Yang Er immediately picked up the pen and replied to Pei Shiju and others. The letter affirmed and encouraged the achievements of the people. But the focus is on a few things. First, when building a house with a large amount of wind and sand near the lake, deep pits should be dug to make the ground buildings as low as possible. This is Yang Er's method of building houses based on the "ground shack" of later generations. This method can effectively prevent the amount of wind and sand entering the house, and it is warm in winter and cool in summer. The second is to build a pumping windmill from dry wood, and transport the lake water to the salt drying field through the water pipeline by human pedaling. Yang Er's later generations of Wenchuan hometown have no shortage of this kind of pumping windmills, especially in elementary school, after school, they often climb up and pedal a few times. Therefore, I am no stranger to the structure of this pumping truck, and I drew a sample drawing of the pumping truck on paper with a few strokes. It is not difficult to give this drawing to the carpenter's craftsman to make. Third, they ordered all the villagers in the original Gulu Village to be requisitioned and given daily wages, and their task was to salvage kelp and other seafood creatures in the pond water for the army and civilians to eat. Many of the aquatic creatures in the saltwater lake are just that the current ancients did not dare to try to eat them, and for Yang Er, the current ancients were tyrannical creatures and extremely stupid. After a long letter was written, it was handed over to the soldiers who sent the letter and immediately sent it to Pei Shiju in Gulu Village, instructing him to prepare many matters according to the letter. He also said that there would be 5 days at most, and Yang Er would lead the crowd to Gulu Village to join the brigade.

After several miles of emergency construction by the blacksmiths of Luzhou Prefecture, 500 large iron pots have been built. In addition, Yang Er's design of a three-foot diameter drum for filtering brine has also created 500 pieces. Yang Er left 50 people with his family to stay in Luzhou to continue to urge the blacksmiths to make the remaining iron pot barrels, and the rest of the team. Set off to Gulu Village to meet Pei Shiju and others.

After walking on the road for two days, I have seen Gulu Village and the vast Jiechi Lake from afar, I have seen the camp rising from the ground, I have seen the huge pumping truck and the wooden tank connected with the shallow water, and I have seen the wooden frame buried in the ground, which is used to set up a salt pot. I also saw soldiers and civilian workers who were busy. Saw cooking smoke rising from several barracks on one side. Everything looks so harmonious in Yang Er's eyes!

Pei Shiju led the generals to come out from afar, and Yang Er walked close and dismounted to salute everyone in return, and then followed everyone into a large conference hall in the middle of the barracks. The back side of the council hall is Yang Er's "palace". Although it was a little simpler, he didn't see a trace of dust, and Yang Er was very satisfied.

After everyone sat down, Yang Er began to listen to Pei Shiju's work report. When he heard that the number of windmills was 50, Yang Er smiled knowingly. This amount can be used in 50 salt farms first, and each salt farm is equipped with 100 iron pots for drying salt. Each pumping windmill fills salt water into a pot every day to ensure the amount of salt produced on the day. Hearing that the water sink was designed by Liu Xuan, Yang Er became interested in this new scientific and technological talent who joined the team. Pei Shiju hurriedly led Liu Xuan to come forward and talk to Yang Er. Yang Er saw that Liu Xuan was not very old, about 28 years old, with a short beard and a green shirt, and his eyes were particularly bright, and he looked wise and extraordinary.

"Mr. Liu doesn't have to be polite, but he can tell the king about the method of salt making that Mr. knows." Yang Er asked modestly, giving people the feeling of a corporal of Mingjun Lixian.

Liu Xuan first praised Yang Er's waterwheel water transportation and the method of building houses in the ground, and designed a water tank for water transportation in combination with the characteristics of the waterwheel. In front of everyone, he detailed the methods of drying salt that he had mastered. In Yang Er's opinion, the method he said was also feasible, the only drawback was that the salt made according to his method was coarse salt. I didn't think about how to remove the heavy metal particles in the salt, such as magnesium and barium, and I didn't get rid of sulfur and chlorine. Why did the common people in ancient times live relatively long, while the high-ranking officials and rich lived shortly? That is, the common people eat less so-called "refined salt" because of misfortune, and eat a small amount of salt stone or salt substitute called "vinegar cloth" by folk. At that time, refined salt was coarse salt, and no impurities were removed. After eating too much and damaging their teeth, and after the teeth rotted and fell out, the lives of these rich and noble families were basically over. And long-term consumption of this coarse salt will form chronic poisoning, and these rich people will naturally not live long. And the salt made by Yang Er must be refined salt close to later generations, of course, iodine cannot be added to it.

