JP6930451B2 - Radioactive waste refilling device and how to use it - Google Patents

Description

The present disclosure relates to a radioactive waste refilling device and its usage.

Generally, radioactive waste liquid as a liquid to be treated generated in a nuclear facility is mixed with glass melted by a glass melting furnace of a vitrification facility and treated as a vitrified body.

In the vitrification facility, the vitrified body is housed in a small metal export cask and stored in a storage, then carried out of the vitrification facility and stored in a radioactive waste storage facility. ..

Here, the carry-out cask is capable of accommodating three vitrified bodies, but since it is small for long-term storage in the radioactive waste storage facility, it is larger than the carry-out cask for transportation. It is necessary to refill the metal transport and storage cask that also serves as storage. In addition, so-called vault storage, in which spent fuel is filled in a metal canister instead of a cask and stored in a semi-underground facility, has already been implemented in Japan and overseas. Also in the case of the vault storage, the vitrified body needs to be refilled with a transport storage canister larger than the carry-out cask in order to transport the vitrified body over a long distance.

Conventionally, in order to refill the carry-out cask to the transport storage cask, a method has been considered in which a dedicated refill facility shielded from the outside is newly constructed in the radioactive waste storage facility.

For example, Patent Document 1 shows a general technical level related to an apparatus for removing spent nuclear fuel from a cask and transferring it to a basket.

Special Publication No. 64-12357

However, as mentioned above, if a new refill facility is installed, it will be necessary to secure new dedicated land and space for the radioactive waste storage facility, and there will be a problem that the existing building will need to be remodeled. Was.

Incidentally, the invention disclosed in Patent Document 1 is an apparatus for taking out spent nuclear fuel from a cask and transferring it to a basket, and Patent Document 1 does not describe refilling a vitrified material between cask. Further, as a device, the swing arm has a structure in which the swing arm moves pendulum under the partition wall, and a wide space for the swing arm to move in the pendulum must be provided in the water channel, and remodeling of the existing building is unavoidable.

This disclosure is made in view of the above-mentioned conventional problems, and is a radioactive waste refilling device that can secure land and space dedicated to the radioactive waste storage facility and remodel the existing building due to the new construction of the refilling equipment. And its usage is intended to be provided.

In order to achieve the above object, the radioactive waste refilling device of the present disclosure is a radioactive waste refilling device that refills the radioactive waste contained in the carry-out cask into the transport storage cask.
The transport and storage cask has a container body having an opening at the upper end, and one at the axial center in a cross section capable of accommodating a plurality of the radioactive wastes in the axial direction of the container body and orthogonal to the axis. A compartmentalized housing portion formed inside the container body so as to be arranged around a plurality of containers, a shielding plug detachably attached to the upper end insertion port of the compartmentalized housing portion, and the container so as to cover all of the shielding plugs. Equipped with a lid that can be detachably attached to the opening of the main body
The carry-out cask is capable of accommodating the radioactive waste and the shielding plug, and has a body portion having an introduction outlet formed at the bottom for passing the radioactive waste and the shielding plug, and a swivel upper part of the body portion. A lifting mechanism that can suspend and suspend the radioactive waste and the shielding plug, and at least one of the transport and storage casks that can be opened and closed at the introduction outlet. A shutter that communicates with the upper end insertion port of the compartmentalized housing unit can be provided.

The radioactive waste refilling device includes an adapter interposed between the carrying-out cask and the transport storage cask.
The adapter is arranged so as to be rotatable with respect to the opening of the transport / storage cask, and the adapter main body on which the carry-out cask is placed and the introduction outlet of the carry-out cask are the axes of the transport / storage cask. It is possible to provide a passage port bored in the adapter main body so as to communicate with the upper end insertion port of the section accommodating portion of the portion and the upper end insertion port of one section accommodating portion arranged around the upper end insertion port.

Further, the radioactive waste refilling device is provided with an adapter interposed between the carrying-out cask and the transport storage cask.
The adapter body is arranged so as to be rotatable with respect to the opening of the transport / storage cask and movable in a direction orthogonal to the axis of the transport / storage cask, and the adapter body on which the carry-out cask is placed. It is also possible to provide a passage port bored in the adapter body so that the introduction outlet of the carry-out cask communicates with the upper end insertion port of one of the transport storage casks.

On the other hand, as a method of using a radioactive waste refilling device that does not have the adapter,
The lid opening step of opening the lid of the transport and storage cask, and
The carry-out cask mounting process in which the carry-out cask is placed on the transport storage cask so that the introduction outlet matches the position of the upper end insertion port of the compartmentalized housing portion.
A shielding plug opening process in which the shielding plug is lifted by a lifting mechanism to open the upper end insertion port of the compartmentalized housing portion, and
The internal swivel process of the carry-out cask, which swirls the radioactive waste inside the carry-out cask according to the upper end insertion port of the opened compartmentalized housing,
A storage process in which the radioactive waste is suspended and stored in a compartmentalized storage unit,
The process of attaching the shielding plug to the upper end insertion port of the compartmentalized storage unit in which the radioactive waste is contained, and the process of attaching the shielding plug.
After all the compartmentalized compartments are full, the lid mounting step of closing the opening of the container body of the transport storage cask with a lid can be performed.

