DE8008903U1 - DISPOSAL CONTAINER FOR ELIMINATING RADIOACTIVE WASTE - Google Patents

Description

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Description

The invention relates to disposal containers for disposal of radioactive substances Waste with an “all free interior” hollow concrete block and with one inserted into the lanenrausa, FaS containing stored radioactive waste.

Ea is known to provide metallic barrels containing radioactive waste with a concrete jacket and in underground Deposit deposits below. While the concrete jacket shield Although a certain mechanical protection of the barrel located therein is guaranteed, penetration into the deposit can occur Water - or moisture - penetrate the shield and lead to the fact that the result is a non-corrosion-resistant Material existing FaB gradually rusted through. This means that these known disposal containers cannot be unreliable ensure “Vieiraehr cannot be ruled out that 3 leakage of radioactive substances after a certain storage period Substances from the barrels and thus radioactive contamination \ _J the entire storage rate takes place. That means that there are almost no such Eadlagerangsgsbinden no so-called 'retrievable bearings * can be set up that look safe for a longer period of time Have it relocated to another location, if this is desired or is required.

The object of the present invention is to create a final storage container of the type mentioned, which, with a simple structure, avoids the disadvantages described, a safe Disposal of radioactive waste and the creation of

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retrievable warehouses are guaranteed even when in the warehouses Water? or moisturizing fluid * occur.

A final disposal is required to solve the problem posed "Gebinäe für den Radioactive Waste Disposal" with a hollow concrete block with a free interior space and with one in the Interior roughness used, containing stored radioactive waste FaB according to the invention through an all-round, fillable Gap between the surface of the barrel and the inner surface of the Batonfolock and through a swiss roughness Completely filling intermediate layer, which surrounds the FaS on all sides, made of a water-repellent and water-impermeable filler material. Bin is such a disposal container practically rot, since that is completely in the filler material embedded FaS against the influence of water and moisture is safely protected. The concrete coating cares for you sufficient laechanical sehuta, indesa coming from outside ”? Impacts and the like, the sum example of a Veraatz occur in an underground deposit of which FaS will be held. At the same time, the Betomunhüllung represents a shield against ionizing radiation. And finally, the concrete cladding ensures all-round Balten the water-repellent and water-impermeable swish- • ehicht, so that a leaching of radioactive substances from the radioactive waste bin is safely avoided. The © Vsrrotungsicherung is also guaranteed when inexpensive, easily corroding drums are used. Thus this enables inexpensive / simple disposal gabinde according to the present

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Invention of setting up Bndlagarn, which can be retrieved if necessary are.

The filling material of the intermediate layer is preferably a casting compound. In the case of the filling material, it can do, for example a bitumanini cream, a clay mixture, a plastic Act cast resin or the like, üiu the greatest possible security to ensure / should the gwischenschichb not to be thin and, for example, a thickness between about 0.5 cm to * · ^ Have about 5 cm. Such an intermediate layer is suitable after desa inserting the barrel into the concrete block in sufficiently easy To be introduced, for example by potting. It also prevents the penetration of water or water-containing substances in the event of mechanical stresses as well as a leakage of waste materials from the FaS, besides Such an intermediate layer can have a certain shock-absorbing effect, which means that the inner barrel itself contributes to a large extent protected from strong impact loads on the concrete block is.

In adaptation to the usual cylindrical shape of the used® »barrels it is advisable to make the interior of the concrete block cylindrical to train. This allows easy centering of the cylindrical Barrel can be carried out in the cylindrical interior.

It is preferred to be the height of the cylindrical interior is greater than the height of the barrel used. This can

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the intermediate layer is also over the bottom "and cover of the Barrel extend without affecting areas of the intermediate layer as well as the Concrete block protruding. This is important because the intermediate layer is otherwise due to external mechanical influences, for example can be damaged by mutual displacement of stacked containers, which must be avoided at all costs.

