EP1978530B1 - Container system for receiving radioactive waste - Google Patents

Container system for receiving radioactive waste Download PDF

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Publication number
EP1978530B1
EP1978530B1 EP08153917A EP08153917A EP1978530B1 EP 1978530 B1 EP1978530 B1 EP 1978530B1 EP 08153917 A EP08153917 A EP 08153917A EP 08153917 A EP08153917 A EP 08153917A EP 1978530 B1 EP1978530 B1 EP 1978530B1
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EP
European Patent Office
Prior art keywords
container
shielding
end storage
storage container
repository
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08153917A
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German (de)
French (fr)
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EP1978530A1 (en
Inventor
Heinz Bienek
Frank Dr. Lypsch
Udo Sach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Steag Energy Services GmbH
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Evonik Energy Services GmbH
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Publication date
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Publication of EP1978530A1 publication Critical patent/EP1978530A1/en
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Publication of EP1978530B1 publication Critical patent/EP1978530B1/en
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers

Definitions

  • the invention relates to a container system for receiving radioactive waste with a repository container of cylindrical shape and a final storage container receiving shielding container, the repository container having a mechanically stable and corrosion-resistant wall and arranged on an end face loading opening which is closed with a lid having at least one primary cover system, wherein the shielding container has a bottom, a cylindrical shell and an opening, wherein the disposal container is insertable through the opening in the axial direction, wherein the opening of the Able representatives is formed so that the sealed with the lid system disposal container is ejected through the loading opening, and wherein a holding device is provided for axially fixing the repository container received in the shielding container.
  • a container system of the type mentioned is, for example from the GB 1,148,816 known.
  • the container is described for example on the website "www.gns.de” or under “de.wikipedia.org/wiki/pollux_(kernkern)”.
  • the Pollux container consists of an outer shielding made of cast iron with nodular graphite, the wall of which additionally contains moderator rods, as well as an inner container therein (referred to here as a repository container) made of steel.
  • the inner one Container has a screw-in primary cover and a secondary cover which can be welded on above.
  • the secondary lid is used for gas-tight sealing.
  • both the inner container and the shielding container are of circular cylindrical shape.
  • the term cylindrical shape is intended to encompass both the circular cylindrical shape and other cylindrical shapes within the scope of the following disclosure.
  • a cylinder is created by parallel displacement of a straight line of given length along a closed curve; A circular cylinder is created when the straight line is moved along a circle.
  • the cylindrical shape of the repository container and the Able mattersers must be coordinated.
  • FIG. 1 shows the basic structure of the well-known Pollux container system, consisting of the outer shielding container 1 and the inner container 3.
  • the inner container 3 is made of a corrosion-resistant and mechanically stable material and has a gas screw tight by means of bolts primary cover 4 including a moderator plate 8 and a welded-on corrosion resistant secondary cover 5 on.
  • the inner container (repository container) can receive fuel from nuclear power plants and / or glazed radioactive waste (HAA molds) from reprocessing plants.
  • the outer shielding container 1 has a screw-in protective cover (with a shielding function) 2 and supporting pins secured to the cylindrical jacket surface.
  • the cylindrical wall contains moderator rods.
  • the system consisting of shielding container and repository container (inner container) is first prepared by removing the protective cover 2 screwed into the internal thread of the shielding container.
  • the container system which can be handled directly by the operating personnel due to the overlaying additional shielding is transported to the welding location where the temporary additional shielding is removed and replaced by a welding shield permitting welding. Then the secondary lid is placed and welded. After examination of the weld, the temporary welding shield is removed, the annular retaining ring unscrewed from the internal thread of the shielding and screwed in the protective cover 2.
  • the complete container system is then transported to the repository and, for example, disposed of in a tunnel of a repository mine, where it can be handled by the operator.
  • a disadvantage of the known Pollux container system is that for axial locking of the inner container in the shielding of the protective cover must be replaced by a screwed into the same thread annular retaining ring, and that the complete container system, consisting of inner container and shielding, is finally stored, resulting in a unfavorable mass ratio of radioactive waste to packaging material in the repository.
  • the object of the invention is to further develop the container system according to the prior art and to simplify the design that an axial locking of the repository container is simplified in the shield, and at the same time a particularly simple ejection of the repository container is made possible.
  • This object is achieved by a container system with the features of claim 1.
  • the container system of the type mentioned is inventively characterized in that the holding device is integrated in the shell of the Able organizations and can engage in the wall of the Endlager materialsers, wherein the axial fixation by means of an attacking from the outside of an operating element of the holding device of the Able anyers operating device can be canceled and that the bottom of the shielding container is axially displaceable in the shell thereof and has an externally accessible docking device on which an operating device can engage such that it can displace the bottom axially in the direction of the opening such that an enclosed final disposal container is ejected.
  • the holding device of the container system according to the invention enables a simpler fixing of the repository container in the shielding container. It is no longer necessary to cumbersome screw a retaining ring - the axial fixation can be easily snapped with the help of an attacking from the outside of an operating element of the holding device of the shielding control unit and also canceled. The necessary steps are much easier and can be performed by machine - the necessary according to the prior art screwing a retaining ring can be done only cumbersome or not at all by machine.
  • the ejectability of the repository container allows the repository in the repository itself is easily separated from the shield.
  • the ejectability over the bottom of the container system now allows a separation of the actual repository container from the shield - this can then be removed from the repository and fed to another use. Since the repository container is ejected, care is always taken to ensure that sufficient shielding from radiation is provided via the shielding container.
  • the axial fixation of the repository container in the shielding container by means of an externally to an operating element of the holding device lifted the shielding attacking control unit.
  • the shielding bottom also serves as a slide for ejecting the repository container.
  • the docking device serves to be able to pull the floor back into the shielding container after ejection of the inserted repository container.
  • the sliding floor thus allows a particularly simple ejection of the repository container in the repository area. If the repository container is displaced by means of the bottom of the screening container, it is ejected with the entire bottom surface. This is advantageous because the repository containers to be ejected have a very high weight. Tilting of the repository container during ejection can be effectively prevented.
  • suitable devices can be provided, for example, in the shell of the shielding container, which eject the repository container in the actual repository from the shielding container.
  • the ejection capability is preferably ensured by the fact that the bottom of the shielding container has an opening that can be opened by an operating device in such a way that an ejection device can act on the final-disposal container through the opening.
  • This embodiment is structurally very simple, so that advantageously no costly and costly redesigns of the container system are necessary.
  • the device required for ejection is structurally simple and therefore inexpensive and easy to handle.
  • the shielding container preferably has an annular shielding body attached to the end of the jacket facing away from the opening, wherein the displaceable bottom rests on a radially inwardly projecting bottom section of the shielding body. Between a radially inner part the bottom-side end face of the shell of the shielding container and the attached shielding body is preferably formed a circumferential gap space, which can accommodate elements of the holding device. This design of the shielding container simplifies the construction while ensuring maximum shielding.
  • the primary lid of the lid system of the final storage container is mechanically and shieldingly dimensioned to be self-shielding and meet the mechanical requirements in the repository and the shielding requirements for handling and transporting the container system after closure of the loading opening by the primary lid, without the opening of the shielding container requires an additional shielding and closing device.
  • a corresponding embodiment makes it possible to omit the protective cover of the shielding container and the temporary shields. With the elimination of these devices, the steps of applying and re-removing the shields fall away. The filling process is considerably shortened and simplified.
  • the container system is first prepared by a repository container is inserted into a (open-topped) shielding container. Then, the holding device is operated such that the final storage container is axially fixed (held) in the shielding container. The container system is docked to the hot cell. Subsequently, the primary lid is removed in the hot cell, filled the repository container and the primary lid put back on. Thereafter, the container system is undocked and the primary lid can be bolted without the need for additional shielding. Subsequently, if necessary, a secondary lid can be welded on, which in turn can be carried out without additional shielding measures. The container system is now stored and preferably transported lying to the repository. In the repository area, for example in the repository tunnel, the locking of the holding device is released and the repository container ejected through the opening of the Able mattersers and stored. The empty shielding container is returned to the loading station and can be prepared for receiving a further repository container.
  • the wall of the repository container has at least one recess into which the holding device of the repository container can engage.
  • the recess allows a secure positive engagement of an element of the holding device.
  • the recess is preferably arranged at the end facing away from the loading opening vertically below the plane of the inner surface of the bottom of the repository container. This arrangement of the recess facilitates the shield, since the associated reduction of the wall thickness of the repository container is carried out in a region below the stored radioactive waste.
  • the recess is located as close to the bottom of the repository container.
  • the recess is preferably a circumferential groove in the wall of the repository container, can engage in the pivot segments of the holding device in the radial direction.
  • the pivot segments are preferably arranged equidistantly in the circumferential direction.
  • five pivot segments are used, which are arranged in an annular gap of the shielding in the vicinity of the bottom of the repository container and are pushed in actuation by a collar in the radial direction inwards into the circumferential groove of the repository container.
  • Such an arrangement allows a receptacle of the repository container regardless of its rotational position in the shielding.
  • more or less pivot segments can be arranged in the shielding container, without the need for a different design of the circumferential groove of the repository container.
  • the at least one recess of the repository container is formed by a circumferential groove and a plurality of circumferentially distributed tooth-shaped recesses between the circumferential groove and the bottom of the repository container
