Quartz sand filter is made of natural quartz ore by crashing, filtration and washing,it’s rhombus,white,no impurities,density is 2.66,silicon content is 99.3%, mechanical strength is 7.5 degree.At present,using natural river sand or sea sand filter midium in some areas, although the low price, but the short duration of use, poor mechanical strength, easily broken. Sand quartz sand’life cycle is 3-4 times of the natural.
- 1. The sum of the smash ratio and the abrasion ratio shouldn’t larger than 1.5%.(According to the percentage of quality, the same below)
- 2. Density should not be less than 2.55g/cm3
- 3. Filter medium should be free from visible soil, mica and organic impurities, the lixiviate water should be non-toxic substances, including soil’ content shouldn’t exceed 1%.The light substance of density is less than 2g/cm3,which content shouldn’t exceed 0.2%.
- 4. Quartz sand the ignition reductions shouldn’t exceed 0.7%, hydrochloric acid soluble rate shouldn’t exceed 3.5%.
Quartz sand filter medium is not only the best single-layer filter material,with anthracite filter medium are the most ideal for double filtering.Refining quartz sand applied to drinking water filtration and other water’purification treatment,and more suited to water pre-treatment and recycling water treatment of production like petroleum and recycling water treatment, chemical, mining, metallurgy, thermoelectric, papermaking, printing and dyeing, tanning, food.。
- 1. The range of dia. in single and double-layer filter pond betweens 0.5~1.2mm,in three-layer filter pond is 0.5~0.8mm.
- 2. In all,the particle size is less than the specified minimum level should not be greater than3%, greater than the specified maximum size should not exceed 2%.
- 3. The effective quartz sand filter medium size and uneven coefficient, identified by the use unit.
| Item | Date | Item | Date | Item | Date |
| Sio2 | 99% | Density | 1.75g/cm3 | HCl Solubility | 0.02% |
| Hardness Of Mo | 7.5 | Abrasion Ratio | 0.03% | Acid-Resistant | 98% |
| Boiling Point | 2550℃ | Smash Ratio | 0.35% | Acid-Resistant | 98% |
| Melting Point | 1480℃ | Ash Ratio | 0.25% | Content Of Zn | 0.005% |
| Weight Proportion | 2.66 | Interspace Ratio | 43% | Other Metals | According to State Standard |
Please apprise us the model and quantity.