Silica sand processing plant equipment

What is silica sand?

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Silica Minerals represent the group of minerals being composed of silicon and oxygen forming the chemical formula SiO2. Silica can occur in macrocrystalline, crytocrystaline and amorphous form.

Industry predominantly uses the crystalline form of silica, i.e. quartz. Silica is used as granular products containing the particle size range >63 µm. Fine grained silica is used as functional fillers in various applications. 

Silicadioxide appears in almost 10 different crystal forms, with quartz, the most abundant representative, crystallizing in the trigonal crystal system.

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Quartz is mined from hard rock deposits with the most important representatives being vein deposits or pegmatitic deposits and alluvial deposits. The mineralisation respectively the deposit type, the accessory minerals, impurities occurring together with the quartz in the deposit as well as the intergrowth of the minerals in the ore matrix define the process route.   

It is chemically inert, chemically resistant to almost all acids with the exception of hydroflouric acid and soluble in alkaline fluxes.

What is silica sand used for?

Silica sand is used in paints & plastics, abrasives, ceramics, glass, filtration, surface treatment in sports & leisure facilities, construction, in sealants & adhesives, chemicals production, in foundries, in oil production, metallurgical applications and agriculture.

1. Crushers: Crushers are used to break down large quartz rocks into smaller pieces that can be further processed. Jaw crushers, impact crushers, and cone crushers are commonly used for this purpose.
2. Vibrating Screens: Vibrating screens are used to separate the quartz sand particles of different sizes. They can be used for both wet and dry screening.
3. Sand Making Machine: The sand making machine is used to create sand from quartz rocks. This equipment uses a high-speed rotating rotor to crush the quartz rocks into sand particles.
4. Sand Washing Machine: Sand washing machines are used to remove impurities from the quartz sand particles, such as clay, silt, and other organic matter. This equipment is crucial for producing high-quality quartz sand.
5. Drying Equipment: Drying equipment is used to dry the quartz sand after washing. This can be achieved through various methods, including rotary dryers, fluidized bed dryers, and flash dryers.
6. Storage Silos: Once the quartz sand has been produced, it needs to be stored in a safe and secure manner. Storage silos are commonly used for this purpose.
7. Conveyors: Conveyors are used to transport the quartz sand between different equipment and storage areas.

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