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Title: Apparatus for shearing spent nuclear fuel assemblies

Abstract

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.

Inventors:
 [1];  [2]
  1. Knoxville, TN
  2. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863493
Patent Number(s):
4186657
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23D - PLANING
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; shearing; spent; nuclear; fuel; assemblies; method; described; type; comprising; array; pins; disposed; outer; metal; shell; shroud; assembly; compacted; manner; incrementally; sheared; fixed; movable; shear; blades; matched; laterally; projecting; teeth; slidably; intermesh; provide; desired; action; incremental; advancement; cycle; limited; distance; corresponding; lateral; projection; ensure; breakup; uniform; segments; amenable; remote; chemical; processing; metal shell; fuel assemblies; nuclear fuel; spent nuclear; spent fuel; fuel assembly; fuel pins; outer metal; chemical processing; chemical process; type comprising; shearing spent; /100/72/83/376/976/

Citation Formats

Weil, Bradley S, and Metz, III, Curtis F. Apparatus for shearing spent nuclear fuel assemblies. United States: N. p., 1980. Web.
Weil, Bradley S, & Metz, III, Curtis F. Apparatus for shearing spent nuclear fuel assemblies. United States.
Weil, Bradley S, and Metz, III, Curtis F. Tue . "Apparatus for shearing spent nuclear fuel assemblies". United States. https://www.osti.gov/servlets/purl/863493.
@article{osti_863493,
title = {Apparatus for shearing spent nuclear fuel assemblies},
author = {Weil, Bradley S and Metz, III, Curtis F.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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