EP3142474A1 - Procédé et dispositif pour régler un degré de séchage spécifique pour une semence pendant le processus d'immunisation - Google Patents

Procédé et dispositif pour régler un degré de séchage spécifique pour une semence pendant le processus d'immunisation

Info

Publication number
EP3142474A1
EP3142474A1 EP15721262.2A EP15721262A EP3142474A1 EP 3142474 A1 EP3142474 A1 EP 3142474A1 EP 15721262 A EP15721262 A EP 15721262A EP 3142474 A1 EP3142474 A1 EP 3142474A1
Authority
EP
European Patent Office
Prior art keywords
pickling
seed
container
sound
measured
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Withdrawn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
EP15721262.2A
Other languages
German (de)
English (en)
Inventor
Stephan Tosch
Lothar Schmidt
Reinhard Gross
Guido WENIG
Volker Michele
Carsten Conzen
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.)
Bayer CropScience AG
Original Assignee
Bayer CropScience 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 Bayer CropScience AG filed Critical Bayer CropScience AG
Publication of EP3142474A1 publication Critical patent/EP3142474A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/06—Coating or dressing seed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/08—Immunising seed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02845—Humidity, wetness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2698—Other discrete objects, e.g. bricks

Definitions

  • the invention relates to a method by which a certain degree of dryness of the seed can be adjusted during seed dressing.
  • the invention also relates to a device with which the method according to the invention can be carried out, and the use of this device.
  • this is placed in the container of a pickling device, the pickling tank, and an aqueous pickling solution and / or suspension, also called pickle, added, this container or a part of the container Pickling moves, preferably rotated.
  • the moving part of the container may be, for example, the bottom of the container.
  • this stain contains, among other things, agrochemical active substances such as, for example, neonicotinoids, which are intended to ensure that the seed and the plant resulting therefrom are protected against pests and fungi.
  • the stain may contain additives in dissolved or in particulate form. These may be dyes, auxiliaries such as polymeric binders, mineral fillers and other additives.
  • the pickling gas preferably air, which may have a higher temperature than the ambient air, that can be preheated, is passed into the container of the pickling device to accelerate the drying of the stain on the seed.
  • the pickling time for the optimum degree of drying is determined empirically.
  • the degree of dryness and the flowability of the seed are determined after various pickling times and from this the optimum pickling time for a certain degree of dryness is determined.
  • This method has the disadvantage that it is on the one hand by the necessary preliminary tests consuming and error-prone to another, since the pickling period depends strongly on variable and difficult to influence parameters such as the temperature of the seed and the ambient air and in particular the prevailing humidity. This can lead to the determined pickling time being too short or too long. In addition, even in the experiments to determine the pickling unnecessarily dust.
  • the degree of dryness of the seed in the pickling process is determined by connecting a dust measuring device to the pickling device, which controls the progress of the pickling process via dust generation and interrupts the pickling process for a given dust production.
  • the pickling process is regularly interrupted too late in this process, since only dust must occur before the pickling process is interrupted.
  • the seeds of the seed are batchwise differently moist in and of itself, for example, due to different origin and storage or because different locations of a storage container may be differently humid; This causes fluctuations from measurement to measurement, which can only be compensated by a high calibration effort incomplete.
  • the most accurate method known from the prior art for detecting the optimum degree of drying during pickling is the recognition of this degree of drying by a specialist by changing the noise development, that is also the change of the sound development, during the pickling process.
  • the different surface roughnesses of the dry unheated, wet pickled or pickled dried seed result in a change in the flow profile of the seed in the pickling device as well as the friction of the seeds with each other and with the wall. This is accompanied by a change in the sound development caused by the movement of the seeds in the pickling device during pickling.
  • this development of sound initially reduces drastically and increases again during drying.
  • the object of the present invention is to overcome the disadvantages of the prior art.
  • the object of the present invention is to provide a device and a method with which the optimum degree of dryness of the seed can be set in a pickling process.
  • the object is achieved by a pickling device, with which the pickling process can be used to set the optimum degree of drying of the pickled seed, comprising a measuring and regulating device, and by a method with which this measuring and regulating device is used the optimum degree of dryness of the seed is set in a pickling process.
