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EP0661109A1 - Dispositif pour le nettoyage, dégraissage et séchage de surfaces de bandes en mouvement - Google Patents

Dispositif pour le nettoyage, dégraissage et séchage de surfaces de bandes en mouvement Download PDF

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Publication number
EP0661109A1
EP0661109A1 EP94119483A EP94119483A EP0661109A1 EP 0661109 A1 EP0661109 A1 EP 0661109A1 EP 94119483 A EP94119483 A EP 94119483A EP 94119483 A EP94119483 A EP 94119483A EP 0661109 A1 EP0661109 A1 EP 0661109A1
Authority
EP
European Patent Office
Prior art keywords
chamber
cleaning
sheet
passage
oil
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.)
Withdrawn
Application number
EP94119483A
Other languages
German (de)
English (en)
Inventor
Herwig Müllerschön
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.)
Zibulla & Sohn Raziol-Schmierungstechnik GmbH
Original Assignee
Zibulla & Sohn Raziol-Schmierungstechnik 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 Zibulla & Sohn Raziol-Schmierungstechnik GmbH filed Critical Zibulla & Sohn Raziol-Schmierungstechnik GmbH
Publication of EP0661109A1 publication Critical patent/EP0661109A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work

Definitions

  • the invention relates to a device for cleaning and degreasing the surfaces of sheets in a continuous process with a roller device, a high-pressure water nozzle device, a pair of squeeze rollers and a blow-off device.
  • FIG. 1 of DE 27 09 979 A1 Such a device is shown schematically in FIG. 1 of DE 27 09 979 A1.
  • This device works for cleaning the surface of metal sheets not only with water, but with a wetting agent consisting of alkaline solutions, hydrocarbons, iron chelating agents and others, which not only require an increased use of energy, but also an increased effort to dispose of the constituents contained in the water, which are composed of these wetting agents, the washed-off oils and fats.
  • a concrete device is not disclosed in this document.
  • DE 33 33 221 C2 describes a device for the treatment of flat objects coated with layers, such as plastic films, paint or the like, in order to remove them with the aid of a volatile solvent.
  • This device comprises several successive processing areas, namely a rinsing area, a drying area and a blowing area with a blowing device in order to remove the acid or other treatment liquids from to blow away the top or bottom surface of the parts to be treated.
  • the solvent is applied to both sides of the plates with a pressure in the rinsing area of approx. 4 bar.
  • This device requires the use of solvents and a low, precisely defined transport speed of the parts to be cleaned, as well as complex disposal of the solvent and its components.
  • the parts are guided by means of a roller device into a cloud chamber and, subsequently, into an air spray chamber for blowing off the treatment liquid.
  • This device is very energy-intensive, since it requires a fan with an air flow of over 5 m3 / min at a pressure of over 184 mm / water column. Due to the wetting within a fog zone, the parts have to pass through this zone with a relatively low adjustable speed, because otherwise the solvents will have too little reaction time.
  • DE 27 13 516 C2 describes a non-generic device for degreasing objects, in which the objects to be degreased are treated in a first conveying zone by means of a hanging conveyor to a suitable, non-aqueous agent for cold degreasing and then sprayed with rinsing water in a second treatment zone.
  • the mixture then dripping from the objects consists of a degreasing agent, oil and other contaminants which are returned to a collecting container via an intermediate floor and a filter for separating solid dirt particles.
  • This method has the disadvantage of a low cleaning speed, the drying being dripped with a time component and thus being left to chance.
  • DE 23 23 766 C1 discloses a device for cleaning turned, standing and milled parts, which cleans these parts in an immersion bath and superimposes their movement by rotating a drum with a relative movement. Since the cleaning of sheet metal surfaces in an immersion bath causes the deflection of the material flow and this in turn requires an increase in the space available, such a device cannot be used for the rapid cleaning of sheet metal surfaces.
  • DE 32 01 880 A1 discloses a device for residue-free stripping of printed circuit boards, in which four process stations are designed as immersion baths and are therefore only provided with a low throughput speed. This cleaning process also works with alkaline and other chemical solvents and solution accelerators.
