Zhai Chunyong frowned. It would be easy to make a water mill for pounding paper pulp.
But Zhang Hulan wanted to be more efficient, and 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, "Tell me what you think."
Zhang Hulan explained the principles 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, and after listening to Zhang Hulan's story, they also could not understand what Zhang Hulan was going to make.
Zhang Hulan has said everything, but these people still don't understand.
The thing is not complicated. There is a funnel on the top and a thorny tube for grinding lotus roots on the bottom.
The devices for filtering lotus root residue are not together, they are separate. If they were installed together, the force of the water would probably not be able to carry them away.
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, maybe he can understand what she means."
Wu Bangtai looked 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 about 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 bowed and then explained the principle of the sweet potato powder machine and her ideas to him.
Qin Bingrong frowned and thought for a while, then said, "The thorn tube you mentioned should be made of iron. It has many sharp thorns on it, and it uses high-speed rotation to crush the lotus root."
Zhang Hulan said happily: "Yes, yes, that's what I mean."
Qin Bingrong added: "Then the speed of the pricking 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. He understood what she meant after listening to her once.
But Qin Bingrong immediately frowned, "But the speed of driving with water power is relatively slow, I guess it can't meet your requirements."
Zhang Hulan said quickly, "Master Qin, you can use large and small gears to connect the waterwheel and the powder pulverizer, so that the speed of the powder pulverizer can be increased."
Qin Bingrong's eyes lit up, and then 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 lighten 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..."
"Mr. Zhang is too modest. You must understand." Qin Bingrong said, "I will think about the specific structure later. When 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 for long and went back.
Wu Bangtai and Zhang Hulan also said goodbye and left.
Zhang Hulan went home directly, while Wu Bangtai could not go 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, "My 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 people? When we came out, I found that they were staring at the door of our house intentionally or unintentionally, and now they are still there."
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 others are Wang Xingren’s aunt and cousin.
Zhang Hulan said, "Let's go back. Just pretend we didn't find anything."
Dong Jianyong nodded and 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 surprised and shook her head, "Everyone is at home, what's wrong?"
Zhang Hulan said, "Uncle Dong discovered that someone was following us outside our house."
Wang was a little worried, "What's going on? Is someone trying to harm us?"
Zhang Hulan doesn’t know what’s going on now. This is the capital, not Daping Village. Who knows where those two people come from?
The person was just outside, and some distance away from the house, so she couldn't just go and tie him up.
Zhang Hubing asked, "Why don't we go tell Xingren?"
Zhang Hulan said: "We are still unclear about the current situation. We can't trouble others with everything."
"What should we do then?"
Zhang Hulan said, "Let's wait and see, don't go out for the next two days.
Anyway, the New Year is tomorrow, so let's 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 people, 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 more or less an official now, and ordinary people don’t dare to do whatever they want.”
Wang thought, "I'm afraid that the other party is not an ordinary person..."
After dinner, Dong Jianyong drove the carriage out again and passed by the place where the two people stayed in the afternoon, but did not see anyone.
He came back and told Zhang Hulan about the situation.
Zhang Hulan did not let down her guard and said, "Maybe they went to eat. They probably won't do anything during the day, but we must be careful at night."
Dong Jianyong nodded, "Don't worry, we know."
Night fell and it was pitch black outside.
This is not the main street, and there are hardly any people here at night.
Dong Jianyong and Xu Hu were guarding the front door and the back door respectively, and neither of them planned 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 do the job inside or kidnap the person?"
The man who was called "Big Brother" said, "It's the same old rule, knock the person out first, then find the money.
Whether it will be done or not depends on the appearance of the woman. If she is too ugly, they will be stripped naked and thrown into the street. "
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