  • Examples of the measuring and control device according to the invention - without limiting the invention thereto - are: - a device comprising a unit for measuring the sound, in particular the sound level, of the pickling device and / or parts of this device and in the pickling device contained seed. a device comprising a unit for measuring the speed with which the seed moves when the container or a part of the container of the pickling device is moved. This speed measurement is preferably carried out by means of radar waves. a device comprising a unit for measuring the filling level of the seed, preferably on the container wall. a device comprising a unit for measuring the torque of the shaft, which moves the container or the moving part of the container of the pickling device. - A device comprising a unit for measuring the active power of the motor, which moves the container or the moving part of the container of the pickling device. ⁇
  • -4- a device comprising a unit for measuring the current consumption of the motor, which moves the container or the moving part of the container of the pickling device.
  • the measuring and control device comprises in addition to the measuring unit at least one converter, which converts the value of the measured variable (eg, sound, speed, level, torque, active power, power consumption) into an electrical or optical signal, an evaluation unit, and a signal output.
  • This signal output is connected to the pickling device, in particular its control, in such a way that the pickling method is interrupted by outputting a corresponding signal from the signal output.
  • the pickled seed of the pickling device can be removed.
  • the seed may be subjected to a further pickling operation in the same pickling apparatus, with a pickling of the same composition as in the previous pickling operation or with a pickling of a different composition as in the previous pickling operation and / or for further chemical and / or physical treatment.
  • the pickling device can also have a plurality of measuring and control devices which measure different measured variables, the value of which depends on the degree of dryness of the seed during the pickling process.
  • the measuring and control device comprises an electroacoustic device.
  • an electroacoustic device preferably comprises as a measuring unit a vibration sensor or an acceleration sensor, in particular a sound sensor.
  • the measuring unit and the converter form a unit in the form of a microphone, in particular a structure-borne sound microphone.
  • the transducer is positioned so that it can pick up the sound caused by the seeds in the pickling device.
  • the sound pickup is preferably attached to the pickling device, more preferably to a non-moving part of the pickling device, for example its outer wall. This has the advantage that the sound sensor is disturbed only slightly or not at all by sound or other vibrations or influences from the environment.
  • the sound pickup can also be positioned in the pickling tank. This has the advantage that the sound caused by the seed reaches the sound pickup with very high intensity.
  • the sound pickup can also be positioned in the vicinity of the pickling device. This has the advantage that no attachment to or in the pickling device has to be provided for the sound pickup.
  • the measurement and control device comprises one or more of the devices selected from the group of the following devices:
  • a device for measuring the speed with which the seed moves when the container or the moving part of the container of the pickling device is moved whereby the speed measurement preferably takes place by means of radar waves
  • a device for measuring the current consumption of the motor which moves the container or the moving part of the container of the pickling device.
  • Another object of the invention is a method for adjusting the optimum degree of dryness of seeds in pickling.
  • the optimum degree of dryness of the seed is determined continuously by means of a measuring and control device connected to the pickling device by measuring a measured variable whose value changes during the pickling process as a function of the degree of drying.
  • the optimum degree of drying is determined and the pickling process is interrupted when this optimum degree of drying is reached.
  • "continuously" in connection with the measuring and control device means that a process is repeated at least once every five seconds, preferably at least once every three seconds, more preferably at least once per second, and most preferably several times per second, in particular five - done up to ten times a second.
  • the evaluation unit of the measuring and control device measures the measured variable continuously and also has an algorithm that continuously evaluates the change in the measured variable as a function of time.
  • the algorithm is started at the latest when all the seed has been filled into the pickling tank, it has moved and the other pickling equipment, such as the engine and air injection, has been put into operation.
  • the algorithm preferably also determines the then prevailing average value of the measured variable and determines it as a basic value for the determination of the optimum degree of drying, in particular as far as the measured variable the sound, in particular the sound level, the speed at which moves the seed when the container or the moving part of the container of the pickling device is moved, or the height of rise of the airfoil of the seed, while it is moved in the pickling device, have been selected as the measured variable.