  • the holding device has adapted to the shape of the tooth-shaped recesses tooth-shaped projections which inserted in the manner of a bayonet lock in the axial direction between the tooth-shaped recesses of the repository container into the circumferential groove and in the circumferential groove in the circumferential direction behind the remaining between the tooth-shaped recesses protrusions Repository can be rotated.
  • the holding device in the form of a bayonet closure, it is necessary that the number, width and arrangement of the tooth-shaped projections of the repository container and the holding device are matched to each other.
  • the repository container must be inserted in a predetermined rotational position in the shield, so possibly an axial groove or an axial projection on the repository container and corresponding projections or grooves are provided in the inner wall of the shield.
  • the primary cover reinforced according to the invention in its shielding preferably contains a moderator layer.
  • the primary cover is also preferably screwed and has a metal seal and / or elastomeric seal to the wall of the repository container.
  • FIG. 1 shows a schematic illustration of the known Pollux container system.
  • the container system has an outer cylindrical shielding container (1) and also one cylindrical inner container (3) for receiving the material to be stored.
  • the inner container (3) consists of a corrosion-resistant and mechanically stable material and is sealed in the closed state with a lid system.
  • This consists of a gas-tight screwed by means of bolts screws primary cover (4) and arranged between primary cover (4) and the material to be stored, consisting of graphite moderator (8).
  • a secondary cover (5) is arranged, with its welding between the base body of the inner container (3) and the secondary cover (5), a weld (6) is formed.
  • a damping (7) is launched.
  • the shielding container (1) has a screw-in protective cover with a shielding function (2) in the closed state, and a plurality of supporting pins (11) on the cylindrical jacket surface of the shielding container (1).
  • the shielding container (1) is provided with a plurality of axially arranged bores in which moderator rods (9) are inserted. These holes and the moderator rods (9) extend substantially over the entire height of the shielding container (1).
  • FIGS. 2A to 2D show different views of a first embodiment of the container system according to the invention.
  • FIG. 2A shows a sectional view of the container system according to the invention.
  • FIG. 2D shows a side view of the first embodiment, wherein the shielding container (30) is partially cut away.
  • the container system has a repository container (20) of cylindrical shape and a repository container (20) receiving shielding container (30).
  • the disposal container (20) has a cylindrical jacket, a loading opening which is arranged on an end face and can be closed with a cover system, and a base (22).
  • the wall thickness of the cylindrical shell and the bottom (22) of the repository container (20) is designed according to the mechanical requirements in the repository and the life in the corroding repository environment.
  • the sealing surfaces of the repository container (20) are machined, and the Surfaces of the repository container (20) can be provided with a corrosion protection.
  • the lower shell region of the repository container (20) is provided with a circumferential groove (23) (see in particular Figure 2C ), in which for the axial fixation of the repository container (20) in the shielding container (30) a holding device (24 - 28) can engage. In the embodiment according to the FIGS. 2A to 2D this holding device (24 - 28) is designed as a segment closure.
  • FIG. 2B shows a sectional view along the line BB ( FIG. 2A ) and illustrate the structure of the holding device (24 - 28).
  • the holding device has an adjusting ring (24) with guide grooves (24a) and spacers (28), wherein the adjusting ring (24) rests on the inside of the jacket of the shielding container (30).
  • the guide grooves (24a) projects an adjusting pin of the associated Schwenksegementes (25).
  • Each pivoting segment (25) has a pivoting segment pivot point (27), so that by rotation of the adjusting ring (24) and the movement of the adjustment pins forced via the groove (23), the pivoting segments are pivoted either inwardly or outwardly.
  • the adjusting ring (24) on two operating elements (26), which are designed as removable lever and extend through a recess in the wall of the Able mattersers (30) and thus are externally operable.
  • the pivot segments (25) In the open position, the pivot segments (25) do not engage in the groove (23) in the shell of the repository container (20) so that it can be removed from the screening container (30).
  • the lever (26) in the closed position Upon movement of the lever (26) in the closed position, the pivot segments (25) in the radial direction inwardly into the circumferential groove (23) in the repository container (20), whereby it is fixed axially in the shielding container (30).
  • the design of the holding device as a segment closure has the advantage that the receptacle of the final storage container (20) in the shielding container (30) is independent of its rotational position in the shielding container (30). Furthermore, a different number of pivot segments (25) can be arranged in the shielding container (30), depending on the mechanical requirement, without requiring a deviating configuration of the circumferential groove (23) of the final storage container (20).
  • the shielding container (30) is an upwardly open, thick-walled, cylindrical metallic body (eg of ductile iron) with a flanged annular shielding body (31).
  • the flanged shielding body (31) has a radially inwardly projecting bottom portion (31a) on which the bottom (34) of the shielding container (30) rests.
  • the bottom (34) is not fixed to the flanged shielding body (31), but rather is formed so as to be axially movable in the shielding container (30) so that the entire repository container (20) can be pushed out of the shielding container.
  • a Ausschubstange (35) can be fastened to the bottom (34), with which the bottom (34) can be moved in the shield, whereby the repository container (20) can be pushed out of the shield.
  • the pushing out of the repository container (20) from the screening container (30) can be simplified by providing the outer surface of the repository container (20) and / or the inner surface of the screening container (30) with a coating which has a low frictional resistance in that suitable sliding bearings or sliding bodies (not shown) are introduced into the shielding container (30).
  • the Ausschubstange (35) can be provided for example in the bottom (34) threaded holes.
  • the repository itself allows the Ausschiebles the repository container (20) that this can be pushed out of the horizontal shielding (30) and then remains in the repository, whereas the shielding container (30) can be reused, whereby the cost of disposal can be reduced.
  • a moderator layer (32) of polyethylene, for example, is provided, which is lined with sheet metal (33).
  • the end of the container (20) facing away from the bottom surface (34) of the Able mattersers (30) is provided with a plurality of in sheet metal (33a) moderator elements (32a), which may for example also comprise polyethylene.
  • the moderator layer (32) and the moderator elements (32a) are designed in accordance with the neutron shielding requirements that are necessary for the particular material to be stored.
  • the wall thickness of the shielding container (30) and the bottom (34) are designed in accordance with the requirements of the gamma shield, which are necessary for the material to be stored in each case.
  • the shielding container (30) further comprises a plurality of support pins (21) which extend through openings in the sheet (33) and the moderator layer (32) in recesses in the shell of the Able mattersers (30) and are secured in these recesses.
  • the trunnions (21) ensure good transportability of the container system.
  • a system of a plurality of different covers is used (40-42) (see FIG. 2A ).
  • the cover system has a primary lid (40) with a moderator layer (41) attached thereto, the thickness of the individual layers being designed and optimized in addition to the mechanical requirements such that the shielding requirements for handling and transporting the container system after closing the container Loading through the primary lid are met, without the shielding needs an additional shielding and closure device.
  • the primary cover (40) of the repository container (20) is constructed and dimensioned according to the type and intensity of the radioactive radiation of the respective waste so that it is self-shielding and in the handling of the closed with the primary lid (40) final storage container (20) no additional, possibly temporary, shielding is necessary.
  • the primary cover (40) can either be screwed into the repository container (20) or, as in the illustrated embodiment, bolted to the repository container (20) via bolts. In order to ensure the tightness of the repository container (20) after introduction of the primary cover (40), this has a (not shown) metal seal and optionally an additional (not shown) elastomeric seal.
  • the cover system comprises, in addition to the primary cover (40) with moderator plate (41), a secondary cover (42) which is welded to the main body of the repository container (20) after screwing the repository container (20) to the primary cover (40). After the welding of the secondary cover (42), this is mainly responsible for the gas-tight sealing of the repository container (20).
  • the disposal container (20) and the welded secondary cover (42) form the permanent steel containment in the corrosive environment of the repository and ensure the tightness, the wall thickness of the cylinder jacket and the bottom (34) of the repository container (20) and the introduced Primary cover (40) are formed according to the mechanical requirements in the repository.
  • FIGS. 3A to 3D show different views and detailed views of a second embodiment of the container system according to the invention.
  • FIG. 3A shows a sectional view of the second embodiment of the container system according to the invention.
  • the repository container (20 ') corresponds essentially to the repository container (20) according to the first embodiment, however, for fixing the repository container (20') in the Able disposer (30 ') another holding device is provided.
  • the second embodiment of the first embodiment according to the FIGS. 2A to 2D different. Not described features, such as the bottom of the shielding container and the lid system of the repository container, correspond to those of the first embodiment.
  • the holding device is designed as a bayonet closure. This one is especially in FIGS. 3B and 3C illustrated.
  • the repository container (30 ') has a circumferential groove (23') with a plurality of tooth-shaped recesses (23a ') distributed along the circumference of the groove (23'), wherein the holding device conforms to the shape of the tooth-shaped recesses (23a ').
  • the tooth-shaped projections (29a ') are part of a bayonet ring (29') on which removably two operating elements (for example designed as a lever) (26 ') are fastened for actuating the bayonet closure.
  • the bayonet ring (29 ') with the tooth-shaped projections (29a') thus forms a sprocket.
  • the operating elements (26 ') designed as levers extend through the shielding container (30') and the moderator layer (32 ') attached to the shielding container and the metal sheet (33') covering the moderator layer and can thereby be actuated from the outside.
  • the holding device in the form of a bayonet closure, it is necessary that the number, width and arrangement of the tooth-shaped projections (29b ') of the repository container (20') and the holding device are coordinated.
  • the repository container (20 ') in a predetermined rotational position in the shielding container (30') must be inserted, which is why an optional axial groove or an axial projection on the repository container (30 ') and corresponding projections or grooves in the inner wall of the Able mattersers (30 ') can be provided.
  • a groove (35 ') in the shielding container (30') and a groove (34 ') in the disposal container (20') are connected to a key (36 ').

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Refuse Collection And Transfer (AREA)
  • Packages (AREA)
  • Treatment Of Sludge (AREA)
  • Refuse Receptacles (AREA)

Abstract

The system has a shielding container (30) for receiving a final storage box (20). The box has a primary lid for closing a load opening. The lid is mechanically dimensioned to act as a shield, such that the mechanical requirements at final storage and the shielding requirements for handling and transportation of the system can be achieved according to the closing of load opening by the lid without the need to open a shielding container of an additional shielding and closing device. A holding device for axial fixation of final storage box is provided in the wall of box.

