Go back to the past and be a schoolboy

Chapter 264 Air Compressor

"Justice prevails, justice prevails!"

The students formed a parade, carrying slogans and shouting slogans, with smiles on their faces from the inside out, and the whole school became a sea of ​​joy.

Seeing that Cheng Nuo was still standing there, the students quickly gave Cheng Nuo a small red flag, and said with a smile: "Professor Cheng, we have won, justice has won! This is for you, do you want to join us to participate?" Parade?"

Logically speaking, Cheng Nuo was very happy to join their team, but thinking of the series of things he might face later, he couldn't bear to spoil this beautiful moment.

After all, in a sense, this is the first time that Chinese people have "defeated" the great powers, and can appear in front of the world as a victorious country with a flick of the hat of a defeated country.

"It's okay, you guys participate first. I still have a lot of things in my hand. I'll come to you after I put them away." Cheng Nuo patted the book on his chest, expressing that he had a lot of things in his hand and it was inconvenient to participate. their gatherings.

Where are the students willing to give up?They all expressed their willingness to send things to Cheng Nuo.

He, Cheng Nuo, has his own ideas, and really has no intention of participating in this false victory, and this also means that its window for the development of heavy industry is getting smaller and smaller, and the possibility of a comeback of the great powers will become more and more likely, and the time cannot be delayed any longer .

Several people argued with each other, back and forth, and accidentally knocked the book in front of Cheng Nuo to the ground.

"I'm sorry, Professor Cheng, we didn't mean it, and we'll clean it up for you now." Seeing that things were messed up, the student hurriedly apologized.

"It's okay, you go about your own business, it's just these few books, don't stay here for too long, and delay your business." Cheng Nuo shook his head again and again, and squatted down to clean up by himself: "The traffic is so heavy , If you stay in place for a long time, there is a risk of being trampled, so I'll do it myself."

Coincidentally, as Wen Yin's last notebook fell to the ground, some newspaper clippings spilled out from it.

Originally, Cheng Nuo would not do the matter of checking people's privacy, nor was he willing to do it.

But what I never expected was that there was a photo of Cheng Nuo in the newspaper clipping that was called out, and it said impressively - Congratulations to the Chinese scholar Professor Cheng Nuo and the German scientist Professor Max Planck for their successful academic exchange activities.

Looking further down, it was basically all big and small news about Cheng Nuo, such as mathematics papers, Qiuxin Machine Factory, chemical industry, etc. Some news even Cheng Nuo himself didn't know.

Picking up these newspapers, Cheng Nuo was stunned, and secretly had some guesses in his heart.

In order to test these conjectures, Cheng Nuo sent the students away, then found a quiet place, opened the notebook, and read it from the beginning.

As expected, it was almost full of Cheng Nuo's big and small news, from his first thesis just returned to China, to his recent speech at Peking University.

Regardless of whether it was Cheng Nuo's article or not, as long as there was something about Cheng Nuo, it was collected and cropped in the notebook.

Some of the reports in the middle were wrong or the records were not in place, and the content was specially expanded and various memos were added above, so everything was in detail.

Looking at it, Cheng Nuo didn't know what to say at the moment.

No wonder just now no matter what, the other party refused to hand over the notebook. It turned out that there was a reason for this.

"When the sun rises in the east and rains in the west, the Tao is not sunny but sunny."

The love between children is always short-lived. After clearing up the mood here, Cheng Nuo immediately began to devote himself to intense work.

Especially this month, not only Austria signed an armistice with the Entente.

As for how terrible the war was in the first four years, I don't need to mention that, but when it comes to some industries, especially heavy industry, Cheng Nuo still fights for it.

Because Germany, as a defeated country, had to surrender its heavy artillery, aircraft, warships, trucks and trains.

As their friendly partner, it is natural to squeeze the last juice.

Especially now that the First World War is over, our country already has a modern domestic banking system concentrated in coastal cities and an important light industrial base, which can just continue to develop in one go.

However, there are good things and bad things, and there are urgent needs and non-urgent needs. After returning to the courtyard, Cheng Nuo led everyone to hold a meeting in the courtyard.

"With Germany's military industrial capabilities, he was defeated. Does Zhiyuan think we are working in the right direction?" Looking at Cheng Nuo, someone raised this question. This is not only a problem for him alone, but also for everyone present Questions in the minds of few people.