  • the average fluctuation of the value of the measured variable is also determined. When adding the pickling, the value of the measured variable changes greatly.
  • the algorithm determines, for example, by comparing the values of a specific measured value of the measured variable with the values of the preceding values of the measured variable or by means of the first derivative of the smoothed curve of the measured variable over time, the minimum value of the measured variable after addition of the pickling.
  • a smoothed curve in the sense of this application, for example, a curve can be used in which a point of this curve represents the average of the N preceding points, where N is a positive integer in the range of 2 to 10, preferably in the range of 3 to 7, and 5 is particularly preferred.
  • the value of the measured variable increases again.
  • a value of the measured quantity which is a certain portion Q of the difference between the average value of the measurand before the addition of the stain and the minimum value of the measurand after the addition of the stain is greater than the minimum sound level after the addition of the stain the optimum degree of drying is achieved.
  • the algorithm then generates a signal through which the pickling process is interrupted via the signal output of the evaluation unit.
  • Q is determined by calibration.
  • Q depends on the pickling device, the nature of the seed, the type of pickling, the selected metric, the degree of drying, which is considered to be the optimum degree of drying, and whether the degree of dryness refers to the coating as a whole or only to the surface of the coating
  • Q is preferably in the range of 20 to 60%, preferably in the range of 30 to 50%, particularly preferably in the range of 35 to 45%.
  • Q is about 40% for the above-mentioned measured values (1) to (3).
  • the algorithm works on the measures (a) to (c) as follows:
  • the pickling process is preferably interrupted. Thereafter, the pickled seed of the pickling device can be removed. Alternatively, the seed may be subjected to a further pickling operation in the same pickling apparatus, with a pickling of the same composition as in the previous pickling operation or with a pickling of a different composition as in the previous pickling operation and / or for further chemical and / or physical treatment.
  • the time of addition of the stain may be applied to the measuring and control device by manual input, for example by pushing a button, by a signal from the control of the pickling device to the measuring and control device, for example when the stain is automatically added by the pickling device , be transmitted, or be determined by an algorithm of the measuring and- control device itself.
  • This algorithm can, for example, work in such a way that, in addition to the average value of the measured variable after complete addition of the seed, but also before addition of the pickling, it also determines the average fluctuation of the measured variable.
  • the value of the measured quantity decreases by an amount which is greater than twice, preferably as three times, more preferably four times, very particularly preferably five times the average variation of the measured quantity before the pickling is added.
  • the algorithm evaluates this as the addition of the stain. From the addition of the stain, regardless of how the measuring and control device obtains this information, the algorithm determines the minimum value of the measured variable after adding the stain.
  • the pickle addition timing algorithm may operate to view the absolute minimum of the first derivative of the smoothed curve of the measurement over time as that instant.
  • the method for setting a certain degree of dryness of seed in pickling processes comprises the following steps, if the measurement (a) of the sound, in particular the sound level caused by the pickling device and / or parts of this device and the seed contained in the pickling device, ( b) the rate at which the seed moves as the container or moving part of the pickling device container is moved, (c) the height of rise of the airfoil of the seed as it is moved in the pickling device, or a measurand is used, which behaves analogously to the abovementioned measured quantities during the pickling process:
  • the sound in particular the sound level, is preferably selected as the measured variable.
  • the temporal change of the sound curve is used to determine the end point (1st mathematical derivative) to determine a threshold value for the shutdown.
  • the minimum of the 1st derivative is searched for a time t1, this minimum being greater than twice, preferably as three times, more preferably as four times, very particularly preferably five times the average variation of the first derivative the measured quantity before adding the stain.
  • the time-related sound value is defined as the threshold value for the end point. This can be weighted by the factor F to initiate an earlier or later shutdown. After a time t2, the threshold value is compared with the current sound value.
  • the factor F is usually determined empirically in order to optimally adapt the algorithm to a specific combination of pickling device, seed and pickling solution.
  • F typically takes on values in the range between 0.7 and 1.3, but may well assume values in the range between 0.5 and 1.5. In individual cases, even more extreme values are possible to optimally manage the process. If a factor F is determined, according to the invention the threshold value is corrected by the multiplication by F.
