JP3177263U - container - Google Patents

Abstract

An easily manufactured container for sealing and transporting and storing radioactive waste is provided.
A container for transporting and storing radioactive waste in a sealed manner, comprising a housing part and a door part or a lid part capable of opening the housing part. Formed of a laminated body having a first layer containing steel, a second layer containing steel, a bonding layer that bonds the first layer and the second layer, and an outer wall made of a corrugated steel plate or a steel plate having a rib structure. The
[Selection] Figure 1

Description

  The present invention relates to a container. In particular, the present invention relates to a container for storing radioactive waste.

Regarding the technology related to the radioactive waste storage container, Patent Document 1 describes a radioactive waste disposal container, a method for manufacturing a radioactive waste disposal container, and a manufacturing apparatus for a radioactive waste disposal container.
Patent Document 2 describes a geological disposal container for radioactive waste.
Patent Document 3 describes a transport storage container for radioactive waste.

JP 2009-295055 A JP 2001-40622 A JP 2005-415803 A

  Many buildings and trees were destroyed by the Great East Japan Earthquake that occurred on March 11, 2011, and a huge amount of debris was collected. These rubbles were exposed by the subsequent accident at the Fukushima Daiichi nuclear power plant, making it even more difficult to deal with. At the time of filing of the present invention more than a year after the disaster, 4.76 million tons of waste in Iwate Prefecture and 15.69 million tons in Miyagi Prefecture are left untreated. This amount is said to be equivalent to 19 years of general waste in Miyagi Prefecture and 11 years in Iwate Prefecture.

  All of the above-described prior arts were invented before March 11, 2011, and it is not assumed that a large amount of radioactive waste is treated. All of these documents are suitable for the treatment of radioactive waste whose emissions can be predicted, but cannot deal with suddenly large amounts of debris.

On the other hand, these radioactive wastes have a low risk because their surfaces are contaminated. Therefore, since safety standards required for storage containers are low, there is an urgent need to provide containers that can be mass-produced as easily and inexpensively as possible and that can be easily stored.
There is also an urgent need to provide a container for storing other radioactive materials. Here, the other radioactive substance may be, for example, work clothes for workers who work in radiation or in a space where a radioactive substance exists, a flexible container bag, and the like.

  In view of these circumstances, an object of the present invention is to provide an easily manufactured container for sealing and transporting and storing radioactive waste.

  In order to solve the problem, the first device is a substantially rectangular parallelepiped housing portion having an upper wall portion, a floor portion, a side wall portion, and an opening provided on one side of the side wall portion on the lateral side, A container for sealing and transporting and storing radioactive waste comprising a door provided to be able to close the opening, wherein the upper wall, the side wall, and the door are lead A first layer including: a second layer including a steel material; a third layer including a steel material bonded to the other surface of the first layer; and a corrugated steel plate or And an outer wall made of a steel plate having a rib structure.

  According to a second aspect of the present invention, the floor portion is joined to a fourth layer containing lead, one surface of the fourth layer, a fifth layer containing steel, and the other surface of the fourth layer. It is the container of the 1st device formed by the 2nd layered product which joins and has the 6th layer which is a plywood.

  According to a third aspect of the present invention, the container according to the first or second aspect, wherein the first laminate has a thickness of 3 mm for the first layer, 1 mm for the second layer, and 1 mm for the third layer. It is.

  According to a fourth aspect of the present invention, the container according to the second or third aspect, wherein the second laminate has a thickness of 3 mm for the fourth layer, 1 mm for the fifth layer, and 20 mm for the sixth layer. It is.

  A fifth device is a substantially rectangular parallelepiped housing portion having an upper wall portion having a square opening, a floor portion, and a side wall portion, and formed in an area not exceeding the area of the upper wall portion in a top view. A container for sealing and transporting and storing radioactive waste, wherein the upper wall part, the side wall part, and the lid part are provided with a lid part capable of closing the opening. A first layer containing lead, a second layer containing steel material joined to one surface of the first layer, a third layer containing steel material joined to the other surface of the first layer, and a corrugated material And an outer wall made of a steel plate or a steel plate having a rib structure.

  According to a sixth aspect of the present invention, the floor further includes a fourth layer containing lead, a fifth layer containing a steel material bonded to one surface of the fourth layer, and the other surface of the fourth layer. It is the container of the 5th apparatus formed by the 2nd laminated body which has joined and the 6th layer which is a plywood.

  In a seventh aspect of the present invention, the container according to the fifth or sixth aspect is further provided, wherein the first laminate has a thickness of 3 mm for the first layer, 1 mm for the second layer, and 1 mm for the third layer. It is.

