Traveling through history leaving a name

Chapter 31 The Steam Engine

When Liu Rushi was looking for Zhang Qingfeng, Zhang Qingfeng was solving the problem of mass production of steam engines.

The most difficult thing to process in a steam engine at present is the cylinder, which requires the use of a boring machine and good processing technology.

The previous steam engines were all processed by Zhang Qing himself, but now they need to be manufactured in large quantities, and ordinary workers are still required to operate them.

In this way, it is very necessary to reduce the processing difficulty.

To reduce the difficulty of processing, Zhang Qingfeng needs to solve many technical problems.

There is currently only one type of steam engine, and that is a small steam engine that powers machine tools.

Zhang Qingfeng has another idea. Next, he wants to build a large steam engine that can drive trains.

Some of the production capacity in Luping Steelworks is overcapacity, and dozens of tons of pig iron are hoarded every day. At present, it has already hoarded thousands of tons of pig iron. It would be too wasteful if it is not used.

The construction of railways is undoubtedly the most consuming steel. The annual pig iron production of the Gangping Steel Plant can build a railway of [-] kilometers.

If the production of iron and steel is not enough for railway repairs, new blast furnaces can be built to double the production capacity.

Zhang Qingfeng plans to build a railway from Luping to Youzhou first.

In this way, the coal mines in Youzhou can be transported to Gunping in larger quantities, cheaper and faster.

In the future, he will also build a railway from Youzhou to Quanzhou Port, so that goods from Youzhou can be quickly transported to Quanzhou County (now Tianjin) by railway, and then sent from Quanzhou to various places by canal or sea.

The most important thing is that with the railway, the rough and flat steel can be transported outside Youzhou more conveniently, which can not only save costs, but also drive the economic development of Youzhou.

Building a railway is not a fantasy for Zhang Qingfeng. He has various machine tools, and manufacturing a high-power train steam engine is not a problem.

As for the rails, there is molten iron from the blast furnace, and Zhang Qingfeng can directly use molten iron to cast rails. After having the rails, it is not a problem to build another railway with a speed of [-] to [-] kilometers per hour.

The construction of railways can not only consume a large amount of steel, but also promote the development of the local economy. Why not do it.

----

"Teacher, I miss you so much."

Zhang Qingfeng greeted Liu Rushi, a student from afar, in the office of the machinery factory.

"When did you come back?" Zhang Qingfeng asked with a smile.

He was very impressed with Liu Rushi as a student. This is one of the students with the best grades among the students he taught, with an IQ of over [-].

"I just arrived in Yuyang City. I heard that you are here, teacher, so I came to visit you immediately." Liu Rushi said to Zhang Qingfeng with a smile.

"It's good to be back, it's good to be back." Zhang Qingfeng was very pleased.

"Junior sister, long time no see."

At this time, Li Bai on the side also smiled and greeted Liu Rushi.

"Senior Brother Li Bai, long time no see." Liu Rushi replied quickly.

"By the way, teacher, let me introduce you. This is the elder sister I met in Yecheng, Cai Wenji, elder sister Cai. This time I will come to Youzhou to play with me.

Liu Rushi introduced Zhang Qingfeng and Cai Wenji to each other, "Sister Cai, this is my teacher, Mr. Ruixiang."

"Cai Wenji has met Mr.." Cai Wenji on the side hurriedly saluted Zhang Qingfeng.

"Hello, Ms. Cai." Zhang Qingfeng also nodded in return.

"Miss?" Cai Wenji was puzzled. .

"Miss means a young sister, which describes you as very young." Zhang Qingfeng hurriedly explained embarrassingly, it seems that the title of "Miss" did not exist in the Han Dynasty.

"Very interesting title, thank you." Cai Wenji smiled and nodded.

"Teacher, what are you doing here? I heard Uncle Big Niu say what kind of machinery you are making, can you show me?" At this time, Liu Rushi asked Zhang Qingfeng.

"Of course there is no problem." Zhang Qingfeng nodded in agreement.

Then, under the leadership of Zhang Qingfeng, a group of people headed towards the processing workshop of the machinery factory.

"Many of the people here are your juniors. How many do you know?" In the processing workshop, Zhang Qingfeng pointed to some young men who were operating the machines and said to Liu Ru.

"Of course I know him. This is Li Hongzhang, two years younger than me. This is Zhang Juzheng, three years younger than me. This is Chen Youliang, only one year younger than me..."

After seeing these teenagers, Liu Rushi recognized them all.

"Senior Sister Liu, when did you come?"

Seeing Liu Rushi, the teenagers also took the initiative to say hello.

"Just arrived in Yuyang today, Junior Brother Li Hongzhang, what are you doing?" Liu Rushi asked curiously in front of the machine tool operated by Li Hongzhang.

"I'm adding the outer ring of the bearing." Li Hongzhang explained.

"Bearing, what kind of bearing?" Liu Rushi was curious.

"This is it."

Li Hongzhang took out a finished bearing placed on the workbench, pinched the inner ring, and then turned the outer ring. Hearing the rustling sound, the outer ring of the bearing quickly started to rotate.

Liu Ru was very surprised to see this rapidly rotating thing.Cai Wenji next to her opened her mouth in surprise.

"What's the use of this?" Liu Rushi asked more curiously.

"Well, this is used on machine tools. You can see that this lathe can rotate quickly, and there are such bearings inside." Li Hongzhang explained.

"Oh." Liu Rushi nodded.

Then, she came to the machine tool where Zhang Juzheng was.

"Senior sister, I mainly process various gears."

Before Liu Rushi could ask, Zhang Juzheng took the initiative to explain.

"Gears! I understand this, the teacher taught it in physics class." Liu Rushi said.

Finally, Liu Rushi turned her attention to the transmission device behind the machine tool. She could hear the rumbling sound next door, but she didn't know what it was.

"Teacher, what's ringing over there?" Liu Rushi asked Zhang Qingfeng curiously.

"There is a steam engine over there, which mainly provides power for these machine tools. Because the smoke and noise are too loud, they are separated by a wall. If you want to see it, I will take you there." Zhang Qingfeng said to Liu Ru.

"Okay!"

Hearing Zhang Qingfeng's words, Liu Rushi nodded quickly.

Afterwards, a group of people opened a door and came to the steam workshop behind.

In this steam workshop, there are three steam engines running rumblingly to provide power for the machine tools. A coal worker adds some coal and water to the bottom of the steam engine boiler from time to time to maintain the output of steam.

"Wow, that's amazing."

Seeing the rumbling steam engine, Liu Rushi let out a voice of amazement.

Cai Wenji, who was behind her, opened her mouth again in surprise when she saw the steam engine driving the flywheel to rotate rapidly.

"This steam engine, with a speed of [-] revolutions per minute, reaches [-] horsepower, and is mainly used for machine tool power."

Zhang Qingfeng introduced the steam engine and said: "In addition, we also manufacture some simple steam engines with a speed of only [-] revolutions, which are mainly used for mine pumping. Currently, Youzhou Coal Mine and Luping Iron Mine are using this type of steam engine."

The simple steam engine that Zhang Qingfeng mentioned is of course the Watt steam engine. At the technical level at the end of the eighteenth century, this kind of steam engine has a simple structure and is a very good choice for pumping water in mines, and the cost is relatively low.

The steam engine that drives the machine tool is several generations advanced, and its structure is more complicated than that of the Watt steam engine, which is equivalent to the technology of the [-]th century.

(End of this chapter)