  • the optimal end point is reached when the sound value is equal to or greater than the threshold value.
  • the threshold is redetermined with each process start. The algorithm can be applied without adjustment for different pickling devices.
  • This algorithm is particularly advantageous when the determination of the value Q from the above-described method is difficult. This may for example depend on the pickling apparatus used, the seed used or the pickling solution used.
  • the algorithm preferably evaluates the first derivative of the smoothed curve in cases (d) to (f).
  • the time of addition of the stain can thereby the measuring and control device by manual input, for example by pressing a button, by a signal of the control of the pickling device to the measuring and control device, for example when the pickling automatically added by the pickling device will be transmitted, or determined by an algorithm of the measuring and control device itself.
  • this algorithm may operate to determine the first derivative of the smoothed curve of the measurand over time.
  • the time of addition of the stain is then determined by a first maximum of the first derivative after complete addition of the seed, this maximum being greater than two times, preferably as three times, more preferably four times, most preferably five times the average Fluctuation of the first derivative of the measurand before adding the stain.
  • the algorithm evaluates this as the addition of the stain. After reaching this first maximum, the values of the first derivative of the smoothed curve of the measured variable decrease again over time, but remain higher than the values before addition of the mordant. In the case of highly advanced drying, the values of the first derivative of the smoothed curve of the measured variable rise again over time and form a second maximum after complete addition of the seed. When this second maximum is reached, the optimum degree of drying is achieved.
  • the algorithm works with the measured quantities (d) to (f) as follows: Determining the values of the first derivative of the smoothed curve of the values of the measured variable over the time of the pickling device in operation after adding the seed but before adding the pickle.
  • Detecting the time of addition of the pickle for example by manual input, by a signal of the control of the pickling device to the measuring and control device, for example, when the pickling is added automatically by the pickling device, or by determining the first maximum of the values first derivative of the smoothed curve of the measured value values over time after complete addition of the seed.
  • the pickling process is preferably interrupted, alternatively continued for a fixed or variable time and then interrupted. Thereafter, the pickled seed of the pickling device can be removed. Alternatively, the seed may be subjected to a further pickling operation in the same pickling apparatus, with a pickling of the same composition as in the previous pickling operation or with a pickling of a different composition as in the previous pickling operation and / or for further chemical and / or physical treatment.
  • the method for setting a certain degree of dryness of seed in pickling processes comprises the following steps, as measured variable (4), the torque of the shaft, which moves the container or the moving part of the container of the pickling device, (5) the active power of the motor, the (6) the current consumption of the motor which moves the container or the moving part of the container of the pickling device, or a measured variable is used, which behaves in the pickling analogous to the aforementioned parameters:
  • the effective power is preferably used as the measured variable.
  • Example 1 Pickling experiment with measurement of the sound level and determination of a threshold value (minimum first derivative of the sound level):
  • Corn seed was placed in the rotating mixing cone over a silo or by hand. There was a strong signal increase of the vibration sensor. The larger the drop height, the larger the amplitude of the vibration sensor. It can come to a delayed maximum amplitude when the engine does not directly reach the maximum speed or is slowed down by the load strong. During loading, the highest sound amplitude is expected.
  • FIG. 1 shows a diagram in which the profile (3) of the measured values of the sound level in m / s 2 over time during seed dressing is shown. It can clearly be seen that the sound level during filling of the seed (1) rises sharply in a short time and then remains at about the same level. With the addition of stain (4) then the sound level falls sharply in a short time and remains for a longer time at about the same level, before it rises again with increasing drying of the seed.
  • FIG. 2 shows a diagram in which the course (7) of the measured values of the active power, indicated by a signal voltage in volts [V], over time is shown. It can clearly be seen that the measured quantity increases rapidly during filling of the seed (1) in a short time and then remains at approximately the same level. When the pickle (4) is added, the active power then rises again sharply, only to increase only slightly as the drying progresses. Only with strongly advanced drying does the measured quantity increase strongly again.
  • Fig. 3 shows a pickling device according to the invention. This includes: 9 pickling apparatus

