JP3176278U - Contaminant storage container and hangar of the storage container - Google Patents

Abstract

【wrap up】
[Problem] An object of the present invention is to provide a pollutant storage container that is easy to store and transport, can be quickly taken out and transported, and has excellent stability in a temporary storage state, and a storage structure for the container.
The bottom plate portion and the side plate portion are integrally formed seamlessly. The container main body has an opening in the upper portion. The leg portions are provided at the four corners of the bottom surface of the bottom plate portion. And a box-type contaminant storage container configured to be fixed to the opening with a bolt 10 via a packing 12.
[Selection] Figure 2

Description

  The present invention relates to a pollutant storage container for storing harmful substances such as radioactive pollutants, and a hangar for storing a large number of these contaminant storage containers.

  If a radioactive pollutant is temporarily placed in a place, it must be stored as quickly and efficiently as possible. In that case, radioactive contaminants packed in a ton pack, which is a large sandbag, were stored in a storage container to be transported in a storage container so as to have a certain low radiation dose, and then assembled in the site in advance. By storing in a place surrounded by a partition wall or the like, it can be considered that the radioactivity is continuously and mechanically cut off from the human body. This is also true when moving from the temporary storage site to the disposal site again, and the structure needs to be able to quickly store and transport radioactive contaminants.

  As a structure for temporarily storing radioactive material-containing soil, for example, in Utility Model Registration No. 3171406, a soil layer in which radioactive material-containing soil is accumulated, a peripheral wall composed of a plurality of precast retaining walls, a lower surface of the soil layer, Temporary radioactive contaminants that are structured to be surrounded by a water shielding layer formed along the side surface and the top surface and a radiation shield covering the water shielding layer formed along the top surface of the soil layer. The storage structure is described.

Utility Model Registration No. 3171046

  However, in the temporary storage structure described in Utility Model Registration No. 3171046, since the radiation shield is covered on the upper surface of the radioactive substance-containing soil, it takes time to store. In addition, since it takes a lot of time to carry the temporarily stored radioactive material-containing soil to the final disposal site, it is not efficient. Furthermore, if the above work requires a lot of time, the health of the worker may be impaired.

  In order to overcome the above-mentioned problems, the present invention is easy to store and transport, can be quickly taken out and transported, and has a contaminant storage container excellent in stability in a temporarily placed state and a hangar for this storage container. The issue is to provide.

  According to the first aspect of the present invention for solving the above problem, a pollutant comprising a precast concrete box-type container body having an opening on the upper side and a precast concrete lid that closes the opening. The container body has a rectangular bottom plate portion and side plate portions standing upright from its four sides, which are integrally formed seamlessly, and have leg portions at the four corners of the bottom surface of the bottom plate portion. Inserts are embedded in the four corners of the upper surface of the opening of the container body, and through holes for inserting bolts are provided in the four corners of the lid, and are inserted into the through holes from above the lid. The lid is fixed to the opening of the container body by screwing the inserted bolt into the insert and tightening.

  Further, in order to solve the above-mentioned problem, in the present invention according to claim 2, fitting recesses that engage with lower ends of the legs of the pollutant storage container that are stacked above are provided at the four corners of the upper surface of the lid. It is characterized by being. And in this invention of Claim 3, the cyclic | annular packing along the opening part was installed in the opening part upper surface of the said container main body, It is characterized by the above-mentioned.

  Furthermore, in order to solve the above-mentioned problem, the present invention according to claim 4 is characterized in that a hook for suspending the lid or the contaminant container is provided on the upper surface of the lid. The invention according to claim 5 is characterized in that a suspension anchor for the container body is embedded in the upper surface of the opening of the container body.

  The invention described in claims 6 to 8 relates to a hangar for storing the pollutant storage container described in claims 1 to 5. In the invention described in claim 6, the L-shaped precast concrete is used. A plurality of retaining wall members are arranged, and a side wall constituting part forming a rectangular internal space in a plan view at the standing part and a part of the bottom wall of the internal space made of cast-in-place concrete or precast plate are formed. 6. A hangar for storing the pollutant storage containers according to claim 1 or 5 stacked in one or more stages, comprising a bottom wall constituent part and a top plate constituent part comprising a plurality of precast plates that close the upper opening of the internal space. And the fitting recessed part which the leg part lower end of the said contaminant storage container fits in the upper surface of the said bottom wall structure part and the horizontal part upper surface of the said retaining wall member is characterized by the above-mentioned.

