Quartz sand filter selection, quartz sand filters offer, quartz sand filter parameters ..

First, quartz sand filter action principle introduced quartz sand filter (sand filter for short) is the name suggests is the filler is quartz sand filters, quartz sand filters are generally used as pre-treatment equipment and mineral water equipment, he was mainly through the filter of silt, colloids, metal ions and organic matter trapped, adsorption. In water purification and sewage treatment commonly used because of its clean, inexpensive, low operating costs, so used widely, a common filter 304 stainless steel, carbon steel, general internal epoxy or rubber lining anti-corrosion treatment, Common bell mouth water distribution on the water distribution system water distribution, water distribution basket, under a flat-water distribution water distribution, water distribution domed plate, stainless steel pipe water distribution, water of cloth mushroom cap with ABS and stainless steel cylindrical wire around the water cap water distribution, because taking into account the quartz sand filter backwash, so generally flux of water distributor is usually about three times the run flow. Second, the main characteristics of quartz sand quartz sand filter is a simple filter device structure, operation more convenient backwash, mainly by regulating the 4 valve, so that the direction of the water change, runtime progress under backwash is the next entry On that, then the backwash of sewage discharged through the drain valve, and then are washed through, until the water is clear and clean up, filling quartz sand should be noted: quartz sand interception layer specification 0.5-1.0mm, height of 700mm or more, under 2 layer support layer, which are filled with 1-2mm high in 150-200mm, 2-3mm loaded high in 150-200mm. Untreated water, its interception capability 0.5-1.0Kg / m3, after water lime treatment, the interception capacity of 1.5-2.0 Kg / m3, for after coagulation treatment of water, the interception capacity of 2.5 3.0Kg / m3. Third, quartz sand filters and other equipment is relatively quartz sand relative charcoal, he has interception capability, particularly for sand and other fine particles in addition to a higher rate, and low price, the market a ton of quartz sand is about 500 yuan , and a ton of charcoal requires about 8,000 yuan quartz sand filter relative fiber ball filter, he mainly in quartz sand and convenient operation, only needs backwashing, flushing can be, and in addition to fiber ball filter backwash and flushing outer also need stirring motor stirring, operation difficulty is relatively high. And quartz sand backwash relatively easy, but fiber balls easy to agglomerate, easy backwashing. Fiberball regeneration requires stirring, increasing energy consumption, increase operating costs, and fiber balls are expensive, the average price of 50 yuan per kilogram again. Fourth, quartz sand filter scope for drinking water and other water purification filter is more suitable for pre-treatment and recycling of water in petroleum, chemical, mining, metallurgy, thermal power, printing and dyeing, leather, food and other production water, and wastewater recycling. Other uses of quartz sand: quartz sand used in the manufacture of glass, refractories, ceramics, smelting ferrosilicon, floor, architectural coatings, casting, grinding and so on. Fifth, quartz sand filter technical parameters: 1, the design filtration rate: 8-12 m / h when the head loss of about five meters, the need for back wash (usually by reading the inlet and outlet pressure in 0.05MP). 2, backwashing strength: 10-15L / sec square meter?. 3, flush lasted: 4 5-7 minutes, water pressure: ≥0.4Mpa backwash water pressure: ≥0.20Mpa 5, an expansion ratio of 25% -50%. See: http: //www.571water.com/pro_show.asp id = 38?