Method, unit and installation for regenerating foundry sands by means of calcination

摘要

- Foundry - The regeneration unit is characterised in that: - the supply means (19) feed sand to the bottom part of the furnace (1), - the extraction means (22) take up the regenerated sand from the upper level of the fluidised bed, - the heating means (30) provide static heating, - the fluidisation (fluidification, fluidised bed sintering) means consist of nozzles (14) for injecting a fluid. - Application to sands containing resins. <IMAGE>