Industrial silica sand represents sand with the composition and grain‐size distribution required for industrial applications. Especially, industrial silica sand consists of well‐rounded, sand composed of almost pure quartz grains. Industrial silica sand is a higher value product than sand and gravel used in the construction industry.
In silica sand processing operation, the mined mineral from silica sand quarry deposit will be fed into jaw crusher or impact crusher for primary crushing, after primary crushing; the crushed silica sand is conveyed to cone crusher and VSI crusher for fine crushing.
Washing is the simplest and lowest cost technique of cleaning silica sand. In some of the very pure deposits which are without any heavy minerals, high quantities of clay and silt, and no surface staining, washing inadequate to produce acceptable grade product.
In the operation, water is added to the sand and is commonly pumped to a cyclone for desliming. The movement of the slurry passing through the pump and pipeline is sufficient to release the little quantity of fines or clay which is in the ore body. Once the minor quantities of fines or clay have been released from the silica sand they can be removed through a various techniques.
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