  According to an eighth aspect of the present invention, the container according to the sixth or seventh aspect further includes the second laminate having a thickness of 3 mm for the fourth layer, 1 mm for the fifth layer, and 20 mm for the sixth layer. It is.

  According to a ninth aspect of the present invention, the accommodating portion further includes an accommodating portion-side protruding portion protruding upward at an edge of the opening of the upper wall portion, and the lid portion protrudes downward to the outer edge. 1 lid portion side projecting portion, a second lid portion side projecting portion projecting downward inward from the first lid portion side projecting portion, the first lid portion side projecting portion, and the second lid A flat portion provided between the portion-side projecting portions, and when the accommodating portion-side projecting portion comes into contact with the planar portion, the accommodating portion is closed by the lid portion. A container according to any one of Items 8 to 8.

  According to a tenth aspect of the present invention, the accommodating portion is further provided with a first reinforcing member over substantially the entire length of the joining side between the upper wall portion and the pair of opposing side wall portions, and the accommodating portion Is provided with a first recess disposed so that the first reinforcing member is substantially flush with the upper surface and the side surface of the housing portion, and the lid portion of the second lid-side protruding portion A second reinforcing member is provided on the inner side, and the lid portion includes a second concave portion that is provided so that the second reinforcing member is substantially flush with the upper surface of the lid portion. It is a container of the idea.

According to the present invention, since it is possible to use an inexpensive material that is easy to procure, a container that can be mass-produced more quickly can be provided. Moreover, since the layer containing lead is provided, the radiation shielding effect can be secured.
Further, since the opening is provided on the side surface, a facility such as a crane is not required when the radioactive waste is accommodated. Moreover, the burden of the worker who engages in carrying in / out work is reduced.
Further, by providing the opening on the upper surface, the container can be opened and closed, and the radioactive waste can be contained and securely sealed without the operator directly touching the radioactive waste.

It is a section explanatory view of the container concerning a 1st embodiment of the present invention. It is explanatory drawing which shows the external appearance of the container of FIG. It is explanatory drawing of a 1st laminated body and a 2nd laminated body. It is a section explanatory view of a container concerning a 2nd embodiment of the present invention.

<First Embodiment>
FIG. 1 is a cross-sectional explanatory view of a container 1 according to an embodiment of the present invention. FIG. 1A is a cross-sectional explanatory view in the longitudinal direction of the container 1, and FIG. 1B is a cross-sectional explanatory view in the transverse direction orthogonal to FIG. 1A.

  The container 1 is provided on an upper wall portion 2a, a floor portion 2d, two opposing side wall portions 2b and 2c, and one side surface (one end surface) of the side wall portion in the lateral direction, that is, one side surface of the side wall portion 2c. A substantially rectangular parallelepiped housing portion 2 having an opening (not shown), and a door portion 3 (see FIG. 2) provided to be able to close the opening.

  The container 1 includes an outer frame 41 provided integrally along the corner and the ridge. The outer frame 41 has a substantially rectangular parallelepiped frame structure, and includes eight corner brackets 42, two upper beams 43, two lower beams 44, two upper beams 45, and two lower members 46. And four corner posts 47.

  The corner fitting 42 is a solid or hollow square member provided at the corner of the container 1 for handling, stacking, tightening and securing the container 1. The corner fitting 42 is provided with an attachment structure 42a for attaching the container 1 to a transportation device or the like. This attachment structure 42a can be implemented as a conventional member such as a twist lock, hook, shackle or the like.

  The upper beam 43 is a member made of square or plate material that joins the upper corner metal fitting 42 in the transverse direction. A fixture 43a (see FIG. 2) for attaching the sealing portion 80a of the fastening tool 80 to the door portion 3 is provided on the upper beam 43 on the surface on which the door portion 3 is provided. In the present embodiment, two attachment tools 43a and 43b are provided at a predetermined distance from the open position at the center of the door 3 at a predetermined distance.

The lower beam 44 is a member made of square or plate material that joins the lower corner metal fittings 42 in the transverse direction. A fixture 44 a (see FIG. 2) for attaching the sealing portion 80 a of the fastening tool 80 to the door portion 3 is provided on the lower beam 44 on which the door portion 3 is provided. In the present embodiment, two fixtures 44a and 44b are provided at a predetermined distance from the center open position of the door 3 at a predetermined distance, and the sealing portion 80a is attached between the opposing fixtures 43a and 43b. It is done.
When a tunnel recess or the like is provided on the lower surface of the container 1, a recess (not shown) that opens downward in a predetermined shape is provided in the lower beam 44 or the lower 46.

