EP0037312B1 - Conteneur pour le conditionnement des effluents radioactifs - Google Patents

Conteneur pour le conditionnement des effluents radioactifs Download PDF

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Publication number
EP0037312B1
EP0037312B1 EP81400429A EP81400429A EP0037312B1 EP 0037312 B1 EP0037312 B1 EP 0037312B1 EP 81400429 A EP81400429 A EP 81400429A EP 81400429 A EP81400429 A EP 81400429A EP 0037312 B1 EP0037312 B1 EP 0037312B1
Authority
EP
European Patent Office
Prior art keywords
cement
container
asbestos
containers
une
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
EP81400429A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0037312A1 (fr
Inventor
Gérard Mahut
René Pierlas
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.)
Societe Generale pour les Techniques Nouvelles SA SGN
Everite SA
Original Assignee
Societe Generale pour les Techniques Nouvelles SA SGN
Everitube SA
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 Societe Generale pour les Techniques Nouvelles SA SGN, Everitube SA filed Critical Societe Generale pour les Techniques Nouvelles SA SGN
Priority to DE8585100147T priority Critical patent/DE3176989D1/de
Publication of EP0037312A1 publication Critical patent/EP0037312A1/fr
Application granted granted Critical
Publication of EP0037312B1 publication Critical patent/EP0037312B1/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
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling

