The textile industry has been prosperous for thousands of years, and promoting the development of textile equipment to intelligence and high-end is an important engine to accelerate the transformation and upgrading of traditional industries. Recently, the new construction general contracting project of Wuxi VanderWiel Machinery Co., Ltd., undertaken by China Construction Installation Suzhou and Hangzhou Company, was successfully completed.
As a major project in Jiangsu Province and one of the first batch of intelligent manufacturing enterprises to settle in the Sino-European High-end Equipment Industrial Park in Xishan Economic and Technological Development Zone, the new plant is about 67,000 square meters, and is committed to building a modern factory, R&D and manufacturing base with high-standard automation and world-class advanced technology. Focusing on the R&D and manufacturing of textile machinery, after the project reaches full production, it will produce more than 5.6 million weft deposits, jacquard machines, tufting machines, double twisting machines, etc., with an estimated annual sales of more than 2.5 billion yuan.
There is a way to add and subtract the "steel skeleton"
In order to quickly and accurately complete the construction task, the project team uses the processing plant segmented production and on-site hoisting method, supporting the special construction technology of the long-span steel structure, optimizing the combined hoisting method of "tower crane and truck crane", and efficiently promoting the steel structure hoisting operation. The two optimal entrances and exits have successfully reduced the number of transportation vehicles by 30%, solved the difficulty of narrow construction work surface, and scientifically coordinated the entry of large steel structure components.
Among them, the C building production plant is a double-layer structure, the maximum component weight of nearly 3 tons, the large tonnage crane can not drive into the second floor for lifting, how to send a piece of "steel and iron bones" to a height of 24 meters? Through fine analysis, the component nodes are increased, and the original overweight components are divided into smaller units weighing about 1.5 tons without affecting the overall performance of the structure, which effectively disperses the concentrated stress of the main components, and reduces the dependence on lifting equipment in the hoisting process by setting up temporary support "joists and columns", and finally successfully outlines the skeleton of the plant after 4 months.
Flattening and spreading out the giant "paper"
The two production plants are in a "Luzi-shaped layout", and nearly 30,000 square meters of concrete floors will be laid during the construction process, like two giant sheets of paper spread out. The project team started from improving the "paper", according to the local climate and external conditions, optimized the supply of raw materials, the proportion of raw materials, the construction process and other links, effectively reduced the heat of hydration and the shrinkage rate of concrete, and put an end to the cracking of large-volume concrete.
As a modern factory equipped with an efficient logistics system, in the future, the protagonist here will be a fully automated AGV intelligent logistics robot, which puts forward higher requirements for the flatness and wear resistance of the driving ground. The project team innovated the construction technology of corundum wear-resistant floor, which has better flatness, wear resistance and compressive resistance than ordinary concrete floors. In the construction of the emery surface layer, the project team used the level to track the elevation measurement in real time, and cooperated with the actual measurement of the three-meter ruler, and finally achieved the requirement that the flatness error in the area of 3×3 meters should not exceed 5 mm.
Green to build an energy-saving factory
Looking down from the air, a piece of black photovoltaic power generation panels are spread out one by one like scales, plating 29,000 square meters of "photovoltaic factor" for the factory surface, which can directly supply electricity for lighting, air conditioning and other loads in public areas, and is expected to save about 620 tons of standard coal annually. According to the characteristics of the photovoltaic roof, the project team selected TP0 waterproof materials with high waterproofness and anti-aging resistance, covered the bottom of the roof and the photovoltaic system, and used hot melt connection to make the two form a whole, providing stable waterproof protection for the "photovoltaic building integration".
There are photovoltaic panels for energy supply, and in the invisible underground, there are 821 vertical tube wells to form a ground source heat pump system, so that the plant can achieve "warm in winter and cool in summer". Each vertical tube well is up to 120 meters deep, and they "transport" the cooling water of the air conditioner to the soil under the foundation in real time, and achieve the effect of temperature regulation through the cold and heat exchange of surface water, saving more than 25% of electricity compared with ordinary air conditioners. In the process of drilling the tube well, in order to prevent the mud water from flowing from the borehole location, the project team set up a mud sedimentation tank and drainage ditch near the borehole, and the mud part was recharged into the well as a backfill material, and the surplus part was used as a fill for the green belt for secondary use, avoiding waste pollution.
In order to make each plant "green" and meet the national two-star green building standards, the project innovatively applies a large number of green energy-saving materials, uses rock wool boards, extruded plastic boards, double-glazed and other forms of insulation materials to reduce energy losses, and through hundreds of physical comparisons, accurately selects rock wool sandwich panel materials to build a plant exterior wall insulation system, and covers the production plant with a thermal insulation and beautiful "green coat".