WO1996005920A1 - Procede et dispositif d'elimination d'appareils - Google Patents

Procede et dispositif d'elimination d'appareils Download PDF

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Publication number
WO1996005920A1
WO1996005920A1 PCT/EP1995/003131 EP9503131W WO9605920A1 WO 1996005920 A1 WO1996005920 A1 WO 1996005920A1 EP 9503131 W EP9503131 W EP 9503131W WO 9605920 A1 WO9605920 A1 WO 9605920A1
Authority
WO
WIPO (PCT)
Prior art keywords
treatment chamber
devices
liquid
disposed
lock
Prior art date
Application number
PCT/EP1995/003131
Other languages
German (de)
English (en)
Inventor
Josef Lichtblau
Original Assignee
Recytec Technologie Für Altgutverwertung 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 Recytec Technologie Für Altgutverwertung Gmbh filed Critical Recytec Technologie Für Altgutverwertung Gmbh
Priority to AU33429/95A priority Critical patent/AU3342995A/en
Publication of WO1996005920A1 publication Critical patent/WO1996005920A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/50—Destroying solid waste or transforming solid waste into something useful or harmless involving radiation, e.g. electro-magnetic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B09B3/35—Shredding, crushing or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/0428—Jets of high pressure fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/08—Transition metals
    • B29K2705/10—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/08—Transition metals
    • B29K2705/12—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/28—Tools, e.g. cutlery
    • B29L2031/286—Cutlery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/762—Household appliances
    • B29L2031/7622—Refrigerators
    • 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
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • 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
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the invention relates to a method and a device for the disposal of devices.
  • such devices which comprise foams containing blowing agents
  • they are introduced into a chamber via a chamber door.
  • the foam materials are irradiated and / or irradiated to enable the plastic foam to detach under this fluid flow.
  • the cell structure is destroyed to such an extent that the blowing agent contained therein is released.
  • the irradiation and / or irradiation is carried out by means of a cooled fluid stream, preferably water.
  • the temperature is chosen so that the fluid flow has a temperature below the boiling point of the blowing agent. As a result, the blowing agents released become liquid or remain liquid.
  • the completely destroyed PUR flakes or particles are further ground or slurried in order to finally destroy the porous cell structure - where it is still present.
  • a successor tank there is a separation depending on the specific weight of the individual components.
  • the liquid blowing agent e.g. B. the CFC (Rll)
  • Rll the CFC
  • the blasting agent consisting of water floats on the blowing agent.
  • the polyurethane which has largely been freed from the blowing agent and has a specific weight of> 1, hovers in an intermediate layer.
  • the individual components can then be separated further, i.e. the polyurethane is separated from the usually aqueous fluid stream and from the blowing agent.
  • the polyurethane is separated from the usually aqueous fluid stream and from the blowing agent.
  • the method according to the invention and the device according to the invention make it possible to ensure that, in connection with the disposal of such devices, the environment is again significantly less polluted than before.
  • the treatment chamber is separated from the environment via one or more locks.
  • a siphon-like aqueous lock is preferably used, through which the devices to be disposed of are fed to the treatment chamber.
  • the treatment chamber is hermetically shielded from the outside and separated (encapsulated) before, during and after the treatment. If it was previously necessary to always open the treatment chamber again in order to introduce new devices to be disposed of and to remove residual materials that can no longer be broken down, with the result that at least during this process step dangerous and environmentally harmful substances are removed from the chamber leaked, this step, which is dangerous for the environment, is now avoided due to the permanent hermetic sealing of the treatment chamber.
  • the devices to be disposed of are now introduced into the treatment chamber via the preferably siphon-type water lock and, if necessary, there dig, for example mechanically separated into fragments by comminution tools, which are then preferably processed further in accordance with the method known from WO 93/11885 A1.
  • the further separation and reprocessing of the fluid abrasive, the separation and removal of the blowing agent and the further treatment of, for example, the polyurethane foam can be carried out at least largely similarly to the previously published WO 93/11885 A1.
  • the treatment chamber connects directly to the siphon-type lock, i.e. it is usually provided in or above the immersion channel adjoining the immersion channel of the siphon-type lock.
  • the preferably siphon-type lock is separated from the treatment chamber in such a way that the devices to be disposed of which are to be supplied to the treatment chamber via the siphon-type lock first leave the fluid barrier in the lock and are supplied to the actual treatment chamber via an intermediate channel become.
  • the abrasive used in the treatment chamber for example the propellant that settles out, has no direct contact with the liquid in the siphon-type lock.
  • This further avoids the fact that more and more pollutants can accumulate in the liquid in the siphon-like lock during the process, which, for example, degasses via the open immersion channel of the lock (via which the devices to be disposed of are fed to the treatment chamber) can.
