The organically laden water flowing in from the top adheres to the tulip wall and is diverted to the horizontal below water surface by the Coanda-Effect. 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%.

Advantages and characteristics
      1. Compact structure, light weight;
      2. High efficiency;
      3. Stable operation, high reliability;
      4. Less maintenance;

Scope of application
      It can be used as a supporting equipment of various sand settling ponds for separating sand and other granular solid substances with large proportion in sand-containing sewage.

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