Also, as a method of using the radioactive waste refilling device equipped with the adapter,
The lid opening step of opening the lid of the transport and storage cask, and
An adapter mounting step of mounting the adapter in the opening of the transport storage cask so that the passage port matches the position of the upper end insertion port of the compartmentalized housing portion.
The carry-out cask mounting step of mounting the carry-out cask on the adapter, and
A shielding plug opening process in which the shielding plug is lifted by a lifting mechanism to open the upper end insertion port of the compartmentalized housing portion, and
The internal swivel process of the carry-out cask, which swirls the radioactive waste inside the carry-out cask according to the upper end insertion port of the opened compartmentalized housing,
A storage process in which the radioactive waste is suspended and stored in a compartmentalized storage unit,
The process of attaching the shielding plug to the upper end insertion port of the compartmentalized storage unit in which the radioactive waste is contained, and the process of attaching the shielding plug.
The adapter removal process, which removes the adapter after all the compartments are full,
A lid mounting step of closing the opening of the container body of the transport storage cask from which the adapter has been removed with a lid can be performed.

According to the radioactive waste refilling device and the method of using the radioactive waste refilling device of the present disclosure, the excellent effect of securing the land and space dedicated to the radioactive waste storage facility and remodeling the existing building due to the new construction of the refilling equipment can be achieved. obtain.

It is a side sectional view which shows the cask for transportation storage in 1st Example of the radioactive waste refilling apparatus of this invention, and the method of use thereof. FIG. 1 is a view taken along the line II-II of FIG. It is a side sectional view which shows the carry-out cask in 1st Example of the radioactive waste refilling apparatus of this invention, and is the figure which shows the state which the shutter is closed. It is an IV-IV arrow view of FIG. It is a side sectional view which shows the carry-out cask in 1st Example of the radioactive waste refilling apparatus of this invention, and is the figure which shows the state which opened the shutter. FIG. 5 is a view taken along the line VI-VI of FIG. It is a schematic of the operation procedure in the 1st Example (2nd Example) of the radioactive waste refilling apparatus of this invention and the method of use | It is a schematic diagram of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of using it, and the carry-out cask is provided so that the introduction outlet matches the compartmentalized storage part of the axis part of the transport storage cask. It is a figure which shows the mounted state. It is a schematic of the operation procedure in 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which lifted up. It is a schematic of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use thereof, and the vitrified body is transferred to the axial core part of the cask for transport storage by turning the lifting mechanism of the cask for carrying out. It is a figure which shows the state which was aligned with the division accommodating part of. It is a schematic of the operation procedure in 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down on a part. It is a schematic of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down in the section accommodating part of. It is a schematic diagram of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state of returning to the upper end insertion opening of. It is a schematic of the operation procedure in 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the unloading cask was removed. It is a schematic diagram of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of the present invention and the method of use thereof, and is the carry-out cask so that the introduction outlet matches the compartmentalized accommodating portion around the axis of the transport storage cask. It is a figure which shows the state which put. It is a schematic of the operation procedure in 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the plug is lifted. It is a schematic of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use thereof, and the vitrified body is transferred to the axial core part of the cask for transport storage by turning the lifting mechanism of the cask for carrying out. It is a figure which shows the state which it was aligned with the surrounding division accommodating part. It is a schematic diagram of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down in the accommodating part. It is a schematic of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which it hung down in the surrounding section accommodating part. It is a schematic diagram of the operation procedure in the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which returns to the upper end insertion opening of a part. It is a schematic of the operation procedure in 1st Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the carrying-out cask was removed after the part was filled with a vitrified body. It is a schematic diagram of the operation procedure in the 1st Example (2nd Example) of the radioactive waste refilling apparatus of this invention and the method of using it, and is the division accommodation part of the axial core part of the transport storage cask, and all the shafts. It is a figure which shows the state which the carrying-out cask was removed after the division accommodating part around the heart part was filled with vitrified waste. It is a schematic block diagram at the time of applying the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use thereof in a vitrification facility. It is a schematic block diagram at the time of applying the 1st Example of the radioactive waste refilling apparatus of this invention and the method of using it in a radioactive waste storage facility. It is a schematic of the operation procedure in 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which mounted the adapter so that the passage port matches. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the carry-out cask is placed so that the introduction outlet may match through the passage port of an adapter. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which lifted up. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | movement | It is a figure which shows the state which was aligned with the division accommodating part of. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down on a part. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down in the section accommodating part of. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state of returning to the upper end insertion opening of. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the unloading cask was removed, and only the adapter was left. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the carry-out cask is placed so that the introduction outlet may match through the passage port of an adapter. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the plug is lifted. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | movement | It is a figure which shows the state which it was aligned with the surrounding division accommodating part. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which hung down in the accommodating part. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which it hung down in the surrounding section accommodating part. It is a schematic of the operation procedure in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which returns to the upper end insertion opening of a part. It is a schematic of the operation procedure in 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use | It is a figure which shows the state which the casque for carrying out was removed, and only the adapter was left after the part was filled with the vitrified body. It is a figure which shows the modification of the adapter in the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of use thereof. It is a flowchart corresponding to the 1st Example of the radioactive waste refilling apparatus of this invention and the method of use thereof. It is a flowchart corresponding to the 2nd Example of the radioactive waste refilling apparatus of this invention and the method of using the same.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 24 are first examples of the radioactive waste refilling device of the present invention and the method of using the same.

