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EP0453801B1 - Dispositif pour pulvériser une dispersion - Google Patents

Dispositif pour pulvériser une dispersion Download PDF

Info

Publication number
EP0453801B1
EP0453801B1 EP91104899A EP91104899A EP0453801B1 EP 0453801 B1 EP0453801 B1 EP 0453801B1 EP 91104899 A EP91104899 A EP 91104899A EP 91104899 A EP91104899 A EP 91104899A EP 0453801 B1 EP0453801 B1 EP 0453801B1
Authority
EP
European Patent Office
Prior art keywords
plunger
coupling
spray head
spray
nozzle
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
EP91104899A
Other languages
German (de)
English (en)
Other versions
EP0453801A3 (en
EP0453801A2 (fr
Inventor
René Schmitter
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.)
Lonza AG
Original Assignee
Lonza AG
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 Lonza AG filed Critical Lonza AG
Publication of EP0453801A2 publication Critical patent/EP0453801A2/fr
Publication of EP0453801A3 publication Critical patent/EP0453801A3/de
Application granted granted Critical
Publication of EP0453801B1 publication Critical patent/EP0453801B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/522—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings
    • B05B15/5223—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening
    • B05B15/5225—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening the cleaning element being located upstream of the discharge opening or being actuated upstream therefrom

Definitions

  • a spray device in which in a spray head between the inlet of a disperse system and a perforated nozzle, a screen insert and a Wiping device are provided. This is to ensure that coarse-grained constituents of the disperse system, which can clog the nozzle, are retained and forcibly stripped off.
  • an apparatus which comprises a spray head which has a perforated nozzle, an inlet for disperse systems, a coupling for a connection to a feed element, and a plunger which can be pushed inside the spray head in front of the opening of the perforated nozzle , which has one or more channels which start from the coupling side of the plunger, pass through the plunger and open into the cavity of the spray head.
  • the plunger has an inlet channel for the disperse system axially on the coupling side, from which one or more outlet channels branch off towards the nozzle-side end.
  • a device is preferably used in which the outlet channel or channels are either branched at an angle to the inlet channel in such a way that the disperse system strikes the inner wall of the spray head, which is designed as a cavity, radially or tangentially, or is arranged offset to the inlet channel parallel to the axis such that the disperse system axially strikes the inner wall of the spray head designed as a cavity.
  • a device in which the stamp has one or more channels which, starting from the coupling side of the stamp and running parallel to the axis through the stamp, open into the cavity of the spray head at the side of the punch tip.
  • the inside of the perforated nozzle is adapted to the stamp tip and the stamp is designed to be movable in its longitudinal direction via a spring so that it is pushed back out of the spray head by the spray pressure during the spraying process and, as soon as the spray pressure drops to an undesirable level, is pushed permanently in front of the opening of the perforated nozzle.
  • a device is advantageously used in which the coupling is designed as a holder for the spraying device.
  • a device is preferably used in which the coupling has an axial passage for the disperse system and is connected either axially or radially to the housing of the spraying device.
  • the coupling is expediently designed as a screw or plug-in coupling, preferably as a plug-in coupling.
  • coarse-grained substances and resin-prone polymers in particular graphite-containing dispersions, which contain graphite with a grain size in the range from 25 to 150 »m, can be sprayed on rollers when hot-rolling sheet metal, profiles or other molded parts without reducing the throughput.
  • the plunger 1 has an inlet duct 3 for the disperse system on the coupling side, from which two outlet ducts 4 branch off towards the nozzle-side end, as shown in FIG. 1.
  • the number of output channels 4 can vary between one and ten, preferably between three and six.
  • the output channels 4 are preferably designed as bores with diameters between 0.5 mm and 3 mm.
  • the nozzle-side end of the stamp 1 has a conical tip.
  • the cone angle is 15 ° to 90 °.
  • the shape of the perforated nozzle 7 is adapted to the stamp 1 against the interior of the housing.
  • the opening of the perforated nozzle 7 can be flat jet or omnidirectional to have.
  • the diameter of the perforated nozzle 7 depends on the desired throughput and spray pattern and is 0.3 mm to 4 mm.
  • the coupling 9 is designed as a plug or screw coupling and has an axial passage channel 10 for the disperse system.
  • the coupling 9 can be axially connected to the spray device according to FIGS. 1 to 4 or radially to the spray device according to FIG. 5. If the coupling 9 according to the embodiment of FIG. 5 is connected radially to the spray device, then, as shown in FIG. 6, the disperse system can pass directly into the cavity 2 of the spray head 5 without passing through channels in the stamp.
  • the coupling 9 can form the holder of the spray device, which enables a low installation height and in particular favors the installation of the nozzle devices in roll stands, which offer only very little space for additional installations.
  • the spraying device is fed via the feed element 13, which is designed as a feed pipe or as a distributor, via known pump devices with the disperse system.
  • the pressures used are in the range from 5 to 100 bar, mostly between 20 and 80 bar.

