EP0037747A1 - Sprühdüse, insbesondere für Dünger - Google Patents

Sprühdüse, insbesondere für Dünger Download PDF

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Publication number
EP0037747A1
EP0037747A1 EP81400264A EP81400264A EP0037747A1 EP 0037747 A1 EP0037747 A1 EP 0037747A1 EP 81400264 A EP81400264 A EP 81400264A EP 81400264 A EP81400264 A EP 81400264A EP 0037747 A1 EP0037747 A1 EP 0037747A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
liquid
diameter
spray nozzle
chamber
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
EP81400264A
Other languages
English (en)
French (fr)
Other versions
EP0037747B1 (de
Inventor
Christian Naturel
Etienne Minot
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.)
Saint Gobain Ceramiques Avancees Desmarquest SAS
Original Assignee
Lafarge Refractaires SA
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 Lafarge Refractaires SA filed Critical Lafarge Refractaires SA
Priority to AT81400264T priority Critical patent/ATE13390T1/de
Publication of EP0037747A1 publication Critical patent/EP0037747A1/de
Application granted granted Critical
Publication of EP0037747B1 publication Critical patent/EP0037747B1/de
Expired 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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

Definitions

  • the present invention relates to a spray nozzle especially for fertilizers for spraying liquid fertilizers in the form of large drops.
  • a spreading device is generally used, fixed on a tractor and comprising, among other things, a more or less long deflection tube into which the liquid fertilizer is brought.
  • This tube is provided with several barrels or other similar devices, distributed regularly over the entire length of the deflection tube, on which are fixed several liquid fertilizer spraying devices.
  • these spraying devices consist of rods or booms, generally of metal, pierced with several holes and the size of which varies from one rod to another.
  • liquid fertilizers for a given liquid fertilizer inlet pressure.
  • rods have a certain number of drawbacks and in particular of being fragile, bulky, mobile and often costly, because the fact that these rods are made of metal, they are easily chemically attackable by fertilizers, that is to say that is, they wear out quickly, which necessitates a fairly frequent replacement of these rods.
  • the present invention therefore relates to a fertilizer spray nozzle which makes it possible to remedy these drawbacks and, in particular, having greater resistance to chemical attack by fertilizers, a much smaller size and a price. lower.
  • the body of the nozzle is made of rigid plastic and the pellet is made of alumina.
  • the body of the nozzle has on its outlet surface of the fluid, a conical shape so that the axes of the holes are perpendicular to said face.
  • the spray nozzle can be easily disassembled and easily cleaned, which is, for the farmer, a big advantage due to the presence of large and frequent deposits when spraying fertilizer liquids.
  • the spraying devices 7 consist of rods 7a, generally metallic, pierced with several holes such as 9a, for example, three in number, the size of which varies from rod to rod, for rods 9a fixed on the same barrel 5.
  • These rods 9a can be, for example, arranged at 90 ° from one another, for the same barrel 5.
  • the spraying devices 7 are constituted by spray nozzles 7b pierced with small holes 9b.
  • the barrels 5 on which the spraying devices 7 are mounted make it possible to select the desired spraying devices, therefore the size of the holes 9 thus making it possible to define the spraying rate of the liquid fertilizers that is desired.
  • the spraying devices according to the invention that is to say the nozzles 7b, are considerably less bulky than the spraying devices 7a of the art anterior, which allows for a deflection tube 3 of given length to fix a greater number of spraying devices.
  • the liquid jets referenced Fb exit with a certain axis of inclination relative to the axis. of the nozzle 7b, which makes it possible to spread liquid fertilizers over a larger surface and in a uniform manner, while in the prior art, the liquid jets referenced Fa arrive, perpendicular to the ground.
  • FIG. 2 shows a section along line II-II of Figure 1B.
  • This diagram makes it easier to see the arrangement of the nozzles 7b on the barrel 5, connected to the deflection tube 3 by means of a support 11.
  • the nozzle 7b is fixed on the barrel 5 for example, using a nut such as 13 screwed onto a threaded outlet such as 15 secured to the barrel 5. Between the threaded outlet 15 and the spray nozzle 7b, can be placed a seal such as 17.
  • This nozzle 7b comprises on each side a flat 19 allowing the orientation of liquid fertilizer jets.
  • This nozzle shown in more detail in Figures 3 and 4 is provided with holes such as 9b identical, arranged at equal distance from each other and allowing the exit of the liquid. When these holes are three in number, the angle between two neighboring holes 9b is 120 °. Of course, this is just a example, because the spray nozzles can comprise 2, 3, 4, 5 outlet holes 9b, distributed over a ring, which ensures identical flow for each of the holes 9b whatever the inlet pressure of the liquid fertilizers.
  • the axes of these holes 9b are inclined relative to the axis of the nozzle 7b at an angle preferably equal to 25 °.
  • the nozzle 7b consists of a body 21, provided with a cylindrical chamber 23, of given diameter, allowing the passage of liquid fertilizers in the nozzle.
  • This body 21 preferably made of rigid plastic material, has on its face 25 for outlet of the fluid, a conical shape so that the axes of the holes 9b are perpendicular to said face 25.
  • This nozzle 7b further comprises a calibrated pellet 27, preferably made of alumina having a purity of 99.5%, located at the inlet of the liquid in the nozzle 7a and defining a passage 29 to allow the liquid to flow whose diameter is less than the diameter of the chamber 23.
  • This pellet 27 has a concave face 31 making it possible to limit the flow rate of the liquid entering the nozzle 7a and to channel it. Indeed, the liquid arriving on this concave face 31, meets a restriction 33 at right angles to the passage 29 creating a significant pressure drop. This allows, as well as the existence of a passage 29 of diameter smaller than the diameter of the chamber 23, to reduce the flow of liquid leaving the nozzle.
  • this restriction 33 of passage 29 has a diameter whose order of magnitude is located between 0.7 mm and 1.8 mm and less than the diameter of the holes 9b, whose order of magnitude is located between 1.4 mm and 2.5 mm.
  • a restriction 33, and smaller holes 9b would lead to blockage of the nozzle, while a restriction 33 and larger holes 9b would lead to an excessive fertilizer spreading rate.
  • This pad 27 can be placed on top of the body of the nozzle 21 and its section is then equal to the section of the end 35 of the body of the nozzle 21. Under these conditions, the pad 27 is represented by the reference 27a.
  • the means for fixing the pad 27a consist of a coupling ring 37 preferably made of flexible plastic, trapping the pad 27a. and coming to bear on the end 35 of the body of the nozzle 21, constituting a step.
  • This coupling ring is, of course, provided with an opening 39 so as to allow the introduction of liquid fertilizers into the nozzle.
  • the calibrated pellet referenced 27b can be placed in the chamber 23 of the body of the nozzle 21.
  • This chamber 23 comprising on its walls a recess 41 creating a reduction in the diameter of the chamber 23, allows attachment to force of the patch 27b, the diameter of which is greater than the diameter of the chamber 23 defined after the recess 41.
  • this recess 41 exists, which allows the farmer to adapt the spray nozzle 7a on the barrel 5 (FIG. 2) according to the diameter of the threaded outlet 15.
  • This nozzle depending on the dimension of the restriction 33 of the passage 29 and of the holes 9a, can deliver the liquid fertilizers in the form of droplets of 0.5 to 2 mm in diameter for an inlet pressure of the liquid fertilizers ranging from 0.5 to 10 bars, because the spray rate of liquid fertilizers depends not only on the size of the restriction 33 and the holes 9a, but also on the pressure under which the liquids arrive in the nozzle.