"Okay, now I have ordered you to be the head of the Jiechi Salt Farm, responsible for a dry salt production matter, a total of 500 salt drying iron pots that came with this king in advance, and first take 100 mouths as a salt drying unit, with enough militia soldiers. The required items are solved by Lord Pei Yun. Yang Er finished speaking. Liu Xuan gave up, and if he could show what he had learned, how could he shirk it.

"In addition, there is one more thing that is important. Where is Zhai Rang? Zhai Rang's name was called out coldly, Zhai Rang was taken aback, and subconsciously bowed his hand and said: "The last general is here, and the prince has an order to just order." ”

"General Zhai, this king has ordered you to take 100 soldiers to the nearby mountains to find a kind of white soil, and dig a large amount and send it to the salt field to standby. It takes 10 days to deliver, you can do it? Yang Er said to Zhai Rang in a serious tone. It's more reliable to let Zhai Rang go to find things on the mountain. The kind of soil that Yang Er said, Zhai Rangjiu has been a bandit in the cottage for a long time, and it should be a rare thing that he has seen.

"Is the white soil that the prince said "Guanyin soil", is it not enough food and grass for our army to eat this belly-swelling thing. Zhai Rang was puzzled. How could he not know this white clay? In the famine years, many people in the old generation were hungry and ate this white mud, resulting in a bloated stomach and death.

"You take it yourself, I will use it for my own use, and you will know it when the time comes. By the way, with this king here to supervise the battle, will there be no lack of your white rice? Everyone in the tent looked at Zhai Rang and laughed. Zhai Rang also laughed and said, "Gotcha! Lord, this kind of thing is everywhere in the mountains, it doesn't need 10 days, it will be sent to the big tent within 5 days. "This job is very easy for Zhai Rang.

"Lord Wang, what is the use of this white plaster?" Liu Xuan's desire to learn made him feel strange, and he had to ask clearly, otherwise he wouldn't be able to sleep at night!

"The salt production method that Mr. Liu mentioned earlier can only obtain coarse salt, not refined salt. This time, the king made salt as refined salt, which is different from salt elsewhere. The plaster can be fired to make white lime, which is used to filter coarse salt. The coarse salt is made according to your method first, and at that time, only one more process is needed to make the refined salt. Yang Er was explaining to Liu Xuan at the same time. Liu Xuan and the others suddenly realized after hearing this.

There was a lot of strength in numbers, and the 50 cauldrons that were soon transported were propped up on the shelves. There is also a large round bucket above each pot, and Yang Er explained the function of this bucket to Liu Xuan, and Liu Xuan couldn't stop nodding yes after hearing it.

Soon, through the operation of the waterwheel, the water of the lake, which has a large salt content, flowed through the tank into the corresponding round bucket, in which a foot-thick charcoal was already placed, and several layers of gauze were placed under the charcoal. The preliminarily filtered water flows through the opening at the bottom of the barrel into the iron pot of salt until it is full. He turned to the next iron pot with the same setting. To fill the 100 pots in each field with water, the five people were half tired from stepping on the waterwheel. Fortunately, after the water is full, you can go into the shed to rest for a long time, otherwise you will either die of heat or lack of water under the sun.

The whole salt drying field is full of people and lively. The women were interspersed, bringing water and food to these old men, and some of them sent towels to their favorite Langjun to wipe their sweat and fan on the side. Over the course of a day, the amount of salt water poured into the pot was reduced by half, and white crystals began to appear on the sides of the pot. After the sun sets, the people cover each pot with a cloth that drains water under the unified command to prevent it from raining at night.

On the second day, everyone was more motivated, because they had already seen the yellow-white salt. After one day of drying, all the water in the pot will evaporate. At that time, all that was left on the wall of the pot was a layer of edible salt. Some clever people even tried to light charcoal fires under the pot in order to speed up the evaporation of water. Yang Er believes that this method can be popularized to improve efficiency. Liu Xuan then made improvements to the pot rack.

At noon on the third day, a thick layer of yellow coarse salt was left in all 500 pots, but the crystals were larger. The people put some in their mouths and cheered incessantly. It tasted much better than the salt stone they used.

