With the construction of domestic subway pipelines and the implementation of fabricated houses, the demand for industrial production of concrete prefabricated parts is increasing. The prefabricated components produced by the factory adopt integrated and refined management, and the concrete strength and durability can better control the quality, thereby effectively ensuring the consistency of product quality, and the sewage, construction waste, noise, etc. generated at the construction site. It is also greatly reduced, with a significant green and low carbon advantage. As a cement concrete mixing plant manufacturer known as “absolute technology school†in China, Southern Road Machine has been focusing on mixing for more than 20 years. It has formed 10 categories, 35 types of concrete mixing stations, and special concrete mixing stations for prefabricated components of southern roads. Perfectly adapt to the construction requirements of prefabricated parts, meet the high-level requirements of the construction side for concrete strength and durability, widely used in urban subway segments, concrete pipe piles, concrete bridge frames, concrete boxes, lightweight concrete walls, synthetic fibers In the production of impervious concrete. Vertical axis planetary mixer The three-dimensional movement of the mixture brings superior agitation. It meets the technically stringent requirements of the precast concrete component industry. The mixture produces intense convection, diffusion, shear relative motion throughout the agitated volume. Adhesives and chemical additives are optimally decomposed. Additives such as pigments or fibers can be quickly and evenly dispersed. Concrete additives and additives can be dispersed quickly, evenly and efficiently even at very low doses. A consistently high quality mixing effect will be obtained in each batch. The cemented aggregates are broken up without damaging the aggregate aggregate particles. In addition, two or more independent discharge ports are available for discharge. In the prefabricated component industry, the wide application of concrete blocks, facing concrete, colored concrete, high performance concrete (including UHPC) or self-compacting concrete (SVB) confirms that the vertical axis planetary agitation technology is compared to a two-dimensional conventional mixing system. The advantages that have. Schematic diagram of the vertical axis planetary mixer of the South Road 1. In a common mixer, the paddles are simply transported and the components are mixed at the same time; while the South Road machine vertical shaft mixer has a fixed blade combination in addition to the agitating blades, which acts as a flow splitter and mixer bottom and machine. Wall scraper. 2. The combination of independently operating agitating blades and a fixed blade combination as a splitter results in 100% circulation of the material during each batch of the agitating plate (effect map); this is why the countercurrent mixing principle is so effective. For concrete product manufacturers and prefabricated parts, the South Road vertical shaft counterflow mixer also provides huge potential for savings, and the mixing time can be partially shortened (except for mandatory time); 3. The stirring strength of the southern road mixer is significantly higher than that of the conventional boiler or twin-shaft mixer. At the same time, the southern road machine vertical axis planetary mixer does not have the phenomenon of "wrapping the shaft" due to the different structural distribution; And the technical advantages of using the South Road Machine Vertical Axle Planetary Mixer to stir prefabricated parts are: Inclined bucket feeding mode, saving space on the site <br> Considering that the prefabricated production plants are mostly located around the city, the problem of land resources shortage. The precast concrete mixing station is equipped with the method of feeding the material by the inclined bucket. The modular design of the whole mixing station is quick and convenient to install. The whole station covers an area of ​​only 16m×16m. The structure is compact, the site utilization rate is high, and the flexibility is more satisfied. Multiple complex terrain requirements; Precise powder metering Powder scale and spiral, between the mainframe, the size of the head connection technology, does not produce the material pull. Between the powder and the platform, it is not welded or locked, and the micro-deformation of the metering platform during the transition of the warehouse is avoided, resulting in inaccurate measurement of the powder. The powder is called a breathable structure design, which balances the air pressure and does not produce a pull-up. The liquid admixture is coarse and fine, and the adjusting device such as the liquid storage bag and the manual ball valve is adjusted in time to improve the measurement accuracy. The electronic control adopts the automatic adjustment system of the drop to minimize the measurement inaccuracy caused by the instability of the drop. Rough and fine metering, pulse compensation, and super-weighing, ensure accurate measurement. A variety of monitoring devices are available to ensure the quality and safety of concrete. The online concrete homogenization monitoring system displays the mixing slump curve of the mixing tank in real time to prevent the slump from being out of control. The water content can be manually adjusted or selected sand, and the moisture content of the stone is automatically detected and adjusted. Raw material temperature detection and control system, concrete temperature detection and control system. Partial engineering case Saudi Middle East customer SACME SAUDIEST, 2010 purchased 6 sets of vertical axis planetary mixer equipment for high-volume prefabricated parts production needs. In the 24th Bureau of China Railway, in 2013, a set of 2m3 vertical axis planetary mixer equipment was purchased to complete the production of high-grade concrete for the 120,000-square prefabricated parts of Xiamen Metro Line 1#. China Railway First Bureau, 2015 purchased a set of 2m3 vertical axis planetary mixer equipment, used to complete the high-grade concrete production of 100,000 square prefabricated parts of Xiamen Metro 2# line. Guangdong Yuechuang Group, 2016 purchased a set of 3m3 vertical axis planetary mixer equipment, used to complete the production of high-grade concrete for new subway prefabricated parts in Shenzhen. China Railway 14th Bureau, 2017 purchase 2 sets of 2m3 vertical axis planetary mixer equipment, used to complete the production of high-grade concrete for Fuzhou new subway prefabricated segments. (This article comes from the southern road machine)
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Stirring and mixing trajectory diagram
The difference between the vertical road mixing technology of the South Road Machine and the traditional hybrid system is: 
1. Best for low slump high viscosity dry or SCC precast concrete production;
2. Compared with other conventional mixing, the efficiency of concrete mold feeding is high;
3, mixing material, discharge material clean cut bottom, no sticky pan "wrapping shaft" phenomenon;
4, easy to install humidity sensor, more suitable for smaller batches;
5, flexible configuration of multiple parallel discharge doors, can simultaneously meet the tanker and rail car receiving materials.
The feeding method adopts the design of the inclined bucket feeding material, which makes the site demand smaller, the infrastructure cost is reduced, and the floor space is reduced by 30%. It is used for the production of subway pipelines and prefabricated components, reducing the land demand area, and is suitable for high land cost and flexible equipment. Concrete requirements for higher agitation requirements. 
