GB2024694A - Radioactive material enclosures - Google Patents

Radioactive material enclosures Download PDF

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Publication number
GB2024694A
GB2024694A GB7921496A GB7921496A GB2024694A GB 2024694 A GB2024694 A GB 2024694A GB 7921496 A GB7921496 A GB 7921496A GB 7921496 A GB7921496 A GB 7921496A GB 2024694 A GB2024694 A GB 2024694A
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GB
United Kingdom
Prior art keywords
container
sheet
shielding
transporting
jacket
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.)
Granted
Application number
GB7921496A
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GB2024694B (en
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.)
Transnuklear GmbH
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Transnuklear GmbH
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Filing date
Publication date
Application filed by Transnuklear GmbH filed Critical Transnuklear GmbH
Publication of GB2024694A publication Critical patent/GB2024694A/en
Application granted granted Critical
Publication of GB2024694B publication Critical patent/GB2024694B/en
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
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A shielding container for transporting and/or storing irradiated fuel elements or other radioactive waste products comprises a cast steel or nodular-graphite cast iron in the form of a casting 1, 2, of which the inner and/or outer surfaces are provided with at least one sheet-metal jacket 4, 5 which acts as a mould during the casting process. The walls of the container are smooth and thus easy to clean. The outer jacket 5 may be provided with corrugations (not shown) or with welded-on fins 6 to increase heat dissipation. <IMAGE>

