Become the city lord from today

Mina took a few drawings and said,"Your Majesty, isn't this similar to the red fire extinguisher in the castle?"

Liu Feng brought several cans of fire extinguishers from the earth and placed them on Some important places in the castle, as well as study rooms, rooms and other important places

"Well, it’s just that this fire extinguisher can only be used in castles, tallest buildings, and grand theaters for the time being. Others still require a lot of research and development. Liu Feng said softly

"Your Majesty, do you want to promote it?"Anli said doubtfully.

"Let’s promote some simple fire extinguishers. We can make them ourselves. After the ones on the drawings are developed, we should leave them to the fire department. Liu Feng said lightly

"Produce their own? Can we make this red jar ourselves?"Nicole is interested.

"We can only make simple ones, and the red cans should be made by the scientific research department," Liu Feng said with a chuckle.

To make a regular dry powder fire extinguisher, the required procedures are more troublesome, and the welding process alone is If you can’t do it yourself, you still need a professional to do it.

"Are these red can fire extinguishers difficult to use?"Mina asked doubtfully.

There are fire extinguishers in the castle, but Cat-Ear Girl has never come into contact with them. The last time Liu Feng taught, she went out for something.

"It's very simple, not difficult at all and everyone can learn it. Liu Feng said with a chuckle.

An Li suddenly blushed, paused for a while and said,"This is really simple. I tried it last time.""

Last time, Fox Ear Girl wanted to try making a cake, but she burned the kitchen pot. Fortunately, she used the fire extinguisher in time.

"......"Nicole covered her mouth and laughed, and everyone nearby saw it.

"Your Majesty, what materials are needed to make a simple fire extinguisher?"Mina said doubtfully

"Dry powder and a container for dry powder are required."

Liu Feng flipped around on the table, and finally pulled out a document filled with materials from the bottom of the table and handed it to Mira.

He ordered,"Go to the Scientific Research Department and ask them to prepare these materials. Stop by the workshop and pick up some glass bottles."

"yes." Mira took the document with both hands and then withdrew.

When Liu Feng brought the fire extinguisher from Earth, he gave it to the scientific research department and asked them to study the main ingredients of the dry powder inside and whether they could find similar ones. It took more than half a year to finally figure out the ingredients.

They discovered several kinds of ores, then ground them all into powder and mixed them together to get the current dry powder.

Liu Feng also took it back to Earth. After inspection, I found that some of these ore powders are consistent with the dry powder materials in dry fire extinguishers. Although they are not that powerful, they can also play a role in extinguishing fires.

Although dry powder has been developed, the production cost of fire extinguishers is too high. , at least it was calculated in gold coins, so he put it aside for a while. If it hadn't been for the fire, he would have almost forgotten it.

"Come on, let's go to the lab. Shen Dao

"Tap tap tap......"

After Liu Feng and others went down to the eleventh floor, they took a car and drove to the castle.

Twenty minutes later, Liu Feng and others arrived at the castle's laboratory. Not long after, Mira also arrived at the laboratory with materials.

"Your Majesty, what should I do? Do you need help?"Enri was acting like a curious baby next to her, looking to the left and to the right.

"Need not."Liu Feng chuckled and shook his head.

Liu Feng first took out a glass bottle, which was about the size of ten cans. The mouth of the bottle was not very big and was only about the size of a fist. After putting on gloves and a mask, he began to pour in the glass bottle from the scientific research department. Materials brought back

"Your Majesty, what did you pour in?"Anli asked curiously while holding the pen.

"This is dry powder, the main raw material for fire extinguishing. Liu Feng explained.

The glass jar was filled with dry powder within a short time. Liu Feng sealed the mouth of the glass jar with yellow mud, then handed it to An Li and the others, saying,"Okay, it's done.""

In addition to adding dry powder to the glass bottle, Liu Feng also added a lot of special desiccants.

The desiccant is mainly some stone powder, which is also a newly developed material by the Scientific Research Department.

"Can this put out the fire?"Anli said doubtfully while holding the glass bottle.

"Give it a try. Liu

Feng asked the maid to light a fire in the brazier nearby, and then said to An Li,"Throw it in and use some force.""

"good."Enri nodded and threw it into the brazier.

"boom......"

As the glass bottle shattered, all the dry powder inside ran out, and the fire in the brazier slowly extinguished.

"Your Majesty, the fire is really out."Anli said in surprise

"You guys should try it too. Liu Feng chuckled.

It can be regarded as an alien version of a simple fire extinguisher. Although it is not as useful as the one on Earth, it is still very useful in extinguishing some early stage fires.

"OK, I'm going to give it a try."Enri's voice sounded crisply, and she also put on gloves and a mask.

"I'll come too."Mina said eagerly

"You must remember to be careful not to get too close."Liu Feng warned.

The main reason is that he is afraid of glass fragments being splashed. In the future, when the rubber processing technology is further advanced, it can replace glass bottles to hold dry powder.

"good."Enri and Mina responded in unison.

The girls all followed suit, picking up glass jars one by one, pouring desiccant, etc. into them, and then sealing the mouths of the bottles.

"Your Majesty, we are ready."Anli said cheerfully, holding up the glass jar.

"Give it a try and see if it works."Liu Feng signaled the maid to light the fire.

After the maid finished lighting the fire, Anli and Mina stood in front of the brazier, and then conducted experiments one by one. Each experiment would increase the fire. Liu Feng was to test the maximum How big a fire can it put out?

"Your Majesty, ours can also put out fires."Mina said with a smile.

Liu Feng nodded with satisfaction, and then said,"Anli, let the workshop follow this simple method to produce, mainly supplying to the fire department."

"yes."Enri nodded, and then wrote on her notepad

"Your Majesty, isn't this a waste of glass?"Nicole hesitated.

"Let the scientific research department study whether paper bags can be used instead of glass. Liu Feng said softly

"OK"Anli responded

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