EP0129782B1 - Dispositif de protection et de manutention des conteneurs de substances radioactives - Google Patents

Dispositif de protection et de manutention des conteneurs de substances radioactives Download PDF

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Publication number
EP0129782B1
EP0129782B1 EP84106786A EP84106786A EP0129782B1 EP 0129782 B1 EP0129782 B1 EP 0129782B1 EP 84106786 A EP84106786 A EP 84106786A EP 84106786 A EP84106786 A EP 84106786A EP 0129782 B1 EP0129782 B1 EP 0129782B1
Authority
EP
European Patent Office
Prior art keywords
pot
protective pot
cover
edge protective
storage
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.)
Expired
Application number
EP84106786A
Other languages
German (de)
English (en)
Other versions
EP0129782A1 (fr
Inventor
Werner Dipl.-Ing. Botzem
Heinrich Dipl.-Ing. Quillmann
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.)
Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
Nukem GmbH
Original Assignee
Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
Nukem GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH, Nukem GmbH filed Critical Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
Publication of EP0129782A1 publication Critical patent/EP0129782A1/fr
Application granted granted Critical
Publication of EP0129782B1 publication Critical patent/EP0129782B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • G21F5/14—Devices for handling containers or shipping-casks, e.g. transporting devices loading and unloading, filling of containers
    • 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
    • G21F5/08—Shock-absorbers, e.g. impact buffers for containers