Description

Die Erfindung betrifft ein Behältersystem zur Aufnahme radioaktiver Abfälle mit einem Endlagerbehälter zylindrischer Gestalt und einem den Endlagerbehälter aufnehmenden Abschirmbehälter, wobei der Endlagerbehälter eine mechanisch stabile und korrosionsfeste Wandung und eine an einer Stirnfläche angeordnete Beladeöffnung aufweist, die mit einem zumindest einen Primärdeckel aufweisenden Deckelsystem verschließbar ist, wobei der Abschirmbehälter einen Boden, einen zylindrischen Mantel und eine Öffnung aufweist, wobei der Endlagerbehälter durch die Öffnung in axialer Richtung einsetzbar ist, wobei die Öffnung des Abschirmbehälters so ausgebildet ist, dass der mit dem Deckelsystem verschlossene Endlagerbehälter durch die Beladeöffnung ausstoßbar ist, und wobei eine Haltevorrichtung zum axialen Fixieren des in den Abschirmbehälter aufgenommenen Endlagerbehälters vorgesehen ist.The invention relates to a container system for receiving radioactive waste with a repository container of cylindrical shape and a final storage container receiving shielding container, the repository container having a mechanically stable and corrosion-resistant wall and arranged on an end face loading opening which is closed with a lid having at least one primary cover system, wherein the shielding container has a bottom, a cylindrical shell and an opening, wherein the disposal container is insertable through the opening in the axial direction, wherein the opening of the Abschirmbehälters is formed so that the sealed with the lid system disposal container is ejected through the loading opening, and wherein a holding device is provided for axially fixing the repository container received in the shielding container.

Ein Behältersystem der eingangs genannten Art ist zum Beispiel aus der GB 1,148,816 bekannt.A container system of the type mentioned is, for example from the GB 1,148,816 known.

Ferner ist ein derartiges Behältersystem beispielsweise als Pollux-Behälter zur Endlagerung radioaktiven Abfalls bekannt. Der Behälter ist beispielsweise auf der Internetseite "www.gns.de" oder auch unter "de.wikipedia.org/wiki/pollux_(kerntechnik)" beschrieben. Der Pollux-Behälter besteht aus einem äußeren Abschirmbehälter aus Gußeisen mit Kugelgraphit, dessen Wandung zusätzlich Moderatorstäbe enthält, sowie einem darin befindlichen Innenbehälter (hier als Endlagerbehälter bezeichnet) aus Stahl. Der innere Behälter weist einen einschraubbaren Primärdeckel und einen darüber aufschweißbaren Sekundärdeckel auf. Der Sekundärdeckel dient zum gasdichten Verschließen.Furthermore, such a container system is known, for example, as Pollux container for the disposal of radioactive waste. The container is described for example on the website "www.gns.de" or under "de.wikipedia.org/wiki/pollux_(kernkern)". The Pollux container consists of an outer shielding made of cast iron with nodular graphite, the wall of which additionally contains moderator rods, as well as an inner container therein (referred to here as a repository container) made of steel. The inner one Container has a screw-in primary cover and a secondary cover which can be welded on above. The secondary lid is used for gas-tight sealing.

Bei dem Pollux-Behältersystem sind sowohl der Innenbehälter als auch der Abschirmbehälter von kreiszylindrischer Form. Der Begriff der zylindrischen Gestalt soll im Rahmen der nachfolgenden Offenbarung sowohl die kreiszylindrische Gestalt als auch andere zylindrische Formen umfassen. Mathematisch betrachtet entsteht ein Zylinder durch Parallelverschiebung einer Geraden vorgegebener Länge entlang einer geschlossenen Kurve; ein Kreiszylinder entsteht, wenn die Gerade entlang eines Kreises verschoben wird. Selbstverständlich müssen die zylindrische Gestalt des Endlagerbehälters und des Abschirmbehälters aufeinander abgestimmt sein.In the Pollux container system, both the inner container and the shielding container are of circular cylindrical shape. The term cylindrical shape is intended to encompass both the circular cylindrical shape and other cylindrical shapes within the scope of the following disclosure. Mathematically, a cylinder is created by parallel displacement of a straight line of given length along a closed curve; A circular cylinder is created when the straight line is moved along a circle. Of course, the cylindrical shape of the repository container and the Abschirmbehälters must be coordinated.

Figur 1 zeigt den prinzipiellen Aufbau des bekannten Pollux-Behältersystems, bestehend aus dem äußeren Abschirmbehälter 1 und dem inneren Behälter 3. Der innere Behälter 3 besteht aus einem korrosionsfesten und mechanisch stabilen Material und weist einen mittels Bolzenschrauben gasdicht verschraubbaren Primärdeckel 4 einschließlich einer Moderatorplatte 8 sowie einen aufgeschweißten korrosionsbeständigen Sekundärdeckel 5 auf. Der innere Behälter (Endlagerbehälter) kann Brennelemente aus Kernkraftwerken und/oder verglaste radioaktive Abfälle (HAA-Kokillen) aus Wiederaufbereitungsanlagen aufnehmen. Der äußere Abschirmbehälter 1 weist einen einschraubbaren Schutzdeckel (mit Abschirmfunktion) 2 und an der zylindrischen Mantelfläche befestigte Tragzapfen auf. In der zylindrischen Wandung sind Moderatorstäbe enthalten. FIG. 1 shows the basic structure of the well-known Pollux container system, consisting of the outer shielding container 1 and the inner container 3. The inner container 3 is made of a corrosion-resistant and mechanically stable material and has a gas screw tight by means of bolts primary cover 4 including a moderator plate 8 and a welded-on corrosion resistant secondary cover 5 on. The inner container (repository container) can receive fuel from nuclear power plants and / or glazed radioactive waste (HAA molds) from reprocessing plants. The outer shielding container 1 has a screw-in protective cover (with a shielding function) 2 and supporting pins secured to the cylindrical jacket surface. The cylindrical wall contains moderator rods.

Zum Beladen des Endlagerbehälters wird zunächst das aus Abschirmbehälter und Endlagerbehälter (Innenbehälter) bestehende System vorbereitet, indem der in das Innengewinde des Abschirmbehälters eingeschraubte Schutzdeckel 2 entfernt wird.For loading the repository container, the system consisting of shielding container and repository container (inner container) is first prepared by removing the protective cover 2 screwed into the internal thread of the shielding container.

Zur axialen Arretierung des Innenbehälters in dem Abschirmbehälter wird der Schutzdeckel 2 durch einen in dasselbe Gewinde eingeschraubten kreisringförmigen Haltering ersetzt. Anschließend wird das Behältersystem unter einer Heissen Zelle angedockt. Dann wird der Primärdeckel 4 (ein Sekundärdeckel ist noch nicht vorhanden) des Innenbehälters einschließlich der darunter angeordneten Moderatorplatte 8 fernhantiert abgenommen und in der Beladezelle abgelegt. Dann werden die Brennstäbe oder die radioaktiven Abfälle in den Innenbehälter eingebracht. Anschließend wird der Primärdeckel 4 fernhantiert eingesetzt und das Behältersystem wird abgedockt. Anschließend wird eine temporäre Zusatzabschirmung auf den Primärdeckel aufgelegt, wobei allerdings die Bolzenschrauben zugänglich bleiben. Der Primärdeckel wird dann mittels der Bolzenschrauben fest verschraubt. Das aufgrund der aufliegenden Zusatzabschirmung direkt von dem Bedienpersonal hantierbare Behältersystem wird zum Schweißplatz transportiert, wo die temporäre Zusatzabschirmung abgenommen und durch eine ein Schweißen gestattende Schweißabschirmung ersetzt wird. Dann wird der Sekundärdeckel aufgelegt und verschweißt. Nach Prüfung der Schweißnaht wird die temporäre Schweißabschirmung entfernt, der kreisringförmige Haltering aus dem Innengewinde des Abschirmbehälters ausgeschraubt und der Schutzdeckel 2 eingeschraubt. Das vollständige Behältersystem wird dann zum Endlager transportiert und beispielsweise in einen Stollen eines Endlagerbergwerks endgelagert, wobei es von dem Bedienpersonal gehandhabt werden kann.For axial locking of the inner container in the shielding of the protective cover 2 is replaced by a screwed into the same thread annular retaining ring. Subsequently, the container system is docked under a hot cell. Then the primary lid 4 (a secondary lid is not yet available) of the inner container including the disposed below moderator plate 8 removed and stored in the loading cell. Then the fuel rods or the radioactive waste are introduced into the inner container. Subsequently, the primary cover 4 is used remotely and the container system is undocked. Subsequently, a temporary additional shield is placed on the primary cover, but the stud bolts remain accessible. The primary cover is then screwed tight by means of stud bolts. The container system which can be handled directly by the operating personnel due to the overlaying additional shielding is transported to the welding location where the temporary additional shielding is removed and replaced by a welding shield permitting welding. Then the secondary lid is placed and welded. After examination of the weld, the temporary welding shield is removed, the annular retaining ring unscrewed from the internal thread of the shielding and screwed in the protective cover 2. The complete container system is then transported to the repository and, for example, disposed of in a tunnel of a repository mine, where it can be handled by the operator.

Nachteilig bei dem bekannten Pollux-Behältersystem ist, dass zur axialen Arretierung des Innenbehälters in dem Abschirmbehälter der Schutzdeckel durch einen in dasselbe Gewinde eingeschraubten kreisringförmigen Haltering ersetzt werden muss, und dass das vollständige Behältersystem, bestehend aus Innenbehälter und Abschirmbehälter, endgelagert wird, wodurch sich ein ungünstiges Massenverhältnis von radioaktivem Abfall zu Verpackungsmaterial in dem Endlager ergibt.A disadvantage of the known Pollux container system is that for axial locking of the inner container in the shielding of the protective cover must be replaced by a screwed into the same thread annular retaining ring, and that the complete container system, consisting of inner container and shielding, is finally stored, resulting in a unfavorable mass ratio of radioactive waste to packaging material in the repository.

