In the courtyard of the Qingque Tribe, there is an empty space where Hei Wa is digging a hole.
Han Cheng was on the side using the soil dug out by Hei Wa to water and mix the mud.
They are going to build a new kiln or a blacksmithing furnace here.
The earthen kiln by the river outside the Qingque tribe is fine for making pottery and tiles, but it is too big for putting in charcoal fire and making iron.
Digging soil and mud, building vents... these things were done very smoothly. It didn't take half a day to use up, and a brand new small stove came out.
There is a flame burning inside the stove, and the ventilation effect is very good.
I have to say that Heiwa's technology for building these things is getting better and better.
Han Cheng walked to the stone slab and picked up a few mud lumps to look at. They were only half dry.
After thinking about it, I took out a dozen of them and put them on the wall at the edge of the stove to bake them with fire. This way they would dry quickly and the experiment could be carried out as soon as possible.
After doing this for a while, when you see that the mud lumps are almost dry, put the charcoal that you burned before into the stove.
There are four mud lumps on top of the charcoal.
The iron smelting experiment had just begun when Han Chenggong discovered a problem.
The charcoal fire in the stove is not burning vigorously enough.
The solution is to get a small blower or bellows.
Han Cheng is no stranger to the blower. When he was a child, when the weather turned cold and the farmers were slack, popcorn poppers would come to the village one after another.
A simple stove was set up, a fire was lit inside, and something black and burnt that looked like a bomb was placed on it.
It contains corn or rice.
After burning on the fire for a while, the 'bomb' was taken off the fire, put into a long pocket, kicked hard, and after an explosion, the hot popcorn was born...
Han Cheng's favorite thing to do at that time was not to pick up popcorn that had been thrown to the ground with his other playmates, but to squat next to the stove and turn the blower, also called wind gulu.
The structure of this thing is relatively simple. It mainly collects the wind generated by the rotation of the fan blades inside through the narrow air outlet, and blows it through the inside of the stove.
People who see hope are full of energy.
Han Cheng couldn't make the complicated Feng Gulu, but there was no problem in making it simple.
If there is no iron sheet to make the outer shell, the model is kneaded out of clay. After it is baked and dried, it is fired into pottery.
There were no iron rods for the shaft or iron sheets for the fan blades, so wooden sticks and bark were used instead.
Use a stone knife to carve a cross on one end of a wooden stick, and then cross two pieces of bark ten centimeters long and four centimeters wide.
A two-centimeter gap was carved at each intersection and stuck together, then stuffed into the cross sticks.
After tying it with thin rope, a rotating shaft with fan blades is ready.
Put it into the pottery shell, put a stone with a small pit underneath it, rub it with your hands, and the wind will come out along the seal.
Put a pre-made clay pot on the air outlet, insert the other end into the air inlet of the stove, rub it hard, and the wind will enter the stove along the pottery tube, and the fire in the stove will immediately become much stronger.
Hei Wa's eyes suddenly lit up.
After rubbing like this for a while, his hand hurt. Han Chenggong found a hand drill, removed the drill rod, put the shaft with the fan blades in, and pressed it back and forth a few times, and it became easier.
One thing that needs to be mentioned is that the general Feng Gulu is placed vertically, but the one made by Han Cheng is placed flat, so that it can be used to fan the flames with a hand drill.
"Whirring whirring……"
Hei Wa pressed his hand to press the drill, his eyes bright as he watched the flames in the furnace rise and fall with his movements.
It’s very similar to when Han Cheng squatted next to fried popcorn and shook the wind.
With Feng Gulu, it will be much faster to burn these iron-containing mud lumps.
In half an hour, the iron bacteria lumps placed in the stove turned red.
After burning for a while, there were signs of melting and softening.
Seeing that the fire was almost done, Han Chenggong used two long wooden sticks to take it out of the stove, placed it on a stone that had been prepared nearby, extinguished the fire on the two burning sticks, and took
Pick up another large wooden stick and start striking while the iron is hot.
"Bang bang bang!"
As he beat, the red scum flashed away and rolled to the side.
It didn't take long for the iron bacteria in this dumpling to turn from red to black.
Han Cheng beat him for a while and found that he couldn't move anymore, so he stopped.
At this time, the iron bacteria were not even half of what they were before.
I threw it aside and soaked it in water in the pottery basin. I picked it up and took a closer look at it. I found that this irregular piece was still far from iron.
After thinking about it, Han Cheng found a stone and smashed open the piece of iron that was not even a semi-finished product. After watching it carefully for a while, Han Cheng found a small iron bead inside.
Looking at the eight small iron beads in his hand, which were no bigger than mung beans, Han Cheng couldn't help but smile.
Iron!
This is iron!
It has been four years since he came to this era, and now he finally saw traces of metal. How could Han Cheng not be excited? How could he not be excited?
Hei Wa on the side looked at Han Cheng, who was grinning from ear to ear, and then looked at the small bumps in Han Cheng's hands. He really couldn't figure it out. These were just some ugly things. How could the Son of God do this?
So happy?
Can this thing make tools that are harder and more durable than stone?
But he soon started laughing, not because he had figured out the matter, but because he was having fun following the Son of God.
"Burn! Keep burning!"
Han Cheng cherished the small iron beads in his hand and put them into a clay pot. He shouted excitedly like he was getting chicken blood, and put a dozen mud balls into the stove at one time...
From that day on, the newly built stove in the Qingque tribe burned for five consecutive days before it finally stopped temporarily.
"Crash..."
"Crash..."
Han Cheng held the jar, which was not too big but seemed a bit heavy, shaking it from time to time with an idiotic smile on his face.
This surface is filled with large and small iron beads. This is the result of continuous labor over the past few days, which is about two kilograms.
This is the scale that was accumulated after all the iron bacteria around the Qingque Tribe were plundered.
With these iron beads, he will become more confident in the future.
With the iron beads of high purity, all that needs to be done next is to heat and melt these iron beads to create lumps of iron.
After thinking about it, Han Cheng decided to put a layer of charcoal in the stove, then put the iron beads into four pottery bowls of different sizes and put them on the layer of charcoal.
Then add a thick layer of carbon on top and start burning.
This crude method and tool consumes a lot of charcoal and time.
But now is obviously not the time to think about this. It is already thankful to God that we can get the iron out. How can we think about the loss?
