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Currently applied in most areas of our country's economic construction sand is a natural sand. However, natural sand resources are in a short period of time is not renewable resources. With the basic construction of the stride forward singing militant songs, natural sand resources in many areas of our country is increasingly reduced, the contradiction between supply and demand of economic construction with sand concrete is particularly prominent, with increasing prices of natural sand, greatly affected the progress of project construction.
With home due to long time wantonly mining caused sand resources shortage, prices rose. Driven by economic interests, in many areas of China there are excessive and disordered mining of natural sand, especially in the last few years, Huitian dig sand, river sand digging the destruction of meet the eye everywhere, not only undermines the cultivated land, flood control dam Co., which has caused many engineering accidents.
I metal ore large state-owned and non metal ores, tailings produced about 20% in the mining and processing process, there are a lot of tailings is not reasonable use, has about billions of tons of tailings accumulation, occupy a lot of land, causing environmental pollution. If the crusher proper sorting and processing, a lot of tailings can for adult workers sand, which not only solves the problem of environmental pollution, and improves the utilization rate of resources, the formation of comprehensive benefit. At present, the domestic mature technology of artificial sand production line to have multiple, equipment and production technology of artificial sand all the conditions, domestic and foreign brands and types of sand making equipment available for different. Therefore, it is imperative to the development mechanism of sand.
The mechanism of sand production equipment of domestic famous manufacturer, efficient system sand machine production, the mechanism of sand production benefit is very distinct, the mechanism of sand production of multiple triangular body or a square body, the surface is rough, sharp edges and angles. Density of concrete with artificial sand, anti permeability, anti slip performance is good, so the artificial sand is especially suitable for the preparation of high strength concrete and high performance concrete and pumping concrete.
New system sand machine put into use will greatly ease the contradiction between the supply and demand of sand and gravel, reduce the environmental pollution caused by such natural sand. It is an inevitable choice for the future aggregate market.
http://www.crusherexperts.org/solution/sand-making-machine.html