Rotary mechanical regeneration unit

Because of the low quality of secondary regenerated sand, it is necessary during de-coring and sand collection to identify the amount of regenerated sand and its origin (e.g. number of cycles), and to then discard any unusable sand. 

Due to the high costs and relatively low regeneration ratio, depreciation of the installation in a reasonable time can only be guaranteed for plants with a capacity 2500 tonnes/yr. 

The processing cost of this technique for the German example plant is around EUR 60/toime. This high cost was the reason one operator closed his plant down and went back to the disposal of the water glass sand, which he could do for the lower cost of EUR 30Aonne. 

The reported operational cost by the Spanish example plant is EUR 10/toime. 

To enable the regeneration of water glass sand, which has a good enviromnental performance in certain applications. 

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