1. The conditioned sludge flows into the filter chamber from the
flocculation tank and is pushed forward the discharging end.
2. With the gap between the thread of the shaft is getting higher
and higher, the water is separated from the sludge and flows out
from the gap between the movings and the fixed rings.
3. The movement of the moving rings and the fixed rings cleans the
gap between them and prevent the machine from blockage.
4. The filtered sludge cakes are pushed forward by the shaft and
finally discharged from the end.
