If a few days ago, this pile of salt was still a shiny piece of salt, dazzling people's eyes, then today's refined salt with uniform color and uniform grains was really beyond their imagination. Shen Xing even rushed over and grabbed it with his hands. He picked up the refined salt, rubbed it on his face, and shouted: "It's like cotton, it's like cotton!"
Everyone laughed.
Liu Zheng also laughed and said: "Eating refined salt can at least help people live a few more years!"
Everyone was amazed, but no one didn't believe it. Because they were vividly aware of the production process, and they had been eating the many inedible impurities for many years. Who knows how many lives they lost!
Liu Zheng looked at Zheng Yueru with a smile: "How?"
Zheng Yueru was so shocked that she couldn't speak. What else could she say at this time? She smiled bitterly and said: "Brother Liu, how should we price this salt?"
Everyone laughed.
A few days ago, Zheng Yueru was still hesitating whether this would be beheading. Today, he has begun to consider how to set the price. Of course, the nature of the businessman has some influence, but more importantly, Zheng Yueru also understands that if this silver beach is really all salt, what will be the price? What kind of changes will Yinzhou bring, and even how much changes will it bring to the world structure? This is no longer a simple question of whether it is a crime.
And she asked this question well.
How to price?
Since ancient times, this salt has been controlled by the imperial court, and it has been a major source of income for the imperial court. It is how much money the officials say. It has never been cheaper. What they don’t know is that salt is the most expensive thing on earth. There are really too many... Even if we let go of eating and mining, it will probably take hundreds of millions of years to finish mining.
The so-called regulation is nothing more than a result of huge profits.
so......
Coarse salt is so expensive, but what about refined salt?
"Miss Zheng will discuss it. I will only be responsible for the production!"
Liu Zheng deliberately bowed, and everyone snickered. Zheng Yueru even blushed because of Liu Zheng, glared at him fiercely, and then turned and left. She also looked at Liu Zheng's salt-making craftsmanship, which lasted for six days and six days. There is no rest at night.
Another ten days.
In these ten days, the ten backbones have basically mastered the mining of lake salt. The project of enclosing the land and building the city is also proceeding steadily. This is destined to be a huge project. In the drawings drawn by Liu Zheng, the entire The Silver Beach Project is mainly divided into three parts. The first is the collection workshop, the second is the tobacco drying workshop, and the third is the salt washing workshop. This is the lake salt part. As for the mine salt, it is more complicated.
Mine salt production is mainly divided into two links: brine mining and salt production. Different mine types use different brine mining methods. The methods for extracting natural brine include fishing, gas lift, oil pumping, and deep well submersible brine pumps. , self-injection brine mining and other methods. In rock salt mining areas, drilling water-soluble mining methods are mostly used, some use single-well convection method, and some use double-well hydraulic fracturing method.
The initial brine mining was to collect brine from the shallow part of the earth's surface, and the depth of the well was about tens to hundreds of meters. A building frame was used to collect the brine, and a fixed pulley was installed to collect the brine. There was a two-story towering derrick above the well. The derrick was equipped with a pulley and two descending ropes. There is a bucket attached to one end, and 4 people pull it together. When it is put down, the bucket filled with brine at the other end is lifted up. When the bucket is lifted up, the brine is poured into a container next to the derrick, and then used The gap is drained through the grate tube and poured into the brine tank next to the stove. On the large stove for frying salt, there are five pots lined up in a row, and the brine is fried in the pot to turn into salt.
This means that the largest part of the mine salt mining process is the drilling process.
Liu Zheng used the relatively advanced Zhuotong well drilling technology in ancient times.
To dig a small-diameter well. The diameter of the wellhead of the Zhuotong well is only nine inches, and the maximum depth is more than 100 feet. In this process, Liu Zheng used the "circular blade" drilling tool. The invention of this new impact drill bit made it possible to mechanically drill the well, that is, using
The circular blade is a drill pipe with a chisel bit, which smashes the rock at the bottom of the well and gradually deepens the salt well. This circular blade is designed to be spherical, which is also the basis for the subsequent evolution of various drill bit shapes.
In order to realize this kind of drill, Liu Zheng directly moved the fine iron workshop and weapon workshop of Shengongfang.
When the circular blade drills to a certain depth, it is necessary to lift the drill bit and fish out the cuttings and sediment. The method is to put a simple lifting device into the mud barrel and automatically load the cuttings and sediment into the wellhead. After the well embryo is formed, use
The big bamboos are hollowed out by removing the joints and "the male and female are connected". They are lowered into the well to make an artificial well wall, which can prevent fresh water from the ground from seeping into the well and prevent the salt well from collapsing or sinking. This is also called "cutting the ground to plant bamboo"; using a smaller diameter than the salt well diameter
A bamboo tube is used as a brine container, and a cowhide is used as a piston at the bottom of the tube. The tension of the water at the bottom of the well and the downward pressure of the water in the tube are used to draw the brine out of the wellhead. A large wooden frame is erected at the wellhead, and a cart is set nearby, and one end of the rope is tied to the cart.
plate, and drive the windlass on the wooden frame to extract the brine.