Open an aircraft carrier to fight against Japan

Lin Yuan said with a smile: "Of course you have benefits. Once this mine is established, I will let you British take the big part of the silver earned, and we Chinese take the small part."

Anderson looked at Lin Yuan suspiciously, and said, "Why did you do that?"

Lin Yuan said with a smile: "Money doesn't come out of thin air. If you want to earn money, you have to have something to do. In the process of building this mine, I have a lot of opportunities to make money!"

Anderson thought to himself: "No wonder the Chinese are always unable to beat us. Their officials all want to enrich their own pockets. Such a country is only worthy of being our slave!" What he didn't know was that he had fallen into Lin Yuan's trap among.

Anderson smiled slightly and said: "Okay, if there is such an opportunity, I will come to cooperate with Mr. Lin." Then Anderson said goodbye and left.

Liu Jinqiu came out from behind the screen and asked, "What's your back move? Why didn't I quite understand it."

Lin Yuan said with a smile: "It's not safe for us to change the color chart of the British. I want them to think that I really want to build this mine, and I guarantee that they will take the lead, so they want to build a mine here even more."

Next, Lin Yuan sent people to sneak into the consulate secretly, and exchanged the British standard color chart. The reverberatory furnace in the industrial area was also built. Lin Yuan came to the copper smelting area of ​​the industrial area. Liu Jinqiu was surprised when he saw him. He asked, "Why are you here?"

Lin Yuan smiled and said, "I want to see when copper can be smelted so that we can build a power plant."

Liu Jinqiu smiled and said, "Are you sure you want to go in and have a look?"

Lin Yuan saw Liu Jinqiu's appearance, as if there was something shady inside, so he couldn't help asking curiously: "Why, can't the things inside be seen?"

Liu Jinqiu had a laugh, and didn't directly answer Lin Yuan's words. He took Lin Yuan into the factory building. Before entering the factory building, he handed Lin Yuan a thick mask and a piece of overalls, and said with a smile, "Put them on well. There's too much ash in there."

After Lin Yuan put on the suit, Liu Jinqiu said, "You came just in time. Our equipment has just been debugged, and today is the first day of official operation."

Lin Yuanjin went to the first factory building. In the corner of this factory building, a chimney nearly ten meters straight into the sky, with a huge boiler in the middle. Three pipes on the side of the boiler extend to the distant factory building. There are many People were busy around it, everyone was wearing a thick mask, Lin Yuan took off the mask and said with a smile: "There is not much dust."

At this moment, the person next to the boiler raised a red flag and waved it downward. The three of them moved a gate together. This was the exit of the coal bunker. As soon as the gate opened, the crushed coal rolled into the grate. On, soon, the fire was burning on the grate.

Liu Jinqiu smiled and said: "There should be dust now." Lin Yuan asked: "I think this is a boiler. Does copper smelting need a boiler?"

Liu Jinqiu explained: "This boiler is used to generate high-pressure steam, and the steam is transported to the next factory building, where there is a piston air compressor, which pushes the air up to form a high-speed airflow, and the high-speed airflow then carries the pulverized coal Into the reverberatory furnace, the copper ore has been loaded in the reverberatory furnace in advance, and then the copper ore will be heated and melted in the launch furnace."

As Liu Jinqiu said, he took Lin Yuan to the next factory building, which was the factory building where the reverberatory furnace was located. In the middle of the factory building was a three-meter-high rectangle, like a big box buckled on the ground. Suddenly, Lin Yuan felt a wave of heat. It turned out that the furnace mouth was opened, and the molten copper and slag inside were discharged from the furnace at the same time.

The slowly flowing copper water flowed towards the next furnace. Liu Jinqiu pointed to them and said: "Those are matte copper, the main component is cuprous sulfide, and they can be smelted in the furnace below to get blister copper. After a refining process, refined copper with relatively high purity can be obtained."

At this moment, a young man walked up to Liu Jinqiu and said, "Old Liu, we have sent the sample of slag to the inspection center. When will you go to see it?"

Liu Jinqiu nodded and said, "I see, you should first calculate the copper content."

As soon as the young man left, Liu Jinqiu said helplessly: "I don't even dare to look at the test results. Our equipment is still too rough, so the copper content in the slag must be high, and our efficiency is very low!"

Liu Jinqiu also said: "Not only is the efficiency of smelting copper low, but also the flue gas produced by combustion. There is a lot of heat that is not used and can only be discharged into the air for nothing." Lin Yuan laughed: "It doesn't matter, we First solve the problem of material availability and efficiency, we will talk about it later.”

At this time, someone came to report that a group of people came outside and wanted to see Mr. Liu, Lin Yuan smiled and said, "They must be here, let them in quickly."

The person who came was the person in charge of the electrical system on the Beijing ship——Qiu Xian. The people he brought were the engineers responsible for maintaining the electrical system on the Beijing ship. Both warships and fighter planes needed a lot of electrical equipment. For example, the radar needs power to emit electromagnetic waves, and the cabin needs lighting. Many weapons are fired by electric shocks. The voltage and frequency of power supply to these devices are different. This requires a lot of electrical equipment, so there are a group of professional on the Beijing ship Electrical maintenance personnel.

Lin Yuan and Liu Jinqiu brought everyone to the lounge, and Lin Yuan said, "I invite you here because I want you to design the cables used in the power supply system."

Liu Jinqiu handed a document to Qiu Xian and said, "Our main electricity consumption project is the electric arc furnace, and the required voltage is between 11 volts and [-] volts."

Qiu Xian said: "In our era, the state stipulated that: 11 volts or more is a high-voltage power transmission system, and [-] volts or less is a low-voltage power distribution system. The technology and structure of high-voltage power transmission system cables are relatively complicated. If the power plant and If the electrical equipment is very close, we set the voltage at [-] volts."

Liu Jinqiu said: "Of course we hope that the higher the voltage, the better. Is there any difficulty in manufacturing high-voltage transmission cables?"

Qiu Xian said: "It's still a matter of materials. Although we can smelt copper now, the structure of the cable is very complicated. If it is to transmit electric energy outside, it is okay to say, we can just make it a bare wire, but we need Send the cable to the crowd, so the cable must have an insulating jacket on the outside, and an automatic oil-filled structure inside to prevent the appearance of air gaps and damage the outer insulation layer.”

"Not only must there be an insulating outer layer, but also an insulating material inside to fill the gaps. In order to improve the strength, there must be a layer of steel wire armor; these are probably not so easy to build with our current technology."

"The higher the transmission voltage, the higher the requirements for the insulating jacket. The insulating jacket is usually rubber or plastic. We don't have an organic industry yet, so how do we make the insulating jacket?"

Lin Yuan said: "Since we don't have the materials to make insulating jackets, we can't make even low-voltage cables!"

Qiu Xian nodded helplessly, and Lin Yuan said: "Our power transmission distance is not too far, why don't we use the spare cables from the Beijing ship first."

Qiu Xian said: "Impossible, none of the cables on the Beijing ship can meet the requirements for the use of electric arc furnaces."

Everyone was silent. Could it be that this cable cannot be made?

Lin Yuan said: "I have a method, let's try it. Using this method, we can make cables without insulating layers."