Description
Internally Rotary Drum Screen Description
The internal feed rotary screen operates very little. Influent water enters through the inlet and flows into the headbox. The headbox is filled with water and the inlet overflows onto the weir and contacts the sides of the rotating cylinder screen. When the incoming water hits the rotating screen, the solids are trapped in the cylinder and the liquid enters the process through the screen or continues to be processed. A splitter on the cylinder moves the solid along the length of the screen for discharge. The device is equipped with spray bars head to clean the screen.
Reliable fine screening with maximum separation efficiency,Operating reliability for membrane bioreactors,Max retention of fibres and hair,Max COD / BOD5 reduction rates.
Rotating Drum Screen is composed of drum screen, support roller unit, drive mechanism unit, backwash cleaning system, discharge mechanism, cover plate assembly, maintenance door, frame and filtrate collection hopper.
Internally Rotary Drum Screen Model
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DIRD
Model
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Drum size | Physical Dimensions(mm) | Power |
Weight
(Kg)
|
Capacities(m3/h) | Sludge height | ||||
| mm | L | W | H | KW | 1mm | 2mm | 3mm | mm | ||
| IRD6-900 | Ø600x900 | 1900 | 1350 | 1700 | 0.55 | 630 | 15 | 25 | 30 | 500 |
| IRD6-1200 | Ø600x1200 | 2200 | 1350 | 1700 | 0.55 | 820 | 30 | 50 | 60 | 500 |
| IRD6-1500 | Ø600x1500 | 2500 | 1350 | 1700 | 0.75 | 1000 | 45 | 70 | 85 | 500 |
| IRD6-1800 | Ø600x1800 | 2800 | 1350 | 1700 | 0.75 | 1160 | 60 | 100 | 120 | 500 |
| IRD6-2100 | Ø600x2100 | 3100 | 1350 | 1700 | 1.1 | 1300 | 80 | 135 | 170 | 500 |
| IRD9-1200 | Ø900x1200 | 2300 | 1600 | 2200 | 1.1 | 1200 | 40 | 70 | 85 | 600 |
| IRD9-1800 | Ø900x1800 | 2900 | 1600 | 2200 | 1.1 | 1470 | 80 | 135 | 170 | 600 |
| IRD9-2500 | Ø900x2500 | 3600 | 1600 | 2200 | 1.5 | 1800 | 120 | 200 | 250 | 600 |
| IRD9-3000 | Ø900x3000 | 4100 | 1600 | 2200 | 1.5 | 2100 | 160 | 270 | 350 | 600 |
Internally Rotary Drum Screen Feature
High throughput capacity – maximum separation
Efficiency
Easy maintenance
Low operation costs
Low life-cycle costs
Optional high pressure cleaning reduces maintenance requirements
Various possible applications
Maximum corrosion protection through stainless steel
Design and acid treatment in a pickling bath
Internally Rotary Drum Screen Application
Industrial and municipal applications
Primary and secondary treatment stage
Protection of membrane plants
Replacement for primary settlement tank
Load reduction in the biological treatment system
Through reduction of COD / BOD/ AFS
Screening in the inlet to power plants
Treatment of cooling water circuits
Brewery wastewater
River and sea outfall
Surface and river water screening
