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silica sand mining is a practice that is used to extract sand, mainly through an open pit. However, sand is also mined from beaches, inland dunes and dredged from ocean beds and river beds. It is often used in manufacturing as an abrasive, for example, and it is used to make concrete. As communities grow, construction requires less wood and more concrete, leading to a demand for low-cost sand. Sand is also used to replace eroded coastline.Another reason for sand mining is for the extraction of minerals such as rutile, ilmenite and zircon, which contain the industrially useful elements titanium and zirconium. These minerals typically occur combined with ordinary sand, which is dug up, the valuable minerals being separated in water by virtue of their different densities, and the remaining ordinary sand re-deposited. sand washing method:Everyone seems to like the look of a tank with a nice sandy substrate. Unfortunately, sand is much harder to clean than the typical gravel that can be thrown into a colander. Here's an easy method to clean that sand with minimal effort. If you have several tanks, this will really be helpful.First, you need a drill. Any type, electric or battery operated, will do. Now you need to run to your nearest hardware store and buy a $5 paint mixer. Use whatever clean container or bucket you would normally use for cleaning your sand. Attach the paint mixer attachment to the drill, pour your sand into a 5 gal bucket or larger and add dechlorinated water. I personally prefer to use several 5 gal. buckets, then I add about 10 lbs. of sand per bucket. Pour the water into each bucket, and then use the paint mixer to mix the sand with the water. I line my buckets up in a row and mix each one down the line. By the time I get to the last one, the first has already settled and is ready for you to pour off the water. I go back down the line pouring off the old water and adding the next rinse. Repeat the procedure down the line. It only takes 2-3 washings, and with the paint mixer it takes about 2 minutes of effortless mixing to do the job. I then pour the water into my outdoor plants to help add to the existing soil as the sand helps with drainage that you want around the roots. mobile crusher price is reasonable. the mobile jaw Crusher is ideally suitable for primary and secondary crushing. The highest anti-pressure strength of crushed material is 320Mpa. Our design and production are of high position both at home and abroad. One of our main products, mobile Jaw Crusher is designed by our engineers with large reduction ratio, even granularity, simple structure, reliable operation, convenient maintenance, low cost, Jaw Crusher is widely used in mining, metallurgy, construction, highway, railroad, and chemistry industries. This mobile jaw crusher uses motor as its power, through the motor's wheels, the eccentric shaft is driven by the triangle belt and slot wheel to make the movable jaw plate move by a regulated track.

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