Aufgabe der Erfindung ist es, das Behältersystem gemäß dem Stand der Technik derart weiterzuentwickeln und konstruktiv zu vereinfachen, dass eine axiale Arretierung des Endlagerbehälters in dem Abschirmbehälter vereinfacht wird, und gleichzeitig ein besonders einfaches Ausstoßen des Endlagerbehälters ermöglicht wird. Diese Aufgabe wird erfindungsgemäß durch ein Behältersystem mit den Merkmalen des Anspruchs 1 gelöst.The object of the invention is to further develop the container system according to the prior art and to simplify the design that an axial locking of the repository container is simplified in the shield, and at the same time a particularly simple ejection of the repository container is made possible. This object is achieved by a container system with the features of claim 1.

Das Behältersystem der eingangs genannten Art ist erfindungsgemäß dadurch gekennzeichnet, dass die Haltevorrichtung in dem Mantel des Abschirmbehälters integriert ist und in die Wandung des Endlagerbehälters eingreifen kann, wobei die axiale Fixierung mit Hilfe eines von außen an ein Bedienelement der Haltevorrichtung des Abschirmbehälters angreifendes Bediengerät aufhebbar ist, und dass der Boden des Abschirmbehälters axial in dessen Mantel verschiebbar ist und eine von außen zugängliche Andockeinrichtung aufweist, an der ein Bediengerät derart angreifen kann, dass es den Boden axial in Richtung der Öffnung derart verschieben kann, dass ein einliegender Endlagerbehälter ausgestoßen wird.The container system of the type mentioned is inventively characterized in that the holding device is integrated in the shell of the Abschirmbehälters and can engage in the wall of the Endlagerbehälters, wherein the axial fixation by means of an attacking from the outside of an operating element of the holding device of the Abschirmbehälters operating device can be canceled and that the bottom of the shielding container is axially displaceable in the shell thereof and has an externally accessible docking device on which an operating device can engage such that it can displace the bottom axially in the direction of the opening such that an enclosed final disposal container is ejected.

Die Haltevorrichtung des erfindungsgemäßen Behältersystems ermöglicht ein einfacheres Fixieren des Endlagerbehälters in dem Abschirmbehälter. Es ist nicht mehr notwendig, umständlich einen Haltering einzuschrauben - die axiale Fixierung kann einfach mit Hilfe eines von außen an ein Bedienelement der Haltevorrichtung des Abschirmbehälters angreifendes Bediengerät eingerastet und auch wieder aufgehoben werden. Die dazu notwendigen Arbeitsschritte sind wesentlich einfacher und können maschinell ausgeführt werden - die gemäß dem Stand der Technik notwendige Einschraubung eines Halterings kann nur umständlich oder gar nicht maschinell durchgeführt werden.The holding device of the container system according to the invention enables a simpler fixing of the repository container in the shielding container. It is no longer necessary to cumbersome screw a retaining ring - the axial fixation can be easily snapped with the help of an attacking from the outside of an operating element of the holding device of the shielding control unit and also canceled. The necessary steps are much easier and can be performed by machine - the necessary according to the prior art screwing a retaining ring can be done only cumbersome or not at all by machine.

Die Ausstoßbarkeit des Endlagerbehälters ermöglicht es, dass der Endlagerbehälter im Endlager selber unproblematisch von dem Abschirmbehälter getrennt wird. Die Ausstoßbarkeit über den Boden des Behältersystems ermöglicht nun eine Trennung des eigentlichen Endlagerbehälters von dem Abschirmbehälter - dieser kann dann wieder aus dem Endlager entfernt und einer weiteren Verwendung zugeführt werden. Da der Endlagerbehälter ausstoßbar ausgebildet ist, ist jederzeit dafür Sorge getragen, dass über den Abschirmbehälter eine ausreichende Abschirmung gegenüber Strahlung zur Verfügung gestellt ist. Vor dem eigentlichen Ausstoßen des Endlagerbehälters wird die axiale Fixierung des Endlagerbehälters in dem Abschirmbehälter mit Hilfe eines von außen an ein Bedienelement der Haltevorrichtung des Abschirmbehälters angreifendes Bediengerät aufgehoben.The ejectability of the repository container allows the repository in the repository itself is easily separated from the shield. The ejectability over the bottom of the container system now allows a separation of the actual repository container from the shield - this can then be removed from the repository and fed to another use. Since the repository container is ejected, care is always taken to ensure that sufficient shielding from radiation is provided via the shielding container. Before the actual ejection of the repository container, the axial fixation of the repository container in the shielding container by means of an externally to an operating element of the holding device lifted the shielding attacking control unit.

Aufgrund der Verschiebbarkeit des Bodens kann die Öffnung des Abschirmbehälters beim Ausstoßen des Endlagerbehälters in Richtung des Endlagerstollens so orientiert sein, dass sich das Bedienpersonal in einem Bereich aufhalten kann, der von dem Abschirmbehälter abgeschirmt ist. Der abschirmende Boden dient gleichzeitig als Schieber zum Ausstoßen des Endlagerbehälters. Die Andockeinrichtung dient dazu, den Boden nach dem Ausstoßen des einliegenden Endlagerbehälters wieder in den Abschirmbehälter zurückziehen zu können. Der verschiebbare Boden gestattet somit ein besonders einfaches Ausstoßen des Endlagerbehälters im Endlagerbereich. Wird der Endlagerbehälter mit Hilfe des Bodens des Abschirmbehälters verschoben, wird mit der gesamten Bodenfläche ausgestoßen. Dies ist vorteilhaft, da die auszustoßenden Endlagerbehälter ein sehr hohes Gewicht aufweisen. Ein Verkanten des Endlagerbehälters beim Ausstoßen kann so effektiv verhindert werden.Due to the displaceability of the bottom, the opening of the shielding container during ejection of the repository container in the direction of Endlagerstollens be oriented so that the operator can stay in a range which is shielded from the shield. The shielding bottom also serves as a slide for ejecting the repository container. The docking device serves to be able to pull the floor back into the shielding container after ejection of the inserted repository container. The sliding floor thus allows a particularly simple ejection of the repository container in the repository area. If the repository container is displaced by means of the bottom of the screening container, it is ejected with the entire bottom surface. This is advantageous because the repository containers to be ejected have a very high weight. Tilting of the repository container during ejection can be effectively prevented.

Um eine Ausstoßbarkeit des Endlagerbehälters zu gewährleisten, können beispielsweise in dem Mantel des Abschirmbehälters geeignete Einrichtungen vorgesehen sein, die den Endlagerbehälter im eigentlichen Endlager aus dem Abschirmbehälter ausstoßen. Vorzugsweise wird die Ausstoßbarkeit jedoch dadurch gewährleistet, dass der Boden des Abschirmbehälters eine von einem Bediengerät derart freigebbare Öffnung aufweist, dass eine Ausstoßeinrichtung durch die Öffnung hindurch auf den Endlagerbehälter einwirken kann. Dieses Ausführungsbeispiel ist konstruktiv sehr einfach gestaltet, so dass vorteilhafterweise keine aufwendigen und kostenintensiven Umgestaltungen des Behältersystems notwendig sind. Auch die zum Ausstoßen notwendige Einrichtung ist konstruktiv einfach und daher kostengünstig und einfach zu handhaben.In order to ensure a dischargeability of the repository container, suitable devices can be provided, for example, in the shell of the shielding container, which eject the repository container in the actual repository from the shielding container. However, the ejection capability is preferably ensured by the fact that the bottom of the shielding container has an opening that can be opened by an operating device in such a way that an ejection device can act on the final-disposal container through the opening. This embodiment is structurally very simple, so that advantageously no costly and costly redesigns of the container system are necessary. The device required for ejection is structurally simple and therefore inexpensive and easy to handle.

Vorzugsweise weist der Abschirmbehälter einen an dem der Öffnung abgewandten Ende des Mantels angesetzten ringförmigen Abschirmkörper auf, wobei der verschiebbare Boden auf einem radial nach innen vorspringenden Bodenabschnitt des Abschirmkörpers aufliegt. Zwischen einem radial innen liegenden Teil der bodenseitigen Stirnfläche des Mantels des Abschirmbehälters und dem angesetzten Abschirmkörper ist vorzugsweise ein umlaufender Spaltraum gebildet, der Elemente der Haltevorrichtung aufnehmen kann. Diese Gestaltung des Abschirmbehälters vereinfacht die Konstruktion bei Gewährleistung maximaler Abschirmung.The shielding container preferably has an annular shielding body attached to the end of the jacket facing away from the opening, wherein the displaceable bottom rests on a radially inwardly projecting bottom section of the shielding body. Between a radially inner part the bottom-side end face of the shell of the shielding container and the attached shielding body is preferably formed a circumferential gap space, which can accommodate elements of the holding device. This design of the shielding container simplifies the construction while ensuring maximum shielding.

Bei einem bevorzugten Ausführungsbeispiel ist der Primärdeckel des Deckelsystems des Endlagerbehälters mechanisch und abschirmungsmäßig derart dimensioniert, dass er selbstabschirmend ist und die mechanischen Anforderungen im Endlager und die Abschirmanforderungen für die Handhabung und den Transport des Behältersystems nach dem Verschließen der Beladeöffnung durch den Primärdeckel erfüllt sind, ohne dass die Öffnung des Abschirmbehälters eine zusätzliche Abschirm- und Verschlussvorrichtung benötigt.In a preferred embodiment, the primary lid of the lid system of the final storage container is mechanically and shieldingly dimensioned to be self-shielding and meet the mechanical requirements in the repository and the shielding requirements for handling and transporting the container system after closure of the loading opening by the primary lid, without the opening of the shielding container requires an additional shielding and closing device.

Ein entsprechendes Ausführungsbeispiel ermöglicht den Wegfall des Schutzdeckels des Abschirmbehälters sowie der temporären Abschirmungen. Mit dem Wegfall dieser Vorrichtungen fallen die Arbeitsschritte des Auflegens und Wieder-Entfernens der Abschirmungen weg. Der Befüllvorgang wird erheblich verkürzt und vereinfacht.A corresponding embodiment makes it possible to omit the protective cover of the shielding container and the temporary shields. With the elimination of these devices, the steps of applying and re-removing the shields fall away. The filling process is considerably shortened and simplified.

