Natural dehydration of artificial sand. At present, the method and process adopted in natural dehydration of domestic hydropower projects is artificial sand cutting, storage dehydration and artificial sand retrieving separately. Generally, after 3-5 days of storage dehydration, the water content can be reduced to less than 6%. And stable. The content of artificial sandstone powder and the initial water content vary. Generally, the content of stone powder is in the range of 10% to 17%. The water content is reduced to 8% to 10%. When the moisture content is reduced to 8% to 10%, the dehydration speed is obviously slowed down when it is reduced to about 6%. Generally, it takes 3 to 5 days. According to the daily production of 15,000 tons of finished sand and the amount of 1-15,000 tons of sand used per day, the finished sand warehouse has a stockpile of 50,000 m, and the natural dehydration time is about 5 days.
Mica and quartz are common minerals that play an important role in mineralogy. Although they are both silicate minerals, there are clear differences between them. First, mica and quartz are very different in appearance. One of its distinguishing features is that mica exhibits a layered structure that can be easily peeled off into thin flakes. Quartz, on the other hand, is a uniform crystal with no layered structure. Additionally, mica is usually dark in color, such as black, brown, or green, while quartz is usually clear or white. Secondly, mica and quartz also differ in their physical and chemical properties. The hardness of mica is usually between 2.5 and 4, which is relatively easy to be scratched; while the hardness of quartz is very high, 7, which is a very hard mineral. In addition, mica has good refractive properties and electrical properties, while quartz is an excellent piezoelectric material.

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