Chapter 795 Duan Hongxuan introduced converter steelmaking to Factory Director Yang and others
In the following days, Duan Hongxuan went step by step, going to the steel rolling mill for one or two days every week, going to the Second Hospital for outpatient service on Wednesdays, and spending the rest of the time leisurely at home, which made He Yuyu and Haitang envious!
The two of them worked hard every day and had to go to school, but Duan Hongxuan could live such a carefree life. The two of them went home angrily and acted coquettishly with Duan Hongxuan. Duan Hongxuan had no choice but to comfort and coax him, and even cooked something by himself from time to time.
It was delicious, and this allowed the two resentful little beauties to regain some mental balance.
The time soon came to March, and the weather gradually warmed up. Duan Hongxuan was very restless and planned to do something good again!
That day was a Monday. Duan Hongxuan came to the steel rolling mill early in the morning. Instead of going to the machine tool workshop, he went directly to the technical department. He called Section Chief Zhao and Worker Huang and Li, and they went to Director Yang's office together.
"Director Yang, Director Lin!"
"Hey? Hongxuan is here! Uh, Section Chief Zhao, Gong Huang and Gong Li, what are you...?"
Director Yang looked at the people coming in and was stunned for a moment.
Section Chief Zhao smiled bitterly and said: "Director, don't ask us, we don't know what's going on!
Not long after I started working, Master Xiao Duan came to the technical department. He only said that something happened, but did not tell us what the specific matter was, so he pulled us over!
We are just as confused as you right now, so you should ask Master Xiao Duan!"
When Director Yang heard this, he couldn't sit still. He stood up and left his desk, calling everyone: "Come, come, come. Since you are here, sit down first, don't stand. If you have anything to do, sit down and tell us!"
Director Lin, please make some tea!"
After Director Yang invited everyone to sit down, he asked Duan Hongxuan: "Hongxuan, you brought several major leaders of the technical department to me this early in the morning. What's the big deal?"
The three people from the technical department next to him also looked at Duan Hongxuan curiously, and Duan Hongxuan said, "That's right, Director Yang, do you still remember that I once told you about the steel-making furnace in the rolling mill?"
"Steel-making furnace?" Director Yang frowned and recalled carefully, "I seem to have such an impression, but I can't remember exactly what it was!
What, you still want to make a fuss about this?"
When Huang Gong heard this, he also frowned and asked Duan Hongxuan worriedly: "Master Duan, is there something wrong with the steel-making furnace in the factory?"
Duan Hongxuan smiled and said: "There are currently no problems with the steel-making furnaces in the steel rolling mill! But all the steel-making furnaces used in the steel rolling mill are open-hearth, right?"
Section Chief Zhao nodded, looked at Duan Hongxuan curiously, and replied: "Yes, it's an open furnace!"
At this time, Director Lin came over with tea and poured it for everyone. Everyone thanked Director Lin, and Director Lin said with a smile: "This is the first time I have seen Hongxuan take the initiative to come to the factory director's office to find Yang early in the morning.
The director of the factory, and he also brought people from the technical department with him. Looking at this posture, there must be something big going on with Hongxuan, right?
I’ll listen too!”
Duan Hongxuan nodded, and then continued: "Our rolling mill has always used open-hearth steelmaking, which is also the mainstream steelmaking method in all steelmaking plants in our country!
However, some of the world's largest steel-producing countries have gradually begun to adopt converter steelmaking and are slowly phasing out open-hearth steelmaking!"
"Oh? Converter steelmaking?" Li Gong couldn't help but said in surprise when he heard this. Director Yang looked at Li Gong with the same surprise, "Li Gong, what, do you know what Hongxuan is talking about? Converter steelmaking
?”
Li Gong nodded: "I have actually heard of this. It was during the Chinese New Year, and I heard it from an old classmate of mine.
An old classmate of mine is currently in the research institute of Shougang, and they are currently studying this converter steelmaking method. I heard from him that converter steelmaking does have many advantages over the open-hearth steelmaking we currently use, so their institute is currently studying it.
I don’t know the specifics!”
After Li Gong introduced it to everyone, everyone here immediately became interested. After all, this is a steel rolling mill, and steelmaking is the most important job of their factory. Director Yang suddenly looked at Duan Hongxuan with bright eyes and said: "Hongxuan
, come, tell me what is going on with this converter!"
Section Chief Zhao and the others also nodded and looked at Duan Hongxuan. Duan Hongxuan said: "Okay, I will introduce this converter to you!
Converter, as the name suggests, is a steel-making furnace that rotates during steelmaking. I will give you detailed information later. Here I mainly want to talk about the advantages of converter over open-hearth furnace!
