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WO1990000700A1 - Procede pour depolluer un appareil - Google Patents

Procede pour depolluer un appareil Download PDF

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Publication number
WO1990000700A1
WO1990000700A1 PCT/EP1989/000790 EP8900790W WO9000700A1 WO 1990000700 A1 WO1990000700 A1 WO 1990000700A1 EP 8900790 W EP8900790 W EP 8900790W WO 9000700 A1 WO9000700 A1 WO 9000700A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
pyrolysis
combustion
combustion chamber
heated
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.)
Ceased
Application number
PCT/EP1989/000790
Other languages
German (de)
English (en)
Inventor
Josef Edelmann
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.)
ASEA BROWN BOVERI AG
ABB AB
Original Assignee
ASEA BROWN BOVERI AG
Asea Brown Boveri AB
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 ASEA BROWN BOVERI AG, Asea Brown Boveri AB filed Critical ASEA BROWN BOVERI AG
Publication of WO1990000700A1 publication Critical patent/WO1990000700A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
    • B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
    • B08B7/0085—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating by pyrolysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/30—Pyrolysing
    • F23G2201/303—Burning pyrogases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/50—Devolatilising; from soil, objects

Definitions

  • the invention relates to a method for disposing of a device, in particular electrical device, which is contaminated with environmentally harmful, hydrocarbon-containing, in particular liquid material.
  • the term "device” in the sense of the present invention encompasses both the device as a whole and components of such a device, and the term “electrical device” is intended primarily to include transformers, electrical chokes or capacitors.
  • electrical devices of this type which were intended for use in power supply or distribution systems, insulating liquids which contained polychlorinated biphenyl -PCB- were often used.
  • Known insulating liquids of this type have become generally known under the name Askarele. This insulating liquid ten have good electrical properties and are flame retardant, so that a fire of the electrical devices could be largely ruled out.
  • the invention is therefore based on the object, a Ver ⁇ drive of the type mentioned indicate that allows a simple 'and cost-effective disposal of contaminated equipment or components thereof.
  • the method should be suitable for the disposal of a wide variety of devices and the effort for preparing the disposal should be as low as possible.
  • the solution to this problem is, according to the invention, that the complete device is placed in a thermal treatment chamber and heated to at least one temperature which causes the pyrolysis of the environmentally harmful, hydrocarbon-containing material, and that the pyrolysis gas produced is heated to at least one temperature
  • the heated combustion chamber is introduced and thermally worked up. After the mechanical removal of the environmentally harmful, hydrocarbon-containing material, in particular after the discharge of liquid material, the device is thus subjected to pyrolysis and the pyrolysis gas formed is burned at high temperatures, preferably at temperatures above 1100 ° C.
  • Pyrolysis has the advantage of a simple removal of the material in the form of pyrolysis gas from the device introduced into the treatment chamber, a prior disassembly of the device into its components being unnecessary, while the thermal processing of the pyrolysis gas in the combustion chamber leads to environmentally compatible or at least largely environmentally compatible residues.
  • pyrolysis is understood to mean both degassing with exclusion of air and gasification in the presence of oxygen-containing gases. It should also be noted that the term does not include environmentally harmful, hydrocarbonaceous material, radioactive material.
  • Preferred developments of the method according to the invention consist in that the device is heated to 300 to 800 ° C. and the material is degassed in an inert or reducing atmosphere, or that the device is heated to 600 to 1000 ° C. and the material in the presence of Oxygen, especially atmospheric oxygen, is gasified.
  • the gasification it is expedient for the gasification to take place in the presence of an amount of oxygen which is only sufficient for the partial combustion of the material and which preferably accounts for 30 to 60% of the amount required for complete combustion.
  • a particularly preferred development of the invention is that as the combustion chamber. Afterburner of a hazardous waste incinerator is used. The devices are thus disposed of in the immediate vicinity of a hazardous waste incineration plant, and the pyrolysis gas is fed to the hazardous waste incineration plant for processing. As a result, the outlay for carrying out the method according to the invention is reduced even further, to a minimum that is hardly to be undercut. Further advantages and features of the method according to the invention emerge from the following description of a system serving as an exemplary embodiment, which is suitable for carrying out the method and is shown in a very simplified manner in the drawing.
  • the treatment chamber 10 is formed in a cuboid housing 12, the walls of which are provided with thermal insulation 14.
  • the vertical wall 16 on the left in the drawing is easily detachably and gas-tightly attached to the housing 12, so that after its removal the device 18 to be disposed of, in the present example an electrical transformer, in its entirety easily into the treatment chamber 10 can be introduced.
  • radiators 20 are arranged at a distance from the device 18 in the vicinity of the walls of the housing, which are electrically or by gas, so that the treatment chamber and the device can be heated by indirect heat exchange.
