Do you Know How to Ensure the Strong Retention Capacity of the Filter?
Feb. 25, 2021
As a Stainless Steel Wire Mesh Supplier, share with you.
The pre-filter is generally installed at the front end of the pipeline, so it is named after the word "pre-", and "filter" refers to the basic principle of this type of equipment. Usually "T" type structure. The left and right ends of the "one horizontal" position above are the water inlet and outlet respectively. The bottom "one vertical" position is the fuselage and the internal cylindrical filter, and the bottom end is the sewage outlet, which is controlled by a valve to open and close.
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The accuracy range of the filter screen varies from 5-300 microns according to different brands and models. It mainly removes the precipitated impurities and bacteria, microbial remains, rust, sand and mud produced by the pipelines and particles larger than 5 microns to avoid harm to the human body and skin; and for downstream pipelines, water purifiers, water heaters, washing machines, and high-end Faucets and showers play an active role in protection and the pre-filter can also be added with a "hydrochloric acid and phosphorus" anti-scaling filter element to prevent solar energy and water boilers.
It is usually installed after the water meter of the inlet pipe to ensure that the large amount of precipitated impurities produced in the pipe network will not cause harm to the human body. And it plays a positive role in protecting concealed pipes, faucets, electrical appliances, etc. The pre-filter is the nemesis of secondary pollution and a reliable impurity filtering device.
Multi-media filter is a media filter that uses two or more media as the filter layer. In the industrial circulating water treatment system, it is used to remove impurities and adsorbed oil in the sewage, so that the water quality meets the requirements of recycling. The role of filtration is mainly to remove suspended or colloidal impurities in water, especially to effectively remove tiny particles and bacteria that cannot be removed by sedimentation technology. BOD5 and COD also have a certain degree of removal effect.
The multi-media filter material in the filter is high-quality homogeneous gravel, quartz sand, magnetite, anthracite and other filter materials. These filter materials are scientifically and orderly distributed in the filter tank according to their specific gravity and particle size, such as small specific gravity. Anthracite with a slightly larger particle size is placed in the uppermost layer of the filter bed, quartz sand with a moderate specific gravity and a small particle size is placed in the middle layer of the filter bed, and gravel with a large specific gravity and large particle size is placed in the lower layer of the filter bed. Such a ratio ensures that the filter will not produce disordered layers during backwashing, thereby ensuring the retention capacity of the filter material.
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