EP0486711B1 - Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet - Google Patents

Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet Download PDF

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Publication number
EP0486711B1
EP0486711B1 EP90122063A EP90122063A EP0486711B1 EP 0486711 B1 EP0486711 B1 EP 0486711B1 EP 90122063 A EP90122063 A EP 90122063A EP 90122063 A EP90122063 A EP 90122063A EP 0486711 B1 EP0486711 B1 EP 0486711B1
Authority
EP
European Patent Office
Prior art keywords
liquid
compressed
air
articles
pressurized air
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.)
Expired - Lifetime
Application number
EP90122063A
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German (de)
English (en)
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EP0486711A1 (fr
Inventor
Ernst Eichholzer
Alfred Schnyder
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.)
Eichholzer Ernst
Original Assignee
Individual
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8204729&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0486711(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to EP90122063A priority Critical patent/EP0486711B1/fr
Priority to AT90122063T priority patent/ATE109553T1/de
Priority to DE59006720T priority patent/DE59006720D1/de
Publication of EP0486711A1 publication Critical patent/EP0486711A1/fr
Application granted granted Critical
Publication of EP0486711B1 publication Critical patent/EP0486711B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/50—Ducting arrangements from the source of air or other gases to the materials or objects being dried

Definitions

  • the present invention relates to a device for blowing off a liquid from an object wetted by the same, wherein a plurality of high-frequency pulsating, abrupt shocks of at least approximately parallel compressed air jets are directed against the object in order to drive the liquid away and between the compressed air jets and the drying object an at least approximately perpendicular to the flow direction of the compressed air jets relative movement is generated.
  • EP-A-0 205 819 a device for blowing off a liquid from a liquid wetted with the same is known, in which a solvent polluting the environment is blown intermittently against spectacle lenses.
  • This device is intended for treating a given object, namely spectacle lenses and cannot be used for a wide variety of objects.
  • Next is a part of the blow nozzles Device according to EP-A-0 205 819 stationary. Because the jet directions are at an angle to one another and, moreover, the air discharge nozzles can be moved in a very limited manner with respect to the objects to be dried, drying with such a device requires a very long period of time.
  • the invention seeks to remedy this.
  • the invention as characterized in claim 1, achieves the object of showing a device for blowing off a liquid from an object wetted by the same, in which two air jet dispensing devices arranged at a mutual distance, by means of which compressed air jets pulsate intermittently against the object to be dried are blown, are connected to one another in such a way that they are moved parallel and in opposite directions to one another during operation, the compressed air jets emitted by the two air jet delivery devices being directed toward one another.
  • Figure 1 shows a schematically illustrated container 1, which is designed as a trough and e.g. is arranged in a street consisting of various treatment containers of a system for the surface treatment of objects.
  • a system for the surface treatment of objects e.g. copper plating, chrome plating, silver plating, generally e.g.
  • Electroplating takes place, among other things also electrolyte baths, but also baths for currentless processes such as Degreasing, pickling, phosphating and electroless metal deposition baths, but also baths for the anodic oxidation of aluminum, baths for dip painting can be present.
  • Such systems are generally known in surface technology.
  • Air jet delivery devices are arranged along the two longitudinal walls of the container 1 and are configured as follows. Each air jet delivery device has a side member 3, which in this example guided in the height direction of the container 1 is movable.
  • the drive is carried out by a motor 4 with adjustable speed, which is connected to the longitudinal beams 3 by means of chain sprockets 5 and chains 6, for example.
  • the drive transmission is designed such that the side members can be moved in the same direction or in opposite directions to one another, ie if, for example, the side member 3 on the left moves from top to bottom, the side member 3 on the right simultaneously moves from bottom to top.
  • a number of tubes 7, closed on both sides, are connected to each longitudinal beam.
  • the tubes 7 are axially aligned with one another and run horizontally in this example.
  • the number of tubes 7 shown is purely for drawing reasons, for example. For example, 20 such tubes 7 may be present.
  • Each tube 7 has air outlet openings 8 which are arranged along a surface line of the respective tubes 7 in such a way that air jets emerging therefrom are directed at least approximately in a horizontal direction against the objects 2 to be treated.
  • the axial length of the tubes is approximately 150 mm, each tube containing 15 air outlet openings 8 at a mutual distance of 10 mm.
