Rotary Drum Screen
A wedge wire drum with mesh sized to the process turns slowly and without pauses. Spray nozzles keep it clean as it runs, and an integrated screw conveyor carries the retained solids out.
The rotary drum screen is used in the mechanical stage of wastewater treatment to separate suspended solids and fine particles from the flowing liquid. It serves both municipal and industrial treatment plants wherever small particles have to be retained with precision.
The core of the unit is a cylindrical drum made of wedge wire pipe. The drum is mounted on a frame and driven by a motor that keeps it in slow, continuous rotation. The unit also carries a spray system (washing nozzles) and an integrated screw conveyor for the separated solids.
Working continuously and automatically, and thanks to the spray self-cleaning system, the unit has low operating requirements.
A further advantage is that the aperture size can be matched to the process requirements of the treatment plant.
- Cylindrical drum made of wedge wire pipe
- Drum mounted on a frame, motor driven
- Slow, continuous rotation of the drum
- Spray system with washing nozzles (self-cleaning)
- Integrated screw conveyor for the separated solids
- Aperture size matched to the process requirements of the plant
- Continuous, automatic operation
| Parameter | Value |
|---|---|
| Application | mechanical stage of wastewater treatment, municipal and industrial plants |
| Retained fractions | suspended solids and fine particles |
| Screening element | cylindrical drum of wedge wire pipe |
| Drive | motor, slow continuous rotation |
| Drum cleaning | spray system (washing nozzles) |
| Solids discharge | integrated screw conveyor |
| Aperture size | selected to the process requirements |
| Operating mode | continuous, automatic |
Size, capacity, and materials are selected to match the nature and volume of the wastewater. Technical parameters are provided in the quotation.
Cylindrical Screen
Wastewater is fed into the drum, whose trapezoidal bars hold a fixed 0.5 mm aperture. Cleaning knives lift the screenings, and pressure washing runs in cycles once the liquid reaches the set level.
View equipment
Belt Filter
Continuous filtration of suspensions on a filter belt.
View equipment
Grit and Screen Separator
Three stages of preliminary treatment in one unit: screenings removal, sand separation, and dewatering of both fractions.
View equipment