Traveling through history leaving a name

Chapter 29 Steel
"Why are there so many sergeants on this tank boat?"

From Yuyang to Junping along the Jiyun River, Zhang Qingfeng found that there were soldiers on many tank boats, and he was a little curious.

Hearing Zhang Qingfeng's question, Yang Shen explained: "This year, the general will use troops against Liu Biao and Sun Quan, and there is a great demand for ordnance, so he sent the Chinese Military Advisor (Xun You) to stay in Yecheng to preside over the internal affairs. He attached great importance to it, so many military ships were sent to transport iron, and the iron and steel would be transported to Xuchang to form a large army of weapons supply."

"I see."

Hearing Yang Shen's words, Zhang Qingfeng nodded.

According to history, Cao Cao will march south this year, and then there will be the defeat of Chibi.

In this Southern Expedition, the military supplies needed by 10,000+ people are very large, and the high-quality steel produced on a high level is undoubtedly very important to the court.

Since the last time Cao Cao met with Li Bai and Yang Shen, the rough steel workshop has basically been nationalized, and special officials have been assigned to manage it.

However, no matter how many people were sent, the head of the steelmaking workshop was still Yang Shen, because other than him, no one else was qualified for this position, and the officials sent could only help Yang Shen.

In addition to supplying military supplies, the Luping Steelmaking Workshop also supplies iron for farm tools in various parts of Youzhou, so the output is still not very sufficient.

After Cao Cao mobilized too much steel to start the war this time, Yang Shen suddenly found that the Rough Ping Steel was no longer enough to supply private iron, so he thought of the blast furnace ironmaking technology that teacher Zhang Qingfeng once said.

This time Zhang Qingfeng was invited out of the mountain mainly for this reason.

Without the rugged high-quality steel, the industry, agriculture and commerce in Yuyang would not have developed so fast in the past two years.

They set off in the morning, and in the afternoon Zhang Qingfeng and Yang Shen arrived in Luping County.

"Teacher, this is Liu Ping and Liu Lingzuo." Yang Shen introduced a middle-aged man to Zhang Qingfeng in the Luping County Office.

Lingzuo is the assistant officer of the county magistrate, and belongs to the positions of county captain and chief registrar in later generations.

Then he introduced Zhang Qingfeng to Liu Ping and said, "Liu Lingzuo, this is my teacher, Mr. Ruixiang."

"Mr. Ruixiang, I've heard you famous for a long time." Before Zhang Qingfeng greeted him, Liu Ping saluted Zhang Qingfeng first.

Although Zhang Qingfeng has no official position, he is the teacher of Li Bai and Yang Shen, and has friendship with Master Xun Yu. He is in awe of such a person.

"Hello!" Zhang Qingfeng nodded towards the other party.

Liu Ping was a little taken aback by the very modern way of greeting.

"Lord County Magistrate, Mr. Ruixiang, you must be hungry because you have been exhausted all the way. I have already prepared a banquet, so please come with me." Liu Ping warmly greeted Yang Shen and Zhang Qingfeng and his party.

It can be seen that this Liu Ping is very good at life.

Under Liu Ping's arrangement, Zhang Qingfeng took a group of students to have a delicious meal at the county government office, and they were finally arranged in a unique courtyard.

The next day, Yang Shen took Zhang Qingfeng around Luping County and asked Zhang Qingfeng to see the situation of Luping.

Relying on the convenience of the steel factory and the Chaobai River, Guangping has more workshops than Yuyang City, and its business is very prosperous.

A few days later, Zhang Qingfeng began to lead the students to work.

Regarding the construction of the blast furnace this time, Yang Shen mobilized a lot of manpower and material resources for Zhang Qingfeng to drive, compared with no one who dared to make irresponsible remarks.

Blast furnace ironmaking is very simple for Zhang Qingfeng, and he spent a lot of time preparing before time travel.

Of course, Zhang Qingfeng's coming out of the mountain this time is not just to make a blast furnace for ironmaking, he is going to build a blast furnace for ironmaking, and at the same time make out the open hearth furnace for steelmaking.

When blast furnace ironmaking, blast furnace gas is produced, which can be used as fuel for open hearth steelmaking.

