FR2468980A1 - RADIO-ACTIVE WASTE FUSION FURNACE - Google Patents

RADIO-ACTIVE WASTE FUSION FURNACE

Info

Publication number
FR2468980A1
FR2468980A1 FR8023360A FR8023360A FR2468980A1 FR 2468980 A1 FR2468980 A1 FR 2468980A1 FR 8023360 A FR8023360 A FR 8023360A FR 8023360 A FR8023360 A FR 8023360A FR 2468980 A1 FR2468980 A1 FR 2468980A1
Authority
FR
France
Prior art keywords
cavity
radio
buffer layer
furnace
fusion furnace
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
FR8023360A
Other languages
French (fr)
Other versions
FR2468980B1 (en
Inventor
Toshio Adachi
Nozomu Kumata
Susumu Hiratake
Makoto Osaki
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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
Priority claimed from JP14190379A external-priority patent/JPS5664700A/en
Priority claimed from JP14190279A external-priority patent/JPS5664699A/en
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Publication of FR2468980A1 publication Critical patent/FR2468980A1/en
Application granted granted Critical
Publication of FR2468980B1 publication Critical patent/FR2468980B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • 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
    • G21F9/30—Processing
    • G21F9/308—Processing by melting the waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B2014/002—Smelting process, e.g. sequences to melt a specific material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B2014/0837—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B2014/0875—Two zones or chambers, e.g. one used for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0031—Plasma-torch heating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Fourneau destiné à réduire le volume de pièces usées ayant été irradiées. Une couche tampon 75 revêtant le fond de la cuve 51 du fourneau comporte une surface supérieure 75b dans laquelle est réalisée une cavité 76 dans laquelle les déchets radio-actifs subissent la fusion. Ces déchets tombent dans cette cavité par un cylindre guide 80 dans ladite cavité et cette couche tampon évite les dégâts pouvant être causés à la cuve par le choc pouvant être produit par les pièces arrivant en chute libre. Application par exemple à la réduction en grenaille ou en petits lingots de pièces ou de revêtements inutilisables provenant de centrales nucléaires.Furnace intended to reduce the volume of worn parts having been irradiated. A buffer layer 75 coating the bottom of the vessel 51 of the furnace comprises an upper surface 75b in which is formed a cavity 76 in which the radioactive waste undergoes fusion. This waste falls into this cavity through a guide cylinder 80 in said cavity and this buffer layer prevents damage that may be caused to the tank by the impact that may be produced by the pieces arriving in free fall. Application for example to the reduction into shot or into small ingots of unusable parts or coatings coming from nuclear power plants.

FR8023360A 1979-11-01 1980-10-31 RADIO-ACTIVE WASTE FUSION FURNACE Granted FR2468980A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14190379A JPS5664700A (en) 1979-11-01 1979-11-01 Oven for melting radioactive waste material
JP14190279A JPS5664699A (en) 1979-11-01 1979-11-01 Oven for melting radioactive material*etc*

Publications (2)

Publication Number Publication Date
FR2468980A1 true FR2468980A1 (en) 1981-05-08
FR2468980B1 FR2468980B1 (en) 1985-02-22

Family

ID=26474063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023360A Granted FR2468980A1 (en) 1979-11-01 1980-10-31 RADIO-ACTIVE WASTE FUSION FURNACE

Country Status (4)

Country Link
CA (1) CA1142353A (en)
DE (1) DE3040755A1 (en)
FR (1) FR2468980A1 (en)
GB (1) GB2063438B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066757A1 (en) * 1981-05-22 1982-12-15 Ngk Insulators, Ltd. An apparatus for discharging radioactive waste from its container
FR2541428A1 (en) * 1983-02-17 1984-08-24 Commissariat Energie Atomique BITUMEN COMBUSTION PROCESS
FR2574518A1 (en) * 1984-11-05 1986-06-13 Atomic Energy Authority Uk Valve for handling apparatus for particulate materials, such as radioactive waste
DE3830591A1 (en) * 1987-09-16 1989-03-30 Doryokuro Kakunenryo DEVICE FOR THERMAL DECOMPOSITION OF RADIOACTIVE WASTE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502520B1 (en) * 1998-01-30 2003-01-07 Hitachi, Ltd. Solid material melting apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1484704A (en) * 1973-12-07 1977-09-01 Chase Brass & Copper Co Method and apparatus for supplying metal to an electrical induction melting furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1484704A (en) * 1973-12-07 1977-09-01 Chase Brass & Copper Co Method and apparatus for supplying metal to an electrical induction melting furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066757A1 (en) * 1981-05-22 1982-12-15 Ngk Insulators, Ltd. An apparatus for discharging radioactive waste from its container
FR2541428A1 (en) * 1983-02-17 1984-08-24 Commissariat Energie Atomique BITUMEN COMBUSTION PROCESS
EP0125933A1 (en) * 1983-02-17 1984-11-21 Commissariat A L'energie Atomique Process for burning bitumen
US4631384A (en) * 1983-02-17 1986-12-23 Commissariat A L'energie Atomique Bitumen combustion process
FR2574518A1 (en) * 1984-11-05 1986-06-13 Atomic Energy Authority Uk Valve for handling apparatus for particulate materials, such as radioactive waste
DE3830591A1 (en) * 1987-09-16 1989-03-30 Doryokuro Kakunenryo DEVICE FOR THERMAL DECOMPOSITION OF RADIOACTIVE WASTE

Also Published As

Publication number Publication date
CA1142353A (en) 1983-03-08
GB2063438B (en) 1983-06-02
FR2468980B1 (en) 1985-02-22
DE3040755C2 (en) 1987-10-29
DE3040755A1 (en) 1981-05-14
GB2063438A (en) 1981-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse