In the concrete mixing station, sand separator has become a kind of form a complete set of machinery and equipment. Domestic in the study of sand separator although started late, but also invested a lot of energy, thus gradually catch up with the world advanced level. But foreign reach after solid-liquid separation in research and development began to stagnate, at present has been to maintain the status quo. We need to talk about in terms of economy and the use of domestic seems relatively compared with foreign advanced equipment, whether to have the competitive advantage.
Sand separator abroad there is no screening equipment, that is more depend on water to wash, concrete and aggregates and water separation. In the slag material consists of feed hopper, after receiving injection screw roller sand separator and after rotating separation, water mixture by low discharge, such as sand and gravel aggregate mobile device by high discharging, the sand, no separate are mixed together. Isolated each other have entrained sand and gravel, slurry, sand, cement, sand and gravel outsourcing sand slurry outside bread, prone to agglomerate.
Domestic sand separator in realization of solid-liquid separation at the same time, also carried out on the sand screening, it will need to use the drum sieve sieve. Screen as long as separate size large difference of sand and gravel. Such a separation of sand is not only very clean, and from different discharging mouth eduction, form the accumulation of different materials. But is not to say that the equipment to upgrade the higher, the more accord with the sustainable development of economy. We came up from economy and the use of analysis, the recycled aggregate of concrete in the actual production of the proportion is very small, not the application of the thorough separation will not affect the strength of concrete, instead there will be a slight increase.