  • the treatment chamber has at least one siphon-like further lock for bringing out the cleaned parts, which generally consist of metal and are not further comminuted and / or processed in this treatment chamber can. This also realizes a "gas barrier" to avoid any environmental pollution.
  • Another advantage of the solution according to the invention is that the entire work in the treatment chamber is carried out in a "closed gas bubble" shielded from the outside, with no new air being introduced from the outside.
  • This also opens up the possibility that the Work in the treatment chamber can be carried out in a protective gas atmosphere, which is of particular importance because the foam materials to be disposed of generally contain substances such as isopentane, for example, and already contain more than 1. 2% of a substance such as isopentane in an air mixture at a temperature of over 20 * means an absolute risk of explosion.
  • a certain protective gas can also be introduced into the treatment chamber via corresponding, closed supply lines suctioned off or, above all, a corresponding pressure can be set in order to possibly carry out the work in the gas bubble at a level which is higher or lower than atmospheric pressure, that is to say at excess or low pressure.
  • FIG. 1 a schematic representation of a functional structure of a system for the disposal of devices with plastic foam containing blowing agent, in particular polyurethane, and
  • FIG. 2 an embodiment example modified from FIG. 1.
  • FIG. 1 shows a treatment chamber 1 for the disposal of devices, in the exemplary embodiment shown for example for the disposal of cooling devices, for example, which contain polyurethane foams with CFC blowing agents, such as, for example, Frigen R11.
  • CFC blowing agents such as, for example, Frigen R11.
  • a liquid lock In front of the treatment chamber 1 is a liquid lock, in the exemplary embodiment shown a siphon-like liquid lock, in which water is used as the liquid.
  • the liquid lock 3 comprises an immersion channel 3 ', via which devices 7 to be disposed of can be immersed in the liquid.
  • the immersion channel 3 ′′ of the siphon-like liquid lock 3 adjoins a transfer section 9 located below, the liquid level 11 being so high that a gas barrier from the outside to the inside of the treatment chamber 1 is achieved.
  • a transport device 13 in the form of a slightly increasing feed path 15 is provided in the ascending channel 3 ", which already merges into the treatment chamber 1 or forms part of the treatment chamber, which leads to a comminution device 17, preferably in the form of a rotor shear where the devices to be disposed of are cut into smaller fragments.
  • a transport device 21 running essentially with a vertical component, preferably in the form of a screw conveyor, which leads to a work station 22 located in the treatment chamber 1, adjoins a collecting and feeding station 19 located below.
  • the work station 22 comprises a spray device 23 with at least some high-pressure nozzles 25.
  • a suitable conveyor 37 can also again, for example in the form of a Screw conveyor, can be provided to deliver the solid parts to the outside.
  • the solid parts discharged to the outside at the outlet channel are then sprayed and cleaned by means of a spray device 38.
  • the devices 7 to be disposed of, for example, are fed into the immersion channel 3 'of the liquid lock 3. Immersion takes place with the device open so that as much of the air as possible can escape from the device.
  • the device can be moved forward by suitable conveying means, for example by a piston 40, which is only indicated in FIG. 1 and plunges the device down into the water.
  • the device 7 is fed to the transport device 13, which in the exemplary embodiment shown leads into the ascending channel 3 "with a slightly rising component.
  • the arrangement can be made using rollers be such that the devices automatically move through the buoyancy to the shredding device 17. Otherwise suitable conveying means, for example revolving chains, can be provided in the liquid medium which move the devices forward.
  • the devices are cut into fragments.
  • Metal parts and polyurethane parts adhere and are still held, usually sink due to the higher weight than the specific weight of the liquid medium, which usually consists of water, and are detected there at the collecting and feeding station 19 by the transport device 21 and to the entry side 27 of the Work station 22 consisting of a rotating drum 29 and a spray device 23.
  • the conveying device can be such that at least a certain percentage of these suspended matter is always removed from the conveying device are detected and also fed to the work station 22.
  • the drum 29 is aligned with its axis slightly falling towards its outlet end 31, so that the inserted fragments are guided longitudinally through the drum 29 during the rotational movement. At the same time, they are preferably irradiated by non-rotating high-pressure nozzles 25, as is basically described in WO 93/11885 A1. Due to the high impact pressure of the blasting agent, in which solid particles can also be found, the polyurethane foam parts are increasingly destroyed, so that the blowing agent bound therein, usually CFCs, is released.
  • the propellant can be pumped out via a lower propellant line 45 at the bottom of the collecting device 43 and can be completely or almost completely separated from any water residues that may still be present, possibly via subsequent further settling and separation tanks.
  • the collecting and calming container 46 for the propellant can also be connected to a gas cleaning device 49 via a degassing line 47.
  • liquid-permeable collecting device 43 leading to a drain line 51 is provided below the sieve-shaped drum device 29, via which the remnants of the PU foam still being formed and the water (liquid medium) are now fed, for example, to a fine mill 53 can be, whereby the cell walls of the foam particles that have not yet been completely destroyed are finally destroyed and the residues of blowing agents (and additionally, for example, CO 2 ) that are still contained therein are released.
