Chapter 222

The next morning, Ren 8000 went out to meet tongzhenye. Accompanied by the ordnance Secretary Feng throat and the ordnance Secretary Shaoqing Zha Hongbo, they took the bodyguard and went straight to the east city.

Ren 8000 rode a horned ox, the most common mount in Dayao plain, mixed with the crowd. He twisted his fart Gu from time to time, as if there were nails below. It was really uncomfortable to ride, which was much worse than looking at mountain birds.

But it takes great courage to ride a mountain bird in the crowd. Not to mention the visual feeling of BMW people mixing into an alto, the faint smell that goes straight into your nose is enough to push most people far away.

Ren 8000 walked in the direction of the east gate of Lancheng for the first time. After leaving the east city, he walked two columns of incense and turned north. For half an hour, he could see a small hill, and he could see the black smoke from there. When he came closer, he saw a circle of one person high walls surrounded by rocks in front. There was a gate in front. It was cold and clear. Here was the Jingtian stove.

Liucuishan iron ore is usually smelted in a small town outside the mountain, and then transported here like damoshan iron ore.

The guard opened the door when he saw a group of people from a distance. When they went in, they could see a large open space, scattered with preliminarily melted iron ore, copper ore and a lot of drying firewood.

And the ores Ren 8000 saw in the Ministry of work yesterday were also transported and piled aside. Someone is crushing them.

Several big men with fierce faces first put the limestone ore on an iron plate, and then slapped it down, which directly turned into a pile of small fragments. Soon, a pile of gravel appeared on the iron plate, and then someone transported it to the iron plate on the other side. A huge stone roller was placed on it, which was similar to the smooth roller in front of the road roller, Two people pushed the huge stone roller forward from left to right, and directly pressed it on the gravel, which turned into a pile of smaller end of the year, and then pushed it back.

After several times, a piece of stone powder and a small amount of broken slag will appear on the iron plate. When someone receives it, he will screen out the powder with a sieve.

When the people turned their heads here and looked at their gravel into powder, the people of the work department hurried out to see the ceremony and took the people inside.

It's more like an earth kiln than a cylinder made of earth, with a diameter of two meters and a height of three meters. After putting iron ore in it, put a lot of firewood to melt. The speed is very slow, and a relatively rare firewood called wood burning needs to be added to push the temperature to the point where the iron can be melted.

Then the molten iron will flow out along a slot below.

The iron obtained in this way is very soft and contains a lot of impurities. Craftsmen need to beat the impurities with a lot of time after heating.

It can be said that such iron melting and forging method is quite inefficient, time-consuming, and the consumption of firewood is also great.

As Ren Bayi walked, he listened to the Work Department official of Jingtian stove introducing the process here and nodded to understand.

However, when Ren 8000 was walking inside, he saw several melting furnaces with one person high big boxes next to them. Someone kept pushing the wind into the melting furnace.

It was the bellows that Ren 8000 and Fenghou said last time.

"With this bellows, the temperature in the furnace has increased a lot and the iron making speed has been much faster. Thank you, Ren Fu Cheng." The wind throat nodded and said to Ren 8000.

The Work Department official looked at Ren 8000 and heard from the words of the air hose that he proposed the blower?

"When will the other bellows be ready?" Fenghou asked the Work Department official again.

"It will be fine in these two days." The official of the Ministry of works answered quickly.

"Has the raw cement been proportioned?" Ren 8000 asked tongzhenye. Tongzhenye looked at the wind throat, the wind throat looked at zhehongbo, and zhehongbo looked at the official.

"Sir, are those stones sent yesterday? They have been prepared as said." The official said quickly.

Ren 8000 scanned the eyes of several people and saw them looking at each other. He thought he might as well ask the official at the beginning.

"What do you call it?"

"Lord Fucheng, the next officer is Jingtian Furnace Supervisor. Just call me Tiemu. If you don't understand anything, you can ask the next officer." Tiemu said with a fist. The son-in-law chosen by the daughter-in-law is the only one in the whole dynasty who is not an ancient people. No matter who he is, he can recognize it.

Not to mention being an official in LAN city.

"Bring the raw cement." Ren 8000 nodded: "see what effect it is to burn out."

Then someone took the raw cement powder and Ren 8000 looked at it. It was all sifted out.

Then find an empty stove to add firewood, and then fill the empty core column with fine holes made of clay with cement raw material and put it into the empty stove. A moment later, heavy smoke rose from above the earth stove and spread around, and the people retreated to the distance.

In order to make the temperature meet the requirements of Ren 8000, another man covered his nose in the thick smoke, pulled the bellows, coughed twice from time to time, and then someone replaced him.

"How long will this burn?" Copper Zhenye asked.

"It shouldn't take too long. The temperature can be reached." Ren 8000 is not sure. According to the information he has obtained, only what happens to the cement at a certain temperature, but he doesn't say how long it will burn.

"Try burning bricks again." Ren 8000 looked at the empty earth stove around and said.

Originally, I was going to build a brick furnace after the cement was burned, but now looking at this kind of earth furnace, Ren 8000 thinks he can try it. Anyway, he is idle.

The clay has also been taken back for some time. Although it has not been dried, it has weathered long enough. Burning bricks should be enough.

Then the craftsman of Jingtian furnace began to pour the clay powder into the tank according to his instructions, add water and stir it into mud, then pinch out brick embryos, put them around the wall in the earth furnace, and then add wood in the middle to start calcination.

"I'm afraid it will burn for about ten days. Don't break the fire in the middle." Ren 8000 said to Tiemu, and Tiemu quickly wrote it down.

Up to now, he doesn't know what these big men want to burn mud for. Anyway, they will do what they arrange. Now Jingtian stove has nothing to do. He has to be idle for at least half a month.

The cement is fired quickly. Turn off the fire before dark and cool down quickly. Then take out the clay pot and pour the cement on the ground. Originally, it had been sintered into pieces, and when it fell to the ground, it was broken into small pieces.

Everyone took their eyes to see Ren 8000. Is this what he said about cement like stone?

Ren 8000 squatted next to the pile of clinker and grabbed it with his hand. There were more crystals like glass on his hand, which were sintered at high temperature just now.,

"Eh? Is this a gem?" Feng throat was surprised at first, and then his face showed the appearance of discovering the great secret.

It was earth when it was sent in just now, but how could there be precious stones in it when it came out? Although it is very small and broken, and its value is not high, it is also a gem. It is much more valuable than this soil.

Although things didn't burn into stones as Ren 8000 said, it would be a great progress if they could burn gemstones from the soil.

But people immediately began to think.

Where was the soil dug? Send someone to dig tomorrow.

"It's glass, or crystals like glass." Ren 8000 squints at the crowd. It's terrible to have no culture on his face.