Foreman Li immediately led several workers to carry the prepared fireproof mud and quickly sealed the slag outlet. [Full text reading] Ji Wusheng pulled the whistle fiercely. The sharp whistle reminded the workers around the blast furnace that something was about to be discharged from the furnace. Everyone should pay attention to safety and avoid it.
Several workers carried iron drills and began to stir the bottom of the furnace. As they stirred together, like fireworks, many burning sparks shot out from the tap hole and danced in the air. This is the firewood ashes from the bottom of the furnace being blown out.
Ji Wusheng instructs the workers to stir continuously so that the ashes can be continuously discharged. The purpose of discharging the ash is to prevent the ash and slag from mixing together and causing bottoming.
When no more ash is blown out, the workers are instructed to close the taphole. Then start sending full wind. The blower whirred, and the temperature in the workshop was getting higher and higher. Ji Wusheng began to feel sweat dripping from his forehead - the thick work clothes hindered the dissipation of heat, but he remained motionless in front of the furnace. Watching. From time to time, I would look at my watch and count the time.
"Okay." Ji Wusheng thought that the heat was almost done and informed Engineer Li, "From now on, you must always pay attention to the position of the furnace line. When the coke layer drops to the specified position, gradually add empty coke. Add some slag - I have taught you how much to add every time. If you forget, just check the process manual."
"I haven't forgotten." Engineer Li recited a series of data smoothly.
"Okay, from now on, don't add ore until the morning shift comes to take over tomorrow morning. Wait until I come and then start adding. Coke must be added continuously to maintain the furnace temperature."
The second baking time takes about 24 hours. When the temperature of the entire blast furnace reaches a sufficient temperature, a small amount of iron ore can be added in small batches. All this is to ensure the temperature of the furnace - in blast furnace smelting, the furnace temperature Maintenance is an important issue. Insufficient furnace temperature will not only affect the iron tap rate, but also cause many blast furnace failures, which will eventually require the furnace to be shut down for overhaul.
Ji Wusheng went back and quickly took the time to get some sleep. When I woke up, it was exactly at night, and the mid-shift worker had already taken over. He checked the handover records of the two shifts, and then used a steel drill to drill into the probe hole to observe the combustion status of the coke and the temperature of the furnace wall.
"Continue to add coke in small batches and provide air." Ji Wusheng felt that the heat was still a little low, so he decided to start adding ore until the morning of the 7th.
At noon on February 7, following Ji Wusheng's order, the first batch of iron ore powder and slag-making materials were finally put into the blast furnace, and formal pig iron smelting began. Compared with the workers, Ji Wusheng was more nervous - they had followed the technical information and their own experience in order to do it, but could this large-scale counterfeit product, which itself was piled up with counterfeit goods, withstand the test and operate normally? No one knows anymore. Ji Wusheng knows that the success or failure of the blast furnace determines how quickly one can climb the technology tree.
On February 8, the blast furnace finally released the first batch of molten iron. The main ditch was made of sand and gravel and filled with yellow sand. The casting bed is a cast iron mold. After the first batch of pig iron ingots came out, Ji Wusheng ordered someone to take the iron bricks in a car and send them to Bairen's chemical laboratory to test the ingredients.
The analyzed results were quickly fed back to the steel plant via wired telegram. The quality of the pig iron is very good, and the proportion of phosphorus and sulfur that affect the quality of the pig iron is extremely low, far exceeding the various scrap iron and pig iron they get from the mainland. The combination of high-quality iron ore and modern blast furnace smelting creates such high-quality pig iron.
Ji Wusheng's face lit up: "That's great. With high-quality pig iron, it will be easier to make good steel."
After the molten iron has been produced, the first slag discharge begins. The steel slag is discharged into a large pool. The water in the pool is river water sent from the water supply plant and subjected to simple sedimentation treatment. Cooled steel slag is the material from which cement is made. The cooling water heated by the steel slag is piped out to utilize the waste heat.
"From now on, iron will be produced every two hours and slag will be produced every 15 minutes," Ji Wusheng ordered. He collected a sample of the steel slag that was cooled for the first time and gave it to a staff member to quickly send to Bairen for composition analysis. In order to adjust the composition of slagging materials at any time.
"Without a laboratory, people have to run to death." Ji Wusheng sighed as he watched the excited clerk trotting out with the sample jar. The only external transportation on Ma Niao's 6 is highway, and both walking and cycling are too slow. In order to deliver items quickly, the Planning Institute allocated a motorcycle to Ma Niao Industrial Zone. When items need to be delivered urgently, they are transported by motorcycles.