Definitions

  • the invention relates to a device for handling and protecting a storage container for radioactive materials provided with a shock-sensitive corrosion protection cover, in particular a shock-sensitive final storage container closed with a lid, during final storage in boreholes of geological formations.
  • Radioactive substances e.g. Radioactive waste generated during the reprocessing of nuclear fuel elements is first stored temporarily after conditioning and then stored in suitable geological formations opposite the biosphere.
  • the radioactive substances are packed in round or square storage containers, for example in closed containers or in monolithic pressed bodies in which the radioactive substances are embedded.
  • the storage containers must withstand long-term corrosion. Therefore, metallic containers are often provided with a corrosion protection layer made of a non-metallic material, e.g. Ceramics. Some of the containers consist entirely or predominantly of ceramic material, such as aluminum oxide.
  • monolithic graphite compacts are also intended for final storage.
  • the corrosion protection layer coatings used are very sensitive to impact and must be protected against damage during handling and against mechanical effects during storage. This applies especially to the particularly endangered edge areas of the storage containers.
  • damage during handling during transport and during introduction into the final deposit e.g.
  • damage to the corrosion protection layer cannot be ruled out in the first years of final storage, as certain mountain influences in the storage area are possible, especially in the early days after the installation of final repositories, before these come to rest later.
  • the present invention was therefore based on the object of providing a device for handling and protecting a storage container for radioactive substances provided with a shock-sensitive corrosion protection sheath, in particular a shock-sensitive final storage container closed with a lid, during final storage in boreholes of geological formations, which particularly effectively protects shock-sensitive edge areas, is easy to use, optimally utilizes the available storage capacity, is easy to manufacture, saves weight and is cheap.
  • This object has been achieved according to the invention in that it consists of a bottom edge protection pot surrounding the edges in the lower region of the storage container and a cover edge protection pot surrounding the edges in the upper region of the storage unit, and in that the bottom edge protection is releasably connected to a lifting plate provided with supporting devices for a lifting device by lifting rods is, the lifting rods have remote-controlled devices for locking and releasing the lifting rods.
  • the height of the protective wall of the cover edge protection pot is preferably greater than the thickness of the cover of the repository container. This additionally protects the sealing zone between the container body and the lid.
  • the lifting rods are carried out in recesses or bores which are located axially in the protective wall of the cover edge protection pot and are screwed into the protective wall of the base edge protection pot. In this way, the diameter of the device according to the invention can be reduced, the storage volume can be better used and the borehole can be dimensioned smaller.
  • the bottom edge protection pot and / or the top edge protection pot have energy-absorbing elements in the form of shock absorbers.
  • the bottom edge protection pot and the top edge protection pot have a circumferential fillet on the inside at the apex of the angle formed between the respective protective wall and the respective bottom.
  • the round or square storage containers (1) are provided with a shock-sensitive corrosion protection cover (16). They are designed as containers with lids (11) or as graphite blocks, contain radioactive substances (19) and in many cases have a weight of approx. 10-12 tons.
  • the upper area of the storage container (1) is surrounded by a cover edge protection pot (3), this designation this also applies to containers that do not have an actual lid, but are made of pressed material on all sides.
  • the lower area is surrounded by a bottom edge protection pot (2).
  • Lid edge protection pot (3) and bottom edge protection pot (2) can be made of cheap metallic material. Both can be put on the container (1), inserted or directly attached to the storage container (1), for example glued.
  • Bottom edge protection pot (2) and lid edge protection pot (3) are detachably connected to one another via a lifting plate (4) by means of metallic lifting bars (5).
  • the diameter of the lifting bars can be approx. 2 cm.
  • the number of lifting rods (5) depends on the geometry of the storage container (1). In the case of a storage container with a cylindrical geometry, it is advisable to use 3 lifting rods.
  • the lifting rods (5) have an angled section (14) on the foot side, which are latched into recesses (13) in the bottom edge protection pot (2) when handling the storage container (1).
  • the upper part of the lifting rods (5) is rotatably guided through bores (6) which are located in the lifting plate (4) and has elements (7), for example levers, which can be remotely controlled on the head side.
  • the lifting plate (4) is equipped with carrying devices (8), for example with an eyelet for a crane hook or with a gripping mushroom.
  • carrying devices (8) for example with an eyelet for a crane hook or with a gripping mushroom.
  • the lifting rods (5) are released from the recesses (13) by rotating the elements (7) so that the lifting plate (4) with the lifting rods (5) for the next storage container, Repository containers or press blocks can be used while the edge protection pots (2, 3) remain on the stored container (1) and ensure the protection of the particularly sensitive edges even after handling mountain movements.
  • the height of the protective walls (9, 10) of the edge protection pots (2, 3) is selected so that the peripheral regions of the storage container (1), which are also exposed to the rock mechanics, are also protected.
  • the height of the protective wall (9) of the cover edge protection pot (3) is greater than the thickness of the cover (11) in the event that the storage container (1) is a final storage container closed with a cover. As a result, the seal between the container lid (11) and the container body (20) is covered and thus protected. Since usually several storage containers (1) are placed directly on top of one another, it is advantageous if the bottom edge protection pot (2) and / or the top edge protection pot (3) carry energy-consuming elements in the form of shock absorbers (18), for example a honeycomb structure, spring elements or insulating material. This means that even if the storage container is occasionally placed inattentively and hard, a load on the sensitive corrosion protection coating or the graphite matrix of a corresponding pressed storage container can be avoided.
  • shock absorbers (18) for example a honeycomb structure, spring elements or insulating material.
  • edge protection pots (2, 3) In contrast to large-volume transport dampers for transport containers, often weighing over 100 tons, which are designed for large drop heights in the event of an accident, only a slight damping effect is sufficient in the present case, which increases the thickness of the edge protection pots (2, 3) only slightly.
  • the thickness of the edge protection pots (2, 3) per se is normally only 2-5 cm.
  • the lifting rods (5) are carried out in recesses or bores (12) which are located axially in the protective wall (9) of the lid edge protection pot (3) and in the protective wall (10) of the bottom edge protection pot (2) in corresponding threaded holes (15) are screwed in. Since the diameter of the lifting plate (4) can also be reduced in this case, there is the possibility of making the borehole - or in other cases the stack geometry - smaller.
  • the bottom edge protection pot (2) and the top edge protection pot (3) have a circumferential groove (17) on the inside at the apex of the angle formed between the respective protective wall (9, 10) and the respective base.
  • the angle is usually around 90 °, but it can also be slightly larger, i.e. the shape of the edge protector is slightly conical on the inside.
  • the device according to the invention not only represents effective protection of the shock-sensitive corrosion protection material of the storage containers against mechanical damage such as cracks, spalling and breakouts, but is also simple and safe to use. This is of great advantage because of the radioactive content of the storage containers.
  • the device is also easy to manufacture.
  • the edge protection pots can be made of cheap material.
  • the lifting rods (5) are held securely in the bottom edge protection pot (2), although other types of engagement are also possible.
  • the storage capacity in the caverns or boreholes of the rock or salt formations is optimally used, the storage container itself can be designed to save weight, provided that appropriate radiation protection measures are taken during transport and the storage process.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Stackable Containers (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Claims (5)

