Progress of separation in mine around the world

 

Many developments in mineral separation have occurred since the first dense media cyclone using metal chloride salts dissolved in water, was patented in 1858. The Chance Process using water and sand, was patented in 1917 and was first applied to cleaning bituminous ore beneficiation in 1925. Although the Conklin Process using magnetite as the medium was tried with anthracite in 1922, it was not until 1938 that the Tromp Process for magnetite medium was used commercially The purposes of these and other developments was to improve the quality of ore to make it suitable for a specific purpose. 
 This question is answered by the fact that about 270 preparation machines are in operation (most in the eastern U.S.) thus indicating, that for at least some ores to be utilized, mineral separation must be practiced. British ore reported in 1991 that where ore is washed for sale, the then current cost for conventional mineral separation as a percentage of the total price is 7-8%. This figure includes the cost of reject disposal. The same report also claims that the cost per ton for cleaning fines is 3 to 4 times higher than the cost of cleaning larger size ore. 
In the domestic energy conservation, emissions reduction and efficient environmental protection is more and more intense, calls for the construction of economical society, although green can drive the sand aggregate and related crusher, the sand machine equipment market space ascension, but, from the development trend and perspective, energy conservation and environmental protection and efficient crusher, the sand machine is undoubtedly stave machinery products in the future research and development production guiding direction. 
In addition, a new type of environmental protection and energy saving equipment operation cost, as the scale and technology progress and industry reduced quickly. Reduce the cost, and the mining investors are more willing to purchase affordable, quality reliable environmental protection and energy saving equipment production as the device of choice. Based on this, the environmental protection energy-saving broken mechanical equipment becomes increasingly its long-term development advantage.
The development of the industry of cone crusher for the chemical industry's played an important role. At the same time our country there is a big particle materials crusher, hard material crusher, construction waste, etc. Crusher In the industry, it is used widely material broken method is still is broken, the main mechanical force by extrusion, arm broken, break off, grinding and impact crushing, etc. The mechanical force has not yet broken used in production in big industry.