Of course, blast furnace gas alone is not enough for open hearth steelmaking. For this reason, Zhang Qingfeng plans to merge the coking workshop. The coke oven gas produced by coking together with blast furnace gas should be barely enough for open hearth steelmaking.

In Zhang Qingfeng's idea, when the blast furnace smelts molten iron, it will flow directly into the open hearth furnace without cooling. In this way, there is no need for a long heating and melting process in the open hearth furnace steelmaking, which can save a lot of fuel.

At the same time, the gas produced by blast furnace ironmaking and coking can be supplied to open hearth furnace steelmaking.

In this way, coking, ironmaking, and steelmaking can be carried out at the same time, and steel can be smelted continuously without stopping.

Of course, the speed of open hearth furnace steelmaking is definitely not as fast as that of blast furnace ironmaking, and there will be a large amount of pig iron that will not be smelted into steel in time.

Therefore, these pig irons will be used as folk iron to make ironware such as iron pots and agricultural tools.

The steel produced by the open hearth furnace is used in industry or military.

During the first half month of coming to Junping, Zhang Qingfeng was drawing design drawings and preparing the raw materials for building the furnace at the same time.

In addition to refractory bricks, cement, etc., the raw materials for building a furnace include iron pipes, water storage tanks, and the construction and preparation of various tools.

After half a month, Zhang Qingfeng designed the construction drawings of the coke oven, blast furnace, and peace furnace, and then began to let the craftsmen build according to the construction drawings.

The first is the coke oven. After the coke oven is built, it will start coking immediately as a fuel reserve for ironmaking.

Then came the blast furnace, and finally the open hearth.

In order to build this steelmaking plant, Zhang Qingfeng used tens of thousands of workers and more than one billion money and materials this time.

Two months later, the coking ovens began to produce coking coal. Thirty coking ovens can produce more than 60 tons of coking coal every day.

Four months later, the blast furnace began to make iron. The volume of the blast furnace was 7000 cubic meters, and it could produce about [-] tons of iron per day, about [-] tons of iron per month, and about [-] tons of iron per year.

This is still due to the insufficient supply of raw materials for ironmaking. Otherwise, Zhang Qingfeng could have built a blast furnace with a volume of [-] square meters, and the daily output of hundreds of tons of pig iron would not be a problem.

Six months after Zhang Qingfeng came to Junping, the open hearth furnace was finally built and put into use.

There are two open hearth furnaces in total. According to the design, each open hearth furnace can smelt 1000 tons of steel, and the furnace is released every three or four days. The two open hearth furnaces can theoretically smelt [-] tons of steel per month, and the annual output is about [-] tons.

More than 1000 tons, equivalent to the national steel output in the heyday of Tang Dynasty.

In September 208 A.D., all the blast furnaces and flat furnaces of the steelworks were finally put into use.

After the steelmaking plant built by Zhang Qingfeng was put into use, all the steelmaking workshops that used the steel filling method stopped production.

A steelmaking plant with an annual output of [-] tons of steel has tens of thousands of workers surrounding the entire steel plant.

Almost tens of thousands of them work in mines, and coal mines and iron mines require the most manpower.

Then there are thousands of people in transportation, and there are countless vehicles and boats as transportation tools.

There are also more than 5000 workers in the iron and steel plant. Just crushing ore, washing coal, coking, etc. requires a lot of manpower.

Fortunately, the wages of workers in this era are very low, and some food and cloth and a small amount of money are distributed as wages a month.

…………

"Teacher, there is too much steel being smelted here, and it can't be used up. What should I do?"

With the operation of the steel plant, Yang Shen became sad.

After the steel plant was in operation, because the steel plant produced too much, it was impossible to use up so much steel, and a large amount of steel was backlogged in the warehouse.

Even the price of pig iron has been reduced to [-] cents a catty, but after a short period of panic buying.After that, no one bought iron anymore, because the iron used by folks near Youzhou was already saturated.

If you want to sell steel, unless you sell it to all parts of the country, this is not a short-term success.

In the past, there was not enough steel, but now there is too much steel production, which makes everyone dumbfounded.

Every day a steel plant operates, tens of thousands of workers have to be paid wages. If this continues, the steel plant will go bankrupt sooner or later.

(End of this chapter)