Removal of structural feature from MEB

Multi Element Bottles (MEBs) which weigh around three tonnes each are used to hold spent fuel assemblies which are then placed in transport flasks and sent to Sellafield for reprocessing.

On arrival, the MEBs are removed from the flask and transferred to a storage pond. Once the fuel has been removed, the MEBs are then exported from the storage ponds and placed in ISO-freight containers, before being sent to the MEB store.

The MEBs need to be decontaminated to reduce activity levels as much as possible, which helps provide a long term solution for their eventual treatment and disposal. Trials with water jetting were undertaken to decontaminate the MEBs and this included the development of two long reach tools to assist with sludge extraction and to remove an internal feature (a tool) from a MEB channel. 

 

Download the MEB long reach tooling case study

 

 

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