Twin Cone Decanter Centrifuge
Using the Twin Cone Decanter Centrifuge, it is possible to achieve the requirements for optimum dewatering. The slurry supplied to the feed pipe is accelerated in a relatively small bowl diameter which is sufficient for the required clarification. Small diameter means low power consumption for acceleration.
The sedimented solids of the clarification zone is thickened in a short cone section (first cone of the TCD). The sump level is variable by an adjustable weir, without influence on drying cone.
The thickened solids are discharged over the rim of the first cone into the much larger second drying cone. Here the cake is re-orientated and the solid cake is broken-up und re-distributed. The larger second cone allows the cake to be situated so that the solids do not fill the area completely between screw (scroll) flights.
- Clarification and drying in two separately designed and differently proportioned bowl units.
- Separate and therefore optimum adjustments of the sump levels for clarification and drying.
- No negative compromises between clarification and drying zones.
- The second cone provides a larger volume and lower scroll flight loading between the flights.
- Optimum removal of residual liquids from the thickened cake in the second, high "g"-force and high volume drying cone