"Well, have you learned how to build thoroughly?" Qin Forget changed the subject.

"I built it with my own hands, so naturally." Jin Xu rolled his eyes, looking as a matter of course.

"And how many people here will build?" Qin Forget picked up the drawings on the table and received them in his arms, and then asked.

"You also said, it seems very simple, and almost everyone involved in this will make it."

"Okay." Qin Forget nodded, "Xue Feiyun, register all the people here and send them to Dong Tianxiang, telling him that these people can't leave the field of vision of Mingyue Hall for a moment. In addition, Jin Xu, if there are drawings and the like in the future, they will be handed over to Mingyuetang, and they must be sealed every time they are finished, and they must be registered. When you look at it, you are not allowed to leave the sight of Mingyue Hall, let alone copy it. ”

Seeing Jin Xu's slightly dissatisfied look, Qin Forget patted his arm, "I know you will feel troublesome, but the stakes are high, once there is a leak, I believe you, others may not believe you." When the time comes, you, me, and your father will not look good, and I will protect you. ”

Qin Wangdu said so, knowing that what he said made sense, Jin Xu could only agree sullenly.

While the two were talking, Vasily's side was also ready to add ingredients, and the two strong men were one by one, desperately squeezing air into the stove. The flaming red flames rushed out from the mouth of the stove, even if it was more than a zhang away, Qin Wang felt that the heat wave emitted from the stove went straight to the door.

It didn't take long for Qin Forget to hear the sound of a raging fire burning inside the blast furnace, and he could also hear the sound of firewood and iron ore bursting. A puff of black smoke also rose from the stove, but it was quickly blown away by the strong wind.

"Look at this smoke, if there is no wind, you can see it dozens of miles away, Jin Xu, when we have a few more furnaces like this, then the sky above our heads will be dark, which is equivalent to telling the world that we have the latest technology to make steel here, and the scale is still very large. Do you still think that my secrecy is irrelevant? Qin Forget asked, staring at the black smoke above his head.

He was also very worried, such black smoke, it is impossible to hide the matter of the Akagi Iron Mine, I am afraid that it will be another round of tragic gladiatorial battles with various forces.

Jin Xu was speechless, he was just a technical maniac, and he really didn't know what to do about these things. Qin Forget also realized this, shook his head with a wry smile, and told him what are you doing here, playing the piano to the cow.

Sure enough, Jin Xu's focus quickly turned back to the stove, and Qin Wang's worries didn't take anything to heart.

"This is just an experimental furnace, very small, as long as two people push the blow, it is enough, but it can produce more than 300 catties of wool steel at a time. Vasily said that if you want to produce thousands or even thousands of catties of wool steel at a time, the furnace must be five zhang high, and it must be thirty steps thick. At that time, it will not be possible to use manpower to remove the wind, and it will have to be drained with water. Jin Xu explained while accompanying Qin Forget to see the steelmaking.

Qin forgot to know it

This kind of thing, he's seen it in books. This kind of whirl, in the Han Dynasty made further improvements, made of leather bellows and wooden frames, there are air inlets and exhaust outlets, several hoops are connected together called pai or pai, it can increase the air intake, enhance the burning firepower, and quickly raise the furnace temperature to the temperature required for ironmaking.

At the earliest, it was driven by human and animal power. According to historical records, iron smelting at that time required hundreds of horses to pull large rows of wind. However, neither manpower nor animal power can meet the needs of the growing ironmaking, and the ironmaking industry calls for the emergence of more powerful blowers, so more powerful hydraulic blowers and water drains come into being.

"According to your calculations, is the flow of water on the Chaobai River enough?" Qin Forget asked the crucial question.

"For such a large furnace, there are at least four water rows, each of which is composed of six huge rafts, and the water flow of the Chaobai River is barely enough in summer, and it is absolutely not good in winter, first, the water flow is too small, and second, the water surface will freeze." Jin Xu calculated in his heart and gave the answer.

"In the summer, when the water flow is high, I will forge hard, and I can avoid this problem by accumulating enough for a winter." Due to the limitations of natural conditions, no one can change it, and Qin Wang can only come up with this method.

"There is another problem, now our furnace is small, and it is good for people to carry ore on their backs and climb up to the blast furnace to add it. When the furnace is five feet high, and it depends on manpower, you can't always have people add ore and other materials to it when making iron, because it's too dangerous. But if you wait for someone to fill up and then open the furnace, it will take at least three or four days to fill such a big guy, which is too slow. This issue must be addressed. Jin Xu mentioned another problem.

