After the first batch of residents moved into the Xiamaqiao Farm, the new style of housing, which was centuries ahead of other houses, was completely exposed.

One stone stirs up a thousand waves, and in the recent period of the entire Yingtianfu, when the neighbors meet, they often talk about this Xiamaqiao Farm the most.

"Get off the bridge, build the thatched house in the yard, it doesn't smell bad!"

"You know, the huts there have a porcelain pipe, and when you wash it with water, the dung goes to the ground. The sewer pipes are built very deep, and then there is a septic tank every other section, and it is said that when the adults in the Ministry of Industry are still collecting manure, they can make ignited gas and use it to cook! ”

Even Zhu Di heard the news, and went to the Xiama Bridge to take a look, got into a thatched house, and experimented with it.

Then, then, Zhu Zhanji's trouble came.

Even the emperor doesn't have such enjoyment, the palace is still a toilet, and a bunch of mud legs can enjoy such a life, how can this be done?

However, it was almost impossible to build a sewer in the palace.

Because the location of Miyagi was originally very low, it was originally a lake, and the imperial palace was built based on the earth.

Not to mention where the underground drainage goes, just breaking ground is a difficult project.

Xiamaqiao Farm is a farmland, and the newly built households are separated from each other, and the sewers are also buried in the open air.

Your palace is built so deep that you can even try the sewers of Tibet!

Moreover, porcelain pipes are not easy to fire and expensive, so only the little point of drainage in each household uses porcelain pipes, and other places still use drainage ditches.

As for the use of biogas, because there are no pipelines, it is still a long way to go if it wants to use it on a large scale.

Now it's just a test at the mouth of the pit, and a bunch of adults are covered in feces.

But no one died in this incident, but they were a little confused by the bombing. A group of people, regardless of the stench all over their bodies, are studying what is the reason for the gas coming out of the big manure tank to burn and explode.

For this reason, a group of chemical craftsmen sent by the Ministry of Industry also set up a special team to study the cause.

Most of these craftsmen are Taoist priests and dyers, because in this era, only Taoist priests and dyers study some chemical formulas all day long.

In the era when there were no precision instruments, it was more difficult to study chemistry than physics.

Because physics can still be touched, seen, and know what the principle is.

But chemistry can only rely on a group of people with an experimental spirit to add various ingredients together all day long to see what reaction can be made. If you don't have guidance, if you want to make a result, you mainly rely on luck.

Like various dyes in ancient times, including graphite, gunpowder, and traditional Chinese medicine, they were determined one by one in various experiments.

Although ancient Chinese chemists have always known what it is, they have never lacked the experimental spirit and research and utilization of later chemists.

For example, some craftsmen have now proposed that thousands of septic tanks can be set up all over the capital, with roofs on top and refractory earth below, and then ceramic pipes installed to divide ten gas outlets, so that the residents of the whole Beijing division can use these gases for cooking.

Even Zhu Zhanji felt that it was very feasible when he heard it. There is no way to build a large sewer now, but with cement, it is really feasible to build a biogas digester.

But then I think about it, the cost of this far exceeds the resources provided by biogas, how much manure is needed to provide so much demand!

Nowadays, building a sewer in Jingshi is simply a dream. Not to mention the tools for digging holes, just the dense housing of Jingshi, whose responsibility is it when it is dug down? How to solve the problem of water seepage?

There is a lot of rain in Jingshi, and if it rains heavily for several days in a row, the water in the sewer overflows, won't the entire Jingshi be soaked in dung?

These problems cannot be solved, and building drainage pipes throughout the city is just a joke. In order to solve these problems, it is necessary to solve all the systematic supporting facilities of the entire project.

And it is also difficult to treat sewage now, how to deal with this sewage in the end? Will it cause more pollution?

Before most of the problems of the whole system are solved, it is better to use waste as it is now, transport all the wastewater to the farmland, and use the waste!

Zhu Di was pressured by hundreds of officials and put the responsibility on Zhu Zhanji. But Zhu Zhanji is not an immortal, he doesn't want to be dug up in Tianfu, and finally found that it was finished and could not be built. At that time, he was about to lose his adult.

However, he did not want to pass up this opportunity. The entire Yingtianfu cannot be planned in a unified manner, but it can be transformed into a neighborhood and a neighborhood!

The Xiama Bridge has now become a model project, and it is still possible to replicate it on such a scale. In the areas where officials gather in Chang'an Fang and Taipingfang, they are not as densely populated as civilians, and it is still possible to dig a large sewage discharge sewer.

So recently, Zhu Zhanji has been forcing the people of the Building Water Conservancy Research Institute to let them carry out small-scale project replication planning.

It's just that Zhu Zhanji didn't expect that Wu Zhong, the secretary of the Ministry of Industry, was very interested in this and took the initiative to take over the matter.