  • the invention has for its object to provide a compact device of the type mentioned in order to degrease sheet metal surfaces in a continuous production flow at a relatively high speed with the least possible expenditure of energy, toxic products and space requirements and dry, the cleaning liquid should ensure a relatively long service life and unproblematic disposal.
  • the above object is achieved in connection with the generic term mentioned at the outset solved that the jets of the high-pressure water nozzles are directed against the direction of travel of the sheet at an angle of less than 90 ° on the upper and / or lower side of the sheet on the top and / or bottom of the passage plane of the sheet and that to Water required for cleaning is conducted in a substantially closed cleaning chamber in a closed circuit and can be fed to the high-pressure water nozzle again in the cleaned state.
  • the device according to the invention in a further development of the invention is in the direction of passage of the sheet from a first sealing chamber, the cleaning chamber with a pair of transport rollers and the high-pressure water nozzles, from a drying chamber with at least one pair of squeezing rollers of a blow-off device, from a hot air chamber with on both sides of the passage level arranged hot air heaters and composed of a second sealing chamber.
  • the cleaning chamber is advantageously sealed off from the first sealing chamber and the drying chamber at the level of the passage level by means of a brush strip each permitting the passage of a sheet. Furthermore, the hot air chamber is sealed off from the drying chamber and from the second sealing chamber by two temperature-resistant rubber strips that overlap each other at the level of the passage level. As a result, any noteworthy escape of the cleaning liquid can be prevented, as can by sealing the two sealing chambers by means of a suction device.
  • the high-pressure water nozzles are designed as flat jet nozzles as follows:
  • the transverse extension or width of the flat jet forms an acute angle of preferably 60 ° with the direction of passage.
  • the flat jets of the individual nozzles are not hindered, so that such a nozzle arrangement results in very good efficiency.
  • the water pressure of these high-pressure water nozzles can be set between 70 bar and 150 bar, depending on the adhesive properties of the oil or grease to be washed off and the degreasing requirements.
  • the receptacle for the high-pressure water nozzles is set at an angle of approx. 15 ° to the perpendicular to the direction of passage of the sheet.
  • the transport rollers of the cleaning chamber like all the other rollers, form coated rollers with a high coefficient of friction, while in the subsequent drying chamber, two pairs of squeezing rollers interacting in this direction are arranged one behind the other on both sides of the pass plane.
  • a blow-off device with a low pressure and volume flow in the flow direction, the air flow of which is directed both against the flow direction and is provided with an outward-facing edge blowing device.
  • the cleaning chamber is connected to a collecting container for collecting the oil-fat-water emulsions, which is arranged below the cleaning chamber.
  • the cleaning liquid consisting of oil and water is fed into the collecting container via a drain pipe, which ends below the (in particular minimum) liquid level.
  • the oil and fat floating at the level of the collecting container is removed from a skimmer, e.g. withdrawn from a known conveyor belt-like skimmer and fed to an oil collection container for further disposal or recycling.
  • the oil-water emulsion below the level in the collecting container can be conveyed by a pump into a physical separating device, with which it is separated into its initial components, the water is pumped back into the collecting container and the components enriched with oil are pumped into a separate container for recycling if necessary to become.
  • the bottom area of the drying chamber is also connected to the collecting container via a check valve.
  • the device 10 is composed of a first sealing chamber 12, a cleaning chamber 13, a drying chamber 14, a hot air chamber 15 and a second sealing chamber 16 in the direction of flow according to the arrow 11 of a sheet, not shown.
  • the sheet to be cleaned After passing a roller device 17 at the entrance to the first sealing chamber 12, the sheet to be cleaned passes through a first brush strip 18 before it is gripped by the pair of transport rollers 19 and transported along the pass plane 20 between a pair of nozzle strips equipped with a large number of high-pressure water nozzles 21 .
  • These high-pressure water nozzles 21 are designed as flat jet nozzles as follows: The transverse extension or width of the flat jet of each nozzle 21 forms an acute angle ⁇ of preferably 60 ° with the direction of travel 11. This does not impede the adjacent flat jets. It also pushes the water to one edge of the board.