  • the treatment chamber 10 is arranged in the vicinity of a hazardous waste incineration plant 22.
  • This has a combustion chamber 24, into which the special waste intended for combustion and combustion air are introduced in the direction of arrows 26 and 28, respectively.
  • the combustion chamber 24 is connected at the top by a flue gas pipe 30 to a combustion chamber 32, which serves as an afterburning chamber.
  • At least one burner 34 is also arranged in the afterburning chamber and is used to carry out and / or support the afterburning of the supplied flue gases.
  • the combustion chamber 32 is also provided with an exhaust gas duct 36 which is connected to a chimney (not shown).
  • the upper area of the treatment chamber 10 is connected by a pyrolysis gas line 38 with an inserted shut-off device 40 to the combustion chamber 32 serving as an afterburning chamber.
  • the outlet of the pyrolysis gas line 38 is arranged in the vicinity of the burner 34.
  • a second pyrolysis gas line 42 with an inserted second shut-off element 44 is connected to the pyrolysis gas line 38.
  • This second pyrolysis gas line opens into the combustion chamber 24.
  • the left wall 16 of the treatment chamber 10 is removed and the device 18 is inserted into the treatment chamber with the device cover 46 open.
  • the opening of the device should take place so far that during the pyrolysis process the pyrolysis gases, which originate from the material present in the interior of the device, can easily pass into the treatment chamber 10.
  • the left wall 16 is again applied gas-tight to the housing 12 so that the treatment of the device 18 can take place.
  • the radiators 20 are put into operation and the device as a whole is heated to the intended pyrolysis temperature.
  • the material which is harmful to the environment and contains hydrocarbons in the present exemplary embodiment insulating oil, is pyrolyzed and the pyrolysis gases formed pass into the treatment chamber 10.
  • the pyrolysis gases are introduced from the treatment chamber 10 through the pyrolysis gas line 38, with the shut-off element 40 open and the shut-off element 44 closed, into the combustion chamber 32 serving as an afterburning chamber.
  • the special waste incineration plant 22 is in operation, and the flue gases coming from the combustion chamber 24 are afterburned in the combustion chamber 32 serving as the afterburning chamber with the help of the burner 34.
  • the pyrolysis gases introduced are also burned or processed into environmentally compatible products in the afterburning chamber. The end products of the combustion leave the combustion chamber 32 through the exhaust gas duct 36 and are released into the environment through the chimney (not shown).
  • the pyrolysis gas is introduced into the combustion chamber 24 and, together with the hazardous waste, is subjected to a combustion or thermal treatment.
  • the residues remaining after the combustion or thermal treatment then flow together with the hazardous waste smoke gases into the combustion chamber 32 serving as an afterburning chamber and are then treated further, as described above. In this way, the pyrolysis gases are subjected to a double thermal treatment.
  • the treatment chamber 10 is flushed with nitrogen and filled with it before it is started up.
  • a line 50 with an inserted shut-off device. 52 nitrogen removed from a gas container 54 and introduced into the treatment chamber 10 below.
  • the air displaced in this way of the treatment chamber 10 is discharged through a line 56 arranged in the upper area with an inserted shut-off element 58 into the surroundings or, if necessary, into the combustion chamber 32 serving as an afterburning chamber. If the entire treatment chamber 10 is filled with nitrogen in this way, the shut-off devices 52 and 58 are closed and the treatment chamber 10 is put into operation.
  • the device 18 is to be treated in the presence of oxygen and the material is to be gasified, it is not necessary to introduce nitrogen into the treatment chamber 10. Instead, outside air is drawn in by a blower or a compressor 60 during operation of the treatment chamber and is conveyed through line 62 into the treatment chamber 10.
  • the control and shut-off device 64 arranged in line 62 is set such that the air is conveyed into the treatment chamber with the desired mass flow.
  • the radiators 20 are taken out of operation and the shut-off devices 40 and 44 are closed.
  • the treatment chamber is preferably flushed with nitrogen and then the left wall 16 of the housing is detached and the device 18 is removed from the treatment chamber, so that the system is ready for receiving an untreated device again is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé pour dépolluer un appareil, en particulier un appareil électrique. Les appareils contaminés par des matériaux polluants contenant des hydrocarbures doivent souvent être entreposés dans des dépôts pour déchets spéciaux, ce qui revient cher. Aussi la présente invention propose-t-elle de chauffer lesdits appareils dans une chambre de traitement thermique (10) jusqu'à une température provoquant la pyrolyse du matériau, d'introduire le gas de pyrolyse ainsi produit dans au moins une chambre de combustion (24, 32) et de le retraiter thermiquement. On peut ainsi nettoyer et dépolluer de manière simple en particulier les appareils électriques contaminés par un diélectrique liquide contenant du PCB.
PCT/EP1989/000790 1988-07-15 1989-07-08 Procede pour depolluer un appareil Ceased WO1990000700A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3824014.9 1988-07-15
DE3824014A DE3824014A1 (de) 1988-07-15 1988-07-15 Verfahren zum entsorgen eines geraetes

Publications (1)

Publication Number Publication Date
WO1990000700A1 true WO1990000700A1 (fr) 1990-01-25

