In recent years, with the rapid construction development home and abroad, huge demand for construction sand sharply rise, but the amount of natural sand collected has been unable to satisfy the amount of sand required for the construction development.
Sand prices began to rise year after year, due to the lack of natural sand. In order to deal with the problem that the shortage of the construction sand between production and consumption, then manufactured sand was produced. Manufactured sand is also called artificial sand, which was produced by crush the cobble stone or other stone into sand by sand manufacturing machine in sand production line.
As the basic materials of concrete, cement mortar of architectural sand, Successful application of artificial sand is an indisputable fact that a large number of engineering practices (including the Three Gorges Project) has demonstrated the possibility and necessity of using sand. The sand manufacturing line consists by vibrating feeding machine, jaw type crusher, screening machine and belt conveying equipment and other mining equipment. According to different process requirements, various types of mining equipment can be combined to meet the technological requirements of different customers.
Firstly, the stone was broken by primary crushing machine such as jaw crusher, impact crusher, then, the coarse sand grain was transported to secondly crusher such as cone type crusher for further crush. Then the broken small stone can be screened out the two major sands via screening machine, one kind can be transported to sand manufacturing machine, the other will be crushed again. The small stone will be made into manufactured sand by sand producing machine, after washing by sand washing device(optional), the final artificial sand was made.
Core equipment for manufactured sand production line is sand manufacturing machine such as vsi crusher, vsi5x crusher etc. There are three generations of this kind of machines produced by our company and each generation has a superior performance and better economic benefits than its previous one. Now most of the manufactured sand are medium, coarse sand, the fineness modulus is of 2.6-3.6 in turbid, particle size distribution even and adjustable, with a certain amount of powder, rough surface, sharp edges.
High strength pumping concrete made by manufactured sand will not block the pump in the process of pumping. The concrete of right use of manufactured sand has large density, impermeability, good freezing-resisting property, other physical properties and long-term durability can use to meet the design requirement too. Manufactured sand is particularly suitable for the preparation of high strength concrete, high-performance concrete and pumping concrete.
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