Spherical storage containers
Spherical storage containers for radioactive materials, such as plutonium oxides and salts, are comprised of coupled hemispheres joined by helical threads or bayonet connections. The spherical storage containers are supported in a barrel by a vertical strut and laterally extending straps or are supported in cylindrically configured frames.
1. A storage container for storing transuranic hazardous material, comprising:
first and second hemispheres that when coupled to one another enclose a spherical space for containing the transuranic material;
a coupling for joining the first and second hemispheres to one another, the coupling comprising annular rims on the first and second hemispheres, the annular rims having complementary surfaces that engage upon rotating the hemispheres with respect to one another about a common axis with the rims in contact to prevent the hemispheres from being separate; and
a gasket between opposed annular portions of the rims, the gasket being compressed as relative rotation of the hemispheres advances one hemisphere toward the other, and
a support arrangement for the storage container in a barrel wherein the support arrangement includes a vertical strut for holding the storage container spaced relation to a bottom of the barrel and a plurality of straps extending from a rim of the storage container for laterally supporting the storage container is spaced relation to the vertical wall of the barrel.
2. The storage container of claim 1 wherein the coupling comprises complementary helical threads on the annular rims.
3. The storage container of claim 1 wherein the coupling comprises complementary cams on the rims which engage to form a bayonet coupling.
4. The storage container of claim 1 wherein the hemispheres are made of aluminum or stainless steel.
5. The storage container of claim 1 wherein a filtered vent is placed therein to vent gas from the container emitted by the material.
6. The storage container of claim 1 wherein the transuranic material includes solutions and salts of plutonium.
7. The storage container of claim 1 further comprising U-shaped handles on both hemispheres to facilitate rotation of the hemispheres.
8. The storage container of claim 7 wherein the U-shaped handles are pivoted on the hemispheres to fold down toward the hemispheres.
9. The storage container of claim 1 further comprising a frame for supporting the storage container wherein the frame has a flat base and a flat top supported by vertical brackets.
10. The storage container of claim 9 wherein the vertical brackets include strut portions with inwardly facing surfaces that abut and support the hemispheres.
11. A storage container for storing transuranic hazardous material, comprising:
first and second hemispheres that when coupled to one another enclose a spherical space for containing the transuranic material;
a coupling for joining the first and second hemispheres to one another, the coupling comprising annular rims on the first and second hemispheres, the annular rims having complementary surfaces that engage upon rotating the hemispheres with respect to one another about a common axis with the rims in contact to prevent the hemispheres from being separate;
a gasket between opposed annular portions of the rims, the gasket being compressed as relative rotation of the hemispheres advances one hemisphere toward the other, and
a frame for supporting the storage container wherein the frame has a flat base and a flat top supported by vertical brackets, the vertical brackets including strut portions with inwardly facing surfaces that abut and support the hemispheres.
12. The storage container of claim 11 further including a support arrangement for the storage container in a barrel wherein the support arrangement includes a vertical strut for holding the storage container spaced relation to a bottom of the barrel and a plurality of straps extending from a rim of the storage container for laterally supporting the storage container in spaced relation to the vertical wall of the barrel.