Drumtec

Rotary Drum Screen

Drumtec is an internally fed rotating drum screen built for heavy pretreatment applications such as draining, mud thickening, and sandy or industrial wastewater treatment. This product is highly recommended for membrane bioreactor (MBR) treatment plants.

Drumtec is an internally fed rotary drum screen with a pinion-and-rack driving system. It provides high reliability with minimal maintenance, and little user involvement in daily operation.

OPERATING MODE

Drumtec is an internally fed rotary drum screen. Wastewater flows into the drum, where a deflector divides it evenly. Influent water passes through the perforated plate, which screens solids from the flow. A large flight auger carries the waste to the end of the drum, where it empties into an integrated washer/compactor or directly into a dumpster.





FEATURES AND BENEFITS

1. Simple and Reliable Machinery The gear motor drives a pinion-and-rack system, which rotates the drum. Made of HDPE (High Density Polyethytylene), the mechanism does not require any maintenance (left). Oversized trunnions support the drum, and provide stability during rotation (right).

2. High Capture Rate Because the drum is fed internally, Drumtec catches all sorts of debris such as rocks, grits, organics, wipes, rags, fibers, and the like. The perforated plate provides a high capture rate of materials as small as 800 microns, making Drumtec a great solution for fine screening, specifically with a MBR system.

3. Safe & Easy Access The cover is equipped with a lift handle on each side of the drum. A hydraulic assist mechanism allows a single operator to open the cover. A safety switch automatically stops the drum.

4. Integrated Bypass An integrated bypass is available. If equipped, a sensor stops the drum, and the overflow routes to a tank containing a manual rack.

5. Minimal Maintenance Spray bars provide touch-free cleaning of the inside of the drum. Weekly maintenance consists only of a visual inspection of the drum and the spray bar nozzles. Nozzles are easily removed for cleaning or replacement, when necessary.

6. All-In-One Solution For complete screening treatment, a washer/compactor can be integrated directly at the discharge chute of the drum screen.

SPECIFICATIONS

Performances

• Design flow: Up to 20mgd
• Space bar opening: 1/32’’ to ¾’’ (800microns to 20mm)
• Dry solid concentration = 30%
• Volume reduction > 50 %

Design

Drumtec can be customized based on specifications and/or structural constraints.
Please see design specifications below.

MATERIALS

• 304 or 316 stainless steel
• Surface treatment: Scouring, Passivation
• T.I.G. welding techniques

SPACE REQUIREMENTS - FOOTPRINT Drum Length: 3.28’ to 9’ – 10" 1/8 (1000 to 3000mm) Drum diameter: 2.62’ or 4’ (800mm or 1200mm) Height: 5’ – 4" 15/16 (1650mm) MOTOR CHARACTERISTICS Absorbed power: ¾hp (0.56 KW) Voltage: 240 or 480 VAC Frequency: 60 Hz

CASE STUDIES

Check out our case studies, showcasing the real-life benefits of our Drumtec internally fed drum screen:

• Drumtec - Drum Screen for Wastewater treatment facility in Atlanta

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