  • the cleaning water emerging from the high-pressure water nozzles 21 strikes the surfaces of the sheet to be degreased with an adjustable pressure between 70 bar and 150 bar, as a result of which they are quasi mechanically cleaned.
  • the direction of the jet width of the flat jet nozzles forms an angle ⁇ of approximately 60 ° with the direction of passage according to arrow 11.
  • the whole Nozzle holder body in the plan view of the figure to the vertical of the pass plane by about 15 ° against the pass direction according to the arrow 11.
  • the effect of the cleaning jet is not only surprisingly improved, but also the cleaning liquid together with the washed-off particles is pressed in the direction of an edge of the sheet to be cleaned.
  • the cleaned sheet metal After passing through a second brush strip 22 in the partition 23 between the cleaning chamber 13 and the drying chamber 14, the cleaned sheet metal is gripped by two pairs of squeezing rollers 24, 25. The adhering liquid films on the top and bottom of the sheet are rolled off. Thereafter, there is still a film of residual moisture on the sheet and a few drops of water on the edges, which are removed by the blow-off device 26 arranged below. In this blow-off device 26, the sheet is blown by the air simultaneously from below and above in the direction of the outer edge. Here, too, the air flow is directed against the flow direction according to arrow 11.
  • the direction of an air jet against the direction of flow is known in principle in a device of a different type in accordance with DE 22 51 123 C2 recognized at the outset, but there in an energy-intensive manner over the entire width of the housing and not, as in the present case, in an energy-saving manner within a locally restricted area within the drying chamber 14 limited.
  • the cleaned sheet in the pass plane 20 passes through two overlapping and temperature-resistant rubber strips 27, 28 (which can also consist of a suitable elastomer), which in the partition 29 between the Drying chamber 14 and the subsequent hot air chamber 15 are arranged. Additional rubber strips 30, 31 are located in the partition wall 32 between the hot air chamber 15 and the second sealing chamber 16.
  • a support roller 33 is located directly behind the rubber strips 27, 28 to support, in particular, shorter sheets.
  • a hot air heater 34, 35 is arranged both on the top and on the bottom, which are offset from one another in the direction of passage according to the arrow 11 in order to avoid their overheating. They have the function of drying the sheet metal surfaces by evaporation.
  • the two pairs of rubber strips 27, 28 and 30, 31 have the task of largely preventing the thermal energy introduced from being carried over.
  • a pair of transport rollers 36 is arranged downstream of the hot air heaters 34, 35.
  • the cleaning water loaded with oil and fat enters as an oil-fat emulsion via a drain pipe 37 a collecting container 38 arranged below the cleaning chamber 13, the end 37a of the drain pipe 37 ending below the minimum liquid level 39.
  • the cleaning chamber 13 is sealed at the bottom, and at the same time a calming of the liquid in the collecting container 38 is ensured.
  • the liquid from the drying chamber 14 also flows through a check valve 40 into the collecting container 38.
  • the check valve 40 prevents water mist from getting into the drying chamber 14 from the cleaning chamber 13.
  • the oil floating on the surface in the collecting container 38 is removed via a withdrawal device (so-called skimmer) 41 and passed into an oil collecting container 42.
  • the temporarily present emulsion of cleaning medium and washed-off oil is fed to a schematically illustrated physical separation device 44 via a pump 43.
  • the oil is suspended and drained off separately, while the specifically heavier water is returned to the collecting container 38 via a return hose 45.
  • the surfaces of metal sheets and boards can be cleaned, degreased and dried to such an extent in a rapid continuous process with little expenditure of energy, toxic products and space requirements that the cleaning liquid can be disposed of without problems.
  • the small amount of residual oil that may remain on the sheet metal surface is advantageous for the subsequent production steps.
  • the throughput speed achieved is at least 2 m / s.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP94119483A 1993-12-31 1994-12-09 Dispositif pour le nettoyage, dégraissage et séchage de surfaces de bandes en mouvement Withdrawn EP0661109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934345077 DE4345077C2 (de) 1993-12-31 1993-12-31 Vorrichtung zum Reinigen und Entfetten der Oberflächen von Blechen
DE4345077 1993-12-31