The upper cover 45 is a member made of square or plate material, which joins the upper corner metal fitting 42 in the longitudinal direction.
The lowering 46 is a member made of square or plate material that joins the lower corner metal fittings 42 in the longitudinal direction. The lowering 46 includes fork pockets 15 that are spaced apart from each other by a predetermined distance corresponding to the fork width of the forklift.

The corner column 47 is a vertical square member or a plate member having an L-shaped cross section in the four corners of the container 1 by connecting the upper and lower corner brackets 42.
In order to prevent the container from being damaged due to malfunction or misfit of the cargo handling equipment, a reinforcing plate member such as a doubler plate is provided along the upper beam 43 in the vicinity of the upper corner metal fitting, for example. Also good.

  FIG. 2 is an explanatory diagram showing the appearance of the container 1 of FIG. 2A shows the side wall 2b, FIG. 2B shows the side wall 2c with the door 3 attached, and FIG. 2C shows the floor 2d in the upper half of the drawing and the upper wall in the lower half of the drawing. Part 2a is shown.

  As shown in FIG. 2 (a), the side wall portion 2b, which is a side surface in the longitudinal direction, has an outer periphery reinforced by an upper 45, a lower 46, and a corner post 47, and an outer wall 54 (described later) Reinforcement processing by the shape of etc. is given. Although not shown, the inner wall surface can be further secured by providing a rib structure. The corrugated outer wall 54 is used for the outer walls of all the surfaces constituting the container 1 except for the floor 2d.

  As shown in FIG. 2B, the door portion 3 includes a pair of left and right door portions 3a and 3b which are attached and fixed to the side wall portion 2c so as to be able to open both sides, and a handle 3c. The handle 3c is attached near the center of the open side end of the door 3b. When opening the door 3, the door 3b is first opened using the handle 3c, and then the door 3a is opened. When blocking, block in the reverse order.

  A fastening tool 80 for fastening the container 1 up and down is provided at the end of the door 3. After the container 1 is in the closed state, the container 1 can be completely sealed by locking the fastener 80 to the accommodating portion 2. In this embodiment, the fastener 80 is implemented as a sealing portion 80a and an operation portion 80b. The upper end of the sealing portion 80a is coupled to the fixture 43a provided on the upper beam 43, and the lower end is coupled to the fixture 44a provided on the lower beam 44 via the operation unit 80b. When the operator operates the operation unit 80b, the sealing unit 80a is tightened and the container 1 is sealed. In addition, the flow line required for work can be shortened by installing the left and right operation units 80b in the opposite directions.

  As shown in FIG. 2 (c), the floor 2d is composed of a second laminated body 601 to be described later, and has a strength that can particularly withstand the loaded weight. Further, the upper wall portion 2a has strength due to the corrugated shape.

  FIG. 3 is an explanatory diagram of the first stacked body 501 and the second stacked body 601. FIG. 3A shows a first laminated body 501 that forms the upper wall portion 2a and the side wall portion 2b. FIG. 3B shows a second laminate 601 that forms the floor 2d.

  The first laminated body 501 includes a first layer 51 containing lead, a second layer 52 containing a steel material, a third layer 53 containing a steel material bonded to the other surface of the first layer, a corrugated steel plate or a rib. And a first laminated body 501 having an outer wall 54 made of a steel plate having a structure.

  The first layer 51 is made of a plate material containing lead. Lead is suitable as a material for the container 1 of the present invention in terms of shielding effect of radiation performance and material cost. Since the radioactive waste planned to be accommodated in the container 1 of the present invention is shaved soil surface, debris exposed only on the surface, etc., the first layer 51 may have a thickness of about 3 mm.

The second layer 52 is joined to one surface 56 of the first layer 51 and is made of a plate material including a steel material, and the thickness is about 1 mm.
The third layer 53 is joined to the other surface 55 of the first layer and is made of a plate material including a steel material, and the thickness is about 1 mm. Since the hardness of the first layer 51 is low, the hardness can be ensured by providing the second layer 52. At this time, the thickness of the second layer 52 may be about 1 mm. Further, by setting the thickness of the third layer 53 to about 1 mm, the hardness of the upper wall portion 2a and the side wall portions 2b and 2c can be ensured.

  Furthermore, an outer wall 54 made of steel is provided as the outermost layer of the first laminate 501. As the outer wall 54, a corrugated steel plate or a steel plate having a rib structure is used. With the outer wall 54, the strength of the upper wall portion 2a and the side wall portions 2b and 2c can be secured.

