KR200479923Y1 - Soft-bag Container for Packaging Radioactive Waste Materials - Google Patents

Abstract

The present invention relates to a soft bag waste container for receiving, storing, transporting and transporting hazardous wastes including radioactive waste, comprising a bottom, an upper portion having an outer surface and an inner surface, and an opening for loading waste, Wherein the waste accommodating container is made of synthetic fibers including polypropylene and is made of synthetic fibers including a nonwoven fabric bonded to the outer covering at the bottom and a cover in which a cover is sewn together so as to be hinged to one side, And an end face on which a waterproof coating is formed on the outer side of the mesh reinforcing layer. The strip-attaching belts are arranged around the outer periphery of the container at a predetermined height in the vertical direction And the circumferential belt is provided with a plurality of Shell portion is formed, is equipped with a detachable belt strip to pass through the perforations, the upper and side edges of the outer covering of the waste container is to provide a soft back-radioactive waste container is a plurality of support means fixing the mounting ring mounted.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a soft-

The present invention relates to a radioactive waste packaging container, and more particularly, to a soft bag waste container for storing and disposing solid waste such as concrete, metal,

In particular, the present invention relates to a radioactive waste packaging container for safely storing and managing radioactive solid waste generated in the dismantling of a reactor until the construction and operation of a permanent disposal facility, and more particularly, to a radioactive waste container dismantling Level radioactive waste such as concrete and metallic wastes generated at the time of disposal is stored in a container such as a soft bag packaging container to increase the disposal amount of the waste and also to facilitate handling such as transportation and loading by being manufactured in a flexible bag form, BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a soft-bag radioactive waste container having a low manufacturing cost and capable of maintaining strength, radiation resistance and in-

The first nuclear power plant in Korea has been in operation since April 1978, exceeding the design life span and frequent breakdowns in the course of long use, public opinion for closure is getting hotter. However, considering the average operation period, Korea has also come to a close.

In addition, the first reactor in Korea, TRIGA Mark- 1 and TRIGA Mark-, started operation in 1962 and 1972, respectively, and helped to secure independence of domestic nuclear technology. However, due to the aging of facilities, There were many radioactive wastes generated during dismantling.

As such, over 40 years after the introduction of the nuclear power plant, the dismantling of old nuclear power plants began, and at the same time, the public opinion against nuclear power plants through Chernobyl, Fukushima, and other nuclear accidents, Since the waste generated is in an increasing tendency to be dismantled waste along with the operational waste, many kinds of waste wastes have been developed and disposal waste disposal containers have been developed overseas for many years.

Meanwhile, the radioactive waste generated during the dismantling of nuclear reactors is processed by applying the radioactive waste classification standard in accordance with the domestic nuclear energy regulations and international standards. The radioactive waste classification standard of the domestic nuclear energy regulations (Ministry of Commerce, Industry and Energy Notice No. 96-38, No. 98 -12), radioactive waste is classified into low-level waste and high-level waste. In decommissioning of nuclear reactors, spent fuel in reactors is treated according to separate standards. However, specific separate treatment standards for treating low-level radioactive waste Is not stipulated. In dismantling of nuclear reactors, the following standards are used in combination with Notification No. 98-12 and No. 96-38 of the Ministry of Science and Technology to perform the decommissioning work.

In other words, high-level wastes are radioactive wastes and spent nuclear fuels with a lead emission of more than 20 years and a concentration of 4,000 Bq / g or more and a heat generation rate of 2 kw /, and the intermediate wastes are all radioactive wastes, not high-level wastes and low- Bar and low-level radioactive waste are uniformly distributed, 3.7 kBq (0.0001 mCi) for radionuclides with an average A2 concentration of 0.05 Ci or less, 185 kBq (0.005 mCi) for radionuclides of which the average radioactivity per 1 g is below 0.05 Ci, A radioactive waste whose A2 value is not less than 1 Ci is not less than 11.1 MBq (0.3 mCi) and radioactive waste whose surface is contaminated by radioactive material, and the removable surface pollution determined by the Minister of Science and Technology does not exceed 10 times the standard value, Radioactive waste whose radioactivity of the contaminated object does not exceed the above concentration, even if the volume is minimized during transportation, For the case of a right or less contamination it is easily spread nor not the average value A2 contamination per square meter 0.05 Ci radionuclides 3.7 kBq /, other nuclides were classified respectively with a radioactive waste not exceeding 37 kBq /.

