JP2014035262A - Container for waste contaminated by radioactive substance and method for using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reusable container for waste contaminated by radioactive substances to be used for retention and transport of waste contaminated by radioactive substances which does not need to be treated as a radioactive substance, and a method for using the container.SOLUTION: The container 1 for waste contaminated by radioactive substances is a reusable container for waste contaminated by radioactive substances to be used for retention and transport of waste contaminated by radioactive substances, and includes a container main body 2 having an aperture which can be opened/closed and a lead blocking plate 3 which is attached to an inner surface of the container main body to be freely attachable/detachable. The container for waste contaminated by radioactive substances can block a gamma ray and other radioactive rays if the blocking plate is attached when the container is used for transport and retention of waste contaminated by radioactive substances. In addition the container can be reused if the blocking plate is detached from the container main body after use of the container.

Description

  TECHNICAL FIELD The present invention relates to a radioactive substance-contaminated waste container and a method for using the same, and more particularly, to a reusable radioactive substance-contaminated waste used for storage and transportation of radioactive substance-contaminated waste that does not need to be handled as a radioactive substance. It is related with a container and its usage.

It is necessary to prevent the radioactive material from spreading and the radiation of radioactive material and waste to which the radioactive material is attached when storing or transporting it. And must be stored in a container equipped with means for blocking radiation. As such a container, the container shown in patent document 1 can be mentioned, for example.
The container of patent document 1 can absorb a radiation with the square cylinder-shaped outer cylinder comprised from a steel plate. Further, the outer cylinder can be assembled with bolts.

JP 2000-131491 A

  On the other hand, there is an increasing demand for temporarily storing and transporting waste, soil, and the like contaminated with radioactive substances that do not need to be handled as radioactive substances. It is preferable to block such radioactive waste contaminated with radioactive material so that the radiation dose is low. However, in the container exemplified in Patent Document 1, it is suitable for its use in order to cope with a higher radiation dose. It has a specialized structure and is difficult to handle. In addition, when handling radioactive material-contaminated waste or the like, the number of parts that can be reused as they are increases, so that a structure suitable for this is desired.

  The present invention has been made in view of the above situation, and provides a reusable radioactive substance-contaminated waste container used for storage and transportation of waste or soil contaminated with radioactive substances, and a method for using the same. For the purpose.

The present invention is as follows.
1. A reusable radioactive material contaminated waste container used for storage or transportation of radioactive material contaminated waste, and a container body having an openable and closable opening, and a detachable arrangement on the inner surface of the container body A lead-containing barrier plate, and a radioactive substance-contaminated waste container.
2. The container body is an assembly type and can be disassembled after use and reassembled for reuse. Container for radioactive material contaminated waste as described.
3. A reusable radioactive material contaminated waste container used for storage or transportation of radioactive material contaminated waste, which has an openable and closable opening and assembles plate members constituting each surface; A radioactive substance-contaminated waste container, comprising: a lead shielding plate fixed to a surface corresponding to each inner surface of the container body of the plate material.
4). The container body includes suspension means for suspending and moving the container body with a crane. Thru 3. A radioactive material-contaminated waste container as described in any of the above.
5. The said container main body is provided with the connection means for connecting with the said other container main body at least one of right and left, front and rear, or up and down. Thru 4. A radioactive material-contaminated waste container as described in any of the above.
6). The opening is provided on the ceiling surface of the container body, a lid is disposed on one side of the opening via a hinge, the blocking plate is disposed on the back side of the lid, The above-mentioned 1. comprising suspension means for opening and closing the lid by locking with a crane on the surface side. To 5. A radioactive material-contaminated waste container as described in any of the above.
7). A method of using a radioactive substance-contaminated waste container, comprising: Thru 6. The radioactive substance-contaminated waste is stored in the radioactive substance-contaminated waste container according to any of the above, and the radioactive substance-contaminated waste container is then transported, and then the transported radioactive substance-contaminated waste For the radioactive material-contaminated waste, wherein the waste in the container is taken out, and then the radioactive material-contaminated waste container is transported to the place where the next radioactive material-contaminated waste is stored and reused. How to use the container.
8). A method for using a radioactive substance-contaminated waste container, wherein Thru 6. The radioactive substance-contaminated waste is stored in the radioactive substance-contaminated waste container according to any of the above, and the radioactive substance-contaminated waste container is then transported, and then the transported radioactive substance-contaminated waste The waste in the container is taken out, and then the container body is disassembled into each component member, and the shielding plate is detached from each component member, and then each disassembled component member and the detached shield plate are disassembled. A method for using a radioactive substance-contaminated waste container, wherein the radioactive substance-contaminated waste container is reused for assembling the radioactive substance-contaminated waste container.
9. 6. The radioactive substance-contaminated waste is stored in the radioactive substance-contaminated waste container in a packaged state. Thru 8. Use method of the container for radioactive substance contamination waste in any one of.
10. A method for using a radioactive substance-contaminated waste container that is used by connecting a plurality of container bodies to at least one of left and right, front and rear, or top and bottom, on the inner surfaces of all the unconnected surfaces of the container bodies The radioactive material-contaminated waste, which is provided with the shielding plate, stores radioactive material-contaminated waste in each container body, and then transports or stores each container body in the connected state. How to use the container.

