Common quartz sand

Quartz sand is a hard, wear-resistant and chemically stable silicate mineral. Its main mineral composition is SiO2. The color of quartz sand is milky white or colorless translucent, with a hardness of 7, brittle and uncleavage, shell shaped fracture, oil luster, and relative density of 2.65, and its chemical, thermal and mechanical properties have obvious hetero direction. It is insoluble in acid, slightly soluble in KOH solution, and melting point is 1750 degrees. The color is milky white, yellowish, brown and gray, quartz has high fire resistance, divided into: ordinary quartz sand, refined quartz sand, acid washing quartz sand, high pure quartz sand and so on.
The unique physical and chemical properties of quartz sand make it play an important role in the aviation, space, electronics, machinery and the rapid development of IT industry, especially its internal molecular chain structure, crystal shape and lattice change law, so that it has high temperature resistance, small thermal expansion coefficient and high insulation. Corrosion resistance, piezoelectric effect, resonance effect and its unique optical characteristics play an increasingly important role in many high-tech products.
The white quartz sand filter material is made of natural quartz ore, which is made of mining, crushing, washing and screening. The appearance is multi prismatic, pure white, no impurities, high mechanical strength, stable chemical property, large pollution carrying capacity and long use cycle.
Pu Bai quartz sand filter material is widely used in China. The white quartz sand filter material produced by our factory is made of natural quartz ore by crushing, screening and washing, with pure white, pure white, no impurity, 2.66 density, 99.3% silicon content and 7.5 degree of mechanical strength. At present, natural river sand and sea sand are used as filter materials in some areas. Although the cost is low, the use period is short, the mechanical strength is poor, and they are easy to break. The period of quartz sand is 3-4 times longer than that of natural sand. After filtration, the water quality is stable. Compared with the river sand and sea sand, the quartz sand is much cheaper than the river sand compared with the economic benefit. Analysis of physicochemical properties of refined quartz sand filter material: the analysis results of project unit analysis result unit analysis results containing% 0.05 HCl soluble percentage, 0.02 density, g/cm3 2.66, 2.66 acid resistance, 98 wear rate% 0.03 porosity% 43 crushing rate 0.35 capacity 0.35 capacity g/cm3 1.75 silicon oxide% 99.3 moth hardness 7.5