Products description:

Pneumatic scraper self-cleaning filter, through the efficient mechanical scraping way to automatically clean the filter particles on the surface, It can be working instantly, No need filter consumables , without frequent manual cleaning, suitable for general and high viscosity liquid filtration.

Traditional manual filter is easily clogged in the filtration of viscous materials and soft impurities, The customer was forced to choose a large filter or frequent back-washing, It’s with large investment, heavy work, and large material wastage, using pneumatic scraper self-cleaning filter can easily solve this problem, and always keep the filter element clean, high concentration of impurities discharged, small material wastage.

Pneumatic Scraper Self-Cleaning Filters are gradually replacing traditional manual filters in many areas such as vibrating screens, bag-type, basket-type filters and some back-washing self-cleaning filters with their significant technical advantages and low life cycle costs.

Spec:

Filter dimension:

Self-cleaning principle:

Filtration status

Liquid flows in from the inlet, the disc-shaped scraper with spring abuts the inner surface of the filter element, stops at the top of the filter element, the liquid passes through the scraper, flows outwards from the inner surface of the filter element, the impurities are trapped on the inner surface, Outflow, as time goes by, impurities gradually increased pressure drop, the blade start to clean the filter element according the pressure differential or setting time.

Cleaning status：

Cylinder-driven scraper cleaning element up and down , When the scraper moves downward , the impurities are scraped and pushed to the bottom of the filter, a large proportion of impurities goes into the collection chamber. When the scraper moves upwards, the residual impurities are scraped off and pushed to the top of the filter element. The impurities are washed away by the flowing liquid, and pass through the scraper to return to the surface of the filter element. When the scraper moves downward, it is scraped away by several times Process, After surface cleaning, It restore the filtration ability, The filter working normally when on self-cleaning , the flow is not interrupted.

Impurities discharge status ：

After some cleaning cycles, the impurities accumulate to a certain amount, and the equipment periodically opens the drain valve to discharge the slag liquid with high concentration of impurities, it can also be recovered if necessary.

Configuration：

V-SLOT filter element :

V-SLOT filter element is a long-slit type opening hole design, the gap is T-shaped opening, not easily stuck by impurities, long-term stable flow, the inner surface of the slit width is the filtration accuracy, uniform slit, high opening rate, The accuracy of the range of 50-1500 microns. suitable for conventional filtration requirements. Internal smooth surface, roundness precision, scraping effect is good, solid structure, durable. 316L material filter, excellent corrosion resistance, can filter more difficult impurities, such as sludge impurities, soft caking impurities.

Filtration rating(um)

ACS series self-cleaning control system:

For the PSS-CF filter, we have developed two dedicated models of ACS control system, economy and high performance type based on Siemens PLC design, running our proprietary program, control the operation of the filter efficiently to fully meet the various requirement of automation and control.

Economy Type- time control type, cleaning cycle and Drain cycle setting by the time period, no pressure gauge

High configuration type- Both pressure and time setting model, the pressure difference reflects the accumulation of filter cake thick and degree of filter element plugging, When pressure differential mode reached the setting pressure differential, start self-cleaning, the recommend cleaning pressure differential value is 50kpa, Usually the value can be 10-100Kpa according to Working conditions. Pressure mode is the most efficient, it is widely used, the time mode can be set in 0-24 hours, When the pressure mode failed, the time mode is still working, highlighting the safety protection of this function, the time period setting should be close to the average of pressure differential mode.

High configuration with three dry contacts, reflecting the power status, cleaning status and fault status, fault feedback including pressure overload, valve switch failure, Whether the blade stuck or not. The implementation of real-time monitoring and timely troubleshooting, to avoid equipment damage , avoiding the drain valve failure leads to material wastage and pressure fluctuation.

There are two kinds of pressure gauge instrument for option. the single pressure transmitter or two pressure transmitter combination detection, The pressure gauge can output real-time pressure value, characterized by high sensitivity, high reliability.

In addition: Designed according to customer specified explosion-proof level, all instruments and control cabinets meet explosion-proof requirements, can be customized based on the Siemens S7-200 PLC control system can also be customized based DCS configuration, support Profibus-DP or Modbus communication protocol

Application:

Application area: Petrochemical, Fine Chemicals, Paper, Food and Beverage, Water Treatment.

Application liquid: Wax, kerosene, polymers, citric acid, fermentation broths, cosmetics, gels, silicone solutions, soaps, sorbitol, steroids, syrups, binders, pigments, lubricants, coatings, resins, latexes, , Edible oil, high temperature oil, fruit juice, diesel and so on