1. Dispositif pour la manipulation et la protection d'un emballage (20) de stockage, destiné à des substances radioactives (19), pourvu d'une enveloppe protectrice contre la corrosion (16) sensible aux chocs, en particulier d'un récipient de stockage final, sensible aux chocs, fermé par un couvercle (11), manipulation qui s'effectue au cours du stockage final dans des trous de forage pratiqués dans des formations géologiques, dispositif caractérisé en ce qu'il est constitué d'un pot (2) de protection des arêtes du fond entourant les arêtes de la zone inférieure de l'emballage de stockage, et d'un pot (3) de protection des arêtes du couvercle, entourant ces arêtes dans la zone supérieure de l'emballage de stockage, et que le pot (2) de protection des arêtes du fond est relié, de façon amovible, au moyen de barres de levage, à un plateau de levage (4) pourvu d'un système d'accrochage (8) à un apparail de levage, le plateau de levage (4) étant placé au-dessus du pot (3) de protection des arêtes du couvercle, et les barres de levage (5) présentant, en tête, des éléments (7) qui peuvent être commandés à distance, pour bloquer ou libérer les barres de lavage (5).
2. Dispositif suivant la revendication 1, caractérisé en ce que la hauteur de la paroi (9) du pot (3) de protection des arêtes du couvercle est plus grande que l'épaisseur du couvercle (11) du récipient de stockage final (1).
3. Dispositif suivant les revendications 1 et 2, caractérisé en ce que les barres de levage (5) passent dans des évidements ou perforations (12) qui se trouvent axialement dans la paroi protectrice (9) du pot (3) de protection des arêtes du couvercle, et sont vissées dans la paroi (10) du pot (2) de protection des arêtes du fond.
4. Dispositif suivant les revendications 1 à 3, caractérisé en ce que le pot (2) de protection des arêtes du fond et/ou le pot (3) de protection des arêtes du couvercle sont pourvus, sur leurs surfaces extérieures, d'un amortisseur de chocs (18).
5. Dispositif suivant les revendications 1 à 4, caractérisé en ce que le pot (2) de protection des arêtes du fond et le pot (3) de protection des arêtes du couvercle présentent intérieurement, au sommet de l'angle formé entre les parois de protection (9, 10) en question et le fond de chacun d'eux, une gorge (17) circulaire.
EP84106786A 1983-06-24 1984-06-14 Dispositif de protection et de manutention des conteneurs de substances radioactives Expired EP0129782B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322770 1983-06-24
DE3322770A DE3322770C2 (de) 1983-06-24 1983-06-24 Vorrichtung zur Handhabung und zum Schutz von Lagergebinden für radioaktive Stoffe

Publications (2)

Publication Number Publication Date
EP0129782A1 EP0129782A1 (fr) 1985-01-02
EP0129782B1 true EP0129782B1 (fr) 1987-05-13

Family

ID=6202287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106786A Expired EP0129782B1 (fr) 1983-06-24 1984-06-14 Dispositif de protection et de manutention des conteneurs de substances radioactives

Country Status (7)

