EP0367125A1 - Méthode et dispositif pour le nettoyage, des objets avec des dissolvants nuisibles à l'environnement, notamment des carbures d'hydrogène halogénés - Google Patents

Méthode et dispositif pour le nettoyage, des objets avec des dissolvants nuisibles à l'environnement, notamment des carbures d'hydrogène halogénés Download PDF

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Publication number
EP0367125A1
EP0367125A1 EP89119946A EP89119946A EP0367125A1 EP 0367125 A1 EP0367125 A1 EP 0367125A1 EP 89119946 A EP89119946 A EP 89119946A EP 89119946 A EP89119946 A EP 89119946A EP 0367125 A1 EP0367125 A1 EP 0367125A1
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EP
European Patent Office
Prior art keywords
solvent
handling container
cleaned
processing space
cleaning
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
EP89119946A
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German (de)
English (en)
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EP0367125B1 (fr
Inventor
Peter Weil
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Individual
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Individual
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Publication date
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Priority to AT89119946T priority Critical patent/ATE86312T1/de
Publication of EP0367125A1 publication Critical patent/EP0367125A1/fr
Application granted granted Critical
Publication of EP0367125B1 publication Critical patent/EP0367125B1/fr
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Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/04—Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/006—Cabinets or cupboards specially adapted for cleaning articles by hand