Zum Endlagern radioaktiven Abfalls mit Hilfe dieser bevorzugten Ausführungsform wird das Behältersystem zunächst vorbereitet, indem ein Endlagerbehälter in einen (oben offenen) Abschirmbehälter eingesetzt wird. Dann wird die Haltevorrichtung derart betätigt, dass der Endlagerbehälter in dem Abschirmbehälter axial fixiert (gehalten) wird. Das Behältersystem wird an die Heiße Zelle angedockt. Anschließend wird in der Heißen Zelle der Primärdeckel abgenommen, der Endlagerbehälter befüllt und der Primärdeckel wieder aufgesetzt. Danach wird das Behältersystem abgedockt und der Primärdeckel kann verschraubt werden, ohne dass es einer zusätzlichen Abschirmung bedarf. Anschließend kann ggf. ein Sekundärdeckel aufgeschweißt werden, wobei dies wiederum ohne zusätzliche Abschirmmaßnahmen vorgenommen werden kann. Das Behältersystem wird nunmehr zwischengelagert und vorzugsweise liegend zum Endlager transportiert. Im Endlagerbereich, beispielsweise im Endlagerstollen, wird die Arretierung der Haltevorrichtung gelöst und der Endlagerbehälter durch die Öffnung des Abschirmbehälters ausgestoßen und gelagert. Der leere Abschirmbehälter wird zu dem Beladeplatz zurückgeführt und kann für die Aufnahme eines weiteren Endlagerbehälters vorbereitet werden.For disposal of radioactive waste using this preferred embodiment, the container system is first prepared by a repository container is inserted into a (open-topped) shielding container. Then, the holding device is operated such that the final storage container is axially fixed (held) in the shielding container. The container system is docked to the hot cell. Subsequently, the primary lid is removed in the hot cell, filled the repository container and the primary lid put back on. Thereafter, the container system is undocked and the primary lid can be bolted without the need for additional shielding. Subsequently, if necessary, a secondary lid can be welded on, which in turn can be carried out without additional shielding measures. The container system is now stored and preferably transported lying to the repository. In the repository area, for example in the repository tunnel, the locking of the holding device is released and the repository container ejected through the opening of the Abschirmbehälters and stored. The empty shielding container is returned to the loading station and can be prepared for receiving a further repository container.

Vorzugsweise weist die Wandung des Endlagerbehälters wenigstens eine Ausnehmung auf, in die die Haltevorrichtung des Endlagerbehälters eingreifen kann. Die Ausnehmung gestattet ein sicheres formschlüssiges Eingreifen eines Elements der Haltevorrichtung. Die Ausnehmung ist vorzugsweise an dem der Beladeöffnung abgewandten Ende vertikal unterhalb der Ebene der Innenfläche des Bodens des Endlagerbehälters angeordnet. Diese Anordnung der Ausnehmung erleichtert die Abschirmung, da die mit der Ausnehmung verbundene Verringerung der Wandstärke des Endlagerbehälters in einem Bereich unterhalb der eingelagerten radioaktiven Abfälle ausgeführt ist. Die Ausnehmung befindet sich möglichst nahe am Boden des Endlagerbehälters.Preferably, the wall of the repository container has at least one recess into which the holding device of the repository container can engage. The recess allows a secure positive engagement of an element of the holding device. The recess is preferably arranged at the end facing away from the loading opening vertically below the plane of the inner surface of the bottom of the repository container. This arrangement of the recess facilitates the shield, since the associated reduction of the wall thickness of the repository container is carried out in a region below the stored radioactive waste. The recess is located as close to the bottom of the repository container.

Die Ausnehmung ist vorzugsweise eine in der Wandung des Endlagerbehälters umlaufende Nut, in die Schwenksegmente der Haltevorrichtung in radialer Richtung eingreifen können. Die Schwenksegmente sind vorzugsweise äquidistant in Umfangsrichtung angeordnet. Beispielsweise werden fünf Schwenksegmente eingesetzt, die in einem Ringspalt des Abschirmbehälters in der Nähe des Bodens des Endlagerbehälters angeordnet sind und bei Betätigung durch einen Stellring in radialer Richtung nach innen in die umlaufende Nut des Endlagerbehälters eingeschoben werden. Eine derartige Anordnung gestattet eine Aufnahme des Endlagerbehälters unabhängig von seiner Drehposition im Abschirmbehälter. Darüber hinaus können in dem Abschirmbehälter mehr oder weniger Schwenksegmente angeordnet werden, ohne dass es einer abweichenden Gestaltung der umlaufenden Nut des Endlagerbehälters bedarf.The recess is preferably a circumferential groove in the wall of the repository container, can engage in the pivot segments of the holding device in the radial direction. The pivot segments are preferably arranged equidistantly in the circumferential direction. For example, five pivot segments are used, which are arranged in an annular gap of the shielding in the vicinity of the bottom of the repository container and are pushed in actuation by a collar in the radial direction inwards into the circumferential groove of the repository container. Such an arrangement allows a receptacle of the repository container regardless of its rotational position in the shielding. In addition, more or less pivot segments can be arranged in the shielding container, without the need for a different design of the circumferential groove of the repository container.

Bei einer - weniger bevorzugten - alternativen Ausführungsform wird die wenigstens eine Ausnehmung des Endlagerbehälters von einer umlaufenden Nut und mehreren entlang des Umfangs verteilten zahnförmigen Ausnehmungen zwischen der umlaufenden Nut und dem Boden des Endlagerbehälters gebildet, wobei die Haltevorrichtung an die Form der zahnförmigen Ausnehmungen angepaßte zahnförmige Vorsprünge aufweist, die in der Art eines Bajonettverschlusses in axialer Richtung zwischen die zahnförmigen Ausnehmungen des Endlagerbehälters hindurch in die umlaufende Nut eingeschoben und in der umlaufenden Nut in Umfangsrichtung hinter die zwischen den zahnförmigen Ausnehmungen verbliebenen Vorsprünge des Endlagerbehälters gedreht werden können. Bei dieser Haltevorrichtung in Form eines Bajonettverschlusses ist es erforderlich, dass die Anzahl, Breite und Anordnung der zahnförmigen Vorsprünge des Endlagerbehälters und der Haltevorrichtung aufeinander angestimmt sind. Außerdem muß der Endlagerbehälter in einer vorgegebenen Drehposition in den Abschirmbehälter eingeschoben werden, weshalb ggf. eine axiale Nut oder ein axialer Vorsprung am Endlagerbehälter und entsprechende Vorsprünge bzw. Nuten in der Innenwandung des Abschirmbehälters vorzusehen sind.In a - less preferred - alternative embodiment, the at least one recess of the repository container is formed by a circumferential groove and a plurality of circumferentially distributed tooth-shaped recesses between the circumferential groove and the bottom of the repository container the holding device has adapted to the shape of the tooth-shaped recesses tooth-shaped projections which inserted in the manner of a bayonet lock in the axial direction between the tooth-shaped recesses of the repository container into the circumferential groove and in the circumferential groove in the circumferential direction behind the remaining between the tooth-shaped recesses protrusions Repository can be rotated. In this holding device in the form of a bayonet closure, it is necessary that the number, width and arrangement of the tooth-shaped projections of the repository container and the holding device are matched to each other. In addition, the repository container must be inserted in a predetermined rotational position in the shield, so possibly an axial groove or an axial projection on the repository container and corresponding projections or grooves are provided in the inner wall of the shield.

Der erfindungsgemäß in seiner Abschirmung verstärkte Primärdeckel enthält vorzugsweise eine Moderatorschicht. Der Primärdeckel ist ferner vorzugsweise einschraubbar und weist eine Metalldichtung und/oder Elastomerdichtung zur Wandung des Endlagerbehälters auf.The primary cover reinforced according to the invention in its shielding preferably contains a moderator layer. The primary cover is also preferably screwed and has a metal seal and / or elastomeric seal to the wall of the repository container.

Vorteilhafte und/oder bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous and / or preferred developments of the invention are characterized in the subclaims.

Nachfolgend wird die Erfindung anhand von in den Zeichnungen dargestellten bevorzugten Ausführungsformen näher erläutert. In den Zeichnungen zeigen:

  • Figur 1 eine schematische Abbildung des bekannten Pollux-Behältersystems;
  • Figuren 2A bis 2D verschiedene Ansichten und Detailansichten einer ersten Ausführungsform des erfindungsgemäßen Behältersystems;
  • Figuren 3A bis 3D zeigen schematische Ansichten und Detailansichten einer zweiten Ausführungsform des erfindungsgemäßen Behältersystems.
The invention will be explained in more detail with reference to preferred embodiments shown in the drawings. In the drawings show:
  • FIG. 1 a schematic illustration of the known Pollux container system;
  • FIGS. 2A to 2D different views and detailed views of a first embodiment of the container system according to the invention;
  • FIGS. 3A to 3D show schematic views and detailed views of a second embodiment of the container system according to the invention.

Figur 1 zeigt eine schematische Abbildung des bekannten Pollux-Behältersystems. Das Behältersystem weist einen äußeren zylinderförmigen Abschirmbehälter (1) sowie einen ebenfalls zylinderförmigen inneren Behälter (3) zur Aufnahme des zu lagernden Materials auf. FIG. 1 shows a schematic illustration of the known Pollux container system. The container system has an outer cylindrical shielding container (1) and also one cylindrical inner container (3) for receiving the material to be stored.