Landscapes

  • Nozzles (AREA)
  • Fertilizing (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Catching Or Destruction (AREA)
  • Fertilizers (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP81400264A 1980-02-28 1981-02-20 Sprühdüse, insbesondere für Dünger Expired EP0037747B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400264T ATE13390T1 (de) 1980-02-28 1981-02-20 Spruehduese, insbesondere fuer duenger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8004438 1980-02-28
FR8004438A FR2477039A1 (fr) 1980-02-28 1980-02-28 Buse de pulverisation notamment pour engrais

Publications (2)

Publication Number Publication Date
EP0037747A1 true EP0037747A1 (de) 1981-10-14
EP0037747B1 EP0037747B1 (de) 1985-05-22

Family

ID=9239105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400264A Expired EP0037747B1 (de) 1980-02-28 1981-02-20 Sprühdüse, insbesondere für Dünger

Country Status (13)

Country Link
US (1) US4372494A (de)
EP (1) EP0037747B1 (de)
AT (1) ATE13390T1 (de)
AU (1) AU537320B2 (de)
BR (1) BR8101144A (de)
CA (1) CA1167885A (de)
DE (1) DE3170575D1 (de)
DK (1) DK150094C (de)
ES (1) ES264755Y (de)
FR (1) FR2477039A1 (de)
IE (1) IE50818B1 (de)
NO (1) NO156887C (de)
ZA (1) ZA811220B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568445A1 (fr) * 1984-08-03 1986-02-07 Desmarquest Ceramiques Tech Buse de pulverisation notamment pour engrais.
DE3834670A1 (de) * 1987-10-14 1989-04-27 Spraying Systems Deutschland G Duese zum austragen von fluessigem duenger
DE3914551C1 (de) * 1989-05-03 1990-11-15 Lechler Gmbh & Co Kg, 7012 Fellbach, De

