The coal ore was found by Yu Lao and others on a collapsed gravel beach.
Although the quantity is not large, it shows that the ore is shallow and easy to mine.
Song Liyun quickly wrote down the location. This kind of resource was too hard to find and had many uses. She was simply happier than receiving ten thousand taels of silver.
Mr. Yu's trip was full of rewards. What he was most satisfied with was not the flint, but the iron ore.
No one in the Wu Dynasty had ever looked for mineral veins in Dilu Grassland.
Based on the information provided by Song Liyun, there was iron sand on the Kara River where the Wuda tribe was located, and there must be iron ore in the mountains upstream. Sure enough, the ore vein was found in the Kara Mountain.
The iron ore mining technology in the Wu Dynasty was still very primitive and could not be used as long as it was too deep. It was a surprise to be able to obtain natural veins.
After Mr. Yu got the mineral source, he immediately went to Mida City. He wanted to discuss the mining with Zhao Tingduo.
Coal mines and iron mines are major matters, and they must be reported to the garrison immediately for manpower deployment.
As soon as they finished speaking, the three of them immediately went about their business. Yu Lao sent people to deliver the letter back to the city, and Zhao Tingduo also went to the military camp to arrange for people to go to the coal mountain to collect ore.
Song Liyun returned to the backyard and looked for Wan Youyou everywhere.
She has something to trouble this research geek again.
As soon as he entered the side courtyard, he saw Wu Dan sitting in the flower hall under the corridor, talking and dancing.
In front of him, in addition to Yi Ming Er Fan San He, Si Yuan, Wu Hong, Liu Ming, Qibao and other children, there were also Wan Youyou who also listened with gusto, and Abu who was like an iron tower.
He spoke seriously and listened even more seriously. Song Liyun couldn't help but stand still.
“…The land was completely white, with not a single blade of grass growing, as if it was covered with a layer of snow.
Mr. Yu said it was salt.
Hey! It looks like salt, but I can’t put it away.
I've also tasted it, and it's bitter and astringent, not salty at all..."
Erfan rushed to speak: "It's bitter and astringent? Could it be poison?"
Wan Youyou said: "You can't do this. Even if you want to taste it, you have to use animals. In other words, you need experimental data first!"
Wu Dan touched the back of his head and said naively: "That place is a dead land, there is no grass, no water, not even rabbits, there is no way to find animals!"
After hearing this, Song Liyun finally couldn't help but say: "Wudan, you can also get refined salt there!"
Her words made everyone present widen their eyes.
Wu Dan just said that the dead salt land is bigger than Mida City. If it were salt, how much would it be?
Wan Youyou didn't doubt Song Liyun's words at all, but asked: "Young madam, why don't we get salt from the dead place and buy it from the Wu Dynasty?"
Abu also expressed doubts: "Young madam, there is no salt on the grassland. If there is, the old man will tell us."
This is what everyone wants to ask. The salt eaten in the Dilu Grassland for thousands of years was purchased from the Wu Dynasty with huge sums of money. If the salt from the dead salt land can be eaten, why go all the way to buy it?
Song Liyun was full of confidence in what he said about collecting salt from the saline-alkali land.
In the soil of the earth, salt is everywhere, only the content and concentration differ.
Before the end of the world, most of what humans ate was sea salt. Thanks to mining technology and convenient transportation, coupled with the control of national institutions, the price of salt was not high.
But after the social order in the last days was chaotic, the seawater was contaminated by nuclear weapons, and only the few well salts on the continent were relied upon.
Suddenly, the price of salt soared and was manipulated by a few capitals, making it difficult for ordinary people to buy it.
Some people are extracting salt from the soil that has become a saline-alkali land. The method is simple and requires a large amount of clean pure water.
However, clean water is also a precious commodity in the apocalypse of nuclear pollution.
But on Dilu Grassland, water is no longer rare.
You only need to put the saline-alkali soil into a large basin, add water to dilute and stir, leave it to clarify, take the upper part of clean water, put it into a pot and boil it, and evaporate the water to dry it to get salt.
Song Liyun thought of those coal ores, and then she felt what good luck was.
She laughed at the confused faces: "Abu, please find some people to take Wu Dan with you, and go to the dead salt field to get a few hundred kilograms of soil back. Watch me get salt for you!"
