也称为压力式过滤器，是纯水制备前期预处理、水净化系统的重要组成部分。 Mechanical filters, also called pressure filters, are an important part of the pre-treatment and water purification systems in the early stages of pure water preparation.
The mechanical filter uses the refined quartz sand filter material filled in the filter. When the water flows through the filter layer from top to bottom, the suspended matter and viscous particles in the water are removed, so that the turbidity of the water is reduced, and it is retained and removed. Suspended matter, organic matter, colloidal particles, microorganisms, chlorine smell and some heavy metal ions in water, one of the traditional water treatment methods for purifying water. The internal fillers are generally: quartz sand, anthracite, porous ceramics, manganese sand, etc. Users can choose to use according to actual conditions.
Mechanical filters are made of steel-lined rubber or stainless steel, and are divided into natural quartz sand filters, multi-media filters, activated carbon filters, manganese sand filters, etc. according to the different filter media. Among them, the medium of the multi-media filter is quartz sand, anthracite, and the like. Its function is to filter out mechanical impurities and organic matter in suspended matter, and reduce the turbidity of water. The activated carbon filter medium is activated carbon, whose purpose is to adsorb and remove pigments, organics, residual chlorine, colloids, etc. in water. The medium of the manganese sand filter is manganese sand, which mainly removes divalent iron ions in water.
According to the water inlet method, it can be divided into single-flow filter and double-flow filter. According to the actual situation, it can be used in combination or alone.
Mechanical filters are used in water treatment processes. They are mainly used for water treatment to remove turbidity, reverse osmosis, and pre-treatment of ion exchange softening and desalination systems. They can also be used for surface water and groundwater to remove sediment. The turbidity of the incoming water is required to be less than 20 degrees, and the turbidity of the effluent can reach less than 3 degrees. Can be widely used in electronic power, petrochemical, metallurgical electroplating, papermaking and textile, pharmaceutical dialysis, food and beverage, drinking water, water for factories and enterprises, swimming pools and so on. Can meet the needs of liquid filtration in various industries.