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COANDA Grit Classifier RoSF 3 |
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Grit separation and dewatering in one unit
- Utilisation of the COANDA effect ensures high grit removal efficiency
- Partly reduced organic content of the grit
- Completely made of stainless steel
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The grit/water mix flows either by means of a pump or by gravity into the vortex chamber where a rotary motion is induced. An automatic air intake takes place through the centrically located drilling hole on the vortex chamber.
The heart of the Coanda Grit Classifier is the inserted Coanda tulip. The organically laden water flowing in from the top adheres to the tulip and follows its line to the end and thence over the discharge weir. The denser grit sinks to join the existing bed of grit, through which wash water is flowing in a vertically upward direction. Any remaining organics are left in suspension by the waste water and join the incoming flow for discharge over the weir. Reduced radial and tangential flows assist the separation process and the difference in density between organic and mineral material is partly taken into consideration.
The classifier screw transports the clean grit up an inclined plane where it is dewatered under gravity before discharge into a skip. The mineral residue from a plant operating under optimum conditions is in excess of 90% (e.g. a plant with appropriate pre-screening and grit collection facilities).
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HUBER - WHERE QUALITY AND SERVICE SPRING TO MIND
Huber Technology UK, Units C and D Brunel Park
Bumpers Farm, Chippenham Wiltshire SN14 6NQ
Phone +44 1249 765000, Fax +44 1249 449076, E-mail: rotamat@huber.co.uk |
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