it with his hands. He gently used the object control spell and gently opened the seemingly inconspicuous note.