Looking at the left side and then the right side, Cheng Nuo supported the table with both hands and said slowly: "I believe that it's not just the comrade just now who has this question, let me briefly tell you here, if Germany is not so powerful If there is no industrial strength, then they will be beaten to the ground just like we did before.

Let alone four years, they may not necessarily persevere for one year. The reason why they will fail is also because the war is not only about military strength, but also about comprehensive national strength.The industry is one of the most important aspects of how to improve the overall national strength. "

After speaking, everyone nodded one after another, and began to seriously discuss industrial demand, going around and around, and finally returning to the steel industry.

"Comrade President, in the past domestic ironmaking technology was more advanced, followed by steelmaking system, and steel rolling technology was the least developed. Now..." Shi Jin stood up and finished the first half of the sentence, looked around and continued: "Now these situations have greatly improved, but the technology of the mining system is the only one that is backward.

This backwardness has led to imbalances in the development of our steel technology, which is not conducive to the long-term development of the steel industry. Therefore, I suggest that our next step of development should be to consider mining. "

Cheng Nuo on the stage thought for a while, and finally said affirmatively: "I have also considered this issue, but in the final analysis, the labor resources are abundant and the price is low, making the mining production process mainly rely on human labor, resulting in backward production technology."

Shi Jin nodded, then shook his head and asked, "But why have we made rapid progress in iron and steel smelting? Before we intervened, we had achieved a lot in this regard."

Cheng Nuo waved his hand to let the other party sit down, and explained: "It's actually very simple. In comparison, because our country has to continuously increase the import of pig iron to Japan, the ironmaking technology is more advanced in ore processing and furnace capacity. This is also relative to other aspects of domestic steel production.

However, these words also reminded me that if we want to develop the steel industry, we must get through the upper and lower industrial chains, especially now that the European War is over. I can’t say anything else, but what is certain is that the price of steel will definitely plummet, and the price may even be lower than that of the war. The previous average level, the cost alone must also consider the raw materials. "

In terms of mining, the Daye Iron Mine owned by Hanyeping Company is the earliest and largest iron ore deposit in China.However, until the fall of the Manchu dynasty, stope mining mostly used dynamite blasting and manual rock excavation to break up large ore blocks for transportation.

It was not until several years later that they purchased several steam pressure rock drills and used steam power to replace manual rock drilling. This is still a relatively advanced mining method in China.

Some other enterprises use a large number of manual operations. Many iron ore mines are contracted by local people. The iron and steel factories buy them at a price of less than ten yuan per ton. .

"Then can we develop some mining equipment to save manpower?" Wu Yulin stood up and made his suggestion.

This is exactly what Cheng Nuo thought, and he continued following the other party's words: "About the matter of the steel factory, in fact, I have always emphasized to everyone that the focus of future development may be in the southwestern provinces, and large factories will also be given priority. The place where Mr. Tesla has been working since he joined our organization."

Tesla on the right nodded and confirmed Cheng Nuo's words: "Yes, Comrade Dean is right. I have been working in the southwestern provinces before, and I just came to Beijing recently. There are abundant water resources. The main content of my work is Help build hydroelectric power stations."

After the other party finished speaking, Cheng Nuo asked everyone: "In other words, we are in the base in Sichuan right now. Let's not talk about the dry season. The power resources are not only sufficient during the wet season, but also very rich. Here I would like to ask the family , is there any way to apply power resources well to mining work?"

As soon as this remark came out, everyone immediately fell into deep thought, whispering to each other and talking carefully.

It's a pity that no matter how you say it, it seems that it has little to do with mining. Even if it is, the substantive help is very limited.

Seeing that everyone could not discuss any results, Cheng Nuo simply put down the teacup in his hand, and said in a deep voice: "Whether it is ironmaking, steelmaking or steel rolling, we either have the technology or the equipment, but mining is the only one. On the one hand, our accumulation is not enough.

But there are too many things we need to repair, many things cannot be said to be missing, but in the short term, the results are too slow, and what we lack most right now is time for development. Only by overcoming the current difficulties can we have a chance We will talk about the future and the distance. "

Shi Jin asked curiously: "If we follow Comrade Dean's opinion, what can we consider next?"

Cheng Nuo said firmly, "Pneumatic machine."

Fearing that comrades would still have objections, Cheng Nuo finally added specifically: "It doesn't need to be too big, a 500-horsepower air compressor is enough."