  According to the seventh aspect of the present invention, when both end portions of the top plate constituting portion arranged side by side are placed on the upper surface of the opposing standing portion of the side wall constituting portion and horizontally mounted, Further, the top plate component is fixed to the upper surface of the upright portion at both ends thereof, and the upper opening of the hangar is closed with the top plate component. And, in the device according to claim 8, the top plate constituent portion formed on the top surface of the upright portion is fixed to the upper surface of the upright portion of the side wall constituent portion at both ends of the top plate constituent portion. Each of both end portions of the step plate, an insert embedded in a horizontal portion of the step portion, and a through-hole for inserting bolts formed at both end portions of the top plate constituting portion. A bolt inserted from above the top plate component into the hole is screwed into the insert and tightened. Only wherein the structure and the be fixed.

  In the pollutant storage container according to claims 1 to 5 of the present invention, one or a plurality of large sandbags or the like packed with radioactive pollutants can be packed and easily fixed to the container body. Since it can be transported with the lid closed, storage and transport can proceed very quickly.

  Further, in the pollutant storage container according to claim 2 of the present invention, the recesses that engage with the lower ends of the legs of the pollutant storage container are provided at the four corners of the upper surface of the lid. In addition to being easy to stack the pollutant storage containers, they are stable and not easily collapse even if there is an earthquake.

  Further, in the pollutant storage container according to claim 3 of the present invention, since the annular packing along the opening is provided on the upper surface of the opening, the sealing property between the container main body and the lid is improved and radiation is increased. In addition to being able to reduce the amount of leakage from the opening, it is possible to reliably prevent leakage of the contaminant even if the contaminant storage container is toppled.

  Further, in the pollutant storage container according to claims 4 and 5 of the present invention, when the heavy lid is lifted and installed in the opening of the container body, or the contaminant is stored in the container body and the opening When a container closed with a lid is transported / moved, and further, when a container body is transported / moved, it can be easily handled by installing a hanging metal fitting on a suspension anchor embedded therein.

  And the hangar of the pollutant storage container according to claim 6 of the present invention is a retaining wall constituent part composed of a plurality of retaining wall members made of precast concrete having an L-shaped cross section, and an internal space surrounded by the retaining wall constituent part. A bottom wall constituting portion that forms a bottom wall of the inner space and a top plate constituting portion that includes a plurality of top plates that close the upper opening of the internal space, and the top surface of the bottom wall constituting portion and the horizontal of the retaining wall member Since the fitting recessed part which the leg part lower end of the said contaminant storage container fits is formed in the part upper surface, the said container can be stored in the stable state.

  Moreover, since the said hangar only forms L-shaped retaining wall members etc. side by side, it is easy to assemble and disassemble. Furthermore, since it is easy to install the top plate constituent part mounted on the top of the standing part of the retaining wall constituent part, it is possible to provide a hangar of the contaminant storage container that can be constructed very quickly by the prefabricated method. There are various effects.

1 is an overall perspective view of a contaminant storage container according to the present invention. It is a half longitudinal section of the contaminant storage container. It is an expanded partial sectional view of the contaminant storage container. It is the disassembled perspective view which abbreviate | omitted a part of the contaminant storage container. It is a whole perspective view of the storage which concerns on this invention, and is a figure which stores the said contaminant storage container and abbreviate | omits and shows a part of top plate structure part. It is a cross-sectional enlarged partial view of FIG. It is an expanded sectional fragmentary view of the A section of FIG. It is an expanded sectional fragmentary view of the B section of FIG. It is a perspective view of each component of the hangar which concerns on this invention.

  Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. In the figure, reference numeral 1 denotes a pollutant storage container according to the present invention, which is a precast concrete box-type container body 3 having an opening 2 above and a lid made of a concrete precast plate that closes the opening 2. 7.

  The container body 3 has a rectangular bottom plate portion 4 and a side plate portion 5 rising vertically from its four sides, which are integrally formed with a seam, and leg portions 6 are formed at the four corners of the bottom surface of the bottom plate portion 4. It protrudes downward. 8 is an insert embedded in the upper four corners of the opening 2 in the container body 3, and bolts 10 are inserted into the through holes 9 provided in the four corners of the lid body 7 from above the lid body 7. Then, the lid 7 is fixed to the opening 2 of the container body 3 and closed by screwing the insert 8 and tightening it.

  11 is a recess provided on the upper surface of the lid body 7 at its four corners, and is formed in an upper part continuous with the upper opening edge of the through hole 9. The container body 3 is placed on the contaminant storage container 1. Alternatively, when the pollutant storage container 1 is further stacked, the lower end of the leg portion 6 is fitted into the recess 11 for positioning. A packing 12 is provided on the upper surface of the opening 2 of the container body 3 and is installed in a groove 13 formed in an annular shape along the opening 2.

  Reference numeral 14 denotes a hanging hook provided on the upper surface of the lid body 7, which is used when the lid body 7 is lifted alone or when the entire contaminant storage container 1 is lifted by a crane or the like, and 15 is the container body 3 This is an anchor embedded in the upper surface of the side plate portion 5 in order to mount a hook for suspension (not shown) used when lifting the crane alone with a crane or the like.

