Apparatus, system and method for low profile translation of high level radioactive waste containment structure

• US 8,345,813 B2
• Filed: 01/31/2008
• Issued: 01/01/2013
• Est. Priority Date: 01/31/2007
• Status: Expired due to Fees

• Current Assignee: Holtec International, Inc.
• Original Assignee: Holtec International, Inc.
• Inventors: Singh, Krishna P.
• Primary Examiner(s): PALABRICA, RICARDO J
• Application Number:
  US12/024,071
• Publication Number:
  US 20120306172A1
• Time in Patent Office: 1,797 Days
• Field of Search: 376/272, 376/260, 250/505.1
• US Class Current: 376/272
• CPC Class Codes: G21F 5/14 Devices for handling containers or shipping-casks, e.g. transporting devices loading and unloading, filling of containers cranes, load-engaging elements or devices for cranes, capstans, winches or tackles B66C

Abstract

An apparatus, system and method for handling and translating a spent nuclear fuel storage cask. The apparatus comprises a body for supporting the cask close to the ground so that the cask and the apparatus can pass underneath over head doors. The apparatus further comprises rollers for translating the cask, the rollers adapted to move between a retracted position and an extended position, wherein when the rollers are in the retracted position, the rollers do not contact a ground surface. The apparatus additionally supports the storage cask during spent nuclear fuel transfer procedures.

Claims

1. An apparatus for translating a payload comprising:

a body for supporting the payload, the body comprising a cavity for receiving the payload, the body comprising;

an annular ring plate having an inner surface forming the cavity about an axis for receiving the payload;

an upper plate having an opening, the upper plate connected to a top end of the annular ring plate and extending radially outward from the annular ring plate; and

a lower plate having an opening, the lower plate connected to a bottom end of the annular ring plate and extending radially outward from the annular ring plate;

the openings of the upper and lower plates in axial alignment with the cavity and each other; and

a plurality of support members for supporting the payload, the support members extending radially inward into the cavity;

a plurality of rollers movable between a retracted position and an extended position, the plurality of rollers located radially outside of the cavity;

wherein when the rollers are in the extended position, the rollers contact a ground surface and the body does not contact the ground surface; and

wherein when the rollers are in the retracted position, the rollers do not contact a ground surface and the body contacts the ground surface.

2. The apparatus of claim 1 wherein each of the plurality of rollers is connected to a jack, wherein the jacks move the rollers between the retracted position and the extended position.

3. The apparatus of claim 2 further comprising two sliding plates that prevent the rollers from pronating or supinating when the apparatus is in motion.

4. The apparatus of claim 1 further comprising a plurality of shims for adjusting a height of the apparatus.

16. The apparatus of claim 1 wherein the upper plate does not extend radially inward into the cavity.

17. The apparatus of claim 1 wherein the annular ring plate extends through the openings of the upper and lower plates.

5. An apparatus for translating a cask comprising:

a body comprising;

a ring, plate having an inner surface forming a cavity about an axis for receiving the cask;

an upper plate having an opening, the upper plate connected to the ring plate and extending radially outward from the ring plate, the opening of the upper plate in axial alignment of the cavity; and

a lower plate connected to a bottom end of the ring plate and extending radially outward from the ring plate;

a plurality of support members for supporting the cask, the support member connected to the bottom end of the ring plate and extending radially inward into the cavity, the support members being non-movable with respect to the body; and

a plurality of rollers for translating the apparatus.

6. The apparatus of claim 5 wherein the support members are arranged in a circumferentially spaced-apart manner about the axis.

7. The apparatus of claim 6 wherein each of the support members comprises a contact plate and at least one L-shaped support plate, the L-shaped support plate having, a portion extending radially inward into the cavity, the contact plate connected to the portion of the L-shaped support plate extending into the cavity.

8. The apparatus of claim 7 wherein the ring plate further comprises a plurality of cutouts, the portions of the L-shaped support plates extending into the cavity through the cutouts in the ring plate.

9. The apparatus of claim 8 wherein each of the support members comprises three L-shaped support plates.

10. The apparatus of claim 5 further comprising a plurality of reinforcement plates extending from the outer surface of the ring and connected to a bottom surface of the upper plate and a top surface of the lower plate.

11. The apparatus of claim 5 further comprising a plurality of removable shims for adjusting a height of the apparatus.

12. The apparatus of claim 5 wherein the ring plate is a single annular plate structure.

13. The apparatus of claim 12 further comprising two plates that prevent the rollers from pronating or supinating when the apparatus is in motion.

14. The apparatus of claim 5, wherein the rollers are movable between a retracted position and an extended position;

wherein when the rollers are in the extended position, the rollers contact a ground surface and the body does not contact the ground surface; and

wherein when the rollers are in the retracted position, the rollers do not contact a ground surface and the body contacts the ground surface.

15. The apparatus of claim 5, wherein the rollers comprise a first pair of rollers and a second pair of rollers, the first and second pairs of rollers located radially outside of the cavity, the second pair of rollers located, on an opposite side of the cavity than the first pair of rollers.

18. The apparatus of claim 5 wherein the cavity and the openings of the upper and lower plates define an axial passageway that extends through an entirety of the body.

19. The apparatus of claim 5 wherein the ring plate extends through the opening of the upper plate.

20. An apparatus for translating a cask comprising:

a body comprising;

a ring plate having an inner surface forming a cavity about an axis for receiving the cask;

an upper plate having an opening, the upper plate connected to the ring plate and extending radially outward from the ring plate, the opening of the upper plate in axial alignment of the cavity; and

a lower plate connected to a bottom end of the ring plate and extending radially outward from the ring plate;

at least one contact plate connected to the bottom end of the ring plate by a plurality of support plates, the contact plate located within the cavity and being non-movable with respect to the body; and

a plurality of rollers for translating the apparatus.