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What did Liu Mingqi think of?
Of course it is the artifact of coal heating - briquettes!
Many young people have never seen briquettes, but it is a memory they have until the 1990s.
Until the 21st century, many people in small bungalows in northern cities were using briquettes, even people in the capital!
Not to mention how important it was in people¡¯s lives in the 1970s and 1980s.
Basically, there is one saying that every household in all cities is using honeycomb briquettes to boil water and cook rice.
It was not until the 1990s, when natural gas became popular, that briquettes gradually disappeared from cities.
But in many places with poor ventilation, whether in cities or rural areas, briquettes are still used.
A product will not be eliminated for hundreds of years, which shows how convenient and durable briquettes are.
? Originally, briquettes have many advantages.
In addition to the honeycomb shape being conducive to combustion and releasing more heat, it is also easier to store and stack.
It even saves coal raw materials - after all, a little more than 20% of it is clay and quicklime.
The reason for adding clay is to make the shape and strength of the briquettes more stable and prevent them from collapsing when burned.
The more particular ones will add quicklime, in order to precipitate the sulfur in the coal and allow the briquettes to burn to reduce the pungent sulfur dioxide.
At the same time, another benefit of adding quicklime is that it can react chemically with carbon dioxide, and the final burned residue forms stable caso4, which is calcium sulfate.
Many people don¡¯t know about calcium sulfate, but if you add water to it, it becomes raw gypsum. When raw gypsum is heated to between 150 and 170 degrees, it will become hydrated lime.
Both raw gypsum and plaster of paris have many functions and are also one of the important raw materials for making cement.
This purpose is not used in modern times. After all, cement manufacturers will definitely not accept these.
But didn¡¯t Miao Yan want to prepare to rebuild the royal road?
Liu Mingqi could just take out the gypsum and add it to Wu Yeshuang to see what better effect this triple soil would have.
The common people are really happy.
After spending money to buy briquettes, you can also sell the remaining residue to Liu Mingqi. In this way, the briquettes basically cost nothing!
This is Liu Mingqi. If it is replaced by another profiteer, in the name of helping them clean up the garbage, so much gypsum can be used for nothing, and at most it will cost a little manual transportation.
It¡¯s not that Liu Mingqi is so noble.
Only those shameless people can compete with the people at the bottom and make money from them.
¡¡
There are various craftsmen in Prince Yu¡¯s Mansion.
After Liu Mingqi returned, he first mobilized a blacksmith and asked him to build a single-piece briquette pressing machine.
Directly put the viscous embryo mixed with coal, loess, lime and water into the device, then shake the machine handle and press it, and a honeycomb briquette will be formed.
It doesn¡¯t take a minute in total.
Then take the briquettes and put them in a ventilated place, wait for them to air dry naturally, and then you can use them after blowing off the moisture.
Making green briquettes is simpler. After the coal is hammered into powder, several materials are mixed in an appropriate proportion, and then mixed with water to form a viscous consistency.
Proportion Liu Mingqi tried about a dozen methods and felt that the ratio of coal, loess and lime was about 721. This way, the briquettes made by adding water will have the strongest shape, burn more fully, and will not collapse.
Based on the weight of one briquette of two kilograms, the price of coal is only 1.68 cents. Adding lime and worthless loess, the cost price is less than two cents.
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ¡ª¡ªIf the briquettes that are almost burned out are brought into the room, they can dissipate heat for a period of time.
Liu Mingqi is really not evil. He plans to sell a briquette for two cents.
This is not making money.
Because the cost of two cents a piece was calculated based on the market price.
We, Prince Yu¡¯s Mansion, have purchased 50 million jins or 100 million jins of coal. Can the price be compared with the retail price of one cent and two cents of silver?
It¡¯s definitely impossible!
With such a large purchase price,Qi Qingqing said: "No money, just give it as a gift."
"Huh? Why is this?"
"Of course it's not for free, but if you buy a hundred briquettes, you will get one for free." Liu Mingqi said pitifully: "It's so hard for the people, how can I still make money from them in this area? They must do it themselves. They have to be all kinds of things, the effect may not be good, and there will be safety hazards, so why don¡¯t I lose some money and make them all and give them to them.¡±
The emperor and the ministers all nodded in unison, their eyes full of admiration.
"The price of one hundred briquettes is only 200 yuan, and you are giving away such a briquette stove, which is not simple to make, for free. What is this but a kind heart?"
You must know that the briquette stoves to be delivered are not hundreds or thousands, but tens of thousands!
Prince Yu¡¯s Mansion alone will lose at least tens of thousands of taels of silver.
How long will it take for them to make money back with a two-penny briquette?
Zhong Chang was very fond of Liu Mingqi's actions today. Hearing this, he smiled and bowed to the emperor: "Your Majesty, with such a descendant in the clan, why worry that our country will not prosper in the future and create another prosperous Han and Tang Dynasties?"
Emperor Jinghe laughed, pretending to be humble and said: "Mingqi has some abilities, but he is also too impetuous and does not know how to do many things. Dear ladies, please help me to wake up and educate him, so that he can Only then can I grow faster and contribute more to my well-being!"
This is blatantly telling the ministers that Liu Mingqi is my chosen future Zongzheng, so you should take care of her!
All the ministers agreed one after another.
Liu Mingqi didn¡¯t feel satisfied.
Every modern person understands, where is the kindness and compassion?
This is equivalent to the British building railways for other countries. I will build them for you for free, but in the future you can only build trains according to my standards, otherwise they will not be able to run!
What? You can't build a train this size?
By coincidence, only Great Britain in the world can build this kind of train!
"It's cheaper, I'll sell it to you for seven or eight times the price."
How about you tear down all the railways and build another one?
The same principle applies to sending briquette stoves.
My briquette stove can only use briquettes of my size.
In the future, if you buy other briquettes and the size does not fit the briquette stove, won¡¯t you be able to use the same ones?
So in the future, they will be fixed as loyal buyers of our Yuwangfu briquettes.
Even if the briquette stove is broken, you will still buy my briquette stove out of habit!
And what I paid was just some market development costs for the first time!
You say, is it a good deal or not?
¡¡
Note: According to Mr. Gao Shouxian's book "Prices and Wages in the Capital (Replacement) during the Wanli Period of the Ming Dynasty", in the 37th year of Wanli, the price of lime per hundred kilograms was about 0.1 taels of silver, and 1 kilogram was only 1 penny. According to 2 kilograms of briquettes Calculating 10% lime, it only costs 0.2 cents, so it is also very cheap when including coal.
In addition, the briquettes used in our country are about two and a half kilograms, I changed it to 2 kilograms, purely for the convenience of calculation~~~I hope you can understand.
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A big chapter of 6000 words!
Thank you to the leader of the Black-faced Dragon King_888 for the reward! In this way, my debt has exceeded 100 chapters!
But I¡¯m not afraid. I¡¯ll work hard now. If it¡¯s not enough, I¡¯ll continue to pay it back next month!
But for now, I still have to shout out and ask for subscriptions and monthly passes! !
It¡¯s the last day of the month, let¡¯s fight! !
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