Meanwhile, since most of the low-level radioactive wastes generated in the nuclear reactor dismantling work are solid wastes such as concrete and metallic wastes, at least 90% of the low-level radioactive wastes are currently in the domestic market, Low-level radioactive solid wastes are stored in storage tanks and stored until the permanent treatment facility is constructed and operated.

Conventional storage containers known to be used for storage and storage of low-level radioactive solid waste generated in the dismantling of nuclear reactors as described above are disclosed in "Radioactive Waste Storage Container", published on Nov. 5, 2003 Korean Unexamined Patent Application Publication No. 2003-085191 has been developed by the Korea Atomic Energy Research Institute, which is capable of storing low-level radioactive solid waste generated in the disassembly of nuclear reactors in a container-type storage container to increase the storage capacity of waste, A plurality of body panels for facilitating container handling and for storing and managing a large amount of radioactive waste more safely, such as strength, radiation resistance, in-water water resistance and the like being maintained above a reference value; A column on which a corner casting is mounted on an upper side and a lower side; A plurality of channels extending and fixed to a lower portion of a base plate disposed below the body sub-panel, and a plurality of channels formed on the front, A roof panel connected to the front and rear square pipes of the body part, and a lid part having a roof door bolted and fixed to the side square pipe through a gasket, . However, such a design has a limitation in terms of radioactive and aerosol resistance because the container is expensive in the form of containers.

Japanese Patent Application Laid-Open No. 2005-315803, entitled " Container for Transporting Containers for Waste Transportation ", published by Japan Radio Isotope Association, discloses a low-level radioactive waste disposal container, And the side plate is reinforced by a vertical stiffener, the main body is reinforced by the horizontal stiffener and the band member, the lid is reinforced by the lattice type stiffener, the elastic packing is provided at the contact portion of the lid and the main body , A positioning member is provided at an inner bottom portion of the main body, a lid is fastened to the main body with a plurality of clamps, and the interior is lined with concrete. However, this is also a container type container made of concrete, which has a high manufacturing cost and has a limitation on radiation resistance.

As a prior art for containers for disposing low level radioactive wastes together with hazardous wastes containing chemical wastes, it is disclosed in Jun. 05, 2012 as "Containment used in disposal containers for commercial wastes U.S. Patent No. 8,191,722 entitled " Bag for use in Disposal Container ", which was devised by Pactec, Inc. of the United States and is intended for the storage and disposal of low level radioactive wastes such as concrete wastes generated from hazardous wastes and reactor disassembly A container having a liner, a plurality of rings arranged along the periphery thereof, and a sealing means such as a zipper which is sealable on both sides of the upper opening, wherein the collar or handle comprises a container for transportation, Stutter truck, etc. and performs the function of supporting during waste filling, It is known to be configured to perform the action that it supports when moving. However, this design is a waste container for loading and dismounting in a large transportation container such as a dumster truck, and the manufacturing cost is high, and there is a limitation in ease of handling and transportation.

U.S. Pat. No. 7,073,667 issued to Pactec, Inc., entitled "Containment Bag for Use in Disposal Container," which was registered on July 11, 2006, Which comprises a bag for receiving waste and a bag for use in combination with a dumbest container container, the bag comprising a series of straps for sealing and sealing the plurality of rings provided on the upper side of the dumbstall container, Fig. This configuration can prevent flapping of the bag top when transporting the waste after storage in the bag. However, since it corresponds to a bag container used in combination with a dumbster container in the design thereof, it is disclosed that the manufacturing cost is high, the convenience of handling and transportation is limited, and the liner is provided therein. However, There is a limitation in terms of total manufacturing cost, radiation resistance, and strength of the container material.

In addition, U.S. Patent No. 7,074,174, entitled " Apparatus for Encapsulating Hazardous Debris ", which was registered on July 11, 2006 and which was issued by Heritage Incorporation Enironment Services LLC, which includes the use of liners with agents to reduce the invasiveness of hazardous material components to accept hazardous materials in transport and disposal to remove hazardous materials, and liner Prior to placement of the toxic material on the liner, the formulation is applied to the bottom of the liner, supported on a roll-off box or other transport container, filled with a flowing reagent in the free space around the hazardous material A technique in which the liner is sealed later is disclosed, which also comprises an inner layer, an intermediate layer, and an outer layer, In which a support strap is attached and the upper portion is sealed with two closure flaps, and the bottom circumference is treated with a seam and the zipper means is attached to the upper portion. However, in the technology of the present invention, there is a problem that the container for accommodating the waste is suitable for small particles such as chemical waste, but there is a limitation in the treatment of heavy and sharp-edged waste such as concrete or metal.

