JP2013164360A - Radiation shield attachment body and radiation shield vessel using radiation shield attachment body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiation shield attachment body and a radiation shielding vessel capable of shielding radiation by using a drum can or the like and also being repeatedly used during carrying work.SOLUTION: A trunk part of a cylindrical vessel, such as a drum can is wound around with a trunk part attachment body 10, and is fastened and fixed by fastening belts 14, 15. Then, a lower attachment body 30 is attached to a lower part of the cylindrical vessel 1, an upper part attachment body 20 is installed on a lid body 3 of the cylindrical vessel 1, and the lower part attachment body 30 and the upper part attachment body 20 are respectively fixed by a fastening belt. The trunk part attachment body 10, the upper part attachment body 20 and the lower part attachment body 30 each have a shielding layer, such as lead wool and a lead plate. The entire radiation shield vessel is suspended by using slings 43.

Description

  The present invention relates to a radiation shielding mounting body that is detachably mounted on a cylindrical container that contains a contaminant contaminated with a radioactive substance, and a radiation shielding container in which the cylindrical container is covered with a radiation shielding mounting body.

  As radiation shielding containers for transporting and storing pollutants contaminated with radioactive substances, those described in Patent Document 1 and Patent Document 2 below are known.

  In the radiation shielding container described in Patent Document 1, a plurality of storage containers having different sizes, each made of a steel pipe member, are stored inside a body that is a steel open drum can.

  The radiation shielding container described in Patent Document 2 has a cylinder formed of stainless steel stacked in a standard drum container and stored in multiple layers, and lead, tungsten, or concrete is placed in the gap between the cylinders. A radiation shield such as is arranged.

JP 2007-51908 A JP 2010-8224 A

  The radiation shielding containers described in Patent Document 1 and Patent Document 2 are used mainly for storing radioactive waste that emits radiation having a relatively high concentration generated in a nuclear power plant.

  On the other hand, at present, so-called decontamination work is going to be performed in a place contaminated with radiation. In a series of decontamination operations, radioactive pollutants that emit low-concentration radiation such as soil, weeds and dead leaves cut from the surface of the land are collected at the decontamination site and stored in containers. In addition, the pollutant is transported from the collection site to a temporary storage location, and further transported from the temporary storage location to an intermediate storage facility. Shielding is required to suppress radiation from the container from the time when the contaminant is put into the container to the transportation operation.

  Since the radiation shielding containers described in Patent Document 1 and Patent Document 2 are all made by putting a plurality of steel pipes, lead, or concrete inside a drum can, the weight of the radiation shielding container itself becomes large and difficult to handle. It is not suitable for transporting contaminants from the decontamination site to a temporary storage location, or for transporting from a temporary storage location to an intermediate treatment storage facility, and to be used repeatedly for the above transport operations. Is virtually impossible. In addition, since the radiation shielding structure is built in the drum can, the volume capacity of the region in which the contaminant can be stored is small, and the storage efficiency and the transport efficiency of the contaminant are extremely deteriorated.

  The present invention solves the above-mentioned conventional problems, and can be used for transporting radioactive pollutants that generate a relatively low concentration of radiation such as soil, and can be used repeatedly during transportation and storage. An object of the present invention is to provide a radiation shielding mounting body and a radiation shielding container that can be used.

  In addition, the present invention provides a radiation shielding mounting body and a radiation shielding container that can efficiently use the internal capacity for storing and transporting contaminants when a drum can is used to store contaminants. It is aimed.

The present invention comprises a body mounting body that is attached to the attachment / detachment itself around a metal cylindrical container,
The trunk part mounting body includes a trunk part shielding layer that is deformably formed including a metal material having a radiation shielding function, and a sheet that covers the trunk part shielding layer. is there.

  For example, the body mounting body is configured to be wound around the body of a cylindrical container, and is configured to be provided with a fastening member that fixes the body mounting body in a state of being wound around the body of the cylindrical container. .

  As described above, the body mounting body is formed in a flat plate shape or a belt shape, wound around the body of the cylindrical container, and fixed with a fastening member, so that it can be easily attached to and detached from the cylindrical container. However, the radiation shielding mounting body of the present invention may have a structure in which the body mounting body has a cylindrical shape and is inserted into the cylindrical container from above.