Definitions

  • the invention relates to a method for cleaning objects with environmentally hazardous solvents, in particular halogenated hydrocarbons, in a system which is essentially closed during the cleaning process.
  • solvents can either lead to treatment plants or storage to pose significant environmental risks, for example if they are spilled and then get into the ground or into the groundwater.
  • particularly dangerous substances such as halogenated hydrocarbons (HKW)
  • HKW halogenated hydrocarbons
  • the object of the invention is therefore to provide a solution with which the transport and in particular the handling of such solvents is simplified, while at the same time reducing or completely avoiding the risk to people and the environment and with which in particular optimum utilization and recovery of the Solvent is achieved.
  • this object is achieved according to the invention in that a part of this solvent is conveyed into a processing space from a large-volume storage tank of solvent, that subsequently the objects to be cleaned are wetted with the solvent in the processing space and by this are cleaned, the solvent is conveyed back from the processing space into a collecting tank after one or more cleaning processes and / or the gas atmosphere in the processing space is filtered and cleaned before the cleaned objects are removed.
  • a very special advantage of the invention lies in the optimal utilization of a solvent by the partial removal or the removal of portions of solvent from the storage tank for fresh solvent, the availability of this solvent in the area of the processing space until it is so dirty that it leads to regeneration becomes. Once this level of contamination is reached, it can be returned to the second tank. This ensures that a comparatively resine or completely pure solvent is always available for the user of the system.
  • At least two storage chambers for essentially contaminated solvent on the one hand and pure solvent on the other hand are assigned to the processing space, a prewash stage being preceded by a main wash stage by means of the contaminated solvent.
  • This design makes economic process management possible in particular and is careful with the amounts of solvents, the frequency for regenerating contaminated solvents being additionally reduced.
  • two Storage chambers can also be provided a plurality of corresponding storage chambers, each of which can hold a volume of solvent necessary for the treatment.
  • the degree of soiling in the chambers can be higher, with the most contaminated solvent being prewashed in a prewash stage, with the subsequent, somewhat cleaner solvent, a second prewash stage is carried out until the final cleaning is finally carried out with the cleanest solvent. If the degree of soiling is so high in the heavily soiled stage that it is no longer sensible to prewash it, this last amount of solvent is then returned to the collecting tank and a very clean, fresh amount of solvent is fed back into the system.
  • storage chambers can also be filled with chemically similar substances for application.
  • an anti-corrosion agent can be applied to the cleaned objects from the application chamber or a release agent or a paint coating, an adhesive coating or the like without removing the objects to be treated from the system have to be ten.
  • the invention also provides a device which is equipped with two larger-volume storage tanks for solvents and a handling container for currently smaller volume solvent to be used.
  • Such a device has the advantage that larger amounts of solvent are available, but at the same time it can be ensured that only a small volume supply is currently available to the user, so that even improper handling cannot spill even small amounts.
  • the handling container is assigned a collecting tank for used solvent, the storage tank, handling container and collecting tank being effectively coupled.
  • a special embodiment of the invention consists in that at least two storage chambers for clean or slightly soiled solvent on the one hand and for heavily soiled solvent on the other hand are assigned to the handling container.
  • the handling container is first flooded with the amount of solvent assigned to it and after corresponding treatment cycles and thus corresponding contamination of the Solvent can then be drained into the container. Now the handling container can be flooded again with fresh solvent.
  • the effective positive coupling of the containers enables control in such a way that a backflow of used solvent into fresh solvent is avoided, as is overfilling of the handling container.
  • the invention also provides an overflow line to the collecting tank. This ensures that e.g. if the amount of fresh solvent is too large, the excess solvent is fed directly into the collecting tank, i.e. this also avoids the risk that, for example, the handling container will overflow.
  • the invention also provides for the handling container to be provided with a drip zone and / or an overflow gutter or drip gutter.
  • the draining zone can be designed so that the solvent drips directly back into the handling container or directly into the collecting tank.
  • the gas space of the handling container is provided with a circulating air cleaning device, this is provided in particular if larger-volume treatment rooms are also provided which are closed during the entire processing time.
  • the invention also provides that a circulation device and / or a spray device and / or an ultrasound oscillating device is provided in the handling container, ie aids that are known per se in a different context.
  • the invention also provides that the two storage tanks are arranged on a conveyor pallet and / or that the handling container is formed in one piece with the conveyor pallet and the tanks arranged thereon.
  • the solvents can be optimally reprocessed, i.e.
  • the environment is also relieved in this respect, the processing companies can also remove the residues in the solvent.
  • this shows a side view of a larger-volume device according to the invention.
  • the device has on a transport pallet 2 a larger-volume storage tank 3 for solvent, a collecting tank 4 for used solvent, and a handling tank, generally designated 5, which in the example shown is arranged on a trough frame 6 above the storage tank 3 and the collecting tank 4 , on.
  • the handling container 5 is designed as a closed housing 7 with a lid 8.
  • the handling container 5 has two storage chambers 3a and 4a in the bottom area, it being noted at this point that there can also be more than two such storage chambers. These storage chambers have a volume which is sufficient to hold a quantity of solvent, whether soiled or less soiled or pure, which is sufficient for the entire machining process.
  • At least one overflow nozzle 10 is provided in the handling container 5 for level control.
  • the storage tank 3 is connected to the handling container 5 via a coupling 11 and a coupling tube.
  • the handling container 5 can also be coupled to the collecting tank 4 with a further coupling 12 in the coupling tube.
  • the couplings 11 and 12 can be electrically connected to a computer, not shown.
  • a spray device 14 with spray nozzles 15 is provided in the interior of the container 5 in order to spray the workpieces to be treated.
  • the sprayed solvent is returned via a drip zone or the inclined floor 16 into the respective lower storage chambers 3a or 4a of the container 5, the fill level can also be monitored via sight glasses 17, as can the spray activity via sight glasses 18, which is only indicated in the figures is.
  • the gas space of the container 5, generally designated 19, is coupled to a circulating air cleaning device 20, the air is passed through a suction fan 21, for example through an activated carbon filter, and pumped back into the air space 19.
  • a condensation device for solvents (not shown in more detail) can be provided, with the possibility of returning the solvent, either directly into one of the storage tanks 3 or 4 or into the container 5 if the container 5 is very large in volume.
  • Both the cover 8 and the locking devices can be equipped electronically in such a way that, for example, the locks are only released when the coupling between the storage tank 3 and the handling container 5 and the collecting tank 4 is present.
  • the circuit can be such that when opening the cover 8 can only be opened when the air in the gas space 19 has been cleaned in order to avoid a swirling of the air over the solvent zone caused by lifting the cover. When closing, the circuit can then be reversed so that the handling container 5 can only be filled with solvent when the handling container is covered by the horizontal cover 8.
  • the device works as follows:
  • the workpiece or workpieces 9 to be treated is introduced into the gas space 19 of the container 5. Assuming that neither of the two storage chambers 3a or 4a are filled, one of the chambers is first flooded with such an amount of solvent that is sufficient for cleaning. Then the connection between the storage tank 3 and the handling container 5 is blocked.
  • the workpiece 9 is now sprayed from the storage chamber 3a via the spray device 15.
  • the solvent always flows back into the storage chamber 3a.
  • the cleaned workpiece 9 can be removed.
  • the storage chamber 3a remains closed to the environment with the now somewhat dirty solvent.
  • pre-cleaning using the solvent in chamber 3a can now begin.
  • the chamber 4a is flooded with fresh solvent, and the workpiece 9 can then be finally cleaned using this completely pure solvent.
  • the pre-cleaning agent is finally fed into the collecting tank 4.
  • the system can be replaced and the contaminated solvent can be regenerated. This also applies to filters that can also be regenerated when the solution is recovered tels.
  • the lid can be dispensed with, where appropriate, an annular suction of the container air can be provided u.
  • the device can also be used, e.g. Automatically operating spray heads or the like on robot arms which have to process adhesive, foam or similar curing materials during the inactive times of the spray heads, for example in such a way that the robot arm passes through a lock into the gas space 19 of the container 5 is inserted, cleaned after locking the locks and, if necessary, dried with air and then can be moved back to the working position via the lock without causing environmental pollution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP89119946A 1988-10-29 1989-10-27 Méthode et dispositif pour le nettoyage, des objets avec des dissolvants nuisibles à l'environnement, notamment des carbures d'hydrogène halogénés Expired - Lifetime EP0367125B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119946T ATE86312T1 (de) 1988-10-29 1989-10-27 Verfahren und vorrichtung zum reinigen, von gegenstaenden mit umweltgefaehrdenden loesungsmitteln, insbesondere halogenkohlenwasserstoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8813603U DE8813603U1 (de) 1988-10-29 1988-10-29 Vorrichtung zum Handhaben und Aufbewahren von umweltgefährdenden Lösungsmitteln
DE8813603U 1988-10-29

