Method for shearing spent nuclear fuel assemblies

Weil, Bradley S; Watson, Clyde D

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Title: Method for shearing spent nuclear fuel assemblies

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Abstract

A method is disclosed for shearing spent nuclear fuel assemblies of the type wherein a plurality of long metal tubes packed with ceramic fuel are supported in a spaced apart relationship within an outer metal shell or shroud which provides structural support to the assembly. Spent nuclear fuel assemblies are first compacted in a stepwise manner between specially designed gag-compactors and then sheared into short segments amenable to chemical processing by shear blades contoured to mate with the compacted surface of the fuel assembly.

Inventors:

Weil, Bradley S ^[1]; Watson, Clyde D ^[2]

Oak Ridge, TN
Knoxville, TN

Issue Date:: Sat Jan 01 00:00:00 EST 1977

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 862953

Patent Number(s):: 4056052

Assignee:: United States of America as represented by United States Energy (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B26 - HAND CUTTING TOOLS B26D - CUTTING

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

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B - PERFORMING OPERATIONS B26 - HAND CUTTING TOOLS B26D - CUTTING
B26D1/0006 - {Cutting members therefor}
B26D2001/006 - {the cutting blade having a special shape, e.g. a special outline, serrations}
B26D2001/0066 - {having shearing means, e.g. shearing blades, abutting blades}
B26D3/16 - Cutting rods or tubes transversely {

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C19/34 - Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing {

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
Y02E30/30 - Nuclear fission reactors

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T83/8772 - One tool edge of tool pair encompasses work [e.g., wire cutter]
Y10T83/9447 - Shear type

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; shearing; spent; nuclear; fuel; assemblies; disclosed; type; plurality; metal; tubes; packed; ceramic; supported; spaced; apart; relationship; outer; shell; shroud; provides; structural; support; assembly; compacted; stepwise; manner; specially; designed; gag-compactors; sheared; segments; amenable; chemical; processing; shear; blades; contoured; mate; surface; metal shell; specially designed; structural support; fuel assemblies; nuclear fuel; spaced apart; spent nuclear; fuel assembly; outer metal; metal tube; chemical processing; chemical process; apart relationship; metal tubes; provides structural; shearing spent; ceramic fuel; apart relation; stepwise manner; /100/72/83/376/976/

Citation Formats


                    Weil, Bradley S, and Watson, Clyde D. Method for shearing spent nuclear fuel assemblies.  United States: N. p., 1977. 
        Web.

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                    Weil, Bradley S, & Watson, Clyde D. Method for shearing spent nuclear fuel assemblies.  United States.

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                    Weil, Bradley S, and Watson, Clyde D. Sat .  
        "Method for shearing spent nuclear fuel assemblies".  United States.  https://www.osti.gov/servlets/purl/862953.

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@article{osti_862953,

  title        = {Method for shearing spent nuclear fuel assemblies},

  author       = {Weil, Bradley S and Watson, Clyde D},

  abstractNote = {A method is disclosed for shearing spent nuclear fuel assemblies of the type wherein a plurality of long metal tubes packed with ceramic fuel are supported in a spaced apart relationship within an outer metal shell or shroud which provides structural support to the assembly. Spent nuclear fuel assemblies are first compacted in a stepwise manner between specially designed gag-compactors and then sheared into short segments amenable to chemical processing by shear blades contoured to mate with the compacted surface of the fuel assembly.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Jan 01 00:00:00 EST 1977},

  month        = {Sat Jan 01 00:00:00 EST 1977}

}

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