Small Size Internally Rotary Drum Screen for Domestic Sewage Treatment

Small Size Internally Rotary Drum Screen for Domestic Sewage Treatment

Category： Internally Drum Screen
Application: Municipal & Industrial Wastewater Pretreatment
Screen Mesh Size: 0.5mm - 6mm Customizable
Flow Capacity: Up to 500 L/s
Construction Material: 304 or 316 Stainless Steel
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Internally rotary drum screen description

The Internally Fed Rotary Drum Screen utilizes a direct drive system to eliminate the use of belts, chains or sprockets. A combination of stainless-steel shoes and UHMW polyethylene wear strips replace the use of trunnion wheels reducing labor intensive maintenance. The screening panels remove easily for regular cleaning and to allow access inside the drum without disassembling the machine.
Screening panels are available in wedge wire, perforated plate and wire mesh in various opening sizes to optimize debris removal.

Internally rotary drum screen function

The raw water is fed in the internal rotating surface of the screen. Solids remain on the surface of the screen while the liquid goes through the screen. As the screening cylinder rotates, the solids drop off one diverter flight to the next until they reach the discharge. A spraying/backwash system located on the upper half of the unit, will wash off any solids, grease or other materials sticking to the face of the screen and keep the perforation clean.

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. Most efficient screening technology.
2. Capture everything.
3. Structure & Drum in stainless steel.

Internally rotary drum screen feature

1. Screen cylinder of helical-wound wedge wire available in a wide range of diameters and lengths.
2. Screen slot openings 0.005" to 0.250" for a variety of applications.
3. Screen assembly complete with support trunnions, segmented or continuous flighting, drive assembly with shaft mounted drives of variable speed design.
4. Influent headbox designs to handle pumped or gravity flow feed; complete with flow dampening/distribution weir(s).
5. Heavy duty, all stainless steel chassis complete with integral sump and filtrate discharge piping.
6. CIP spray manifold assembly for internal and external cleaning.
7. Variable speed drives.
8. All metal components of Type-304 stainless steel construction unless otherwise specified.

Internally rotary drum screen application

Industrial WWT (incl. Sludge Treatment)
Abattoirs (Slaughterhouses)
Beverage Industry Waste Water
Food Processing & Catering Waste Water
Fruit & Vegetable Processing Waste Water
Pulp & Paper Processing, Starch & By-products Processing
Tanneries, Dyeing Works
Plastics Recycling Industry Waste Water
Livestock Breeding (Manure Treatment)
Municipal Waste Water Treatment (incl. Sludge Treatment)
Clean Water Treatment
Industrial Solid Waste Handling & Treatment / Animal By-products Handling & Processing
Incinerators