Landscapes

  • Nozzles (AREA)
  • Coating Apparatus (AREA)
  • Manipulator (AREA)
  • Catching Or Destruction (AREA)

Claims (8)

  1. Utilisation d'un dispositif
    - comportant une tête de pulvérisation (5) pourvue d'un injecteur à trou (7),
    - une entrée pour des systèmes en dispersion,
    - un dispositif d'accouplement (9) servant à la liaison avec un organe d'alimentation (12, 13), et
    - un piston (1) mobile pouvant coulisser devant l'ouverture de l'injecteur à trou (7) à l'intérieur de la tête de pulvérisation (5), lequel piston (1) est pourvu d'un ou de plusieurs canaux (3, 4, 6) pour le système en dispersion, lesquels partent depuis le côté du dispositif d'accouplement du piston (1), traversent ce dernier (1) et débouchent dans l'espace creux (2) de la tête de pulvérisation (5),
    ce dispositif servant à asperger des cylindres lors du formage à chaud de tôles, de profilés creux et de profilés, avec des dispersions qraphitiques contenant du graphite dont les grains ont une grosseur comprise entre 25 et 150 »m.
  2. Utilisation d'un dispositif selon la revendication 1, dans lequel le piston (1) est pourvu, du côté de l'accouplement, d'un canal d'entrée (3) orienté axialement pour le système en dispersion, à partir duquel un ou plusieurs canaux de sortie (4) bifurquent vers le côté de l'injecteur.
  3. Utilisation d'un dispositif selon la revendication 2, dans lequel le canal de sortie (4) ou les canaux de sortie (4) sont agencés, soit suivant une déviation formant un angle par rapport au canal d'entrée (3), de manière à ce que le système en dispersion atteigne la paroi intérieure de la tête de pulvérisation (5), qui forme un espace creux (2), suivant une direction radiale jusqu'à tangentielle par rapport à celle-ci, soit de manière parallèle à l'axe et décalée par rapport au canal d'entrée (3), de manière à ce que le système en dispersion atteigne la paroi intérieure de la tête de pulvérisation (5), qui forme un espace creux (2), suivant une direction axiale.
  4. Utilisation d'un dispositif selon la revendication 1, dans lequel le piston (1) est pourvu d'un ou de plusieurs canaux (6) qui, partant depuis le côté du dispositif d'accouplement du piston (1), s'étendent parallèlement à l'axe par rapport auquel ils sont décalés et, traversant le piston (1), débouchent sur le côté du sommet du piston dans l'espace creux (2) de la tête de pulvérisation (5).
  5. Utilisation d'un dispositif selon l'une des revendications 1 à 4, dans lequel l'extrémité du piston (1) située du côté de l'injecteur a la forme d'un cône dont l'angle situé au sommet est compris entre 15° et 90° , dans lequel la face interne de l'injecteur à trou (7) est adaptée au sommet du piston et le piston (1) a, dans le sens longitudinal, une mobilité telle, par l'intermédiaire d'un ressort (8), qu'il est repoussé hors de la tête de pulvérisation (5) sous l'effet de la pression de pulvérisation pendant le processus de pulvérisation et, dès que la pression de pulvérisation retombe à un niveau non souhaitable, il est poussé en permanence devant l'ouverture de l'injecteur à trou (7).
  6. Utilisation d'un dispositif selon l'une des revendications 1 à 5, dans lequel le dispositif d'accouplement (9) constitue un support pour le dispositif de pulvérisation.
  7. Utilisation d'un dispositif selon la revendication 6, dans lequel le dispositif d'accouplement (9) est pourvu d'un canal d'admission (10) orienté axialement pour le système en dispersion et est relié, de manière soit axiale, soit radiale, à un boîtier (11) du dispositif de pulvérisation.
  8. Utilisation d'un dispositif selon l'une des revendications 6 ou 7, dans lequel le dispositif d'accouplement (9) a la forme d'un accouplement à visser ou à emboîter.
EP91104899A 1990-04-27 1991-03-27 Dispositif pour pulvériser une dispersion Expired - Lifetime EP0453801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH144190 1990-04-27
CH1441/90 1990-04-27

Publications (3)

Publication Number Publication Date
EP0453801A2 EP0453801A2 (fr) 1991-10-30
EP0453801A3 EP0453801A3 (en) 1991-12-11
EP0453801B1 true EP0453801B1 (fr) 1995-02-01

Family

ID=4210534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104899A Expired - Lifetime EP0453801B1 (fr) 1990-04-27 1991-03-27 Dispositif pour pulvériser une dispersion

Country Status (7)