According to this radioactive material contaminated waste container, it is equipped with a lead shielding plate that is detachably disposed on the inner surface of the container body, so that it is blocked when transporting or storing radioactive material contaminated waste. A plate can be attached to block radiation such as gamma rays. Further, the barrier plate can be removed from the container main body after use, and can be reused for the next use.
If the container body is an assembly type, it can be stored in a bulky form if it is not necessary to transport or store radioactive material contaminated waste with this radioactive material contaminated waste container. Waste containers can be transported.

According to this radioactive material-contaminated waste container constructed by assembling an assembly of a plate material and a lead shielding plate, the process of attaching the shielding plate to the plate material during assembly can be reduced. Easy to assemble radioactive waste contaminated waste containers.
If the container body is equipped with suspension means for suspending and moving the container body with a crane, a container for radioactive material contaminated waste that is difficult to move manually due to the weight of the shielding plate, radioactive material contaminated waste, etc. A connection site can be provided for movement with a crane.
When the container body is provided with connecting means for connecting to other container bodies and at least one of left, right, front, back, top and bottom, connect multiple radioactive substance contaminated waste containers to each other during transportation and storage This can prevent the collapse of the cargo.
An opening is provided on the ceiling surface of the container body, a lid is disposed on one side of the opening via a hinge, a blocking plate is disposed on the back side of the lid, and a crane is disposed on the surface of the lid. When it has suspension means for stopping and opening and closing the lid part, it is easy to open and close the lid part that is difficult to open and close by hand due to the weight of the shielding plate, and one side of the lid part is one end of the opening part Since the lid portion is fixed to the lid, the lid portion does not fall accidentally when it is lifted, and a process such as alignment of the center of gravity is not necessary, and the operation is facilitated.

According to the method of using the radioactive material contaminated waste container using such a radioactive material contaminated waste container, the radioactive material contaminated waste container is transported to the next use place as it is after the radioactive material contaminated waste is transported. By doing so, the radioactive substance-contaminated waste container can be reused for the transportation of the next radioactive substance-contaminated waste.
In addition, after the radioactive material contaminated waste is transported, the container body is disassembled, and after the shielding plate is removed from the structural member, the structural member of the container main body is moved to the next place of use, that is, the location where the radioactive material contaminated waste is stored. In addition, according to the method of using the radioactive material contaminated waste container which is transported and reused for assembling the radioactive material contaminated waste container, the container body and the shield plate can be reused and reused. It can be prevented from being bulky during transportation during use.
Furthermore, when radioactive material-contaminated waste is packaged and stored in a radioactive material-contaminated waste container, handling of the radioactive material-contaminated waste is facilitated and transported to and from the radioactive material-contaminated waste container In this case, it is possible to prevent the radioactive material contaminated waste from being scattered and contaminating the surroundings.

  Shield plates are provided on the inner surfaces of all surfaces that are not connected to each container body, and radioactive material contaminated waste is stored in each container body, and then transported or stored with each container body connected. According to the method of using the radioactive material contaminated waste container, it is possible to cut off the number of blocking plates so that radiation is not emitted to the outside, and more efficiently use the volume of the container body, Weight can be reduced.

The present invention is further illustrated by the following detailed description with reference to a number of referenced drawings, given non-limiting examples of exemplary embodiments according to the present invention, wherein like reference numerals denote Similar parts are shown throughout the figure.
It is a schematic diagram which shows this container for radioactive substance contamination waste. It is a schematic diagram which shows this container for radioactive substance contamination waste. It is a schematic diagram which shows this container for radioactive substance contamination waste. It is a schematic diagram which shows this container for radioactive substance contamination waste. It is a schematic diagram which shows the usage example of this radioactive substance contaminated waste container. It is a schematic diagram which shows the usage example of this radioactive substance contaminated waste container. It is a schematic diagram which shows the usage example of this radioactive substance contaminated waste container. It is a schematic diagram which shows the usage example of this radioactive substance contaminated waste container. It is a schematic diagram which shows the usage example of this radioactive substance contaminated waste container.