Der innere Behälter (3) besteht aus einem korrosionsfesten und mechanisch stabilen Material und ist im geschlossenen Zustand mit einem Deckelsystem abgedichtet. Dieses besteht aus einem mittels Bolzenschrauben gasdicht verschraubbaren Primärdeckel (4) sowie einer zwischen Primärdeckel (4) und dem zu lagernden Material angeordneten, aus Graphit bestehenden Moderatorplatte (8). Oberhalb des Primärdeckels (4) ist ein Sekundärdeckel (5) angeordnet, wobei sich bei dessen Verschweißung zwischen dem Grundkörper des inneren Behälters (3) und dem Sekundärdeckel (5) eine Schweißnaht (6) ausbildet. Auf den Sekundärdeckel (5) ist eine Dämpfung (7) aufgelegt.The inner container (3) consists of a corrosion-resistant and mechanically stable material and is sealed in the closed state with a lid system. This consists of a gas-tight screwed by means of bolts screws primary cover (4) and arranged between primary cover (4) and the material to be stored, consisting of graphite moderator (8). Above the primary cover (4), a secondary cover (5) is arranged, with its welding between the base body of the inner container (3) and the secondary cover (5), a weld (6) is formed. On the secondary cover (5) a damping (7) is launched.

Der Abschirmbehälter (1) weist im geschlossenen Zustand einen einschraubbaren Schutzdeckel mit Abschirmfunktion (2) sowie an der zylindrischen Mantelfläche des Abschirmbehälters (1) eine Mehrzahl von Tragzapfen (11) auf. Der Abschirmbehälter (1) ist mit einer Mehrzahl von axial angeordneten Bohrungen versehen, in welche Moderatorstäbe (9) eingesetzt sind. Diese Bohrungen und die Moderatorstäbe (9) erstrecken sich im Wesentlichen über die gesamte Höhe des Abschirmbehälters (1).The shielding container (1) has a screw-in protective cover with a shielding function (2) in the closed state, and a plurality of supporting pins (11) on the cylindrical jacket surface of the shielding container (1). The shielding container (1) is provided with a plurality of axially arranged bores in which moderator rods (9) are inserted. These holes and the moderator rods (9) extend substantially over the entire height of the shielding container (1).

Die Figuren 2A bis 2D zeigen verschiedene Ansichten einer ersten Ausführungsform des erfindungsgemäßen Behältersystems. Figur 2A zeigt eine Schnittansicht des erfindungsgemäßen Behältersystems. Figur 2D zeigt eine Seitenansicht der ersten Ausführungsform, wobei der Abschirmbehälter (30) teilweise weggeschnitten ist. Das Behältersystem weist einen Endlagerbehälter (20) zylindrischer Gestalt sowie einen den Endlagerbehälter (20) aufnehmenden Abschirmbehälter (30) auf.The FIGS. 2A to 2D show different views of a first embodiment of the container system according to the invention. FIG. 2A shows a sectional view of the container system according to the invention. FIG. 2D shows a side view of the first embodiment, wherein the shielding container (30) is partially cut away. The container system has a repository container (20) of cylindrical shape and a repository container (20) receiving shielding container (30).

Der Endlagerbehälter (20) weist einen zylinderförmigen Mantel, eine an einer Stirnfläche angeordnete, mit einem Deckelsystem verschließbare Beladeöffnung sowie einen Boden (22) auf. Die Wanddicke des zylinderförmigen Mantels und des Bodens (22) des Endlagerbehälters (20) ist entsprechend den mechanischen Anforderungen im Endlager sowie der Standzeit in der korrodierenden Endlagerumgebung ausgelegt. Die Dichtflächen des Endlagerbehälters (20) sind mechanisch bearbeitet, und die Oberflächen des Endlagerbehälters (20) können mit einem Korrosionsschutz versehen sein. Der untere Mantelbereich des Endlagerbehälters (20) ist mit einer umlaufenden Nut (23) versehen (siehe hierzu insbesondere Figur 2C), in welche zur axialen Fixierung des Endlagerbehälters (20) in dem Abschirmbehälter (30) eine Haltevorrichtung (24 - 28) eingreifen kann. Bei dem Ausführungsbeispiel gemäß den Figuren 2A bis 2D ist diese Haltevorrichtung (24 - 28) als Segmentverschluß ausgebildet.The disposal container (20) has a cylindrical jacket, a loading opening which is arranged on an end face and can be closed with a cover system, and a base (22). The wall thickness of the cylindrical shell and the bottom (22) of the repository container (20) is designed according to the mechanical requirements in the repository and the life in the corroding repository environment. The sealing surfaces of the repository container (20) are machined, and the Surfaces of the repository container (20) can be provided with a corrosion protection. The lower shell region of the repository container (20) is provided with a circumferential groove (23) (see in particular Figure 2C ), in which for the axial fixation of the repository container (20) in the shielding container (30) a holding device (24 - 28) can engage. In the embodiment according to the FIGS. 2A to 2D this holding device (24 - 28) is designed as a segment closure.

Figur 2B zeigt eine Schnittansicht entlang der Linie B-B (Figur 2A) und veranschaulichen den Aufbau der Haltevorrichtung (24 - 28). FIG. 2B shows a sectional view along the line BB ( FIG. 2A ) and illustrate the structure of the holding device (24 - 28).

Die Haltevorrichtung weist einen Stellring (24) mit Führungsnuten (24a) und Distanzstücken (28) auf, wobei der Stellring (24) innen an dem Mantel des Abschirmbehälters (30) anliegt. In jede der Führungsnuten (24a) ragt ein Verstellzapfen des zugehörigen Schwenksegementes (25) ein. Jedes Schwenksegment (25) verfügt über einen Schwenksegment-Drehpunkt (27), so dass durch Rotation des Stellrings (24) und die über die Nut (23) erzwungene Bewegung der Verstellzapfen die Schwenksegmente entweder nach innen oder nach außen geschwenkt werden. Zur Handhabung des Verschlusses, d.h. zum Öffnen und Schließen und damit zum Fixieren bzw. Lösen des Endlagerbehälters (20) in dem Abschirmbehälter (30), weist der Stellring (24) zwei Bedienelemente (26) auf, die als abnehmbare Hebel ausgebildet sind und sich u.a. durch eine Ausnehmung in der Wandung des Abschirmbehälters (30) erstrecken und somit von außen bedienbar sind. In der geöffneten Stellung greifen die Schwenksegmente (25) nicht in die Nut (23) im Mantel des Endlagerbehälters (20) ein, so dass dieser aus dem Abschirmbehälter (30) entnehmbar ist. Bei Bewegung der Hebel (26) in die Geschlossen-Stellung schwenken die Schwenksegmente (25) in radialer Richtung nach innen in die umlaufende Nut (23) in dem Endlagerbehälter (20) ein, wodurch dieser axial in dem Abschirmbehälter (30) fixiert wird. Dies ist insbesondere unter sicherheitstechnischen Aspekten relevant: Kippt das Behältersystem bei der Beladung, kann der Endlagerbehälter (20) nicht aus dem Abschirmbehälter (30) rutschen und eine Gefährdung des Bedienpersonal wird vermieden. Die Ausbildung der Haltevorrichtung als Segmentverschluß hat den Vorteil, dass die Aufnahme des Endlagerbehälters (20) in dem Abschirmbehälter (30) unabhängig von seiner Drehposition im Abschirmbehälter (30) ist. Ferner können in dem Abschirmbehälter (30), je nach mechanischer Anforderung, eine unterschiedliche Anzahl von Schwenksegmenten (25) angeordnet werden, ohne dass es einer abweichenden Gestaltung der umlaufenden Nut (23) des Endlagerbehälters (20) bedarf.The holding device has an adjusting ring (24) with guide grooves (24a) and spacers (28), wherein the adjusting ring (24) rests on the inside of the jacket of the shielding container (30). In each of the guide grooves (24a) projects an adjusting pin of the associated Schwenksegementes (25). Each pivoting segment (25) has a pivoting segment pivot point (27), so that by rotation of the adjusting ring (24) and the movement of the adjustment pins forced via the groove (23), the pivoting segments are pivoted either inwardly or outwardly. For handling the closure, ie for opening and closing and thus for fixing or releasing the repository container (20) in the shielding container (30), the adjusting ring (24) on two operating elements (26), which are designed as removable lever and extend through a recess in the wall of the Abschirmbehälters (30) and thus are externally operable. In the open position, the pivot segments (25) do not engage in the groove (23) in the shell of the repository container (20) so that it can be removed from the screening container (30). Upon movement of the lever (26) in the closed position, the pivot segments (25) in the radial direction inwardly into the circumferential groove (23) in the repository container (20), whereby it is fixed axially in the shielding container (30). This is particularly relevant under safety aspects: If the container system tilts during loading, the repository container (20) can not slip out of the screening container (30) and endanger the operating personnel is avoided. The design of the holding device as a segment closure has the advantage that the receptacle of the final storage container (20) in the shielding container (30) is independent of its rotational position in the shielding container (30). Furthermore, a different number of pivot segments (25) can be arranged in the shielding container (30), depending on the mechanical requirement, without requiring a deviating configuration of the circumferential groove (23) of the final storage container (20).

