I didn't expect Director Yang to come so early, and I waited for a while to see this.

Zhang Yi said with some embarrassment: "Director Yang is really embarrassed, the amount of alcohol is not good, I drank dizzy last night and slept very deeply." ”

Thinking that Zhang Yi staggered back to his room to sleep last night, it seemed that the amount of alcohol was indeed not very good, Director Yang laughed and said: "Young people, you should exercise and exercise your alcohol consumption, and there will be more opportunities to drink in the future." ”

"Come, breakfast is coming, Director Yang and Brother Zhang sit down to eat and chat slowly. At this time, Song Lin brought breakfast out of the kitchen.

Zhang Yi and Liu Rui's treatment is not low, Wei Ming specially instructed Song Lin when he left in the morning, once the two of them got up, they would make breakfast.

Director Yang waved his hand and said, "I've eaten it, you can eat it." ”

Breakfast is good, with eggs, white porridge, glutinous rice chicken, bean skin and soy milk, with nutrition, it looks good.

"Director Yang wants to stop eating something?" Zhang Yi asked, Song Lin had already eaten, Director Yang didn't eat again, he was embarrassed to be alone, and now Liu Rui was still asleep, so it was not easy to wake him up.

"I've eaten it, Brother Zhang eats it slowly, Brother Song's craftsmanship is good. Director Yang said with a smile, obviously he often eats the food made by Song Lin.

Although Director Yang told Zhang Yi to eat slowly, he was about to get angry in his heart.

After leaving the Tianshui office building in a hurry last night, Director Yang couldn't hold it anymore, and he was constantly thinking about whether the technical direction Zhang Yi said was feasible or not.

As soon as I got home, I didn't care about my alcohol, so I quickly opened the information to find selective grinding, but there was not much information that could be found, there was no mature technical report at all, and some of the information only mentioned this method.

The limited data has indeed proved that it can improve the grade of concentrate, and it is possible that this method is really feasible, since Zhang Yi has definitely mentioned this technology, has he really mastered this technology?

Thinking of this, Director Yang couldn't help but want to find Zhang Yi to confirm it, but it was too late to see the time, and Zhang Yi had also drunk a lot of wine, so he thought he should have fallen asleep.

After a difficult night, the sky was still bright, and Director Yang rushed to the Tianshui Mining Office Building to wait for Zhang Yi.

At this time, Director Yang had already eaten, Zhang Yi could only eat alone, there were two people watching next to him, Zhang Yi was not happy to eat, and put down the chopsticks after a few bites.

After eating, Zhang Yi did not hesitate, and directly got into Director Yang's car and went to Weide Mining.

This time in the past, it was to solve the problem of lead-zinc concentrate grade, and it had nothing to do with wolframite, so he didn't bring Liu Rui, Wei Ming went out early in the morning, saying that he was going to explore wolframite first.

Weide Mining is very close to the town, just in the western suburbs of the town, surrounded by many factories, all kinds of mining companies are piled up here, and the car only drove for more than ten minutes to come to the factory of Weide Mining.

Zhang Yi saw the gate of Weide from a long distance, the plaque on the right side of the gate reads "Weide Mining Co., Ltd.", and there is a big stone standing next to it, the stone is engraved with four red characters of Weide Mining, and there is a long wall on both sides of the gate.

In the distance, the chimney is towering, and white smoke is emitted from time to time, and the roar of the machine can be faintly heard, and it can be seen that the factory is busy producing.

A uniformed security guard at the door was checking the documents of the employees entering and leaving, and when he saw Director Yang's car, he obviously knew it, and he didn't dare to slack off, so he let him go directly.

"Dude, this is our technology center. Director Yang's car stopped in front of a small two-story building.

Zhang Yi saw that the technology center building was quite foreign, with a few mango trees planted at the door, and yellow tiles were pasted next to the gate, which were polished brightly, which formed a huge contrast with the dirty environment of the factory.

Zhang Yi walked into the technology center with Director Yang and came directly to the ball mill laboratory, where the improvement of concentrate grade was mainly completed.

Several experimenters in white lab coats in the laboratory were busy, and when they saw Director Yang coming in, they stopped what they were doing to greet Director Yang.

There is a main control room in the laboratory, which is actually an office place, where the data processing and registration made in the laboratory are completed.

Although several experimenters greeted him, Director Yang didn't pay much attention to it, just nodded casually, and took Zhang Yi to the main control room.

At this time, a tall, thin, dark-framed experimenter, looking at Tingsven, in his early 20s, walked over and said respectfully, "Director, you are here." ”

"Well, Xiao Liu, how is the progress of the experiment?

Liu Xiang shook his head helplessly and said: "Director, the index still can't go up, the highest lead concentrate can only reach 58%, and the highest zinc concentrate can only reach 52%, which is still a little far from the index." ”

Director Yang frowned, obviously very dissatisfied with this result, but the experimental plans have been specially discussed by the technology center, and he can't do it, and he can't blame anyone.

The only thing that can be counted on now is Zhang Yi, Director Yang turned his head to Zhang Yi and asked, "Brother Zhang, what do you think about this?"

"Director Yang, do you have any concentrate test reports? By the way, I want to see the concentrate samples. Zhang Yi said.

Zhang Yi is not a god, it is impossible to get the plan out of thin air, he has to see where the problem is, and he has to start from the sample first.

Director Yang instructed Liu Xiang: "You bring all the recent test reports, and take some concentrate samples by the way." ”

After a while, the test report and samples were taken, and Zhang Yi also settled down after reading it for a while, this problem is not too difficult, and he also knows it in his heart at this time.

"Director Yang, in addition to the technical solutions mentioned in the report, have you made any other attempts?" asked Zhang Yi.

Director Yang said with a wry smile: "Our technology center has tried countless methods, whether it is multi-stage grinding, grading grinding, closed-circuit opening methods, but the concentrate grade still does not meet the target. ”

"That's not the right way. Zhang Yi said lightly, "I'll write a plan first, and you can try it according to the plan first and see what the effect is." ”

"Okay, then it's more troublesome Brother Zhang. Director Yang said happily.

When Zhang Yi wrote the technical plan, Liu Xiang, who was standing next to him, was extremely shocked.

He noticed it when Director Yang brought Zhang Yi in, and he thought that Director Yang was just bringing someone over to have a look, but he didn't expect that Director Yang had been asking Zhang Yi how to solve this experiment later.

No one knows the difficulty of this experiment better than him, even Director Yang doesn't know much about him, because he is the one who soaks in the laboratory every day, plans the experimental plan in a unified manner, and keeps an eye on the experimental instruments.

This experimental problem made him rack his brains, and he tried countless schemes to no avail, and now Director Yang actually brought back a young man who was much younger than him and looked like a student in school, and wanted to solve this experiment, how could this be possible?