  The present invention includes at least one of a lower mounting body that is detachably mounted on a bottom portion of a cylindrical container and an upper mounting body that is detachably mounted on an upper portion of the cylindrical container, and the lower mounting body and the upper mounting body It can be configured that the body has a lower shielding layer and an upper shielding layer containing a metal material having a radiation shielding function, and a sheet covering each of the lower shielding layer and the upper shielding layer.

  In this case, the lower mounting body is connected to the trunk mounting body via a fastening member. The upper mounting body is connected to the trunk mounting body via a fastening member.

  In the present invention, the metal material constituting the trunk shielding layer is an assembly of a large number of lead hairs or a lead plate having a deformable thickness. However, other metal materials can be used as long as they have a radiation shielding function.

  The radiation shielding container of the present invention is characterized in that a metal cylindrical container is covered with the radiation shielding mounting body.

  The radiation shielding mounting body of the present invention can shield radiation from contaminants inside the cylindrical container by mounting around the trunk of the metallic cylindrical container. As the cylindrical container, a standardized drum can can be used, and it is not necessary to prepare a special cylindrical container. In addition, the entire wide internal space of a cylindrical container such as a drum can can be used for storing contaminants.

  A radiation shielded container with a radiation shield attached to a cylindrical container such as a drum can can be temporarily placed at the decontamination site with contaminants in the cylindrical container, and can also be stored in temporary storage or intermediate storage facilities. It can be stored for a certain period. However, after the radiation shielding container is transported to a temporary storage place or an intermediate storage facility, the radiation shielding mounting body can be removed from the cylindrical container and used repeatedly for the next cylindrical container transportation work.

  Further, since the body-mounted body has a structure that can be easily deformed, when it is not used, it can be deformed to a nearly flat state and stored in a small space.

FIG. 1 shows a first embodiment of the present invention, (A) is a front view showing an external appearance of a radiation shielding container in which a radiation shielding mounting body is mounted on a drum can, and (B) is a plan view thereof. Front view showing a drum that is an example of a cylindrical container, (A) is a sectional view of the radiation shielding container of FIG. 1 (B) cut along line AA, (B) is a sectional view of the radiation shielding container of FIG. 1 (A) cut along line BB, The expanded sectional view which expanded C section of Drawing 3 (B), The expanded sectional view which expanded D section of Drawing 3 (A), The expanded sectional view which expanded the E section of Drawing 3 (A), The 2nd Embodiment of this invention is shown, (A) is a front view which shows the external appearance of the radiation shielding container which attached the radiation shielding mounting body to the drum can, (B) is the top view, (A) is a sectional view of the radiation shielding container of FIG. 7 (B) cut along line AA, (B) is a sectional view of the radiation shielding container of FIG. 7 (A) cut along line BB, The expanded sectional view which expanded the E section of Drawing 8 (A), FIG. 3 shows a third embodiment of the present invention, and (A) and (B) are cross-sectional views corresponding to FIGS. The expanded sectional view which expanded the E section of Drawing 10 (A), The 4th Embodiment of this invention is shown, (A) (B) is sectional drawing equivalent to FIG. 3 (A) (B), The expanded sectional view which expanded D section of Drawing 12 (A),

  The cylindrical container 1 shown in FIG. 2 is a standardized drum drum having a capacity of 200 liters made of steel plate. The cylindrical container 1 used in the present invention may be a drum can having a capacity of 500 liters made of a steel plate, or a dedicated container for decontamination made of, for example, an aluminum plate other than a steel plate. Also good.

  A cylindrical container 1 shown in FIG. 2 has a cylindrical body 2, and the bottom is closed by a bottom plate 4. Since this cylindrical container 1 is for storing low-concentration pollutants such as soil, weeds and dead leaves collected from the decontamination work from above, the upper part is open, and the disc-shaped lid 3 It is a structure that can be closed with.

  As shown in FIG. 1 and FIG. 3, the radiation shield mounting body that houses the cylindrical container 1 includes a body mounting body 10 that is detachably mounted around the body 2 of the cylindrical container 1, and an upper portion of the cylindrical container 1. The upper mounting body 20 that covers the bottom and the lower mounting body 30 that covers the bottom of the cylindrical container 1 are configured.