In the case of the first embodiment, the radioactive waste 20 contained in the carry-out cask 10 (see FIGS. 3 to 6) is refilled into the transport storage cask 30 (see FIGS. 1 and 2).

The radioactive waste 20 is, for example, a vitrified body 22 obtained by mixing radioactive liquid waste with glass and filling the canister 21 with solidification.

As shown in FIGS. 1 and 2, the transport and storage cask 30 includes a container body 31, a compartmentalized storage section 32, a shielding plug 33, and a lid 34.

The container body 31 is composed of a tubular body 31b having an opening 31a formed at the upper end and a closed bottom.

The section accommodating portion 32 is capable of accommodating a plurality of the vitrified bodies 22 in the axial direction of the container body 31, and is arranged at the axial center portion and a plurality thereof in a cross section orthogonal to the axial line. It is formed inside the container body 31. In the examples of FIGS. 1 and 2, four vitrified bodies 22 are accommodated in one section accommodating portion 32 in the vertical direction, but the number is not limited to four. No. Further, six compartmentalized storage portions 32 are arranged around the one compartmentalized storage portion 32 arranged at the axial center portion of the container main body 31, but the number thereof is limited to six. It's not something.

The shielding plug 33 is detachably attached to the upper end insertion port 32a of the division accommodating portion 32. The upper end insertion port 32a of the division accommodating portion 32 includes a reduced diameter portion 32b whose inner diameter gradually contracts downward, and the lower outer peripheral surface of the shielding plug 33 is formed so as to imitate the reduced diameter portion 32b. ..

The lid 34 is detachably attached to the opening 31a of the container body 31 so as to cover the entire shielding plug 33.

As shown in FIGS. 3 to 6, the carry-out cask 10 includes a body portion 11, a lifting mechanism 12, and a shutter 13.

The body portion 11 has an introduction outlet 11a formed at the bottom thereof, which can accommodate the vitrified body 22 and the shielding plug 33 and allows the vitrified body 22 and the shielding plug 33 to pass through. The body portion 11 can accommodate two vitrified bodies 22 and one shielding plug 33. For example, the body portion 11 accommodates three vitrified bodies 22 and one shielding plug 33. It is also possible to increase the capacity within the range that matches the capacity of the overhead crane on the carry-out side.

The lifting mechanism 12 is configured by attaching a hoist 12b and a hanging tool 12c to a ceiling portion 12a arranged so as to be rotatable at the upper end portion of the body portion 11. As a result, the lifting mechanism 12 is rotatably arranged on the upper part of the body portion 11 so that the vitrified body 22 and the shielding plug 33 can be suspended and suspended. The hoist 12b and the hanger 12c constituting the lifting mechanism 12 are provided in three sets according to the capacity of the body 11, and the body 11 has three vitrified bodies 22 and a shielding plug 33. If one is to be accommodated, four sets may be provided accordingly. Although the mechanism for swiveling the ceiling portion 12a is not particularly shown, for example, a rack is engraved on the outer peripheral surface of the swivel ring, and a pinion meshed with the rack is driven by a motor via a speed reducer. A swivel mechanism or other mechanism can be adopted.

As shown in FIGS. 3 and 4, 5 and 6, the shutter 13 is arranged so as to be openable and closable at the introduction outlet 11a, and the introduction outlet 11a is provided as one division accommodating portion 32 of the transportation storage cask 30. It communicates with the upper end insertion port 32a of the above (see FIGS. 9 and 16). Although the mechanism for opening and closing the shutter 13 is not particularly shown, for example, a drive mechanism for pushing and pulling the shutter 13 with a fluid pressure cylinder or another mechanism can be adopted.

Next, the operation of the first embodiment will be described.

First, as shown in FIG. 7, the lid 34 of the transport storage cask 30 is removed, and the opening 31a at the upper end of the container body 31 is opened. In addition, in FIGS. 7 to 22, the side cross-sectional view and the corresponding plan cross-sectional view are not separately shown, and the plan section is intentionally shown above the side cross-sectional view. This is to make the explanation easier to understand.

Subsequently, as shown in FIG. 8, the carry-out cask 10 is placed on the transport storage cask 30 so that the introduction outlet 11a matches the compartmentalized storage portion 32 at the axial center of the transport storage cask 30. NS. At this point, two vitrified bodies 22 are housed in the carry-out cask 10, and the shutter 13 of the carry-out cask 10 is closed. Incidentally, the reason why the three vitrified bodies 22 are not accommodated in the carry-out cask 10 is to secure a space for temporarily accommodating the shielding plug 33 described later.

In the side sectional views of FIGS. 8 to 20, the hanging tool 12c swiveled to the back side, the vitrified body 22 suspended from the hanging tool 12c, and the shielding plug 33 are intentionally omitted. ..

