Li Ruoyu made a big show this time, which made the chief engineer Liu Yulong very satisfied, because Li Ruoyu's excellent performance was also winning glory for the construction of a mixing plant in Huhai, which also made him feel very faced. He thought to himself that he had finally not mistaken someone, this Li Ruoyu was indeed a very talented young man, not only surpassed many people in terms of professional knowledge, but even he felt a little incomprehensible, and he was polite and courteous, such a young man is rare to see.

Daniel switched the screen and began to sell their second type of concrete mixing building to the delegation of the Shanghai Construction Engineering Administration. I saw a kind of high-tower concrete mixing building on the projection screen, and Cheng Nantong and others saw this kind of concrete mixing building with a novel layout for the first time, and they were immediately attracted.

Seeing the reactions of the members of the delegation, Daniel said with a smile: "Dear friends, this is a new type of concrete mixing building newly developed by our company. ”

The members of the Huhai Construction Engineering Administration nodded their heads, and they could indeed see that this was different from the mixing building just shown, which was much taller and had several silos on top. Li Ruoyu knew at a glance that this is a kind of high-tower structure of the concrete mixing building, this kind of concrete mixing building does have many unique advantages, very suitable for China's national conditions, in the previous life this kind of concrete mixing building has slowly become the most popular layout type in the concrete mixing building market.

Daniel said proudly: "This is our company's original high-tower concrete mixing building, which is a large-scale concrete mixing building integrating material storage, metering and mixing. The mixing plant can mix various types of concrete, and is suitable for construction projects above medium scale, hydropower, highways, ports, wharves, bridges and other engineering construction, as well as large and medium-sized prefabricated parts factories and commercial concrete production plants. Let's look at the structural diagram, it is divided into three parts, from bottom to top, the first layer is the mixing host, the second layer is the metering system, and the third layer is the material distribution device. In the storage bin above the mixing machine, 3 to 4 specifications and a large number of materials are stored in advance, so that the production cycle is shortened, and the reliability is improved, and the maintenance space is large. In this kind of concrete mixing plant with tower structure, one or more mixing main machines can be installed. Of course, you don't like our vertical shaft mixer, it doesn't matter, we can improve for customers, choose the twin shaft concrete mixer produced by our company as the supporting host. The production control system also adopts microcomputer control and electronic scale measurement, with high measurement accuracy and small error. ”

General Manager Louis sat next to Cheng Nantong, and he smiled at Cheng Nandao: "Director Cheng, I don't know if we are satisfied with this kind of automated production of concrete mixing building?" ”

Cheng Nantong nodded and said: "Yes, this is better than the first second-stage concrete mixing building, and we certainly prefer this type of concrete mixing building in comparison." ”

After speaking, Cheng Nantong said to Li Ruoyu again: "Comrade Xiao Li, how about you look at this high-tower concrete mixing building of Shi Weiying Company?" ”

Li Ruoyu stood up and said slowly: "This layout type is indeed very novel, and this one-stage concrete mixing building does have greater advantages, the top of this mixing building is equipped with three or four aggregate storage bins, which can store three or four kinds of aggregates at the same time, of which two aggregate silos are stored two kinds of stones, and two aggregate silos are stored two kinds of sand. The aggregate is loaded to the underground storage hopper and sent to the respective aggregate storage bin through the flat belt conveyor, inclined belt conveyor and rotary distributor. Two aggregate metering hoppers are under the aggregate storage silo, and the sand and gravel are measured cumulatively separately. In this way, the aggregate can be metered and fed in the fastest time, so that the concrete production rate can be greatly improved. Compared with the two-stage concrete mixing plant, in the case of the same size of the mixing host configuration, its production rate should be 1.5 to 2 times that of the second-stage concrete mixing plant, which is indeed a good choice for us. However, I think it can be improved a little more. ”

Louis was surprised to hear this, and he said "oh" and said, "Mr. Li, do you have a better design?" ”

Li Ruoyu smiled: "Your company's high-tower concrete mixing building is very good in terms of overall design, and I have no doubt about this. It's just that I wish it could be better. For example, I see that your information introduces that its feeding system is manually controlled, and a worker needs to visually check the amount of aggregate in the aggregate bin on the tower to manually load, which is not a problem in itself. However, in the concrete mixing building, dust pollution is still relatively strict, and even if you wear a dust mask, you can't completely avoid this problem. I think it can be designed as a system that automatically monitors the fill level and automatically replenishes the aggregate. It is only necessary to install a reliable level gauge in each aggregate silo, and the computer system can judge the aggregate storage capacity in real time and automatically select the priority order of feeding, which may be more able to meet the production needs than manual control. ”

Listening to Li Ruoyu's opinion, Deputy General Manager Flory slapped his head and suddenly realized: "Yes, why didn't I think of it!" Mr. Li, you are so right, we can change this design immediately, and this is not a problem. You see what else needs to be improved, and if you ask it, we can make improvements to your needs. ”

Li Ruoyu thought for a while and said: "In terms of software, we hope to use concrete production control programs based on Microsoft's Windows 3.0 system or higher systems as much as possible, because this operating system not only provides powerful window control capabilities for program development, but most importantly, it provides a certain amount of network support." ”

Li Ruoyu still remembers the concrete production control system used in the Huhai concrete batching plant in the 90s, when the control software was developed based on the DOS system, which basically only had simple production control functions, and until the end of the 90s, there was no concrete mixing building operated by the mouse. The use of the keyboard control program is not only very inconvenient when entering production tasks and mix ratios, but also the operation interface of concrete production is not good.

Flory nodded and said, "Okay, that's fine, we can make design changes according to your requirements, it's not complicated." ”

Daniel showed the third type of concrete mixing plant, which is a concrete mixing plant with a multi-bucket cantilever blade loader, and the aggregates can be stacked in a loose form around the bucket without the need for compartments. The hoist can rotate 180 degrees around its center to continuously scrape the aggregate, and one or more multi-bucket cantilever loaders can be configured as needed. However, this kind of concrete mixing building is characterized by the use of dragline aggregate and star-shaped concentrated material yard, which has low use cost and occupies less space. The disadvantages are that the operation intensity of the dragline is large, the site layout is not flexible, and the installation foundation workload is large. In the history of the development of concrete batching plants in China, this kind of batching plant is a rare type, so the delegation does not need to consider this kind of mixing building at all.