An air filter is an indispensable device in the conveying medium pipeline. It is usually installed on the pressure-reducing valve, pressure relief valve, fixed water level valve, and the inlet end equipment of other equipment of Fanggong filter.
There are three types: flange connection, threaded connection, and welding. The filter consists of a cylinder body, a stainless steel filter screen, a sewage part, a transmission device, and an electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked. When cleaning is required, just take out the detachable filter cartridge and reload it after treatment. Therefore, it is extremely convenient to use and maintain.
Filter development history
In ancient China, filtration technology has been applied to production, and paper made of plant fibers has been made in 200 BC. In 105 AD, Cai Lun improved the papermaking method. During the papermaking process, he spun plant fiber pulp onto dense thin bamboo curtains. The water is filtered through the gap of the bamboo curtain, and a thin layer of wet pulp is left on the surface of the bamboo curtain, which becomes paper after drying.
The earliest filtration was mostly gravity filtration, and later pressure filtration was used to improve the filtration speed, and then vacuum filtration appeared. The invention of the rotary drum vacuum filter in the early 20th century enabled continuous filtration operations. Since then, various types of continuous filters have appeared one after another. Intermittently operated filters (such as plate and frame filter presses, etc.) have been developed due to their ability to automate operations, and the filtration area has become larger and larger. In order to obtain filter residues with low moisture content, filters for mechanical pressing have been developed.
How the filter works
The flocculation dosing device is used to add flocculant to the circulating water from the pump. After the raw water is pressurized by the booster pump, the flocculant is stirred by the pump impeller and evenly mixed to suspend the fine solid particles and colloidal substances in the raw water for micro-flocculation reaction. The flocs with a volume greater than 5 microns are generated, which flow through the filtration system pipeline and enter the high-efficiency asymmetric fiber filter, and the flocs are filtered and retained by the filter material.
⒈Irrigation of garden lawns and agriculture.
⒉ The total water supply filtration system for the catering, textile, mining, electronics, and foundry industries.
3. Nozzles in pulp and paper, metallurgy and machinery industries are filtered with water.
⒋General circulating water filtration for food, electricity, mining, and smelting industries.
⒌ Filtration of circulating water in cooling towers of medicine, petrochemical refining, air conditioning systems, or heating systems.
⒍Sewage ion exchange pretreatment of petrochemical, electromechanical and pharmaceutical.
Wuxi Lenge Purification Equipment Co., Ltd. is a professional purification equipment manufacturer. Suitable for pharmaceuticals, laboratory food, and beverages, etc. If you are interested in purification equipment, please feel free to contact us.
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