Publications (2)

Publication Number Publication Date
EP0367125A1 true EP0367125A1 (fr) 1990-05-09
EP0367125B1 EP0367125B1 (fr) 1993-03-03

Family

ID=6829397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119946A Expired - Lifetime EP0367125B1 (fr) 1988-10-29 1989-10-27 Méthode et dispositif pour le nettoyage, des objets avec des dissolvants nuisibles à l'environnement, notamment des carbures d'hydrogène halogénés

Country Status (13)

Country Link
US (1) US5169454A (fr)
EP (1) EP0367125B1 (fr)
JP (1) JPH03503980A (fr)
KR (1) KR900702080A (fr)
AT (1) ATE86312T1 (fr)
AU (1) AU632514B2 (fr)
BR (1) BR8907134A (fr)
DE (2) DE8813603U1 (fr)
DK (1) DK155090A (fr)
ES (1) ES2038391T3 (fr)
FI (1) FI90355C (fr)
HU (2) HUT62342A (fr)
WO (1) WO1990004663A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19502886A1 (de) * 1994-03-17 1995-09-21 Boehl Entlackung Gmbh Vorrichtung und Verfahren zur Entlackung von metallischem Entlackungsgut
WO1996024704A1 (fr) * 1995-02-07 1996-08-15 Peter Weil Procede de nettoyage d'objets a l'aide de solvants dans une chambre de traitement fermee