After that, as shown in FIG. 9, the shutter 13 of the carry-out cask 10 is opened, the shield plug 33 of the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 is lifted, and the shield plug 33 is used for carry-out. It is housed inside the cask 10.

Next, as shown in FIG. 10, the ceiling portion 12a constituting the lifting mechanism 12 of the carry-out cask 10 is swiveled, and the first vitrified body 22 is a divisional accommodating portion of the axial center portion of the transport storage cask 30. Aligned above 32.

Then, as shown in FIG. 11, the hanger 12c is wound down by the hoist 12b constituting the hoisting mechanism 12 of the carrying-out cask 10, and the first vitrified body 22 is the axial center portion of the transport storage cask 30. It is hung from the compartmentalized housing unit 32. When the first vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the next second vitrified body 22 is a cask for transportation and storage. It is aligned above the compartmentalized housing portion 32 of the axial center of 30.

Subsequently, as shown in FIG. 12, the hoist 12b winds down the hanger 12c, and the second vitrified body 22 is hung from the compartmentalized housing portion 32 at the axial center of the transport storage cask 30. When the second vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the shielding plug 33 is attached to the axial center portion of the transport storage cask 30. It is aligned above the compartment 32.

After that, as shown in FIG. 13, the hanger 12c is wound down by the hoist 12b, and the shielding plug 33 is returned to the upper end insertion port 32a of the divisional accommodating portion 32 of the axial center portion of the transport storage cask 30.

Next, the empty carry-out cask 10 is removed, and the carry-out cask 10 newly containing the two vitrified bodies 22 is placed on the transport storage cask 30. Then, when the same operation as that shown in FIGS. 8 to 13 is repeated, two more vitrified bodies 22 are accommodated on the two vitrified bodies 22, and as shown in FIG. 14, The compartmentalized housing portion 32 at the axial center of the transport storage cask 30 is filled with the vitrified body 22.

Subsequently, as shown in FIG. 15, the carry-out cask 10 is placed on the transport storage cask 30 so that the introduction outlet 11a matches one of the compartmentalized storage portions 32 around the axial center portion of the transport storage cask 30. It will be placed. At this point, as described above, in order to secure a space for temporarily accommodating the shielding plug 33, two vitrified bodies 22 are accommodated in the carry-out cask 10, and the shutter 13 of the carry-out cask 10 is accommodated. Is closed.

After that, as shown in FIG. 16, the shutter 13 of the carry-out cask 10 is opened, the shield plug 33 of the compartmentalized accommodating portion 32 around the axial center portion of the transport storage cask 30 is lifted, and the shield plug 33 is carried out. It is housed inside the cask 10.

Next, as shown in FIG. 17, the ceiling portion 12a constituting the lifting mechanism 12 of the carry-out cask 10 is swiveled, and the first vitrified body 22 is separately accommodated around the axial center portion of the transport storage cask 30. It is aligned above the portion 32.

Then, as shown in FIG. 18, the hoist 12c constituting the hoisting mechanism 12 of the carrying-out cask 10 winds down the hanging tool 12c, and the first vitrified body 22 is around the axial center of the transport storage cask 30. It is hung from the compartmentalized housing portion 32 of the above. When the first vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the next second vitrified body 22 is a cask for transportation and storage. It is aligned above the compartmentalized housing portion 32 around the axis of 30.

Subsequently, as shown in FIG. 19, the hoist 12b winds down the hanger 12c, and the second vitrified body 22 is hung from the compartmentalized housing portion 32 around the axial center portion of the transport storage cask 30. When the second vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the shielding plug 33 is around the axial center of the transport storage cask 30. It is aligned above the compartmentalized housing unit 32.

After that, as shown in FIG. 20, the hoist 12b winds down the hanger 12c, and the shielding plug 33 is returned to the upper end insertion port 32a of the compartmentalized housing portion 32 around the axial center portion of the transport storage cask 30.

Next, the empty carry-out cask 10 is removed, and the carry-out cask 10 newly containing the two vitrified bodies 22 is placed on the transport storage cask 30. Then, when the same operation as that shown in FIGS. 15 to 20 is repeated, two more vitrified bodies 22 are accommodated on the two vitrified bodies 22, and as shown in FIG. 21 The compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and one compartmentalized accommodating portion 32 around the axial core portion are filled with the vitrified body 22.

Hereinafter, the same operation as that shown in FIGS. 15 to 20 is repeated for the compartmentalized housing portion 32 around the remaining axial center portion of the transport storage cask 30. Finally, as shown in FIG. 22, when the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and the compartmentalized accommodating portion 32 around all the axial core portions are filled with the vitrified body 22, the vitrified body 22 is described. A lid 34 is attached to the opening 31a of the container body 31 so as to cover the entire shielding plug 33.

As a result, in the case of the first embodiment, as shown in FIG. 23, in the vitrification facility, the vitrified body 22 is refilled from the carry-out cask 10 to the transport storage cask 30, and a dedicated refill facility is newly constructed. It becomes possible to do without doing. Further, as shown in FIG. 24, in the radioactive waste storage facility, the vitrified body 22 may be refilled from the unloading cask 10 to the transport storage casque 30 without newly constructing a dedicated refilling facility. It will be possible.

