as to boost domestic demand, local roads, railways and other infrastructure investment increasing, urgent need a lot of sand. In order to protect the ecological balance, the state expressly prohibit unauthorized excavation of natural sand (except clean up the river). Natural sand keep up with demand for greatly. Therefore, the development of sand will be very eager to come up on the agenda. With the rise of China's economic development, real estate, roads and other industries, the demand and increasingly high quality sand, but to meet the needs of the few and far between, so we have to develop new resources, artificial sand (sand) is a natural sand in recent years to compensate for the needs created, for the present in some parts of the country are in the production and use of sand, some areas will be industrial waste, construction waste and waste rock processing and utilization.
In recent years, the industry has become a business that is traditional and new fields. Sand production not only can fully exploit the available materials and artificial sand production waste resources, but also to increase revenue, protect the environment but also get a few things in one fell swoop. Therefore, in the sand production is to promote and encourage the development of mechanisms of gravel. Sand domestic mature technology with professional sand production line has been the beginning of a large scale, artificial sand production equipment and technology is fully in place, the development of artificial sand is imperative
vertical roller mill for sale. The company is a large mining machinery import and export base of machinery and equipment, is equipped standardization, scale, professional production system of sand equipment manufacturers, production of hydraulic crusher, new hydraulic Sand, simple operation, high degree of automation while greatly improving the efficiency of sand, more uniform product size, can long work smoothly and efficiently, environmental adaptability, economic benefit.
and artificial sand and natural sand production will have fundamentally different artificial sand production regardless of size, there must be a fixed production sites, production technology and production equipment, the quality of its products is entirely possible that the control and sand quality is stable, therefore, improve the degree of management of artificial sand production, artificial sand production enterprises should set strict demands, it can produce a good quality gravel. So artificial sand instead of natural sand is inevitable social development, especially the development of the construction industry. Mining equipment requirements for particulate material is fine sand. In general, for flakiness material into, but more susceptible to ground. The gravel contrary to the above requirements, its grain type, grain size requirements are very stringent. The reason is that because of its sand between the cube with edges, so that the particles have a mutual locking effect. The graded sand and make the gap greatly reduced. Meanwhile cubic round sand sand than occupy a larger surface area, asphalt and cement materials or materials from sticking together and reduce the likelihood of displacement.
