Quartz Sand

Quartz sand is a quartz particle formed by crushing and processing quartz stone. Quartz, also known as silica, is a hard, wear-resistant, and chemically stable silicate mineral. In nature, quartz sandstone, quartzite, and vein quartz exist. Quartz sandstone is a consolidated clastic rock, with a quartz debris content of over 95%. The main mineral component is SiO2, which is an important industrial mineral raw material.

The color of quartz sand is milky white or colorless and semi transparent, with a hardness of 7. It is brittle and has no cleavage. It has a shell like fracture surface, a greasy luster, a density of 2.65, a bulk density (1.6 for 1-20 mesh), and 1.5 for 20-200 mesh. Its chemical, thermal, and mechanical properties have obvious anisotropy, are insoluble in acid, and slightly soluble in KOH solution, with a melting point of 1750 ℃. In industry, quartz sand is often divided into ordinary quartz sand, refined quartz sand, high-purity quartz sand, fused silica sand, silica powder, etc. Widely used in industries such as glass, casting, ceramics, refractory materials, and ferrosilicon smelting

The quartz sand has various mineral content. With quartz as the main component, then feldspar, mica, rock debris, heavy minerals, clay minerals, etc. The common specifications of quartz sand include: 0.5-1mm, 1-2mm, 2-4mm, 4-8mm, 8-16mm, 16-32mm, 10-20 mesh, 20-40 mesh, 40-80 mesh, 100-120 mesh.

The unique physical and chemical properties of quartz sand make it occupy a pivotal position in aviation, aerospace, electronics, machinery, and the rapidly developing IT industry today. Especially its inherent molecular chain structure, crystal shape, and lattice change law make it resistant to high temperature, low coefficient of thermal expansion, high insulation, corrosion resistance, piezoelectric effect, resonance effect, and its unique optical properties. It plays an increasingly important role in many high-tech products.

Quartz sand is an important industrial mineral raw material, not a chemical hazardous material, widely used in industries such as glass, casting, ceramics and refractory materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, etc. It can be transported by car, train, or water. Industrial production generally involves 50KG or 25KG packaging and export ton bag packaging. Common specifications: 0.5-1.0mm 0.6-1.2mm 1-2mm 4-4mm 8-16mm 16-32mm (In millimeters).

1. Glass: The main raw materials for flat glass, float glass, glass products (glass jars, glass bottles, glass tubes, etc.), optical glass, glass fibers, glass instruments, conductive glass, glass cloth, and anti radiation special glass.

2. Ceramics and refractory materials: Raw materials for porcelain embryos and glazes, as well as high silicon bricks, ordinary silicon bricks, and silicon carbide used in kilns.

3. Metallurgy: Raw materials or additives, fluxes for silicon metal, silicon iron alloy, silicon aluminum alloy, etc.

4. Architecture: Concrete, cementitious materials, road construction materials, artificial marble, cement physical performance testing materials (i.e. cement standard sand), etc.

5. Chemical industry: Raw materials for silicon compounds and water glass, fillers for sulfuric acid towers, amorphous silica micro powder

6. Machinery: The main raw materials for casting sand, grinding materials (sandblasting, hard grinding paper, sandpaper, sandcloth, etc.)

7. Electronics: High-purity metal silicon, communication optical fibers, etc.

8. Rubber and plastic: Fillers (improve wear resistance)

9. Coatings: Padding (To improve the acid resistance of coatings)

10. Aviation and aerospace.

Quartz sand has important uses in daily life, production, and scientific research, but sometimes it can also cause harm to the human body.

The dust of quartz sand is extremely fine, with a specific surface area of 100 ㎡/g or more, and can be suspended in the air. If a person inhales dust containing quartz sand for a long time, they will suffer from silicosis (formerly known as silicosis, silicosis).

Silicosis is an occupational disease, and its occurrence and severity depend on the content of dust in the air, the content of quartz sand in the dust, and the duration of contact with humans. People who work in places with high quartz sand dust content for a long time, such as mining, sand turning, sandblasting, ceramic making, refractory material making, etc., are prone to this disease.

Therefore, in these dusty workplaces, strict labor protection measures should be taken, and various technologies and equipment should be used to control the dust content in the workplace to ensure the physical health of workers.