He is a well-known architectural expert today, and with him to help preside, Zhu Zhanji is much more relaxed.

Today is the time for the official test of crankshaft die-casting in the forging field, so although it is Xie Jin's birthday, Zhu Zhanji still can't help but go to the forging field to take a look.

The casting of the crankshaft is much more difficult than Zhu Zhanji thought, and the problem of a concentric shaft alone has scrapped several crankshafts.

It was hard to make a standard crankshaft, but the connecting part of the bearing stumped everyone. Zhu Zhanji still has some experience in later generations, and proposed to use a copper sleeve to connect, after a long time, the copper sleeve wears out, and it can be replaced with another one.

After solving the crankshaft part, it is time to connect the four forging hammers to the connecting rod and connect them to the crankshaft. The hammer is held in place with a groove so that it can only go straight up and down, and the power depends on the rotation of the crankshaft.

In this way, a forging press can drive four forging hammers at the same time, two down, two up.

What everyone didn't expect was that because the crankshaft was connected to four forging hammers at the same time, the downward pressure of the forging hammer drove the lifting force, and the power required was much smaller than driving a forging hammer.

However, after the craftsmen of the silver bureau experimented, the cold-forged silver coins always did not meet the requirements, which was mainly due to the uneven force caused by the offset of the mold.

In order to solve this problem, the craftsmen added a fixed table to the outside of the mold, which has three iron pillars with a height of nearly one meter and a half, which are connected to the load-bearing platform below.

The hammer on top has three more holes just through the iron pillar, which solves the offset problem.

After such a transformation, it took another month.

At the casting workshop, yesterday we began casting thin silver plates that are slightly thicker than silver coins, and after they cooled down today, we began large-scale trial production.

Of course, hot forging is easier for silver coins than cold forging, but hot forging is easy to deform, and the requirement for silver coins is that they must be strong.

Moreover, the cold forging has high dimensional accuracy, good surface roughness, good working conditions and high production efficiency. The only disadvantage is that the toughness is relatively low and secondary processing is not possible.

The reason why Zhu Zhanji insisted on cold forging was because of these advantages, and the silver coins produced by cold forging were more accurate and not easy to counterfeit.

It is not easy for those black-hearted businessmen to prevent it, which is conducive to the stability of the currency value.

After Zhu Zhanji arrived, the lifted waterwheel was lowered into the water again. The waterwheel drove the connecting rod, and through the power ratio of the gear, it soon drove the crankshaft to rotate.

Then, there was a loud bang in the forging workshop.

Several craftsmen lifted a silver plate and stuffed it along a groove that was only a little wider than the silver plate, and it was clearly seen that four money eyes had been knocked out of the silver plate.

A craftsman who was waiting next to him immediately removed this dollar fan and replaced it with another one, stuck it into the groove, and then the forging hammer fell again.

Zhu Zhanji looked a little frightened, because as long as he moved slowly, his arm might be smashed.

Zhu Zhanji shook his head and said: "This can't be done, it's too dangerous, this process must be improved." ”

Another craftsman waiting on the side quickly withheld the four silver coins from the money fan, handed the money fan to the craftsman again, and then changed it in a cycle.

The cut out silver coin was placed in a basket next to the press table, and his own craftsman held a plier to clip off the excess burr in the vent hole behind the coin.

The silver coins are handed over to another person, and then the inspection of the silver coins begins, and the qualified silver coins are wrapped in a stack of ten pieces of oiled paper.

Then he gathered sixteen packets and put them into a special wooden box, and a box of silver coins was ten catties.

A forging press has four groups of craftsmen, one group stamps four pieces at a time, and one is sixteen pieces at a time. And the speed of stamping is very fast, almost maintaining a cycle of about ten seconds, and in a quarter of an hour, about ninety times, one hundred and forty-four silver coins can be die-minted.

It's just one die-casting machine, what if there were ten? A day of uninterrupted cycle die casting can produce more than 100,000 silver coins.

Of course, this is only theoretical data, and even the best machine will have times when it is damaged, and there will be times when workers will be tired, and there will be times when things go wrong. But if you basically calculate it, there is no problem at all with one machine a day, arranging several more groups of workers, and producing 5,000 silver coins.

After a quarter of an hour of trial time, the machine stopped, and everyone else was still relaxed, except for the craftsman who changed the Qian Fan, who was tired and out of breath because of the nervousness and frequent loading and unloading of the Qian Fan.

Zhu Zhanji picked up a piece of alloy silver coin with a silver content of only ninety percent and looked at it, at present, due to the limitations of technology, the processing accuracy is certainly not as good as that of later coins. But at least in this era, it is beyond the technology of any other country.

Zhu Zhanji shook his head and said: "Although the forging problem of silver coins has been solved now, there are still many details that need to be solved, and only by solving these safety problems can it be made on a large scale." ”

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