Zhou Jianhua returned to Tonglin Coal Mine on the fourth day of the first year, and visited Fang Guisheng, the squad leader and Zhuang Minghui, who were off duty, and went to the mine manager's office, and after greeting Director Chen Guodong, he called Yan Donghai, the section chief of the technical department of Changhong Coal Mine, and made an appointment to go to the machine repair factory of the Mining Bureau in the morning to find Wang Shiqing, the section chief of the technical department, to discuss the transformation design plan of the shearer, and then rushed to the Changhong Coal Mine with the design plan and drawings he had completed in the past few days.

Changhong Coal Mine also did not stop production during the Chinese New Year, but some personnel in non-productive functional departments who were not very important during the Chinese New Year were able to take vacations. At this time, only half of the dozen or so people in the Changhong Technique Department were at work, and Zhu Yu and Liu Chang were on vacation.

When Zhou Jianhua walked into the technical department, Yan Donghai was waiting for him in the office. Zhou Jianhua and Yan Donghai and other technicians of the technical department exchanged New Year's greetings, and then followed Yan Donghai on foot to the machine repair factory of the Mining Bureau next to the Changhong Coal Mine.

Zhou Jianhua is the first time to come to the mining machinery repair factory, from the factory gate in, you see a straight road leading to the production area gate 100 meters away, between the two gates, there is a two-story brick concrete office building on the left side of the road, the front of the office building is a row of garages, behind is a large grass and propaganda columns, the right side of the road is the staff residential area, there are several rows of brick and tile bungalows.

Zhou Jianhua followed Yan Donghai into the office building, and the technical department was near the entrance of the office building.

Seeing the two of them coming in, Wang Shiqing immediately stood up and greeted him: "You guys are here?!" It's so fast! Hehe, Happy New Year to Master Xiao Zhou! ”

"Happy New Year, Section Chief Wang!" Zhou Jianhua replied, and nodded with a smile at the other young people who looked up.

Yan Donghai and Wang Shiqing have close contacts, and Yan Donghai often comes to the mining machinery repair factory to understand the technical problems of the equipment repaired by the mining machinery repair factory for the Changhong Coal Mine, and moves around a lot.

"Let me tell you! This little Master Zhou is the comrade Zhou Jianhua who I told you about the chain for repairing the ore in Tonglin Coal Mine and helping us to make our own heat treatment furnace, and he also led the design of the dust-proof transformation project of the shearer. Wang Shiqing glanced around at the young people and introduced.

"Oh! Happy New Year, Master Xiao Zhou! ”

"Hello! Master Xiao Zhou. ”

The faces of several young people immediately became excited and curious, and they all stood up and greeted Zhou Jianhua enthusiastically.

"Huh...... Happy New Year to everyone! Happy New Year! Zhou Jianhua also politely owed to everyone, and responded with a smile:

"I came here today to ask Section Chief Wang and you to review the design of the shearer and see what else can be improved."

Zhou Jianhua said, took out his design plan and drawings from his bag and handed them to Wang Shiqing.

Wang Shiqing spread out the plan and drawings on the table, and said, "Master Xiao Zhou, you are polite, let's just discuss it together." ”

Several young people also gathered around to watch.

Taking advantage of Wang Shiqing's familiarity with the design plan, Zhou Jianhua carefully scanned the room, which was slightly smaller than the technical department of Changhong Coal Mine, but the facilities inside could be described as small and complete.

At one end of the room is five large writing desks stacked against the wall, and at the other end are two wide information cabinets and a product display shelf standing against the wall, and on the large table in the corner of the wall are stacked against the wall all kinds of large, medium and small drawing boards, large wooden or plexiglass triangle boards, T-rulers and mimeograph machines, and next to this countertop there is also a drawing machine. These are the most typical tools and equipment configuration in the technical department of the machinery factory in this era, and after more than ten years, these tools and equipment will gradually be replaced by computers and printers.

Section Chief Wang Shiqing carefully browsed Zhou Jianhua's design plan, and then nodded and praised while watching:

"Not bad! The design ideas and design ideas of this scheme are very clear, the design details of the outer spray and the inner spray are very creative, the functional and mechanical analysis of the structural design is in place, and the empirical value setting of fluid pressure and flow parameters is also very reasonable, this design is perfect! ”

"Oh! This design is so meticulously done! The force analysis of the structural design of the part, even the calculus calculation! A young man exclaimed.

"Well, this picture is also very well drawn, quite the essence of "black and bright"! Someone else praised.

Hearing many praises, Zhou Jianhua smiled slightly and said:

"The design ideas and some empirical data in this are obtained with reference to the situation of other new shearers, including the selection of some existing standard components on the market, which are thanks to the strong support of Section Chief Yan, who provided me with a lot of data to form the current plan so quickly."

"Xiao Zhou! This information has always been there, without your application, where did these results come from? You don't have to be humble! I don't understand the mechanical part, Section Chief Wang said good, that's good! Yan Donghai patted Zhou Jianhua's shoulder and said, and then turned to Wang Shiqing and said:

"In that case, are you going to start trial production right away?"

"Well, almost! However, we still have to post a few more blueprints of Xiao Zhou's drawings before they can be taken to the workshop for trial production, and some of the standard components used in them must also be purchased quickly. Wang Shiqing replied:

In addition, according to Xiao Zhou's design, the water supply mechanism of the internal spray system is the key, and it is necessary to change the drum shaft on the rocker arm of the shearer, and change the drum spindle to a hollow shaft that can be equipped with a water guide pipe...... These take some time to prepare. ”

"Alright! The dustproof transformation of this shearer is a project that we have been planning for a long time, and now we finally have the eyebrows to enter your trial production stage, congratulations! Yan Donghai said happily.

"Section Chief Wang, the temperature chamber of the heat treatment furnace designed and manufactured for you has also been completed, and now in the machine repair factory of Tonglin Commune, the things are a bit big, and it is inconvenient for me to bring them, so you can find a car to pull it over!" Zhou Jianhua said.

"Hmm...... The supply and marketing department is responsible for the procurement of equipment, and I will inform them to pull it over. Oh...... Just right! There are still so many things that we need to purchase in this renovation project, so I'll go and talk to Liu Yang now! Wang Shiqing stood up and went to the supply and marketing department as he spoke.

As soon as Wang Shiqing left, some young people next to him curiously picked up Zhou Jianhua's design plan from the table and took a look, and looked at it excitedly and carefully.

"Master Xiao Zhou, you are amazing! The design of this scheme is so detailed, we can avoid many detours during trial production. One of the young men said.

"Section Chief Wang told us before that you were still a junior high school student, where did you learn all these skills?!" Another young girl next to him asked.

"Oh, I taught myself ......" Zhou Jianhua saluted the "pollution-free lie" again.

"Tsk...... It's incredible......" The young girl shook her head slightly and sighed, staring at Zhou Jianhua with curious eyes, as if she was observing the aliens in "The Visitor".

PS: Thank you for the generous reward of "Dragon City Xiaoyi" again, thank you to all the friends who voted for the recommendation, I saw the amount of power recommended by you, it is too powerful, today's recommendation votes have increased by about a quarter, and it is one step closer to the official recommendation. Please continue to support Lao Niu, thank you!

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