Reference numeral 16 denotes a hangar for storing the pollutant storage container 1, and a plurality of L-shaped retaining wall members 17-1 made of precast concrete are arranged, and the standing portion 17A has a rectangular interior in a plan view. an outer wall forming portion 18 - 1 to form a space S, a bottom wall component to form the internal space S ₁ of the bottom wall made of the retaining wall member 17 over the first horizontal portion 17B and poured concrete or precast plate 17C 19 and a top plate constituting portion 21 composed of a plurality of precast plates 21A for closing the upper opening 20 of the closed internal space S, and the horizontal portion 17B of the retaining wall member 17-1 and the work site A fitting recess 22 into which the lower end of the leg portion 6 of the container body 3 is fitted is formed on the upper surface of the bottom wall constituting portion 19 made of cast concrete or precast plate 17C.

  23 is a locking step formed on the upper surface of the outer wall constituting portion 18-1, and a plurality of L-shaped retaining wall members 17-1 for forming the outer wall are arranged to form the outer wall constituting portion 18-1. In this case, as shown in FIG. 7, the locking step 23 is formed only on the side facing the internal space S, and as shown in FIG. In the case where the inner wall constituting portion 18-2 is formed by arranging a plurality of retaining wall members 17-2, the locking step 23 is disposed on both sides of the projecting portion 23A on both sides facing the internal space S. Are formed respectively.

The top plate constituting portion 21 is connected to the engaging step portion 23 of the outer wall constituting portion 18-1 for forming the outer wall and the engaging step portions 23, 23 of the inner wall forming portion 18-2 for forming the inner wall. Both end portions 21B and 21B are placed and positioned by bringing their tips into contact with the protruding portions 23A of the locking step portion 23, and the top plate constituting portion 21 is placed on the outer wall constituting portion 18-. 1 and that occupy hank lateral straddling between the inner wall structure 18 over 2 and the inner wall structure 18 over 2 and the outer wall structure 18 over 1, the interior space S (S _1, S ₂₎ The upper opening 20 is closed.

  Reference numeral 24 denotes an insert embedded in the horizontal portion of the locking step portion 23 of the inner and outer wall constituting portions 18-1 and 18-2, and a through hole formed in the end portion 21B of the top plate constituting portion 21 The top plate constituting portion 21 is fixed to the upper opening 20 of the hangar 16 by screwing the bolt 26 inserted from above into the screw 25 and tightening the bolt 26.

  Next, a method of storing the pollutant contaminated with radioactivity or the like in the pollutant storage container 1 according to the present invention will be described. First, the ton pack T containing the pollutant is lifted using a crane or the like, and the ton pack T is put into the container body 3 from the opening 2. Next, the lid body 7 is lifted via the hanging hook 14 using a forklift or a crane, and placed on the upper surface of the opening 2 of the container body 3. At this time, the upper surface of the opening 2 of the container main body 3 and the lower surface of the lid 7 are placed in close contact via the packing 12 embedded in the upper surface of the opening 2 of the container main body 3.

  Thereafter, the through hole 9 of the lid body 7 and the insert 8 embedded in the opening 2 of the container body 3 are matched, and the bolt 10 is inserted from above the lid body 7 through the anchor plate 27, and the insert 8 The lid 7 is fixed in close contact with the opening 2 of the container body 3 by screwing and tightening. And this contaminant storage container 1 is conveyed to the hangar 16 constructed | assembled in the temporary storage place with the forklift or the crane.

On the other hand, the hangar 16 has a predetermined interval from the first and third rows and the first and third rows in which a plurality of retaining wall members 17-1 for forming the outer wall are arranged to form the outer wall constituting portion 18-1. The inner wall constituting portion 18-2 in the second row formed by arranging a plurality of retaining wall members 17-2 for forming the inner wall arranged in the middle, and both ends of the two parallel inner spaces S ₁ and S ₂ If outer wall constituent portions 18-3 and 18-3 formed by arranging a plurality of L-shaped retaining wall members 17-1 for forming the outer wall arranged so as to close the openings in a direction opposite to the above are provided. Further, the upper opening 20 of the rectangular structure surrounded on the four sides by the outer wall constituting portions 18-1 and 18-1 is closed by the top plate constituting portion 21.

  The upper opening portion 20 of the rectangular structure that is surrounded on the four sides by the outer wall constituting portions 18-1 and 18-3 and further partitioned by the inner wall constituting portion 18-2 is closed by the top plate constituting portion 21. At this time, both end portions 21A and 21A of the top plate forming portion 21 are placed on the locking step portions 23 and 23 of the opposing outer wall forming portion 18-1 and inner wall forming portion 18-2, respectively. Then, the tip is brought into contact with the protrusion 23A of the locking step 23 to position the top plate component 21 between the outer wall component 18-1 and the inner wall component 18-2. The upper opening 20 of the internal space S is closed by being horizontally laid across.