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Sowing (AREA)

Abstract

L'invention concerne un procédé à mettre en œuvre lors de l'immunisation d'une semence, qui permet de régler un degré de séchage spécifique pour la semence immunisée. Cette invention concerne en outre un dispositif permettant d'effectuer ledit procédé, ainsi que l'utilisation de ce dispositif.
EP15721262.2A 2014-05-12 2015-05-11 Procédé et dispositif pour régler un degré de séchage spécifique pour une semence pendant le processus d'immunisation Withdrawn EP3142474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14167870 2014-05-12
PCT/EP2015/060365 WO2015173189A1 (fr) 2014-05-12 2015-05-11 Procédé et dispositif pour régler un degré de séchage spécifique pour une semence pendant le processus d'immunisation

Publications (1)

Publication Number Publication Date
EP3142474A1 true EP3142474A1 (fr) 2017-03-22

Family

ID=50685804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15721262.2A Withdrawn EP3142474A1 (fr) 2014-05-12 2015-05-11 Procédé et dispositif pour régler un degré de séchage spécifique pour une semence pendant le processus d'immunisation

Country Status (7)

Country Link
US (1) US20170142892A1 (fr)
EP (1) EP3142474A1 (fr)
CN (1) CN106455483A (fr)
AR (1) AR100503A1 (fr)
AU (1) AU2015261054A1 (fr)
CA (1) CA2948557A1 (fr)
WO (1) WO2015173189A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109479440B (zh) * 2018-11-16 2021-07-20 大冶市古华实业有限公司 一种农业科研育种用浸种消毒装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE531509C (de) * 1927-04-26 1931-08-10 Ignaz Kreidl Dr Verfahren zum Beizen von Saatgut
CH423355A (de) * 1959-06-24 1966-10-31 Muehlenbau Dresden Veb Verfahren und Vorrichtung zur Beizung von Saatgut, insbesondere zur Bekämpfung von Pilzkrankheiten und zur Stimulation
DE1292434B (de) * 1959-09-23 1969-04-10 Muehlenbau Dresden Veb Verfahren und Vorrichtung zur Beizung und zur Stimulation von Saatgut durch Benetzungs- und Waermebehandlung
DE3403069A1 (de) * 1984-01-30 1985-08-08 Mantis ULV-Sprühgeräte GmbH, 2050 Hamburg Vorrichtung zum feuchtbeizen von saatgut
DE4128258A1 (de) * 1991-08-10 1993-02-11 Saat & Erntetechnik Gmbh Verfahren zur gleichmaessigen geschlossenen beschichtung von koernern, wie samenkoerner, mit einem rotorgranulator mit integrierter fliessbett-trocknung und eine vorrichtung zu seiner durchfuehrung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015173189A1 *

Also Published As

Publication number Publication date
AR100503A1 (es) 2016-10-12
WO2015173189A1 (fr) 2015-11-19
US20170142892A1 (en) 2017-05-25
CA2948557A1 (fr) 2015-11-19
CN106455483A (zh) 2017-02-22
AU2015261054A1 (en) 2016-11-24

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