That is, in the first embodiment, unlike the conventional case where a refilling facility is newly installed, it is not necessary to newly secure a dedicated land or space for the radioactive waste storage facility, and the existing building is remodeled. You don't have to.

Further, since the shielding plug 33 is detachably attached to the upper end insertion port 32a of the division accommodating portion 32, the lid is detachably attached to the opening 31a of the container body 31 of the transport storage cask 30. It is possible to make 34 thinner. Incidentally, if the shielding plug 33 is not provided, the lid 34 must have both a shielding and an airtight function, so that the lid 34 must be thickened.

In this way, it is possible to eliminate the need for securing land and space dedicated to the radioactive waste storage facility and remodeling the existing building due to the new construction of the refill facility.

25 to 39 are the second embodiment of the radioactive waste refilling apparatus of the present invention and the method of using the same. In FIGS. 25 to 39, the parts having the same reference numerals as those in FIGS. 1 to 24 represent the same objects, and the basic configuration is the same as that of the first embodiment shown in FIGS. 1 to 24. In addition, in FIGS. 25 to 39, similarly to FIGS. 7 to 22, the side cross-sectional view and the corresponding plan cross-sectional view are not separately shown, and the plan section is intentionally shown above the side cross-sectional view. ing.

The feature of the second embodiment is that the adapter 40 is interposed between the carry-out cask 10 and the transport storage cask 30 as shown in FIGS. 25 to 39.

The adapter 40 includes an adapter main body 41 and a passage port 42.

The adapter main body 41 is rotatably arranged with respect to the opening 31a of the transport / storage cask 30, and the carry-out cask 10 is placed on the adapter main body 41. Although the mechanism for swiveling the adapter body 41 is not particularly shown, for example, a rack is engraved on the outer peripheral surface of the swivel ring, and a pinion meshed with the rack is driven by a motor via a speed reducer. A swivel mechanism or other mechanism can be adopted.

In the passage port 42, the introduction outlet 11a of the carry-out cask 10 is arranged at the upper end insertion port 32a of the compartmentalized storage unit 32 at the axial center of the transport storage cask 30 and one compartmentalized storage unit 32 around the upper end insertion port 32a. It is bored in the adapter body 41 so as to communicate with the upper end insertion port 32a of the above.

As shown in FIGS. 26 and 27, the introduction outlet 11a formed at the bottom of the body portion 11 of the carry-out cask 10 is the transport storage cask via the two passage ports 42 of the adapter 40. The divisional accommodating portion 32 of the axial center portion 30 and the compartmentalized accommodating portion 32 around one axial core portion can be communicated with the two upper end insertion ports 32a in total. Incidentally, when the shutter 13 is opened as shown in FIG. 27, the introduction outlet 11a is divided into a compartmentalized accommodating portion 32 at the axial center portion of the transport storage cask 30 and a compartmentalized accommodating portion 32 around one axial core portion. In total, the two upper end insertion ports 32a are communicated with each other.

Next, the operation of the second embodiment will be described.

First, as in the case of the first embodiment, as shown in FIG. 7, the lid 34 of the transport storage cask 30 is removed, and the opening 31a at the upper end of the container body 31 is opened.

Next, as shown in FIG. 25, the adapter 40 is placed so that the passage port 42 matches the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and the compartmentalized accommodating portion 32 around the axial core portion. NS.

Subsequently, as shown in FIG. 26, the introduction outlet 11a is connected to the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and the compartmentalized accommodating portion 32 around the axial core portion via the passage port 42 of the adapter 40. The carry-out cask 10 is placed on the adapter 40 so as to match. At this point, two vitrified bodies 22 are housed in the carry-out cask 10, and the shutter 13 of the carry-out cask 10 is closed.

In the side sectional views of FIGS. 26 to 38, the hanging tool 12c swiveled to the back side, the vitrified body 22 suspended from the hanging tool 12c, and the shielding plug 33 are intentionally omitted. ..

After that, as shown in FIG. 27, the shutter 13 of the carry-out cask 10 is opened, the shield plug 33 of the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 is lifted, and the shield plug 33 is the adapter 40. It is housed inside the carry-out cask 10 through the passage port 42 of the above.

Next, as shown in FIG. 28, the ceiling portion 12a constituting the lifting mechanism 12 of the carry-out cask 10 is swiveled, and the first vitrified body 22 is a divisional accommodating portion of the axial center portion of the transport storage cask 30. It is aligned above the passage 42 of the 32 and the adapter 40.

Then, as shown in FIG. 29, the hanger 12c is wound down by the hoist 12b constituting the hoisting mechanism 12 of the carry-out cask 10, and the first vitrified body 22 is transported and stored from the passage port 42 of the adapter 40. It is suspended from the compartmentalized housing portion 32 at the axial center of the cask 30. When the first vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the next vitrified body 22 is a cask for transportation and storage. It is aligned above the compartmentalized housing portion 32 of the axial center portion 30 and the passage port 42 of the adapter 40.