Definitions

  • the present invention relates to containers used for conditioning effluents and radioactive waste.
  • the effluents will be brought, if they are not already so, in a solid form and they will be coated in a suitable solid matrix capable of withstanding the mechanical, physical or chemical aggressions coming from the radioactive materials themselves. - same or from the outside environment.
  • the effluents dispersed in said solid matrix will be "conditioned” so as to be able to be preserved for more or less long periods which will be necessary for the evolution of the radioactive material (natural decay in particular).
  • the present invention consists in the choice of a suitable material which can be used for the conditioning of radioactive effluents dispersed in a solid matrix.
  • dense asbestos cement that is to say by definition in the present application an asbestos cement with a density greater than 1.75 g / cm 3 ) constitutes the material of choice for the constitution of containers usable for the transport and the storage of radioactive products.
  • the asbestos cement chosen is a material with a high dosage of cement (of the order of 1500 kg per cubic meter), a fine particle size due to the mixture of approximately 85% of cement having approximately 3000 to 4000 cm 2 / g BLAINE specific surface area and approximately 15% asbestos at 20,000 cm 2 / g and a density greater than approximately 1.75 g / cm 3 obtained by applying a strong compression at the head of the forming machine bonding and densification of successive layers of material.
  • the values given above are average values.
  • German patent DE-B-1 136 261 describes the use of a refractory binder material of complex composition (based on calcium sulphate) mixed with asbestos, but does not describe the use of a dense asbestos-cement as in the present application.
  • French patent FR-A-1 347 402 describes the use of a filling material which consists of fibers impregnated with an adhesive and then compressed in the space between two containers; the material used in French patent FR-A-1 347 402 is therefore not asbestos-cement with a density greater than 1.75 as in the present application and does not play the same role with respect to radiation.
  • Dense asbestos-cement can be used for the production of "containers" intended for transport and / or storage (in particular buried radioactive effluents dispersed in a solid matrix, said radioactive effluents being effluents coming directly from industrial nuclear installations or from intermediate storage facilities.
  • the present invention therefore relates to a: container of cylindrical shape, for the sealed packaging of radioactive waste, comprising a side wall and near each of the ends, a bottom and a cover, characterized in that it consists of asbestos- dense cement, with a density greater than 1.75 g / cm 3 , that the bottom is a dense asbestos-cement plate held in place in a fastening device by a soft plastic material and that a layer of micro-concrete is poured onto this so-called dense asbestos-cement plate on the inside of the container.
  • the containers will be made from dense asbestos-cement tubes according to the invention; for this, one end of said tubes will be provided with a bottom of the same nature as the tube and hooking means in the form of a groove at the other end, said hooking means being intended to keep a cover closed.
  • these containers are intended to be closed at their two ends by means of a "plug"; one of these fillings can advantageously be made in the factory, so that the container is delivered with a plug and an open end.
  • e plug is advantageously made by pouring, in line with the attachment device or devices formed in the internal face of the pipe, a layer of microbeton the thickness of which is between 50 and 100 mm.
  • the micro-concrete is perfectly compatible in its properties with asbestos-cement and adheres well to the pipe thanks to the attachment device.
  • the rod in silicone sealant or equivalent material, placed in the attachment device prevents any possible entry of water between the shell of the dense asbestos-cement container and the part of the stopper formed by micro-concrete, which may result from the very slight withdrawal of the latter.
  • the external surface of said micro-concrete is advantageously constituted by a dense asbestos-cement plate which is glued to the pipe, in particular using said chamfer before pouring the micro-concrete. It is possibly possible to perfect the gas-tightness of containers of this type by using along the contiguous parts (between the micro-concrete and the pipe and between the micro-concrete, the pipe and the external asbestos-cement plate) materials such as tars, pitch, plastic resins, etc.
  • the first consists in performing a direct filling either with an active mix containing the waste to be conditioned, or with an inactive coating product after having previously disposed of the solid waste in a minimum volume inside the container.
  • the second consists in fact of a repackaging of waste previously placed in containers of the type of those already used previously, in particular of cylindrical shape with thin wall of steel or plastic.
  • the interior dimensions of the asbestos-cement containers will then be determined in such a way that there is a clearance of the order of 0.5 to 2 cm between the exterior of the container to be reconditioned and the interior of the container. in dense asbestos cement.
  • This interval is intended to facilitate the installation of the first container, the envelope of which cannot be considered as a barrier and also to allow pouring into the free space a fluid material which will fill all the spaces remaining free and which will solidify either by polymerization, either by cooling (for example, polyester or epoxy resins, bitumen or pitch can be used).
  • This second embodiment makes it possible to superimpose several drums in an asbestos-cement container (the length of which can then advantageously correspond to the standard length of the pipe elements, generally 5 m, or to half this length) and also to reinforce the second technological barrier through the creation of the asbestos-cement and bitumen or asbestos-cement and plastic resin complex around active mix containers.
  • the dense asbestos-cement containers according to the invention will be provided with devices facilitating their handling.
  • These devices are very diverse, they can be constituted by metal belts placed at the two ends of the container, either connected to each other by tie rods provided with attachment means, or more simply bolted in asbestos-cement. They can also consist of one or more belts placed in grooves (depth 5 to 6 mm for example) formed in the external peripheral part of the containers.
  • These various metal belts may also allow the lateral gripping of the container using trolleys or gripper handling machines, and also contribute to the resistance to possible shocks which may occur during their handling or transport.
  • these containers When these containers are used during the transport of effluents dispersed in a solid matrix, they can advantageously receive suitable external protection.
  • This protection which aims to strengthen the resistance of the containers to shocks and drops, which may occur during transfer, will preferably be removable so as not to cause unnecessary space during storage.
  • Figure 1 shows a perspective view of a container according to the invention, half of which is provided with a type of external protection, and the other half of which is simply provided with a type of device facilitating its handling.
  • FIG. 2 represents a section on II-II of the containers of FIG. 1.
  • Figures 3 and 4 show in section conditioners according to the invention provided with protective means usable for the transport and / or storage of these conditioners.
  • delta-shaped rubber dampers suitably arranged on the conditioner of FIG. 4, protection is achieved by the use of delta-shaped rubber dampers suitably arranged.
  • these dampers are advantageously arranged radially; on the underside of the conditioner, these dampers are arranged so as to leave sufficient passage for the arms of a handling device; moreover, similar dampers are arranged on the periphery of the conditioner in its upper part and in its lower part. All these shock absorbers are held in place by suitable metal elements which allow, by disassembly, the recovery of these shock absorbers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Processing Of Solid Wastes (AREA)
EP81400429A 1980-03-27 1981-03-20 Conteneur pour le conditionnement des effluents radioactifs Expired EP0037312B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585100147T DE3176989D1 (en) 1980-03-27 1981-03-20 Storage structure for high-level radioactive materials using a dense asbestos cement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8006883 1980-03-27
FR8006883A FR2479542B1 (fr) 1980-03-27 1980-03-27 Nouveaux materiaux barrieres utilisables pour le conditionnement des effluents radio-actifs

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP85100147.9 Division-Into 1981-03-20

Publications (2)

Publication Number Publication Date
EP0037312A1 EP0037312A1 (fr) 1981-10-07
EP0037312B1 true EP0037312B1 (fr) 1986-10-08

Family

ID=9240199

Family Applications (2)

Application Number Title Priority Date Filing Date
EP81400429A Expired EP0037312B1 (fr) 1980-03-27 1981-03-20 Conteneur pour le conditionnement des effluents radioactifs
EP85100147A Expired EP0154770B1 (fr) 1980-03-27 1981-03-20 Structure de stockage de matériaux radioactifs de haute activité utilisant un amiante -ciment dense

