Yao Ran looked at the people who were coming not far away, and said to the three apprentices: "Burning is a basic learning, and it is also a very deep knowledge, we will try our best to increase the temperature of the flame in the future, to reach the temperature we need, to deal with the things we need to deal with at a higher temperature." Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo”

"Alright, let's move on to the waterwheel!" Yao Ran ended the discussion just now, and pointed his finger at the simple drawings on the stone slab.

The three apprentices were still waiting for Yao Ran to continue, but Yao Ran stood up by pressing Hua Tuo's shoulders and shouted to the team not far away, "Lang Yan, hurry up!" ”

Hearing the call, the wolf eye ran over quickly, and after coming to Yao Ran's side panting, the wolf eye stood up straight in front of Yao Ran and said, "Patriarch, the wood has been pulled over, and it is all some relatively coarse materials. ”

Yao Ran patted Lang Yan's shoulder, pointed to the stone on the ground that he had just made and said, "Sit down, it must be very hard to run such a long way." ”

After Lang Yan sat down, Yao Ran continued to speak: "Let me introduce, Lang Yan, you both know each other, Yao Huo may not have much contact. ”

Lang Yan's eyes intersected with Yao Ran's three apprentices, and then they nodded again, very fatherly. Yao Ran is very satisfied with this down-to-earth young man, but he doesn't know how well he understands and which direction his interests are.

"In the future, Langyan will be your little junior brother, and he will be your classmate in the future!" After speaking, the three of them all showed surprised expressions, because Yao Ran rarely accepted apprentices, but the apprentices he accepted were all extremely intelligent. So this Lang Yan seems to have something extraordinary.

But Yao Ran's next words made the three of them a little blindsided, "Lang Yan, because I don't know your learning ability and where your interests are, so you can listen to everything I say, and it doesn't matter if you don't understand, but after a while, I will give you one, which is suitable for your study and research." Do you understand? ”

Lang didn't say much after a long time: "Understood! ”

Yao Ran continued to speak, "Today we will talk about the principle of the waterwheel. Yao Ran's fingers tapped on the proposed drawings on the stone.

"Our drawing is mainly the part of the wheel of the waterwheel, which consists of a huge wheel and divided planks. Today I'm going to make this wheel and dig a channel under the water here, do you know why we want to dig a channel here? ”

Yao Ran pointed to the shoal not far away, this time it was four people who shook their heads at the same time, Yao Ran nodded, pointed to his mouth and said, "Look at my mouth, stretch out your palms." The four apprentices did so, and then Yao Ran walked up to the four of them, opened his mouth wide and blew on the palms of the four people, and then pointed to his mouth and said, "This time I have narrowed my lips a lot, and then you can feel which one is stronger." ”

After saying that, he closed his mouth and forcefully blew the air out of the space between his lips. After the four of them felt it, Xiaoping took the lead and said: "When the lips are small, the airflow is big. ”

Then Yao Huo also hurriedly said, "What the teacher means is to let the water in the shallows of the river pass through a mouth like the shape of the lip." ”

Yao Ran nodded with satisfaction, and said, "That's right, that's right." In this way, we use a small space to pass through a large amount of water, and each blade of the waterwheel will increase its impact and increase its rotational speed. ”

"With its high-speed rotation, we can make the impeller blower continuously provide a steady stream of our blast furnace at high speed, and we also have to use the oxygen from the heating pot to send it to our blast furnace, and here we have to talk about combustion.

Dust will be left after combustibles are burned, so what will happen when oxygen is burned has a lot to do with combustibles, for example, we use firewood, or we make charcoal that will survive carbon dioxide after burning. ”

Yao Ran himself talked about the rise, and even the molecular chemical formula was said.

After saying it, I realized that I had lost my mouth and quickly corrected, "It's a gas that combines oxygen and then carbon afterward, it can't make combustibles burn, and if we collect it in a container, we can use it to extinguish fire." But we can't make such a container with our current level of technology. ”

But we can't let such non-combustible gases into our blast furnace, so we make a pipe that can heat the gas, and make a struggle device in the flame pile on the air inlet to separate the carbon dioxide, that is, to separate the carbon dioxide with water.

I make a clay brick full of holes and put charcoal on it, and the carbon dioxide from the combustion mixes with the water, so I reduce the carbon dioxide in the heated air and send it to the conduit.

Then heat the whole pipe outside and then use the blower to heat our heated hot gas, use the blower to send the heated gas to our blast furnace, and use the hot oxygen to provide oxygen to the flame of the entire blast furnace, so that the heat will not be lost. ”

Yao Ran still didn't control his desire to tell this knowledge, and his mouth suddenly said a long paragraph like a machine gun, and the four apprentices all listened to what they said with staring eyes.

Then Yao Ran knew that he was talking a little fast and a little too much, so he hurriedly made a round for himself, "These are the key components of our future production of other parts of the blast furnace, but they are not what we are going to make in the next few days, so today we will make a waterwheel first." I'm just going to talk about that. You can remember as much as you can understand, and it doesn't matter if you can't. ”

After Yao Ran finished speaking, he stood up and said, "Let's make this big wheel first, let's make an isosceles triangle first, and then according to the size and size of this triangle, make multiple triangles of this shape, and then we will splice these triangles together, and the waterwheel we want to make is completed." ”

"Of course, after making the triangle, we have to connect all the parts together, and we also need a very large central bearing, which we will now use a huge piece of wood to make, and in the future we can use cast iron made of iron as the bottom bracket. In this way, it will last longer. Yao Ran patted the dirt on his buttocks and walked to the pulley that was unloading. He also stuck out his tongue when he turned his back to his four apprentices.

It's not easy to be a teacher, I'm afraid that you will understand, I'm afraid that you won't be able to remember if you listen too much, I'm afraid that it's a mess to talk too much, Yao Ran suddenly recalled his teachers, I'm sorry for you, I'm talking about it today, and I don't know about it. If you don't look at the retinal system, who knows this, is carbon dioxide heavy? I'm dizzy, teacher! I miss you! (To be continued.) )