  As shown in FIG. 3 (B), the body mounting body 10 is plate-shaped or belt-shaped, has a length dimension that can be wound around the outer periphery of the body 2 of the cylindrical container 1, and is shown in FIG. 3 (A). As shown, it has a width dimension that can cover the entire upper and lower portions of the body 2.

  As shown in the sectional view of FIG. 5, the trunk mounting body 10 includes a trunk shielding layer 11 having a certain thickness, a flexible outer sheet 12 that covers the outer surface of the trunk shielding layer 11, and a trunk shielding. And a flexible inner sheet 13 that covers the inner surface of the layer 11. As shown in FIG. 5, the outer sheet 12 and the inner sheet 13 are bonded to each other at the upper side end portion 10 a of the body mounting body 10 through a heat seal or an adhesive. Similarly, as shown in FIG. 6, the outer surface sheet 12 and the inner surface sheet 13 are joined also at the lower side end portion 10 b of the trunk portion mounting body 10.

  As shown in FIG. 4, the outer surface sheet 12 and the inner surface sheet 13 are joined to each other at the first end portion 10 c and the second end portion 10 d that are directed in the winding direction. The outer sheet 12 and the inner sheet 13 are joined by heat sealing or stitching.

  The trunk portion shielding layer 11 is soft and deformable so as to be wound around the outer surface of the trunk portion 2 of the cylindrical container 1. The trunk portion shielding layer 11 is a mixture of, for example, lead hair (lead fiber) having a thickness of 0.2 to 0.8 mm and glass fiber having substantially the same thickness, and the lead hair and glass fiber are made of poly. Bonded with a binder of vinyl chloride (PVC) or other synthetic resin material. The thickness dimension of the trunk | drum part shielding layer 11 is about 3-20 mm, and can convert comparatively easily with external force. In addition, the trunk | drum shielding layer 11 can be formed with the lead plate of the thickness which can deform | transform, and can also be formed with the other metal material which can exhibit a radiation shielding function.

  The outer sheet 12 and the inner sheet 13 are laminated in which a synthetic resin sheet, a composite material of a synthetic resin fiber such as nylon fiber and a synthetic resin sheet, and a reinforcing material (split cloth) such as a metal net or a resin net are laminated on the resin sheet. It is composed of a flexible sheet such as a body.

  As shown in FIG. 1A and FIG. 4, a fastening belt 14 and a fastening belt 15 having a fastening metal fitting at the tip are fixed to the outer surface of the outer surface sheet 12 of the body mounting body 10. The fastening belts 14 and 15 are a woven sheet of a synthetic resin material such as nylon, a composite material of a synthetic resin fiber such as nylon fiber and a synthetic resin sheet, and a reinforcing material (split cloth) such as a metal net or a resin net is a resin sheet. It is composed of sandwiched laminates.

  A plurality of fastening belts 14 are provided, and each base portion is fixed to the surface of the outer sheet 12 by bonding or stitching means using a heat seal or an adhesive, and the tip portion is a first end portion 10c of the trunk mounting body 10. It extends from. A plurality of other fastening belts 15 are also provided, and each base portion is joined to the outer sheet 12.

  As shown in FIGS. 3A and 5, the upper mounting body 20 has a circular lid portion 20 a covering the upper portion of the lid body 3 of the cylindrical container 1 and a cylindrical shape continuously downward on the outer periphery of the lid portion 20 a. An extending circumferential ring portion 20b is integrally provided. The lid portion 20a and the circumferential ring portion 20b of the upper mounting body 20 are configured by laminating an upper shielding layer 21, an outer sheet 22 that covers the outer surface thereof, and an inner sheet 23 that covers the inner surface of the upper shielding layer 21. . The outer sheet 22 and the inner sheet 23 are joined at the lower edge 20c of the circumferential ring portion 20b.

  The upper shielding layer 21 has the same structure as the trunk shielding layer 11 of the trunk mounting body 10, and the outer sheet 22 and the inner sheet 23 are formed of the same material as the outer sheet 12 and inner sheet 13 of the trunk mounting body 10. Has been.

