Flow rates: up to 1000 m3/h (can be higher on request)
Filtration degrees: 50 to 2000 micron (20 micron also available on some models)
Max. temperature: 100°C
Working pressure: 2 to 40 bar
Viscosity: up to 150 cPo
Filtration of low to medium viscosity liquids: industrial water, water from wastewater treatment plants, drilling water, petroleum products, paints, food liquids, etc.
This type of self-automatic scraper filter can be used in many industrial applications. The most common applications involve water treatment processes, but they can also be extended to viscous liquids (up to 16000 cP) such as sugar, syrup, oils, resins,…
This filter is well suited for liquids with a high solids content.
THE FILTER IS CONSTRUCTED AS FOLLOWS
- 2 chambers: a pre chamber with the liquid to be filtered (in brown on the drawing) and a second chamber with the filtered liquid (in blue on the drawing)
- 1 filter medium – slotted screen type (or perforated plate for highest filtration fineness) that forms the boundary between the two chambers
- Cleaning system consisting of a spiral brush with fibers made of polyamide (nylon) or stainless steel 304L
- Cleaning system with scraper blades is also possible
- 1 motorization that allows the rotation of the cleaning system
- The liquid enters the filter through the inlet, passes the filter medium (the filter screen) from inside to outside, and exits the filter through the outlet. The pollutants contained in the liquid are retained on the internal surface of the filter.
HOW DOES THE FILTRATION WORK
Filtration occurs from the inside to the outside through a slotted screen. Trapezoidal profiles are welded to a frame at the desired distance from each other to determine the filter degree. The liquid particles that are larger than the distance between the profiles are stopped and cannot get through.
HOW THE CLEANING WORKS
The filter is cleaned continuously and without interrupting the process. Brushes or scrapers are mounted on a spiral-shaped metal frame which, by means of a rotating movement, removes the dirt particles left on the inside of the surface and takes them down with it (= scraping the dirt particles from the surface).
The impurities are directed to the bottom of the filter and are discharged by regular purgation using a manual or automatic valve.
- self-cleaning system scraped or brushed in internal or external surface
- no interruption of flow/process
- exists in carbon steel, brass or stainless steel
- available with motor for continuous cleaning, cyclic rinsing
- little maintenance
- Electric or pneumatic motorization
- Breather valve with or without actuator
- Control box