Subsequently, as shown in FIG. 30, the hanger 12c is wound down by the hoist 12b, and the second vitrified body 22 is separated from the passage port 42 of the adapter 40 and the axial center portion 32 of the transport storage cask 30. Suspended on. When the second vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the shielding plug 33 is attached to the axial center portion of the transport storage cask 30. It is aligned above the compartment 32 and the passage port 42 of the adapter 40.

After that, as shown in FIG. 31, the hanger 12c is wound down by the hoist 12b, and the shielding plug 33 is inserted from the passage port 42 of the adapter 40 to the upper end of the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30. It is returned to the mouth 32a.

Next, the empty carry-out cask 10 is removed, and the carry-out cask 10 newly containing the two vitrified bodies 22 is placed on the transport storage cask 30 via the adapter 40. .. Then, when the same operation as that shown in FIGS. 26 to 31 is repeated, two more vitrified bodies 22 are accommodated on the two vitrified bodies 22, and as shown in FIG. 32, the two vitrified bodies 22 are further accommodated. The compartmentalized housing portion 32 at the axial center of the transport storage cask 30 is filled with the vitrified body 22.

Subsequently, as shown in FIG. 33, the introduction outlet 11a matches the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and the compartmentalized accommodating portion 32 around the axial center portion via the passage port 42 of the adapter 40. The carry-out cask 10 is placed on the adapter 40 so as to do so. At this point, as described above, in order to secure a space for temporarily accommodating the shielding plug 33, two vitrified bodies 22 are accommodated in the carry-out cask 10, and the shutter 13 of the carry-out cask 10 is accommodated. Is closed.

After that, as shown in FIG. 34, the shutter 13 of the carry-out cask 10 is opened, the shield plug 33 of the compartmentalized accommodating portion 32 around the axial center portion of the transport storage cask 30 is lifted, and the shield plug 33 is used as an adapter. It is housed inside the carry-out cask 10 through the passage port 42 of 40.

Next, as shown in FIG. 35, the ceiling portion 12a constituting the lifting mechanism 12 of the carry-out cask 10 is swiveled, and the first vitrified body 22 is separately accommodated around the axial center portion of the transport storage cask 30. It is aligned above the passage port 42 of the portion 32 and the adapter 40.

Then, as shown in FIG. 36, the hanger 12c is wound down by the hoist 12b constituting the hoisting mechanism 12 of the carry-out cask 10, and the first vitrified body 22 is transported and stored from the passage port 42 of the adapter 40. It is hung from the compartmentalized housing portion 32 around the axial center portion of the cask 30. When the first vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the next vitrified body 22 is a cask for transportation and storage. It is aligned above the compartmentalized housing portion 32 around the axial center portion 30 and the passage port 42 of the adapter 40.

Subsequently, as shown in FIG. 37, the hanger 12c is wound down by the hoist 12b, and the second vitrified body 22 is divided and accommodated around the axial center of the transport storage cask 30 from the passage port 42 of the adapter 40. Suspended on 32. When the second vitrified body 22 is separated from the hanging tool 12c and the hanging tool 12c is wound up by the hoist 12b, the ceiling portion 12a rotates and the shielding plug 33 is around the axial center of the transport storage cask 30. It is aligned above the compartmentalized housing portion 32 and the passage port 42 of the adapter 40.

After that, as shown in FIG. 38, the hanger 12c is wound down by the hoist 12b, and the shielding plug 33 is inserted from the passage port 42 of the adapter 40 to the upper end of the compartmentalized housing portion 32 around the axial center portion of the transport storage cask 30. It is returned to the insertion port 32a.

Next, the empty carry-out cask 10 is removed, and the carry-out cask 10 newly containing the two vitrified bodies 22 is placed on the transport storage cask 30 via the passage port 42 of the adapter 40. It will be placed. Then, when the same operation as that shown in FIGS. 33 to 38 is repeated, two more vitrified bodies 22 are accommodated on the two vitrified bodies 22, and as shown in FIG. 39, the two vitrified bodies 22 are further accommodated. The compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and one compartmentalized accommodating portion 32 around the axial core portion are filled with the vitrified body 22.

Hereinafter, an operation similar to the operation shown in FIGS. 33 to 38 is performed by turning the adapter 40 and sequentially moving the passage port 42 on the outer peripheral side of the adapter 40 in the circumferential direction. This is repeated for all the remaining compartmentalized housing portions 32 around the axial center portion. Finally, when the compartmentalized accommodating portion 32 of the axial center portion of the transport storage cask 30 and the compartmentalized accommodating portion 32 around all the axial core portions are filled with the vitrified body 22, the adapter 40 is removed. As in the case of the first embodiment, as shown in FIG. 22, the lid 34 is attached to the opening 31a of the container body 31 so as to cover the entire shielding plug 33.

As a result, in the case of the second embodiment, by using the adapter 40, the alignment of the carry-out cask 10 with respect to the transport storage cask 30 can be easily and efficiently performed. Then, as in the case of the first embodiment, as shown in FIG. 23, in the vitrification facility, the vitrified body 22 is refilled from the carry-out cask 10 to the transport storage cask 30, and a dedicated refill facility is newly added. It will be possible to do without construction. Further, as shown in FIG. 24, in the radioactive waste storage facility, the vitrified body 22 may be refilled from the unloading cask 10 to the transport storage casque 30 without newly constructing a dedicated refilling facility. It will be possible.

