Summarize
Quartz sand filter (referred to as sand filter), also known as sand filter device, sand filter equipment. As the name suggests, it is a filter filled with quartz sand, quartz sand filter is generally used as a pretreatment of pure water equipment and mineral water equipment, he is mainly through the filter material for sediment, colloids, metal ions and organic matter for interception, adsorption. In purified water treatment and sewage treatment commonly used, because of its pollution-free, low price, low operating costs, so the application is more widely, the common filter has stainless steel 304 material, carbon steel material, the general internal use of epoxy or lined rubber anticorrosive treatment, water distribution system on the water is common loudspeaker cloth water, hanging basket cloth water, under the cloth water flat cloth water, domed plate cloth water, Stainless steel tube type water distribution, water distribution cap has ABS mushroom head and stainless steel cylindrical wire wrapped water cap water distribution, because to take into account the quartz sand filter backwash, so the general flux of the water distributor is usually about three times the flow rate.
Main feature
Quartz sand filter equipment has a simple structure, the operation of the backwash is more convenient, mainly by adjusting the four valves, so that the direction of the water change, the operation is up and down, the backwash is down and out, and then through the sewage valve will be backwashed sewage discharge, and then through the wash, until the water is clear and clean, the quartz sand should be loaded: The intercepted layer quartz sand specification is 0.5-1.0mm, the height is more than 700 mm, and there are 2 layers of supporting layers, respectively, 1-2mm loading height is 150-200mm,2-3mm loading height is in
150-200mm. For untreated water, the intercepting capacity is 0.5-1.0Kg/m³, and for lime-treated water, the intercepting capacity is 1.5-2.0 Kg/m³, for coagulated areas
The sewage intercepting capacity of the water is 2.5-3.0Kg/m³.
Scope of application
Suitable for drinking water filtration and other water purification treatment, more suitable for petroleum, chemical, mining, metallurgy, thermal power, printing and dyeing, leather, food and other production water treatment and circulating water treatment, as well as sewage recycling.
Other uses of quartz sand: Quartz sand is used in the manufacture of glass, refractory materials, ceramics, smelting ferrosilicon, floor, architectural coatings, casting, grinding and so on.
Technical parameter
1, the design filter speed: 8-12 meters/hour when the head loss is about 5 meters, it is necessary to backwash regeneration (generally by reading the inlet and outlet pressure difference at 0.05MP).
2, reverse cleaning strength: 10-15L/ s · square meters.
3, flushing duration: 5-7 minutes
4, inlet water pressure: ≥0.4Mpa backwashing inlet water pressure: ≥0.20Mpa
5. The expansion rate is 25%-50%.