"Xiaobin, don't you have any news over there~?"

New Workshop for Curiosity Pavilion.

Li Zexuan looked at Fu Bo and asked.

Speaking of which, he is not responsible at all, a few days ago, after he handed over the drawings of the ironworks to Fu Bo, he basically didn't ask much anymore, not because he was lazy, but because of the bean sprouts and the affairs of the house in Chang'an recently, which involved a large part of his energy.

"Young master, that kid sent a message back two days ago, saying that he had found the white clay mine you wanted in Shuozhou, and he should send a batch back in the next two days!"

Fauber replied with a smile.

He had received the news from Fubin before, and he wanted to tell Li Zexuan, but he had also heard about the recent ups and downs in Chang'an City, so he dispelled this idea and told Li Zexuan when he was free.

Li Zexuan was overjoyed when he heard this, and secretly glad that his memory was really not wrong, but he was a little sorry for his old classmates, who dug up the mines in other people's homes more than a thousand years in advance!

"It should be regarded as to continue the glory of the Chinese nation in the world, and the aluminum ore dedicated by your family is very meaningful!"

Li Zexuan muttered in his heart, and then said to Fu Bo: "Well, after the white clay mine over there in Shuozhou is transported back, this side will start firing the kind of refractory cement I told Fu Bo before!" If you have any questions, feel free to send someone to call me! ”

The so-called refractory cement can be divided into aluminate refractory cement, low-calcium aluminate refractory cement, calcium-magnesium aluminate cement and dolomite refractory cement according to different compositions. At this stage, the easiest to fire is aluminate cement, which is mainly made of bauxite and limestone as raw materials, calcined to obtain calcium aluminate as the main component, alumina content of about 50% of the clinker, and then ground into a hydraulic cementitious material is refractory cement.

The refractory temperature of refractory cement is generally above 1,580 degrees Celsius, so in modern society, refractory cement is often used in some high-temperature kilns as refractory lining and some high-temperature projects that have been eroded by the atmosphere and rain for a long time.

Fauber nodded in response: "No problem~!" ”

When he asked Li Zexuan to get the drawings before, Li Zexuan had already told him the formula and production method of refractory cement, and the workshop was now different from the past, with a lot of technical accumulation, so Fu Bo felt that it should not be difficult to fire refractory cement!

Li Zexuan took out two drawings from his arms, handed them to Fu Bo, and said: "Fu Bo, I want to make two things recently, one is a furnace, and the other is a mold, the structure is not very complicated, you can just ask the craftsmen below to take the time to help me forge two!" ”

Fu Bo took it suspiciously, and after a general glance, he understood what Li Zexuan wanted to make looked like, and he couldn't help but ask: "Young master, this stove is very exquisite, especially the ventilation performance of this thing, which is better than the stove we use now!" It's just that this mold, the things made from this mold, aren't they like hornet's nests full of holes? What does the young master want to do with it~? ”

Li Zexuan said with a smile: "Fubo, what do you think of using it to shape pulverized coal~?" ”

The coal mold he provided to Fuber was the modern kind of connecting rod stamping manual honeycomb coal mold. This thing may not have been seen by many children in the city, but Li Zexuan in his previous life not only saw it, but also used it. When he was a child, his family was poor, and his father tried all kinds of ways to earn money in order to provide for him and his sisters to study, not to mention farming, and the rest of the ways include fishing, selling dried fish, helping others build houses, and even going to the street to sell art when the farm is not working.

When he was six years old, his father bought two truckloads of raw coal, the size of a football, probably freshly dug out of the mine. After that, the family began to make money by making honeycomb coal.

He was quite sensible at that time, and he would help his parents make honeycomb coal every day after school. The baby in the countryside is not so squeamish, and the handmade honeycomb coal molds are about to catch up with his height, but he also knew at that time that his family was poor, and if he didn't work, he might not even be able to go to school, so although his hands were blistered, he still insisted on doing it.

Later, after two years of making honeycomb coal, the family did not continue to make it because the manual efficiency was too low and they could not make much money.

But it is precisely because of that experience that Li Zexuan has an unforgettable familiarity with handmade honeycomb coal molds, and he can even draw them with his eyes closed.

To put it simply, this thing is a bit similar to the principle of a syringe without a needle, where ground coal mixed with yellow mud is "stuffed" into a mold, tamped, and then pushed out by a "piston" and dried to form.

It's just that the "piston" at the end of the push rod of the honeycomb coal mold is very different from the piston of the syringe. Its "piston" is composed of two parts, one part is about 12 iron pillars of equal diameter and height, and the other part is an iron plate with the same number, diameter and distribution position as the iron pillars.

The iron sheet with holes is nested on the iron column, and the push-pull connecting rod is connected with the iron sheet, so that when the "slime" is "stuffed" into the mold, the iron sheet will move upward with the connecting rod, and because of the existence of the circular iron column, there will be through holes in the "slime", and finally when the "slime" in the mold is pushed out through the connecting rod, you can get the honeycomb-shaped coal block!

The principle is really simple!

Fu Bo is also an expert in engineering, he frowned when he heard this, thought about it, and finally shook his head and said: "The old man understands that the young master wants to make the shape of the briquettes into a honeycomb shape, so that the coals will burn more easily!" That's a great way to do it! But has the young master ever thought that even if the coal blocks are ground into pulverized coal, they are not sticky to each other, and it is difficult to stick together~! ”

Li Zexuan gave a thumbs up and exclaimed: "Fu Bo has good eyesight!" Hehe! It's true that this pulverized coal doesn't have any stickiness as you said, but we can add something sticky to it to make it stick! In this way, it is possible to create a honeycomb-shaped lump of coal! With the stove on another piece of paper, Fubo, do you see if it will be particularly convenient for us to boil water in the future~? ”

Fu Bo couldn't help but be stunned, he realized that the two drawings handed over to him by Li Zexuan were actually used in conjunction with each other, he thought about it in his mind, and after a while, he said with a look of admiration: "Young Master is really talented!" With such a whimsical idea, even if the old man is forty years younger, I am afraid it will not be as good as in case~! ”

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First update!

(End of chapter)