Cost-Effective Externally Fed Screens for Simple Solids Removal

Externally Fed Screens Description

Externally Fed Rotary Drum Screens are automatic self-cleaning inclined screens based on the needs of the wedge section is fabricated from sheet or prefabricated grid.

Externally Fed Rotary Drum Screens works to the principle of the screening of the particules on the surface of the screen as outwash type.

Externally Fed Drum Screen Function

Waste water is conveyed through a distributor onto the external surface of the drum screen. The side sealing consists of nylon sliding blocks.
Solids are retained on the external surface of the drum screen and subsequently discharged. The drum is cleaned by means of a brass plate.
After passing through the inside of the drum screen, clean water is collected on the bottom of the tank and discharged through a nozzle.
Rotation of the filter occurs by coupling connection to a gear reducer mounted at the end of the drum.
At the opposite end a cleaning system is installed. The system is composed of a pipe equipped with a high pressure nozzle which periodically cleans the filtering drum (mobile washing system). The system has to be connected to the water mains.

Externally Fed Screens Advavtage

• Compact design, easy to install in narrow spaces / aerial channels
• High flow rates
• Self-cleaning
• User-friendly
• Low energy consumption and limited maintenance

Externally Fed Screens Feature

• Municipal wastewater pretreatment
• Industrial solids separation
• Sludge screening applications

Externally Fed Screens Application

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