JPS5939680Y2 - Packaging for sealed removal of radioactive materials - Google Patents

Description

[Detailed description of the invention] This invention relates to a sealed package for taking out radioactive substances.

Radioactive substances, especially alpha-ray emitting substances such as plutonium, are extremely dangerous if absorbed by the human body, and when removing contaminated substances containing these radioactive substances, packaging made of synthetic resin such as vinyl has traditionally been used to prevent contamination from spreading. The body has been used.

However, in the past, as shown in Fig.
After storing the contaminants inside the package 2, the contaminants are welded at appropriate locations using a high-frequency welder and the welded surfaces 3 and 3' are cut to seal the contaminants inside the package 2 and take them out. The welding surfaces 3, 3' to be welded by the welder were already contaminated by the passage of the contaminant 1 before welding, and there was a risk that the contaminated surfaces would be exposed by cutting the welding surfaces.

Furthermore, since welding is normally performed by applying negative pressure to the inside of the package 2, the welded parts 3, 3' are sucked under negative pressure during welding, and pinholes are likely to be formed, resulting in a lack of reliability.

Furthermore, since a high-frequency welder is used for welding, there is a limitation in terms of space, and there is a drawback that it is not possible to freely encapsulate contaminants into the package 2 where necessary.

In view of the above-mentioned conventional drawbacks regarding the sealed removal of radioactive materials, the present inventor has developed a package that can easily, reliably, and safely perform sealed removal of radioactive materials without using special equipment such as a high-frequency welder. However, this is what is proposed here as the present invention.

The structure of the invention will be explained below based on an embodiment of the invention shown in the drawings.

Fig. 2 is a perspective view of the first embodiment of this invention, and Fig. 3 is a perspective view of the first embodiment of the invention.
It is a sectional view taken along the line AA in the figure.

In the figure, reference numeral 2 denotes a bottomed cylindrical package body made of synthetic resin and having an opening 4 at one end.

An adhesive material band 5 is provided in an annular shape along the wall surface on the inner circumferential wall near the opening 4 of the package main body 2, and a release paper 6 in the form of a similar strip is disposed on the adhesive material band 5. is provided.

The release paper 6 is made of a material such as paraffin paper 12 or a synthetic resin sheet that can be easily peeled off from the adhesive material band 5 and does not cause deterioration of the adhesive material, and is longer than the adhesive material band 5. After superimposing it on the adhesive material band 5 in a band shape, the remaining part is folded back and projected inside the main body to form a projecting piece 7, and a knob side thread ring 8 is connected to this projecting piece 7.

A glove body 10, 10 for internal operation is provided at a suitable position between the adhesive material strip 5 and the bottom 9, and projects inwardly.

This first embodiment has a diagonal-like configuration,
The radioactive contaminant 1 is accommodated through the opening 4, the hand is passed through the operating glove body 10.10 from the outside, the knob side thread ring 8 is pulled, and the release paper 6 is removed from the adhesive material band 5.
is peeled off to expose the adhesive material, the adhesive material bands 5 are brought into close contact with each other as shown in FIG. 4, and then the package 2 is sealed by cutting the middle of this adhesive part. be.

At this time, the release paper 6 is adhered to the adhesive material band 5, and during the peeling operation, the adhesive material band in the part that is being peeled off is pulled in the direction in which the release paper 6 is peeled off due to the viscosity of the adhesive material. As soon as the opposing release papers 6 are peeled off, the opposing parts successively come into close contact with each other, so that complete sealing can be achieved just by peeling them off.

Further, the release paper 6 contaminated by the passage of the contaminant 1 is sealed inside the package together with the contaminant 1 and is not exposed to the outside.

However, in this first embodiment, the package main body 2 has a bottomed cylindrical shape with an opening 4 at only one end, and since there is only one opening 4, it can be easily attached only by pasting this part. The package can be sealed.

Next, FIG. 5 shows a second embodiment of the packaging body according to this invention. Two sets of gloves 6 are provided at a predetermined interval, and the internal operation glove body 10.10 is located in the middle.

In this second embodiment, the radioactive contaminant 1 is placed in the package 2.
After being stored inside the container, the adhesive material strips 5.5 on both sides are adhered to each other in the same manner as in the first embodiment, and the material is sealed and removed. However, unlike in the first embodiment, Since there are openings 4° 4 on both sides of the package main body 20, radioactive contaminants can be introduced from either side of the openings, resulting in good workability.

This device has a structure similar to that of a diagonal top, and can easily and reliably seal radioactive contaminants without using special equipment such as a high-frequency welder. Since it is covered with release paper in the moment 1, there is no possibility of contamination, and unlike conventional products, the risk of contamination of the welded part can be prevented, and radioactive contaminants can be safely and reliably sealed. It has excellent effects.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a conventional radioactive substance sealing package, Fig. 2 is a perspective view of the first embodiment of the radioactive substance sealing package according to the present invention, and Fig. A-
4 is a longitudinal sectional view showing the bonded state, and FIG. 5 is a perspective view of the second embodiment. 1... Contaminants, 2. P...packaging body, 3,3'...
・Welding surface, 4... Opening, 5... Adhesive material band, 6.
...Release paper, 7.Protruding piece, 8.Thread ring, 9.
... Bottom, 10.10 ... Glove body for internal operation.

Claims (1)

[Scope of utility model registration request] A pasting material band 5 is provided on the inner circumferential wall near the opening 4 of the cylindrical synthetic resin packaging main body 2 so as to surround this, and a band-shaped release paper 6 having a protruding piece 7 at one end is placed on top of the band 5. are superimposed on each other, and a glove body 10.10 for internal operation is attached to the central peripheral wall of the main body 2.
A sealed package for taking out radioactive substances, characterized in that it is provided with: