In the courtyard of the Qingque tribe, in a vacant place, Heiwa is digging a pit.

Han Cheng was watering and mud with the soil dug up by Heiwa on the side.

They were going to rebuild a kiln here, or a furnace for striking iron.

The earthen kiln next to the creek outside the Qingque tribe is okay for burning pottery and tiles, but it is too big for it to be used to put charcoal fire and make iron.

Excavation and mud, ram vents...... These things were done very smoothly, and it didn't run out for half a day, and a brand new small stove came out.

There is a flame burning in the stove, and the ventilation effect is very good.

I have to say that Heiwa's technology for these things is getting better and better.

Han Cheng walked to the stone slab and picked up a few mud lumps to take a look, but 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 and roasted them over the fire, so that they dried quickly and could be experimented with as soon as possible.

After a while, when the lumps of mud were almost dry, I put the charcoal that had been burned in the stove.

There are four lumps of mud on top of the charcoal.

The experiment of iron smelting had just begun, and Han Chengcheng discovered the problem.

The charcoal fire in the stove did not burn vigorously enough.

The solution is to get a small blower or bellows out.

Blower Han Cheng is no stranger, when he was a child, the weather turned cold, and when the farm was slack, there would be people in the village who fried corn flowers one after another.

A simple stove was set up, a fire was lit inside, and on top of it was a shelf that looked like a bomb, and something that had been burned black.

It contains corn or rice.

After a burst of burning on the fire, the 'bomb' was taken down from the fire, put one end into a long pocket, and kicked it hard, and after a bang, the hot popcorn was born......

Han Cheng's favorite thing to do at that time was not to pick up popcorn that had been jumped to the ground with other playmates, but to squat next to the stove and shake the blower, also known as Wind Grunt.

The structure of this thing is relatively simple, mainly the wind generated by the rotation of the fan blades inside is collected through a narrow air outlet and blown inside the furnace.

People who see hope are full of energy.

The complex Wind Grunt Han Cheng can't make it, and it's no problem to be simple.

There was no iron sheet to make the outer shell, so the model was made out of clay, and after it was baked and dried, it was burned into pottery.

There were no iron rods for shafts, and no iron sheets for fan blades, so wooden sticks and bark were used instead.

Cut a cross in one end of a stick with a stone knife, and cross two pieces of bark ten centimeters long and four centimeters wide.

A two-centimetre gap was carved out of each of the intersections, snapped together and stuffed into the cross-shaped stick.

Tie it with a thin rope so that the hinge with the fan blades is ready.

Put it in the crust shell, put it on a stone with a small pit underneath, rub it with your hand, and the wind will come out along the seal.

Put a pre-made clay pot on the air outlet, and insert the other end into the air inlet of the stove, rub it hard, and the wind will enter the furnace along the pottery pipe, and the fire in the stove will suddenly be much stronger.

Heiwa's eyes suddenly lit up.

After rubbing it like this for a while, his hands hurt, Han Chengcheng found a hand-pressed drill, removed the drill pipe, put this shaft with fan blades into it, and pressed it back and forth a few times, it seemed easy.

There is a place that needs to be said, the general wind grunt is placed vertically, and the one made by Han Cheng is placed flat, so that you can use a hand-pressed drill to fan the flames.

"Hoohoo, hoohoo......"

Heiwa pressed his hand to press the drill, looking at the flames in the furnace that were falling with his movements, his eyes lit up.

It is very similar to Han Cheng squatting beside the fried corn flower and shaking the wind and grunting back then.

With the wind grunt, it will be much faster to burn these iron-containing lumps.

In less than half an hour, the iron bacteria bumps placed in the stove turned red.

It burned for a while, and there were signs of melting and softening.

Seeing that the fire was almost over, Han Chengcheng took it out of the stove with two long wooden sticks, put it on a stone that had been prepared a long time ago on the side, extinguished the fire on the two wooden sticks that were on fire, picked up another large wooden stick and began to strike while the iron was hot.

"Bang bang bang!"

With his thrashing, the red scum flashed away and rolled to the side.

It didn't take long for the clump of iron bacteria to turn from red to black.

Han Cheng thrashed for a while and saw that he couldn't move, so he stopped.

At this time, this piece of iron bacteria is not even half of what it used to be.

After soaking the clay pot in the water, he picked it up, took it in his hand and looked at it carefully, and found that this irregular thing was still far from iron.

After thinking about it, Han Cheng found a stone, smashed this piece of iron, which was not a semi-finished product, and watched carefully for a while, Han Cheng found the figure of the 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!

It's iron!

It's been four years since he came to this era, and now that he finally saw the traces of metal, how could Han Cheng not be excited, how could he not be excited?

The black baby on the side looked at Han Cheng who was grinning behind his ears, and then looked at the few small bumps in Han Cheng's hands, he really couldn't figure it out, this was just a little bit of something that didn't look good, how could Shenzi be so happy?

Can this make a tool that is harder and more durable than stone?

But he soon laughed too, not because he figured things out, but because he was following Miko silly.

"Burn! Burn it again! ”

Han Cheng put these small iron beads in his hand into a clay pot with great treasure, shouted excitedly like chicken blood, and put more than a dozen lumps of mud into the stove at once......

From this day on, the newly built stove in the Qingque tribe burned for five days in a row before it finally stopped temporarily.

"Boom la la ......"

"Boom la la ......"

Han Cheng hugged this jar that was not too big, but it seemed a little heavy, shaking it from time to time, with an idiot smile on his face.

This face is filled with large and small iron beads, which is the result of continuous labor in the past few days, almost about two catties.

This is the scale that has only been accumulated after the iron bacteria near the Qingque tribe have been scavenged.

With these iron beads, he became more confident in the rest of the matter.

With iron beads of high purity, all you need to do is heat and melt these iron beads to make lumps of iron.

After thinking about it, Han Cheng's method was to first put a layer of charcoal in the stove, and then put these iron beads in four clay bowls of different sizes and put them on this layer of charcoal.

Then a thick layer of carbon is added to the top and the ignition begins.

This rudimentary method and tool consumes a lot of charcoal and time.

But now is obviously not the time to think about this, and it is already thankful to be able to get the iron out, so how can there be any effort to consider the loss?

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