"Cut~, I haven't seen it, who told you that charcoal can only be used to burn cement?" Li Su said with a disdainful face, in later generations, coal is known as industrial food, whether in people's livelihood or industry, is one of the most widely used energy sources, compared with charcoal and the most primitive firewood, its advantages can not be explained in a sentence or two.

"Oh? Listening to the meaning of Rokuro's words, you seem to know other uses of this coal, hurry up and tell everyone! Yan Bei was also very concerned about making money, and as soon as he heard Li Su's words, he immediately asked first. The others also looked at Li Su with a curious expression, they all knew that Li Su knew a lot about these messy things, so they didn't have the slightest doubt about Li Su's words.

"Hehe, this is simple, I have already prepared the top products in Chapter 78 to open up the market, you wait a while!" Li Su said and gave an order to the outside, and after a while, a few servants carried in two more things. One of them was gray, about the same as coal, but lighter in color, and the other was a stove with a yellowish flame rising high.

In the puzzled eyes of everyone, Li Su stepped forward, first picked up the tongs by the stove, stretched into the stove and picked up a cylindrical shape, and there were many holes on it, and after turning around in front of everyone's eyes, he said: "Everyone, please see, this is made by me with crushed charcoal and clay, I call it honeycomb coal or briquettes, a piece of such honeycomb coal, is enough for an ordinary family to cook a meal, and when not in use, the air intake hole below can be plugged tightly to slow down the combustion rate of honeycomb coal, It won't go out overnight, and you don't even need to change it for new honeycomb coal, you can cook a meal, which is definitely much stronger than using charcoal and firewood......"

Li Su explained the role of honeycomb coal while showing everyone the use of briquette stove, this thing has no technical content at all, so as long as you are not stupid or stupid, you can immediately understand how to go back to Chapter 78 to open up the market of the leading product.

"Rokuro, you...... Are you going to have everyone cook with coal? Li Jingheng stepped forward to look at the burning briquettes in Li Su's hand, and said with a look of surprise, he was really shocked that Li Su dared to think and dare to do, if everyone really used this honeycomb coal, then they really didn't have to worry about the problem that the charcoal could not be sold.

"Of course, although everyone now uses firewood or charcoal to cook and boil water, but compared to them, honeycomb coal is cleaner and more efficient, and the price is not high, it may be more expensive than firewood, but it is definitely cheaper than charcoal, and compared with honeycomb coal and firewood at the same price, it is definitely honeycomb coal that is more resistant to burning, and it is more cost-effective to use honeycomb coal, so we just need to spend some effort to do publicity and promotion, and we will definitely make everyone switch to our charcoal as fuel."

Li Su smiled very proudly, when he first started digging coal, he already wanted to get honeycomb coal, but because the output of the mine was not large at that time, it was a little difficult to supply only a few cement plants, and even if he did, there was no supply of raw materials. Until now, in order to repay the help of his brothers, he decided to engage in the coal industry, and as the leading product to open up the market, honeycomb coal is of course the first to be made.

"Rokuro deserves to be Rokuro, and he solved this problem at once!" Yan Bei circled around the coal stove a few times, and then said with admiration, and the others also echoed one after another, and they were amazed around the coal stove.

"Liulang, you're done with honeycomb coal, but what is this thing?" Cheng Huailiang picked up the gray things next to him, and after carefully observing them for a long time, he didn't figure out what they were, but he just felt that it was very similar to the charcoal.

"Oh, this thing is called coke, it is made of coal after a certain treatment, you don't look at it as inconspicuous, but it is a good material for ironmaking, and not all coal can be used to make coke, in my few coal mines, at most less than a fifth of the coal can be coking, so its price is much more expensive than coal." Li Su said.

Datang's implementation of the government-private parallel mining and smelting industry, does not prohibit private mining and smelting, so the private mining industry has developed rapidly, although it can not be compared with the powerful government-run mining and metallurgical industry, but it is much better than the previous dynasty, and the development of private mining management industry has also increased the demand for fuel for smelting.

The use of coal as a fuel for ironmaking, this method has appeared as early as the Han Dynasty, but the coal contains sulfur and other sundries, making the iron too brittle, this kind of iron is not very useful, so the use of coal to make iron is not common in the Tang Dynasty, until two hundred years later in the Northern Song Dynasty, because of technological progress, the use of coal to make iron began to form a certain scale, and until the Southern Song Dynasty, because of the invention of the method of coking with coal, so that the iron smelting with coke became the mainstream, and even until more than a thousand years later, it is still used. Of course, there are also people who are lucky enough to find natural coke, which can be directly used to make iron, but there is not much naturally formed coke, which is far from enough for smelting.

Li Su advanced the appearance of coke by hundreds of years, and as long as the current smelting technology is slightly improved, it will definitely make Datang's steel output increase exponentially, and steel production is a sign of a country's strength, so Li Su's move seems ordinary, but the significance of it will definitely make the entire Datang earth-shaking changes. It's a pity that none of the people here can see the meaning of the appearance of coke, so when they heard that this thing can be used to make iron, they are only happy that the charcoal has one more use, and the charcoal they produce in the future will also have one more market, and the others don't think much about it at all.

