Quartz sand filter materials are widely used and are indispensable materials for construction and drinking water treatment. However, the quality of quartz sand will also be good or bad. For example: high-purity quartz sand filter material and ordinary quartz sand filter material. Today, the Xiaobian of Gongyi Haijiang introduces in detail the difference between high-purity quartz sand filter and ordinary quartz sand filter. High-purity quartz sand filter material: it is a hard, wear-resistant, chemically stable silicate mineral. Its main mineral component is SiO2. The color of quartz sand is milky white, colorless and translucent, hardness is 7. No cleavage, shell-like fracture, grease luster, density 2.65, bulk density (1-20 mesh is 1.6, 20-200 mesh is 1.5, its chemical, thermal and mechanical properties have obvious anisotropy, insoluble in acid, Slightly soluble in KOH solution, melting point 1750 °C is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramics and refractory materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, Abrasives and other industries. Common specifications: 0.5-1.0mm 0.6-1.2mm 1-2mm 2-4mm 4-8mm 8-16mm 16-32mm. (mm is millimeter unit), high mechanical strength, strong interception capacity, stable chemical properties It is the ideal material for purified water treatment. The unique physical and chemical properties of high-purity quartz sand filter material make it play an important role in aviation, aerospace, electronics, machinery and today's rapidly developing IT industry, especially its Intrinsic molecular chain Structure, crystal shape and lattice change law, which have high temperature resistance, small thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect, resonance effect and its unique optical characteristics, which play a role in many high-tech products. The more important role. Ordinary quartz sand filter material: ordinary quartz sand is generally a kind of water treatment filter material which is made of natural quartz ore, crushed, washed, dried and screened twice; SiO2≥90-99% Fe2O3≤ 0.06-0.02%, refractoriness 1700 ° C, large part of the appearance of large particles, the surface has yellow skin encapsulation. The filter material has: no impurities, no calibration, high density, high mechanical strength, long life cycle of the sewage capacity line, It is an ideal material for chemical water treatment. In addition, a kind of natural quartz sand that has been widely used is also listed as an ordinary quartz sand by experts. Natural quartz sand refers to the non-uniformity of particles formed by natural quartz. Quartz sand, which is low in quartz content and mostly formed in water or seawater, is now widely used in many large factories, such as sea sand and natural sand.
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