  • the last necessary steps for degassing the foam particles are carried out in a subsequent degassing station 55, which is likewise connected to an already mentioned gas cleaning device 49 via a line 56.
  • the degassing station can, for example, comprise a vacuum degasser known per se.
  • the water residues still present are separated off via a water separator 57 which is further downstream of the degassing station 55 and is fed to a downstream high-pressure pump 61 via a water purifier 59, via which the fluid can again be fed at high pressure to the spray device 23 in the treatment chamber 1.
  • the PUR material thus freed from the water can then be fed to a catch basin 63.
  • the gas mixture (gas bubble) formed simultaneously in the treatment chamber can also be connected to the gas cleaner 49 via a further gas line 65.
  • the gases and vapors, which are not dangerous for the environment, can then be released via an exhaust air line 67, and here, too, further filter systems, not shown and described, can be connected downstream.
  • the treatment chamber 1 i.e. in particular in the area of their gas bubble 39, can at least be connected to a gas line, via which controlled gas can be supplied or discharged in order to determine the size of the gas bubble and thus the height of the liquid level in the treatment chamber, i.e. in the ascending channel 3 "of the liquid lock 3.
  • the pressure in the treatment chamber can also be set, for example, to a pressure above or below atmospheric pressure.
  • a protective gas can also be introduced which is suitable for processing proves to be particularly favorable.
  • the structure described shows that the gas bubble is relatively small, furthermore no air is supplied from the outside during the entire process and no gases can escape to the outside unhindered, and that, above all, by cutting the devices under water into smaller or larger fragments using the rotor shears, no static charge and ignition or even explosion can occur here either.
  • FIG. 2 in which a modification to the exemplary embodiment according to FIG. 1 is shown, the same parts or parts having the same function being provided with the same reference symbols as in the exemplary embodiment according to FIG. 1.
  • the essential difference in the embodiment according to FIG. 2 compared to the embodiment according to FIG. 1 is that here the siphon-like liquid lock 3 is separated from the actual treatment chamber. That is to say that the separating liquid provided in the lock 3 in its immersion and emerging channel 3 * * and 3 ", preferably in the form of water, does not contain the spray liquid used in the treatment chamber or the spray liquid collecting there on the lower floor 41 communicates.
  • the devices to be disposed of are optionally fed to the immersion channel 3 'of the liquid lock via a feed opening, using suitable transport devices, and are lifted over this into an intermediate channel 71. There they are fed to the comminution device 17 in a gas bubble 39 which is formed and cut into fragments. The fragments are then again fed via a downstream transport device 21 to an otherwise identical work station 22 with a rotating drum 29 and a high-pressure spray device 23.
  • foam particle residues accumulating below the drum and the spray liquid and the blowing agent are collected together and fed to a fine mill 53 via a common drain line 75.
  • the blowing agent is now also supplied to the gas cleaning device 49 via the degassing station 55 arranged downstream of the fine mill 53, in which the blowing agent present in gaseous form is now separated and fed to a blowing agent collecting container 46.
  • a further spray device 34 can be arranged at the outlet of the second liquid lock 33 for cleaning the discharged and non-degradable parts (usually made of iron, aluminum, copper, etc.).
  • the arrangement can also be such that the cooling devices in the intermediate channel 71 first immerse again in a further liquid basin and in the liquid, preferably with a crushing device 17 consisting of rotor shears, not in the gaseous but in the liquid medium are divided and separated in order to further counteract static charge and the risk of a possible explosion.
  • the volume of the gas bubble 39 can also be reduced further.
  • the further advantage is realized that the gas bubble itself has no direct contact with the liquid provided in the first siphon-type lock 3.
  • the further arrangement for collecting and separating the blowing agent from polyurethane foam etc. could then be carried out in a manner similar to that in the exemplary embodiment according to FIG. 1 via the treatment chamber described there.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Un procédé amélioré et un dispositif servent à éliminer des appareils, de préférence des appareils avec des matières alvéolaires qui contiennent des agents gonflants, dans une chambre de traitement fermée (1). Les appareils à éliminer (7) sont amenés à la chambre de traitement (1) à travers un sas de liquide (3) similaire à un siphon et les matières solides produites dans la chambre de traitement (1) en sont éliminées à travers un autre sas (33) similaire à un siphon. Les appareils à éliminer (7) sont séparés en leurs divers composants à l'intérieur d'une bulle de gaz hermétiquement fermée formée dans la chambre de traitement (1).
PCT/EP1995/003131 1994-08-18 1995-08-07 Procede et dispositif d'elimination d'appareils WO1996005920A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33429/95A AU3342995A (en) 1994-08-18 1995-08-07 Apparatus disposal process and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944429190 DE4429190C1 (de) 1994-08-18 1994-08-18 Verfahren und Vorrichtung zur Entsorgung von Geräten
DEP4429190.6 1994-08-18