Patent Document 1: Korean Patent Publication No. 2003-085191 Patent Document 2: Japanese Patent Application Laid-Open No. 2005-315803 Patent Document 3: U.S. Patent No. 8,191,722 Patent Document 4: U.S. Patent No. 7,073,676 Patent Document 5: U.S. Patent No. 7,074,174

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The main object of the present invention is to provide a soft-backed radioactive waste storage container having enhanced water resistance and impact resistance.

It is a further object of the present invention to provide a soft-bag radioactive waste storage container that improves workability in loading waste into a storage container.

Another object of the present invention is to provide a soft-bag radioactive waste storage vessel with a detachable fastening belt.

Another object of the present invention is to provide a soft-backed radioactive waste storage container with improved workability.

To achieve the above object, according to a preferred embodiment of the present invention, there is provided a bag type flexible receiving container for receiving, storing, transporting and transporting hazardous wastes including radioactive waste, wherein a bottom, an outer surface and an inner surface, Wherein the waste containment vessel comprises a shell made of synthetic fibers including polypropylene and having a zipper for sewing a rectangular shaped cover to be hinged to one side and sealing the top, An inner skin comprising a mesh reinforcing layer formed on the outer surface of the nonwoven fabric to reinforce strength and preventing puncturing and a waterproof coating on the outer surface opposite to the inner skin, The belt-mounting strips are spaced at a predetermined height in the vertical direction around the outer periphery And the strips are formed with a plurality of spaces so as to allow the belt to pass between the upper and lower edges of the waste container, There is provided a soft bag radioactive waste container characterized in that a plurality of supporting means mounting fixing rings are mounted at predetermined intervals.

According to the present invention described above, it is possible to provide a radioactive waste storage container having enhanced waterproofness and impact resistance, to provide a waste storage container improved in workability at the time of inserting waste into a storage container, An effect of providing a waste storage container can be achieved.

In the following, the present invention will be described in more detail with reference to the accompanying drawings, which show a preferred embodiment, wherein:
FIG. 1 is a perspective view of a soft-bag radioactive waste container for storing radioactive waste transported with a strip belt according to the present invention,
Fig. 2 is a view showing a state in which the inner skin constituting the container shown in Fig. 1 is unfolded,
Fig. 3 is a view showing an arrangement state of an inner skin, an outer skin and a waterproof member constituting the container shown in Fig. 1,
Fig. 4 is a cross-sectional view of the portion A in Fig. 3,
FIG. 5 is a view showing an example of the use of a support means used when a waste container is stored in a soft bag container using the container shown in FIG. 1;

The present invention will now be described in detail with reference to the accompanying drawings, which show preferred embodiments of the present invention.

As shown in Figs. 1 and 4, the soft-back storage container for radioactive waste storage according to the present invention includes a shell 10 and an inner skin 20 in a bag or box shape similar to a cube. The waterproofing member 30 can be attached to the inside of the inner skin 20. [ The combination of the inner film 20 and the waterproofing member 30 and the outer skin 10 can be combined at the bottom or side edge by adhesive bonding, stitching, and sewing. The filling weight of the soft bag 100 according to the present invention is about 1500 kg.

The envelope 10 is fabricated from a fabric such as woven polypropylene synthetic fibers, the size of which is 100x100x100 cm in one embodiment, but is not limited thereto. In addition, the endothelium 20 is made of PE / PTFE (polytetrafluoroethylene) film or nonwoven, and the size is, in one embodiment, 100x100x100 cm, but is not limited thereto. As shown in FIG. 4, a mesh reinforcing layer 210 is formed on the outermost side of the inner layer 20 to prevent the inner layer from being torn and not punctured, and the outer layer 10 of the inner layer 20, A vinyl coating layer 220 is formed.

The waterproofing member 30, which is selectively mounted inside the inner film 20, is made of a polyethylene film and in one embodiment has a depth of 240 cm and an upper aperture radius of 460 cm. In the present embodiment, an inner cover (not shown) can be mounted on the waterproof member 30 near the opening of the envelope 10, the inner cover is made of polypropylene fabric, the size is 140 cm long and the opening diameter is 460 cm to be. The waterproofing member 30 or the inner cover may be sealed by snaps, ties, clips, or may be provided with a sealing means such as a zipper or a Velcro fitting structure.

