Fernald Silo Remote Retrieval Tool Development

Varma, V K

doi:10.2172/861681

Title: Fernald Silo Remote Retrieval Tool Development

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Abstract

A long-reach tool was developed to remove discrete objects from the silos at the Fernald Environmental Management Project in Ohio. If they are not removed, these objects can potentially cause problems during the retrieval and transfer of waste from the silos. Most of the objects are on top of the Bentogrout cap inside the silos at or near the primary opening into the tank and will therefore require only vertical lifting. The objects are located about 20 ft from the top of the silo. Although most of the objects can be retrieved from 20 ft, the long-reach tool was designed to for a reach up to 40 ft in case objects roll towards the walls of the tank or need to be removed during heel retrieval operations. This report provides a detailed description of the tool that was developed, tested, and demonstrated at the Tanks Technology Cold Test Facility at Oak Ridge National Laboratory. Scaffolding was erected over two experimental cells to simulate the 40-ft maximum working depth anticipated in the silos at Fernald. Plastic bottles and plastic sheeting simulated the debris that could be encountered during waste retrieval operations.

Authors:: Varma, V K

Publication Date:: Tue May 18 00:00:00 EDT 2004

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 861681

Report Number(s):: ORNL/TM-2004/75
TRN: US0604039

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Technical Report

Country of Publication:: United States

Language:: English

Subject:: 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; MANAGEMENT; OPENINGS; ORNL; PLASTICS; TANKS; WASTE RETRIEVAL; WASTES

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                    Varma, V K. Fernald Silo Remote Retrieval Tool Development.  United States: N. p., 2004. 
        Web.  doi:10.2172/861681.

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                    Varma, V K. Fernald Silo Remote Retrieval Tool Development.  United States.  https://doi.org/10.2172/861681

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                    Varma, V K. 2004.  
        "Fernald Silo Remote Retrieval Tool Development".  United States.  https://doi.org/10.2172/861681.  https://www.osti.gov/servlets/purl/861681.

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@article{osti_861681,

  title        = {Fernald Silo Remote Retrieval Tool Development},

  author       = {Varma, V K},

  abstractNote = {A long-reach tool was developed to remove discrete objects from the silos at the Fernald Environmental Management Project in Ohio. If they are not removed, these objects can potentially cause problems during the retrieval and transfer of waste from the silos. Most of the objects are on top of the Bentogrout cap inside the silos at or near the primary opening into the tank and will therefore require only vertical lifting. The objects are located about 20 ft from the top of the silo. Although most of the objects can be retrieved from 20 ft, the long-reach tool was designed to for a reach up to 40 ft in case objects roll towards the walls of the tank or need to be removed during heel retrieval operations. This report provides a detailed description of the tool that was developed, tested, and demonstrated at the Tanks Technology Cold Test Facility at Oak Ridge National Laboratory. Scaffolding was erected over two experimental cells to simulate the 40-ft maximum working depth anticipated in the silos at Fernald. Plastic bottles and plastic sheeting simulated the debris that could be encountered during waste retrieval operations.},

  doi          = {10.2172/861681},

  url          = {https://www.osti.gov/biblio/861681},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue May 18 00:00:00 EDT 2004},

  month        = {Tue May 18 00:00:00 EDT 2004}

}

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