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Filter element for Multi media filter


Bluslot customized wedge wire screen filter element specially used in Multi media filter.

Multi media filter is a process of effectively removing suspended impurities and clarifying water by using one or several filter media to pass water with high turbidity through granular or non granular materials with a certain thickness under a certain pressure. The commonly used filter materials include quartz sand, anthracite, manganese sand, etc., which are mainly used for water treatment and turbidity removal, softened water, pre-treatment of pure water, etc, The effluent turbidity can be below 3 degrees.

  • Porous media filters are widely used in water treatment processes and can be used alone, but most of them are used as pre filtration for advanced water treatment (exchange resin, electrodialysis and reverse osmosis).
  • Multi media filter is a common pretreatment device for deep purification of water quality. Different filter materials can be added according to the process requirements.
  • The material of multi-media filter can be FRP, A3 steel anti-corrosion or rubber lining, all stainless steel. The operation modes are fully automatic and manual. The automatic control adopts the automatic controller and pneumatic and hydraulic valve control imported from the United States. It is easy to operate and easy to maintain. It is widely used in the pretreatment devices of water treatment processes in all walks of life.
  • The filter material of multi-media filter (including double filter material filter) shall have sufficient chemical stability, and the relative density and particle size of each medium shall be different. The relative density of anthracite used in the double-layer filter material filter composed of anthracite and quartz sand is 1.4-1.6, the particle size is 0.8-1.8mm, the relative density of quartz sand is 2.6-2.65, and the particle size is 0.5-1.2mm; In addition to the above two filter materials, the three-layer filter can also use heavy ores such as manganese sand and magnetite, with a relative density of 4.7-5.0 and a particle size of 0.5-4mm.

Quartz sand filter consists of filtration system and control system. The filtration system is usually composed of high-efficiency filtration unit, three-way automatic valve, inlet and outlet water pipeline and sewage pipeline. The high-efficiency filter unit includes various filter media. The control system is usually composed of PLC timing controller, differential pressure controller, electromagnetic three-way valve and control pipeline.