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US 8,246,916 B2Granted
Evaporator/calciner
AssigneeAtomic Energy of Canada Limited
InventorsKenneth James Franklin, Andrew Donald Kettner, Bruce Wayne Hildebrandt, Howard Charles Jessup, Jr.
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Abstract
Disclosed herein is provided an evaporator/calciner in which hazardous materials, such as radioactive liquids, are converted into chemically stable, solid forms by evaporating, drying and calcination within a single vessel, that can then be sealed and used for long term storage.
Claims13
An evaporator device comprising a containment vessel adapted to be placed in heat exchange transfer relation with a first external source of heat;
- said containment vessel comprising a fluid inlet;
- an elongated passageway;
- a collection chamber;
- and an exhaust outlet;
- the vessel being cylindrical and the elongated passageway being of generally helical configuration disposed about the inner wall of said containment vessel;
- said fluid inlet adapted for connection to a source of liquid material to be concentrated;
- said elongated passageway in fluid communication at one end with said inlet and at the other end with said collection chamber, and in heat transfer relation with said first external source of heat whereby said liquid material flowing in said passageway is converted into a gaseous phase and a concentrated liquid phase;
- means for directing said gaseous phase from said passageway into said collection chamber and for directing said concentrated liquid phase from said passageway onto the walls of said collection chamber;
- said exhaust outlet being in fluid communication with said collection chamber for conducting said gaseous phase out of said containment vessel.
6 more elements
Dependencies are inferred from the claim text.