Dry transfer of spent nuclear rods for transporation

Details Dry transfer of spent nuclear rods for transporation Dry transfer of spent nuclear rods for transporation

1993-07-30

1994-06-07

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

Storage container systems for new and/or irradiated core...

376262, G21C 1900

Patent

active

053196864

ABSTRACT:
The spent nuclear fuel rods stored in a wet pit are extracted dry and transported dry to a transport container for dry transportation to a storage area or treatment center. The spent nuclear fuel rods are withdrawn from the wet pit, held within a cask that may be selectively closed at the bottom and transferred while the rod is dry after it is removed from the wet pit and then positioned over a dry container with an open top for a dry transfer of each of the rods to the container. Between the container and the cask is a closure that includes a shield plug and a shielding base that supports the shield plug and allows the shield plug to be moved on guide rails to the position above the open top of the container where the shield plug may then be raised allowing the shielding base to be moved out of position on the rails and the shield plug lowered to close off the container.
Selective positioning and inspection of each rod in the cask into a cell in the container is accomplished by either or both the rotation of a rotatable locator plate located between the cask and the container having an access opening smaller than the opening into the container or the reorientation of the cask with respect to the container using alignment pins on the locator plate to mate with bores in the bottom of the cask.

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