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silica sand mining introduces. foundry silica sand is the quartz as the main mineral composition, particle size of 0.020 mm to 3.350 mm refractory particles, according to the mining and processing methods of different can be divided into artificial silica sand and sand washing, sand washing, selection of natural silica sand such as sandsilica sand washing plant is used to wash out dirt, ash from the sand. In this sand washing process, xsd series sand washing equipment are widely used, its capacity varies from th to 180 th. silica sand processing flow. In the silica powder making process, jaw crusher is used as primary crushing machine, then go through the secondary nov 02, 2020 the raw silica sand from the mining site must be crushed, screened, and ground before it can enter the subsequent process. the operation of processing silica sand deposits is basically the same as processing hard rock. In a small silica sand washing plant, a jaw crusher is used to crush the raw ore to about