In a further embodiment, spacers are between the barrel

O surface and ^ äer inner surface of the concrete block provided. This can be separate or integral with the usa Act concrete block formed spacers.

Suitable plastic inserts, for example, can be used as spacers or the like to be used when inserting of the barrel in the concrete block the required space on all sides to ensure.

Preferably, the disposal container is with respect to its outer V-shape in such a way that the slide extends in the longitudinal direction of the baton block existing outer surface the concrete jacket of the container assembly that is completely filled in © inen usable concrete blocks is polygonal in cross-section. Such disposal containers or concrete blocks can be compact in a bundle with a practically all-round system arrange, i.e. largely avoiding free | Intermediate area © n between the concrete blocks. Am such ver ~

bund let mechanically particularly stable and thus with one misalignment well protected in an underground warehouse, there the individual Concrete blocks always lie flat against each other. In contrast, would when using, for example, cylindrical concrete blocks linear engagement areas arise which are oversized Stresses, and: can lead to damage.

In a particularly preferred embodiment, the concrete casing of the concrete block has a square cross-section. Are the- «£ ti3« a ^ uaderföEaigcia Earthling ^ üsgsgebindo is particularly simple and easy to handle. Instead, the concrete shell of the Baton blocks also have an equilateral hexagonal cross-section. This © cross-sectional forum enables the production of a bundle assembly a compact, space-free arrangement according to a honeycomb meter. Apart from this, however, it is also possible an unequal polyblend, such as rectangular or trapezoidal, Provide cross-section of the concrete shell of the concrete block. This cross-sectional shape also enables a stable structure and a space-saving, two-way space-free arrangement in one Container network.

According to a practical embodiment, the concrete block has a minimum thickness of about 30 µm to about 200 µm. This ensures that the concrete block is sufficiently stable and largely gas-protected from damage. Äußerdas »1st such a minimum wall thickness with a view to shielding of Ionizing Radiation appropriate.

A simple embodiment is characterized by an open,

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The top of the concrete blocks can be closed by stacking several containers the end. Instead, it is also possible to use one on the Provide concrete block removable or pourable on the concrete cover. In both cases, the top areas of the intermediate layers are covered at least within a bundle stack.

In a further refinement, engaging means that fix on a stack are used on the concrete floor and / or on the top or on the concrete cover of the Concrete blocks provided. These engagement ratchets ensure that I '' (() the individual containers of the warehouse stacked on one side Slipping are prevented. In each case, projections on one container can be placed in depressions on the adjacent one Intervene in the container.

A preferred embodiment is characterized by a cylindrical projection protruding axially and centrally from the concrete floor whose diameter is slightly smaller than the diameter of the cylindrical interior space and its maximum axial length is about that j Distance between the top of the concrete block and the surface of the top intermediate layer above the FaB is equivalent to. When such containers are stacked, the projection of the concrete block that is placed on them engages in a centering manner as well as position-stabilizing and possibly covering into the cylindrical interior of the concrete blocks underneath. Of the A head start thus has a double function, in fact it is a kind Represents cover for the underlying concrete block and at the same time a laterally to each other taking place shifting the prevents mutually engaging concrete blocks.

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With a simple structure, the erfinduagegew & öe final storage facility is extremely reliable and easy to handle. It also prevents leaching in the event of unfavorable environmental influences
of radioactive content and. enables the creation of
Outer oil-friendly bearings that can be retrieved for practically an indefinite period of time.

The invention is illustrated below with reference to
illustrated Äusführungsbeispiale explained in more detail. £ 3 show:
FIG. 1 - in a schematic longitudinal section, a first embodiment form of a final storage container according to the invention,
Figure 2 ~ the Ead storage container from Figure 1 in a Ouer-

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'i Figure 3 ~ in a Qiserschnltt similar to Figure 2, an end position |

shipping container according to a second embodiment and |

Figures 4 and 5 - each a stack with two in each other;

