EP0453801A2 - Dispositif pour pulvériser une dispersion - Google Patents

Dispositif pour pulvériser une dispersion Download PDF

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Publication number
EP0453801A2
EP0453801A2 EP91104899A EP91104899A EP0453801A2 EP 0453801 A2 EP0453801 A2 EP 0453801A2 EP 91104899 A EP91104899 A EP 91104899A EP 91104899 A EP91104899 A EP 91104899A EP 0453801 A2 EP0453801 A2 EP 0453801A2
Authority
EP
European Patent Office
Prior art keywords
coupling
stamp
spray head
spraying
designed
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
EP91104899A
Other languages
German (de)
English (en)
Other versions
EP0453801B1 (fr
EP0453801A3 (en
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

  • the invention relates to a device for spraying disperse systems with a spray head which has a perforated nozzle, with an inlet for disperse systems, with a plunger which can be pushed inside the spray head in front of the opening of the perforated nozzle and with a coupling for a connection to a feed element.
  • a cleaning member is slidably mounted in a tubular spray head, which has through-channels for the liquid to be sprayed, which is also connected to a tip which, when the cleaning member moves relative to the spray head, into an opening in the perforated nozzle can be moved to clean this opening (FR-PS 569 852).
  • the cleaning should be done without interrupting the normal functions of the spray head.
  • a spray valve for spraying viscous liquids which is designed as a needle valve (US Pat. No. 2,794,683).
  • a perforated disk is arranged concentrically with its opening in front of the perforated nozzle.
  • a plunger that can be displaced inside the spray head has a cylindrical or conical section at its head end, which is inserted through the perforated disk into the opening of the perforated nozzle can to push dirt out of this opening of the perforated nozzle.
  • a spray device is known in which a sieve insert and a stripping device are provided in the spray head between the inlet of the disperse system and the perforated nozzle. This is to ensure that coarse-grained constituents of the disperse system which can clog the nozzle are retained and forcibly stripped off.
  • the relatively coarse-grained graphites on the one hand and the polymers which tend to resinify in the nozzle opening on the other hand continuously reduce the throughput in the known spray devices and lead to their blockage.
  • the invention has for its object a more simply constructed, easy to clean and quickly replaceable To create a device by means of which disperse systems containing coarse-grained substances or polymers that tend to resinify can be sprayed over a long period of time without reducing the throughput.
  • the stamp has one or more channels for the disperse system, which emanate from the coupling side of the stamp, pass through the stamp and into the cavity of the spray head flow out.
  • the plunger has an inlet channel for the disperse system axially on the coupling side, from which one or more outlet channels branch off toward the nozzle-side end.
  • the output channel or the output channels are either branched at an angle to the inlet channel so that the disperse system strikes the inner wall of the spray head designed as a cavity radially or tangentially, or are offset parallel to the axis to the inlet channel so that the disperse system is axial meets the inner wall of the spray head, which is designed as a cavity.
  • the plunger has one or more channels which, starting from the coupling side of the plunger and running parallel to the axis through the plunger, open to the side of the plunger tip into the cavity of the spray head.
  • the end of the stamp on the nozzle side has a conical shape with a cone angle of 15 ° to 90 °, that the inside of the perforated nozzle is adapted to the punch tip and that the punch is designed so that it can move in the 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 the opening of the perforated nozzle is pushed.
  • the coupling is advantageously designed as a holder for the spraying device.
  • the coupling preferably has an axial passage for the disperse system and is connected either axially or radially to the housing of the spray device.
  • the coupling is expediently designed as a screw or plug-in coupling, preferably as a plug-in coupling.
  • the plunger is pressed briefly from the cavity into the spray head at the perforated nozzle, which means that the perforated nozzle is pressed out of any clogged particles. After the punch has been withdrawn, the perforated nozzle is fully effective again.
  • perforated nozzles with nozzle openings of 0.5 to 1.0 mm are preferably used.
  • the spraying device can also be used for other known disperse systems which, for example, tend to resinify when in contact with air or which, up to now, have been difficult or impossible to spray with known devices due to the particle size of the disperse.
  • the stamp can be controlled in such a way that it is pressed into the perforated nozzle after the supply on the disperse system has been switched off, and at the same time cleans and securely closes it. When the disperse system is fed again, the stamp can be pulled back into the spray head.
  • a plunger 1 which can be moved in the longitudinal direction via a spring 8.
  • the plunger 1 has an inlet channel 3 for the disperse system on the coupling side, from which two outlet channels 4 branch off towards the end on the nozzle side, 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 output channels 4 can be arranged according to FIG. 2 at a right angle with respect to the axis of the spraying device or according to FIG. 1 at any angle to the axis or according to FIG. 4 offset parallel to the axis.
  • one or more, expediently one to ten, preferably three to six, channels 6 are provided in the plunger 1 parallel to the axis, starting from the coupling side of the plunger 1 and starting from the side of the plunger tip into the cavity 2 of the spray head 5 mouth.
  • These channels 6 are also designed as bores whose diameters vary 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 plunger 1 is designed to be movable in the longitudinal direction via the spring 8 in such a way that it is pressed back from the spray head 5 by the spray pressure during the spraying process. As soon as the spray pressure drops to an undesirable level, the plunger 1 is pushed permanently in front of the opening of the perforated nozzle 7.
  • 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 radially connected 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 spraying device, which enables a low installation height and in particular favors the installation of the nozzle devices in rolling stands, which offer very little space for additional installations.
  • the coupling 9 is designed as a plug-in coupling, it can be inserted with a handle with a radial movement into a counter housing 12 of a feed element 13 and locked radially.
  • the spray 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, usually between 20 and 80 bar.

Landscapes

  • Nozzles (AREA)
  • Manipulator (AREA)
  • Coating Apparatus (AREA)
  • Catching Or Destruction (AREA)
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 true EP0453801A2 (fr) 1991-10-30
EP0453801A3 EP0453801A3 (en) 1991-12-11
EP0453801B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9208796U1 (de) * 1992-07-01 1992-10-08 Suttner GmbH & Co KG, 4800 Bielefeld Strahldüse für Hochdruckreinigungsgeräte
DE19957055A1 (de) * 1999-11-27 2001-05-31 Mika Heiztechnik Gmbh Einrichtung zum Zuführen von vorzugsweise flüssigen oder gasförmigen Brennstoffen in einen Brennraum

Families Citing this family (9)

* 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
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
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9208796U1 (de) * 1992-07-01 1992-10-08 Suttner GmbH & Co KG, 4800 Bielefeld Strahldüse für Hochdruckreinigungsgeräte
DE19957055A1 (de) * 1999-11-27 2001-05-31 Mika Heiztechnik Gmbh Einrichtung zum Zuführen von vorzugsweise flüssigen oder gasförmigen Brennstoffen in einen Brennraum
US6637674B1 (en) 1999-11-27 2003-10-28 Mika Heiztechnik Gmbh Device for supplying preferably liquid or gaseous fuels to a combustion chamber

Also Published As

Publication number Publication date
JPH0550119A (ja) 1993-03-02
ATE117917T1 (de) 1995-02-15
ES2067074T3 (es) 1995-03-16
US5129580A (en) 1992-07-14
EP0453801B1 (fr) 1995-02-01
US5114123A (en) 1992-05-19
DE59104453D1 (de) 1995-03-16
CA2041208A1 (fr) 1991-10-28
EP0453801A3 (en) 1991-12-11

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