Ancient promotion routine

In this era when patriarchy is supremacy and women are oppressed, Li Rongniang in history was able to break the shackles step by step, becoming the first female emperor in history and reaching the peak of feudal society, which is truly admirable.

But the sad thing is that there are too few women like Li Rongniang in this era, and they are even oppressed. A woman can do what she can.

Rao, there are some empress dowagers who are in power, and they can only listen to the government behind the curtain. No one can add a yellow robe like Li Rongniang and be crowned a great treasure.

Maybe, he can let Li Rongniang take charge of the tea factory?Let her manage the female workers?Thinking of Li Rongniang's shrewd and capable style in history, and leaving behind the policies of the current emperor when he was in power, Zhang Yanjin couldn't help being moved.

After all, there are still many places where he needs female workers in the future. After the peony garden is built, flowers will flourish, and many small factories around will multiply. All of these need careful women to do the work.

This idea was rejected by Zhang Yanjin as soon as it came up. Firstly, Li Rongniang was still in Zhao Guogong Chu Chigong's house, and secondly, even if he could bring Li Rongniang here, it would have a great impact on Li Rongniang's status.

After asking Zhang Wuer about the situation of the tea factory, I heard from Zhang Wuer that no one in the tea factory dared to bully Liu Yueer and Liu Taohua at will since he promulgated the new regulations that day. Taohua and Liu Yueer can make money, and they also want to work in the tea factory.

Since everything was ready in Pingdingshan, Zhang Yanjin dispatched additional manpower when he came back this time, and arranged a large number of people to dig here, and the salt mine was dug out within three days.

After digging a part from the top and putting it in a box, Zhang Yanjin immediately wrote a memorial, and asked the messenger of the post station to send it to the emperor quickly.

The news that Zhang Yanjin had really dug out the salt mine in Pingdingshan also spread like wildfire, blowing all over the place like a cool autumn wind.

Even though it was the autumn solstice, the weather was still hot, but this couldn't stop the people of Zhongzhou from cheering.Originally, after experiencing the great flood in Zhongzhou, they were ashamed, but they did not expect Zhang Yanjin to come and help them excavate Xinyang Maojian, which is now Pingdingshan Salt Mine.

In ancient times, salt was the economic lifeline of the imperial court, and even a three-year-old child knew the value of salt.Now Zhang Yanjin has not only dug out a salt mine, but also a salt bed stretching over a hundred hectares. How can this not be exciting? !

Some time ago, all the bad rumors about Zhang Yanjin in Zhongzhou were self-defeating, and even reached the point. If anyone in Zhongzhou mentions those unfavorable rumors about Zhang Yanjin, they will definitely be cast aside.

A matter as big as the salt mine must be reported to the imperial court, and the imperial court will decide how to deal with it.

The fact that Zhang Yanjin dug out the salt mine completely hit the arrogance of Zhou Qin, Gao Shijie, Chen Guogong, and Han Guogong, leaving them speechless.

Above the court, Chen Derang, Li Lian, Zhang Zhongqian, and Chu Chigong even argued with reason, saying that Zhongzhou was still under reconstruction, and that the salt mines could just be used to develop Zhongzhou's economy and save the treasury expenditure. It will not be too late for the court to accept it.

After some debate between the two parties, the emperor decided to follow what Chen Derang and the others said, and let Zhang Yanjin excavate and develop the salt mine for the time being to develop Zhongzhou's economy.

The fact that Zhang Yanjin really dug out the salt mine in Pingdingshan also shocked Huang Xiujun and Yuwen Shangkai, two people who claim to know geography very well. At first, they thought it was Zhang Yanjin's intentional release of the news, and they didn't believe it at all. Pingdingshan was able to dig out salt mines. It was not until the two saw it with their own eyes that they believed that Zhang Yanjin had indeed dug out salt mines in Pingdingshan.

Huang Xiujun and Yuwen Shangkai originally had a certain amount of geographical knowledge. At this time, Zhang Yanjin dug out the salt mine to a certain extent, negating their original arguments, which made them immediately doubt their original theoretical judgments. After that, they will come to Pingdingshan to do research.

Zhang Yanjin was really scared by Huang Xiujun and Yuwen Shangkai's questioning, so she simply hid and asked Zhang Wuer to deal with Huang Xiujun and Yuwen Shangkai, while he stayed behind closed doors.

Chen Su didn't have those theories. When he saw Zhang Yanjin dug out the salt mine this time, he felt that Zhang Yanjin was very powerful. How many benefits have come.

"Erlang, let me do the math, the benefits brought to Zhongzhou every year are not only hundreds of thousands of guan, but literally millions of guan!" Chen Su's eyes lit up after calculation.

