The scrapper has a number of streamline profile scrapers welded together to form an
integral frame which moves the bottom deposits towards the discharge funnel.



Application
Rotary Drum Sieve DF SBO is a device used for the mechanical separation of solid bodies from sewage or industrial wastewater. The filtration rotary drum structure ensures efficient screenings separation with minimum water and power consumption. Rotary drum application in filtration reduced required room with preservation of high efficiency.

Functioning
The wastewater enter the device through the inlet chamber, where they get loosened and slowed down. The chamber working capacity is adjusted to ensure equal distribution of wastewater in all the filter surface. Proper separation of solid contamination is obtained with drum shaped slotted sieve being in constant motion. The screenings held  on the internal filter walls are moved quickly, thanks to the rotation, to the comb which cleans the filtering part. The filtered wastewater after flowing through the perforated drum flow down to the lower collection chamber. In order to ensure 100% flow capacity the drum is additionally flushed with water. The sieve may be integrated with wash press or screenings press.

Equipment
- Untrapped inlet chamber.
- Drum slotted sieve of 0,5-6,0mm clearance
- Mechanical and hydraulic sieve cleaning system.
- Screenings discharge
- Power supply – control panel
- Ex version [option].
- Winter package enabling outdoor installation of the device, system operated through signals from two autonomic thermostats (as an option).
- Material: stainless steel. Other materials may be used on demand.

Product features
- Less room necessary
- Wide range of applications
- 100% of screenings of diameter exceeding applied perforation eliminated
- Device compatible with wash press or screenings press
- Simple structure and easy maintenance
- Low investment and operation costs