Soon the composition of the slag was analyzed and the steel plant was photographed by wire telegraph. The ingredients were roughly within the range of Ji Wusheng's predictions - the formula and numbers of the ingredients were accurately calculated by him and were a summary of more than a hundred years of experience in modern blast furnace ironmaking. Now Ji Wusheng is confident enough that the blast furnace can tap iron stably in the long term. But he still didn't dare to relax. He was in the workshop 24 hours a day. When he felt sleepy, he would take a nap in the office, and then get up to check on the condition of the furnace. He didn't dare to relax at all for his naturalized migrant workers. After all, these people became... The longest period for a real industrial worker is only one and a half years. Bad habits and thinking still dominate the pattern. There are a lot of new workers among the blast furnace workers, and there are few veteran workers. If you don't keep an eye on them, it's more likely that something will happen to you.
Under his day and night monitoring, the blast furnace was operating completely normally after 48 hours. Ji Wusheng converted based on the input figures of iron ore and coke, and found that the blast furnace conversion rate was about 0.79 - this level is not high, and modern blast furnaces can generally reach a level of 1. However, he is not worried. As long as he continues to improve the feed ratio and slag-making process, he is confident that the conversion rate will reach about 0.90. Even at the o.79 level, the daily pig iron production is far more than 5o tons. Blast furnace capacity is much higher than expected.
In order to celebrate the official commissioning of the No. 1 Blast Furnace, the Senate ordered additional rations for the students at Yerba Cao Cao, including the students' favorite fruit candies. Many years later, the "Children of Green Grass" who have grown into the backbone of the empire will often recall the good days of receiving "special rations" from time to time. Whenever there is an increase in rations, students will stand up and cheer "Long Live" in classrooms, dormitories and playgrounds - everyone knows that this is a new step forward for the empire under the correct, glorious and great leadership of the Senate.
At the same time, on February 9, a set of red headlines were published on both the internal and external pages of the "Lingao Times". Needless to say, the naturalized people, as well as the natives who have had a lot of contact with the elders, also know that a red headline in the newspaper means that something big has happened to the elders - most of it is a happy event. The members of the County Counseling Bureau cannot understand the "Newspeak" articles in the newspapers, but the County Counseling Bureau has a full-time liaison "girl", and she is usually responsible for explaining every time the County Counseling Bureau meets. Contents of newspapers and documents. After everyone heard Tang Tang say that this was a big furnace that could produce more than 100,000 kilograms of iron, although they didn't know what the specific meaning was, they still understood from the seriousness of the elders that this matter was of great significance, and they immediately became very interested. I wrote a "congratulatory letter" in the name of the county advisory bureau, wrote it on big red paper and sent it to Dongmen City. Zhang Youfu also asked his men to quickly buy firecrackers and set them off at the door of the county consultation bureau.
Wu De closed the window - the firecrackers outside were very noisy and interfered with the executive committee's regular work meeting.
This executive working meeting was held at his request, and the topic was to solve the thermal coal supply problem. Of course, the so-called thermal coal supply problem is actually Hongji’s problem.
"...Well, the situation of coal supply is already here." Wu De said, "I think everyone understands the current situation. The channels for coal have not increased, but the number of users has increased a lot. If we can't solve it once and for all, With the coal issue, I’m afraid it will be a problem to maintain the operation of the industrial system.”
As if to verify his statement, a warning whistle was sounded outside to remind the elders present how many boilers were burning in Lingao and how many steam engines were working tirelessly to support the industrialization of Lingao. A steady stream of powerful motivation. There are still many boilers in Sanya, Hong Kong, and Leizhou waiting for high-quality coal to fill their huge appetites.
"It is unrealistic to expect Guo Yi to restore the coal transportation channel for us immediately - besides, the Pearl River Delta is not close to Lingao. The most he can do is solve Hong Kong's thermal coal problem immediately. The Zhanjiang coal shipped from Leizhou is now our thermal coal The main force, this is currently the most stable supply of thermal coal."
He did not include the Jiazi Coal Mine in Qiongshan and the Nanbao Coal Mine in Lingao into the statistical caliber of thermal coal. The former is used exclusively for coking by the Ministry of Chemical Industry and the Ministry of Metallurgy, while the latter has too low calorific value and can only be used as fertilizer.
"Are the coal mines in Danzhou valuable? Do you remember where there are oil sands mines?"
"Yes, there is Changpo Coal Mine in Danzhou, which is one of the larger coal mines in Hainan Island." Bai Guoshi, who came to the meeting on behalf of the exploration department, said, "But it is buried deep and requires a large initial investment. The quality of the coal is not good. Ideal - Changpo actually belongs to the same mining belt as Nanbao's coal mine."
As for Danzhou oil ore sands, they are buried deep and are more troublesome to mine. In addition, oil refining equipment must be installed after extraction. The current demand for fuel oil is not large, so increasing this investment outweighs the gain.
"Ade, we understand what you mean," Ma Qianxu said. "We should directly intervene to open Hongji, instead of relying on piecemeal purchases from Vietnam trading companies like now."
Wu De nodded: "Yes, that's what I mean. Now is the time to directly intervene in Hongji." ..
