331 Cables that can't be made

Lin Yuan said with a smile: "Of course you have benefits, as soon as this mine is established, the silver earned, I let you British take the big head, we Chinese take the small head." ”

Anderson glanced at Lin Yuan suspiciously, and said, "Why do you want to do that?" ”

Lin Yuan said with a smile: "Silver will not be born out of thin air, if you want to make 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 always can't beat us, their officials all want to fill their own pockets, such a country is only worthy of being our slaves!" What he didn't know was that he had fallen into Lin Yuan's trap.

Anderson smiled slightly and said, "Okay, if there is such an opportunity, I will come to cooperate with Lord Lin." Then Anderson took his leave.

Liu Jinqiu came out from behind the screen and asked, "What's your next move?" I didn't understand it too much. ”

Lin Yuan said with a smile: "We changed the British Biseki is not safe, I want to make them think that I want to build this mine, and I guarantee that if they take the lion's share, they will want to build a mine here." ”

Next, Lin Yuan sent someone to sneak into the consulate secretly, changed the standard color card of the British, and the reverberatory furnace in the industrial area was also built, Lin Yuan came to the copper smelting area of the industrial area, Liu Jinqiu saw him and asked in surprise: "Why are you here?" ”

Lin Yuan said with a smile: "I want to see when the copper can be smelted, so we can build a power plant." ”

Liu Jinqiu smiled: "Are you sure you want to go in and see?" ”

Lin Yuan saw Liu Jinqiu's appearance, as if there was something unsightly inside, and couldn't help but ask curiously: "Why, can't you see the things inside?" ”

Liu Jinqiu didn't answer Lin Yuan's words directly, took Lin Yuan to the factory, and before entering the factory, he handed Lin Yuan a thick mask and a work clothes, and said with a smile: "Put them on, the ash inside is too big." ”

Waiting for Lin Yuan to put on the set, Liu Jinqiu said: "You came just in time, our equipment has just been commissioned, and today is the first day of official operation." ”

Lin Yuan entered the first factory, in the corner of this factory, a chimney of nearly ten meters into the sky, in the middle is a huge boiler, the three pipes on the side of the boiler stretch out to the factory in the distance, there are many people busy around it, everyone is wearing thick masks, Lin Yuan took off the mask down, and said with a smile: "There is not much dust." ”

At this moment, the people on the side of the boiler raised a red flag and waved it down, and the three of them moved a gate together, which was the exit of the coal bunker, and as soon as the gate was opened, the coal that had been crushed into small pieces rolled onto the grate, and soon, a raging flame was ignited on the grate.

Liu Jinqiu smiled: "There should be dust at this time." Lin Yuan asked: "I think this is a boiler, do you need a boiler to smelt copper?" ”

Liu Jinqiu explained: "This boiler is used to produce high-pressure steam, and the steam is transported to the next plant, where there is a piston air compressor, which pushes the air up to form a high-speed air flow, which then brings the pulverized coal into the reverberatory furnace, which is already loaded with copper ore in advance, and then the copper ore is heated and melted in the launch furnace. ”

Liu Jinqiu said, and took Lin Yuan to the next workshop, this is the workshop where the reverberatory furnace is located, in the middle of the workshop is a three-meter-high rectangle, as if a big box is buckled on the ground, suddenly, Lin Yuan felt a burst of heat, it turned out that the furnace mouth was opened, and the molten copper water and slag inside were discharged from the furnace at the same time.

The slowly flowing copper water flowed towards the next furnace, and Liu Jinqiu pointed at them and said: "Those are matte copper, the main component is cuprous sulfide, and you can get blister copper by smelting it in the furnace below, and blister copper can be refined with relatively high purity through a refining process." ”

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

Liu Jinqiu nodded and said, "I know the truth, you first calculate the copper content." ”

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

Liu Jinqiu also said: "Not only is the efficiency of copper smelting 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 in vain. Lin Yuan smiled: "It doesn't matter, let's solve the problem of whether there are materials first, and we will talk about efficiency later." ”

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

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, warships and fighters, all need to use a large number of electrical equipment, for example, the radar needs to be powered to transmit electromagnetic waves, the cabin needs to be illuminated, many weapons are fired by electric shock, the voltage and frequency of power supply to these equipment are not the same, which requires a large number of electrical equipment, so there are a group of professional electrical maintenance personnel on the Beijing ship.

Lin Yuan and Liu Jinqiu took everyone to the lounge, and Lin Yuan said: "I invited everyone to come just to let you design the cables used in the power supply system. ”

Liu Jinqiu handed a document to Qiu Xian and said: "Our main electricity project today is the electric arc furnace, which requires between 10,000 volts and 110,000 volts. ”

Qiu Xian said: "In our time, the state stipulated: more than 110,000 volts for the high-voltage transmission system, below 35,000 volts for the low-voltage distribution system, the process and structure of the high-voltage transmission system cables are relatively complex, if the power plant and the electrical equipment are very close, we set the voltage at 20,000 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 is still a matter of materials, although we can now smelt copper, but the structure of the cable is very complicated, if it is to transmit electrical energy outside, it is good to say, we can directly make a bare wire, but we have to send the cable to the crowd, so that the cable must have an insulating jacket outside, and there must be an automatic oil-filled structure inside to prevent the appearance of air gaps and destroy the insulating outer layer." ”

"Not only must there be an insulating outer layer, but also an insulating material inside to fill the gaps, and in order to improve the strength, there must be a layer of steel wire armor; With our current technology, I am afraid it is not so easy to build. ”

"The higher the transmission voltage, the higher the requirements for insulating jackets, insulating jackets are generally rubber or plastic, we don't have an organic industry, so how do we make insulating jackets?"

Lin Yuan said: "Since we don't have the materials to make insulating jackets, even if it is a low-voltage cable, we can't make it!" ”

Qiu Xian nodded helplessly, and Lin Yuan said: "The distance of our power transmission is not too far, so it is better to take the spare cable on the Beijing ship and use it first." ”

Qiu Xian said: "Impossible, the cables on the Beijing ship are not able to meet the requirements of electric arc furnaces. ”

Everyone was silent, couldn't this cable be built?

Lin Yuan said: "I have a way, you might as well give it a try, using this method, we don't need insulation, we can also build cables." ”