Datang: Li Shimin begged me to rebel

"How about the output of pig iron and cement?" Li Ke immediately asked, this is related to the mass production capacity of some of his products, of course he attaches great importance to it.

"Based on the output of ordinary blast furnaces, pig iron is at least one hundred times that of Datang, and the output of a single steelmaking furnace is three hundred to one thousand times that of Datang. The point is whether it is blast furnace ironmaking or open hearth steelmaking , we can all build a large number of blast furnaces and flat furnaces." Tian Meng said in a low voice, he couldn't help but be careless, if this stuff gets out, it is estimated that the aristocratic family will go crazy again, anyway, the eldest grandson's family will go crazy.

Li Ke sneered. Datang's ironmaking technology has improved a lot compared to the Han Dynasty, but what Li Ke showed was blast furnace ironmaking based on modern foundations.Many people here tend to have a misunderstanding, which is blast furnace steelmaking. The reason for this misunderstanding is that later generations have seen the period of crazy blast furnace steelmaking for a period of time.

In fact, the soil blast furnace produces scrap steel, which is basically unusable, and the raw material of the soil blast furnace is not iron ore at all, but scrap iron, so it does not have any operability at all.

On the contrary, ironmaking is feasible. Although the blast furnace ironmaking scientifically designed by later generations is not modern ironmaking, it is already able to do the best under the condition of weak basic conditions.

In addition, people in this era do not yet use coal on a large scale. Li Ke has found several large coal mines, and these coal mines have greatly expanded his iron-making scale.

In addition, most of the coal has already started coking directly. Although the local method of coking consumes a lot, who makes Li Ke have more coal mines?This consumption does not matter, ordinary coal steelmaking is impossible, the temperature is not enough, but coke can.

The method used for steelmaking is the open hearth steelmaking method, that is, the Martin furnace. Because many of Li Ke's current processes still have defects, the open hearth furnace steelmaking cannot be done like the later generations, and scrap steel may be produced. The open-hearth steelmaking method is used because the open-hearth furnace can flexibly adjust the ratio of pig iron and steel scrap.

This allows some of the unqualified scrap steel they smelt to be returned to the furnace and reworked, and it can also improve the efficiency of steelmaking.

In addition, the current open-hearth steelmaking method is not as good as the refined steel produced by Datang's common method of frying steel and forging, but the efficiency of this kind of refined steel is hard to describe. Although Li Ke's open-hearth steelmaking method is inferior, the quantity is large ah!

In fact, after these steels are refined, they still need to be forged to make swords, which means that there is actually no difference between the finished swords in the later stage.

"Several master craftsmen have already begun to prepare to combine the blast furnace and the open hearth furnace. When preparing to smelt pig iron, they will directly enter the open hearth furnace and then make steel, so as to avoid reheating and melting, which will intensify the consumption of coke, which needs to consume funds." Tian Meng said in a low voice.

"Give it to them. Money is not a problem. You can have as much as you want. In addition, tell them that Lu Daqiang will become the first craftsman to be knighted. The reason why Lu Daqiang was chosen is because of the improvement of papermaking and printing techniques. And if these craftsmen improve these technologies, they will be next." Li Ke said directly.

"Yes!" Tian Meng took a deep breath. Knowing the news, he was afraid that those craftsmen would not even sleep.It's crazy that artisans can be knighted!

"Is the hydraulic machine finished?" Li Ke asked another question.

"It's finished. There are still some problems with the sealing. The metal sealing ring you mentioned can be used, but the production requirements are high. It needs to be made and polished by a master blacksmith." Tian Meng said immediately, saying This, Tian Meng's eyes were full of wonder: "Your Highness, why is such a small thing able to drive such a large force? It's unreasonable!"

"This is very reasonable! This is the power of investigating things! These principles actually exist in all things in the world, but we have not discovered them." Li Ke pretended to be forceful.

Many people can't imagine that there is a technology that has no sense of disobedience in ancient times, and the difficulty is not high. This is hydraulic pressure!

Hydraulic technology seems to be very advanced, but in fact it is because the theory of hydraulic pressure was discovered too late, and it was naturally later for humans to use it, but in fact, if you know its theory, you can actually play it in ancient times.

The easiest liquid to find is naturally water, so Li Ke has already played with hydraulic machines in Datang. Of course...in later generations, his so-called hydraulic machines are toys. This really is a toy among toys.

But Li Ke used this thing to work out this theory for them first, and secondly to see if he could make a bigger one for forging large cast iron abrasive tools.

"Let these craftsmen study on these aspects, ask for money for money, and ask for people to give." Li Ke warned.

"Yes!"

"What about the output of cement?" Li Ke asked again.

"It's very big, because Your Highness's request is not high. The amount of cement we produced is not small, which should be enough for us to repair Chang'an City, and the cost is not high." Tian Meng whispered.

Here I have to say that what Li Ke calcines is local method cement, so don't compare it with the cement of later generations. Although it is not bad, especially under the premise that the quality of ancient projects is not high, there is no problem, but It is still a long way from modern cement, at least not for now.

The effect of these local methods of cement cannot be guaranteed to be exactly the same from batch to batch. After all, the iron ore thrown in after calcination, and the waste residue after ironmaking cannot guarantee the purity and proportion of the objects inside. Anyway... the same sentence, Enough is enough.

"The output is large, which means the cost is not high?" Li Ke thought for a while.

"The main cost is the labor cost of mining ore, plus the cost of transportation, but our coal mines and limestone mines are almost all open-pit mines... and for calcination, there is some cost for making furnaces, but under our human resources, in fact That's it." Tian Meng didn't know what to say.

In ancient times, the cost of manpower was actually...too low. In this country where the corvée did not pay, and the money for ordinary work was very little, it was too easy to recruit people during most of the non-busy farming periods!And there are even those who work for free if they manage the food, because the food management means that the people will not consume their own food.

So the labor cost is not high, at least equivalent to the role of cement, it is too low at all.

"Tell the accountants we trained to make false accounts and increase the cost by a hundred times!" Li Keguo broke his mouth and said, nonsense!How can it cost more than 570 million yuan to renovate Chang'an City without increasing the cost? !Oh no, how could it be more than 570 million guan, nonsense, it is more than 770 million guan, and he still has 200 million guan for Zheng's compensation!

"Anyway, let me tell you, account for this cost to me at least 800 million yuan!" Li Ke added.

Tian Meng: "..."

"How much did we actually spend?" Li Ke was curious.

"About 220 million can complete all the renovations, including the roads you requested." Tian Meng gave a budget figure.

After a pause, Tian Meng said again: "And more importantly, you told us that money can make money, and the money from these merchants is directly in our hands, but it is impossible for us to spend money... It can be spent at once, and the initial expenditure may be 10,000+. It is normal for the entire construction period to last for one to two years, or even longer."