Full Bridge Type Rotating Scraper
From Domestic Sewage
Full Bridge Rotating Scraper (Clarifier) is designed and used in all sedimentation tanks (primary & secondary sedimentation). In general manner it is mainly used to treat domestic and industrial effluent containing heavy wastes that could rapidly settle and that the slurry can be removed as it is formed.
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Mechanical Construction:
The bridge itself is made of a hollow section girder to which the protective guard rail is fixed. The bottom scraper, the central chamber and the surface scraper are fixed to the beam.
In the centre of the unit, the bridge rests on the pivot which consist of twin effect thrust roller bearing. To this in turn a ring connector is fixed, providing the electrical supply to the drive head.
The drive is insured by a geared motor properly sized to deliver the necessary torque. A peripheral saw toothed outlet weir enables to clear the clear water and a scum baffle traps the scum and helps the collection and discharge into the scum box. All mild steel materials are galvanized & epoxy coated as standard production.
Equipment Scope & Specification:
- Bottom Scraper: Mild Steel Epoxy coated or Aluminium
- Diffusion Drum: FRP/Mild Steel/Aluminium
- Toothed Outlet Weir: FRP/Aluminium/Mild Steel Galvanized
- Walkway: Galvanized steel/ Aluminium
- Surface Scum Skimming Blade: Mild Steel/Aluminium
- Scum Boxes: Mild Steel
- Scum Baffle: Mild Steel/FRP
- Collecting Scum Basket: Mild Steel/Stainless Steel
- Diffusion Drum: FRP/Galvanized Steel
- Control Panel: IP55/IP66
- Wheel: 2 per carriage
- Handrail: Mild Steel, Galvanized or Aluminum W/
- Outlet channel cleaning brush device: Lower & Upper Bar
- Clarifier Tank: GLS / Concrete from 5 to 40m diameter
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