Product Information
In fine interception at intakes and pumping stations, traditional fixed screens easily clog with waterweeds and fibers, requiring frequent manual cleaning. The ZSB rotary brush screen is a highly efficient Self-Cleaning Rotary Screen that combines high-precision mesh filtration with continuous rotary brush cleaning. As water passes through the mesh, the rotating brush scrubs off the trapped debris and discharges it, truly achieving unattended, continuous automatic operation.
Get a QuoteSelf-Cleaning Rotary Screen | ZSB Rotary Brush Screen | Rotary Mesh Screen Cleaner
Working Principle
Wastewater flows in from one side of the mesh, passes through the fine openings, and leaves waterweeds, leaves, and fine fibers trapped on the surface. A motor at the top drives a cylindrical nylon or steel brush to rotate. When the brush contacts the mesh, it scrubs off the trapped debris, which is then discharged through a collection trough or screw conveyor at the bottom. This design keeps the mesh surface continuously clean so the flow capacity never drops due to debris buildup.
Application Fields
1.Hydropower and reservoir intakes: acting as a Self-Cleaning Rotary Screen to continuously intercept fine waterweeds and algae, protecting turbines.
2.Municipal stormwater pump stations: automatically clearing hair and fibers to prevent submersible pump entanglement.
3.Paper and textile industries: recovering short fibers and pulp from wastewater.
4.Seawater desalination projects: intercepting small fish and seaweed to protect RO membranes.
FAQ
Q1: If there is a lot of long fiber (like cloth strips or plastic ropes) in the water, will the brush jam?
A: Generally no. The flexible bristles strip long fibers off the mesh, and they are discharged into the collection trough with the flow or a scraper. However, if the long fibers are excessive, it is recommended to install a coarse bar screen upstream for pre-treatment.
Q2: Do the rotary brushes need frequent replacement?
A: No. The bristles are usually made of wear-resistant nylon or special engineering plastics, lasting over 2 to 3 years under normal conditions. Regular checks for severe bending or shedding are sufficient; you only need to replace the individual brush strips or the whole row if necessary.
Q3: How is the flow capacity of the mesh? Will it block water because the gaps are too small?
A: Not if properly sized. Because this Self-Cleaning Rotary Screen takes in water across the entire flow cross-section, the effective open area is typically several times the pipe cross-section. Combined with continuous brush cleaning, the mesh doesn't clog, resulting in minimal head loss.