According to Qi Heng's words, although Mu Ying and the divine battalion and secret guards led by Zheng Guangzu are not as numerous as the army generals, they can be compared with Han Qin and Chen Guang in terms of position, and they can be regarded as the same level.

And with Han Qin, Chen Guang, and even including Mu Ying, the power of the secret guards he led is actually greater.

In the future, as it grows, it will definitely break away from the sequence of the army.

Now when Zhu Yuanzhang goes out to fight, there are only three people in the entire Huanggang City who can surpass him Zheng Guangzu.

Qi Heng and Shi Caiying, Shen Wansan.

Needless to say, Qi Heng was directly under his control whether it was the army led by Han Qin and Chen Guang, the Armaments Department under the command of Shen Wansan, or the county government under the command of Shi Caiying.

And Shi Caiying is the number one leader of the county government, and Shen Wansan is the head of the Armaments Department, which is half a level higher than him.

However, with the nature of the secret guard, after the scale is larger, it is impossible to belong to the army sequence, and at that time, his Zheng Guangzu's status will be the same as Shen Wansan and Shi Caiying.

In a short period of time, he has grown from a soldier under Han Qin to keep pace with Han Qin, and even surpass him in the near future.

This is naturally because of the opportunity to show his long-term ability.

But the most important thing is Qi Heng's vision of knowing and employing people.

In this regard, Zheng Guangzu's heart is extremely grateful at this moment.

His abilities, not even discovered by himself.

But under Qi Heng's casual arrangement, it was infinitely explored.

Thinking of this, Zheng Guangzu tightened the package in his arms, and a smile appeared on his face.

Huanggang City, City Gate.

After verifying their identities, Zheng Guangzu and others successfully entered the city.

As the city gate opened and walked in, Zheng Guangzu saw Qi Heng in the city at first glance.

Zheng Guangzu didn't dare to delay, immediately turned over and dismounted, came to Qi Heng's face, and respectfully saluted: "My lord! ”

Qi Heng nodded with a smile, patted his shoulder with approval on his face, and said, "You kid has given me too many surprises." ”

Zheng Guangzu understood that Qi Heng was praising him, and said with a smile: "It's all planned by adults." ”

Qi Heng smiled loudly and said, "Don't tout me, get up." ”

As Zheng Guangzu got up, he hurriedly handed the package in his arms into Qi Heng's hand, and said, "My lord, this is the treasure I got by chance in Haozhou City, thinking about it, it is more appropriate to give it to the adult." ”

Qi Heng opened the package in confusion.

A piece of soft armor catches your eye.

This thing is not an unusual thing in the TV series of the previous life, so Qi Heng can roughly guess it.

At this time, Zheng Guangzu also said: "I saw that the texture of this soft armor was not bad, so I brought it back." ”

Feeling Zheng Guangzu's sincere gaze, Qi Heng understood that this was Zheng Guangzu's desire to express his gratitude for reusing him.

Qi Heng, who figured out this, did not refuse, and directly asked the guards behind him to put it away.

"Yes, I'll take it."

As he spoke, Qi Heng waved his hand and said, "Let's go, after a busy night, I shouldn't have eaten with my brothers, right?" I'm ready to treat you to it. ”

Under the leadership of Qi Heng, Zheng Guangzu and his brothers came to the hall in the backyard of the county government together.

At this time, a table of good food and wine was already set on the table in the hall.

After a brief polite moment, Qi Heng left alone under the pretext of leaving time to Zheng Guangzu and them, after all, with him, these people were destined not to drink too happily.

After leaving, Qi Heng returned to the house to sleep.

Early the next morning, I came to the Armaments Division early.

According to the discussion in the previous days, the idea of a simple mill powered by steam has been completed, and the casting stage is underway in the past two days.

So Qi Heng comes here every day to star.

Walking into the Armaments Division, the craftsmen in the foundry seemed to be experimenting with something.

Shen Wansan was also among them, and it seemed that he hadn't slept all night.

Seeing Qi Heng walk in, Shen Wansan hurriedly saluted, and then said with a little excitement: "My lord, the prototype has come out, and now it is being tested, if there is no problem after verification, you can start using it." ”

At this time, Qi Heng also saw the finished instruments cast in the field.

Actually, it's very simple.

It is to use water vapor as the driving force, with the iron chain and gear similar to the bicycle chain as the link, to produce an upward rotation force, lift a large volume of iron, and finally use the piston device of the water vapor plug door to produce the effect of exhaust pressure reduction, resulting in the free fall of the iron after the loss of force, and use the impact force generated by the middle fall to achieve the effect of gravel and grinding.

As the plug door descends, the internal water vapor pressure increases, pushing the plug door upwards again, and the cycle repeats.

Such a simple device, although the speed efficiency is not at all comparable to the machinery of the previous life, is better than the automatic.

Only a small amount of labor is required to collect the finished cement soil, refill it with limestone, and heat it over a fire.

However, the specific milling efficiency depends on the next test.

With the continuous heating of the boiler in the field, water vapor is generated in the fully enclosed space, and the internal pressure increases, pushing the plug door to generate power.

Drive the gears upwards through the conveyor hub until the plug door crosses the piston port, lowers the pressure and falls.

Then repeat again.

In the middle, Qi Heng uses the method of mouth number to time, roughly calculated, about 20 seconds can complete a lifting and descending.

A batch of limestone is ground into a usable standard cement powder, which requires 12 chiselings.

That's 240 seconds, or four minutes.

Counting the time of intermediate reclaiming and refeeding, the production time of a batch of cement powder is five minutes!

And each output, it is necessary to take into account the size of the rolling space.

According to the size of the tested iron block, almost one sack of cement powder can be produced at a time.

Combined with clay and iron ore powder firing, one sack of cement powder can produce two sacks of finished cement.

The proportion of cement in concrete, according to the conventional C20 concrete model, is about 14%.

This kind of production is already very impressive.

In addition, this simple mill can also be added.

The key is that it can be manufactured 24 hours a day.

The efficiency is still very good.

Of course, this simple device is not at all comparable to modern ones.

Modern pulverizers have extremely strict standards for the particle size of cement powder, and the cement powder obtained by heavy extrusion has an insurmountable gap with modern devices in this regard.

And it is certain that there will be damage in operation afterwards.

However, these are completely enough for today's Qi Heng.

At the same time, this is the first time they have successfully used water vapor conversion power.

It's a rare experience.

They gained experience in making steam engines, trains, and boats in the future.