Used Alfa Laval Nozzle Separator CH-30 POF

Used Alfa Laval Nozzle Separator CH-30 POF

Technical specifications
Manufacturer: Alfa Laval
Type: Nozzle Centrifuge CH-30 POF
Manufacturing year: 2002
Max. bowl speed: 3000 rpm
Motor power: 112 Kw
Max. density of feed: 1100 Kg/m3
Max. density of sediment: 1700 Kg/m3
Process temperature min./max. 0-65 ℃

Applications
Nozzle separator CH-30 POF is dedicated starch centrifuge designed for applications in the corn wet milling process. It is used for classification of solids according to size, dewatering and washing of solids. Nozzle separator is intended for clarification of liquids, containing relatively high concentrations of solids. The Nozzle separator CH-30 POF is widely used in the maize starch industry for processes that include primary starch separation, gluten thickening, millstream thickening and middling concentration.

Working principle
The feed, consisting of both liquid and solids, is led into the rotating centrifuge bowl from the top via a stationary inlet. It is then accelerated in a distributor, before entering the disc stack. The actual separation process takes place between the discs, with the liquid phase moving through the disc stack towards the center of the bowl. When it has reached the center, it is then discharged over a power ring. The solids, which are heavier, collect at the periphery of the bowl, and are then continuously discharged through the nozzles. Part of the concentrated solids discharged through these nozzles can be recirculated into the bowl periphery through the return tubes, via the return chamber. The wash water used to free solubles and other impurities from the solids can also be recirculated to the periphery of the bowl the same way. The bowl is mounted on a vertical lower shaft that is driven via belts by a vertically mounted motor.