River sand is a non-metallic ore with complex composition, smooth surface and high impurity content, which is produced by natural stone's repeated collision and friction with the force of water in natural state for a long time. The grain of river sand is smooth and clean, but due to the development of society, more and more river sand is needed, resulting in the shortage of river sand resources.
River sand has also played a huge role in the construction industry and infrastructure, such as road construction, and has made outstanding contributions to the construction industry.
In recent years, with the vigorous development of the construction industry, the construction of infrastructure projects, the massive excavation of river sand has caused many problems, such as the depletion of rivers, which has seriously affected urban water use and agricultural water use.
Therefore, a series of river sand protection policies and punishment policies for wantonly excavating river sand have been issued to intensify efforts to combat illegal sand mining. This has resulted in the shortage of river sand resources, In order to balance the contradiction between supply and demand of river sand in the market, machine-made sand has been widely used in the construction industry and infrastructure construction.
Subsequently, the production of machine-made sand was expanded on a large scale.Machine-made sand production lines have been increasing in many places. As machine-made sand has more advantages in quality and management than river sand. Rich raw materials can be properly sorted and processed by using various waste resources.
Many tailings can be made into artificial sand and gravel by using machine made sand equipment, which not only solves the problem of environmental pollution, but also improves the utilization rate of natural resources, fully meeting the requirements of circular economy and scientific development. The quality of manufactured sand products is stable, adjustable and controllable.
Secondly, quality advantage. Machine made sand is crushed by a crusher. It has high surface energy and hydrophilicity. It can be used to produce machine-made sand of different specifications. It has complete preparation, stable particles and can be adjusted. Raw materials include pebbles, marble and other mineral components. Thirdly, management advantages. The machine-made sand has a stable legal entity, a mining license and a fixed business site.
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