  The base end portions of the plurality of fastening belts 24 are fixed to the surface of the outer surface sheet 12 of the trunk portion mounting body 10. A base end portion of a fastening belt 25 having a fastening metal fitting at the front part is fixed to the surface of the outer sheet 22 provided on the circumferential ring part 20b of the upper mounting body 20, and a front part having the fastening metal fitting is a circumferential ring part 20b. It is located below the lower edge portion 20c.

  As shown in FIG. 1B, both end portions of a handle belt 36 used when lifting the upper mounting body 20 are joined to the surface of the outer sheet 22 constituting the lid portion 20a of the upper mounting body 20. The handle belt 36 is formed of the same material as the fastening belt 24 and the like.

  As shown in FIG. 3A and FIG. 6, the lower mounting body 30 includes a bottom portion 30a that covers the bottom plate 4 of the cylindrical container 1 and a peripheral ring portion 30b that extends in a cylindrical shape upward from the outer periphery of the bottom portion 30a. Is provided. The bottom 30a and the peripheral ring portion 30b of the lower mounting body 30 are configured by laminating a lower shielding layer 31, an outer sheet 32 that covers the outer surface thereof, and an inner sheet 33 that covers the inner surface of the upper shielding layer 21. The outer sheet 32 and the inner sheet 33 are joined to each other at the upper edge 30c of the circumferential ring part 30b.

  The lower shielding layer 31 has the same structure as the trunk shielding layer 11 of the trunk mounting body 10, and the outer sheet 32 and the inner sheet 33 are made of the same material as the outer sheet 12 and inner sheet 13 of the trunk mounting body 10. Has been.

  The base end portions of the plurality of fastening belts 34 are fixed to the lower surface of the outer surface sheet 12 of the trunk portion mounting body 10. A base end portion of a fastening belt 35 having a fastening bracket at the front end is fixed to the surface of an outer sheet 32 provided on the circumferential ring portion 30b of the lower mounting body 30, and a tip portion having the fastening bracket is a circumferential ring portion 30b. It can extend above the upper edge portion 30c.

  As shown in FIG. 1 (A), a sling passage 41 is attached to the surface of the outer surface sheet 22 of the peripheral ring portion 20b of the upper mounting body 20, and the surface of the outer surface sheet 32 of the peripheral ring portion 30b of the lower covering body 30 is attached. A sling loop 42 is attached. The sling passages 41 and 42 are made of the same material as the fastening belt, or are made of metal or reinforced plastic. As shown in FIG. 1 (B), the sling passage 41 and the sling passage 42 are provided at four positions at an arrangement interval of 90 degrees. The sling 43 for lifting the whole is disposed on the lower surface of the bottom portion 30a of the lower mounting body 30 and is attached so as to extend through the respective sling passage 41 and the sling passage 42.

  Next, an assembly operation for mounting the radiation shielding mounting body according to the first embodiment on the cylindrical container 1 to constitute the radiation shielding container will be described.

  A radiation shielding mounting body is attached to the cylindrical container 1 before introducing contaminants such as soil, vegetation, dead leaves, and earth and sand generated by the decontamination work into the cylindrical container 1 such as a drum can opened upward. However, after putting the contents into the cylindrical container 1, the radiation shielding mounting body may be attached to the cylindrical container 1.

  The mounting operation is performed by winding a plate-shaped or belt-shaped body mounting body 10 around the body 2 of the cylindrical container 1 and, as shown in FIGS. 3B and 4, the first end of the body mounting body 10. The fastener 10 at the front end of the fastening belt 15 extending from the second end 10d is attached to the fastening belt 14 extending from the first end 10c at a plurality of locations by overlapping the portion 10c and the second end 10d. The body attachment body 10 is fastened to the body 2 with the fastening belt 14 and the fastening belt 15.