Hereinafter, the radioactive substance contaminated waste container of the present invention and the method of using the same will be described in detail with reference to FIGS.
1. Radioactive substance contaminated waste container The present radioactive substance contaminated waste container includes a container body and a blocking plate disposed on an inner surface of the container body. This container for radioactive material-contaminated waste may be used for storage of radioactive material-contaminated waste, particularly for temporary storage, or for transportation of radioactive material-contaminated waste.
Here, "radioactive material contaminated waste" refers to waste that does not need to be handled as radioactive material regulated by law. In this specification, radioactive material-contaminated waste is used to include soil contaminated with radioactive material in addition to waste.
Examples of such waste include wastes such as rubble, waste wood, pruned branches, deciduous branches, waste, compost, iron scrap, and dust contaminated with radioactive substances. In addition, dewatered sludge, dried sludge and the like contaminated by radioactive substances generated in water treatment facilities such as water purification plants, sewage treatment plants, and wastewater treatment facilities can be exemplified. In addition, examples include waste compost, dehydrated livestock excreta, and dried products.
In addition, wastes such as dust and incineration ash generated by incineration of waste materials such as waste wood, pruned branches, rice straw, waste compost, dewatered sludge, dry sludge, dehydrated matter, and dry matter can be exemplified. .
Furthermore, there can be mentioned wastes such as earth and sand, dust, washing waste liquid, etc., which are generated by decontamination of soil and facilities contaminated with radioactive substances.

  Such radioactive substance-contaminated waste may be stored in the container body as it is, or may be packaged and stored in the container body. The type of packaging can be arbitrarily selected. For example, in addition to bagging, wrapping with a sheet-shaped packaging material such as paper or resin can be mentioned. Moreover, you may use the flexible container bag which provided the suspension belt in the bag made from resin fiber, such as polyethylene and a polypropylene.

The “container main body” is a container that has an opening that can be opened and closed and that can store radioactive material-contaminated waste from the opening and store or transport it as it is. Such a container can be reused for storing and transporting another waste after storing and transporting the waste. The material of the container is not particularly limited, and metal, wood, resin and the like can be exemplified.
The structure of the container main body is not particularly limited. For example, as shown in FIG. 1, the container 2 can be made open at the top and closed by the lid portion 22. Moreover, the existing container main body can be utilized, for example, the dry container shown in FIG. 2 can be mentioned. Dry containers are highly sealed and suitable for storage and transportation of radioactive material contaminated waste.
In addition, as illustrated in FIG. 1, the lid portion 22 can be provided with a suspension means 212 that is suspended and moved by a conveyance means such as a crane. The suspension means 212 is a hole, a ring, or the like for connecting a hook such as a crane or a rope connected to the hook to the lid. Furthermore, a jig may be fixed to the holes 233 and 234 provided in the dry container shown in FIG. 2 and may be suspended and moved by a crane or the like.

  The number of openings and the positions to be provided are not particularly limited. For example, one opening is provided on the top surface of the container body, two or more side surfaces of the container body are provided with openings, a plurality of openings are provided on the top surface, and a plurality of openings are provided on the top and side surfaces. Etc. Moreover, the opening / closing method of the opening / closing part can be arbitrarily selected. For example, as shown in FIG. 1, it is possible to provide a cover part 22 that covers the container body 2 and covers it. Furthermore, a lid 22 of a hinged door attached via a hinge is provided at one end of the side opening of the container body 2a illustrated in FIG. 2 or one end of the top surface opening of the container body 2b illustrated in FIG. Can be mentioned. Moreover, as illustrated in FIG. 4, the lid 22 may be fixed to the upper opening of the container main body 2c by screwing, or as a lid that slides and opens like a sliding door or a shutter. Good.

