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US 7,503,188 B2Granted
Vitrification furnace with dual heating means
AssigneesCommissariat A L' Energie Atomique, Compagnie Generale des Matieres Nucleaires
InventorsChristophe Girold, Lionel Bruguiere, Roger Boen, Armand Bonnetier, Louis Bojat
Life of this patent
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Abstract
Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a liquid circulating in internal channels. The inductor is placed below the sole plate. There is a gravity drain valve at the bottom or on the side.
Claims9
Vitrification furnace comprising:
- a crucible;
- and
- at least one oxygen plasma torch on an upper part of the crucible and at least one inductor winding outside the crucible, the oxygen plasma torch configured to create an oxidising atmosphere in the furnace, characterised in that the inductor winding is arranged under the crucible.
Dependencies are inferred from the claim text.