Our open-hearth furnace takes about six to eight hours to smelt a furnace of steel, but if we use a converter instead, guess how long it will take to smelt a furnace of steel?"
Li Gongdao: "Since everyone is studying the converter now, and you raised this matter so solemnly, it must take less time to make steel in the converter than in the open-hearth furnace. I guess it takes about three or four hours to make one furnace of steel in the converter.
Bar!"
Duan Hongxuan smiled and said: "Gong Li is still not bold enough. Strictly speaking, the time it takes to make a furnace of steel in a converter, including the preparation time, will not exceed an hour!"
"What! An hour?" Section Chief Zhao and the others were stunned. Huang Gong asked in shock: "Hongxuan, are you right? It takes one hour to make a furnace of steel?"
Duan Hongxuan smiled and nodded: "I said it right, and you heard it right, at most one hour. This still includes the preparation time. If you don't count the preparation work, from the cutting of materials to the coming out of the molten steel, strictly speaking
, no more than half an hour!”
"Hiss!" Everyone here is a figure of some importance in the steel rolling mill. Even Director Lin, the director of the office who is mainly responsible for logistics liaison and service work, knows what the steelmaking situation is like in the steel rolling mill, let alone other people.
Got it!
Now when I hear Duan Hongxuan say, just by changing the steel-making furnace, and replacing the open-hearth furnace with a converter, the steel-making time can be shortened several times. Everyone knows the great significance of this, and also understands what this means to the steel rolling mill.
!
Director Yang couldn't wait to say: "Hongxuan, if what you said is true, then our factory must also try to research this converter. If this can be researched, it will be very important to the steel rolling mill!"
This chapter is not over yet, please click on the next page to continue reading! Duan Hongxuan smiled and said: "Director Yang, don't worry, converter steelmaking has many advantages, it is not just a matter of saving time!"
"What other advantages are there? Hurry up and tell me!" Director Yang urged.
"Okay! I just mentioned the issue of time, and another issue is the utilization rate of heat energy. The converter is also much better than the open-hearth furnace!"
At this time, Director Lin asked: "Are there any benefits to this high thermal energy utilization rate?"
Without waiting for Duan Hongxuan to answer, Section Chief Zhao explained: "The thermal energy utilization rate is high. The most popular explanation is to save fuel and coal!"
"Oh!" Director Lin nodded, "In this way, wouldn't the cost of practicing a furnace of steel be reduced?"
"Yes, that's right!" Section Chief Zhao nodded, and then said to Duan Hongxuan: "Master Duan, you continue!"
"Okay! In addition to time and heat energy utilization, there is another issue of investment!
Let’s give a simple example!
Let’s take our steel rolling mill. If the steel rolling mill wants to increase the current steel production to 12 million tons per year, if it uses a converter, it only needs to build six converters of about 250 tons to 300 tons!
But if open-hearth furnaces are used, it is estimated that 30 to 40 large-scale 500-ton open-hearth furnaces need to be built. The investment alone is several times that of a converter!
And the most important thing is that converter steelmaking can not only make ordinary steel, but also low carbon steel!
And since converter steelmaking basically uses oxygen blowing to make steel, the quality of the steel produced is better, there are less harmful gases such as nitrogen and hydrogen in the steel, and it is easier to control the content of carbon and other elements in the steel.
The quality of steel is more controllable, and more types of steel can be smelted!
To sum up, the first reason for converter steelmaking is low infrastructure investment and production costs.
Second, the converter steelmaking production speed is fast and the production efficiency is high!
Third, the quality of steel produced by converter steelmaking is better, and more types of steel can be smelted!
What do you guys think, are you interested in doing converter steelmaking in the steel rolling mill?"
With Duan Hongxuan's introduction and comparison, everyone suddenly became excited. Section Chief Zhao said excitedly: "What else is there to say? Since it has so many advantages, our rolling mill must build this converter!
Factory director!"
After saying that, Section Chief Zhao looked at Director Yang eagerly. Director Yang also looked excited, but he was the director after all. Although he was excited, Director Yang still had to be calm about such a big matter.
Son!
Director Yang picked up the tea cup and took a sip of tea, then took a few deep breaths, looked at Duan Hongxuan and said: "Hongxuan, listening to what you said, this converter steelmaking has great advantages. If possible, we
Of course the steel rolling mill is willing to engage in the converter steelmaking, but I am afraid that no one in our factory understands what the converter steelmaking is. If this is the case, we will not be able to operate the converter even if we want to. No one understands
ah!"
Duan Hongxuan said speechlessly: "Uncle Yang, are you trying to be mean here, or are you just teasing me? Since I can call people from the technical department to come to your office to talk about the converter, is it possible that I have nothing to do?"
