After traveling through time, I led the whole village to become rich!

Zhai Chunyong frowned. It would be easy to make a water mill for pounding paper pulp.

But Zhang Hulan wanted to be more efficient, but he couldn't think of a good way for the time being.

Zhang Hulan said, "Sir, I have an idea. Do you think it can be made?"

Zhai Chunyong nodded and said, "Tell me what you think."

Zhang Hulan explained the principle of the sweet potato powder machine that she knew, but Zhai Chunyong could not understand it at all.

Wu Bangtai's major was not related to the subject, so he couldn't understand it.

Zhai Chunyong also called a few craftsmen with the lowest skills. After listening to Zhang Hulan's story, they also could not understand what Zhang Hulan wanted to make.

Zhang Hulan has said it all, but these people still don't understand.

The thing is not complicated. There is a funnel on the top and a thorn tube for grinding lotus roots on the bottom.

The device for filtering lotus root residue is separate. If it were installed together, the force of the water would probably not be able to remove it.

I don’t know if there is something wrong with my expression or their understanding.

Zhai Chunyong finally said, "Lord Wu, why don't you ask Prime Minister Qin to come? Prime Minister Qin is knowledgeable and well-informed. Perhaps he can understand what she means."

Wu Bangtai glanced at Zhang Hulan, then stood up and said, "Okay, I'll go over and see if Lord Qin is busy now."

Wu Bangtai went to find Qin Bingrong.

Qin Bingrong had nothing to do at the moment, but after hearing Wu Bangtai's purpose, he became interested and wanted to see what Zhang Hulan was going to do.

Qin Bingrong arrived at the Ministry of Industry. Zhang Hulan saluted and then explained the principle of the sweet potato powder machine and her ideas to him.

Qin Bingrong frowned and thought for a moment, then said, "The thorn tube you mentioned should be made of iron. It has many sharp spikes on it, and it uses high-speed rotation to crush the lotus roots."

Zhang Hulan said happily, "Yes, yes, that's exactly what I mean."

Qin Bingrong added, "Then the speed of the thorn tube must be very fast, otherwise the lotus root will become granular after being crushed."

"That's right." Zhang Hulan felt that the Prime Minister was very smart and understood what she meant after listening to it once.

But Qin Bingrong immediately frowned, "But the speed of driving with water power is relatively slow, I don't think it can meet your requirements."

Zhang Hulan quickly said, "Master Qin, you can use large and small gears to connect the waterwheel and the powder pulverizer. This will increase the speed of the powder pulverizer."

Qin Bingrong's eyes lit up, and he slapped his head, "Yes, how could I forget this?

The size and number of teeth on the gears can be used to change the speed and also to reduce the load on the waterwheel."

Qin Bingrong looked at Zhang Hulan in surprise, "You also know about this?"

Zhang Hulan smiled embarrassedly and said, "I don't really understand, I don't really understand..."

"Master Zhang, you are too modest. You must understand." Qin Bingrong said, "I will think about the specific structure later. Once I draw the blueprint, I will show you whether it is correct."

Zhang Hulan bowed and thanked him, "Thank you very much, Master Qin!"

"You're welcome." Qin Bingrong smiled and waved his hand. He didn't stay any longer and went back.

Wu Bangtai and Zhang Hulan also said goodbye and left.

Zhang Hulan went home directly, while Wu Bangtai could not return home until the evening.

But he doesn't need to come tomorrow and can spend the New Year at home peacefully.

When Dong Jianyong was still some distance away from his home, he stopped the carriage.

He turned around and said to Zhang Hulan in the carriage, "Niece, it seems like someone is following our house."

Zhang Hulan lifted the car curtain and asked, "What's going on?"

Dong Jianyong said to the front, "Did you see those two? When we came out, I noticed that they were staring at the door intentionally or unintentionally, and they are still there now."

Zhang Hulan frowned, "We haven't offended anyone in the capital, have we?"

Dong Jianyong said, "Yes."

"Did I offend anyone?" Zhang Hulan thought about it, and then remembered that she had offended someone.

Wang Xingren has one grandmother, and the other is Wang Xingren's aunt and cousin.

Zhang Hulan said, "Let's go back. Just pretend we didn't notice anything."

Dong Jianyong nodded, then drove the carriage towards the door.

Zhang Hulan got off the carriage and walked straight into the door without looking around.

When Zhang Hulan returned home and saw Wang, she asked, "Mom, did anything happen at home? Is everyone here?"

Wang was puzzled and shook her head, "Everyone is home, everything is fine. What's wrong?"

Zhang Hulan said, "Uncle Dong discovered that someone was following us at our doorstep."

Wang was a little worried. "What's going on? Is someone trying to harm us?"

Zhang Hulan didn't know what was going on. This was the capital, not Daping Village. Who knew where those two people came from?

The person was just outside, and some distance away from her home, so she couldn't just go and kidnap him.

Zhang Hubing asked, "Why don't you go tell Xingren?"

Zhang Hulan said, "We're still unclear about the situation right now. We can't burden others with everything."

"What should I do?"

Zhang Hulan said, "Let's wait and see, don't go out for the next two days.

Anyway, Chinese New Year is tomorrow, so let's just celebrate it at home and not go anywhere. We'll see if the people outside are still here tomorrow."

Then she said to Dong Jianyong and Xu Hu, "Uncle Dong, Uncle Xu, please help keep an eye on it."

Dong Jianyong and Xu Hu both nodded, "Don't worry, if it's just those two, there's no need to worry."

Zhang Hulan did not dare to be careless and told everyone in her family to be vigilant.

During dinner, Old Man Zhang and Mrs. Wang were all eating with a heavy heart.

This person was being targeted in an unfamiliar place and felt very worried and uneasy.

Zhang Hulan comforted her, "Dad, Mom, you don't have to worry too much.

I am now more or less an official, and ordinary people wouldn't dare to do anything reckless."

Wang thought, "I'm afraid the other person isn't just an ordinary person..."

After dinner, Dong Jianyong drove the carriage out again. He passed by the place where the two men stayed in the afternoon, but did not see anyone.

He came back and told Zhang Hulan about the situation.

Zhang Hulan didn't let her guard down. "Maybe they're going to eat. They probably won't do anything during the day, but you have to be careful at night."

Dong Jianyong nodded, "Don't worry, we know."

Night fell and it was pitch black outside.

This is not a main street, so there are hardly any people here at night.

Dong Jianyong and Xu Hu were guarding the front door and the back door respectively. They had no plans to sleep tonight.

Late at night, three people, all masked, appeared a few dozen meters away from Zhang Hulan's home.

One of them asked, "Brother, are we going to finish the job inside or take the person away?"

The man who was called "Big Brother" said, "It's the same old routine. First knock the person out, then find the money.

Whether or not to do it depends on the appearance of the woman inside. If she is too ugly, the instinct is to strip her naked and throw her into the street."