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP85100147A Expired EP0154770B1 (fr) 1980-03-27 1981-03-20 Structure de stockage de matériaux radioactifs de haute activité utilisant un amiante -ciment dense

Country Status (4)

Country Link
EP (2) EP0037312B1 (enrdf_load_stackoverflow)
JP (1) JPS5716400A (enrdf_load_stackoverflow)
DE (1) DE3175446D1 (enrdf_load_stackoverflow)
FR (1) FR2479542B1 (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518066A1 (fr) * 1981-12-11 1983-06-17 Caoutchouc Manuf Plastique Dispositif de protection anti-chocs des conteneurs fragiles
FR2526574A1 (fr) * 1982-05-05 1983-11-10 Commissariat Energie Atomique Procede d'evacuation de dechets radioactifs et installation geologique pour l'evacuation de ces dechets
JPS5945599U (ja) * 1982-09-20 1984-03-26 株式会社明電舎 貯蔵庫のラツク
JPS5992900U (ja) * 1982-12-15 1984-06-23 石川島播磨重工業株式会社 放射性廃液固化パツケ−ジの冷却保管装置
DE3322770C2 (de) * 1983-06-24 1985-10-03 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover Vorrichtung zur Handhabung und zum Schutz von Lagergebinden für radioaktive Stoffe
HU191255B (en) * 1984-03-05 1987-01-28 Eroemue- Es Halozattervezoe Vallalat,Hu Container for transporting radioactive matters
JPH0639360Y2 (ja) * 1984-10-31 1994-10-12 株式会社竹中工務店 放射性物質貯蔵施設の貯蔵ピット
JPS61158570A (ja) * 1984-12-28 1986-07-18 株式会社竹中工務店 高レベル放射性物質貯蔵施設
JPS61158571A (ja) * 1984-12-28 1986-07-18 株式会社竹中工務店 高レベル放射性物質貯蔵施設
JPS61158572A (ja) * 1984-12-28 1986-07-18 株式会社竹中工務店 高レベル放射性物質貯蔵施設
DE69016480T2 (de) * 1989-03-31 1995-09-28 Westinghouse Electric Corp Modul zur Lagerung von verpacktem nuklearem Abfall.
WO1995009700A1 (en) * 1993-10-05 1995-04-13 Roger Pincket Method and jacket for encapsulation of waste
RU2137233C1 (ru) * 1998-01-19 1999-09-10 Вертман Александр Абрамович Капсула для захоронения радиоактивных отходов
FR2807867B1 (fr) * 2000-04-13 2003-11-07 Francois Kerserho Nouveau type d'enduit anti-corrosion, pour proteger a long terme les conteneurs et materiels, traitant des dechets nucleaires, eventuellement radio-actifs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136261B (de) * 1959-07-01 1962-09-06 Paul Jolly Verfahren zur Herstellung von gebundenes Anhydritpulver aufweisenden Platten, Steinen und Stampfmassen mit einer hohen Widerstandsfestigkeit gegen radioaktive Strahlen und Hitze
FR1347402A (fr) * 1963-01-23 1963-12-27 Lemer & Cie Améliorations apportées aux containers blindés et aux emballages destinés au transport des radioéléments
JPS5321480A (en) * 1976-08-12 1978-02-27 Amada Co Ltd Shearing machine
JPS53148699A (en) * 1977-05-30 1978-12-25 Japan Atom Energy Res Inst Treatment and disposal container of radioactive waste and industrial waste
DE2730729A1 (de) * 1977-07-07 1979-01-25 Nukem Gmbh Vorrichtung zum lagern bestrahlter bzw. abgebrannter brennelemente aus hochtemperatur-kernreaktoren
DE2909549A1 (de) * 1979-03-10 1980-09-11 Hochtemperatur Reaktorbau Gmbh Brennelementelager

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Encyclopédie Larousse p. 609: Amiante-Ciment *

Also Published As

Publication number Publication date
EP0154770A3 (en) 1985-12-04
FR2479542A1 (fr) 1981-10-02
EP0037312A1 (fr) 1981-10-07
DE3175446D1 (en) 1986-11-13
EP0154770A2 (fr) 1985-09-18
JPS5716400A (en) 1982-01-27
EP0154770B1 (fr) 1989-02-08
FR2479542B1 (fr) 1987-08-07
JPH0149920B2 (enrdf_load_stackoverflow) 1989-10-26

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