"Forget it." Zhang Yanjin said lightly.

Chen Su quickly checked the accounts he had just calculated, and felt that there was no problem. He said in a daze, "Where is the undercount." After all, he even included the amount sold overseas and to the west of the Hexi Corridor.

"You underestimated our technology." Zhang Yanjin said with confidence.

There is no way to compare the current salt production technology with that of later generations, and there is no way to compete in natural quality.

Now that he has mined the salt mine, of course he can no longer use the salt-making methods of this era to make table salt, and must improve the production process to a certain extent.

No matter what, he will offend Zhou Qin. Now that he has offended him, why not directly improve the production process of salt and completely occupy the market?

In Chinese history, the common people first collected the brine that existed in nature and the salt that crystallized naturally in coastal depressions, and ate them. That is, the salt lake that is naturally formed in Qinghai now, let the water in the salt lake crystallize naturally, and scraped it off for consumption.

When the salt-making process really started to develop, it was from Susha's cooking sea into salt.

According to legend, the Susha tribe lives near the sea. Once, the Susha family brought a jar of seawater back from the sea. He wanted to cook fish as usual. He never thought that he had just put the seawater on the fire, and it happened that a big wild boar was flying fast. fly over.

How could Susha let her go?So he got up and ran away, and when he came back after hunting wild boars, he found that the sea water had been boiled dry at some point, leaving only a layer of white powder under the clay pot.

When Mrs. Su Sha tasted it, it was fresh and salty. On a whim, he spread the white powder on the washed wild pork. The roasted wild pork was very delicious.This white powder is the salt used later.The Susha family was also honored as Yanzong by later generations, and some places even built temples for him to honor him.

Perhaps it is precisely because of Susha’s boiling sea salt, for a long period of time in later generations, common people used similar methods to make salt, that is, boiling salt in a pot, burning charcoal first, and pouring salt well water on it. Ways to scrape off the salt.

These methods are all time-consuming and labor-intensive, and the purity of the salt is not high.

After the development of technology in later generations, salt was produced by raising brine. With the development of science and technology and the addition of mechanical equipment, the technology of salt production became higher and higher, the technology became more and more advanced, and the purity of salt became higher and higher.

Then came the modern salt-making process, using membranes for filtration, covering the crystallization pool with plastic film to evaporate, forming a large-scale mechanized production, making the salt process more and more advanced, which is very convenient.

The salt making technology of the Great Wei Dynasty was still at the level of boiling salt in a frying pan. Because there were too many impurities in the seawater, the salt lake and natural brine in Qinghai were used to cook salt in a frying pan or burn charcoal to scrape the salt.

The salt mines in Pingdingshan are salt beds formed by the natural evaporation of seawater for tens of thousands of years, and the purity is naturally not as pure as the salt lakes naturally formed by these closed inland rivers in Qinghai.

If he wants to occupy the market, he must find a way to improve the process and purify the salt excavated from the salt bed. This is the reason why he has stayed behind closed doors for so many days. He has been thinking about how to make and purify salt. After all His knowledge of this area is also limited.

What's more, he wasn't just satisfied with making pure salt, he also wanted to add iodine to it.

In this era, no one knew that iodine could be added to table salt.Therefore, people often suffer from big neck disease, and the doctor will let them eat some kelp and the like to treat big neck disease.

In some relatively closed places, iodine deficiency has been lacking for a long time, and the common people don't even know that big neck is a disease. People in a village or a small town have big necks.

This phenomenon is rare in overseas areas due to being close to the sea, but it is not uncommon in areas west of the Hexi Corridor.

Since there is a demand for this iodized salt, it proves that there are benefits to be obtained.

Furthermore, iodized salt is also very beneficial to the health of the people of the Great Wei Dynasty.

The method of adding iodine and the amount of iodine Zhang Yanjin is not worried. In order to be close to life in the chemistry test in junior high school, a question was often asked, which was to ask how much iodine should be added to table salt. After so many tests, he had already Already familiar with the heart.

As for the way of iodine addition, he intends to use the same method as the modern one, to carry out spray iodine addition.

In the modern salt-making process, the first step is to draw seawater from the sea, and then filter it through a sophisticated process.

After the filtration is completed, the resulting seawater is more than ten times cleaner than the original seawater.This step is to completely remove the impurities visible to the naked eye such as mud and seaweed in the seawater.

The seawater in the salt bed under the Pingdingshan has completely evaporated with the passage of time, so Zhang Yanjin intends to omit the first step directly. As for the impurities visible to the naked eye, such as sediment and seaweed, they will be removed together with the magnesium chloride in the second step. Remove, or use fine gauze, and activated charcoal to remove.