  Furthermore, bonding layers 57 and 58 (not shown) may be provided on the bonding surfaces of the first layer 51 to the third layer 53. Since adjacent layers are made of different materials, it is difficult to directly bond them, and even if they are bonded, they are easily separated. Therefore, by sandwiching the plywood layer between the layers and bonding the plywood and each layer with an adhesive or the like, each layer can be made difficult to peel off.

  FIG. 3B shows a second laminate 601 that forms the floor 2d. The floor portion 2d is joined to the fourth layer 61 containing lead, one surface of the fourth layer 61, the fifth layer 62 containing steel, and the other surface of the fourth layer 61, and plywood. And a second laminated body 601 having a sixth layer 63.

  In the second stacked body 601, the configurations of the fourth layer 61 and the fifth layer 62 may be the same as the configurations of the first layer 51 and the second layer 52 in the first stacked body 501. In other words, a container capable of sealing radioactive waste and preventing radiation leakage can be manufactured by using only these two layers, so that the manufacturing cost is low and the material is easily available, so that mass production is possible.

In the 2nd laminated body 601, the 6th layer 63 is further provided with the plywood of about 20 mm. By the sixth layer, it is possible to ensure the strength with respect to the weight of the radioactive waste stored in the storage unit 2.
The sixth layer 63 may be configured as a part of the second stacked body 601 as described above, but may be sandwiched as a constituent member between the housing portion 2 and the outer frame 41.

Second Embodiment
FIG. 4 is a cross-sectional explanatory view of the container 101 according to the second embodiment of the present invention. FIG. 1A is a cross-sectional explanatory view in the longitudinal direction of the container 101, and FIG. 1B is a cross-sectional explanatory view in the transverse direction orthogonal to FIG. 1A. FIG. 1C is a partially enlarged view of FIG.

  The container 101 includes a storage unit 102 and a lid 103 that closes the storage unit 102 after storing the waste. The accommodating part 102 is formed in a substantially rectangular parallelepiped shape having two sets of opposing side wall parts (a side wall part 102b on the longitudinal direction side and a side wall part 102c on the lateral side), a floor part 102d, and an upper wall part 102a. A rectangular opening 102h is formed in the upper wall portion 102a. The lid portion 103 is formed in an area that does not exceed the area of the upper wall portion 102a in a top view, and is provided so as to close the opening 102h.

  A hollow or solid first reinforcing member 12 for reinforcing the container 101 is provided on the upper wall portion 102 a of the accommodating portion 102. The first reinforcing member 12 is disposed over substantially the entire length of the joint side between the upper wall portion 102a and the side wall portion 102b of the housing portion 102. When the first reinforcing member 12 is disposed, the joint portion between the upper wall portion 102a and the side wall portion 102b so that the upper surface of the first reinforcing member 12 and the upper wall portion 102a of the accommodating portion 102 are flush with each other. In addition, a first recess 102g having an L-shaped cross section that opens to the outside of the container 101 is provided.

  An accommodating portion side protruding portion 102f that protrudes upward is provided around the edge of the opening 102h of the upper wall portion 102a.

  The lid portion 103 is formed in an area that does not exceed the area of the upper wall portion 102a of the accommodating portion 102 as viewed from above, and has a substantially rectangular shape. The lid 103 includes a first lid-side projection 103b that projects downward from the outer edge, a second lid-side projection 103c that projects downward from the first lid-side projection 103b, and a first lid. A flat portion 103d is provided between the portion-side protruding portion 103b and the second lid portion-side protruding portion 103c.

  After the debris and the like are accommodated in the container 101, the container 101 moves the lid portion 103 close to the housing portion 102, and the housing portion side protruding portion 102 f is brought into contact with the flat surface portion 103 d, so It is blocked by. An elastic member or the like may be provided on the flat surface portion 103d in order to protect the accommodating portion side protruding portion 2f and ensure higher sealing performance.

  Furthermore, a second reinforcing member 13 for reinforcing the lid portion 103 is provided in a substantially rectangular shape in top view so as to surround the lid portion 103 inside the second lid portion side protruding portion 103 c. The lid 103 includes a second recess 103f downward so that the upper surface 103a is flush with the upper surface 103a of the second reinforcing member 13 when the second reinforcing member 13 is disposed. Yes.

  The container 101 further includes an outer frame 141. The outer frame 141 includes four upper corner brackets 142a, four lower corner brackets 142b, two upper beams 143 (not shown), two lower beams 144, and two upper beams 145 (not shown). ), Two lowered 146, and four corner posts 147.

  The four upper corner fittings 142a are provided with recesses opened on the inner space side, that is, on the container 101 side, and the protection members 21 provided at the four corners on the upper wall portion 102a of the accommodating portion 102 are fitted in the recesses. Thus, the container 101 is engaged with the upper surface and the upper side surface of the container 101. The four lower corner brackets 142b are implemented in the same manner as in the first embodiment.