  Moreover, as illustrated in FIGS. 3 and 4, the lid 22 can be provided with suspending means 222 for suspending and opening the opening by a crane or the like. The suspension means 222 is a hole, a ring, or the like for connecting a hook such as a crane or a rope connected to the hook to the lid. When the shielding plate 3 is provided on the lid portion 22, it is difficult to manually open and close the lid portion 22 due to the weight of the shielding plate 3, but when the suspension means 222 is provided, the lifting work by a crane or the like is facilitated. At this time, a hinge 221 is provided on one side of the lid portion 22 and is fixed to one end of the opening portion, so that the lid portion is opened by lifting the lid portion by a crane or the like, and the lid portion regardless of the position of the center of gravity when lifting. Since one side is fixed to one end of the opening, the lid does not fall accidentally when it is lifted, and a process such as center of gravity adjustment is not required, and the work is facilitated.

In addition, it can be disassembled after temporary storage or transportation of waste, and can be a prefabricated container such as a prefabricated container that can be used for the next storage or transportation. The assembly means of the assembly-type container body can be arbitrarily selected, such as screwing or fixing by fitting.
Furthermore, in the assembly-type container body, as illustrated in FIG. 4, the shielding plate 3 can be fixed in advance to the plate member 24 constituting the container body 2 c so that it can be assembled as it is. In this radioactive substance-contaminated waste container, the shielding plate 3 can be fixed to the plate member 24 in advance by any fixing means such as screwing, riveting, or bonding, and each plate member 24 can be fixed in a box shape by screwing. .

Moreover, it is preferable that the container main body is equipped with the structure for connecting with another container main body for transport or storage. Such connection may be in any one of the left-right direction, the front-rear direction, and the up-down direction of the container main body, and when the container main body is connected three or more, it may be connected to two or more in each direction. Good.
The connection means for connecting in each direction is not particularly limited and can be arbitrarily selected.
As an example of this, as shown in FIG. 1, there can be mentioned connecting means 231 and 232 in which the bottom surface of the container body 22 and the ceiling surface of the lid portion 22 are fitted and the stacked container body 22 collapses. The connecting means 231 and 232 shown in FIG. 2 are configured by the connecting means 232 on the ceiling surface side of the lid portion 22 and the connecting means 231 on the bottom surface side that fits so as to surround and cover each connecting means 232. Moreover, it is not restricted to such connection means 231 and 232, but a hole, a metal fitting, etc. for screwing can be provided.
Further, as in the dry container shown in FIG. 2, the oblong holes 233 and 234, which are connecting means for fixing each other by screwing when mounted on the trailer, stacked, or connected in the lateral direction, are provided on each side. Can be prepared. The dry container can be fixed vertically by inserting a substantially rectangular plate attached to a screw into an oblong hole 233 provided on the top and bottom surfaces. This plate has a short side length shorter than the short side length of the oblong hole 233, and the plate has a long side length longer than the short side length of the oblong hole 233 and the long side length. Therefore, if the plate is rotated 90 ° after insertion, the long side of the plate is aligned with the edge of the short side of the long hole 233. It can be caught and the dry container can be fixed.
In order to prevent moisture from entering the container body or leaking out of the container body, a watertight container is provided in the container body, or the container body is filled with resin in the gaps of the container body. It can have a watertight structure.
Furthermore, the plate material constituting the container body can be pivotally connected so as to have a link structure, and can be folded when not in use.

The “blocking plate” is a lead plate-like material that is disposed on the inner surface of the container main body and blocks leakage of radiation emitted from the waste contained in the container main body to the outside. The shielding plate can adjust its shielding property against radiation by changing its thickness. In addition, the shielding property required by the shielding plate varies depending on the radioactivity of the waste contained in the container body and the distance from the surface of the waste to the shielding plate. It is selected so as to be within the reference value determined by the above. For example, if the thickness of lead (specific gravity 11.3 g / cm ³ ) is 40 mm, the transmittance of γ rays and X rays can be reduced to about 1/10.

The shape of the blocking plate is not limited to this, although the planar shape is usually a rectangular plate shape. For example, one or more lead sheets can be put in a bag to form a shielding plate configured in a plate shape. Furthermore, it is good also as a blocking board which packed the lead hair which gathered hair-like lead into the bag, and made it plate shape. In addition, when a plurality of blocking plates are arranged side by side, a shape such as a step, a groove, a protrusion, or the like can be provided at the end so as to fit each other so that no gap is generated. Furthermore, means for disposing in the container body can be provided. For example, a screw hole for screwing on the inner surface of the container main body, a groove or hole for fitting with a protrusion such as a hook provided on the inner surface of the container main body, a hole provided on the inner surface of the container main body, etc. A protrusion or the like for fitting by fitting can be mentioned.
The size of the blocking plate is not particularly limited. For example, the blocking plate can have a size that covers the entire inner surface of the container body to which the blocking plate is attached. Further, the inner surface can be equally divided. In the case where the inner surface has an equally divided size, the inner surface can be made lighter than the entire inner surface, and the work of attaching the blocking plate is facilitated.

