About the mechanical filter: The mechanical filter is made of stainless steel 304 or 316, 316L, Q235, and the filter materials of different particle sizes are arranged in the cylinder from bottom to top according to size. When the water flows from top to bottom, the suspended matter contained in the water flows into the tiny pores formed by the upper layer of filter material, and is subjected to adsorption and mechanical flow resistance, and the suspended matter is intercepted by the surface layer of the filter material. At the same time, the "overlapping" and "bridging" effects occur between these intercepted suspended substances, forming a thin film on the surface of the filter layer, and continuing to filter.
This is the membrane filtration effect of the so-called surface layer of the filter material. This membrane filtration effect not only exists on the surface layer, but also produces this interception effect when the water flow enters the middle filter material layer. Different from the membrane filtration effect of the surface layer, this intermediate interception effect is called permeation filtration effect.
In addition, because the filter materials are closely arranged with each other, when the suspended particles in the water flow through the tortuous channel formed by the filter material particles, there are more opportunities and time to collide and contact with the surface of the filter material, so the suspended matter in the water is red. The particle surface of the filter material flocculates and adheres to each other, and contact coagulation occurs. The working principle of the mechanical filter is to purify the water quality through the process of membrane filtration-permeation filtration-contact coagulation and so on. The stainless steel tank uses quartz sand as the filter medium. Under a certain pressure, the water with high turbidity is filtered through a certain thickness of granular or non-granular quartz sand to effectively intercept and remove suspended solids, organic matter, and colloidal particles in the water. , microorganisms, chlorine, smell and some heavy metal ions, etc., to make water clear water treatment equipment.
According to different water yields, quartz sand with different mesh numbers (quartz sand particles with different diameters) needs to be equipped. They are all used for water treatment to remove turbidity, soften water, and pre-treatment of pure water. The turbidity of the effluent can reach Below 3 degrees. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..