  • the compressed air is supplied via a compressor 9, which sucks in air from the environment.
  • the compressed air is fed from the compressor 9 to the tubes 7 via hose lines 10.
  • hose lines 10 For drawing reasons, only one hose line 10 is shown in each case.
  • the compressed air supply to the individual tubes 7 is controlled by solenoid valves 11, such a solenoid valve 11 being assigned to each individual tube. These solenoid valves 11 are individually connected via control lines 12 to a control device 13, the function of which will be explained below.
  • a schematic Drain pipe socket 14 is drawn, via which the liquid chipped off from the objects 2 is removed, possibly disposed of, or also returned to a treatment stage of the system after possible treatment.
  • Each tube 7 is supplied with compressed air via a magnetic valve 11 assigned to it.
  • the magnetic valves 11 are controlled by a microprocessor in the control device 13. Both the opening time of the solenoid valves and the frequency of opening and closing them can be set by the control device 13 depending on the application.
  • the pressure of the compressed air supplied is approximately 4 to 6 bar.
  • the solenoid valves 11 can be controlled by the control device 13 in such a way that not all tubes 7 are acted upon simultaneously, but successively, in groups, etc. As an example, it should also be stated that a compressed air blast occurs from the respective air outlet openings 8 every 0.4 seconds.
  • the frequency and duration of the compressed air pulses are determined in the control device 13 in accordance with empirical values, test runs that have been carried out temporarily, such that as soon as the remaining quantity of the liquid returns to the original area, the next compressed air pulse hits it in order to cause it to drift away again.
  • the longitudinal beam 3 with the tubes 7 becomes extremely slow, e.g. Moved 25 mm / second from top to bottom, so that two successive bursts of compressed air hit practically the same area, so that actually the successive regions of the impact points of the compressed air bursts overlap each other by a multiple, with the displacement of two successive impact areas in the vertical direction just for example Is 10 mm. While the nozzle assembly on the left in FIG. 1 moves downward along the objects, the one on the right moves upward.
  • Figure 2 shows purely schematically another application in a system for surface treatment.
  • the container 1 is again shown in a purely schematic representation.
  • the objects 2 to be dried and the longitudinal members 3 are drawn with the tubes 7.
  • a further nozzle assembly 16 for flushing water is arranged above each nozzle assembly 3, 7 for the compressed air, and in this embodiment there are nozzles for the smallest amounts of water with optimal scattering.
  • This version is intended for use, for example, between an electrolyte bath and an economy flushing device.
  • the objects 2 lifted out of the electrolyte bath and inserted into the container 1 are initially exposed to the compressed air blasts in accordance with the above-mentioned procedure in order to knock off the electrolyte and to knock it back accordingly.
  • the electrolyte portion remaining on the objects in the form of a film dries out completely.
  • these objects are exposed to the water jets during the first or during a second pass, the amounts of water being selected in such a way that the residual electrolyte does not dry out until it is inserted into the subsequent so-called economy rinse bath.
  • FIG. 3 shows, again purely schematically, a further embodiment, in particular for pure drying, thus blowing off rinse water, for example. It is known that one goal of all types of drying is to achieve so-called spot-free drying, ie that no drops or traces of drops remain on the dried objects. Since even the smallest droplets are continuously destroyed and blown off by the air blasts, the above-mentioned goal can be achieved visually with the method according to the invention.
  • the container 1 also has a heat protection jacket, one on the side walls and one on the bottom thermal insulation 17.
  • the space between the wall of the container 1 and the inner container is designed as a flow channel 19 which leads to the interior of the container 1.
  • the liquid on the surfaces of the objects 2 is knocked off again by the compressed air blasts, the drops fly or flow to the bottom of the container 1 in order to flow away through a drain connection (not shown).
  • a drain connection not shown.
  • One or more fans 21 are arranged in the bottom of the trough at a point between the same and the intermediate floor 20. These blowers 21 suck the moist air from the interior of the container 1 and convey it through drying devices 22. From these drying devices 22, the re-dried air flows, see arrow 23, into the space acting as a flow channel 19 between the inner container 18 and the outer wall of the container 1 to flow back through the passages 19 into the actual treatment room.
  • the moisture in the air which forms in the air in the container 1 is destroyed by the circuit described, which includes blowers 21 and drying devices 22, so that again and again dry air flows into the treatment room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Detergent Compositions (AREA)

Claims (2)