Director Yang then chuckled: "Hey, hey, you are putting on such a big show. According to Uncle Yang's understanding of you, you must be well prepared, right?"
Duan Hongxuan rolled his eyes angrily and didn't bother to talk at all. He reached out to pick up the teacup and drank tea by himself.
Factory Director Yang was not angry either. He smiled and said to Duan Hongxuan: "You can do it, kid. Uncle Yang is not so kind to you in vain. He always thinks of our rolling mill when good things happen!
But do you really know how to make steel?"
Duan Hongxuan was too lazy to pay attention to this old guy who was trying to take advantage of him all day long. He reached out and took out a thick stack of information from his bag and threw it on the coffee table!
When Section Chief Zhao saw it, he quickly grabbed it. Huang Gong and Li Gong also immediately came over, and the three of them began to look through the information Duan Hongxuan had brought out!
After Section Chief Zhao and the others looked through it for a while, Director Yang asked impatiently: "Old Zhao, how are you doing? What does this information say?"
Section Chief Zhao said excitedly: "Director, this information is so important. It is simply a basic principle and process flow of converter steelmaking, and it even includes the design drawing of the converter!
I haven't studied it carefully yet, I just took a rough look.
After just a brief look at it, I am almost certain that with this information, as long as our factory can study this information thoroughly, we can completely build a converter by ourselves!"
"Really?" Director Yang was no longer reserved now and stared at Section Chief Zhao with a red face, "Old Zhao, are you reading that right? With this information, can our factory really build a converter by itself? You
affim?"
"Absolutely!" Section Chief Zhao replied.
"Almost!" Factory Director Yang was a little dissatisfied with Section Chief Zhao's answer, "What do you mean almost? How much different is it?
Old Zhao, this steelmaking is not a trivial matter. If it works, it works, and if it doesn’t, it doesn’t work. You are a technician, so what is going on?"
Section Chief Zhao looked aggrieved: "Director, I just flipped through such a thick stack of information and didn't have time to study it carefully. How do you want me to answer it?"
At this time, Huang Gong said: "Director, based on this information, we can basically conclude that if we can thoroughly understand this information, we can completely build the converter ourselves. Specifically, we have to go back and do it carefully.
Please study this information carefully!"
Li Gong also nodded and said: "Director, yes, with this information, basically any steelmaking factory can build a converter on its own!
This information is very detailed. The principles of the converter, the process and work flow of converter steelmaking, and the design drawings of the converter are all included in this information, and it is also very detailed!
This information is simply too valuable!
Master Xiao Duan, where did you get this information?"
Section Chief Zhao lowered his head and looked at the information again, then looked up at Duan Hongxuan and said: "Master Duan, why do I think this information is handwritten, and this picture is also purely hand-drawn. Couldn't you have written this information yourself?"
Duan Hongxuan nodded: "I wrote it myself, and this is the only copy. You must keep it safe and don't lose it!"
"You wrote it yourself?" Li Gong said in surprise: "But where did you know the content?"
Duan Hongxuan smiled and said: "I checked some information, based on the general introduction of converter steelmaking in some relevant information, and then thought about it myself, I summarized this information!"
"..."
Everyone didn't know what to say when they heard this. Director Yang couldn't help but said suspiciously: "Hongxuan, steelmaking is not a trivial matter. You just rely on the situation of converter steelmaking in foreign countries introduced in some magazine materials, and then
After thinking about it yourself, you came up with such a piece of information?
This is a bit too outrageous! Is it reliable that you have created this information like this?"
Duan Hongxuan said with disdain to Director Yang: "Uncle Yang, this converter steelmaking was developed by others from scratch, so why can't I give a general introduction to the converter from the data, and then roughly restore the basics of converter steelmaking?"
principle!
Don’t forget where the machine tools produced in the steel rolling mill come from!”
Then Duan Hongxuan stretched out his right index finger and tapped his head, "Uncle Yang, do you see, this thing is for thinking, not for decoration!
Don't use your brain to measure a genius' brain!
Sometimes you have to admit that the difference between this person and humans is really ridiculous, even bigger than the difference between humans and animals!"
When Director Yang heard this, he immediately laughed and scolded: "You kid is really making fun of me, you don't take me as the director seriously, do you?
Okay, leave the information and let Section Chief Zhao and the others take it back and study it carefully. You can get out of here and come to my office early in the morning to trouble me. I will get angry just looking at you!"
Duan Hongxuan chuckled: "Okay, I've told you the benefits of the converter, and I've given you the information. As for whether you want to do it or not, that's your business. I'll go back and wait for notification. Uncle Yang, please let me know after you think about it!
Hehe, if you drive me away now, I’ll have to think about it later if I ask you to invite me back in a sedan chair!”
