Li Shimin's will: Li Zhi, the throne belongs to your brother

Although light snow doesn't affect blast furnace ironmaking much, people are prone to get sick.

"I have been outside the Great Wall all year round, and my body is comparable to that of a tiger and an ox. How could I catch the cold!?"

Li Shimin patted his chest with contempt in his eyes.

"How did the father get his old cold legs?" Li Tai mercilessly exposed Li Shimin's performance.

Li Shimin squirmed his mouth, watching Li Tai hesitate to speak, very unhappy.

At this moment, Yan Wan brought the coir raincoat with someone, and when she saw Li Shimin, she quickly saluted.

"My son-in-law pays respects to his father."

"Well, the coir raincoat has been brought, put it on quickly, and leave quickly." Li Shimin urged.

"Yes!!" Li Tai obeyed, and quickly ordered Yan Wan: "Take out all the hundreds of coir raincoats in the warehouse.

Distribute it to the accompanying guards and the Royal Forest Army, and the excess will be distributed to others later. "

"Yes..." Yan Wan stopped the hand that was preparing to put Li Tai on, and looked at Li Shimin.

"Go, go!" Li Shimin saw it, and waved his hand indifferently.

"My son, leave." Yan Wan led a group of servants to the storeroom to get the coir raincoat.

"When you love the people like a son, the emperor has a heart."

"Father is absurd." Li Tai was speechless.

In a snowy day, people are ordered to work, but there are only two coir raincoats, what is there to praise.

Soon, Yan Wan led dozens of people out with coir raincoats.

Seeing this situation, they took out hundreds of sets of coir raincoats from the warehouse.

Not long after, everyone put on coir raincoats.

Gradually, there were little traces of wetness outside the door, which was the wet trace left by the melting snow.

Seeing the wet trace, Li Shimin stepped on the horse and said to Li Tai.

"Riding on the light snow, we rushed to the blast furnace."

Li Tai got on the horse together, and said: "I obey."

"Well, drive!" Li Shimin shouted, turned his horse's head and ran towards the blast furnace building.

A group of people followed closely behind.

Soon, he walked through the quiet Chang'an Street, passed the gate of the city gate, and walked through the mountains.

After half an hour's journey, the group arrived at the blast furnace construction base.

At this time, snow particles began to fall, rustling on the coir raincoat.

"The grass people pay their respects to Your Majesty."

Yang Siqi saw a group of people from a long distance, and hurriedly notified everyone.

"Exemption." Li Shimin waved his hand and said to Yang Siqi, "Everyone put on coir raincoats and prepare to start the furnace for ironmaking!!"

"Yes." Yang Siqi and the craftsmen did not expect to open the furnace now, let alone the coir raincoat.

And Li Shimin turned to Li Tai and asked. "How is this blast furnace used?"

Li Tai glanced at it, and found that this blast furnace has not changed much from before.

There is only a pre-prepared pit at the exit, the pit is very flat, and there are many gear molds.

How should it be used?

It feels like it should be the same process as blacksmithing, first fire up the furnace, and then pour ore and fuel into it.

After that, since the slag is lighter than the molten iron, the slag will flow from above, and the molten iron will flow from the bottom.

The question now is how to ignite the stove.

"Yang Siqi, is the brick kiln still open?" Li Tai turned to Yang Siqi and asked.

"Returning to Your Highness, the brick kiln is not burning." Yang Siqi replied a little puzzled.

This is troublesome. If the brick kiln is still open, you can use the charcoal and coal that are burning in the brick kiln as the ignition material to ignite the stove.

"Is there something missing?"

When Li Shimin saw Li Tai frowning, he thought that Li Tai had forgotten something just like last time.

Hearing Li Shimin's question, Li Tai frowned and said.

"Going back to Emperor Father, my son is planning to light the stove with coal."

The first step is to light the stove?

Li Shimin nodded and recorded in his heart, after thinking for a while, he could only speak.

"I won't do that either.

As the saying goes, good things take time, if you don't understand, try a few more times.

It’s okay to fail!But it is still simple to light the fire. "

Li Shimin rubbed his temples to express his understanding. Although it was made, no one knows how to use it.

Even Li Tai just relied on listening to his grandfather's dictation in his previous life to create a clay blast furnace.

It is the first time to actually implement it, and I don't know if it will work.

Who cares, it doesn't matter even if it blows up, the big deal is just building one.

Thinking of this, Li Tai boldly began to command: "Take off the coal and burn it red, throw it into the stove, and start the fire."

Chapter 86 Fire Tornado

Yang Siqi, who was wearing a coir raincoat, saluted and said, "The grassroots obey."

After finishing speaking, he turned and left, and said loudly to the craftsmen: "You guys carry coal, you go carry wood to make fire..."

With an order, the craftsmen started the orderly ignition work.

Soon, with everyone's concerted efforts, several fires were raised, and coals were placed in the center of the flames to burn.

Many craftsmen leaned on the fire to keep warm, and pulled coals over and over again.

Seeing this, Li Tai also moved over, and the craftsmen beside the fire immediately left in a very sensible way.

