Tailings treatment equipment/tailings sand making machine
My country has a large number of metal and non-metallic minerals. In the process of mining and processing, about 20% of tailings will be produced. The accumulation of a large number of tailings not only occupies a large amount 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, but also improve the utilization rate of resources, and can form comprehensive benefits!
Sand is the main material of concrete. With the development of the construction industry and the emphasis on the quality of construction projects, the amount of sand used in the construction market is increasing, and the quality requirements are getting higher and higher, while the qualified natural sand resources are becoming less and less. The resulting scarcity of natural sand for construction is becoming more and more serious. Sand production has also changed due to changes in resources, and the quality and quantity of construction sand has an increasingly obvious impact on the construction market. Therefore, the status of qualified artificial sand is more and more prominent.
Machine-made sand refers to the use of crushers and sand making machines to crush the ore, and then screen the rock particles with a particle size of less than 4.75mm (excluding soft rock, weathered rock and other particles). In view of the fact that machine-made sand is generally made of rocks, pebbles (river pebbles), and ore is blasted through the mountain, crushed by a crusher, a sand making machine, and then screened by a screening equipment, its strength and hardness will be higher than that of natural sand. Therefore, in some key projects, such as airport construction, highways, national roads, 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 amount of waste ore, tailings and river pebbles. On the other hand, the sand produced by the crusher is generally of good quality and can meet the needs of various grades of concrete, asphalt concrete, etc. Over the years, Henan SMMVIK has gathered experience in sand making at home and abroad, and has successively developed PCL series sand making machines, VSI series sand making machines and 5X series vertical sand making machines, which greatly improves the working efficiency of sand making machines, reduces environmental pollution and Investment cost, reliable performance, is also a kind of machine-made sand equipment welcomed by customers.