The shielding plate is usually provided on each side surface, ceiling surface, and bottom surface, which is each inner surface of the container body.
The means for attaching the shielding plate to the inner surface of the container body can be arbitrarily selected. For example, it can be fixed by screwing, nailing, hook-and-loop fasteners, strapping, or the like. Also, it is hooked and fixed on a hook or the like provided on the inner surface, put into a blocking plate in a pocket provided on the inner surface, the blocking plate and the inner surface are fitted by a fitting structure, and a plate material to which the blocking plate is fixed is fixed to the inner surface. And so on.

The blocking plate is not limited to a plate shape, and may be a sheet shape having flexibility. Since the shielding plate can be bent along the corner of the container body, radiation at the corner can be easily shielded. Moreover, by covering the lead plate with a cloth or a resin, it can be covered and attached easily. Furthermore, a dosimeter such as a fluorescent glass dosimeter can be attached to the blocking plate. By attaching a dosimeter, the total amount of radiation received by the shielding plate can be obtained and used for radiation dose management and the like.
By using such a shielding plate, even when the shielding plate is broken and cannot be used due to the use of this container, only the corresponding shielding plate can be replaced and reused.
The used blocking plate can be detached from the container body by any means and can be reused. This reuse method can be used by re-attaching to the container body for transporting new radioactive material contaminated waste or the like. Moreover, after making it melt | dissolve, a shielding board can be newly manufactured or it can manufacture to another product.

In addition, the blocking plate is usually provided on all surfaces of the container body, but may be provided only on a part of the surface of the container body when a plurality of container bodies are placed side by side. For example, as illustrated in FIG. 5, on the surface 25 adjacent to the other radioactive material-contaminated waste container 1, the radiation passing through the surface 25 is irradiated into the corresponding radioactive material-contaminated waste container and exposed to the outside. Since it is possible to avoid leakage, the attachment can be omitted as illustrated in FIGS. The radioactive substance-contaminated waste containers illustrated in FIGS. 8 and 9 are used by connecting a plurality of container bodies to at least one of the left, right, front, back, and top and bottom, and all surfaces where the container bodies are not connected. A shielding plate is provided on the inner surface. That is, the radioactive substance-contaminated waste container illustrated in FIG. 8 is connected to the container body in the left-right direction shown in the figure, and a shielding plate is provided on the adjacent surface 25 of the side surfaces in the left-right direction. The shielding board is provided in the other side surface, the ceiling surface, and the bottom face. Further, the radioactive substance contaminated waste container illustrated in FIG. 8 is connected to the container main body in the left-right direction shown in the figure, and is stacked in the vertical direction shown in the figure. Further, the shielding plate is not arranged on the bottom surface, the ceiling surface, and the side surface adjacent to each other in the vertical and horizontal directions.
Furthermore, since the radiation passing through the bottom surface is normally absorbed by the ground at the bottom surface, the attachment of the shielding plate can be omitted.

  As illustrated in the shielding plate 3 in FIG. 9, for example, the shielding plates can be used in a stacked form in the thickness direction. Since the radiation blocking rate is increased by stacking, the radiation amount reaching the container body can be adjusted by changing the number of layers depending on the radiation amount of radioactive substance-contaminated waste or the like. As a result, the shielding performance can be improved by the amount of laminated shielding plates with a single thickness, and when the radioactivity of the waste is weak, it can be reduced in weight by reducing the number of layers, and the radioactivity is strong. In some cases, the number of layers can be increased to improve the shielding performance so that radiation does not leak out, and it is not necessary to prepare a plurality of types of shielding plates. When stacking the blocking plates, the means for stacking them can be arbitrarily selected. For example, the shielding plates can be joined and laminated by screwing, a fitting structure, an adhesive, a hook-and-loop fastener, or the like.