Country Link
US (2) US5129580A (fr)
EP (1) EP0453801B1 (fr)
JP (1) JPH0550119A (fr)
AT (1) ATE117917T1 (fr)
CA (1) CA2041208A1 (fr)
DE (1) DE59104453D1 (fr)
ES (1) ES2067074T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2870986B2 (ja) * 1990-05-23 1999-03-17 品川白煉瓦株式会社 浸漬ノズル交換装置
DE9208796U1 (de) * 1992-07-01 1992-10-08 Suttner GmbH & Co KG, 4800 Bielefeld Strahldüse für Hochdruckreinigungsgeräte
GB9409571D0 (en) * 1994-05-13 1994-07-06 Chicken Robert R Self cleaning screen washer
FR2733705B1 (fr) * 1995-05-05 1997-06-13 Vesuvius France Sa Dispositif et procede de changement d'un tube de coulee continue de repartiteur d'acierie
US5942147A (en) * 1996-02-06 1999-08-24 Shinagawa Refractories Co., Ltd. Submerged nozzle replacing device
US5911363A (en) * 1997-03-10 1999-06-15 Spratronics, Inc. Vehicle mounted spray apparatus and method
DE19818028C2 (de) * 1997-04-22 2001-11-29 Toshiba Ceramics Co Integrierter Tauchausguß und Verfahren zu seiner Herstellung
DE19957055A1 (de) 1999-11-27 2001-05-31 Mika Heiztechnik Gmbh Einrichtung zum Zuführen von vorzugsweise flüssigen oder gasförmigen Brennstoffen in einen Brennraum
US6996956B2 (en) * 2001-01-12 2006-02-14 Sealed Air Corporation (Us) Fluid dispenser having improved cleaning solvent delivery system
US6811059B2 (en) * 2003-02-24 2004-11-02 Sealed Air Corporation (Us) Self-cleaning fluid dispenser
CN103639081B (zh) * 2013-10-28 2017-01-25 重庆新陆农业开发有限公司 一种可变流量喷头

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US876453A (en) * 1906-02-07 1908-01-14 William Henry Heard Spray-nozzle.
US1007325A (en) * 1911-05-16 1911-10-31 Carl Boehme Oil-burner tip.
GB191209563A (en) * 1912-04-23 1912-12-19 Henry Gardiner Atkinson Improvements in and relating to Spraying Devices.
FR569852A (fr) * 1921-02-22 1924-04-18 Tête de pulvérisateur
US1630974A (en) * 1925-07-23 1927-05-31 Shelor Olie Warren Spray nozzle
US1716195A (en) * 1927-04-28 1929-06-04 American Stove Co Vaporizer and method of making the same
US2017467A (en) * 1934-11-23 1935-10-15 Leavitt R Loomis Spray nozzle
US2135925A (en) * 1936-11-13 1938-11-08 Tuscher Jean Edouard Fuel injecting device for internal combustion engines
US2794683A (en) * 1954-06-15 1957-06-04 Ind Molasses Corp Spraying nozzle
US3203629A (en) * 1963-03-29 1965-08-31 Beloit Corp Shower nozzle
US3295169A (en) * 1963-12-23 1967-01-03 Ernest P Moslo Spring-pressed shutoff for injection nozzle
DE2318458B2 (de) * 1973-04-12 1980-09-04 Lechler Gmbh & Co Kg, 7012 Fellbach Einrichtung zur dichtenden Befestigung von Düsen an Leitungsteilen
GB1438215A (en) * 1974-05-08 1976-06-03 Lonz Ltd High temperature lubricant
JPS51125160A (en) * 1974-06-27 1976-11-01 Saito Kouki Kk Automatically opening or closing valve gate for plastic injection molding
CH598888A5 (fr) * 1976-03-09 1978-05-12 Concast Ag
DE2724931A1 (de) * 1976-06-21 1977-12-29 Lonza Ag Vorrichtung zum verspruehen von dispersen systemen
FR2409809A1 (fr) * 1977-11-29 1979-06-22 Daussan Henri Jean Dispositif de manoeuvre pour tube ou busette de coulee
US4381102A (en) * 1979-10-29 1983-04-26 Flo-Con Systems, Inc. Shroud support and method for shroud engagement with teeming valve
GB8705482D0 (en) * 1987-03-09 1987-04-15 Ici Plc Dispensing apparatus

Also Published As

Publication number Publication date
DE59104453D1 (de) 1995-03-16
CA2041208A1 (fr) 1991-10-28
ES2067074T3 (es) 1995-03-16
US5114123A (en) 1992-05-19
EP0453801A3 (en) 1991-12-11
ATE117917T1 (de) 1995-02-15
JPH0550119A (ja) 1993-03-02
EP0453801A2 (fr) 1991-10-30
US5129580A (en) 1992-07-14

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