  A lower mounting body 30 is mounted on the bottom of the cylindrical container 1. The bottom plate 4 of the cylindrical container 1 is covered with the bottom portion 30 a of the lower mounting body 30, and the lower end portion of the body mounting body 10 is covered with the peripheral ring portion 30 b of the lower mounting body 30. The fastening belt 34 extending from the body mounting body 10 is wound around and connected to the fastening member of the fastening belt 35 extending from the lower mounting body 30, and the fastening belts 34 and 35 are tightened, whereby the lower mounting body 30 is firmly attached to the bottom. .

  After the body mounting body 10 and the lower mounting body 30 are attached to the cylindrical container 1, a contaminant is introduced into the body 2 of the cylindrical container 1, and the opening above the body 2 is made of a metal lid. Cover with 3. As shown in FIG. 5, after the upper opening of the body 2 is covered with the lid 3, metal or plastic hooks 45 are hung at a plurality of positions on the edge of the lid 3, and the lid 3 is covered with the hook 45. And the upper part of the body mounting body 10 is pressed against the outer surface of the body 2 to stabilize the installation state.

  The plurality of hooks 45 are preferably fixed in advance to the surface of the outer sheet 12 of the trunk portion mounting body 10. In this case, after putting the contents in the cylindrical container 1 and closing the lid 3, the trunk mounting body 10 is wound around the trunk 2 while hooking the hook 45 on the edge of the lid 3, so that a relatively large mass is obtained. It becomes easy to wind the large body mounting body 10 around the cylindrical container 1.

  Thereafter, the upper portion of the lid 3 is covered with the upper mounting body 20, and the upper portion of the trunk mounting body 10 and the hook 45 are covered with the peripheral ring portion 20 b of the upper mounting body 20. The fastening belt 24 extending upward from the body mounting body 10 is wound around and connected to the fastening bracket of the fastening belt 25 extending downward from the circumferential ring portion 20b, and the fastening belts 24, 25 are tightened, whereby the upper mounting body 20 is Can be attached firmly.

  As shown in FIG. 4, the body mounting body 10 has the first end portion 10 c and the second end portion 10 d overlapped, and the end portions of the body portion shielding layer 11 overlap each other and are fastened to the body portion 2. Therefore, the outer periphery of the trunk portion 2 can be covered with the trunk portion shielding layer 11 without a gap. The bottom plate 4 of the cylindrical container 1 is also covered with the lower shielding layer 31 on the bottom 30 a of the lower mounting body 30. Furthermore, the lower part of the trunk part mounting body 10 is overlapped with the circumferential ring part 30b of the lower part mounting body 30, and the trunk part shielding layer 11 of the trunk part mounting body 10 and the lower shielding layer 31 of the circumferential ring part 30b are superimposed. The connecting portion between the trunk mounting body 10 and the lower mounting body 30 can be covered with a shielding layer without a gap. Similarly, the entire area of the lid 3 is covered with the lid 20a of the upper mounting body 20 and the circumferential ring portion 30b is overlapped on the surface of the trunk mounting body 10, so The connecting portion with the mounting body 20 can also be covered with a shielding layer without a gap.

  Therefore, it is possible to suppress radiation from contaminants inside the cylindrical container 1 from coming out of the radiation shielding container.

  As shown in FIG. 1B, a sling 43 is installed on the lower surface of the lower mounting body 30, and four sling passages 42 attached to the peripheral ring portion 30 b of the lower mounting body 30, and the periphery of the upper mounting body 20. Slings 43 passed through the four sling streets 41 attached to the ring portion 20 b extend above the upper mounting body 20. By pulling up the sling 43 with a crane or the like, the radiation shielding container containing the contaminant can be lifted.

  In the embodiment shown in FIG. 1, the sling passages 41 and 42 are attached to the upper mounting body 20 and the lower mounting body 30, and are not attached to the trunk mounting body 10. Therefore, the sling 43 can be passed through the sling passages 41 and 42 in advance, and the upper mounting body 20 and the lower mounting body 30 can be connected via the sling 43. In this case, after the body mounting body 10 is mounted on the body 2 of the cylindrical container 1, the upper mounting body 20 and the lower mounting body 30 connected by the sling 43 can be mounted on the lower and upper portions of the cylindrical container 1. become.