Description

SPI CIFICATION A shielding container for transporting and/or storing irradiated fuel elements or other biologically harmful waste products The present invention relates to a shielding container of cast steel or nodular-graphite cast iron for transporting andlorstoring irradiated fuel elements or other biologically harmful waste products.
Irradiated or burnt up fuel elements from nuclear reactors have to be transported and stored in containers which safely contain the radioactivity of the material. Consequently, the construction of these containers is subject to strict specifications, especially in regard to the indestructibility of the container in the event of accidents and protection of the environmentfrom radioactive radiation.
Accordingly, the containers used for transporting and storing irradiated fuel elements have to be stable and robust in construction and have to afford protection against radioactive radiation. The constituent material of the radioactive shield must be selected in such away, however, that the weight of the shield, which represents the greater part of the weight of the transporting container, is kept as light as possible for economic reasons. In addition, it is important to ensure that the heat of decomposition of the fuel elements being transported or stored may be safely dissipated to the outside.
The shielding of the container has to contain all the biologically active radiation, for which purpose a jacket of uranium, lead or steel is preferably used.
Although cast iron has also recently been proposed for shielding transporting containers for fission products (German Utility Model No. 7317 984), containers made of cast iron generaily have a rough surface and are therefore difficult to clean. Consequ antly, the manufacture of containers such as these often involves another expensive step for smoothing the surfaces of the containers.
Accordingly, an object of the present invention is to provide a shielding container of cast steel or nodular-graphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products which does not have any of these disadvantages and which, in particular, has srr ooth wall surfaces which are easy to clean.
According to the present invention, this object is achieved in that the inner and/or outer surfaces of the casting are provided with a sheet-metal jacket which simultaneously acts as a mould during the casting process.
The present invention therefore relates to a shield ing container of cast steel or nodular-graphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products the container being in the form of a casting of which the inner and/or outer surfaces are provided with at least one sheet-metal jacket which simultaneously acts as a mould during the casting process.
The advantage of this container construction is that it has wall surfaces which are smooth and easy to clean. At the same time, the sheet-metal jackets on the inner and/or outer surface of the shielding container act as a iost mould during casting of the container body.
The sheet metal jackets preferably consist of fine steel, although it is also possible to use other steels and metals or metal alloys, above all material having neutron-absorbing properties.
The sheet-metal jackets are advantageously provided with corrugations to increase their surface area and hence to increase the dissipation of heat.
The outer jacket is preferably provided with weldedon cooling fins for the same purpose.
To ensure safe operation of the shielding containers, one or more pipes generally have to be arranged inside the container walls. These pipes are advantageously welded to the sheet-metal jackets and are cast into the container wall during the casting operation, simulaneously acting as a core support.
The accompanying drawing diagrammatically illustrates one example of an embodiment of the transporting container according to the present invention.
The shielding container consists of a container body (1) having an integrally cast base (2) and a fitted cover (3), cast steel or nodular-graphite cast iron being used as the constituent material of the container body and the base. The cover (3) may also consist of this material. Sheet-metal jackets (4,5) are provided on the inner and outer surfaces of the container body, simultaneously acting as a mould during the casting operation. In this case, cooling fins (6) are welded onto the outer jacket (5). The pipes (7) are also welded to the inner jacket (4) and outer jacket (5) and cast into the container body (1).
1. A shielding container of cast steel or nodulargraphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products, the container being in the form of a casting of which the inner and/or outer surfaces are provided with at least one sheet-metal jacket which simultaneously acts as a mould during the casting process.
2. A shielding container as claimed in claim 1, wherein the sheet-metal jacket consists of fine steel.
3. A shielding container as claimed in claim 1, wherein the sheet-metal jacket consists of a neutronabsorbing material.
4. A shielding container as claimed in any of claims 1 to 3, wherein the sheet-metal jacket is provided with corrugations.
5. A shielding container as claimed in any of claims 1 to 4, wherein the outer jacket is additionally provided with welded-on cooling fins.
6. A shielding container as claimed in any of claims 1 to 5, wherein one or more pipes which have to be provided in the container are welded to the sheet-metal jacket(s) and act as a core support.
7. A shielding container substantially as described with particular reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPI CIFICATION A shielding container for transporting and/or storing irradiated fuel elements or other biologically harmful waste products The present invention relates to a shielding container of cast steel or nodular-graphite cast iron for transporting andlorstoring irradiated fuel elements or other biologically harmful waste products. Irradiated or burnt up fuel elements from nuclear reactors have to be transported and stored in containers which safely contain the radioactivity of the material. Consequently, the construction of these containers is subject to strict specifications, especially in regard to the indestructibility of the container in the event of accidents and protection of the environmentfrom radioactive radiation. Accordingly, the containers used for transporting and storing irradiated fuel elements have to be stable and robust in construction and have to afford protection against radioactive radiation. The constituent material of the radioactive shield must be selected in such away, however, that the weight of the shield, which represents the greater part of the weight of the transporting container, is kept as light as possible for economic reasons. In addition, it is important to ensure that the heat of decomposition of the fuel elements being transported or stored may be safely dissipated to the outside. The shielding of the container has to contain all the biologically active radiation, for which purpose a jacket of uranium, lead or steel is preferably used. Although cast iron has also recently been proposed for shielding transporting containers for fission products (German Utility Model No. 7317 984), containers made of cast iron generaily have a rough surface and are therefore difficult to clean. Consequ antly, the manufacture of containers such as these often involves another expensive step for smoothing the surfaces of the containers. Accordingly, an object of the present invention is to provide a shielding container of cast steel or nodular-graphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products which does not have any of these disadvantages and which, in particular, has srr ooth wall surfaces which are easy to clean. According to the present invention, this object is achieved in that the inner and/or outer surfaces of the casting are provided with a sheet-metal jacket which simultaneously acts as a mould during the casting process. The present invention therefore relates to a shield ing container of cast steel or nodular-graphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products the container being in the form of a casting of which the inner and/or outer surfaces are provided with at least one sheet-metal jacket which simultaneously acts as a mould during the casting process. The advantage of this container construction is that it has wall surfaces which are smooth and easy to clean. At the same time, the sheet-metal jackets on the inner and/or outer surface of the shielding container act as a iost mould during casting of the container body. The sheet metal jackets preferably consist of fine steel, although it is also possible to use other steels and metals or metal alloys, above all material having neutron-absorbing properties. The sheet-metal jackets are advantageously provided with corrugations to increase their surface area and hence to increase the dissipation of heat. The outer jacket is preferably provided with weldedon cooling fins for the same purpose. To ensure safe operation of the shielding containers, one or more pipes generally have to be arranged inside the container walls. These pipes are advantageously welded to the sheet-metal jackets and are cast into the container wall during the casting operation, simulaneously acting as a core support. The accompanying drawing diagrammatically illustrates one example of an embodiment of the transporting container according to the present invention. The shielding container consists of a container body (1) having an integrally cast base (2) and a fitted cover (3), cast steel or nodular-graphite cast iron being used as the constituent material of the container body and the base. The cover (3) may also consist of this material. Sheet-metal jackets (4,5) are provided on the inner and outer surfaces of the container body, simultaneously acting as a mould during the casting operation. In this case, cooling fins (6) are welded onto the outer jacket (5). The pipes (7) are also welded to the inner jacket (4) and outer jacket (5) and cast into the container body (1). CLAIMS
1. A shielding container of cast steel or nodulargraphite cast iron for transporting and/or storing irradiated fuel elements or other biologically harmful waste products, the container being in the form of a casting of which the inner and/or outer surfaces are provided with at least one sheet-metal jacket which simultaneously acts as a mould during the casting process.
2. A shielding container as claimed in claim 1, wherein the sheet-metal jacket consists of fine steel.
3. A shielding container as claimed in claim 1, wherein the sheet-metal jacket consists of a neutronabsorbing material.
4. A shielding container as claimed in any of claims 1 to 3, wherein the sheet-metal jacket is provided with corrugations.
5. A shielding container as claimed in any of claims 1 to 4, wherein the outer jacket is additionally provided with welded-on cooling fins.
6. A shielding container as claimed in any of claims 1 to 5, wherein one or more pipes which have to be provided in the container are welded to the sheet-metal jacket(s) and act as a core support.
7. A shielding container substantially as described with particular reference to the accompanying drawing.
GB7921496A 1978-06-28 1979-06-20 Radioactive material enclosures Expired GB2024694B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19787819282 DE7819282U1 (en) 1978-06-28 1978-06-28 SHIELDING CONTAINER FOR THE TRANSPORT AND STORAGE OF IRRADIATED FUEL ELEMENTS OR OTHER BIO-HARMFUL WASTE