2. How to use the radioactive material-contaminated waste container This radioactive material-contaminated waste container has a shielding plate attached to the inner surface of the container body immediately before use for storage or transportation, and the shielding plate attached after use. Can be removed.
In other words, a shield plate is attached to the inner surface of the assembled container body to form a radioactive material contaminated waste container, and then the radioactive material contaminated waste container is stored in the radioactive material contaminated waste container. Take out radioactive material contaminated waste etc. in the container for material contaminated waste, then disassemble the container body of the radioactive material contaminated waste container and remove the shielding plate, then remove the components and shielding plate of the container body Can be transported and reused to assemble radioactive waste contaminated containers.
There is no particular limitation on the means for storing radioactive substance-contaminated waste and the like in the radioactive substance-contaminated waste container. For example, radioactive material-contaminated waste or the like can be suspended by a crane, or radioactive material-contaminated waste or the like can be lifted or removed by using a forklift. Moreover, the hanging work can be facilitated by putting radioactive substance-contaminated waste in a flexible container bag and storing or taking out the radioactive substance-contaminated waste in a container for radioactive substance-contaminated waste.

The method of using the radioactive material-contaminated waste container will be specifically described below.
As shown in FIG. 1, a radioactive substance-contaminated waste container 1 used in this method of use is a container with a lid portion 22 in which a metal plate for constituting a bottom surface and four side surfaces is fixed in a box shape by screwing. It consists of a main body 2 and a blocking plate 3 that is a lead plate provided on the four side surfaces, bottom surface, and ceiling surface of the lid portion 22 of the container main body 2. Further, the container body has strength that can be stacked and transported or stored as illustrated in FIG. 9, and includes metal fittings 231 and 232 that are connecting means that mesh with the four corners of the bottom surface and the four corners of the lid. An annular suspension means 222 for lifting the lid portion 22 with a crane or the like to open the opening portion is provided on the side surface of the lid portion 22. Further, an annular suspension means 222 for lifting the radioactive substance-contaminated waste container 1 with a crane or the like and moving it to a necessary place is provided on the side surface of the container body 2.
The blocking plate 3 has a size capable of covering the entire surface, and is fixed to the container body 2 and its lid portion 22 with screws. The thickness of the blocking plate 3 is about 40 mm, and can block γ rays and the like to about 1/10. The blocking plate 3 may be large enough to cover the entire surface of the container body 2 by spreading a plurality.

Such a radioactive substance-contaminated waste container can be transported by the following procedure.
(1) As shown in FIG. 6 (1), the radioactive material contamination disposal shown in FIG. 1 is performed by screwing the shielding plate 3 on the inner surface of the container body 2 assembled by screwing each plate material constituting the container body. It is set as the container 1 for goods. This procedure is usually performed at the site where radioactive material contaminated waste is stored.

  (2) Then, as shown in FIG. 6 (2), radioactive material contaminated waste or the like is stored in the radioactive material contaminated waste container 1. Means for storing radioactive material-contaminated waste can be arbitrarily selected. For example, in the radioactive substance-contaminated waste container 1 having an open top shown in FIG. 1, the radioactive substance-contaminated waste 7 can be suspended and stored by a crane or the like. In addition, the radioactive material contaminated waste is made into the radioactive material contaminated waste 7 in the flexible container bag, so that the hanging work can be facilitated by storing in and taking out from the radioactive material contaminated waste container. it can. It should be noted that the radioactive substance-contaminated waste container 1 is attached by previously connecting the suspension means 222 of the lid portion 22 of the radioactive substance-contaminated waste container 1 and a hook such as a crane with a rope or the like, and lifting and moving the crane. Keep open.

  (3) Next, as shown in FIG. 6 (3), the radioactive substance-contaminated waste container 1 storing the radioactive substance-contaminated waste is transported to the destination. The transportation means at this time is not particularly limited, and transportation may be performed using a general-purpose truck or trailer, or transportation using a truck or trailer dedicated to a container such as a dry container. In order to place the radioactive substance-contaminated waste container 1 on the transportation means, the hanging means 212 of the radioactive substance-contaminated waste container 1 and a hook such as a crane are connected by a rope or the like, and the crane is lifted and moved. It is performed by moving it.

  (4) Thereafter, as shown in FIG. 7 (4), when the transportation is completed and the storage is completed, the radioactive material contaminated waste in the radioactive material contaminated waste container is taken out by any means. For example, in the radioactive substance-contaminated waste container 1 having an open top shown in FIG. 1, the lid 22 is moved by a crane or the like and opened, and then the radioactive substance-contaminated waste 7 is taken out by hanging with the crane or the like. Can do.