If the hangar 16 has a relatively large height of 2500 mm or more, the outer wall forming L disposed so as to close both end openings of the two parallel internal spaces S ₁ and S _2. One of the mold retaining wall members 17-3 is removed to form an inlet, and the pollutant storage container 1 enters the inner space S from the inlet while being lifted by a forklift inserted between the legs 6 and 6, and the bottom wall The pollutant storage container 1 is lowered with the legs 6 fitted into the fitting recesses 22 formed on the upper surface of the component 19 and the upper surface of the horizontal portion 17B of the L-shaped retaining wall member 17-1.

  Alternatively, another contaminant storage container 1 is placed on the contaminant storage container 1, and the second-stage contaminant storage is stored in the recesses 11 formed on the upper surfaces of the four corners of the lid 7 of the first-stage contaminant storage container 1. By storing the container 6 in a state where the legs 6 of the container 1 are engaged with each other in a two-tiered manner, the contaminant storage container 1 storing the contaminant is stably stored in the storage 16.

DESCRIPTION OF SYMBOLS 1 Contaminant container 2 Opening part 3 Container body 4 Bottom plate part 5 Side plate part 6 Leg part 7 Lid body 8 Insert 9 Through-hole 10 Bolt 11 Recess 12 Packing 13 Concave groove 14 Hanging hook 15 Anchor 16 Storage 17-1 Formation of outer wall L-type retaining wall member 17-2 L-shaped retaining wall member for inner wall formation 17A Standing portion 17B Horizontal portion 18-1 Outer side wall constituent portion 18-2 Inner side wall constituent portion 19 Bottom wall constituent portion 20 Upper opening portion 21 Top plate component 21B End 22 Fitting recess 23 Locking step 23A Projection 24 Insert 25 Through hole 26 Bolt 27 Anchor plate 28 Bolt

Claims (8)

  A precast concrete box-type container body having an opening on the upper side, and a pollutant storage container comprising a precast concrete plate-shaped lid that closes the opening, the container body having a rectangular bottom plate portion and its container While the side plate portions standing from the four sides are integrally formed with no seam, the bottom plate portion is provided with legs at the lower four corners, and the upper four corners of the opening are embedded with inserts, Through holes for inserting bolts are provided at the four corners of the lid, and the bolts inserted into the through holes from above the lid are screwed into the inserts and tightened to tighten the lid to the container. A contaminant storage container characterized by being configured to be fixed to the opening of the main body.   The pollutant storage container according to claim 1, wherein concave portions that engage with lower ends of legs of the pollutant storage container stacked on top are provided at four corners of the upper surface of the lid.   The pollutant storage container according to claim 1 or 2, further comprising a packing disposed in an annular shape along the opening on the upper surface of the opening of the container main body.   4. The contaminant storage container according to claim 1, wherein a hook for suspending the cover or the contaminant storage container is provided on an upper surface of the cover body.   The pollutant storage container according to any one of claims 1 to 4, wherein a suspension anchor for the container body is embedded in the upper surface of the opening of the container body.   A plurality of L-shaped retaining wall members made of precast concrete are arranged, a side wall constituting part forming a closed internal space having a rectangular shape in plan view at the standing part, and the internal space made of cast-in-place concrete or precast plate 6. The pollutant storage container according to claim 1, comprising a bottom wall constituent part forming a part of the bottom wall and a top plate constituent part comprising a plurality of precast plates for closing the upper opening of the internal space. Or, a hangar for stacking and storing a plurality of tiers, wherein a fitting recess is formed on the upper surface of the bottom wall constituting portion and the horizontal portion upper surface of the retaining wall member to fit the lower end of the leg of the contaminant storage container. A pollutant storage container hangar.   On the upper surface of the upright portion facing the side wall component, a plurality of the top plate components arranged side by side are respectively placed and horizontally mounted. The hangar of the pollutant storage container according to claim 6, wherein the upper opening of the hangar is closed by the top plate component by being fixed to the upper surface of the standing portion of the side wall component. .   Steps for positioning the both end portions of the top plate forming portion formed on the top surface of the standing portion, the fixing of the side wall forming portion to the top surface of the standing portion at the both ends of the top plate forming portion, and An insert embedded in the horizontal portion of the stepped portion and a through hole for inserting bolts formed at both ends of the top plate constituting portion, and inserted into the through hole from above the top plate constituting portion. 8. A hangar for a pollutant storage container according to claim 6 or 7, wherein said bolt is screwed into said insert and fastened to be fixed.

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