Family

ID=6358743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1989/000790 Ceased WO1990000700A1 (fr) 1988-07-15 1989-07-08 Procede pour depolluer un appareil

Country Status (2)

Country Link
DE (1) DE3824014A1 (fr)
WO (1) WO1990000700A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618406A1 (fr) * 1993-03-27 1994-10-05 Ltg Lufttechnische Gmbh Procédé et dispositif pour la combustion d'air d'échappement
US9850433B2 (en) 2015-12-31 2017-12-26 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of E-waste materials
EP3446799A1 (fr) * 2017-07-25 2019-02-27 Seccon E.U. Procédé de récupération de substances de valeur à partir d'objets de recyclage
US10640711B2 (en) 2018-06-05 2020-05-05 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of treated wood waste sources

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7244401B1 (en) 1998-11-13 2007-07-17 Ir Systems International Apparatus for separation of constituents from matrices
DE10007313C2 (de) * 2000-02-17 2002-09-05 Schwing Fluid Technik Ag Verfahren zur Reinigung von durch Polymerablagerungen verschmutzten Apparate- und Maschinenteilen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193177A1 (fr) * 1972-07-14 1974-02-15 Air Preheater
DE2247861A1 (de) * 1972-09-29 1974-05-30 Siemens Ag Vorrichtung zur beseitigung von lackrueckstaenden
JPS56111078A (en) * 1980-02-04 1981-09-02 Tetsuo Ito Method for separating and removing polychlorinated biphenyls
US4304612A (en) * 1979-12-19 1981-12-08 Fuji Electric Company, Ltd. Method of treatment to remove harmful material from electric products impregnated with poly-chlorinated-biphenyl
DE3122395A1 (de) * 1981-06-05 1983-01-05 Dr. Schmitz + Apelt Industrieofenbau GmbH, 5600 Wuppertal Verfahren und vorrichtung zur trennung verdampfbarer und/oder vergasbarer und/oder brennbarer substanzen von recycling-materialien
EP0241657A1 (fr) * 1986-02-21 1987-10-21 Siemens Aktiengesellschaft Appareil d'élimination de matières toxiques
EP0262291A1 (fr) * 1986-08-01 1988-04-06 Deutsche Babcock Anlagen Aktiengesellschaft Dispositif pour la pyrolyse des déchets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242012C3 (de) * 1972-08-23 1975-10-16 Mannesmann Ag, 4000 Duesseldorf Verfahren zur gemeinsamen Entsorgung von aus Industriemüll und Haushaltsmüll bestehenden Abfällen sowie Klärschlamm
US4411695A (en) * 1977-02-25 1983-10-25 Apros Corporation Metallic scrap decontamination process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193177A1 (fr) * 1972-07-14 1974-02-15 Air Preheater
DE2247861A1 (de) * 1972-09-29 1974-05-30 Siemens Ag Vorrichtung zur beseitigung von lackrueckstaenden
US4304612A (en) * 1979-12-19 1981-12-08 Fuji Electric Company, Ltd. Method of treatment to remove harmful material from electric products impregnated with poly-chlorinated-biphenyl
JPS56111078A (en) * 1980-02-04 1981-09-02 Tetsuo Ito Method for separating and removing polychlorinated biphenyls
DE3122395A1 (de) * 1981-06-05 1983-01-05 Dr. Schmitz + Apelt Industrieofenbau GmbH, 5600 Wuppertal Verfahren und vorrichtung zur trennung verdampfbarer und/oder vergasbarer und/oder brennbarer substanzen von recycling-materialien
EP0241657A1 (fr) * 1986-02-21 1987-10-21 Siemens Aktiengesellschaft Appareil d'élimination de matières toxiques
EP0262291A1 (fr) * 1986-08-01 1988-04-06 Deutsche Babcock Anlagen Aktiengesellschaft Dispositif pour la pyrolyse des déchets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 188 (C-81) (860), 27. November 1981; & JP-A-56111078 (Tetsuo Itou) 2. September 1981 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618406A1 (fr) * 1993-03-27 1994-10-05 Ltg Lufttechnische Gmbh Procédé et dispositif pour la combustion d'air d'échappement
US9850433B2 (en) 2015-12-31 2017-12-26 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of E-waste materials
US10961461B2 (en) 2015-12-31 2021-03-30 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of e-waste materials
US11306255B2 (en) 2015-12-31 2022-04-19 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of e-waste materials
US11814585B2 (en) 2015-12-31 2023-11-14 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of e-waste materials
EP3446799A1 (fr) * 2017-07-25 2019-02-27 Seccon E.U. Procédé de récupération de substances de valeur à partir d'objets de recyclage
US10640711B2 (en) 2018-06-05 2020-05-05 Chz Technologies, Llc Multistage thermolysis method for safe and efficient conversion of treated wood waste sources

Also Published As

Publication number Publication date
DE3824014A1 (de) 1990-01-18

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