Es wird insbesondere Bezug genommen auf die Figuren 2A und 2C. Der Abschirmbehälter (30) ist ein nach oben hin offener, dickwandiger, zylindrischer metallischer Körper (z. B. aus Sphäroguss) mit einem angeflanschten ringförmigen Abschirmkörper (31). Der angeflanschte Abschirmkörper (31) weist einen radial nach innen vorspringenden Bodenabschnitt (31a) auf, auf dem der Boden (34) des Abschirmbehälters (30) aufliegt. Der Boden (34) ist nicht an dem angeflanschten Abschirmkörper (31) befestigt, sondern vielmehr derart ausgebildet, dass er in dem Abschirmbehälter (30) axial bewegt werden kann, so dass der gesamte Endlagerbehälter (20) aus dem Abschirmbehälter ausschiebbar ist. Dazu ist an dem Boden (34) eine Ausschubstange (35) befestigbar, mit der der Boden (34) in dem Abschirmbehälter bewegt werden kann, wodurch der Endlagerbehälter (20) aus dem Abschirmbehälter geschoben werden kann. Das Ausschieben des Endlagerbehälters (20) aus dem Abschirmbehälter (30) kann dadurch vereinfacht werden, dass die äußere Mantelfläche des Endlagerbehälters (20) und/oder die innere Mantelfläche des Abschirmbehälters (30) mit einer Beschichtung versehen ist, die einen niedrigen Reibwiderstand aufweist bzw. dass in den Abschirmbehälter (30) geeignete Gleitlager oder Gleitkörper (nicht gezeigt) eingebracht sind. Zur Befestigung der Ausschubstange (35) können zum Beispiel in dem Boden (34) Gewindebohrungen vorgesehen sein. Im Endlager selber ermöglicht die Ausschiebbarkeit des Endlagerbehälters (20), dass dieser aus dem waagerecht liegenden Abschirmbehälter (30) geschoben werden kann und anschließend im Endlager verbleibt, wohingegen der Abschirmbehälter (30) wiederverwendet werden kann, wodurch die Kosten der Endlagerung gesenkt werden können.In particular, reference is made to the FIGS. 2A and 2C , The shielding container (30) is an upwardly open, thick-walled, cylindrical metallic body (eg of ductile iron) with a flanged annular shielding body (31). The flanged shielding body (31) has a radially inwardly projecting bottom portion (31a) on which the bottom (34) of the shielding container (30) rests. The bottom (34) is not fixed to the flanged shielding body (31), but rather is formed so as to be axially movable in the shielding container (30) so that the entire repository container (20) can be pushed out of the shielding container. For this purpose, a Ausschubstange (35) can be fastened to the bottom (34), with which the bottom (34) can be moved in the shield, whereby the repository container (20) can be pushed out of the shield. The pushing out of the repository container (20) from the screening container (30) can be simplified by providing the outer surface of the repository container (20) and / or the inner surface of the screening container (30) with a coating which has a low frictional resistance in that suitable sliding bearings or sliding bodies (not shown) are introduced into the shielding container (30). For fixing the Ausschubstange (35) can be provided for example in the bottom (34) threaded holes. In the repository itself allows the Ausschiebbarkeit the repository container (20) that this can be pushed out of the horizontal shielding (30) and then remains in the repository, whereas the shielding container (30) can be reused, whereby the cost of disposal can be reduced.

Auf der äußeren Mantelseite des Abschirmbehälters (30) ist eine mit Blech (33) verkleidete Moderatorschicht (32) aus beispielsweise Polyethylen angebracht. Die dem Endlagerbehälter (20) abgewandte Oberfläche des Bodens (34) des Abschirmbehälters (30) ist mit einer Mehrzahl von in Blech (33a) gekleideten Moderatorelementen (32a) versehen, die beispielsweise ebenfalls Polyethylen aufweisen können. Die Moderatorschicht (32) sowie die Moderatorelemente (32a) sind entsprechend den Anforderungen an die Neutronenabschirmung, die für das jeweils einzulagernde Material notwendig sind, ausgelegt. Die Wandstärke des Abschirmbehälters (30) sowie des Bodens (34) sind entsprechend den Anforderungen an die Gammaabschirmung, die für das jeweils einzulagernde Material notwendig sind, ausgelegt.On the outer shell side of the shielding container (30), a moderator layer (32) of polyethylene, for example, is provided, which is lined with sheet metal (33). The end of the container (20) facing away from the bottom surface (34) of the Abschirmbehälters (30) is provided with a plurality of in sheet metal (33a) moderator elements (32a), which may for example also comprise polyethylene. The moderator layer (32) and the moderator elements (32a) are designed in accordance with the neutron shielding requirements that are necessary for the particular material to be stored. The wall thickness of the shielding container (30) and the bottom (34) are designed in accordance with the requirements of the gamma shield, which are necessary for the material to be stored in each case.

Der Abschirmbehälter (30) weist ferner eine Mehrzahl von Tragzapfen (21) auf, die sich durch Öffnungen in dem Blech (33) und der Moderatorschicht (32) in Ausnehmungen in dem Mantel des Abschirmbehälters (30) erstrecken und in diesen Ausnehmungen befestigt sind. Die Tragzapfen (21) gewährleisten eine gute Transportfähigkeit des Behältersystems.The shielding container (30) further comprises a plurality of support pins (21) which extend through openings in the sheet (33) and the moderator layer (32) in recesses in the shell of the Abschirmbehälters (30) and are secured in these recesses. The trunnions (21) ensure good transportability of the container system.

Zum Verschließen des Endlagerbehälters (20) wird ein System aus einer Mehrzahl von verschiedenen Deckeln verwendet (40 - 42) (siehe dazu Figur 2A). Das Deckelsystem weist einen Primärdeckel (40) mit einer an diesem befestigten Moderatorschicht (41) auf, wobei die Dicke der einzelnen Schichten neben den mechanischen Anforderungen so ausgelegt und optimiert ist, dass die Abschirmanforderungen für die Handhabung und den Transport des Behältersystems nach dem Verschließen der Beladeöffnung durch den Primärdeckel erfüllt sind, ohne dass der Abschirmbehälter eine zusätzliche Abschirm- und Verschlußvorrichtung benötigt. D.h. der Primärdeckel (40) des Endlagerbehälters (20) ist entsprechend der Art und der Intensität der radioaktiven Strahlung der jeweiligen Abfälle so aufgebaut und dimensioniert, dass er selbstabschirmend ist und bei der Handhabung des mit dem Primärdeckel (40) verschlossenen Endlagerbehälters (20) keine zusätzliche, ggf. temporäre, Abschirmung notwendig ist. Der Primärdeckel (40) ist entweder in den Endlagerbehälter (20) einschraubbar oder wird, wie im dargestellten Ausführungsbeispiel, über Bolzen mit dem Endlagerbehälter (20) verschraubt. Um die Dichtheit des Endlagerbehälters (20) nach Einbringung des Primärdeckels (40) zu gewährleisten weist dieser eine (nicht dargestellte) Metalldichtung sowie optional eine zusätzliche (nicht dargestellte) Elastomerdichtung auf.To close the repository container (20), a system of a plurality of different covers is used (40-42) (see FIG. 2A ). The cover system has a primary lid (40) with a moderator layer (41) attached thereto, the thickness of the individual layers being designed and optimized in addition to the mechanical requirements such that the shielding requirements for handling and transporting the container system after closing the container Loading through the primary lid are met, without the shielding needs an additional shielding and closure device. That is, the primary cover (40) of the repository container (20) is constructed and dimensioned according to the type and intensity of the radioactive radiation of the respective waste so that it is self-shielding and in the handling of the closed with the primary lid (40) final storage container (20) no additional, possibly temporary, shielding is necessary. The primary cover (40) can either be screwed into the repository container (20) or, as in the illustrated embodiment, bolted to the repository container (20) via bolts. In order to ensure the tightness of the repository container (20) after introduction of the primary cover (40), this has a (not shown) metal seal and optionally an additional (not shown) elastomeric seal.

Das Deckelsystem umfaßt neben dem Primärdeckel (40) mit Moderatorplatte (41) einen Sekundärdeckel (42), der nach Verschraubung des Endlagerbehälters (20) mit dem Primärdeckel (40) mit dem Grundkörper des Endlagerbehälters (20) verschweißt wird. Nach der Verschweißung des Sekundärdeckels (42) ist vorwiegend dieser für die gasdichte Abdichtung des Endlagerbehälters (20) verantwortlich. Mit anderen Worten, bilden der Endlagerbehälter (20) und der eingeschweißte Sekundärdeckel (42) das dauerhafte Stahlcontainment in korrodierender Umgebung des Endlagers und gewährleisten die Dichtheit, wobei die Wanddicke des Zylindermantels sowie des Bodens (34) des Endlagerbehälters (20) und die des eingebrachten Primärdeckels (40) entsprechend den mechanischen Anforderungen im Endlager ausgebildet sind.The cover system comprises, in addition to the primary cover (40) with moderator plate (41), a secondary cover (42) which is welded to the main body of the repository container (20) after screwing the repository container (20) to the primary cover (40). After the welding of the secondary cover (42), this is mainly responsible for the gas-tight sealing of the repository container (20). In other words, the disposal container (20) and the welded secondary cover (42) form the permanent steel containment in the corrosive environment of the repository and ensure the tightness, the wall thickness of the cylinder jacket and the bottom (34) of the repository container (20) and the introduced Primary cover (40) are formed according to the mechanical requirements in the repository.

Die Figuren 3A bis 3D zeigen verschiedene Ansichten bzw. Detailansichten einer zweiten Ausführungsform des erfindungsgemäßen Behältersystems. Figur 3A zeigt dabei eine Schnittansicht der zweiten Ausführungsform des erfindungsgemäßen Behältersystems. Der Endlagerbehälter (20') entspricht im Wesentlichen dem Endlagerbehälter (20) gemäß dem ersten Ausführungsbeispiel, jedoch ist zur Fixierung des Endlagerbehälters (20') in dem Abschirmbehälter (30') eine andere Haltevorrichtung vorgesehen. Nachfolgend werden lediglich die baulichen Merkmale beschrieben, in denen sich die zweite Ausführungsform von der ersten Ausführungsform gemäß den Figuren 2A bis 2D unterscheidet. Nicht beschriebene Merkmale, beispielsweise der Boden des Abschirmbehälters und das Deckelsystem des Endlagerbehälters, entsprechen denen des ersten Ausführungsbeispiels.The FIGS. 3A to 3D show different views and detailed views of a second embodiment of the container system according to the invention. FIG. 3A shows a sectional view of the second embodiment of the container system according to the invention. The repository container (20 ') corresponds essentially to the repository container (20) according to the first embodiment, however, for fixing the repository container (20') in the Abschirmbehälter (30 ') another holding device is provided. Hereinafter, only the structural features will be described, in which the second embodiment of the first embodiment according to the FIGS. 2A to 2D different. Not described features, such as the bottom of the shielding container and the lid system of the repository container, correspond to those of the first embodiment.

