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The project supplies manufactured sand and aggregate for expressway construction. Since a large amount of high-grade concrete is needed in the process of bridge construction, the construction unit not only have huge demand for manufactured sand, but also requires the high quality of it. However, the traditional sand-making process method has numerous defects such as large fineness modulus, high dust pollution，large footprint and etc. Thus, the customer decided to use VU aggregate optimization system to solve the problems. After the system was put into production, the plant has been running smoothly and the output keeps stable, which has brought great economic benefits to customer.
limestone(0-10mm)
0-0.075mm(stone powder),0.075—5mm(manufactured sand)
VU120 aggregate optimization system
Final product is mainly used as high-grade concrete material in expressway program.
VU Tower-like Sand-making System adopts original grinding technology and cascade fall shaping technology to make the finished product have reasonable grading and mellow grain shape, which effectively reduces the specific surface area and void of coarse and fine aggregates. In addition, dry powder removing technology is adopted to make the powder content in the finished sand adjustable and controllable.
After deep and professional analyses of raw materials, SHM recommended the customer to use cone crushers for crushing and vertical-shaft sand-making machines for artificial sand production.
SHM’s cone crushers are optimized technologically which adopt special laminated crushing principle. This kind of crushing principle is helpful to bring final products with better shape on one hand and to lift crushing efficiency on the other hand. Besides, SHM’s sand-making machines have two functions. By simply changing the equipment structure and feeding mode, they can realize aggregate shaping and sand making simultaneously. The aggregate produced usually has excellent granularity and shape.
SHM’s cone crushers use a centralized intelligent LCD (Liquid Crystal Display) which can monitor operational situations, oil temperature and pressure and so on in time. Meanwhile, they adopt fully hydraulic control such as adjustment of discharge port, automatic clearing and automatic iron-pass protection, not only reducing labor costs, but also greatly shortening the time for equipment maintenance, which further maximizes economic profits.
The intensive design significantly reduces footprint and facilitates the layout of the entire project.
This project adopts the wet process. A sewage disposal system is equipped. After treatment, the recycle ratio of sewage can reach 95%. The pollution during operation is controllable. The emission of air pollution waste is below 10mg/m³, farther lower than the national standard of 30mg/m³. So, the production, on the whole, is green and environmental.