And Li Shimin followed Li Tai's side every step of the way.

"Why use this stone nirvana? Isn't it possible to use charcoal?" Li Shimin asked as he watched the craftsmen burn coal with fire.

"Shi Nie is also called coal. Coal has a higher temperature and is more resistant to burning." Li Tai explained casually.

The temperature that coal can release is higher, and at the same time, it is more resistant to burning, but charcoal or other things are needed to ignite coal.

"Temperature? I know this."

Li Shimin frowned and thought about something, then he remembered after a while and said to Li Tai.

"I remember this thing, it is the degree of heat and cold of the object, right?"

"Yes!" Li Tai looked at Li Shimin and thought for a long time, then replied a little speechlessly.

As time went by, the charcoal under the fire became more and more, and the coal was not buried in the middle of the fire.

Yang Siqi was staring at the coals on the fire with dry eyes, and from time to time he used an iron rod he found somewhere to pull the fire to see if the coals were red-hot.

After an unknown period of time, the coal finally revealed a bright red color.

His eyes lit up immediately, and he ran to Li Tai and told:

"His Royal Highness, the coal has already burned red, can we put the coal into the blast furnace?"

Before Li Tai could speak, Li Shimin said to Yang Siqi excitedly, "Is it red? Show me!"

"Yes." Yang Siqi hurriedly took the iron rod, stretched it into the fire in front of him, and pulled it up. Suddenly, sparks splashed and there was a crackling sound.

There was a hole in the fire, and Li Tai and Li Shimin could clearly see the glowing coals.

"Emperor, what should we do next?" Li Shimin asked Li Tai excitedly.

The coals are red hot, now it's just a matter of getting them into the furnace.

Thinking of this, Li Tai spoke to Yang Siqi.

"Throw all the coal from the stone platform into the blast furnace. If there is not enough charcoal, the furnace must be lit anyway,"

"Yes!"

After receiving the order, Yang Siqi turned around and began to direct the craftsmen: "Quickly pick up the shovel, shovel up the fire, and send it to the opening of the stone platform."

"Yes."

With an order, some craftsmen brought shovels.

The burning logs began to be removed in an orderly manner, revealing bright red charcoal and coal.

Immediately afterwards, they shoveled the coal and charcoal together, like snow.

Then he walked up to the five-meter-high stone platform carefully, and poured the pile of fuel on the shovel into the feed port.

And Li Tai led Li Shimin to stand at the observation port, observing the situation in the stove.

I saw the fuel falling from the feed port, and there was a crackling sound, and then the coal and charcoal shattered in response to the sound, becoming thin and flakes and laying a thin layer on the bottom of the furnace.

Then a burst of blue smoke and dust came out from the openings on both sides, obviously mixed with a lot of wood that had not been completely burned into charcoal.

But with more charcoal and coal, the temperature began to rise sharply.

The unburned wood was ignited, and open flames appeared from time to time, and the burning flames appeared like fire tornadoes, constantly spinning and rising.

Looking at this scene, Li Shimin's eyes were worth it. He looked at Li Tai, and then at the fire tornado that flickered from time to time.

His head was sweating, his lips squirmed, his Adam's apple moved up and down, but he didn't say a word.

It seemed that he was quite shocked by this strange scene.

Hearing the sound of swallowing saliva, Li Tai knew what Li Shimin was thinking, and quickly explained.

"Father, this is the chimney effect. Not only will the fire grow bigger and bigger, but there will also be fire tornadoes.

It looks amazing, but seeing a lot is actually not a big deal. "

(Chimney effect, hot air continues to rise, negative pressure will form below, cold air will be sucked in, oxygen will increase, and the fire will grow bigger.

Fire tornadoes will form if there is an open flame.So don't be an elevator in case of fire. )

It's okay not to say this, but Li Shimin started to make up his mind when he said it.

While thinking about it, he shook his head and muttered in his mouth: "Fire dragon?? Science can invite a fire dragon? It's really terrifying!!"

Seeing this strange scene, many imperial guards behind them also whispered in low voices.

"It's really a fire dragon!!"

"I didn't expect that this blast furnace, with its ugly appearance, actually invited a fire dragon inside?"

"It's downright terrifying."

Soon, many craftsmen were also attracted to you, thinking about their toes, and even jumped up to see this strange scene.

Whenever a piece of wood is ignited and a fire tornado occurs, it will cause a burst of exclamation.

"Oh, look... Another fire dragon appears!"

"Will the fire dragon come out?"

"With this stove, what are you afraid of!"

Li Tai on the side was quite speechless, feeling very embarrassed seeing the startled appearance of a group of people.

Although it was the first time for Li Tai to meet him, he felt nothing after getting to know him, it was just a natural phenomenon.

But the ancients were different, they had never seen such a miraculous thing.

"Cough..." Li Shimin came back to his senses, wiped the sweat from his brow, and looked at the fire tornado that appeared and disappeared from time to time.

Turning around and looking at the craftsmen and imperial guards behind him, he said with a serious face.