Prewasher with Destoner
Effectively separates stones from potatoes
Before peeling, removing stones and careful washing of the potatoes is essential. The cyclone destoner rotates the water conveying the potatoes to the prewasher. The higher density stones sink to the bottom of the tank where they are collected and removed.
The potatoes are then washed in a drum. Effective washing of the potatoes is essential in minimizing the risk of sand, clay and other foreign material to be problematic for further processes. Poor washing will result in constant replacement of seals, gaskets and other components resulting in increased maintenance costs.
The PPM Technologies Prewasher with Cyclone Destoner has the optimal angle and water velocity to achieve effective separation of the stones and potatoes. The stones are either collected in a box for later removal or continuously removed via a stone elevator. The optional stone elevator can be mounted at any desired angle.
The washing drum is driven by X-cross mounted belts eliminating bearings from being in contact with the water. Fresh water is added to the system through a number of spray nozzles along the drum. And, an overflow valve is supplied to easily adjust the water level in the washer. The unit is available in capacities between 6 to 20 ton/h.
Advantages
- Consistent, accurate performance
- Customized elevation to suit your process line
- Easily remove stones and sand through trap doors
- High removal efficiency