Large Capacity Internally Rotary Drum Screen for Paper Mill Wastewater Treatment

Large Capacity Internally Rotary Drum Screen for Paper Mill Wastewater Treatment

Category： Internally Drum Screen
Self-Cleaning: Yes, with High-Pressure Spray Nozzles
Spray Water Pressure: 4 - 6 Bar
Reduced Maintenance: Anti-Clogging Design
Accessory: Integrated Splash Guard & Collection Tray
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Internally rotary drum screen description

It is a rotary drum screen that has been specifically designed for heavy pretreatment applications, including municipal wastewater, mud thickening, septic receiving stations, and

food processing facilities.

This product is especially well-suited for use in membrane bioreactor (MBR) treatment plants.

It is fed internally and features a pinion-and-rack driving system.

It is highly reliable, requiring minimal maintenance and little user involvement in day-to-day operation.

Internally rotary drum screen function

The filter is fed through a nozzle placed on the machine inlet.

It is cleaned by means of a washing system made up of a tube equipped with pressurised water spray nozzles.

During operation, water is conveyed towards the outlet placed in front of the machine, while screenings are conveyed by the spiral to the outlet at the back of the screen.

A special 5-degree incline angle towards the outlet contributes to dewatering the screenings while they are conveyed.

The screen is equipped with by-pass nozzles which protect the filter from overflow.

Internally rotary drum screen model

DIRD Model	Drum size	Physical Dimensions(mm)			Power	Weight (Kg)	Capacities(m³/h)			Sludge height
DIRD Model	Drum size	L	W	H	Power	Weight (Kg)	1mm	2mm	3mm	Sludge height
IRD6-900	Ø600×900	1900	1350	1700	0.55	630	15	25	30	500
IRD6-1200	Ø600×1200	2200	1350	1700	0.55	820	30	50	60	500
IRD6-1500	Ø600×1500	2500	1350	1700	0.75	1000	45	70	85	500
IRD6-1800	Ø600×1800	2800	1350	1700	0.75	1160	60	100	120	500
IRD6-2100	Ø600×2100	3100	1350	1700	1.1	1300	80	135	170	500
IRD9-1200	Ø900×1200	2300	1600	2200	1.1	1200	40	70	85	600
IRD9-1800	Ø900×1800	2900	1600	2200	1.1	1470	80	135	170	600
IRD9-2500	Ø900×2500	3600	1600	2200	1.5	1800	120	200	250	600
IRD9-3000	Ø900×3000	4100	1600	2200	1.5	2100	160	270	350	600

Internally rotary drum screen advantage

1. External spray bar and brush designed to assure excellent washing.

2. Internal solids removal spiral.

3. No by-pass issues due to special screen design.

Internally rotary drum screen feature

1. Different sizes available.
2. Standard perforated media spacing: 1 ~ 6mm.
3. Recommended spacing for MBR application: 1 ~ 3mm.
4. Full covering ensuring safe, dry, odour-free operation.
5. Screen manufactured from 304 L / 316 L SS.