And the other people around him were also smiling, looking at this furnace mouth about the size of a head, but the outside was very large, like a blast furnace in the shape of a wine bottle, and they couldn't help but be a little happy.

Although they didn't know what this thing was for, they heard Li Fei say that having a blast furnace meant that half of the house had been built.

"Wait until tomorrow to dry and you can use it!" Zhu Hao opened his mouth and said.

In the early morning of the next day, Li Fei rushed to the coast with a large number of people to find the conch shells and shells that Zhu Hao needed.

Because everyone has long been tortured by such a harsh environment and can't sleep, they have a strong executive power in building a house, and almost all of them are full of energy.

Conch and shells are not difficult to find, but they are rarely eaten because of the uneven quality of the meat, and the survivors of these relatively low status often sneak to the beach to pick up some shells at low tide and eat them.

So these things actually didn't bother them at all, and in just one morning, no less than ten baskets of conch and shells had been collected.

Li Fei took two people to bring these trophies back to the camp, while Zhang Ting and Su Xue had been waiting for a long time, because some live shells were actually edible and very delicious.

And Zhu Hao's side can only use the outer shell to make lime, so after these shells are transported back, they have to go through a processing procedure.

Zhang Ting and Su Xue took the other women to take out the meat inside, and then packed the shell together and sent it to Zhu Hao's side.

In order to ensure that there are no accidents such as fires during the firing process, they deliberately cleaned up all the positions around about ten meters in diameter.

Taju is now leading the rest of the tribe to cut down trees.

As the chief director and the drawing engineer this time, Zhu Hao and Zhang Ting were standing in front of the blast furnace at the moment, discussing something fiercely.

The construction of the house is in full swing, and everyone is watching the situation here.

Whether the firing can be successful or not depends on today!

Zhu Hao said that it must be false that he is not nervous now, he took a deep breath gently, looked ahead, and tried his best to calm his restless little heart at the moment.

And at noon, Li Fei also returned, as the supreme leader of this island, it was naturally impossible for him to miss such a great moment.

Seeing Li Fei coming, Zhu Hao, who was originally in a slightly calmed mood, seemed even more panicked at the moment.

Li Fei just smiled lightly, and then patted Zhu Hao's shoulder.

"Since it's the first experiment, there is naturally a possibility of failure, so don't worry, even if it fails, let's start all over again, and no one will blame you."

Hearing Li Fei say this, Zhu Hao's heart felt a little better.

He took another deep breath and poured the material down the top of the blast furnace.

"Is the temperature enough?" Su Xue asked.

"I've roughly estimated that the maximum would be around 500 degrees Celsius."

Su Xue nodded, although she didn't know the specific operation like Zhu Hao, she also understood the principle of calcination of lime.

Seeing the extreme temperature coming from the boiler, Zhu Hao and Su Xue breathed a sigh of relief.

In the calcination of lime, temperature is an indispensable condition.

The biggest function of the blast furnace is to make the internal temperature of the blast furnace reach a very exaggerated level.

Seeing that the two of them were idle, Li Fei asked his doubts: "Zhu Hao, why can this shell also become a raw material for forging lime?"

The latter looked at Li Fei a little stunned, and then frowned as well.

"Doesn't the captain know? I see how decisive you promised yesterday."

Li Fei scratched his hair very embarrassed at this time, obviously a little embarrassed.

"Nope

Yes, I don't know any of that. I said yes yesterday because I think that since a professional like you can say it, there must be some basis."

After listening to Li Fei's explanation, everyone suddenly laughed a little, and even Liu Keying, who had just arrived, covered her cherry mouth and snickered.

It's just that Li Fei's words fell into Zhu Hao's ears, but they had no meaning.

The latter was a little moved, Li Fei's behavior from yesterday to today can be said to be really unconditional trust in himself.

Again, this strengthened his determination to do this well.

"In order to repay Captain Li Fei's kindness, I will burn lime even if I say anything."

Then he also smiled and answered Li Fei's questions very patiently.

"The shells of shells and conches contain a lot of calcium carbonate, and this is the richest component of lime."

Li Fei nodded, although he was a little ignorant, but at least to some extent, he was not busy in the morning.

Zhu Hao took the charcoal pen handed over by Zhang Ting and began to record some data in the firing process.

Li Fei looked at the tattered paper he used, and had a little thought in his heart.

When you have time, be sure to make some paper to use.

The papermaking technique has been spread in their Huaxia for a long time, so Li Fei and they are not the slightest stranger to it.

And on this island, everything is scarce, except for trees, which are almost inexhaustible.

Time passed minute by minute, and soon it was time to open the furnace and check the results.

This is still a furnace that has been cooled for about half an hour, and Li Fei gently touched it, and could only feel a strong burning sensation for a while.

It is not difficult to imagine and guess what this furnace will look like when the temperature is at its highest.

Zhu Hao first used a wooden stick to straightly take out some firewood ashes.

Then he breathed a sigh of relief, and everyone understood that success or failure was here.

All of them were sweating profusely from the heat, but none of them went to shade them, but scrambled to find a convenient place to observe.

Finally, under the witness of everyone's eyes, Zhu Hao opened the blast furnace lid under everyone's eyes.

Everyone held their breath and didn't even dare to blink their eyes, for fear that they would miss this historic scene because they blinked.

Zhu Hao first took out a few snow-white conch shells from the stove, which were burned to a milky white color at the moment, he just blew them lightly, and suddenly the conch shells turned into smoke and floated in the air.

And Su Xue, who was standing next to Li Fei, was also with blazing eyes at the moment, and involuntarily said, "It's done!"