Pneumatic Self-cleaning Filter
The Pneumatic self-cleaning filter can automatically clean the particles and impurities on the inner surface of the filter screen by mechanical scraping, which can continuously operate. It is mainly designed for high-viscosity filtration, suitable for high-viscosity liquid filtration work, the precision range is 30-1500 microns, accurate filtration, can quickly scrape impurities off the surface of the filter screen, so as to effectively remove more impurities, suitable for water and various filtration of viscous liquids. The pneumatic self cleaning filter use compressed air to drive the leaning mechanism which is more environmental and saving the energy.
Working principle
Filter Status
The liquid flows in from the inlet, the disc-shaped scraper with spring is close to the inner surface of the filter element, and stops at the upper end of the filter screen. The liquid passes through the scraper and flows outward from the inner surface of the filter screen. With the passage of time, the impurities gradually increase, the pressure difference rises, and the filter screen is cleaned according to the set pressure difference or regularly.
Cleaning Status
The cylinder drives the scraper to reciprocate up and down to clean the filter screen. When the scraper moves downward, the impurities are pushed to the bottom of the filter by the scraper, and the impurities with large specific gravity are deposited into the sewage collection chamber. When the scraper moves upward, the residual impurities are scraped and pushed to the upper end of the filter element, and the impurities are washed away by the flowing liquid, pass through the scraper, and return to the inner surface of the filter screen, and are scraped away when the scraper moves downward. Each cleaning consists of several strokes, after the surface of the filter screen is cleaned, the filtering capacity is restored. Normal filtration during cleaning, flow is not interrupted.
Discharge status
After several cleaning cycles, the impurities accumulate to a certain amount, and the drain valve is opened regularly to discharge the waste liquid containing high concentration impurities, which can also be recycled if necessary.
Technical features and advantages
■Up and down reciprocating scraping, directly pushing impurities to the dirt collection chamber, good at filtering viscous liquids and removing viscous suspended impurities;
■ Simple structure, easy to disassemble and assemble, after removing the scraper, the filter element can be easily taken out, and the interior is easy to clean;
■ Fully automatic operation, continuous online filtration, ending the heavy filter element replacement and cleaning work;
■ No disposable filter consumables are produced, saving the cost of consumables and environmental protection;
■ The filtration pressure loss is extremely small, the flow is stable, the energy consumption is saved, and the process is continuous and stable;
■ Airtight filtration to prevent leakage of dangerous materials, which is beneficial to production and employee health;
■ The discharge waste liquid has high impurity concentration and can be recycled to reduce the loss of high-value materials;
■ A variety of control systems are optional, with powerful functions, high-energy operation and high reliability.
Typical application areas
■ Applicable fields: petrochemical, fine chemical, grease, water treatment, papermaking, etc.
■ Applicable liquid types: resins, coatings, polymers, adhesives, citric acid, fermentation broth, chitosan, cosmetics, agarose (gel), silicone resin solutions, soaps, sorbitol, steroids, corn syrup, wet Auxiliaries, pigments, lubricants, rubber, ethanol, mixed oil, edible oil, high temperature oil, fruit juice, diesel oil, etc.
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Grace
Email:grace@filtrationchina.com
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