According to the statistics of modern society, Shanxi is the province with the largest bauxite reserves in the country, and it stands to reason that it is easy to find bauxite, but if Li Zexuan wants to find it in the shortest possible time, he can only dig the iron mine in his old classmate's house!

Who made him happen to go to that bauxite mine! Who made modern Shuozhou still called Shuozhou in the Tang Dynasty!

There are so many coincidences in this world!

After solving the material problem of the inner lining of the furnace body, there is another problem in front of Li Zexuan, which is the heat dissipation problem inside the ironmaking blast furnace.

The melting point of iron is about 1,500 degrees, and the inside of the iron furnace is a relatively closed space, if the heat is not released in time, this thing is undoubtedly a time bomb, once the heat accumulates to a certain extent, destroying the equipment is a trivial matter, and the damage to personnel brought by the explosion is a major matter!

Modern blast furnaces use special ground fans, with strong horsepower, and the heat dissipation effect naturally has nothing to say, but there is no electricity in this era, even if there is a ground fan, it can't turn up!

In fact, when it comes to cooling fans, we have to talk about the ancient water drainage. Many people think that the water drain with the word "water" should be a water conservancy irrigation tool. In fact, the water drain is a hydraulic blast iron smelting tool invented by Du Shi in the Eastern Han Dynasty. Originally, the blowing tool was called the human platoon, which was agitated by manpower; Then he used animal power to agitate, and used horses more, which was called horse platoon. Until Du Shi adopted water conservancy agitation, so it was called water drainage.

The iron-making blast furnace after the workshop can first use this water discharge to dissipate heat, but at present, the dam on the Bahe River has not yet been built, and there is no certain water potential difference, and the water discharge is also difficult to rotate!

"Let's use animal power to exhaust the air and dissipate the heat first! Next year, dams will be repaired, hydropower stations will be built, and other things will be considered after the power grid is set up! ”

Li Zexuan muttered to himself.

Thinking of this, he picked up his pen and began to draw, and with his current engineering attainments and cartographic skills, it was no problem to draw an improved version of the horse platoon (a blower tool pulled by a horse).

In addition to removing the heat from the furnace by blowing in the outside air, the horse can also bring oxygen to the fire pool in the furnace body, which promotes the full combustion of the fuel.

On a winter night, there is silence, no insects, no birds, and only the sound of pencils rubbing against paper can be heard in the study.

Yunshan is outside Chang'an City, so naturally there is no change of voice, for Li Zexuan, it is just convenient for him to concentrate on thinking and drawing.

Under his transformation, this iron-making blast furnace moved from modern times has gradually lost its original appearance, but its iron-making efficiency has not weakened much, and the transformed blast furnace has become more and more suitable for the current conditions and environment of the Tang Dynasty!

…………………………………

Two days passed in a flash.

Li Zexuan hadn't been out of the study for two whole days, and Han Yuxi, who knew her husband's character, wanted to persuade her to go back to her room to rest, but she didn't persuade her! Because she knew that persuasion would be useless, but would only increase Li Zexuan's troubles.

In the past two days, Li Zexuan has eaten and lived in the study, and a thick stack of drawings has been piled up in front of him, and those scrapped drawings have been thrown on the ground all over the ground, on the other hand, his complexion is not haggard, but he can't see any haggardness, which is precisely thanks to the huge spiritual power brought to him by the "Taixuan Sutra", as well as the endless internal force! Otherwise, if you change someone, you will definitely be tired!

Why is he fighting so hard? Li Zexuan may not be able to answer this question himself, it is reasonable that he is now powerful and has a wife, he just needs to eat and wait for death like other second generations, there is no reason to fight so hard! If you really want to tell a reason, maybe you can only say that this is the persistence in the bones of an engineering otaku!

"Whew! Ha ha~! Completed! ”

On the morning of the third day, Li Zexuan connected all the drawings drawn in the past few days and checked them, and after finding that there were no problems, he breathed a sigh of relief and laughed.

"Squeak~!"

Almost at the same moment, Han Yuxi pushed the door in, his eyes were red, and he said distressedly:

"Xianggong! Now that you're done, let's go and rest! It's up to the concubine to clean it up! ”

At this speed, it's obvious that this woman has been guarding outside the study!

Li Zexuan was a little moved in his heart, this little woman! It's heart-wrenching!

"Haha! The husband is not as delicate as you think! The lady is relieved! Why don't we go to the room and study the art of the boudoir? ”

Li Zexuan touched his daughter-in-law's smooth cheek and said with a smile.

Han Yu said angrily: "Xianggong! When have you been thinking about this? Go to sleep! If you haven't fallen asleep after a quarter of an hour, the concubine will directly cut herself off! ”

To be able to say such a thing, it seems that she is really anxious and really annoyed.

Li Zexuan hurriedly said: "Okay, good! I'm going to sleep for my husband! Lady, don't say such things in the future! Ay! Looks like I'll have to wait a little longer before I can rest! ”

Just as he was about to move to the bedroom, he suddenly paused and said.

"Xianggong! You ....."

"Huh! The lady is not in a hurry, not because her husband does not sleep, but because a guest is coming! ”

Han Yuxi was about to get angry, but Li Zexuan interrupted her and said.

After finishing speaking, the goods put their hands behind their backs, and Shi Shiran walked outside the house, the reason why this was completely because he had just heard a sound of footsteps outside the house.

"Father-in-law! Fu Bo, Xiao Bin, are you here? ”

After a while, Li Zexuan's laughter came from outside the house, Han Yuxi thought that Li Zexuan was bluffing her just now, but after hearing the "father-in-law", she couldn't care about Li Zexuan's anger, and hurriedly ran out!

Outside the house, it was Fu Bo and Han Li who came with Fu Bin and four other middle-aged people.

"Young master, what you explained before, the old man doesn't dare to slack off, today is here to make a mistake!"

Fauber stroked his beard and laughed.

"Haha! Go in and say! Go in and say! ”

"Daddy? Are you here? Daughter, I'm going to pour you tea~! ”

When Han Yuxi walked out of the study, it happened that Li Zexuan and the others had just entered the main hall, and when they saw Han Lizheng, she said happily.

Although Yunshan Villa is very close to Hanjiazhuang, after she and Li Zexuan came over, Han Lizheng rarely came here, and usually came when there was something, so she was so excited at this time!

"Haha! Lady, don't forget to pour a cup of tea for Fubo! ”

Li Zexuan joked with a smile.

"Yikes!"

Han Yuxi thought that her father was not the only one who came, and hurriedly said, "Of course... Of course, I won't forget! ”

There was a good-natured laugh.

Li Zexuan looked at Han Lizheng and said with a smile: "Father-in-law, you will have to come over often in the future!" Otherwise, Yuxi will treat you as a guest at that time! ”

.......................

First update!

(End of chapter)