Li Su has long known that these guys who don't learn and don't know how to learn will definitely not understand the importance of coke, so he is not surprised by their reaction, of course, he will not waste saliva to explain the meaning to this group of gentlemen, it doesn't matter if they don't understand, as long as the people who use it can understand, he has already asked people to send the coke produced in his mine to the Ministry of Industry, and also sent a 'generous gift' to that uncle Shangshu, I heard that he has already arranged for someone to try it, presumably there will be results after a while.

The Coal Industry Association had been formed, and the market for the coal had been found, and now that everything was ready, someone was sent to find out the coal mines. At the moment, everyone no longer drank any wine, everyone simply sat down and distributed the people or money that each family wanted to give, roughly each person's share was about the same, even Li Xiaojie, who had always been poor, was not willing to give up such a good opportunity, and cheekily gathered his share with Li Su, Li Yong and Li Jingheng, his debts have been paid off, and the income of the winery is so good, although the money is now in his wife's place, but he can seize such a good opportunity to make money, presumably Princess Qinghe will definitely take out the money obediently.

On the second day after the matter was agreed, as soon as the gate of Chang'an City was opened, a team of people and horses immediately left the city, and roughly calculated, there were hundreds of people, and everyone was ready to go. Among the members of this team, Cheng Huailiang, Li Jingye, Li Jingheng, Qin Huaiyu, and Yan Bei were all there, and the six deacons of the Coal Industry Association, which was established only yesterday, did not show up for Li Su.

After leaving the city gate, their team walked in the northeast direction for a while, and then stopped, Cheng Huailiang and they called several leaders of this team over, and then asked in a deep voice: "Can you write down all the things I told you yesterday?" ”

"Don't worry, my subordinates have written it down, we will definitely live up to Childe's trust and try to find as many carboniferous mines as possible." One of the team leaders stood up and said that they were the henchmen and servants sent by Cheng Huailiang and others, but now they belong to the prospecting team under the Carboniferous Association, and they are responsible for going to the area set aside by Li Su to find ore, and they all carry the warrants of each province, and they can mobilize the local manpower and relations of each province at any time.

"Well, remember the words of King Liang, you must inquire more and observe more, and try not to leak the news, if you find a carboniferous mine, come back as soon as possible to report, you are no longer servants in the provinces, but belong to the prospecting team under the Datang Coal Industry Association, the promise that the association gave you is not a joke, if you find a carboniferous mine with mining value, you will immediately have a hundred yuan of funds to take, even if it is for yourself, you must not be lazy!" Qin Huaiyu also commanded, the first time he did this kind of thing, he was inevitably a little uneasy in his heart, so he couldn't help but tell him repeatedly.

"Deacon Qin, please rest assured, his subordinates are also from various mansions, and they also have wives and children at home, even if they are not for themselves, they will desperately find a few mines for the sake of their families!" A team leader with a very good eye immediately said that he no longer called Qin Huaiyu his son, but directly called Qin Huaiyu's position in the association, which made Qin Huaiyu very satisfied after hearing it.

Next, Li Jingye and the others also stepped forward to say a few words, and the meaning was similar, anyway, they asked them to find as many mines as possible, and then they personally toasted the first batch of subordinates of these carboniferous associations with a bowl of parting wine, which allowed them to get on the horse and hurry.

Looking at the prospecting team that left with a horse, Cheng Huailiang and the others breathed a sigh, since yesterday they made the decision to find ore, they have been busy now, and they didn't even sleep last night, and the five people are all bloodshot now.

"Hmm~, it's finally over, let's go back and catch up on sleep!" Li Jingye stretched his waist and yawned, the spirit of the strong beating just now immediately collapsed, and the tiredness on his face could no longer be hidden, and he said weakly.

"Hmm~" Yawning is contagious, Yan Bei also stretched his waist immediately, and then smiled: "We can rest, but Liuyang is miserable, he was called by his mother early in the morning, and I don't know what happened?" ”

"It's not just Liuyang, Brother Ke also wanted to come and see it today, but he was also called by Concubine Yang, as if they were asking their brother to visit someone." Qin Huaiyu also said with a tired expression. When the Coal Industry Association was established yesterday, Li Ke was unable to participate because of something, and when he heard the news today, he immediately ran to Qin Huaiyu, who was closest to his house, to understand the situation.

"Hehe, I know about this!" When it comes to being well-informed, no one here can compare to Cheng Huailiang, "The person they went to visit was not simple, and if Liuyang went, a very interesting thing would definitely happen." When Cheng Huailiang said this, the smile on his face looked very weird.

ps:Because I have to accompany my wife to take the exam tomorrow.,I can come back the day after tomorrow.,So tomorrow it's updated in the afternoon.,The old fish didn't save the manuscript.,It's all in the current code.,So I don't know how much I can code tomorrow.,Try to code two chapters.,Can't let you down the book friends who support the old fish.!!