The first layer of filtration has filtered out the chlorine in the water, and the salt tastes much better. But the heavy metals and sulfur in the salt are still there and need to be further filtered. Yang Er ordered that the well water that had been brought in advance be poured back into the pot, and the people should stir it with a clean shovel to make the salt melt back into water. Command the people to sprinkle the burned lime into about a catty, and then stir. After being quiet for an hour, a layer of yellow substance precipitated at the bottom of the pot, and Yang Er instructed everyone to scoop out the brine in the pot. Then pour out the yellow muddy substance at the bottom of the pot, rewash the pot, and then pour the filtered brine back into the pot and dry it again. After a day, the water in the pot is completely dry, and a layer of fine white salt crystals appears on the walls of the pot. There are people who are quick to take the salt in, and then shout for good salt. attracted everyone, including the surrounding generals and soldiers, they couldn't help but taste the salt. The audience immediately cheered. Liu Xuan put fine salt in the bowl in his hand and hurriedly walked into the big tent. Yang Er was already sitting on the top seat at this time, and there were surprises on both sides.

"Wang Ye Chitose, this bowl is the fine salt made by the prince, please taste it." Liu Xuan was already excited at this time.

Yang Er walked down, lightly dipped his fingers in the fine salt in the bowl, put it on the tip of his tongue, licked it, and nodded, "That's the taste, the color is white and the taste is positive." This king called this salt "anti-salt", what do you think? Yang Er tasted the fine salt that he had never seen in this era, and said arrogantly.

Everyone led by Pei Shiju clapped their hands and said yes.

"This king reiterates a military order, the salt is the autocracy of my Jin Palace, and without the permission of the Jin Palace, it shall not be manufactured in various places. The method of salt production is classified as a top secret and no one is allowed to divulge it. Those who leak secrets will not be forgiven! General Hu'er listened to the order. Yang Er said sharply.

"The end will be." Laihu'er came out of the column and replied with a fist.

"This king has ordered you to lead 200 relatives to patrol along the lake, and 20 miles near the lake is a forbidden area, and no one is allowed to approach the lake. If there is an trespasser, report it! ”

"Order." Seeing the seriousness of the prince's face, Laihu'er didn't dare to be careless, and hurriedly took the order.

"Where is Liang Shitai?" Yang Er is looking for his own path again.

"The end will be here." Liang Shitai replied.

"This king orders you to take the soldiers of the camp to open the road, guard the perimeter of the salt works, take care of the people and craftsmen, etc., screen the population every day, do not steal a single person, do not take it for personal gain, the first offender will be severely punished with 50 military sticks, and the second offender will be beheaded for public display."

"The last general only respects the prince's general!" Liang Shitai clenched his fists and received the order.

"General Daoxing listens to orders." Yang Er looked at Li Jing, who was the first general.

"I ordered you to set up checkpoints at various intersections more than 30 miles away from the Jiechi Salt Farm to check the vehicles coming and going. Without the permission of the king, Pei Junshi, and Pei master, no vehicles and people are allowed to enter or exit. Intruders, seized and interrogated. If there is any private inside, this king is asking for you! ”

Li Jing hugged his fists and said, "Please rest assured, if there is no warrant from the prince and the two Mr. Pei, not a single bird will be able to pass my level." ”

In the end, Yang Er smiled and said to Liu Xuan, the director of the salt factory: "Mr. Liu, you can let go of the arrangement of salt production according to the process of making fine salt, register the amount of salt produced every day, and report to this king every 3 days." In addition, the prepared fine salt is arranged for female workers to be bagged in the shed, with 50 catties per bag as the standard, no more and no less. The weighed and packed salt bags must be sealed and sealed. The finished product must be stored in a shack in the ground, and pay attention to waterproofing. The required materials, etc., should be solved by Pei Master Book. ”

"The prince can rest assured, this salt is not easy to obtain, and it is comparable to gold. How can the villain not be careful. The salt-making process is nearing maturity, and the salt workers are all proficient, and a large amount of salt will be produced every day. I also hope that the prince will solve the problem of sales as soon as possible. Liu Xuan's answer also included thoughts on the next step. Yang Er couldn't help nodding yes after hearing this.

"Alas!" Yang Er let out a long sigh, "The Chinese military generals of this royal mansion are enough to achieve great things, but there is no one who is proficient in business, so what can I do?" "I have read "The Romance of the Sui and Tang Dynasties", "The Complete Biography of the Tang Dynasty", and "The Biography of the Xing Tang Dynasty", and I also know a lot about the history of the Sui and Tang Dynasties, but none of the books mention the big businessmen of this era. The so-called Jin Shang is a monster that will only appear hundreds of years later. There is a shortage of such figures in his staff.