(5) Then, as shown in FIG. 7 (5), the radioactive substance-contaminated waste container 1 that has been used is disassembled by unscrewing the container body 2 and separating the plate material on the spot. Further, the blocking plate 3 is detached from each plate material.
(6) As shown in Fig. 7 (6), the plate material of the container body 2 and the detached blocking plate 3 are transported to a place where new radioactive material contaminated waste is stored, and the radioactive material contaminated waste on site. It can be reused for the assembly of physical containers. Further, the blocking plate 3 may be reused after being melted.
The container body 2 and the blocking plate 3 may be damaged by use. For this reason, when reusing the container body 2 and the blocking plate 3, it may be determined whether or not to reuse by examining these deteriorations.

Moreover, it is not restricted to the procedure shown to said each process, For example, it can carry out as shown below.
(1a) In the process of assembling the radioactive substance-contaminated waste container 1 of (1) above, if the container body 2 is a ready-made container such as a dry container, the shielding plate 3 is attached to the inner surface of the container body 2 Thus, the radioactive substance-contaminated waste container 1 can be obtained. In this case, in the step (5) disassembling the radioactive substance-contaminated waste container 1, the barrier plate 3 is simply detached from the container body 2, and the container body 2 is reused as it is.
(1b) Before assembling the plate material into the container main body 2, after the shielding plate 3 is attached to the plate material, the container main body 2 may be assembled into the radioactive substance contaminated waste container 1.
(1c) Further, a plate member 24 to which the shielding plate 3 as illustrated in FIG. 4 is fixed may be used to assemble the plate member 24 into the container body 2c by screwing to form the radioactive substance contaminated waste container 1. In this case, in the step (5) disassembling the radioactive substance-contaminated waste container 1, a new radioactive substance is maintained with the shielding plate 3 fixed to the plate member 24 without detaching the shielding plate 3 from the container body 2. It is transported to a place where contaminated waste is stored, assembled and reused.

(5a) In the step (5) of disassembling the radioactive substance-contaminated waste container 1, the container body 2 may be disassembled after the shielding plate 3 is detached from the radioactive substance-contaminated waste container 1.
(5b) Furthermore, it is not necessary to remove the blocking plate 3 attached to each plate material. In this case, while the shielding plate 3 is attached to the plate member 24, it can be transported to a place where new radioactive material contaminated waste or the like is stored and reused for assembling the radioactive material contaminated waste container.

According to the above method of use, the barrier plate can be removed after use to prepare for the next use and transportation, so that the container body and the barrier plate can be reused individually. Moreover, even if it may be stored as it is after transportation, or in the case where it is stored on the spot without being transported, the radioactive material contaminated waste container 1 is assembled after assembling the radioactive material contaminated waste container 1 in the same manner as the transportation method described above. The waste 7 can be stored and stored, and then the shielding plate 3 can be detached from the radioactive substance-contaminated waste container 1 that has been used and reused. In addition, if the container body 2c can be assembled by screwing with the shielding plate 3 fixed to the plate member 24 illustrated in FIG. 4, the container body 2c is unscrewed after transportation to the plate member 24 (and the shielding plate 3). By decomposing, it can be transported and reused without being bulky.
Furthermore, instead of the container main body 2 having an open top and a lid 22 shown in FIG. 1, a radioactive substance-contaminated waste container using a container main body 2b having a plurality of hinged doors 22 shown in FIG. Can be used. The lid portion 22 of the container main body 2b is rotatably fixed to the opening of the container main body 2b by a hinge 221 and the blocking plate 3 is fixed thereto. Further, a suspension means 222 for lifting by a crane or the like is provided on the surface, and after storing the radioactive material contaminated waste 7 in (2) and when taking out the radioactive material contaminated waste 7 in (4). It can be opened and closed by a crane or the like. Furthermore, since the opening is opened and closed by the plurality of lids 22, the mass of the lids 22 per unit can be suppressed, and the work by the crane or the like can be easily handled.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the present invention depending on the purpose and application. The radioactive substance-contaminated waste container 1 described in the method of using the radioactive substance-contaminated waste container is the radioactive substance-contaminated waste container 1 provided with a lid on the upper side as shown in FIG. However, the same effect can be obtained by using the radioactive substance-contaminated waste container 1 having the container body 2 as a dry container provided with a lid on the side shown in FIG. When the dry container is the container body 2, it is easy to use existing equipment such as loading equipment such as forklifts for dry containers and transport equipment, and more easily transport containers for radioactive material contaminated waste. Can be stored.

