Daming One Piece

Chapter 91 Gunpowder (Second update, please recommend, please collect)
In fact, making gunpowder is really not difficult!

It is nothing more than mononitrate, disulfide and three charcoals.

What's the problem.

What is rare?
The rare thing is the purification of raw materials, mainly the purification of potassium nitrate and sulfur.Especially the former, its purity is directly related to the power of gunpowder.As for gunpowder granulation, it is an indispensable technology for military gunpowder, because powdered gunpowder has many disadvantages in combat, such as inconvenient transportation, uneven burning rate, and easy to be affected by moisture.But this is not the most deadly.

"The most terrible thing is that the powder medicine is not used at all on the ship!"

Guo Huaiyi's tone seemed a little excited.

"Mr. Shi, you don't know. In the past, we also thought about the difference between this gunpowder and gunpowder? Although the ones we make ourselves are not as strong as others, we can barely use them, right? I never thought, but it's completely different when we get on the ship. , not to mention the lack of strength, sometimes it even fails to ignite. Do you think this is something wrong? Is it true that water can overcome fire, and ordinary gunpowder can’t be used when it arrives on the ship? What kind of secret method must be used? "

Guo Huaiyi's words made Shi Yiwen laugh.

"Then what is the secret method, Captain Guo? It can't be used because when the powdered gunpowder is bumped on the sea, the sulfur powder, charcoal powder and saltpeter powder with different weights will be separated from each other, and the densest saltpeter powder will be precipitated. To the bottom of the gunpowder barrel, the lightest charcoal powder will be on the surface of the gunpowder barrel, which will inevitably reduce the power of the gunpowder, and of course it will not ignite after a long time! Unless you pour out all the gunpowder and remix it before use Just get up."

"It's fine to turn this into sesame seeds?"

"That's right, granulated gunpowder can avoid these problems. Although granulated gunpowder will also be stratified in the turbulence of the waves, it is nothing more than the large particles running to the bottom of the powder barrel, and the small particles running to the surface of the powder barrel. It will not affect the quality and use of gunpowder."

Explaining the difference between the two, Shi Yiwen said casually without even looking at Zheng Yiguan.

"Do we have saltpeter and sulfur in our village? We're preparing gunpowder now, we can't just sell guns without selling medicine, right? If this is done well, we can make a lot of money."

Let alone selling guns these days, selling gunpowder alone can make a lot of money. How did the DuPont family start their business?Isn't it just by selling black powder, and a huge chemical empire has been established by relying on black powder.

"You, you really know how?"

The ugly Zheng Yiguan stared at Shi Yiwen with mixed emotions in his heart, his face turned green and pale at times.

"What do you say?"

After dropping these words, Shi Yiwen turned his face and walked towards Yan Ruyu.

"Ruyu, we have to find another place. After all, this gunpowder factory is a bit dangerous, so it can't be too close to the stockade."

"Brother Shi, what he said is that everything should be done according to Brother Shi's wishes."

Yan Ruyu had a smile on her face, now that he was by her side, she felt that everything was easy, and there seemed to be no difficulty.

"Okay, then I'll pick another place later."

When turning around to leave, Shi Yiwen's gaze fell on the two cannons pulled on the big carriage, and he couldn't help but sighed.

"1000 taels..."

1000 taels of silver bought such two lumps of iron?

His gaze caused Zheng Yiguan's face to change slightly, and he was despised again.

"Old Six!"

Just at this moment, Zhang Hong came to his side.

"Ok?"

"You spent thousands of taels of silver really... hey"

Shaking his head and letting out a long sigh, Zhang Hong turned and left, shouting as he walked forward.

"Master Shi, wait a moment, wait a moment, I have something to discuss with you."

What are you discussing?

Of course, I bought cannons. Cannons are so expensive, no one is short of a few on board. In these days, it is safe to have cannons on board.

There are guns, of course there must be gunpowder.

It is really not easy to make gunpowder. For the purification of potassium nitrate, even if there is no decent tool, Shi Yiwen is confident that he can get rid of this era by 200 years. Even for the crushing of raw materials, he knows to use wooden drums. Is it finer than the raw material rolled out with a wooden mortar, and the drum is complicated?It's just a covered wooden barrel with two wooden balls, um, plus a turntable, which is to use the principle of centrifugal grinding.

But the most important thing is the granulation of gunpowder. As early as the beginning of the 15th century, when Europeans realized the advantages of granule gunpowder, some people even believed that the power of one pound of granule gunpowder was equivalent to the power of three pounds of powder powder. Exaggerated, but it can also be seen that the power of granulation technology to black powder has been improved.

The easiest way to granulate gunpowder is to use a granulator.In the absence of granulation equipment, we can only use the most primitive method, mixing gunpowder with rice soup and stirring with a wooden shovel, until it is mixed into a ball that can be formed into a ball by hand, and then rubbed back and forth by holding the ball Dynamically sieve to obtain gunpowder particles with a size of about one millimeter.

"That's it, it's that simple..."

Looking at the gunpowder granules falling under the sieve, Guo Huaiyi was dumbfounded. The granulation of gunpowder, which was quite mysterious to them in the past, was actually that simple.

"That's right, it's gunpowder and rice soup, and a sieve is enough?"

Don't say, some things are that simple, Shi Yiwen said with a smile.

"It's nothing complicated. If there is a press, it will be simpler."

Is it simple?

The process of granulation is simple, but the purification of raw materials is complicated. Shi Yiwen is not afraid that someone will learn to granulate, but the purification of raw materials... With the current level, the purity of the potassium nitrate they produce can be as high as 90%. up.

The purity of the raw material, and even the type of wood the charcoal is made of, can affect the power of the gunpowder.What sesame sticks, willows, even the degree of carbonization of the wood will affect the gunpowder.In short, the details are gone.Where is the science?
It's in the details!

"This, is this all right?"

"Not yet!"

Shi Yiwen shook his head and said.

"The current pills still have sharp corners, and the surface is a little rough. So it needs further processing."

After shaking his head, Shi Yiwen shouted again.

"Xu Hu, bring that leather drum here."

The so-called leather drum is a wooden framed leather barrel.

"Master Shi, what is this for?"

Seeing them putting the gunpowder into the leather drum, Guo Huai looked puzzled, and then watched them put the leather drum on the turntable of the pottery pot, and then kept stepping on the pot to rotate the drum at high speed stand up.

"When the skin drum rotates, the sharp corners of the powder particles in the drum will be ground away, making the surface smooth, reducing its sensitivity to friction, and it can also fill the small holes on the surface, making the outer surface of the gunpowder particles dense. And reduce the powder of the medicine grains during transportation, the grains after rolling can not only play a certain role in moisture-proof, but also improve the power."

After everything was done, tens of kilograms of gunpowder, the size of a grain of rice, was placed on the cloth, and the water in the medicine began to dry under the scorching sun at noon.In fact, this is not considered complete. If there is graphite, you can also add graphite polishing and moisture-proof. The moisture-proof effect will not be affected by moisture for several years.

(End of this chapter)