Li Ruoyu continued: "In addition, the concrete mixing building provided by your company, the capacity of the mixing host is small, and we need at least 2000L or more mixing host, which is considering that the market demand for ready-mixed concrete in Huhai City in the next few years has a large growth, and the production speed of the small-capacity mixing host is slow, which is difficult to meet the needs of the future." In addition, the mixing host of this kind of mixing building is a vertical shaft type, which seems to be a bit inconsistent with our needs. ”

Flory, deputy general manager of Shi Weiying's concrete machinery division, said: "Oh, why does Mr. Li think so? Vertical shaft concrete mixer is our best concrete mixer, whether in Europe or in Japan, it has been highly recognized by users. ”

Flory is the deputy general manager in charge of technology and production, so his understanding and mastery of concrete machinery is the most professional among several executives, he feels that no matter how you look at it, vertical shaft concrete mixer is the best concrete mixer structural form, and even he has reached the point where he has a preference for vertical shaft concrete mixer.

Li Ruoyu smiled: "Indeed, the vertical shaft concrete mixer has some advantages of its own, such as simple structure and high mixing uniformity. But in comparison, the twin-shaft compulsory mixer is our first choice. From the structural point of view, the twin-shaft mixer is more complex than the single-shaft mixer, but it has less wear, good mixing quality and high productivity, and the twin-shaft mixer has obvious advantages over the vertical shaft and single-shaft mixer. The diameter of its mixing drum is half smaller than that of the vertical shaft type with the same capacity, and the speed of the stirring shaft is basically the same as that of the vertical shaft type, but the speed of the blades is half smaller than that of the vertical shaft type, so the blades and liners wear less, the service life is long, and the material is not easy to segregate. This is all from the actual situation of our ready mixed concrete in Shanghai, in our country, the raw materials are much worse than Europe and Japan in terms of quality, so our ready mixed concrete is usually large fluidity concrete, and the use of twin shaft compulsory mixer will be much better than vertical shaft concrete mixer. ”

Florey listened to Li Ruoyu's explanation and didn't think so, because he didn't know much about China's ready-mixed concrete, and didn't know that in China, ready-mixed concrete is the kind of concrete with a slump of more than 140 mm.

Ferrory still hoped that the Chinese customers would accept his point of view, and he spread his hands and said: "Oh no, Mr. Li, don't you think that the U-shaped tank bottom of the horizontal shaft type, especially the double-shaft compulsory mixer, is prone to mixing dead angles, which leads to excessive load on the two shafts and breaks." In addition, they welded the wall panels at both ends to the casing, which made it inconvenient and difficult to repair when the shaft or blades were damaged. The structure of the twin shaft concrete mixer is too complex, and it is not convenient to use and maintain, I build yì you still use the vertical shaft concrete mixer better, our company has rich experience in this regard, and can make certain improvements according to customer requirements. ”

Li Ruoyu didn't expect this Flory to be so persistent, it seemed that he just wanted to sell what he liked to customers, shook his head, Li Ruoyu said again: "Mr. Flory, the twin-shaft compulsory mixer can completely make the bottom of the tank into an ω shape to prevent the mixing dead angle, and install a lining plate in the cylinder." The two sides are then welded with steel plates to make a machine groove, and the angle steel is welded on both sides of the groove to fix the cover, and the bottom of the groove machine is welded with a supporting pad to support the groove body. The wall panels at both ends of the trough are not welded to the casing, but are connected with the casing through guò bolts, the purpose of this is to facilitate the lifting of the damaged shaft during maintenance, save the trouble of removing the blades, increase the maintenance space, reduce the workload, and also reduce the diameter of the shaft holes at both ends, so as to facilitate sealing and leakage. What do you think? ”

Flory's eyes widened and said: "Mr. Li, although what you said seems to be very reasonable, do you know that the vertical shaft concrete mixer not only has a simple structure, small wear, simple use and maintenance, but also has the advantages of low mixing power consumption. ”

Li Ruoyu smiled bitterly, but he didn't expect this Flory to refuse to give up, so he had to continue to analyze: "Mr. Flory said very well, the vertical shaft concrete mixer has these advantages. But what we need is a mixing equipment that can mix high-quality concrete, and the vertical shaft concrete mixer is not suitable for China's national conditions. When the double-shaft compulsory mixer is working, the stirring shaft drives the stirring blades to rotate, forcing the material to produce forced stirring effects such as shearing, squeezing, tumbling and kneading according to the predetermined trajectory, so that the material can be evenly stirred in the vigorous relative movement. As long as the structure and surface shape of the mixing blade are reasonably designed, the mixing quality can be improved, the mixing resistance can be reduced and the power consumption can be reduced. In addition, in terms of wear, as long as the concrete mixer designer can choose the most suitable lining material and structural design according to the working condition of the lining, the wear can be minimized. The material of the lining plate should have high hardness, and at the same time, it should also have high strength, which should not only have good wear resistance, but also prevent the fracture and breakage of the lining plate, and at the same time have the ability to resist impact. ”

Hearing Li Ruoyu's detailed answer, Florey was also shocked, he didn't expect that the other party could understand the various structures and advantages and disadvantages of the current concrete mixer so well, and now he had to give up his wishful thinking. Although he liked the vertical shaft concrete mixer very much, the customer was unwilling to accept it, and the reason the customer told him made him feel that he really had no way to convince him, so Flory had to helplessly say: "Okay, Mr. Li!" I am convinced, I didn't expect you to have such a deep understanding of concrete mixing plant. Let Daniel introduce you to the second type of automated concrete mixing plant, maybe this model will be what you need. ”

Everyone was shocked by Li Ruoyu, although the members of the Huhai Construction Engineering Administration already knew last night that Li Ruoyu was very proficient in concrete mixing buildings, but they did not expect that he would be able to refute the deputy general manager of the concrete machinery division of the powerful Shi Weiying Company. What a cow word! Now Cheng Nantong is completely relieved, with Li Ruoyu here, he will definitely be able to buy back the best automated concrete mixing building this time.

Anna couldn't help but be attracted by Li Ruoyu's eloquent demeanor, she didn't expect that Flory, who has always been professional and rigorous logic, was defeated, this young man is indeed unusual, the more Anna looks at it, the more she feels appreciation, and her blue eyes are also brilliant.