The mesh reinforcement layer 210 has a thickness of 0.005 to 0.05 mm and is in the form of a net made of synthetic fibers or in the form of a metal fiber sheet selected from a polymer outer cover, a foil, a paper outer cover, a fiber glass reinforcement mat, Can be adhered to the surface of the nonwoven fabric (200). The thickness of the nonwoven fabric can be reduced to about 0.0375 to 0.45 mm in the case of the present invention, compared with a thickness of about 0.38 to 0.5 mm when the nonwoven fabric is formed only by the nonwoven fabric, thereby reducing the overall thickness by about 20%. However, experiments have shown that resistance to perforation or tearing has improved by more than 20% and has eliminated tearing or puncturing of concrete or metal waste.

Preferably, the mesh reinforcing layer 210 is in the form of a net made of synthetic fibers or in the form of a metal fiber sheet selected from polymeric sheathing, foil, paper-type sheathing, and fiberglass reinforcing mat. EVA (ester vinyl acetate) , A layer of highly-packed material around the reinforced web, and mixtures thereof.

This allows the endothelium 20 to better absorb the impact and prevent tearing or puncture when the soft bag container 100 is to receive the disposal waste such as concrete waste. The total thickness of the inner layer is about 0.0375 to 0.45 mm, and the outer layer 10 is about 0.076 to 0.127 mm thick.

1, a cover 40 made of the same material as that of the outer skin 10 is sewn on the upper portion of the outer surface of the soft bag waste container 100 according to the present embodiment so as to be hinged to one side, The cover 40 is configured to be sealed as a zipper 50 to seal the bag container 100 after fully filling the waste container with the integral zipper 50 mounted inside the edge of each side.

On the other hand, when charging the waste, the inner skin 20 is formed so that the peripheral length of the soft bag container is sufficiently larger than the peripheral length of the upper outer skin so that the inner skin 20 can be folded over the outer skin 10 The inner sheet 20 is attached to the outer surface 10 of the outer sheet 10 during the waste loading operation by minimizing unnecessary portions and sewing the inner sheet 20 in a zigzag fashion by adjoining the upper portion of the outer sheet 10 below the cover 40. [ So that the work efficiency can be improved.

As shown in Fig. 1, belts 60, 60 extending in the circumferential direction at appropriate positions in the vertical direction of the jacket 10 of the soft bag container 100 (for example, at 1/3 positions in the vertical direction from the top and bottom) 65b, 65c, 65d for fixing the strip belts 70, 75 extending in the up-and-down direction are formed so as to form the space portions 60a, 60b, 60c, 60d . The strip belts 70 and 75 are configured to extend the envelope 10 of the bag container 100 in the vertical direction to bind the bag container 100 and form a loop that provides convenience in transportation after completion of charging, And the lower end is configured to be detachable by attaching a carabiner type fastening means, and it is preferable that the strip belts 70 and 75 are removed and reused before the embedding is completed after the completion of the transfer. These belts and strips are made of high-strength PET and have a width of about 50 cm and a thickness of 2T.

In this embodiment, as shown in FIG. 1, soft bag fixing rings 80a and 80b are provided at predetermined positions of the respective edges along the upper edge of the soft bag receiving container 100. The soft bag retention hooks comprise a shell 10 that can engage a support rod for supporting the upper edge of the shell 10 to keep the upper opening of the soft bag vessel 100 open to allow waste to be loaded, It is also possible to provide a fixed hook in a through hole (not shown) and to hold the outer edge of the soft bag so as not to be caught by attaching the hook to the support bar. And a punching hole (not shown) through which the support rod can be inserted. It is also possible to arrange a plurality of fixing rings 80b at predetermined intervals on the upper edge of the outer casing 10 and to provide a support rod on the outer ring 10 to keep the upper opening of the soft bag open.

Next, the supporting means for holding the inlet of the soft bag container 100 in the unfolded state will be described. As shown in FIG. 4, the radioactive solid waste including the concrete waste generated in the dismantling of the reactor is charged into the soft bag 100 5b and 5c are installed in the container 100 through the fixing rings 80a and 80b mounted on the upper edge of the container casing 10 in order to store and transport the soft bag 100, Are pulled up and down, back and forth, and left and right.