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU611312B2 (en) * 1988-07-22 1991-06-06 Commonwealth Industrial Gases Limited, The Solvent wash unit
EP0490501A3 (en) * 1990-12-11 1992-08-12 Imperial Chemical Industries Plc Cleaning of articles
DE4336704A1 (de) * 1993-10-27 1995-05-04 Wacker Chemitronic Verfahren und Vorrichtung zur Behandlung von scheibenförmigen Werkstücken mit einer Flüssigkeit
US5769912A (en) * 1995-10-16 1998-06-23 Mansur Industries Inc. System and method of vapor recovery in industrial washing equipment
KR970053126A (ko) * 1995-12-30 1997-07-29 김광호 물반점 방지를 위한 반도체 장치의 세정 방법 및 장치
NO315790B1 (no) * 2002-01-30 2003-10-27 Intel Sampling As Fremgangsmåte for å lösne og fragmentere belegg fra innsiden av rör
ITPD20020309A1 (it) * 2002-12-04 2004-06-05 Solvay Chimica Italia Spa Impianto per pulitura industriale con cabina
ITTO20030394A1 (it) * 2003-05-29 2004-11-30 Valmet Rotomec Spa Impianto di lavaggio per carrelli di macchine operatrici,
JP2006231272A (ja) * 2005-02-28 2006-09-07 Nachi Fujikoshi Corp 真空脱脂洗浄装置
JP2006231273A (ja) * 2005-02-28 2006-09-07 Nachi Fujikoshi Corp 真空脱脂洗浄装置
US20190054511A1 (en) * 2016-02-09 2019-02-21 Elwema Automotive Gmbh Industrial cleaning installation with vapour condensation and related methods
DE102019118237A1 (de) * 2019-07-05 2021-01-07 Krones Aktiengesellschaft Eingriff, Schleuse und Roboterarmmodul für einen Roboter in der Lebensmittelindustrie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479389C (de) * 1927-09-21 1929-07-15 Alexander Wacker Dr Vorrichtung zum Reinigen und Entfetten von Metallgegenstaenden
US4056114A (en) * 1975-06-03 1977-11-01 Boutillette Arthur A Parts washer and filter assembly therefor
DE3433502A1 (de) * 1984-09-12 1986-03-20 Relectronic GmbH, 8045 Ismaning Einrichtung zum reinigen von bauteilen oder geraeten
DE8701375U1 (de) * 1987-01-29 1987-08-06 Schmitz, Rudolf, 5205 St Augustin Vorrichtung zum Reinigen mechanischer Geräte, Kleinteile und/oder elektronischer Schalteinheiten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079286A (en) * 1962-03-02 1963-02-26 Detrex Chem Ind Enclosed cold solvent spray cleaner
US4409999A (en) * 1981-08-07 1983-10-18 Pedziwiatr Edward A Automatic ultrasonic cleaning apparatus
US4560417A (en) * 1981-12-30 1985-12-24 Technomex Development, Ltd. Decontamination method for semiconductor wafer handling equipment
DE3412007C2 (de) * 1984-03-31 1987-02-26 Dürr Gmbh Verfahren zur Reinigung von Werkstücken mittels eines flüssigen Lösemittels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479389C (de) * 1927-09-21 1929-07-15 Alexander Wacker Dr Vorrichtung zum Reinigen und Entfetten von Metallgegenstaenden
US4056114A (en) * 1975-06-03 1977-11-01 Boutillette Arthur A Parts washer and filter assembly therefor
DE3433502A1 (de) * 1984-09-12 1986-03-20 Relectronic GmbH, 8045 Ismaning Einrichtung zum reinigen von bauteilen oder geraeten
DE8701375U1 (de) * 1987-01-29 1987-08-06 Schmitz, Rudolf, 5205 St Augustin Vorrichtung zum Reinigen mechanischer Geräte, Kleinteile und/oder elektronischer Schalteinheiten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19502886A1 (de) * 1994-03-17 1995-09-21 Boehl Entlackung Gmbh Vorrichtung und Verfahren zur Entlackung von metallischem Entlackungsgut
WO1996024704A1 (fr) * 1995-02-07 1996-08-15 Peter Weil Procede de nettoyage d'objets a l'aide de solvants dans une chambre de traitement fermee

Also Published As

Publication number Publication date
FI90355C (fi) 1994-01-25
EP0367125B1 (fr) 1993-03-03
AU632514B2 (en) 1993-01-07
DE58903661D1 (de) 1993-04-08
ES2038391T3 (es) 1993-07-16
HU904049D0 (en) 1992-03-30
US5169454A (en) 1992-12-08
AU4505289A (en) 1990-05-14
DE8813603U1 (de) 1988-12-22
FI90355B (fi) 1993-10-15
KR900702080A (ko) 1990-12-05
DK155090D0 (da) 1990-06-27
ATE86312T1 (de) 1993-03-15
WO1990004663A1 (fr) 1990-05-03
BR8907134A (pt) 1991-02-13
JPH03503980A (ja) 1991-09-05
HUT62342A (en) 1993-04-28
FI903203A0 (fi) 1990-06-26
DK155090A (da) 1990-06-27

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