"Yes, I noticed this problem at the beginning, you see if you can do this, there is a kind of siege cart in the army, it is very tall, and there is a platform on it, and there is space to store a lot of ore and fuel. We built one on top of each stove, stored the things we needed in advance, and added them condescendingly with a shovel before opening the furnace. Qin Forget quickly came up with a solution.

"It's not appropriate." Jin Xu rejected the idea after thinking about it for a while, "Although this method may be faster, it is just to prepare the materials in advance." It also requires manpower to move the material upwards. Besides, one has to wait for the furnace to cool down when the material is shoveled, and it takes a long time for the temperature of more than 1,000 degrees to cool down. ”

Qin Forget was a little depressed, "Then what do you say?" ”

"I don't know." Jin Xu said with a wry smile, "Fortunately, the road leading from the iron mine to the outside is only one-fifth completed, and there is no need for a large furnace, and there will be no problems in the small furnace for the time being, and I will always find a way in the future, and there will always be a day to solve it." Did the general see those conveyor belts or something? As long as you can get it moving, you can solve it. ”

"Conveyor belt?" Qin Forget did see several long shelves lying not far away, with a layer of leather on them and two round wheels at the two ends.

"Is this conveyor belt any good?" I saw Jin Xu do it again

What a new thing, Qin Forget hurriedly asked.

"It doesn't work." Jin Xu shook his head. "Five zhang, it's too long, even if it's done, it's hard to really rotate, and the wooden structure we use is difficult to bear too much weight, and after several tests, it either collapses as soon as it is erected, or it can't send ore and fuel up."

"I trust you, take your time. Have more questions? "Qin Wu is really worried that Jin Xu will say some big problems again, then he will be happy for nothing this time.

"That's all we know now, this kind of blast furnace has only been in Vasily's hometown for less than ten years, and no one knows if there will be any problems, or if there is room for improvement. Anyway, if you can use it now, let's use it first. Fortunately, Jin Xu didn't say anything else.

As soon as he finished speaking, the furnace of steel was smelted.

Vasily walked to the taphole, lifted the piece of iron blocking the tap with an iron hook, and a stream of golden molten iron soon flowed out of the taphole, filling the ground with more than a dozen square molds made of sand and gravel.

Qin Forget endured the heat wave and walked over, these square molds were one inch square, two feet long, and weighed more than twenty catties after being filled with molten iron, a total of fifteen such molds, and a furnace of iron did have more than three hundred catties. Qin forgot to calculate the time in his heart, and after burning this furnace, it would only take more than two hours to count the artificial fillers, and the efficiency was still considerable.

"Vasily, well done!" Qin Wei patted Vasily's arm happily, "I know that you like gold and don't like silver, according to the prior agreement, thirty taels of gold is not a lot." Qin Forget took two small packages from Jin Wuna and handed one to Vasily.

Vasily took it, opened it and saw that it was indeed yellow-orange-orange gold, and was excited, "Honorable lord, Vasily is willing to be loyal to you for the rest of his life." He was very good at kneeling down on one knee to show his loyalty to Qin Wang.

He also didn't expect Qin Forget to do what he said, as long as he made a blast furnace and a hydraulic forging press, he would be rewarded with thirty taels of gold for each. In their homeland, where their monthly wages were only one or two gold coins, he fell in love with the rich East.

"You kid is the gold loyal to the general, right?" Qin Forget smiled and kicked Vasily, "Mikhail, don't look envious, I heard that you have contributed a lot this time, this is yours, and it is also thirty taels." ”

Mikhail couldn't understand Chinese, and after Vasily's translation, he realized that he had also been rewarded with thirty taels of gold, and immediately knelt at Qin Wang's feet excitedly and kissed the surface of his feet, which startled Qin Wang.

"Two, I know that this blast furnace is just emerging even in your country, and I think there must be room for improvement. The two of you also have to help Jin Xu improve it a lot and make him bigger and better. Rest assured, you won't be allowed to work in vain, and a good idea that can be used will be rewarded with five taels of gold. Stopping the two of them from dancing, Qin Forget said to the two of them.

And there's money to be made? How can two people not agree? They all nodded in agreement.