At this time, the supporting bar used is composed of a supporting bar 5a extending in the vertical direction, a supporting bar 5b extending in the width direction and a supporting bar 5c extending in the longitudinal direction, and the supporting bar 5a extending in the vertical direction And a base portion at a lower portion. The support rods 5a-5c may have a circular or hexagonal cross section, and may be formed of other types of polygons. Preferably, the support rods 5a-5c are made of aluminum or steel, and may be made of reinforced plastic.

A waste treatment method for charging and transporting waste in the soft bag waste container using the support means (5a, 5b, 5c) having the above structure will be described as follows.

5b and 5c are attached to the fixing rings 80a and 80b attached to the upper and the lateral edges of the shell 10 of the soft bag waste container to prevent the waste container 100 from being sagged The upper portion is tightly opened and the shape similar to the cube of the container is maintained. In this state, the cover 40 hinged to one side of the envelope 10 is kept open by the zipper 50 being folded backward.

In this state, the endothelium 20 is bent outward to cover the envelope 10 as shown in FIG. 2, so that the waste can be loaded into the endothelium 20. At this time, the inner skin 20 is configured to be folded to the outer side of the outer skin 10 sufficiently by constructing the inner skin 20 so that its diameter becomes about 120% of the diagonal line of the outer skin 10 as shown in FIG. On the other hand, when the waterproofing member 30 made of synthetic resin such as polyethylene or vinyl resin is provided inside the inner skin 20, the waterproofing member 30 is also configured to be folded so as to cover the outer skin 10.

Next, the radioactive waste such as concrete and metal waste is charged into the soft bag container in a state where the inner skin 20 and / or the waterproof member 30 is held on the outer surface 10 of the waste receptacle container by being bent as described above Fill it.

Next, when the waste is sufficiently charged in the inner skin 20 and / or the waterproofing member 30, the upper end portion thereof is bundled as a cord or a tie.

Next, the cover 40 mounted on the outer skin 10 provided on the outer side of the inner skin 20 is closed, and the opening of the container is sealed with the zipper 50 to achieve the sealing of the waste.

Subsequently, through the penetration portions 60a, 60b, 60c, 60d; 65a, 65b, 65c, 65d of the belts 60, 65 mounted in the circumferential direction of the soft bag waste container 100, (70, 75) to bind the waste container (100) and to ensure the convenience of transportation after completion of charging. At this time, the strip belts 70 and 75 used can be removed and reused before being buried after completion of the transfer. The number of strip belts can be increased or decreased depending on the type and weight of the waste charged in the container.

The soft bag waste container thus completed is transported to a storage place or a landfill site using an appropriate transportation means.

As described above, although the present invention has been described with reference to specific embodiments and drawings, it is to be understood that the present invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

5a: Support, 5b, 5c: Support,
10: envelope, 20: endothelium,
30: waterproof member, 40: cover,
50: zipper, 60, 65: circumferential belt,
60a, 60b, 60c, 60d; 65a, 65b, 65c, 65d: penetration portion,
70, 75: Strip belt, 80: Retaining ring

Claims (3)

A bag-type soft-bag radioactive waste container (100) for receiving, storing, transporting and transporting hazardous waste including radioactive waste, comprising a bottom, an upper portion having an outer surface and an inner surface,
The waste container comprises a casing 10 made of synthetic fibers including polypropylene and having a zipper 50 for sewing a rectangular shaped cover 40 hinged to a side and hermetically sealing the upper portion, A mesh reinforcement layer 210 is formed on the outer surface of the nonwoven fabric to reinforce strength and prevent tearing or perforation. A waterproof coating 220 is formed on the outer surface of the mesh reinforcement layer 210, (20)
The strip-mounting circumferential belts (60, 65) are mounted around the outer circumference of the container (10) at a predetermined height in the vertical direction, and a plurality of through- (60a-60d; 65a-65d) are formed, and removable vertical strip belts (70, 75) for carrying the waste containers in the vertical direction through the penetrating sections are mounted,
Characterized in that a plurality of supporting means mounting fixing rings (80a, 80b) are mounted at predetermined intervals on the top and side edges of the casing (10) of the waste container so as to keep the opening of the container open. Radioactive waste containers. The soft bag radioactive waste container according to claim 1, further comprising a waterproofing member (30) made of polyethylene inside the inner skin (20). The method of claim 1 or 2, wherein the mesh reinforcing layer (210) has a thickness of 0.005 to 0.05 mm, and the mesh reinforcing layer (210) has a mesh form of synthetic fibers or a metal fiber selected from a polymer outer cover, a foil, a paper outer cover, Characterized in that the soft bag waste Vessel.

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