Siheyuan starts from a better life

Chapter 315, Small Blast Furnace
Qin Daniu wanted to say something, but was stopped by Qin Fengshou.

Then Qin Fengshou said in a loud voice: "Leader! We finally rushed over. Our village is too far away. We are late. I'm sorry, I'm sorry!"

Just as Jiang Yan was about to say something, He Yuzhu pulled him away and gave him a wink. When he turned his head, he saw the commune staff walking towards them.

"Leader, do you know the people in Qinjiazhuang?" The commune staff walked up to Jiang Yan and the others and asked in confusion.

"I don't know, how would I know them? Aren't they the leaders of the commune?" Qin Fengshou revealed a simple and honest smile when he spoke.

"They are big leaders from the Sijiucheng Research Institute. The research institute knows it! They are all great scientists. They come to help us make steel. I don't know how to say hello."

Hearing that they didn't know each other, the commune staff who rushed over breathed a sigh of relief, and reprimanded them.

"Okay, Lao Qin, you are the last every time, you go to your place quickly, and see that Hongjia Village is just like you, he has already arrived."

Hearing the reprimand from the commune staff, Qin Fengshou didn't say anything. After winking at He Yuzhu and the others, he hurriedly took the people from Qin's Village to their residence in the distance.

Because I came too late, I could only go to work in the fringe area farthest from the commune.

"What's going on with them." Jiang Yan couldn't help asking the commune staff as he watched them leave.

Seeing the puzzled faces of Jiang Yan and the others, the commune staff explained.

This Qin family village is located near the mountains and forests. Although there is a lot of land, the fertility of the land is limited, the harvest is not good, and life is relatively difficult. He dare not mention the word "poor".

They are recognized as "backward elements" by the commune, and even people in Hongjia Village not far from them look down on them.

Jiang Yan nodded secretly after hearing this, it turned out that he came to Qin's Village to hide his clumsiness.

"Leader, why are you here? Our Director Ma is going crazy looking for you." After Jiang Yan took He Yuzhu and the others to basically turn every blast furnace, they just sat there to rest for a while. He ran over sweating profusely.

"Where are they?" Jiang Yan asked, throwing away the cigarette in his hand.

"In the conference room, I'll take you there directly."

Jiang Yan nodded, without saying a word, stood up and followed the commune staff into the conference room.

"Mr. Jiang, is there a problem with our construction of these blast furnaces?"

Just as Jiang Yan sat down, a fat man in a tunic asked.

Hearing his address, Jiang Yan was taken aback, looked at him with some doubts and asked, "You know me."

"Mr. Jiang, I am Zhang Yuanchao, the fourth-level worker in our steel rolling mill. The leader sent me to help the peasant brothers make steel."

Hearing this, Jiang Yan glanced at the man from the rolling mill sitting there and his face darkened.

"Look at what you built. Tell me how many qualified ones you have! Can this make steel?"

Hearing Jiang Yan's words, Zhang Yuanchao lowered his head and argued in a low voice: "Mr. Jiang, I can't do anything about it. The building materials are limited, so I can only think of a temporary solution."

Then he began to explain the source of all the materials, which also opened Jiang Yan's eyes.

For example, for the lining of small blast furnaces, fibers like fine hemp silk should be mixed into the mud, but the demand is so large, where can we get hemp silk?

When fine linen was not available, they used human hair instead.There is no refractory soil, so they smashed the water tanks at home so that they have refractory soil.

Without refractory bricks, they thought of building with blue bricks, red bricks, or even earth bricks.It is only with such materials that hundreds of small blast furnaces, large and small, have been built, and the quality can be imagined.

Sitting there, Ma Youcai also understood Jiang Yan's conversation, and asked Jiang Yan in a low voice: "Boss Jiang, you said that if we can't produce steel, this small blast furnace is unqualified."

Hearing Ma Youcai's question, Jiang Yan thought for a while, and said directly: "It's not just about the small blast furnace, the temperature is also the most important. Without a high temperature, you can't make steel."

"Then what do we need to do?" Ma Youcai continued to ask.

"Overthrow all unqualified blast furnaces, rebuild them, find a place to burn carbon, and make steel." Jiang Yan said firmly.

"If it's all postponed to the reopening, what should I do if it's a mistake in steel training, and whoever can't complete the task of the superior will not be able to pay the responsibility." A commune worker sitting next to Ma Youcai said.

"I directly proposed a solution to the problem. Whether you do it or not is up to you. If I will help you complete it, if I don't do it, I will turn around and leave now."

He wants to take responsibility for himself without even thinking about it.

When the member who spoke just now heard Jiang Yan's words, he knew that Jiang Yan had seen clearly the little Jiujiu in his heart.

After their discussion, it was Ma Youcai who finally made the final decision, and finally dismantled the blast furnaces that had not been repaired, and continued steelmaking in these blast furnaces that were being smelted.

And Jiang Yan drew a blueprint of a new small blast furnace in front of them.

He was also shocked by Jiang Yan's hand.

The small blast furnace designed by Jiang Yan is different from the "soil blast furnace".

First of all, his furnace building method is different.The furnace shell is made of steel plate, built with refractory bricks inside, and the shape is vertical cylinder.

Secondly, the furnace is long.Generally, such a blast furnace can be continuously produced for several to ten years.

Jiang Yan also completely abandoned the mechanical parts inside in combination with the situation of laying down. From loading, air supply, slag discharge to tapping, the entire production process is all manual.

And it has a large volume.This furnace is the fifth furnace of the top soil blast furnace.

However, he has relatively high requirements for fuel. Except for a few conditional coke or coal, the vast majority of "soil blast furnaces" use charcoal; ironmaking blast furnaces must use good strength, low ash, low sulfur coke.

Jiang Yan not only brought up the construction of coking pools, but also brought up the "coal-free sintering" in the soil sintering mine invented in the 70s.

All Jiang Yan did was to improve the quality.

If you want to improve the quality, you need to work hard in three aspects: raw material management, furnace operation, and equipment maintenance, among which strengthening raw material management is particularly important.The central requirement for improving the quality of pig iron is to minimize the sulfur content in pig iron.Sulfur comes from coke and ore. To eliminate it, the raw material should be kept at first, and it should be restricted from entering the furnace.

Elimination of sulfur from raw materials to a minimum will facilitate desulfurization in smelting.Desulfurization before smelting, the contradiction is single, the operation is simple, and the result is twice the result with half the effort; bringing a large amount of sulfur into the furnace for treatment will cause a series of changes in the slagging ingredients in the furnace, which is much more complicated than desulfurization before smelting.

The basic requirement of raw material management is "coarse grains and fine grains", "fine grains and fine grains", so that blast furnaces can eat fine grains and clinker.Do this, the improvement of the quality of pig iron has the most basic guarantee.But this requires a series of meticulous work.

Jiang Yan expressed his thoughts to the drawings in relatively plain words, and almost everyone who was working could understand Jiang Yan's design ideas.

"Leader Jiang, is the cost high?" Ma Youcai asked the most realistic question.

"It's not high. You can ask the rolling mill for help with the internal steel. I'll call Director Yang of the rolling mill later. We can build ten small blast furnaces like this."

"Okay, since Leader Jiang said so, we will do what you say. If nothing else, we will follow your requirements in terms of manpower. Everyone in our commune will follow your command."

(End of this chapter)