GB1468696A - Comminution of nuclear fuel and/or breeder elements especially in recycling - Google Patents

Comminution of nuclear fuel and/or breeder elements especially in recycling

Info

Publication number
GB1468696A
GB1468696A GB3423274A GB3423274A GB1468696A GB 1468696 A GB1468696 A GB 1468696A GB 3423274 A GB3423274 A GB 3423274A GB 3423274 A GB3423274 A GB 3423274A GB 1468696 A GB1468696 A GB 1468696A
Authority
GB
United Kingdom
Prior art keywords
milling
rolls
fuel
pair
fuel element
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
GB3423274A
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Kernforschungsanlage Juelich 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 Kernforschungsanlage Juelich GmbH filed Critical Kernforschungsanlage Juelich GmbH
Publication of GB1468696A publication Critical patent/GB1468696A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/34—Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing ; Apparatus or processes for dismantling strings of spent fuel elements
    • G21C19/36—Mechanical means only
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/42—Reprocessing of irradiated fuel
    • G21C19/44—Reprocessing of irradiated fuel of irradiated solid fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Crushing And Grinding (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

1468696 Comminuting apparatus KERNFORSCHUNGSANLAGE JULICH GmbH 2 Aug 1974 [5 Sept 1973] 34232/74 Heading B2A [Also in Division G6] In a process of comminuting a nuclear fuel and/or breeder element containing nuclear fuel and/or fertile material embedded in graphite, the comminution is performed by milling the element by holding it in engagement with at least one rotating milling cutter tool. In one embodiment of comminuting mill, shown in Figure 1, the fuel element 5 is fed to a pair of milling rolls 1, 2 through a tubular support 4, the end 6 of which facing the rolls 1, 2 is shaped such that a uniform distance is obtained between the support 4 and the surfaces of the rolls 1, 2. On two opposed sides of the support 4 there are arranged recesses 7, 8, 9, 10 through which feeding devices 11, 12, 13, 14 extend. These are rods which are in direct contact with the surface of the fuel element 5 and which are driven in rotation so as to assist in feeding the element 5 against the milling rolls. The milling rolls 1, 2 are driven by means (not shown) in the direction of the arrows 17, 18 so that their teeth engage the fuel elements 5 in a direction opposed to the direction of transport 19 of the fuel elements. The particles cut off by the milling rolls 1, 2 are collected in a container 20 from where they pass via outlet 21 either directly into a fluidised bed furnace or, if the milling operation is followed by pulverisation, into a pulveriser provided for this purpose. The milling rolls 1, 2 have cutting teeth 27 (Figure 3) arranged on their surface in the form of interrupted (helical threads having a trapezoidal cross-section. In a second embodiment (Figure 2, not shown), there are two pairs of opposed milling rolls arranged in series, each pair milling only part of the cross-section of the fuel element. The pairs of milling rolls are driven in opposite directions, the rotation of the first pair being such that their teeth where they engage the fuel element move with the direction of transport of the fuel element whereas the second pair of rolls rotates in the opposite sense.
GB3423274A 1973-09-05 1974-08-02 Comminution of nuclear fuel and/or breeder elements especially in recycling Expired GB1468696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732344618 DE2344618A1 (en) 1973-09-05 1973-09-05 PROCESS AND DEVICE FOR CRUSHING REFUELED COMBUSTION AND / OR INCUBATOR ELEMENTS FOR NUCLEAR REACTORS

Publications (1)

Publication Number Publication Date
GB1468696A true GB1468696A (en) 1977-03-30

Family

ID=5891612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3423274A Expired GB1468696A (en) 1973-09-05 1974-08-02 Comminution of nuclear fuel and/or breeder elements especially in recycling

Country Status (4)

Country Link
JP (1) JPS5053797A (en)
DE (1) DE2344618A1 (en)
FR (1) FR2242751B1 (en)
GB (1) GB1468696A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318904A (en) * 1996-10-31 1998-05-06 Commissariat Energie Atomique Process and system for dismantling an irradiated fuel element assembly
FR2786116A1 (en) * 1998-11-19 2000-05-26 Franco Belge Combustibles Powdered nuclear fuel processing comprises passing powder through reduction unit, retaining coarse particles and subjecting to continuous reduction

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617067C3 (en) * 1976-04-17 1978-12-21 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Device for breaking the shell layers of coated fuel and / or brood material particles for nuclear reactors
FR2502830A1 (en) * 1981-03-24 1982-10-01 Sgn Soc Gen Tech Nouvelle ROTARY DEVICE FOR SINGING A BEAM OF TUBES CONTAINING NUCLEAR FUELS
DE19719031C1 (en) * 1997-04-29 1998-10-08 Hipp Gmbh & Co Kg Comminuting machine for deep frozen vegetables

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318904A (en) * 1996-10-31 1998-05-06 Commissariat Energie Atomique Process and system for dismantling an irradiated fuel element assembly
GB2318904B (en) * 1996-10-31 2000-11-08 Commissariat Energie Atomique Process and system for dismantling an irradiated fuel element assembly
FR2786116A1 (en) * 1998-11-19 2000-05-26 Franco Belge Combustibles Powdered nuclear fuel processing comprises passing powder through reduction unit, retaining coarse particles and subjecting to continuous reduction
WO2000031747A1 (en) * 1998-11-19 2000-06-02 Ste Franco-Belge De Fabrication De Combustibles - Fbfc Method and installation for treating a nuclear fuel powder

Also Published As

Publication number Publication date
FR2242751A1 (en) 1975-03-28
JPS5053797A (en) 1975-05-13
FR2242751B1 (en) 1980-07-04
DE2344618A1 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee