EP3706569A1 - Dispositif de pulvérisation agricole - Google Patents

Dispositif de pulvérisation agricole

Info

Publication number
EP3706569A1
EP3706569A1 EP18803553.9A EP18803553A EP3706569A1 EP 3706569 A1 EP3706569 A1 EP 3706569A1 EP 18803553 A EP18803553 A EP 18803553A EP 3706569 A1 EP3706569 A1 EP 3706569A1
Authority
EP
European Patent Office
Prior art keywords
spray
liquid
active agent
static mixing
mixing unit
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Withdrawn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
EP18803553.9A
Other languages
German (de)
English (en)
Inventor
Oliver Meil
Olaf Ohlhafer
Steffen SIES
Hans-Arndt Freudigmann
Jochen Glasbrenner
Helmut Schomburg
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3706569A1 publication Critical patent/EP3706569A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0089—Regulating or controlling systems

Definitions

  • the invention relates to a spray device for dispensing sprays, in particular for agricultural purposes, with at least one static mixing unit for mixing at least one of the static mixing unit supplied active agent fed to one of the static mixing unit
  • Liquid in particular a carrier liquid, at least one
  • the invention further relates to a method for applying sprays, in particular for agricultural purposes, with the following steps:
  • Spray nozzles to which the at least one spray agent from the at least one static mixing unit can be supplied by means of a spray line can be supplied by means of a spray line.
  • mixing tubes are a relatively inexpensive way to mix in spraying systems of sprayers
  • Carrier liquid with an active agent or preparation to realize Due to the continuous characteristic of static mixing systems, the
  • Active agent amounts depending on the active agent, the Agent concentration and / or the surfaces or plants to be treated significantly different, namely from a few milliliters of active ingredient per ha up to one liter or even several liters of active ingredient per ha. Very large
  • DE 10 2006 059 193 A1 and DE 10 2009 026 234 A1 each disclose an injection device for dispensing liquids which has a static mixing chamber for mixing a carrier liquid with an active agent.
  • the active agent is metered by means of a metering pump of the carrier liquid, so that the spray can be conveyed after mixing directly from the static mixing chamber to a spray bar assembly.
  • the present invention is a spray device according to the aforementioned type, wherein a buffer tank is provided for the at least one spray means, wherein the buffer tank is arranged in the spray medium line downstream of the static mixing unit.
  • the present invention furthermore relates to a method according to the aforementioned type, with the additional steps:
  • a buffer tank in particular a non-pressurized buffer tank with the at least one spray from the static mixing unit after the mixing step, wherein the buffer tank is arranged in the spray line downstream of the static mixing unit;
  • An agricultural purpose in the context of the present invention may be understood as a purpose which is directed to the economical cultivation of crops.
  • the spray device may be part of an agricultural
  • the spraying device can be arranged and / or arranged on or on a mobile unit.
  • the mobile unit may be used as a land vehicle and / or
  • Aircraft and / or trailer may be formed.
  • the mobile unit may in particular be an agricultural work machine, for example a
  • Tractor a tractor or a (self-propelled or autonomous)
  • the spray device can also be connected to a hydraulic
  • the spraying device is constructed on a loading surface of the agricultural machine.
  • the spray device may be attached to the agricultural machine. The spreading of the spray liquid is preferably carried out in a field.
  • a field may be understood to mean an agricultural area or an area used for agriculture, a cultivated area for plants or even a plot of such area or cultivated area.
  • the field can thus be arable land, a grassland or a pasture.
  • the plants can, for example, crops whose fruit is used for agriculture
  • spray liquid encompasses both the entire spray liquid and only a portion or proportion, in particular a spatially limited portion or proportion of the spray liquid in the spray device be part of spray liquid in the spray liquid tank.
  • the spray liquid has at least one active agent.
  • the spray liquid may also have two or more active agents.
  • the active agent may be a spraying agent, i. have a preparation or pesticide, in particular a pesticide concentrate. Accordingly, the active agent may, for example, comprise a herbicide, fungicide or an insecticide (pesticide).
  • Spray liquid can be a spray mixture.
  • the active agent can also be Have fertilizer, in particular a fertilizer concentrate.
  • the active agent may accordingly have a liquid fertilizer and / or a growth regulator.
  • the active agent can be used as a liquid or as a solid, for example in the form of granules or as a pre-dissolved solid, for example in the form of
  • the spray liquid preferably further comprises a liquid, in particular a carrier liquid for diluting the active agent.
  • Carrier liquid can be understood in the context of the present invention, a liquid which is adapted to be mixed with the active agent to a dispensing or dispensing of the active agent, eg.
  • a present as a solid or granules active agent is suspended in the carrier liquid. It is also conceivable that a non-soluble in the carrier liquid active agent is emulsified in the carrier liquid.
  • the carrier liquid is preferably water.
  • the spray liquid can thus be formed as: liquid, suspension, emulsion, solution or a combination thereof.
  • the spray liquid is preferably formed as a water-diluted plant protection or water-diluted fertilizer.
  • the spraying agent mixed by means of the static mixing unit and the spraying agent to be dispensed or discharged at the spraying nozzles do not necessarily have to be identical in this case. That is, in other words, that the spray can be changed after mixing and before discharge, for example in its concentration.
  • the spray can be further diluted by means of a further mixing unit and / or mixed with another active agent to be applied subsequently by the spray nozzles.
  • a static mixing unit can be understood a static mixer, for example.
  • the static mixing unit is designed to ensure the most homogeneous possible mixing of liquid and active agent.
  • the static mixing unit can be designed to effect a defined mixing of liquid and active agent.
  • the static mixing unit can at least each have an inlet for the liquid and the active agent or a common inlet in the form of a tee.
  • the mixing unit may have at least one outlet, for example in a lower area for the mixed spray.
  • a portion of the corresponding conduit or conduit may also be under a conduit or a spray conduit
  • the line can be called fluidic
  • Connecting line for example, be designed in the form of a pipe, tube, channel or a tube.
  • the active agent and the liquid can be separated, i. be fed directly to the static mixing unit by means of separate lines. However, the active agent can also be initially supplied to the liquid or fed into this and then fed together with the liquid of the static mixing unit.
  • a liquid conveying unit which is designed to supply the liquid from a liquid tank via a liquid line of the static mixing unit and / or optionally another static mixing unit targeted or defined, i. to lead or to promote this.
  • an active agent delivery unit can be provided, which is designed to supply the active agent from an active agent tank via an active agent line of the static mixing unit in a targeted or defined or metered manner, i. to lead or to promote this. Possibly. a further active agent delivery unit may be provided, which is designed, another active agent from another
  • Active agent tank via a further active agent line to another static mixing unit targeted or defined or metered supply, i. to lead or to promote this.
  • the delivery units can each have corresponding (fluidic) lines to the tanks and the corresponding static
  • the conveyor units can have one or more
  • the metering units or metering components may comprise one or more pumps or metering pumps and valves.
  • the buffer tank may be formed as a buffer memory or a simple container. The buffer tank is in the spray line downstream of the static
  • the buffer tank is arranged downstream of the static mixing unit in the flow direction of the spray medium from the static mixing unit to the spray nozzles.
  • Buffer tank can thus be arranged spatially in the spray medium line between the static mixing unit and the spray nozzles.
  • the buffer tank is accordingly arranged and designed such that the spray agent can be guided or filled from the at least one static mixing unit into the buffer tank and can be guided, conveyed or conducted from the buffer tank to the spray nozzles.
  • Massively reduce dosing accuracy can be very simple and inexpensive
  • the buffer tank is depressurized. It is particularly advantageous if the buffer tank is depressurized by means of a vent hole.
  • the vent hole may advantageously have a vent valve.
  • the buffer tank is fluidically connected to the environment or connectable at a defined internal pressure, so that it is formed without pressure.
  • the liquid delivery unit can be a simple
  • Liquid delivery unit have a metering pump with a fixed delivery ratio (without measuring the delivery volume). It is also conceivable that the
  • Fluid delivery unit a simple valve or proportional valve in
  • the liquid delivery unit has a constant pressure source and a metering orifice.
  • Active substance delivery unit can be a simple alternative to the metering pump
  • Feed pump in conjunction with a flow meter (control) have.
  • the active substance delivery unit can additionally have at least one metering orifice in this case.
  • the buffer can be designed very easily and essentially without static requirements, whereby the total cost can be further reduced.
  • At least one further static mixing unit is provided for mixing at least one further active agent with the liquid and / or the spraying agent to form a further spraying means, which consists of the further static mixing unit by means of the buffer tank and the
  • Spray medium line can be fed to the spray nozzles.
  • the further static mixing unit is arranged parallel or serially to the static mixing unit.
  • Spraycan variety can be provided with multiple active agents.
  • a spray agent delivery unit is provided, which is arranged in the spray medium line downstream of the buffer tank and / or integrated in the buffer tank, and further formed, the spray from the buffer tank under pressure or under a defined pressure the Supply spray nozzles.
  • the buffer tank is designed as a pressure accumulator. That is to say, in other words, a further spray agent conveying unit separate from the liquid conveying unit and the active agent conveying unit is provided, which is arranged behind the buffer tank in the flow direction of the spray medium from the buffer tank to the spray nozzles.
  • the spray conveying unit can be designed to generate a constant pressure, ie be designed as a constant pressure system.
  • the spray conveying unit may in particular be designed to generate the injection pressure at the spray nozzles. Since the defined
  • Spray pressure is generated by the spray conveying unit, the
  • Conveyor units upstream of the buffer tank i. the liquid conveying unit and the active agent conveying unit, be very simple, since they only have the task of supplying the carrier liquid or the active agent in the
  • Buffer tank must take over. If the buffer tank is designed as an accumulator, for example with media separation (spraying means - air), the pressure regulation of the buffer tank can take place via a pneumatic pressure regulating valve, so that possible pressure fluctuations in the system can be reduced.
  • Liquid line is connected so that the active agent can be supplied together with the liquid of the static mixing unit, in particular that the active agent line is fluidly connected to the liquid line, that the active agent upstream of the liquid conveying unit of the liquid can be supplied, and / or the further active agent line fluidly with the
  • Liquid line is connected so that the further active agent can be supplied together with the liquid and / or the spray of the further static mixing unit, in particular that the further active agent line is fluidly connected to the liquid line, that the further active agent upstream of the liquid conveying unit of the liquid can be fed.
  • the drug delivery unit By feeding the agent before the liquid delivery unit, the drug delivery unit must dose against an even smaller pressure, whereby the requirements for the corresponding metering components of the drug delivery unit can be further reduced.
  • a level unit which formed, a level, in particular only a minimum level u to detect a maximum level of the spray in the buffer tank and to control the liquid delivery unit depending on the level, in particular the liquid delivery unit only when reaching the
  • the volume flow of the carrier liquid is controlled by a sensor
  • Active ingredient metering pump controlled accordingly.
  • the active ingredient is fed into the carrier liquid before the static mixing unit.
  • Check valves ensure that no carrier liquid can enter the drug tank and vice versa.
  • the hydraulic system is designed so that the
  • Buffer tank supply flow is greater than or equal to the maximum system requirements and thus permanently sufficient spray is always available in the buffer tank. If the level in the buffer tank reaches a maximum level, i. a maximum level, this is detected by another sensor and the liquid pump is turned off. The mixing / dosing system remains switched off until the minimum level is reached again.
  • filling of the buffer tank with the spraying agent can be carried out as a function of at least one piece of information which is selected from the group consisting of: processing status, in particular remaining area to be treated, costs of the spraying agent and degree of stress
  • Spraying agent is available in the buffer tank. It is also advantageous if a final mixing unit is provided, which is arranged on the spray nozzles and is further configured to mix the spray agent with the liquid and / or one of the active agent and / or one of the spraying means.
  • the spray device according to the invention is very suitable as
  • Fig. 1 is a schematic representation of a first embodiment
  • Spraying device with a static mixing unit a schematic representation of another embodiment of the spray device with two series-connected static mixing units; a schematic representation of another embodiment of the spray device with two static mixing units connected in parallel;
  • Fig. 1 is a schematic representation of a spraying device is shown, which is provided in its entirety by the reference numeral 10.
  • the spray device 10 has a liquid tank 12 with a liquid 14 and an active agent tank 16 with an active agent tank 18.
  • the liquid 14 is a carrier liquid 14 or water 14.
  • the spray device 10 also has a static mixing unit 20.
  • the static mixing unit 20 is fluidly connected to the liquid tank 12 via a liquid line 22.
  • In the liquid line 22 is a
  • Liquid delivery unit 24 is arranged to supply the liquid 22 of the static mixing unit 20 and to be able to lead into this.
  • Liquid delivery unit 24 in this case has a feed pump 26 and a flow meter 28.
  • the static mixing unit 20 is further connected via an active agent line 30 with the active agent tank 16.
  • an active agent conveying unit 32 is arranged in order to be able to supply the active agent 18 to the static mixing unit 20 or to be able to conduct it into this.
  • the active agent delivery unit 32 in this case has a metering pump 34. Accordingly, by means of the static mixing unit 20, a mixing of the active agent 18 with the carrier liquid 14 to a spray 36th
  • Spray medium line 38 a buffer tank 40 is arranged.
  • the buffer tank 40 is arranged and configured in such a way that the spray agent 36 from the static mixing unit 20 is filled therein, in order then to be conducted out of the buffer tank 40 to a nozzle system 42 or a spray boom 44 with spray nozzles 46.
  • the buffer tank 40 is formed without pressure.
  • the buffer tank 40 on a vent hole 48. This advantageously leads to the fact that when filling the buffer tanks 40, the liquid delivery unit 24 and the
  • Feed pump 26 and the active agent conveying unit 32 and the metering pump 34 only against the ambient pressure and thus not against the high
  • the spray device 10 also has a spray agent delivery unit 50, which is designed to supply the spray agent 36 from the buffer tank 40 under pressure or under a defined pressure to the nozzle system 42 or the spray nozzles 46 ,
  • the spray conveying unit 50 hereby has a
  • Constant pressure source with a pump 52 on.
  • the further static mixing unit 20 ' is in this case by means of another
  • a further active agent 18' is arranged in the further active agent tank 16 '.
  • the static mixing unit 20 and the further static mixing unit 20 ' are arranged in series, the further static mixing unit 20' being arranged downstream of the static mixing unit 20.
  • the static mixing unit 20 and the further static mixing unit 20 ' are arranged in series, the further static mixing unit 20' being arranged downstream of the static mixing unit 20.
  • the static mixing unit 20 and the further static mixing unit 20 ' are arranged in series, the further static mixing unit 20' being arranged downstream of the static mixing unit 20.
  • the static mixing unit 20 and the further static mixing unit 20 ' are arranged in series, the further static mixing unit 20' being arranged downstream of the static mixing unit 20.
  • the method 100 comprises a step 102 of mixing at least one active agent 18,
  • the method 100 further includes a step 104 of filling a
  • Buffer tank 40 in particular a pressureless buffer tank 40 with the at least one spray means 36, 36 'from the static mixing unit 20, 20' after the mixing step 102, wherein the buffer tank 40 in the
  • the method 100 further includes a step 106 of conveying the spray 36, 36 'from the buffer tank 40 to the spray nozzles 46 to perform a metered dispensing step 108.
  • 100 finally includes a step 108 of metered dispensing of at least one spray means 36, 36 'by means of spray nozzles 46, wherein the spray nozzles 46 are fluidly connected by means of a spray line 38 with the static mixing unit 20, 20'.
  • an exemplary embodiment comprises an "and / or" link between a first feature and a second feature, then this is to be read so that the embodiment according to one embodiment, both the first feature and the second feature and according to another embodiment either only first feature or only the second feature.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un dispositif de pulvérisation (10) servant à épandre des produits de pulvérisation (36), en particulier pour des applications agricoles, ce dispositif comprenant au moins une unité de mélange statique (20) servant à mélanger au moins un agent actif (18) amené avec un liquide (14) amené, en particulier un liquide porteur (14), pour former au moins un produit de pulvérisation (36) ; et des buses de pulvérisation (46) auxquelles le ou les produits de pulvérisation (36) peuvent être amenés depuis la ou les unités de mélange statiques (20) au moyen d'une conduite de produit de pulvérisation (38). Selon l'invention, un réservoir tampon (40) est prévu pour le ou les produits de pulvérisation (36), ce réservoir tampon (40) étant disposé dans la conduite de produit de pulvérisation (38) en aval de l'unité de mélange statique (20).
EP18803553.9A 2017-11-10 2018-10-25 Dispositif de pulvérisation agricole Withdrawn EP3706569A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017220016.2A DE102017220016A1 (de) 2017-11-10 2017-11-10 Landwirtschaftliche Spritzvorrichtung
PCT/EP2018/079297 WO2019091793A1 (fr) 2017-11-10 2018-10-25 Dispositif de pulvérisation agricole