Country Link
US (1) US4625122A (fr)
EP (1) EP0129782B1 (fr)
JP (1) JPS6018800A (fr)
BR (1) BR8403021A (fr)
CA (1) CA1214288A (fr)
DE (2) DE3322770C2 (fr)
ES (1) ES289722Y (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447278A1 (de) * 1984-12-22 1986-06-26 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Langzeitbestaendige korrosionsschutzumhuellung fuer dicht verschlossene gebinde mit hochradioaktivem inhalt
US4846235A (en) * 1986-01-29 1989-07-11 Halliburton Company Radioactivity shielding transportation assembly
US4869299A (en) * 1986-01-29 1989-09-26 Halliburton Company Radioactivity shielding transportation assembly and method
US4803042A (en) * 1987-11-23 1989-02-07 Westinghouse Electric Corp. Nuclear reactor core component shipping container
US4907717A (en) * 1988-02-18 1990-03-13 Kubofcik Kenneth W Low-level radiation waste management system
US4926046A (en) * 1988-12-12 1990-05-15 Westinghouse Electric Corp. Volumetrically efficient container apparatus
US5016776A (en) * 1989-06-12 1991-05-21 Combustion Engineering, Inc. Nuclear fuel container tamper-proof closure
US5337917A (en) * 1991-10-21 1994-08-16 Sandia Corporation Crash resistant container
GB2286284B (en) * 1994-02-08 1998-02-11 Timothy Hamilton Watts Radioactive waste disposal
JP3205179B2 (ja) * 1994-06-29 2001-09-04 株式会社日立製作所 放射性物質乾式貯蔵設備
US5491345A (en) * 1994-10-03 1996-02-13 Associated Universities, Inc. Sealed vacuum canister and method for pick-up and containment of material
DE10228387B4 (de) * 2002-06-25 2014-10-16 Polygro Trading Ag Behältersystem zum Transport und zur Lagerung hochradioaktiver Materialien
EP1563837A1 (fr) * 2004-02-03 2005-08-17 Ferrer Internacional, S.A. Compositions hypocholesterolemiques comprenant une statine et un médicament antiflatulent
ES2321609T5 (es) * 2004-03-06 2013-03-26 GNS Gesellschaft für Nuklear-Service mbH Contenedor de transporte y/o de almacenamiento para el alojamiento de al menos un elemento radioactivo
EP1908081B1 (fr) * 2005-06-24 2012-10-10 Australian Nuclear Science And Technology Organisation Procédé et appareil permettant d isoler une matière de son environnement de traitement
WO2020131916A1 (fr) * 2018-12-18 2020-06-25 Deep Isolation, Inc. Systèmes et procédés de dépôt de déchets radioactifs
US10878972B2 (en) 2019-02-21 2020-12-29 Deep Isolation, Inc. Hazardous material repository systems and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1226659A (fr) * 1959-02-26 1960-07-15 Soc Indatom Perfectionnements aux récipients destinés à transporter des corps radio-actifs
GB1480742A (en) * 1974-10-01 1977-07-20 Foster Wheeler Power Prod Containers
DE7641191U1 (de) * 1976-12-31 1977-04-07 Gesellschaft Fuer Kernforschung Mbh, 7500 Karlsruhe Transportbehaelter
DE2817545C2 (de) * 1978-04-21 1985-11-28 Brown Boveri Reaktor GmbH, 6800 Mannheim Vorrichtung zum Transport und zur Lagerung längserstreckter Brennelemente
HU179174B (en) * 1979-09-14 1982-08-28 Eroemue Es Halozattervezoe Process and apparatus for transferring and housing radioactive and/or other dangerous materials
FR2479542B1 (fr) * 1980-03-27 1987-08-07 Tech Nles Ste Gle Nouveaux materiaux barrieres utilisables pour le conditionnement des effluents radio-actifs
FR2495817B1 (fr) * 1980-12-06 1988-05-13 Kernforschungsz Karlsruhe Conteneur pour le stockage et le transport d'au moins une coquille remplie de dechets radio-actifs incorpores dans du verre fondu

Also Published As

Publication number Publication date
CA1214288A (fr) 1986-11-18
ES289722U (es) 1986-03-01
DE3322770C2 (de) 1985-10-03
DE3463703D1 (en) 1987-06-19
EP0129782A1 (fr) 1985-01-02
BR8403021A (pt) 1985-05-28
DE3322770A1 (de) 1985-01-10
US4625122A (en) 1986-11-25
ES289722Y (es) 1986-10-01
JPS6018800A (ja) 1985-01-30

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