The next day, Mida City Company sent out several teams.
Abu Udan carried a sack and led his people straight to the depths of the grassland. They were responsible for collecting soil, while the other two teams went to collect coal ore.
In the city, Mr. Yu is pestering Song Liyun.
In his hand was a simple blueprint with a tall brick tower drawn on it.
When asked about the process of iron smelting in the Wu Dynasty of the Qing Dynasty, the iron stones were piled in an open space, then surrounded by flint and burned for a long time.
Until the stone cracks and becomes a block containing iron slag, it is then sent to the blacksmith shop to be hammered repeatedly into the finished product.
From stone to discus, this step is the most difficult.
Now Song Liyun came up with a method of making iron in a blast furnace.
You can continuously produce molten iron, directly solving the most difficult first step, and you can even get pig iron with only a small amount of impurities.
Mr. Yu was so excited that he was trembling when he spoke: "Young madam, what should I do with these refractory bricks?"
Because of the high temperature and long time required for steelmaking, ordinary adobe bricks and stones cannot be used to build the blast furnace, and special refractory bricks must be used.
"Using clay, quartz stone, and limestone to process refractory bricks, the shape is..." Song Liyun told Mr. Yu what he knew from books.
Mr. Yu was afraid that he would not be able to remember it, so he quickly took out his pen and ink and tried to remember it.
Wan Youyou, who had been silent next to her, had already sorted out the conversation: "Mr. Yu, I have sorted out what the young lady said. You can see if there is anything else I missed."
Mr. Yu looked at Wan Youyou's neat meeting minutes and sighed: "I have to trouble Miss Wan to write more in the future and write down everything the young lady said."
Wan Youyou's eyes were shining, but she lowered her eyebrows and said, "Don't worry, Mr. Yu, Youyou will record it!"
Song Liyun's face darkened, she would have to have a recording officer by her side in the future.
When she was talking about making iron in the blast furnace, she also mentioned that the slag taken out was the best choice for road construction. It was not only as hard as iron, but also permeable to water and breathable.
Since iron can be smelted, calcining limestone to obtain cement is a trivial matter.
Cement is the first material of construction, and it is almost a magical creature.
These sets made Yu Lao and Wan Youyou feel like they were walking in the starry sky, but they also felt that every item was simple and easy.
Even if Mr. Yu wanted to deny it, he couldn't convince himself.
Thinking about the wind wheel he saw in the Wuda tribe, Mr. Yu felt hot in his heart.
If he hadn't seen those spinning wheels that never stopped, he wouldn't have believed that it was the function of the wind.
That is the erratic wind!
Apart from flying kites and raising crops, who would have thought that you could control the wind!
Only the young lady has this ability to play with the wind submissively.
Elder Yu thought of those rumors in the tribe again, and he gave Wan Youyou a task to write down every word Song Liyun said.
If you want to make iron, you must first make refractory bricks. You can go to the Uda tribe to do this.
There are also coal mines.
Originally, Yu Lao wanted to build the iron-making blast furnace in the Wuda tribe, but Song Liyun rejected it.
Iron smelting, stone crushing, and coal washing all cause heavy pollution, so it is better to choose downstream of the river far away from the tribes.
Although it is too early to say that everyone has a responsibility to protect the environment, we cannot sacrifice the environment for the sake of the economy regardless of everything.
Song Liyun doesn't want this world to become the earth that was destroyed by pollution.
In this way, mining, iron-making, and cement were put on the agenda. Soon, news came from Hecheng, and Zhao Tinglei wrote a reply himself, naturally praising his younger siblings.
Mining requires a large number of manpower, and the garrison office will allocate 5,000 people from the Zhenbei Army to enter the Dilu Grassland in disguise.
This was the second time that 5,000 men and horses were used after Zhenbei Hou entered the grassland to rescue the Wuda tribe 20 years ago.
The reason why they were able to mobilize 5,000 people on a large scale without fear of the Dilu Royal Court was because the Royal Court now had no time to take care of Mida City.
The throne foreshadowed by the Wu Dynasty and the princess brought an end to the superficial peace that had lasted for many years among the four tribes. After several unhappy endings, the Xuyang Grassland War broke out.