Drum screen is a proven fine screening scheme for municipal wastewater with high flow and low solid content.
This drum screen is also commonly used in clarifier scum screening operations.
The drum screen is made of stainless steel including chains and sprockets and other components which are often overlooked.
The material of the rotary screen is designed according to the requirements of inlet water and downstream wastewater treatment process.
The wedge-shaped wire or perforated drum rotates on ultra-high power trunnion wheels with sealed inner bearings for extended periods of time that require maintenance.
Operation Method Of Drum Screen
After the water enters the flow, the energy of the water in the flow box is dissipated, and the flow is evenly distributed on the inner wall of the rotating sieve cylinder.
Solids remain on the screen surface, while liquids flow radially through the screen hole.
The splash guard directs the liquid filtrate to the central drainage area and the solids are conveyed through the flight axis to the open end of the rotary drum screen.The rotating internal feed drum screen allows the entire screen surface to be intermittently cleaned by a fixed external spray rod with a row of nozzles.
The Benefits Of The Roller Screen
The drum screens are carefully screened to protect sensitive downstream processing processes.
Rotary screens are specially designed to provide membrane bioreactor protection.
It is designed for pump flow, no civil channels required.
It can be customized to the specific needs of existing infrastructure and wastewater treatment processes.
Characteristics Of The Drum Screen
All 304 stainless steel construction includes base frame, Fixed outer spray strip, totally closed system, access panel, Robust frame design - fully welded and leak-free