As shown in FIG. 1, the contaminants can be temporarily stored at the decontamination site using the radiation shielding container in which the cylindrical container 1 is covered with the body mounting body 10, the upper mounting body 20, and the lower mounting body 30. In addition, it can be transported from the decontamination site to a temporary storage location, and further transported from the temporary storage location to an intermediate storage facility. Although storage may be continued in each facility in a state where the cylindrical container 1 is covered with the body mounting body 10, the upper mounting body 20, and the lower mounting body 30, the radiation shielding mounting body according to the embodiment is free from contaminants. After the cylindrical container 1 is transported to the respective facilities, the body mounting body 10, the upper mounting body 20 and the lower mounting body 30 are removed from the cylindrical container 1, and returned to the contamination site, and a cylindrical container such as a new drum can 1 can be used repeatedly.
A cylindrical container such as a drum can can be used repeatedly.

  Next, other embodiments of the radiation shield mounting body and the radiation shield container will be described. In the following embodiments, the same structural parts as those in the first embodiment are denoted by the same reference numerals, detailed description thereof is omitted, and portions that are different from the first embodiment are mainly described.

  In the second embodiment shown in FIGS. 7 to 9, the lower mounting body 30 </ b> A is mounted on the cylindrical container 1. The lower mounting body 30 </ b> A has a bottom portion 30 a installed on the lower side of the bottom plate 4 of the cylindrical container 1 and a peripheral ring portion 30 b installed on the lower portion of the body portion 2 of the cylindrical container 1.

  In this embodiment, the lower mounting body 30 </ b> A is first mounted on the lower portion of the cylindrical container 1, and then the body mounting body 10 is wound around the body 2. Thereafter, the lower mounting body 30A and the body mounting body 10 are coupled by fastening with the fastening belt 34 attached to the body mounting body 10 and the fastening belt 35 attached to the lower mounting body 30A.

  In the second embodiment shown in FIG. 7 and FIG. 8, after the lower mounting body 30 is mounted below the bottom plate 4 of the cylindrical container 1 such as a drum can, the body mounting body 10 is mounted on the body while the cylindrical container 1 is standing. Since it can wind around the part 2, an assembly work is easy.

  As shown in FIG. 7, the lower sling passage 42 is attached to the outer sheet 12 at the lower part of the body mounting body 10. The sling 43 is previously passed through the sling passage 42 of the trunk mounting body 10 and the sling passage 41 of the upper mounting body 30, and when the trunk mounting body 10 is wound around the trunk portion 2, the sling 43 is mounted on the cylindrical container 1. It is made to enter under the made lower mounting body 30A. By mounting the upper mounting body 20, the cylindrical container can be covered with a shielding layer and can be further lifted by the sling 43.

  In the third embodiment shown in FIGS. 10 and 11, the lower mounting bodies 30 and 30A used in the first embodiment and the second embodiment are not used. In the third embodiment, the laying shield 50 is placed inside the cylindrical container 1 and laid inside the bottom plate 4 before introducing the contaminant into the cylindrical container 1. As shown in an enlarged view in FIG. 11, the laying shield 50 includes a laying shielding layer 51 and sheets 52 and 53 that cover both sides of the laying shielding layer 51. The laying shielding layer 51 has the same structure as the trunk portion shielding layer 11 of the trunk portion mounting body 10, and the sheets 52 and 53 are formed of the same material as the outer sheet 12 and the inner surface sheet 13 of the trunk portion mounting body 10. .

  In the third embodiment, the laying shield 50 is placed inside the empty cylindrical container 1, laid inside the bottom plate 4, and after the body mounting body 10 is mounted, the contaminant is introduced. And after closing with the cover body 3, the upper mounting body 20 is mounted | worn.

  Also in this case, as in FIG. 7, the sling 43 that is passed through the sling passage 42 attached to the body attachment body 10 and the sling passage 41 attached to the upper attachment body 20 is placed under the bottom plate 4 of the cylindrical container 1. The whole can be lifted by a crane or the like using the sling 43.

  Alternatively, before installing the upper mounting body 20 without using the sling 43, the drum lifter is used to hold and lift the edge of the opening of the cylindrical container 1 and place it on a truck or the like. The mounting body 20 may be mounted.