Publications (2)

Publication Number Publication Date
GB2024694A true GB2024694A (en) 1980-01-16
GB2024694B GB2024694B (en) 1982-07-14

Family

ID=6692766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7921496A Expired GB2024694B (en) 1978-06-28 1979-06-20 Radioactive material enclosures

Country Status (7)

Country Link
JP (1) JPS5540989A (en)
BR (1) BR5900839U (en)
CH (1) CH639794A5 (en)
DE (1) DE7819282U1 (en)
FR (1) FR2437682B1 (en)
GB (1) GB2024694B (en)
SE (1) SE438045B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036982A1 (en) * 1980-03-29 1981-10-07 TRANSNUKLEAR GmbH Housing for radioactive materials in transport and/or storage containers
EP0043106A1 (en) * 1980-07-02 1982-01-06 TRANSNUKLEAR GmbH Transport- and/or storage container with an inner lining and method of making same
EP0057867A1 (en) * 1981-02-03 1982-08-18 Nukem GmbH Multi-layered container for the safe long-term storage of radioactive material
EP0092679A1 (en) * 1982-04-22 1983-11-02 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH Container for radioactive wastes
EP0116412A1 (en) * 1983-01-18 1984-08-22 Kabushiki Kaisha Kobe Seiko Sho A casing for radioactive materials and a method of manufacture of the same
US4567014A (en) * 1981-10-28 1986-01-28 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Container for transporting and storing nuclear reactor fuel elements
US4700863A (en) * 1986-01-09 1987-10-20 The United States Of America As Represented By The United States Department Of Energy Seal welded cast iron nuclear waste container
US6989543B2 (en) 2003-08-15 2006-01-24 C.R. Bard, Inc. Radiation shielding container for radioactive sources
US7199375B2 (en) 2004-10-12 2007-04-03 Bard Brachytherapy, Inc. Radiation shielding container that encloses a vial of one or more radioactive seeds
FR3017237A1 (en) * 2014-02-03 2015-08-07 Andra CONTAINER FOR STORING PARCELS OF RADIOACTIVE WASTE IN DEEP GEOLOGICAL FORMATION