  1. Dispositif pour enlever par soufflage un liquide d'un objet mouillé par celui-ci, comportant un récipient (1) pour recevoir les objets à sécher et dans lequel il est prévu deux systèmes de production de jets d'air espacés l'un de l'autre et entre lesquels peuvent être disposés les objets respectifs à traiter, ainsi qu'un entraînement relié de façon motrice aux systèmes de production de jets d'air de telle sorte que ceux-ci soient déplacés en marche parallèlement et dans des sens mutuellement inverses, chaque système de production de jet d'air comportant une succession d'éléments tubulaires (7) disposés les uns à côté des autres, orientés mutuellement dans une direction axiale et reliés à une source d'air comprimé, chaque élément tubulaire comportant un certain nombre d'orifices (8) de sortie d'air comprimé qui sont disposés de telle sorte que les jets d'air comprimé produits par les deux systèmes de production de jets d'air soient dirigés l'un vers l'autre, et un grand nombre d'impulsions analogues à des chocs et de fréquences élevées produites par des jets d'air comprimé, orientés au moins approximativement parallèlement les uns aux autres, sont dirigées sur les objets de façon à enlever le liquide et un mouvement relatif dirigé au moins approximativement perpendiculairement à la direction d'écoulement des jets d'air comprimé est engendré entre les systèmes de production de jets d'air et les objets à sécher.
  2. Dispositif selon la revendication 1, caractérisé en ce que chaque élément tubulaire (7) est relié, par l'intermédiaire d'une soupape de commande particulière (11), avec la source d'air comprimé et toutes les soupapes de commande sont reliées à un dispositif de commande (13) à l'aide duquel la durée d'ouverture et la fréquence d'ouverture de chaque soupape de commande peuvent être définies séparément.
EP90122063A 1990-11-19 1990-11-19 Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet Expired - Lifetime EP0486711B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90122063A EP0486711B1 (fr) 1990-11-19 1990-11-19 Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet
AT90122063T ATE109553T1 (de) 1990-11-19 1990-11-19 Vorrichtung zum abblasen einer flüssigkeit von einem gegenstand.
DE59006720T DE59006720D1 (de) 1990-11-19 1990-11-19 Vorrichtung zum Abblasen einer Flüssigkeit von einem Gegenstand.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90122063A EP0486711B1 (fr) 1990-11-19 1990-11-19 Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet

Publications (2)

Publication Number Publication Date
EP0486711A1 EP0486711A1 (fr) 1992-05-27
EP0486711B1 true EP0486711B1 (fr) 1994-08-03

Family

ID=8204729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122063A Expired - Lifetime EP0486711B1 (fr) 1990-11-19 1990-11-19 Dispositif pour l'enlèvement par soufflage d'un liquide se trouvant sur un objet

Country Status (3)

Country Link
EP (1) EP0486711B1 (fr)
AT (1) ATE109553T1 (fr)
DE (1) DE59006720D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013020096A1 (de) * 2013-11-30 2015-06-03 Ludy Galvanosysteme Gmbh Verfahren und Vorrichtung zur Trocknung von Galvanisiergut

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433037A1 (de) * 1993-10-05 1995-04-06 Lpw Anlagen Gmbh Verfahren zur Aktivierung von Oberflächen an Gegenständen, die eine galvanotechnische Beschichtung erfahren
DE4336085A1 (de) * 1993-10-22 1995-04-27 Atotech Deutschland Gmbh Verfahren zum Entfernen von Flüssigkeit von der Oberfläche eines benetzten Behandlungsgutes und Anordnung zur Durchführung des Verfahrens
DE4421010B4 (de) * 1994-06-20 2004-04-15 Lpw-Anlagen Gmbh Verfahren zur Abreinigung von Gegenständen im Rahmen einer galvanotechnischen Behandlung von Gegenständen in einer galvanotechnischen Anlage und Anlagen für die Durchführung der Verfahren
CH691927A5 (de) * 1996-08-16 2001-11-30 Galvatec Gmbh Vorrichtung zum gepulsten Ausgeben eines Mediums zur Behandlung von Oberflächen.
US5879532A (en) * 1997-07-09 1999-03-09 Masco Corporation Of Indiana Process for applying protective and decorative coating on an article
DE10038202C1 (de) * 2000-08-04 2002-04-18 Senit Gmbh & Co Kg Verfahren und Vorrichtung zum Trocknen von Gegenständen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787281A (en) * 1955-06-21 1957-12-04 Wilfred Adshead Improvements in coated paper drying machines
DE1272267B (de) * 1963-03-30 1968-07-11 Elitex Zavody Textilniho Duese fuer einen Duesentrockner zum Trocknen von insbesondere Textilien
EP0205819B1 (fr) * 1985-06-27 1990-10-31 Roag Système pour sécher sans taches des objets à surfaces humectées par un liquide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013020096A1 (de) * 2013-11-30 2015-06-03 Ludy Galvanosysteme Gmbh Verfahren und Vorrichtung zur Trocknung von Galvanisiergut
DE102013020096B4 (de) * 2013-11-30 2021-02-25 Ludy Galvanosysteme Gmbh Verfahren und Vorrichtung zur Trocknung von Galvanisiergut

Also Published As

Publication number Publication date
EP0486711A1 (fr) 1992-05-27
ATE109553T1 (de) 1994-08-15
DE59006720D1 (de) 1994-09-08

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