Ancient promotion routine

After the venue was silent for a while, there was a sudden burst of cheers here.

"We succeeded!" Although everyone still didn't know what the spray was for, but the white spray came out from the back of the machine. From their point of view, there was finally a result.

The venue was filled with cheers and cheers.

Zhang Yanjin was also very happy. He was still holding the mentality of not being able to make it today and continuing to experiment tomorrow. He didn't expect that one of the steam engines in the batch of steam engines today succeeded. He asked the people behind to turn off the valve.

He just took the towel handed over by Zhang Wuer and wiped the hot sweat on his face and neck. He looked at the workers with joyful smiles on their faces and said, "Okay, that's it for today, everyone. Put out the fire in the boiler first, go back and rest."

After walking out of the temporary test site, Zhang Yanjin felt refreshed by the cool evening breeze.Now that the nozzle and the steam engine are available, he can start making iodized salt as long as he makes the rubber tube.

When spraying iodine water, the iodine water is pressed into the nozzle by the external atmospheric pressure. This section must use a rubber tube, because the rubber tube can be bent, soft and elastic, unlike the iron tube he used in the temporary test today. It cannot be pulled to other places at will like a rubber tube.

Furthermore, once the rubber tube is produced, it can be used in many places, and even a factory can be set up to produce rubber tubes, and then sold to various places.

Rare things are more expensive. In this era, I am afraid that no one can invent rubber tubes like him, but the use of rubber tubes in many places will make many processes more convenient, so the supply must be in short supply.

He remembered that it was only after the [-]th century in Europe that the production process of natural rubber was completely reformed, and natural rubber was made into pipes, car tires and other things. The production technology stands at the forefront of the world?Didn't they become the ancestors of their ancestors?

Thinking that the Europeans will cross the ocean and come to the land of China, but find that all aspects here are many years ahead of them, what do they think?Zhang Yanjin felt secretly refreshed.

However, the production of rubber tubes is not just to break through the shackles of the current technology, he must first find natural rubber.

According to his understanding, at first, only the tropics had natural rubber trees. China did not have natural rubber trees at the beginning. It was only after the National Academy of Agricultural Sciences transplanted that China had natural rubber trees and self-produced natural rubber.

Although there is also such a thing as synthetic rubber, but he has no idea about it at all. In addition, synthetic rubber has already involved the field of polymers, and it is impossible to make it in this era.

After much deliberation, Zhang Yanjin decided to use iron pipes instead of rubber pipes first, and make iodized salt first.

Liu Junyi is coming to Zhongzhou soon. Zhang Yanjin originally wanted Liu Junyi to go overseas to look for rubber trees, but he was afraid that he would not know clearly in the letter, so he wanted to wait for him to come and communicate face to face, but he did not expect the steam engine to be so powerful. The test was successful soon.

In his original plan, he estimated that it would take at least a month for the steam engine to be truly tested. During this period, Liu Junyi was trying to find a way to transplant back the natural rubber trees in the tropics, and by the way, buy some natural rubber in large quantities. When he got the rubber At that time, the production of iodized salt could just start.

I never thought that the steam engine was successfully tested, and Liu Junyi was still on the way. The plan really couldn't keep up with the changes.

Liu Junyi is close to the sea, so it is easy to buy rubber. The climate where he lives is hotter than inland, which is very suitable for planting natural rubber trees. Zhang Yanjin remembers that later generations of countries planted many natural rubber trees in coastal areas. In one fell swoop, China has become the world's fifth largest exporter of natural rubber.

If he really succeeds in getting Liu Junyi to transplant natural rubber trees to various coastal areas, will Zhang Yanjin become the number one exporter of rubber tubes in China?At that time, wouldn't he really open his eyes to see No.1 overseas?

Zhang Yanjin's originally calm heart gradually became eager to try. Since he still has an opportunity in this era, if he doesn't seize the opportunity, wouldn't he be violent?

Zhang Yanjin immediately made up her mind. After Liu Junyi came, besides telling him about planning to produce sea salt, the first task was to let him go overseas to buy natural rubber in large quantities.

As for the production process of rubber, although Zhang Yanjin only knows the general idea, he thinks it should not be difficult. After all, after the rubber tube was produced in England at that time, it was quickly popularized in various parts of Europe.

After making up her mind, Zhang Yanjin went to wash and eat.