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931747C2 (en) * 1979-08-04 1982-09-09 Siempelkamp Gießerei GmbH & Co, 4150 Krefeld Process for applying a metallic decontaminable layer to a storage container for radioactive waste
DE2952168C2 (en) * 1979-12-22 1982-09-02 Transnuklear Gmbh, 6450 Hanau Transport and / or storage containers for radioactive substances
JPS5853435U (en) * 1981-10-06 1983-04-11 松下電工株式会社 Structure of waterproof push button switch
JPS62178399U (en) * 1986-05-01 1987-11-12
DE3702319A1 (en) * 1987-01-27 1988-08-04 Siempelkamp Gmbh & Co Method and ultimate-storage cask for disposing of meltable radioactively contaminated and/or activated materials
DE8905849U1 (en) * 1989-05-10 1990-09-20 Nukem Gmbh, 6450 Hanau Containers for holding radioactive materials
JPH038275U (en) * 1989-06-12 1991-01-25
DE4037805A1 (en) * 1990-11-28 1992-06-04 Siempelkamp Gmbh & Co Spent nuclear fuel element transport and storage container - comprises steel inner component, in nodular cast iron@ casing and intermediate obtd. by carbon@ diffusion for continuous heat transfer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351440A (en) * 1962-11-05 1964-02-07 Travaux Et De Materiel Sotrama Container for transporting hazardous materials, in particular radioactive materials, which must be handled at a distance
DE2065863B2 (en) * 1969-08-13 1981-07-16 Transnucléaire, Société pour les Transports de l'Industrie Nucléaire, Paris Containers for the storage and transport of radioactive materials
DE7317984U (en) * 1973-05-12 1973-09-06 Siempelkamp Giesserei Kg Containers for the collection, transport and disposal of fission products

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036982A1 (en) * 1980-03-29 1981-10-07 TRANSNUKLEAR GmbH Housing for radioactive materials in transport and/or storage containers
EP0043106A1 (en) * 1980-07-02 1982-01-06 TRANSNUKLEAR GmbH Transport- and/or storage container with an inner lining and method of making same
EP0057867A1 (en) * 1981-02-03 1982-08-18 Nukem GmbH Multi-layered container for the safe long-term storage of radioactive material
US4567014A (en) * 1981-10-28 1986-01-28 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Container for transporting and storing nuclear reactor fuel elements
EP0092679A1 (en) * 1982-04-22 1983-11-02 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH Container for radioactive wastes
US4569818A (en) * 1982-04-22 1986-02-11 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Container for storing radioactive material
EP0116412A1 (en) * 1983-01-18 1984-08-22 Kabushiki Kaisha Kobe Seiko Sho A casing for radioactive materials and a method of manufacture of the same
US4752437A (en) * 1983-01-18 1988-06-21 Kabushiki Kaisha Kobe Seiko Sho Packaging of radioactive materials
US4700863A (en) * 1986-01-09 1987-10-20 The United States Of America As Represented By The United States Department Of Energy Seal welded cast iron nuclear waste container
US6989543B2 (en) 2003-08-15 2006-01-24 C.R. Bard, Inc. Radiation shielding container for radioactive sources
US7199375B2 (en) 2004-10-12 2007-04-03 Bard Brachytherapy, Inc. Radiation shielding container that encloses a vial of one or more radioactive seeds
FR3017237A1 (en) * 2014-02-03 2015-08-07 Andra CONTAINER FOR STORING PARCELS OF RADIOACTIVE WASTE IN DEEP GEOLOGICAL FORMATION

Also Published As

Publication number Publication date
DE7819282U1 (en) 1978-10-12
FR2437682A1 (en) 1980-04-25
SE438045B (en) 1985-03-25
BR5900839U (en) 1980-12-23
SE7905660L (en) 1979-12-29
JPS5540989A (en) 1980-03-22
FR2437682B1 (en) 1986-07-18
CH639794A5 (en) 1983-11-30
GB2024694B (en) 1982-07-14

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PCNP Patent ceased through non-payment of renewal fee