That is, in the second embodiment as well, unlike the conventional case where a refilling facility is newly installed, it is not necessary to newly secure a dedicated land or space for the radioactive waste storage facility, and the existing building is remodeled. You don't have to.

Further, as in the first embodiment, since the shielding plug 33 is detachably attached to the upper end insertion port 32a of the division accommodating portion 32, the opening 31a of the container body 31 of the transport storage cask 30 is provided. The lid 34 that can be detachably attached can be made thinner.

In this way, in the second embodiment as in the first embodiment, it is possible to eliminate the need for securing land and space dedicated to the radioactive waste storage facility and remodeling the existing building due to the new construction of the refill facility.

Then, in the second embodiment, the adapter 40 is provided between the carry-out cask 10 and the transport storage cask 30, and the adapter 40 swivels with respect to the opening 31a of the transport storage cask 30. The adapter body 41, which is freely arranged and on which the carry-out cask 10 is placed, and the introduction outlet 11a of the carry-out cask 10 are inserted into the upper end insertion port of the divisional accommodating portion 32 of the axial center portion of the transport storage cask 30. It is provided with a passage port 42 bored in the adapter main body 41 so as to communicate with the 32a and the upper end insertion port 32a of one division accommodating portion 32 arranged around the 32a. With such a configuration, the alignment of the carry-out cask 10 with respect to the transport storage cask 30 can be easily and efficiently performed.

Further, as a modification of the adapter 40 in the second embodiment, as shown in FIG. 40, the adapter 40 may have one passage port 42, and the adapter 40 may be slid not only in a swivel direction but also in a direction orthogonal to the axis line. good. That is, an adapter 40 interposed between the carry-out cask 10 and the transport storage cask 30 is provided, and the adapter 40 is rotatable with respect to the opening 31a of the transport storage cask 30 and the transport storage. The adapter main body 41, which is movably arranged in a direction orthogonal to the axis of the carry-out cask 30 and on which the carry-out cask 10 is placed, and the introduction outlet 11a of the carry-out cask 10 are one of the transport storage cask 30. A passage port 42 bored in the adapter main body 41 may be provided so as to communicate with the upper end insertion port 32a of the section accommodating portion 32. Even with such a configuration, the alignment of the carry-out cask 10 with respect to the transport storage cask 30 can be easily and efficiently performed.

Furthermore, in the first embodiment and the second embodiment, the radioactive waste 20 is, for example, a vitrified waste 22 obtained by mixing radioactive liquid waste with glass and filling the canister 21 with solidification.

On the other hand, as a method of using the radioactive waste refilling device of the first embodiment, as shown in FIG. 41, a lid opening step of opening the lid 34 of the transport storage cask 30 and the introduction outlet 11a are compartmentalized storage units. The carry-out cask mounting step of mounting the carry-out cask 10 on the transport storage cask 30 so as to match the position of the upper end insertion port 32a of the 32, and the division and accommodating portion by lifting the shielding plug 33 by the lifting mechanism 12. A step of opening the shielding plug that opens the upper end insertion port 32a of the 32, and a step of turning the radioactive waste 20 inside the carry-out cask 10 in accordance with the open upper end insertion port 32a of the compartmentalized storage unit 32. A storage step in which the radioactive waste 20 is suspended and stored in the compartmentalized storage unit 32, and a shield plug mounting step in which the shield plug 33 is mounted in the upper end insertion port 32a of the compartmentalized storage unit 32 in which the radioactive waste 20 is stored. After all the compartmentalized storage portions 32 are full, the lid mounting step of closing the opening 31a of the container body 31 of the transport storage cask 30 with the lid 34 can be performed. According to the method of using the radioactive waste refilling device of the first embodiment, the device that does not require the securing of land and space dedicated to the radioactive waste storage facility and the remodeling of the existing building due to the new construction of the refilling equipment can be efficiently performed. You can drive.

Further, as a method of using the radioactive waste refilling device of the second embodiment, as shown in FIG. 42, a lid opening step of opening the lid 34 of the transport storage cask 30 and the passage port 42 are compartmentalized storage portions. An adapter mounting step in which the adapter 40 is placed in the opening 31a of the transport storage cask 30 so as to match the position of the upper end insertion port 32a of the 32, and a carry-out cask in which the carry-out cask 10 is placed on the adapter 40. Radiation according to the mounting step, the shielding plug opening step of lifting the shielding plug 33 by the lifting mechanism 12 to open the upper end insertion port 32a of the partition accommodating portion 32, and the open upper end insertion port 32a of the partition accommodating portion 32. An internal swivel step of the carry-out cask in which the waste 20 is swiveled inside the carry-out cask 10, a storage step of suspending and storing the radioactive waste 20 in the compartmentalized storage unit 32, and a classification in which the radioactive waste 20 is stored. The shielding plug mounting step of mounting the shielding plug 33 to the upper end insertion port 32a of the accommodating portion 32, the adapter removing step of removing the adapter 40 after all the compartmentalized accommodating portions 32 are full, and the adapter 40 being removed. A lid mounting step of closing the opening 31a of the container body 31 of the transport storage cask 30 with the lid 34 can be performed. According to the method of using the radioactive waste refilling device of the second embodiment, the device that does not require the securing of land and space dedicated to the radioactive waste storage facility and the remodeling of the existing building due to the new construction of the refilling equipment is further efficient. You can drive well.

