Apparatus for shearing spent nuclear fuel assemblies
Patent
·
OSTI ID:5358564
A method and apparatus are described for shearing spent nuclear fuel assemblies of the type comprising an array of fuel pins disposed within an outer metal shell or shroud. A spent fuel assembly is first compacted in a known manner and then incrementally sheared using fixed and movable shear blades having matched laterally projecting teeth which slidably intermesh to provide the desired shearing action. Incremental advancement of the fuel assembly after each shear cycle is limited to a distance corresponding to the lateral projection of the teeth to ensure fuel assembly breakup into small uniform segments which are amenable to remote chemical processing.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4186657
- OSTI ID:
- 5358564
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
050800* -- Nuclear Fuels-- Spent Fuels Reprocessing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
BWR TYPE REACTORS
EQUIPMENT
FUEL ELEMENTS
HEAD END PROCESSES
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTORS
REPROCESSING
SEPARATION PROCESSES
SPENT FUEL ELEMENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
BWR TYPE REACTORS
EQUIPMENT
FUEL ELEMENTS
HEAD END PROCESSES
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTORS
REPROCESSING
SEPARATION PROCESSES
SPENT FUEL ELEMENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS