DOE 2000. - Waste Isolation Pilot Plant - U.S. Department of Energy

WIPP RH PSAR DOE/WIPP-03-3174 CHAPTER 4
Cask Preparation Station
The cask preparation station is a elevated work platform designed to provide accessability to the road
cask lid area to allow workers to perform unloading and shipment activities such as; radiological surveys,
inspections, and minor maintenance. The cask preparation station work deck is 9 ft 6 in (2.89 m) above
the RH bay floor and straddles the road cask transfer car rails.
The removal/installation of the 72B cask outer lid and installation of the inner lid lift fixture (pintle) is
performed at this location.
10-160B Cask Lid Lift Fixture
The 10-160B lid lift fixture has a pintle and three one inch ball lock pins (Figure 4.2-9). A ball lock pin
is inserted into each of the lid lifting lugs to attach the lift fixture to the 10-160B lid. When the 10-160B
is in the CUR, the lid lifting fixture pintle is engaged by a facility grapple connected to the Hot Cell
crane, then the lid is lifted into the Hot Cell. The 10-160B lid lift fixture is attached to the cask lid by
using either the 140/25 ton crane or the cask preparation station jib crane.
72B Cask Outer Lid Lift Fixture
The outer lid lift fixture is used with the cask preparation station jib crane to remove the outer lid from
the 72B road cask while the road cask is in the vertical position on the 72B road cask transfer car. The
lift fixture is lowered by the jib crane onto the road cask and is attached to the lid.
72B Waste Canisters
The 72B cask waste (payload) canister (Figure 4.2-10) is a DOT Type A (or equivalent) container. It is a
carbon or stainless steel single-shell container with an outside diameter of 26 in (66 cm), a wall thickness
of 0.25 in (0.64 cm), and an overall length of 121 in (3.1 m). It has an inside diameter of 25.5 in (64.77
cm) with an inside length of 108 in (2.74 m). The 0.375 in (0.95 cm) dished head with integral WIPP
standard lift pintle is attached to the shell after the container is filled with waste. The canister is vented
using a suitable filter and can be direct loaded or loaded with three 55-gal (208 L) drums of radioactive
waste, each with a vent filter. It has a maximum weight, including the canister and its waste content, of
8,000 lbs (3628.7 kg).
Facility Canisters
The facility canister is a carbon steel single-shell container weighing approximately 1200 to 1800 lbs
(544.3 to 816.5 kg), it has an outside diameter of 28.5 in (72.4 cm), a wall thickness of 0.25 in (0.64 cm),
and an overall length of 117.5 in (3.0 m). It has an inside diameter of 28 in (71 cm) with an inside length
of 110.5 in (2.8 m). The dished head with integral WIPP standard lift pintle is attached to the shell after
the container is filled with waste drums from a 10-160B cask. The canister can hold three 55-gal (208 L)
drums of radioactive waste. Each drum is vented with a filter and can have a maximum weight of 1000
lb (453.6 kg).
4.2-5 January 28, 2003