The radioactive waste refilling device of the present invention and the method of using the same are not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention. ..

10 Carry-out cask 11 Body 11a Introductory outlet 12 Lifting mechanism 12a Ceiling 12b Hoist 12c Hanger 13 Shutter 20 Radioactive waste 21 Canister 22 Vitrified body 30 Transport storage cask 31 Container body 31a Opening 31b Cylindrical body 32 Classification accommodating part 32a Upper end insertion port 32b Reduced diameter part 33 Shielding plug 34 Lid 40 Adapter 41 Adapter body 42 Passing port

Claims (5)

It is a radioactive waste refilling device that refills the radioactive waste stored in the carry-out cask into the transport storage cask.
The transport and storage cask has a container body having an opening at the upper end, and one at the axial center in a cross section capable of accommodating a plurality of the radioactive wastes in the axial direction of the container body and orthogonal to the axis. A compartmentalized housing portion formed inside the container body so as to be arranged around a plurality of containers, a shielding plug detachably attached to the upper end insertion port of the compartmentalized housing portion, and the container so as to cover all of the shielding plugs. Equipped with a lid that can be detachably attached to the opening of the main body
The carry-out cask is capable of accommodating the radioactive waste and the shielding plug, and has a body portion having an introduction outlet formed at the bottom for passing the radioactive waste and the shielding plug, and a swivel upper part of the body portion. A lifting mechanism that can suspend and suspend the radioactive waste and the shielding plug, and at least one of the transport and storage casks that can be opened and closed at the introduction outlet. A radioactive waste refilling device equipped with a shutter that communicates with the upper end insertion port of the compartmentalized storage unit. An adapter is provided between the carry-out cask and the transport storage cask.
The adapter is arranged so as to be rotatable with respect to the opening of the transport storage cask, and the adapter main body on which the carry-out cask is placed and the introduction outlet of the carry-out cask are the axes of the transport storage cask. The first aspect of claim 1, further comprising a passage port bored in the adapter body so as to communicate with the upper end insertion port of the section accommodating portion and the upper end insertion port of one section accommodating portion arranged around the section accommodating portion. Radioactive waste refilling device. An adapter is provided between the carry-out cask and the transport storage cask.
The adapter body is arranged so as to be rotatable with respect to the opening of the transport / storage cask and movable in a direction orthogonal to the axis of the transport / storage cask, and the adapter body on which the carry-out cask is placed. The radioactive waste filling according to claim 1, wherein the introduction outlet of the carry-out cask is provided with a passage port bored in the adapter body so as to communicate with the upper end insertion port of one division accommodating portion of the transport storage cask. Replacement device. The method of using the radioactive waste refilling device according to claim 1.
The lid opening step of opening the lid of the transport and storage cask, and
The carry-out cask mounting process in which the carry-out cask is placed on the transport storage cask so that the introduction outlet matches the position of the upper end insertion port of the compartmentalized housing portion.
A shielding plug opening process in which the shielding plug is lifted by a lifting mechanism to open the upper end insertion port of the compartmentalized housing portion, and
The internal swivel process of the carry-out cask, which swirls the radioactive waste inside the carry-out cask according to the upper end insertion port of the opened compartmentalized housing,
A storage process in which the radioactive waste is suspended and stored in a compartmentalized storage unit,
The process of attaching the shielding plug to the upper end insertion port of the compartmentalized storage unit in which the radioactive waste is contained, and the process of attaching the shielding plug.
How to use a radioactive waste refilling device that performs a lid mounting process that closes the opening of the container body of the transport storage cask with a lid after all the compartments are full. The method of using the radioactive waste refilling device according to claim 2 or 3.
The lid opening step of opening the lid of the transport and storage cask, and
An adapter mounting step of mounting the adapter in the opening of the transport storage cask so that the passage port matches the position of the upper end insertion port of the compartmentalized housing portion.
The carry-out cask mounting step of mounting the carry-out cask on the adapter, and
A shielding plug opening process in which the shielding plug is lifted by a lifting mechanism to open the upper end insertion port of the compartmentalized housing portion, and
The internal swivel process of the carry-out cask, which swirls the radioactive waste inside the carry-out cask according to the upper end insertion port of the opened compartmentalized housing,
A storage process in which the radioactive waste is suspended and stored in a compartmentalized storage unit,
The process of attaching the shielding plug to the upper end insertion port of the compartmentalized storage unit in which the radioactive waste is contained, and the process of attaching the shielding plug.
The adapter removal process, which removes the adapter after all the compartments are full,
How to use a radioactive waste refilling device that performs a lid mounting process that closes the opening of the container body of the transport storage cask from which the adapter has been removed with a lid.

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