Publications (1)

Publication Number Publication Date
EP0661109A1 true EP0661109A1 (fr) 1995-07-05

Family

ID=6506582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119483A Withdrawn EP0661109A1 (fr) 1993-12-31 1994-12-09 Dispositif pour le nettoyage, dégraissage et séchage de surfaces de bandes en mouvement

Country Status (2)

Country Link
EP (1) EP0661109A1 (fr)
DE (1) DE4345077C2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939249C1 (de) * 1999-08-19 2000-09-21 Mvs Miete Vertrieb Service Ag Vorrichtung zum halbautomatischen Reinigen von starren, länglichen Flächengebilden, insbesondere Warn- oder Verkehrsleitbaken
WO2010028754A3 (fr) * 2008-09-13 2010-05-06 Sms Siemag Ag Dispositif de décalaminage
DE19904018B4 (de) * 1999-02-02 2010-11-25 Meissner, Werner Reinigungsanlage
CN102794274A (zh) * 2011-05-23 2012-11-28 深圳富泰宏精密工业有限公司 清洗设备
DE10124645B4 (de) * 2000-05-20 2016-01-21 Guggenberger Reinigungstechnik E.K. Vorrichtung zum Reinigen von Waschgut
WO2016026499A1 (fr) * 2014-08-22 2016-02-25 Flexo Wash Aps Procédé et appareil permettant le nettoyage de clichés en forme de plaque
CN105689312A (zh) * 2016-04-14 2016-06-22 广东嘉元科技股份有限公司 一种铜箔铜粉清除装置及使用方法
CN106140704A (zh) * 2016-08-26 2016-11-23 芜湖明特威工程机械有限公司 一种流水线式刃板洗板系统
EP2576868A4 (fr) * 2010-05-27 2017-04-05 MJ Liquid Solutions Inc. Procédé de traitement d'article en acier laminé
CN109590257A (zh) * 2018-11-13 2019-04-09 张宇洋 一种机械加工用自动除渣装置
CN110935676A (zh) * 2019-12-04 2020-03-31 张小云 一种石墨烯发热膜的制备装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017912A1 (de) * 2000-04-11 2001-10-18 Voith Paper Patent Gmbh Verfahren zur Reinigung von Rakelstäben
DE10124281A1 (de) * 2001-05-17 2002-11-28 Manfred Pluemer Verfahren und Vorrichtung zum Entfetten von bahnförmigen Metallblechen
DE102006003141A1 (de) * 2006-01-24 2007-07-26 Airmatic Gmbh Vorrichtung zur Bandreinigung mit Hochdruck-Vakuum-Technik und Bandniederhaltung
FR3057859B1 (fr) * 2016-10-25 2020-12-18 Supratec Dispositif de nettoyage de bande transporteuse comprenant une chanmbre de traitement et une chambre d'aspiration

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129919A (en) * 1978-02-27 1978-12-19 Lawrence R. Fitch Printed circuit board scrubber and dryer
JPS5699009A (en) * 1980-01-14 1981-08-10 Nisshin Steel Co Ltd Removing method for rolling mill oil in cold rolling work for metallic strip
JPS57116781A (en) * 1981-01-14 1982-07-20 Kobe Steel Ltd Washing and drying method
EP0061792A1 (fr) * 1981-03-25 1982-10-06 Shell Internationale Researchmaatschappij B.V. Système de nettoyage de câbles
US4391016A (en) * 1980-10-14 1983-07-05 Kabushiki Kaisha Kobe Seiko Sho Degreasing apparatus for elongated materials
US4920603A (en) * 1989-09-28 1990-05-01 Keim Kenneth J Industrial-type washing machine
JPH0593289A (ja) * 1991-07-04 1993-04-16 Sky Alum Co Ltd 洗浄液除去装置
JPH067749A (ja) * 1992-06-29 1994-01-18 Hitachi Chem Co Ltd 金属はく張り積層板の洗浄方法及び洗浄装置
JPH06106140A (ja) * 1992-09-30 1994-04-19 Kobe Steel Ltd 連続走行材の洗浄方法及び洗浄装置

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US3801387A (en) * 1971-10-18 1974-04-02 Chemcut Corp Etchant remover apparatus and method
DE2323766A1 (de) * 1973-05-11 1974-11-28 Schwanog Fabrik Fuer Feinmecha Verfahren und vorrichtung zum reinigen von dreh-, stanz-, fraesteilen und aehnlichen metallteilen
FR2255789A5 (en) * 1973-12-20 1975-07-18 Comec Machine for degreasing metal strip - a compact unit using plastic scrapers and tetrachloro-ethylene sprays with hot air drying
DE2434305C2 (de) * 1974-07-17 1983-09-29 Hans Höllmüller Maschinenbau GmbH & Co, 7033 Herrenberg Ätzanlage
AU507223B2 (en) * 1977-03-03 1980-02-07 Nippon Steel Corporation Cleaning cold rolled steel corporation
DE2713516C2 (de) * 1977-03-26 1987-03-12 Tri Innovations AB, Hisings Backa Vorrichtung zum Entfetten von Gegenständen
DE3201880A1 (de) * 1982-01-22 1983-08-04 Egbert 6106 Erzhausen Kühnert Verfahren zum rueckstandsfreien entschichten von leiterplatten und vorrichtung zur durchfuehrung des verfahrens
SE444101B (sv) * 1982-09-17 1986-03-17 Holmstrands Plaatindustri Ab Sett vid behandling av monsterkort med atervinning av losningsmedel och anordning for genomforandet av settet