  Further, the height of the upper corner metal fitting 142a is formed higher than the height of the lid portion 103, so that the lid portion 103 can be protected when a plurality of containers 101 are stacked with the outer frame 141 fitted together. .

  Further, a pair of engaging members corresponding to the upper surface of the upper corner metal fitting 142a and the lower surface of the lower corner metal fitting 142b may be provided so that the upper and lower containers 101 are stabilized when the containers 101 are stacked.

  Since the second embodiment is the same as the first embodiment except for the points described above, the description thereof will be omitted.

DESCRIPTION OF SYMBOLS 1 Container 2 Storage part 2a Upper wall part 2b, 2c Side wall part 2d Floor part 3 Door part 15 Fork pocket 41,141 Outer frame 42,142 Corner metal fittings 44,144 Beam 45,145 Upper 46,146 Lower 47,147 Corner pillar 51 1st layer 52 2nd layer 53 3rd layer 54 Outer wall 61 4th layer 62 5th layer 63 6th layer 80 Fastener 80a Sealing part 80b Operation part 103 Lid 501 1st laminated body 601 2nd Laminate

Claims (10)

A substantially rectangular parallelepiped housing portion having an upper wall portion, a floor portion, a side wall portion, and an opening provided on one side of the side wall portion on the lateral side;
A door provided to be able to close the opening;
A container for sealing and transporting and storing radioactive waste with
The upper wall portion, the side wall portion, and the door portion are
A first layer containing lead;
A second layer bonded to one surface of the first layer and containing a steel material;
A third layer bonded to the other surface of the first layer and containing a steel material;
An outer wall made of a corrugated steel plate or a steel plate with a rib structure;
A container formed by a first laminate having The floor is
A fourth layer containing lead;
Bonded to one surface of the fourth layer, a fifth layer containing steel,
A sixth layer which is a plywood bonded to the other surface of the fourth layer;
The container according to claim 1, formed by a second laminate having   The container according to claim 1 or 2, wherein the first laminate has a thickness of 3 mm for the first layer, 1 mm for the second layer, and 1 mm for the third layer.   The container according to claim 2 or 3, wherein the second laminated body has a thickness of 3 mm for the fourth layer, 1 mm for the fifth layer, and 20 mm for the sixth layer. A substantially rectangular parallelepiped housing portion having an upper wall portion having a square opening, a floor portion, and a side wall portion;
A lid portion that is formed in an area that does not exceed the area of the upper wall portion when viewed from above, and that is provided so as to close the opening;
A container for sealing and transporting and storing radioactive waste with
The upper wall portion, the side wall portion, and the lid portion are
A first layer containing lead;
A second layer bonded to one surface of the first layer and containing a steel material;
A third layer bonded to the other surface of the first layer and containing a steel material;
An outer wall made of a corrugated steel plate or a steel plate with a rib structure;
A container formed by a first laminate having The floor is
A fourth layer containing lead;
Bonded to one surface of the fourth layer, a fifth layer containing steel,
A sixth layer which is a plywood bonded to the other surface of the fourth layer;
The container according to claim 5, formed by a second laminate having   The container according to claim 5 or 6, wherein the first laminate has a thickness of 3 mm for the first layer, 1 mm for the second layer, and 1 mm for the third layer.   The container according to claim 6 or 7, wherein the second laminate has a thickness of 3 mm for the fourth layer, 1 mm for the fifth layer, and 20 mm for the sixth layer. The housing portion is provided with a housing-side protruding portion that protrudes upward at an edge of the opening of the upper wall portion,
The lid is
A first lid-side protruding portion protruding downward on the outer edge;
A second lid-side projecting portion projecting downward from the first lid-side projecting portion;
A plane portion provided between the first lid portion side protruding portion and the second lid portion side protruding portion;
Around
The container according to any one of claims 5 to 8, wherein the housing portion is closed by the lid portion when the housing portion side protruding portion is brought into contact with the flat surface portion. The accommodating portion is provided with a first reinforcing member over substantially the entire length of the joining side between the upper wall portion and the pair of side wall portions facing each other.
The accommodating portion includes a first recess that is disposed so that the first reinforcing member is substantially flush with an upper surface and a side surface of the accommodating portion,
The lid is provided with a second reinforcing member around the inside of the second lid side protrusion.
The container according to claim 9, wherein the lid portion includes a second recess that is provided so that the second reinforcing member is substantially flush with an upper surface of the lid portion.

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