Staple set intervention befindliehen Sndlagerungage- \

bind according to the present invention. ; ·

V / According to FIG. 1, a hollow concrete block 10 has a concrete floor |

I 12 and a concrete casing 14. The interior d <ag Baton block is 10 g cylindrical and includes a barrel 16 IAIT singe-level radio- \ active waste. The barrel 16 is spaced from I on all sides

the inside surface of the Batonblodcs 10, and this Ab- | The stand is maintained, for example, with spacers of 20 * Lm floor and wall area. This creates
Between the FaS 16 and the concrete block 10 there is a free space, there with a water-repellent and water-impermeable one

Filling material can be filled, the one the barrel 16 all se-

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tig enclosing intermediate layer 18 forms. In the present In the first case, a correspondingly shaped concrete cover 22 is inserted into the upper side of the cylindrical interior which is initially open or molded, the one on its outside with the top Limitation of the concrete shell 14 is aligned.

the sectional view of Figure 2 can be seen that the Concrete block 10 from Figure 1 in the present embodiment is cuboid / is therefore square in cross-section. Such a one The design is compact and stable. It enables a dense, Stacking and lining up several without roughness Disposal containers in a container network in a storage facility, As shown in FIG. 2 on the upper and lower sides of the concrete block 10, several of these concrete blocks 10 be lined up with mutual alignment (see above) or with mutual displacement (see below). In addition, the corner areas of the concrete jacket 14 can be slightly beveled be as indicated by dashed lines.

% J) Gera & B Figure 3, a concrete block 10-1 has a concrete casing 14-1 _r which is hexagonal on the outside on the outside on the same side. In this embodiment, too, the concrete block 10 - 1 has a preferably cylindrical inner roughness into which the PaS 16 is inserted and surrounded by a hollow cylindrical intermediate layer 18. Such a hexagonal concrete block 10-1 can be arranged like a honeycomb pattern in a composite structure, whereby a compact, space-free overall arrangement is also created. All individual containers are flat against each other and prevent

the occurrence of gaps and excessive pressure loads. - 13 -

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Ia? Igur 4 is shown an existing two Endlagerungsgeöinden stack in way of example only * Two Bestonblöoke 10-2, which practically differ from the concrete block 10 only in ä & B respectively have an axially and centrally projecting from the concrete slab, cylindrical projection 24, stacked on top of each other. This projection 24 has a diameter _r or is somewhat smaller than the inner area of the concrete blocks 10-2, so that when the concrete blocks 10-2 are stacked in the inner

O area of the lower Betoablocks 10-2 engages laterally in a centering manner «This creates a varrute-like» overall structure. The concrete block® 10-2 is closed in the manner shown by a sissy or cast-in dachshund 22, so that in the pre-filling case something is sunk into the interior of the concrete block 10-2 so that the projection 24 can intervene. Om obtain a stand as stable as possible arrangement au should calibration of the upper concrete block 10-2 not iia region of the annular pre jump 24 but isi area d © 3 concrete jacket to d @ vn lower concrete block 10 are supported.

In FIG. 5 , a stack consisting of two final storage areas is again shown as an example. Two concrete blocks 10-3 located one above the other are each provided at their bottom with an axially protruding annular projection 26, which can be grooved into a cantepreehend the annular recess in the area of the BetoniKamtssl face of a beaded tone block 10-3, the annular projections 26 \ md / depressions 28 can also be one ©, interrupted © projections and recesses

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catch to be replaced. As with the execution form from Figure 1 the concrete blocks 10-3 by aligning with their front strings, Dachshunds inserted or poured into it © interior 22 to be introverted.

The embodiments shown are only exemplary, and numerous modifications, modifications and adaptations to the respective operational requirements can be made within the scope of the present invention. It is important only that the _f all sides formed with flat outer Begrenaungsflächen concrete block is separated from the embedded barrel by a surrounding this on all sides Swischenschicht of a suitable filler material, the results in a stable and verrottungssicheres Endlagerungsgebinde. The disposal containers can be stacked vertically, horizontally or at an angle.