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003646A (en) * 1987-04-14 1991-04-02 Hydro Air Industries, Inc. Hydrotherapy apparatus
US4998359A (en) * 1989-10-02 1991-03-12 The Rhymer Company Automatic wax lubricator for flatwork ironer
DE4230056A1 (de) * 1992-09-08 1994-03-10 Man Nutzfahrzeuge Ag Zerstäubereinrichtung
AU2002356080B2 (en) * 2001-08-13 2007-08-09 Sa Exel Industries A nozzle
US11305142B2 (en) * 2018-01-12 2022-04-19 Carrier Corporation End cap agent nozzle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495346A (en) * 1946-04-06 1950-01-24 Charles H Ramsdell Sprinkler head
FR1140623A (fr) * 1956-01-27 1957-07-31 Perfectionnements aux arroseurs sous pression d'eau, genre pommes d'arrosage
US3191871A (en) * 1962-05-16 1965-06-29 Golden Arrow Mfg Ltd Crop sprayers
FR2184247A5 (de) * 1972-05-08 1973-12-21 Berthoud Sa
FR2280852A1 (fr) * 1974-08-01 1976-02-27 Lechler Apparatebau Kg Dispositif de fixation d'une buse sur un tuyau d'une conduite d'eau, notamment
US4128206A (en) * 1977-05-31 1978-12-05 Delavan Corporation Low drift flat spray nozzle and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US659843A (en) * 1900-04-26 1900-10-16 George Bray Construction of gas-burners.
US2256729A (en) * 1937-10-18 1941-09-23 Thompson Mfg Company Multiple jet sprinkler
US2650132A (en) * 1950-11-03 1953-08-25 Helen A Reinecke Sprinkler type irrigating device
US2933259A (en) * 1958-03-03 1960-04-19 Jean F Raskin Nozzle head
US3130919A (en) * 1963-02-14 1964-04-28 Baker Res And Dev Corp Adjustable plastic spray device
GB1376591A (en) * 1972-06-26 1974-12-04 Franz N C Nozzle assemblies for use at extremely high fluid pressures
FR2448389A1 (fr) * 1979-02-09 1980-09-05 Berthoud Sa Perfectionnements aux dispositifs d'epandage de liquide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495346A (en) * 1946-04-06 1950-01-24 Charles H Ramsdell Sprinkler head
FR1140623A (fr) * 1956-01-27 1957-07-31 Perfectionnements aux arroseurs sous pression d'eau, genre pommes d'arrosage
US3191871A (en) * 1962-05-16 1965-06-29 Golden Arrow Mfg Ltd Crop sprayers
FR2184247A5 (de) * 1972-05-08 1973-12-21 Berthoud Sa
FR2280852A1 (fr) * 1974-08-01 1976-02-27 Lechler Apparatebau Kg Dispositif de fixation d'une buse sur un tuyau d'une conduite d'eau, notamment
US4128206A (en) * 1977-05-31 1978-12-05 Delavan Corporation Low drift flat spray nozzle and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568445A1 (fr) * 1984-08-03 1986-02-07 Desmarquest Ceramiques Tech Buse de pulverisation notamment pour engrais.
DE3834670A1 (de) * 1987-10-14 1989-04-27 Spraying Systems Deutschland G Duese zum austragen von fluessigem duenger
DE3914551C1 (de) * 1989-05-03 1990-11-15 Lechler Gmbh & Co Kg, 7012 Fellbach, De

Also Published As

Publication number Publication date
US4372494A (en) 1983-02-08
DK150094B (da) 1986-12-08
AU6757381A (en) 1981-09-03
BR8101144A (pt) 1981-09-01
ES264755U (es) 1982-12-01
NO156887C (no) 1987-12-16
ATE13390T1 (de) 1985-06-15
IE50818B1 (en) 1986-07-23
NO156887B (no) 1987-09-07
FR2477039B1 (de) 1984-12-07
IE810383L (en) 1981-08-28
ZA811220B (en) 1982-03-31
AU537320B2 (en) 1984-06-14
EP0037747B1 (de) 1985-05-22
ES264755Y (es) 1983-06-01
DE3170575D1 (en) 1985-06-27
CA1167885A (en) 1984-05-22
DK150094C (da) 1987-06-15
DK86281A (da) 1981-08-29
FR2477039A1 (fr) 1981-09-04
NO810611L (no) 1981-08-31

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