  In the fourth embodiment shown in FIGS. 12 and 13, the radiation shield mounting body is constituted only by the body mounting body 10, and the upper mounting body 20 and the lower mounting body 30 are not used.

  The body mounting body 10 is mounted on the body 2 of the cylindrical container 1, and the same laying shield 50 as shown in FIGS. 10 and 11 is laid on the bottom plate 4 inside the container, and then the cylindrical container 1 is filled with pollutants.

  After the pollutant is introduced into the cylindrical container 1, the cover shield 60 is placed on the contents, and then the opening of the cylindrical container 1 is closed with the lid 3. Then, the clip 45 holds the edge of the lid 2 and holds the upper portion of the trunk mounting body 10.

  As shown in FIG. 13, the cover shield 60 includes a cover shield layer 61 and sheets 62 and 63 covering the cover shield layer 61. The laying shield 50 and the cover shield 60 are exactly the same, and can be used without distinction.

  In the fourth embodiment, the sling 43 may be passed through the sling passage attached to the body mounting body 10 and the sling 43 may be hung on the bottom of the cylindrical container 1 so that it can be lifted, or a drum can lifter is used. Can be lifted.

  Further, in the radiation shielding container of the present invention, the lower mounting bodies 30 and 30A are mounted on the lower part of the cylindrical container 1, and the upper shield 20 is not used on the upper part of the cylindrical container 1, and the bar shield 60 is mounted. It may be used.

  In each of the above-described embodiments, the body mounting body 10 is fastened by the fastening belts 14 and 15 having the fasteners, and between the body mounting body 10 and the upper mounting body 30 and between the body mounting body 10 and the lower mounting body. 20 is also connected by a fastening belt having a fastening bracket, but this fastening belt may be coupled by a buckle instead of a fastening bracket or by using a hook-and-loop fastener.

  Furthermore, the trunk | drum mounting body 10 itself may be formed in a cylindrical shape, and may be inserted and attached to the outer side of the cylindrical container 1 which is a drum can from the upper direction.

DESCRIPTION OF SYMBOLS 1 Cylindrical container 2 trunk | drum 3 cover body 4 bottom plate 10 trunk | drum mounting body 11 trunk | drum shielding layer 12 outer sheet | seat 13 inner sheet | seat 14,15 fastening belt 20 upper mounting | wearing body 20a lid | cover part 20b circumferential ring part 21 upper shielding layer 22 outer sheet | seat 23 inner surface sheets 24 and 25 fastening belt 30 lower mounting body 30a bottom 30b peripheral ring portion 31 lower shielding layer 32 outer surface sheet 33 inner surface sheets 34 and 35 fastening belts 41 and 42 sling through 43 sling 50 laying shielding body 60 cover shielding body

Claims (7)

It is equipped with a body mounting body that is attached to the detachment itself around a metal cylindrical container,
The trunk mounting body includes a trunk shielding layer formed so as to be deformable including a metal material having a radiation shielding function, and a sheet that covers the trunk shielding layer. Wearing body.   The radiation shielding according to claim 1, wherein the trunk part mounting body is wound around the trunk part of the cylindrical container, and a fastening member is provided to fix the trunk part mounting body in a state of being wound around the trunk part of the cylindrical container. Wearing body.   At least one of a lower mounting body that is detachably mounted on the bottom of the cylindrical container and an upper mounting body that is detachably mounted on the upper part of the cylindrical container is provided, and the lower mounting body and the upper mounting body are provided with radiation. The radiation shielding mounting body according to claim 1, comprising a lower shielding layer and an upper shielding layer containing a metal material having a shielding function, and a sheet covering each of the lower shielding layer and the upper shielding layer.   The radiation shielding mounting body according to claim 3, wherein the lower mounting body is coupled to the body mounting body via a fastening member.   The radiation shielding mounting body according to claim 3 or 4, wherein the upper mounting body is coupled to the body mounting body via a fastening member.   The radiation shielding mounting body according to any one of claims 1 to 5, wherein the metal material forming the trunk shielding layer is an assembly of a large number of lead hairs or a lead plate having a deformable thickness.   A radiation shielding container characterized in that a metal cylindrical container is covered with the radiation shielding mounting body according to any one of claims 1 to 6.

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