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Claims (1)

ii »w * lt» act 1376/4701 Registrant: Owe Grahmann, Buohenweg 1, 6458 Rodanbaesh 1 Bundle storage containers for the disposal of radioactive waste 1. Endlagerungsgebinde for removing radioactive "!: waste with a free Inn" nraun "having hollow concrete block and used by an in Innenrauia, embedded radioactive Abfall® containing Fab, characterized thr ough a allaeltigen, auefüllharen space between illustrates surface of the barrel ( 1S) as well as the inner surface of the concrete blocks {10, 10-1, to-2, 10-3) and through an intermediate layer (18) made of a water-repellent and water-impermeable filler material that completely fills this similar space and closes the PaS (16) on all sides . 2. Final storage container according to claim 1 _r, characterized in that the filling material of the intermediate layer (18) is a potting compound. 3. Endlagarungagebinde according to claim 1 or 2, characterized gekennzeiehnet, that the filling material of the intermediate layer (18) is a bituminous mixture, a tonite seal, a plastic, a casting resin or the like. 4. Endlagerungsgabinde according to one or more of claims 1 to I, characterized in that the intermediate layer (18) has a thickness between about Ö, S cm to about S cm. 5. Jändlagerungsgöfoinde according to one or more of claims 1 - · 2 - • · · ■ to 4, characterized by a cylindrical interior concrete block (10, 10-1, 10-2, 10-3), 6. final storage container according to claim 5, characterized in that daft the height of the cylindrical interior greater than the height of the «inserted barrel (16) is. 7. Bundle storage container according to one or more of claims 1 to 6, characterized by spacers (20) «wischan the Barrel surface and the inner surface of the beetroot (10, 10-1, 10-2, 1Ö-3 ». 8. Bndlagerungsgebinde according to claim 7, characterized by separate, insertable spacers (20). 9. disposal container according to claim 7, characterized by with the concrete block (10, 10-1, 10-2, 10-3) formed in one piece Spacers (20). 10 · final storage containers according to one or more of claims 1 1 to 9 , characterized in that the outer surface of the concrete casing (14) of the concrete block (10) which can be inserted into a completely filled composite container, consisting of boundary planes running in the longitudinal direction of the concrete block (10, 10-1, 10-2, 10-3) , 10-1, 10-2, 10-3) is polygonal in cross section. 11. disposal container according to claim 10, characterized by a square cross-section of the concrete casing (14) of the concrete block (10). - 3 - 12. Endlagarungegebinde according to claim 10, characterized by an equilateral hexagonal cross-section of the concrete shell (14-1) the concrete blocks (10-1). 13. disposal container according to claim 10, characterized by an unequal polygonal, such as rectangular or trapezoidal, cross-section of the concrete shell of the concrete block. 14. Bndl & germigsgebinde according to one or more of claims 1 up to 13, characterized by a minimum wall thickness of the Bstonblock (10, 10-1, 10-2, 1Θ-3) from about 30 au »to about 200 ram. | 15 "Sndlagsrungsgebinda according einesa or aehraren of claims 1 to 14, gekannzeichnet by an open, by stacking" EH] ■ ·, of exemplary container closable top of the concrete block (10, I 10-1, 10-2, 10-3). 16. Bndlagerungsgebiade according to one or more of claims 1 to 14, characterized by a concrete cover that can be placed or poured onto the concrete block (22. ' 17. SuuiegöturifSf "blade after a" or sshrersn dsr claim 1 to 16, characterized by stack-fixing engagement means {24, 25, 23) on the concrete floor and / or on the top or on the Concrete cover of the concrete block (10-2, 10-3). 18. Endlagarungsgebinde according to claim 17, characterized by a cylindrical protruding axially and centrally from the concrete floor Projection (24), the diameter of which is slightly smaller than the diameter of the cylindrical interior and therefore - 4 - ββη axial length maximaL the distance between the top of the Concrete blocks as well as the surface of the above the barrel (13) corresponds to the upper diaphragmatic layer (18). It ii