Publications (1)

Publication Number Publication Date
EP3706569A1 true EP3706569A1 (fr) 2020-09-16

Family

ID=64316478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18803553.9A Withdrawn EP3706569A1 (fr) 2017-11-10 2018-10-25 Dispositif de pulvérisation agricole

Country Status (3)

Country Link
EP (1) EP3706569A1 (fr)
DE (1) DE102017220016A1 (fr)
WO (1) WO2019091793A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023180774A1 (fr) * 2022-03-25 2023-09-28 Micropply Limited Système et procédé de préparation de traitements de surface de sol pour machines de pulvérisation agricoles autonomes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321235A1 (fr) * 1975-08-19 1977-03-18 Bodin Andre Ets Unite d'addition dosee d'un produit liquide dans un reseau de distribution de liquide
DE102006059193A1 (de) 2006-12-15 2008-06-19 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Spritzeinrichtung
DE102009001532A1 (de) * 2009-03-13 2011-08-04 Schulte, Reinhold, 33106 Agrare Ausbringeinrichtung für das Ausbringen von Fluiden
AU2010201502A1 (en) * 2009-04-17 2010-11-04 Goldacres Holdings Pty. Ltd. Chemical transfer system
DE102009026234B4 (de) 2009-07-23 2023-07-06 Amazonen-Werke H. Dreyer SE & Co. KG Spritzeinrichtung
DE102011050207A1 (de) * 2011-05-09 2012-11-15 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Landwirtschaftliche Feldspritze
DE102013103620A1 (de) * 2013-04-11 2014-10-16 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Feldspritze
WO2014200896A1 (fr) * 2013-06-12 2014-12-18 Agco Coporation Procédé et système ayant un récipient de retenue intermédiaire permettant de combiner des substances d'injection chimiques pour un système de pulvérisation
EP3258779B1 (fr) * 2015-02-20 2021-09-22 René Proharam Dispositif de pulverisation de doses de differentes solutions aqueuses comprenant plusieurs produits additifs
DE102015105968A1 (de) * 2015-04-20 2016-10-20 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Flüssigkeitskreislauf einer Verteilmaschine

Also Published As

Publication number Publication date
DE102017220016A1 (de) 2019-05-16
WO2019091793A1 (fr) 2019-05-16

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