At this time, the use of pneumatic machines in China has been quite extensive. The Newcomen type steam pump is a kind of pneumatic machine. Pumped water storage uses the underwater discharge of the reservoir to impact the water wheel blades, and then drives various working machines to work.

The later Watt improved steam engine was also carried out according to this principle.

More recently, for example, Cheng Nuo had more contact with the cotton textile industry. At that time, there were mainly two factions in the cotton baling industry, one was traditional manual baling, and the other was machine baling.

In terms of production equipment, foreign foreign companies all use machine packaging, powered by electricity or steam. The packaging machines include electric air compressors or cold air compressors, etc. The packaging efficiency is very high. Compared with this, our side is mainly slow. a lot.

Its working principle is also very simple, that is, fling, vacuum and suction.

Taking the centrifugal compressor as an example, after the gas enters the high-speed rotating impeller, under the action of the impeller blades, while following the impeller for high-speed rotation, it flows to the outlet of the impeller under the action of the rotating centrifugal force, and its pressure energy and kinetic energy are obtained. improve.

After the gas enters the diffuser, the kinetic energy is further converted into pressure energy, and the gas flows into the next stage impeller through the bend and cooler for further compression, so that the gas pressure can meet the requirements of the process.

The pneumatic unit is composed of a compressor and a steam turbine. Cheng Nuo and the others have accumulated experience in the Watson Electric Appliance Manufacturing Factory.

"Well, just to be on the safe side, on the one hand, we buy as much as possible from Germany, and we focus on the issue of air compressors; Plates can also save our time to the greatest extent." Cheng Nuo made a decision.

Everyone in the audience nodded in agreement.

But after the meeting was over, Jiang Jiangzuo stayed and said cautiously: "Zhiyuan, blindly expand the production scale, and the cost pressure will be huge."

Cheng Nuo smiled: "If you talk about ironmaking, steelmaking or steel rolling, then I agree with your point of view, but the situation of mining is quite different."

Jiang Jiangzuo wondered: "How is it different?"

Cheng Nuo cleaned up the things on the table and explained: "Because our steel production structure is seriously unbalanced, the production of primary and intermediate products greatly exceeds the production scale of finished products, that is, the actual production of ore and pig iron greatly exceeds the production scale of steel. The export orientation of raw materials is very obvious.

That is to say, due to the relatively low technical content of iron ore mining, less capital investment, and because iron making, steel making and steel rolling are omitted, iron ore can be directly converted into capital, and the capital turnover is also relatively low. quick. "

Now Jiang Jiangzuo was even more puzzled: "If it's really like what you said, if we also squeeze in, and the steel price plummets, wouldn't we have to lose our heads and blood?"

"Who said? Gold diggers can't make money, but those who serve gold diggers can't be sure." Cheng Nuo raised his eyebrows, took a sip from his teacup with the documents in between, and said, "Nowadays, there are many iron ore dealers who specialize in selling iron ore." Mining companies, such as Hubei Official Mining Bureau, Yufan, Baoxing, Luda, Fulimin, etc., just sold the air compressors to them.”

"It's true, who doesn't want to mine more, even if the unit price is low, they can make small profits but sell more." Jiang Jiangzuo suddenly realized.

Of course, what Cheng Nuo hadn't said was that these iron ore companies could sell them to Qiuxin after mining.

As for why, it is actually very simple. The large-scale domestic iron and steel enterprises, such as Hanyeping, Longyan, Benxihu, etc., all have their own mines and basically do not need external iron ore supply.

If you don't sell it to Cheng Nuo and the others, you can only consider going abroad.

As for the price, it is naturally as low as it can be lowered for you, especially after the end of World War I, when everyone uses less steel, the price of iron ore is even the price of cabbage, and it is even possible to sell as much as possible in a specific period, and how much to lose .

The underlying reason is that iron and steel production is distributed in a pyramid shape from raw materials to finished products, and the proportional relationship of each production link is seriously unbalanced.

The resulting serious consequence is that primary products are heavily dependent on foreign market demand, while iron and steel products need to rely on foreign imports, presenting a situation of large imports and large exports.

What Cheng Nuo had to do was to balance them out.

Pneumatic machine is only the first step to work on raw materials. Elevators, drilling machines, drilling machines, etc. all need to work hard.

(End of this chapter)