Bei der zweiten Ausführungsform ist die Haltevorrichtung als Bajonettverschluß ausgebildet. Dieser ist insbesondere in Figuren 3B und 3C veranschaulicht. Bei dieser Verschlußvariante weist der Endlagerbehälter (30') eine umlaufende Nut (23') mit mehreren, entlang des Umfangs der Nut (23') verteilten zahnförmigen Ausnehmungen (23a') auf, wobei die Haltevorrichtung an die Form der zahnförmigen Ausnehmungen (23a') angepaßte zahnförmige Vorsprünge (29a') aufweist, die in axialer Richtung zwischen die zahnförmigen Ausnehmungen (23a') des Endlagerbehälters (20') hindurch in die umlaufende Nut (23') eingeschoben und in der umlaufenden Nut (23') in Umfangsrichtung hinter die zwischen den zahnförmigen Ausnehmungen (23a') verbliebenen Vorsprünge (29b') des Endlagerbehälters (20') gedreht werden können. Die zahnförmigen Vorsprünge (29a') sind Teil eines Bajonettringes (29'), an dem abnehmbar zwei Bedienelemente (beispielsweise als Hebel ausgebildet) (26') zur Betätigung des Bajonettverschlusses befestigt sind. Der Bajonettring (29') mit den zahnförmigen Vorsprüngen (29a') bildet somit einen Zahnkranz.In the second embodiment, the holding device is designed as a bayonet closure. This one is especially in FIGS. 3B and 3C illustrated. In this closure variant, the repository container (30 ') has a circumferential groove (23') with a plurality of tooth-shaped recesses (23a ') distributed along the circumference of the groove (23'), wherein the holding device conforms to the shape of the tooth-shaped recesses (23a '). ) adapted tooth-shaped projections (29a '), in the axial direction between the tooth-shaped recesses (23a') of the Endlagerbehälters (20 ') inserted into the circumferential groove (23') and in the circumferential groove (23 ') in the circumferential direction behind the projections (29b ') remaining between the tooth-shaped recesses (23a') of the repository container (20 ') can be rotated. The tooth-shaped projections (29a ') are part of a bayonet ring (29') on which removably two operating elements (for example designed as a lever) (26 ') are fastened for actuating the bayonet closure. The bayonet ring (29 ') with the tooth-shaped projections (29a') thus forms a sprocket.

Die als Hebel ausgebildeten Bedienelemente (26') erstrecken sich durch den Abschirmbehälter (30') sowie die an dem Abschirmbehälter angebrachte Moderatorschicht (32') und das die Moderatorschicht abdeckende Blech (33') hindurch und sind dadurch von außen betätigbar.The operating elements (26 ') designed as levers extend through the shielding container (30') and the moderator layer (32 ') attached to the shielding container and the metal sheet (33') covering the moderator layer and can thereby be actuated from the outside.

Bei der Haltevorrichtung in Form eines Bajonettverschlusses ist es erforderlich, dass die Anzahl, Breite und Anordnung der zahnförmigen Vorsprünge (29b') des Endlagerbehälters (20') und der Haltevorrichtung aufeinander abgestimmt sind. Außerdem muß der Endlagerbehälter (20') in einer vorgegebenen Drehposition in den Abschirmbehälter (30') eingeschoben werden, weshalb optional eine axiale Nut oder ein axialer Vorsprung am Endlagerbehälter (30') und entsprechende Vorsprünge bzw. Nuten in der Innenwandung des Abschirmbehälters (30') vorgesehen werden können. Beispielsweise sind eine Nut (35') in dem Abschirmbehälter (30') und eine Nut (34') in dem Endlagerbehälter (20') mit einer Passfeder (36') verbunden.In the holding device in the form of a bayonet closure, it is necessary that the number, width and arrangement of the tooth-shaped projections (29b ') of the repository container (20') and the holding device are coordinated. In addition, the repository container (20 ') in a predetermined rotational position in the shielding container (30') must be inserted, which is why an optional axial groove or an axial projection on the repository container (30 ') and corresponding projections or grooves in the inner wall of the Abschirmbehälters (30 ') can be provided. For example, a groove (35 ') in the shielding container (30') and a groove (34 ') in the disposal container (20') are connected to a key (36 ').

Claims (12)

  1. Container system for receiving radioactive waste with an end storage container (20) of cylindrical form and a shielding container (30) receiving the end storage container,
    wherein the end storage container (20) has a mechanically stable and a corrosion-resistant wall and a charging opening, which is arranged at an end face and which is closable by a lid system comprising at least one primary lid (40),
    wherein the shielding container (30) has a base (34), a cylindrical casing and an opening, wherein the end storage container (20) is insertable through the opening in axial direction,
    wherein the opening of the shielding container (30) is so constructed that the end storage container (20) closed by the lid system is ejectable through the charging opening, and
    wherein a holding device (24 to 28) for axial fixing of the end storage container (20) received in the shielding container (30) is provided,
    characterised in that
    the holding device (24 to 28) is integrated in the casing of the shielding container (30) and can engage in the wall of the end storage container (20), wherein the axial fixing can be cancelled with the help of an operating apparatus engaging from outside at an operating element of the holding device (24 to 28) of the shielding container (30), and the base (34) of the shielding container (30) is axially displaceable in the casing thereof and has a docking device which is accessible from outside and at which an operating apparatus can engage in such a manner that it can so displace the base (34) axially in direction of the opening that an end storage container (20) lying within is ejected.
  2. Container system according to claim 1, characterised in that the base (34) of the shielding container (30) has an opening which can be freed by an operating apparatus in such a manner that an ejecting device can act on the end storage container (20) through the opening.
  3. Container system according to claim 1, characterised in that the shielding container (30) comprises an annular shielding body (31) placed on the end of the casing remote from the opening, wherein the displaceable base (34) rests on a radially inwardly projecting base section (31 a) of the shielding body (31).
  4. Container system according to claim 3, characterised in that an encircling gap space, which can receive elements of the holding device, is formed between a radially inwardly disposed part of the end surface of the casing of the shielding container (30) at the base side and the fitted shielding body (31).
  5. Container system according to any one of claims 1 to 4, characterised in that the primary lid (40) of the lid system of the end storage container (20) is so dimensioned mechanically and in terms of shielding that it is self-shielding and the mechanical demands in the end storage and the shielding demands for the handling and transport of the container system after closing of the charging opening are fulfilled by the primary lid (40) without the opening of the shielding container (30) needing an additional shielding and closure device.
  6. Container system according to any one of claims 1 to 5, characterised in that the wall of the end storage container (20) has at least one recess (23) in which the holding device (24 to 28) for the end storage container (20) can engage.
  7. Container system according to claim 6, characterised in that the at least one recess (23) is arranged in the wall of the end storage container (20) at the end, which is remote from the charging opening, vertically below the plane of the inner surface of the base (22) of the end storage container (20).
  8. Container system according to claim 7, characterised in that the recess (23) is a groove, which encircles in the wall of the end storage container and into which the pivot segments of the holding device (24 to 28) can engage in radial direction.
  9. Container system according to claim 7, characterised in that the at least one recess is formed by an encircling groove (23') and several tooth-shaped recesses (23a'), which are distributed along the circumference, between the encircling groove (23') and the base of the end storage container, wherein the holding device (24 to 28) has tooth-shaped projections (29a'), which are matched to the shape of the tooth-shaped recesses (23a') and which can be pushed through in the manner of a bayonet coupling in axial direction between the tooth-shaped recesses (23a') into the encircling groove (23') and turned in the encircling groove (23') in circumferential direction behind the projections, which remain between the tooth-shaped recesses (23a'), of the end storage container (20').
  10. Container system according to any one of claims 1 to 9, characterised in that the primary lid (40) comprises a moderator layer (41).
  11. Container system according to any one of claims 1 to 10, characterised in that the primary lid (40) is screwable and has a metal seal and/or an elastomeric seal with respect to the wall of the end storage container (20).
  12. Container system according to any one of claims 1 to 11, characterised in that the end storage container (20) additionally comprises a corrosion-resistant secondary lid (42) able to be gas-tightly welded in place.
EP08153917A 2007-04-02 2008-04-01 Container system for receiving radioactive waste Not-in-force EP1978530B1 (en)

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DE102007016141A DE102007016141A1 (en) 2007-04-02 2007-04-02 Container system for receiving radioactive waste

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EP1978530A1 EP1978530A1 (en) 2008-10-08
EP1978530B1 true EP1978530B1 (en) 2011-01-26

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BE1021571B1 (en) 2013-03-13 2015-12-14 Cockerill Maintenance & Ingeniere S.A. INTEGRATED SYSTEM FOR THE CONSTRUCTION AND TRANSPORT OF PACKAGING ASSEMBLIES AND THEIR ASSEMBLY, FILLING AND DISASSEMBLING STATIONS
CN113161031B (en) * 2021-04-26 2022-02-11 中国核动力研究设计院 Buffer frame for cylindrical transport container

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DE3610862A1 (en) * 1986-04-01 1987-10-08 Kernforschungsz Karlsruhe LENGTH CYLINDRICAL CONTAINER FOR THE FINAL STORAGE OF ONE OR MORE CHILLERS FILLED WITH HIGH RADIOACTIVE WASTE
DE3639653A1 (en) * 1986-11-29 1988-06-23 Wiederaufarbeitung Von Kernbre LID LOCK FOR THE EXTERNAL SHIELDING CONTAINER OF A DOUBLE CONTAINER SYSTEM FOR TRANSPORTING AND STORING RADIOACTIVE WASTE
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DE20209845U1 (en) * 2002-06-25 2002-12-12 Polygro Trading Ag Zug Container system for the transport and storage of highly radioactive materials
DE10228387B4 (en) * 2002-06-25 2014-10-16 Polygro Trading Ag Container system for the transport and storage of highly radioactive materials
DE102004036788B3 (en) * 2004-07-29 2006-03-16 GNS Gesellschaft für Nuklear-Service mbH Transport and/or storage container for radioactive waste e.g. burnt fuel component, has wedge ring component supporting with its lower side in top side of primary cover and supporting with its top side in cover of groove

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EP1978530A1 (en) 2008-10-08
DE102007016141A1 (en) 2008-10-09
DE502008002441D1 (en) 2011-03-10

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