Publications (1)

Publication Number Publication Date
WO1996005920A1 true WO1996005920A1 (fr) 1996-02-29

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Application Number Title Priority Date Filing Date
PCT/EP1995/003131 WO1996005920A1 (fr) 1994-08-18 1995-08-07 Procede et dispositif d'elimination d'appareils

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AU (1) AU3342995A (fr)
DE (1) DE4429190C1 (fr)
WO (1) WO1996005920A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991002638A1 (fr) * 1989-08-21 1991-03-07 Voers Lau Ove Procede d'elimination, de condensation et de recuperation de gaz propulseurs a partir de matiere en mousse et d'autres matieres auxquelles le procede est applicable sans danger pour l'environnement
WO1993011885A1 (fr) * 1991-12-11 1993-06-24 Josef Lichtblau Procede pour l'elimination de produits mousses contenant des agents d'expansion, notamment de produits mousses tels que polyurethannes utilises comme materiau isolant dans des appareils de refrigeration
EP0549067A2 (fr) * 1991-12-23 1993-06-30 Hoogovens Groep B.V. Procédé et dispositif pour l'élimination continue de restes d'encrassement de déchets métalliques

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909380A1 (de) * 1989-03-22 1990-09-27 Pd Physik & Datentechnik Gmbh Verfahren und vorrichtung zur entsorgung und verarbeitung von leuchtstoffroehren und gasdrucklampen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991002638A1 (fr) * 1989-08-21 1991-03-07 Voers Lau Ove Procede d'elimination, de condensation et de recuperation de gaz propulseurs a partir de matiere en mousse et d'autres matieres auxquelles le procede est applicable sans danger pour l'environnement
WO1993011885A1 (fr) * 1991-12-11 1993-06-24 Josef Lichtblau Procede pour l'elimination de produits mousses contenant des agents d'expansion, notamment de produits mousses tels que polyurethannes utilises comme materiau isolant dans des appareils de refrigeration
EP0549067A2 (fr) * 1991-12-23 1993-06-30 Hoogovens Groep B.V. Procédé et dispositif pour l'élimination continue de restes d'encrassement de déchets métalliques

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Publication number Publication date
AU3342995A (en) 1996-03-14
DE4429190C1 (de) 1995-11-09

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