Cyclonic destoner

• a destoning tank
• a water recirculating unit
• a dewaterer
• a stone discharge device

The heart of the machine is a cone shaped tank with tangential top discharge channel and central vertical rotating paddle wheel. The efficiency of stone separation is achieved thanks to the combination of:
• the shape of the tank
• the cyclonic effect created by the rotating paddle wheel
• a vertical ascending water current.

The water circulation :
• ascending flow in the tank
• overflowing of water and product through the discharge channel
• is generated by a low speed and a pump driven by electric motor.

The suction of the pump is connected to a collecting tank situated under the dewaterer to evacuate floating waste by constant overflowing and to flush out decanted heavy waste (soil) periodically.

Category:

Description

Dewaterer
According to the volume and type of product to handle, several options are offered :
• Vibrating dewaterer + rinser : (see VIBRATING CONVEYOR section)
• Static dewaterer : it consists of an inclined channel with a grid bottom. Suitable for big products (potatoes – big carrots – turnips – beetroots…)
• Static dewaterer + water cleaner : The same as before but with a rotating perforated drum to filter the water before it falls down into the collecting tank suitable for the same products as above and when the machine is used as a prewasher with dirty product.

Stone discharge devices
According the quantity of stones to evacuate two types of devices are offered :
Manual device : For small quantities of stones (50 to 100 Kg. per hour) a simple tank is bolted under the destoning main tank to collect the stones.

A manual flushing has to be done periodically.
Automatic device : For bigger quantities a rubber belt elevator is used. (see CONVEYING SYSTEM section)

Production
• Carrots – turnips – beetroots – potatoes 10 to 12 Tons per hour
• Green beans   8 to 10 Tons per hour
• Salsifies   6 to   8 Tons per hour

Video

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