A few days later, Zhang Yanjin finally waited for Liu Junyi who rushed all the way to Zhongzhou.

Although Liu Junyi was very tired, his eyes were exceptionally bright.

Walking in the inland this time, for convenience, he shaved off the big beard that he had grown all year round, leaving only a few short beards, and he looked much younger.

"Erlang, why are you, who lives in the mainland every day, darker than me, who often floats at sea?" Liu Junyi and Zhang Yanjin exchanged greetings.

In the past six months, Zhang Yanjin has basically been going through the wind and rain, and often spends a day in the sun, how can she not get dark?

He grinned and teased Liu Junyi: "I heard that Brother Liu and Mrs. Zun finally reconciled?"

When Liu Junyi was wandering in the sea before, even though he was a tyrant in the sea, because there was too little oil and water to be fished out of it, plus he often floated in the sea, his whereabouts were uncertain, and his living conditions were not good, so his family betrothed him. His wife left him.

After Liu Junyi became rich, he first found his wife who left angrily, which Zhang Yanjin did not expect.However, Liu Junyi's behavior won Zhang Yanjin a lot of approval.

A good man stands upright and dominates one side, but is willing to put down his figure for his wife and tolerate his wife at home. This is a real man.

Liu Junyi laughed, and after covering up his embarrassment, he said: "It's not thanks to Brother Zhang's blessing. I made money at sea and had a stable income, which allowed me and my brothers to live a stable life. That's why Madam is willing to follow me." I come back."

The two talked and laughed and entered the room together. After drinking a pot of tea, they finally talked about the business.

After Zhang Yanjin talked about the need for natural rubber, Liu Junyi didn't ask about the use, and said directly: "I have indeed seen this kind of tree in tropical areas. Don't worry, since you want it, I will get it for you."

After that, he paused and said: "Actually, you can tell me this kind of thing in a letter. After I see it, I will have someone buy it for you."

Zhang Yanjin knew that, as bold as Liu Junyi, after the friction at sea, he had completely regarded himself as a brother, and he didn't mean to care about gains and losses at all.

"I don't just want milky white natural rubber, I also want natural rubber trees. Can Brother Liu get them to Xiamen, Fujian? I want you to help me find a suitable place to plant these natural rubber trees there, and even develop Create a garden dedicated to planting natural rubber trees." Zhang Yanjin expressed his thoughts directly.

Liu Junyi thought for a while and said, "Is there any profit in this?"

Zhang Yanjin nodded and said, "I want to use natural rubber to produce a rubber tube for use in salt production."

"Salt making?" Liu Junyi frowned slightly and said, "Brother Zhang, is it true that you told me to use seawater to make salt in your letter last time?"

He has never heard of the idea that seawater can be used to make salt. If it is true that seawater can be used to make table salt, wouldn't it be possible to make huge profits in a short period of time?

After all, every household needs table salt, and because table salt can only be produced from natural salt lakes and brines, the annual output is limited, so the price is expensive.

But if it is really possible to make salt from seawater, the seawater is vast and inexhaustible, and a large amount of table salt can be produced, and sold at that time, wouldn’t it be that there is basically no cost, and you can empty your gloves? White wolf, earn big money?

This is also an important reason why Liu Junyi traveled all the way here even though he thought it was impossible to make salt from seawater.

"Sea water is salty. This is a well-known fact. Why don't people use sea water to make salt? That's because the salt produced by sea water is dirty. But what if we can separate the dirty things in sea water? Then make it What about the salt?" Zhang Yanjin knew what Liu Junyi was worried about, so she explained in detail.

Liu Junyi's eyes were shining brightly, and the mustache around his mouth trembled slightly with excitement.Seawater is inexhaustible and inexhaustible. If it is really possible to make salt from seawater, what a fortune it would be? !

"Erlang, do you have a way to separate the dirty things in the seawater?" Liu Junyi asked.

Zhang Yanjin smiled calmly, nodded and said, "I already have a complete system. As long as you follow my method, you will be able to produce a large amount of table salt from seawater, and you don't need to be as laborious as boiling salt in a pot now."

Liu Junyi grabbed Zhang Yanjin's hand on the table, leaned forward and said, "Erlang, you are really my good brother Liu Junyi!"

Zhang Yanjin also held Liu Junyi's dark and rough palm and said, "Blessings are shared. I have a good way to make salt, so naturally I can't enjoy it alone." Endless risks.