Chapter 1296： Gas mask and pressure cooker

Wang Shui is so dangerous that it will cause huge harm when it touches people. In desperation, Marin had to temporarily abandon the experiment of aquatic iron door corrosion and instead developed the gas mask first.

The gas mask Marin is no stranger. When raising silkworms in the family in the previous life, because of the frequent need to sprinkle with quick lime for disinfection, so Marin's mother was wearing a farmer version of the gas mask. The so-called farmer's gas mask is actually the original gas mask, with the core activated carbon removed. Because, the farmer's version of the gas mask, its role is mainly to prevent the eyes and respiratory tract of silkworms from being burned by quick lime. As long as a simple filter sieve is added, even without activated carbon. After all, quicklime is solid, not toxic gas.

For Marin to make a real gas mask, in fact, he only needs to fill the filter screen in front of the nose and nose of the farmer's gas mask with activated carbon.

But first of all ... Marin must first engage in activated carbon ...

So, Marin approached the craftsman and first made a simple farmer's gas mask. This is easy, but the leather is sewn all around the eyes and then wrapped in a hood-like space. Because there was no plastic, Marin used a wooden shelf directly. The craftsmen under Marin even made pocket watches. Such simple gadgets were made without effort.

Then, it is activated carbon. This is a bit more troublesome. Marin remembers that activated carbon mainly includes chemical activation method and steam activation method.

However, Marin remembers that the activated carbon produced by the chemical activation method is often toxic and can only be used to remove impurities and filter industrially. The activated carbon used for food production is often produced by impacting charcoal with high-temperature steam. The chemical activated carbon is often produced directly from coal.

Chemical famarin is not very clear about the technical content, but physical famarin still remembers. The specific process is-first put coconut shells and other wooden materials in the furnace at high temperature to isolate the air and heat it to carbonize it into charcoal. During the carbonization process, methanol and other substances in the wood or coconut shell are volatilized at high temperature, leaving some pores in the charcoal first. But this is not enough ...

After that, put the charcoal with smaller particles on the metal filter and put it in the furnace. Passing high-temperature and high-pressure steam, from the bottom to the top, scour the charcoal on the metal mesh fiercely to generate more voids and facilitate adsorption. The temperature of this water vapor is often as high as 500 degrees. Even, can reach 800 degrees ...

...

Well, high-temperature and high-pressure steam ... This is to force Marin to make a pressure cooker ...

Did not say-first put on the pressure cooker ...

Then, a pressure cooker with soft and thick elephant skin as a leather washer was born ...

In fact, when Marin was making paper, he made a large sealed metal container, and also added cowhide gaskets to seal the air. However, the cowhide is a little thin, and the effect of breath holding is not very good. But anyway, it is enough.

This time, because Marin sent someone to Senegal to hunt rhinoceros, he hunted many elephants by the way. Therefore, the thick and soft elephant skin was sent to the mainland.

Although elephant skin is very thick, it is too soft and not suitable for armor. However, it is very suitable for a leather sofa, which is much more comfortable than cowhide.

And now, Marin suddenly discovered that the thick and soft leather like elephant skin seems to be very suitable for the pressure washer ...

Moreover, in order to ensure that there is no gap between the face and the gas mask, Marin also used soft and thick elephant skin to replace the rubber edge of the gas mask in later generations, so as to achieve the effect of fully breathing.

After the pressure cooker was completed, Marin made a metal mesh with copper wire, but copper was easily oxidized under high-temperature water vapor. So Marin threw the copper wire mesh into the zinc solution and soaked it, and got a layer of galvanized layer. Zinc liquid is easy to oxidize, but after oxidation, the oxide layer formed is very resistant to corrosion and oxidation.

Then Marin made copper pipes and boilers and created a system for producing activated carbon. Then, Marin ordered the pressure cooker to boil water ...

The pressure cooker made by Marin is different from the small pressure cooker of later generations. This type of pressure cooker used in industrial production has a very thick wall and a heavy locking mechanism on the lid. In this way, it is not as easy to fry as the pressure cooker of later generations kitchen.

After cooking for a while, it felt almost the same, the worker wearing armor and anti-explosive, pulled down the valve ...

Suddenly, a stream of hot, high-pressure hot water steam followed the copper tube and rushed violently toward the copper furnace, sweeping through the metal mesh at a rapid speed, washing away the charcoal particles on the net. When this steam passed, the charcoal particles fell back onto the metal mesh ...

After that, Marin made people do this many times, and then took out that net of activated carbon ...

...

After getting activated carbon, it is natural to test the effect. Marin put activated carbon into the farmer's gas mask. Then, find someone to test the effect ...

This time I tried the poison gas, so naturally I would not find my soldiers. Then, a death row gangster was brought out ...

Marin made the dead prisoners tied up, and then put a bottle of royal water in front of him and threw another iron block into it ...

The iron block entered the aqua regia, violently tumbling, and the reaction speed was very fast. Then, a large amount of nitric oxide gas floated up and rushed to the death gate ...

But until the iron pieces were dissolved, the death row did not pass out ...

"Very good, a success!" Marin clenched his fists happily.

It's no wonder, after all, Marin had contacted the farmer's gas mask in his previous life. When I was young, I often took my mother's farmer's gas mask out to play war games with my friends. Therefore, the gas mask is still well understood. Otherwise, it will not be so easy to imitate. If you change to something he hasn't seen, even if you know the principle, it's not so easy to make.

In addition, elephant skin is really good, thick and soft. In many occasions, it can completely replace the role of rubber. The rubber trees promoted by Marin have not grown for 6 years, and they cannot cut rubber. So, had to deal with elephant skin first.

As for protecting elephants? Do not make jokes! The protection of elephants in later generations was because humans used advanced shotguns to kill too many elephants, which caused the elephants to be endangered.

In this era, elephants have little natural enemies. Because, even if the elephants are lions, they dare not provoke them. Even those powerful tribes in Africa need to be mobilized by their clan to dare to provoke elephants.

In the later generations of Marin, I saw a video of Lao Hei killing an elephant with a javelin. In that video, Lao Hei was covered with wild mountains and at least a thousand people. In order to prevent the elephants from fighting back, they dressed themselves up as fancy (actually to frighten the fierce beasts), and then kept crying and crying wolf to frighten the herd. The elephant group was really scared and began to run away. At this time, these old blacks really started to kill the elephants with a javelin ~ www.novelhall.com ~ If the elephants were not scared, but were irritated, Nima was going to be trampled to death ...

Moreover, the stone javelin is difficult to pierce the thick elephant skin, unless it is a metal spearhead, it can be easily done. Therefore, in this era, there is very little dare to provoke the elephants. Because the old black at this time, most of them are in the Stone Age.

In front of the powerful "Elephant Master", the Old Stone of the Stone Age was scared to tremble, and the farming was afraid of being ruined by the elephant herd. How dare you harm the elephant?

Therefore, Marin sent people to kill elephants in Senegal, and even got the gratitude of the local Lao Hei ...

...

After confirming that the gas mask is indeed useful, Marin began the experiment of corroding the iron gate with aqua regia ...

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