Further, when the radioactive substance contaminated waste containers 1 are arranged side by side as shown in FIG. 5, the blocking plates 3 on the adjacent side wall surfaces are sandwiched by the radioactive substance contaminated waste 7. Therefore, as illustrated in FIGS. 8 and 9, the inner surface of the adjacent side surface 25 of the adjacent container body 2 is not provided with the shielding plate 3, and the arranged radioactive substance-contaminated waste containers 1 are grouped together. The blocking plate 3 may be disposed only on the inner surfaces of the side surface 26, the top surface, and the bottom surface located on the outer periphery. By adopting such an arrangement method, it is possible to block the radiation to the outside while reducing the number of the blocking plates 3 used, the volume of the container body 2 can be used more efficiently, and the weight can be reduced. . In particular, when stacking as shown in FIG. 9, the radioactive substance-contaminated waste container 1 can be lightened by the amount of the shielding plate 3, so that the lower radioactive substance-contaminated waste container 1 can be stacked more without being damaged. .
Furthermore, as shown in FIG. 9, the radioactive substance contaminated waste containers 1 can be stacked vertically and horizontally, and the blocking plate 3 can be disposed on the side surface 26 and the ceiling surface located on the outer periphery thereof. At this time, the radiation radiated from the side surface 26 increases by the side by side, but the shielding plate 3 positioned on the side surface is laminated to increase the shielding rate and block the radiated radiation. Can do.
As a reference example, the radioactive substance-contaminated waste container can be used for storing or transporting radioactive waste discharged from nuclear power plants, research facilities, medical facilities, etc. that handle radioactive materials.

  DESCRIPTION OF SYMBOLS 1; Radioactive substance contaminated waste container, 2, 2a, 2b, 2c; Container main body, 212; Suspension means, 22; Lid part, 221; Opening / closing metal fitting, 222; Suspension means, 3; Radioactive material contaminated waste.

Claims (10)

Reusable radioactive material contaminated waste container used for storage or transportation of radioactive material contaminated waste,
A container body having an openable and closable opening;
A lead shielding plate detachably disposed on the inner surface of the container body;
A container for radioactive material contaminated waste.   The radioactive substance-contaminated waste container according to claim 1, wherein the container body is an assembly type and can be disassembled after use and reassembled for reuse. Reusable radioactive material contaminated waste container used for storage or transportation of radioactive material contaminated waste,
A container body comprising an opening that can be opened and closed, and assembling plate members constituting each surface;
A lead shielding plate fixed to a surface corresponding to each inner surface of the container body of the plate material;
A container for radioactive material contaminated waste.   The radioactive container-contaminated waste container according to any one of claims 1 to 3, wherein the container body includes a suspension means for suspending and moving the container body with a crane.   The radioactive substance-contaminated waste according to any one of claims 1 to 4, wherein the container body is provided with connecting means for connecting to the other container body and at least one of left, right, front, back, and top and bottom. Container.   The opening is provided on the ceiling surface of the container body, a lid is disposed on one side of the opening via a hinge, the blocking plate is disposed on the back side of the lid, The radioactive substance-contaminated waste container according to any one of claims 1 to 5, further comprising a suspension means that is locked on a surface side with a crane to open and close the lid. A method of using a container for radioactive material-contaminated waste,
The radioactive substance contaminated waste is stored in the radioactive substance contaminated waste container according to any one of claims 1 to 6,
After that, transport the radioactive material contaminated waste container,
Next, take out the waste in the transported radioactive material contaminated waste container,
Thereafter, the radioactive substance-contaminated waste container is transported to a place where the next radioactive substance-contaminated waste is stored and reused. A method of using a container for radioactive material-contaminated waste,
A radioactive substance-contaminated waste is stored in the radioactive substance-contaminated waste container according to any one of claims 2 to 6,
After that, transport the radioactive material contaminated waste container,
Next, take out the waste in the transported radioactive material contaminated waste container,
Thereafter, the container body is disassembled into each component member, and the blocking plate is detached from each component member,
Next, each of the disassembled components and the detached blocking plate are transported and reused for assembling the radioactive substance contaminated waste container.   The method for using a radioactive substance-contaminated waste container according to any one of claims 7 to 8, wherein the waste is packaged and stored in the radioactive substance-contaminated waste container. A method of using a radioactive substance-contaminated waste container in which a plurality of container bodies are connected to at least one of left and right, front and rear, or top and bottom,
The shielding plate is provided on the inner surface of all the surfaces of the container body that are not connected,
Store radioactive material contaminated waste in each said container body,
Thereafter, the container main body is transported or stored in the connected state, and the method for using a radioactive substance contaminated waste container.

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