Application of vibrating screen in the production of quartz sand
After the quartz stone mined from the mine is processed, the product whose fineness is generally within 120Mesh is called quartz sand. Products with more than 120Mesh are called quartz powder. Its technological process is generally: crushing-separation-rough selection-selection-winnowing-dust collection and so on.
1. Dry production of quartz sand, the main equipment includes stone crushing machine, grinder, vibrating screen, etc. The technological process is that the quartz stone is processed into smaller stones by a knocking stone machine, and the stones are processed by a grinder to process sand, and then sieved through a vibrating screen. During the sieving process, a magnet bar and a row of magnets are used to remove iron, and then packed Finished storage.
2. The main equipment for producing quartz sand by water method includes stone crushing machine, stone mill, baking room, vibrating screen, waterway system, etc. The process flow is roughly as follows: the quartz stone material is processed into smaller stones by a knocking stone machine, and the stones are then rolled into sand grains. During rolling, water is continuously added, and the water flows into the sedimentation tank with the sand particles, and then the sedimentation tank The sand grains are transported into the roasting room to be baked into dry sand grains, and then screened through a vibrating screen. In the screening process, the magnet rods and row magnets are used to remove iron, and then they are packed into storage. Quartz sand produced by dry method is divided into three grades: ordinary quartz sand, semi-refined quartz sand, and refined quartz sand. When the quartz stone is mined from the mountain, it has a yellow-brown skin. The product selected for direct crushing and screening of smaller quartzite minerals is called ordinary quartz sand, which is yellowish brown and white in appearance. Its advantage is that it is cheap, but its disadvantage is that it has more impurities, so it is mostly used in the construction industry.
The larger quartz stone material selected for processing is called semi-refined quartz sand, which is white in appearance but dotted with yellow-brown spots. The product is moderately priced and has good quality, so it has a wide range of applications. The large minerals are selected, the yellowish-brown skin is removed manually, and the refined quartz sand is processed again. Its appearance is white and shiny, just like white sugar. The price is higher due to the time-consuming and material-consuming processing. The quartz sand produced by the water method is divided into ordinary quartz sand and refined quartz sand. The smaller quartzite mineral is processed into ordinary quartz sand, and the large quartzite mineral is processed into refined quartz sand. Compared with dry-process quartz sand, water-process quartz sand produces less equipment iron and washes away impurities with water during the production process. For example, the iron content and impurities are less than dry-process quartz sand, but its processing is more labor-intensive. Material, so the price is higher. The quartz powder produced by the dry method is not classified into grades, only specifications. The quartz powder produced by the water method is not classified into grades, only specifications. Because of its high whiteness, no impurities, and low iron content, it has a wide range of applications.
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