Tailings Sand Production MachineLast Update:2020-05-13 13:58:09
China has a large number of metal and non-metal minerals. In the process of mining and processing, about 20% of the tailings will be produced. The accumulation of a large number of tailings not only occupies a lot of land, but also causes environmental pollution and waste of resources. If these tailings can be processed and screened again to make artificial sand and mineral powder that can be used, it can not only solve the problem of environmental pollution Topic, and improve the utilization rate of resources, can form a comprehensive benefit!
Sand is the main material of concrete. With the development of construction industry and the attention to the quality of construction projects, the quantity of sand used in the construction market is increasing, and the quality requirements are higher and higher, while the qualified natural sand resources are less and less, resulting in the scarcity of natural sand for construction. Sand production has also changed with the change of resources. The quality and quantity of construction sand have an increasingly obvious impact on the construction market. Therefore, the position of qualified manufactured sand as building materials is more and more prominent.
The machine-made sand refers to the rock particles (excluding soft rock, weathered rock and other particles) with the particle size less than 4.75mm, which are crushed and screened by the crusher and sand maker. Since the machine-made sand is generally rock, pebble (River pebble), ore is crushed by mountain blasting, crusher and sand maker, and then screened by screening equipment, its strength and hardness will be higher than that of natural sand. Therefore, in some key projects, such as airport construction, highway, national highway, construction sand, etc., high-quality machine-made sand will be used instead of river sand or sea sand.
The advantage of machine-made sand is that it can reuse a large number of waste ore, tailings and pebbles. On the other hand, the sand produced by crusher is generally of good quality and can meet the requirements of various grades of concrete, asphalt concrete, etc. Henan Liming heavy industry has developed PCL series sand making machine, VSI series sand making machine and 5x series vertical sand making machine, which has greatly improved the working efficiency of sand making machine, reduced environmental pollution and investment cost, and has reliable performance. It is also a machine-made sand equipment popular with customers.
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