The design of the inlet section reduces turbulence to a minimum and creates an optimum flow pattern for efficient settling.
The solids settle in the bottom of the classifier which contains a shaftless spiral. The spiral transports the sediment slowly (speeds are kept to around 5rpm to minimise turbulence) to an included or vertical conveyor which then discharges the grit.
Floating material removal
Inlet works in sewage treatment plants - grit and screenings application
Inlet works in sewage treatment plants - grit vortex chamber / classifier
Pulp and paper industry - rejects handling system
Compact, robust design
No intermediate or end bearings are under water
Virtually maintenance free
SPIRAC | Screening, Grit & Sludge Equipment
Municipal screening, grit and sludge handling solutions are our primary focus, but SPIRAC also offers conveying, dewatering and washing solutions for industrial applications. The SPIRAC network of engineers is on hand to collaborate with you right from the start of your project. Our team will ensure that all solutions are manufactured, installed and maintained in compliance with local specifications and best global practice.
And don’t forget, full after sales support is part of SPIRAC’s service.
Shaftless Spiral Conveyor Systems
SPIROTAINER® containment & transport
- Screens (RAKEGUARD raked coarse screen, CHAINGUARD coarse screen, FINEGUARD traveling fine screen, BANDGUARD centre flow band screen, SPIROGUARD®, STEPGUARD®)
- Screenings washing (SPIROWASH®)
- Dewatering & compaction (SPIROPRESS®)
- Grit capture & separation (SANDSEP®, Grit Vortex)
- Grit washing (SANDWASH)
- Silos (Live Bottom & Sliding Frame)