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129919A (en) * 1978-02-27 1978-12-19 Lawrence R. Fitch Printed circuit board scrubber and dryer
JPS5699009A (en) * 1980-01-14 1981-08-10 Nisshin Steel Co Ltd Removing method for rolling mill oil in cold rolling work for metallic strip
US4391016A (en) * 1980-10-14 1983-07-05 Kabushiki Kaisha Kobe Seiko Sho Degreasing apparatus for elongated materials
JPS57116781A (en) * 1981-01-14 1982-07-20 Kobe Steel Ltd Washing and drying method
EP0061792A1 (fr) * 1981-03-25 1982-10-06 Shell Internationale Researchmaatschappij B.V. Système de nettoyage de câbles
US4920603A (en) * 1989-09-28 1990-05-01 Keim Kenneth J Industrial-type washing machine
JPH0593289A (ja) * 1991-07-04 1993-04-16 Sky Alum Co Ltd 洗浄液除去装置
JPH067749A (ja) * 1992-06-29 1994-01-18 Hitachi Chem Co Ltd 金属はく張り積層板の洗浄方法及び洗浄装置
JPH06106140A (ja) * 1992-09-30 1994-04-19 Kobe Steel Ltd 連続走行材の洗浄方法及び洗浄装置

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 17, no. 429 (C - 1095) 10 August 1993 (1993-08-10) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 209 (C - 1190) 13 April 1994 (1994-04-13) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 381 (C - 1226) 18 July 1994 (1994-07-18) *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 172 (M - 95) 31 October 1981 (1981-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 6, no. 208 (C - 130) 20 October 1982 (1982-10-20) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904018B4 (de) * 1999-02-02 2010-11-25 Meissner, Werner Reinigungsanlage
DE19939249C1 (de) * 1999-08-19 2000-09-21 Mvs Miete Vertrieb Service Ag Vorrichtung zum halbautomatischen Reinigen von starren, länglichen Flächengebilden, insbesondere Warn- oder Verkehrsleitbaken
DE10124645B4 (de) * 2000-05-20 2016-01-21 Guggenberger Reinigungstechnik E.K. Vorrichtung zum Reinigen von Waschgut
WO2010028754A3 (fr) * 2008-09-13 2010-05-06 Sms Siemag Ag Dispositif de décalaminage
EP2576868A4 (fr) * 2010-05-27 2017-04-05 MJ Liquid Solutions Inc. Procédé de traitement d'article en acier laminé
CN102794274A (zh) * 2011-05-23 2012-11-28 深圳富泰宏精密工业有限公司 清洗设备
WO2016026499A1 (fr) * 2014-08-22 2016-02-25 Flexo Wash Aps Procédé et appareil permettant le nettoyage de clichés en forme de plaque
CN105689312A (zh) * 2016-04-14 2016-06-22 广东嘉元科技股份有限公司 一种铜箔铜粉清除装置及使用方法
CN105689312B (zh) * 2016-04-14 2017-12-08 广东嘉元科技股份有限公司 一种铜箔铜粉清除装置及使用方法
CN106140704A (zh) * 2016-08-26 2016-11-23 芜湖明特威工程机械有限公司 一种流水线式刃板洗板系统
CN109590257A (zh) * 2018-11-13 2019-04-09 张宇洋 一种机械加工用自动除渣装置
CN110935676A (zh) * 2019-12-04 2020-03-31 张小云 一种石墨烯发热膜的制备装置

Also Published As

Publication number Publication date
DE4345077C1 (de) 1995-08-31
DE4345077C2 (de) 1999-09-23

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