EMO strong of its long history of designing and manufacturing dewatering technology, has developed its own range of sludge screw presses: more efficient and maintenance friendly machines.
All sludge screw presses OMEGA SSP conception has been given to equipment life time, performance, low operational cost and easiest parts replacement.
ADVANTAGES
- Carbon steel or stainless & robust manufacture
- Wide adjustable pressure for more application
- Low rotation speed (<1 tr/min)
- Low power consumption ( < à 10 kW for the biggest machines)
- Smart conception of easiest maintenance
- Fits in same location than decanter centrifuge for replacement
OMEGA SSP EMO sludge screw press
OPERATING PRINCIPLE
Polymer is injected into the main feed pipe upstream of the screw press. Preliminary flocculated sludge is fed into vertical flocculation tank properly designed to assure required contact time. From this floc tank equipped with pressure sensor to regulate screw press operation, flocs are fed to the screw press feed side.
First part of the screw press is under a small pressure to help the free water to go through the perforated plate of the drum. When the screw rotates, screw seal cleans the hole of the drum grid.
Screw shaft is conical all along the length and reduces the space between the filtering grid and the screw shaft along the dewatering process. Seal, in the last dewatering section of the screw, helps the cake to not flush back into the drum, and forces sludge to the end discharge end.
At the end of the dewatering process, a pressure adjustable conical ring comes to apply pressure on dewatered sludge to reach the final dryness. Sludge falls from this conical ring.
Note: feed pressure and discharge counter pressure are adjustable.
