WO2022178606A1 - Sistema e método de medição de granulometria de grãos e método de calibração de um sistema de medição de granulometria de grãos - Google Patents
Sistema e método de medição de granulometria de grãos e método de calibração de um sistema de medição de granulometria de grãos Download PDFInfo
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- WO2022178606A1 WO2022178606A1 PCT/BR2022/050054 BR2022050054W WO2022178606A1 WO 2022178606 A1 WO2022178606 A1 WO 2022178606A1 BR 2022050054 W BR2022050054 W BR 2022050054W WO 2022178606 A1 WO2022178606 A1 WO 2022178606A1
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- WO
- WIPO (PCT)
- Prior art keywords
- grain
- vibration
- granulometry
- flow
- measuring device
- Prior art date
Links
- 238000001033 granulometry Methods 0.000 title claims abstract description 71
- 238000005259 measurement Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 36
- 238000013178 mathematical model Methods 0.000 claims abstract description 32
- 238000000691 measurement method Methods 0.000 claims abstract description 15
- 235000010469 Glycine max Nutrition 0.000 description 5
- 244000068988 Glycine max Species 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 235000012055 fruits and vegetables Nutrition 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012787 harvest procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0255—Investigating particle size or size distribution with mechanical, e.g. inertial, classification, and investigation of sorted collections
-
- 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
- G01N29/14—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 using acoustic emission techniques
-
- 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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4436—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with a reference signal
-
- 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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4472—Mathematical theories or simulation
-
- 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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0255—Investigating particle size or size distribution with mechanical, e.g. inertial, classification, and investigation of sorted collections
- G01N2015/0261—Investigating particle size or size distribution with mechanical, e.g. inertial, classification, and investigation of sorted collections using impactors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N2015/0283—Investigating particle size or size distribution using control of suspension concentration
Definitions
- the present invention relates to a measuring system, a measuring method and a method of calibrating a system for measuring the granulometry of grains that have been subjected to a breaking process, in order to determine their granulometry and analyze its functioning.
- the present invention aims to provide a grain granulometry measurement system, a grain granulometry measurement method and a method for calibrating a grain granulometry measurement system.
- grains capable of performing a grain size measurement based on the vibration characteristics of a vibration generated by the impact of a grain flow on a surface.
- the measurement made by the system and methods of the present invention of the vibration characteristics generated by the impact of a grain flow on a surface results in a more accurate and efficient measurement of grain granulometry, such as broken soybeans , when compared to solutions available in the state of the art.
- the systems and methods of the present invention allow such measurement to be performed in an automated and continuous manner.
- the present invention describes a grain granulometry measuring system, which comprises a vibration measuring device and a processing unit.
- the processing unit is connected to the vibration measuring device.
- the vibration measuring device is configured to measure vibration characteristics of a vibration caused by impacts generated by a stream of grains in the vibration measurement device and send the measured vibration characteristics to the processing unit.
- the processing unit can be configured to estimate the grain flow granulometry from the vibration characteristics.
- the grain flow granulometry can be estimated from a predetermined mathematical model in the processing unit.
- the mathematical model can be determined from the vibration characteristics measured from a grain flow of samples classified according to granulometry.
- the vibration measuring device may comprise a vibration sensor.
- the vibration sensor can be an accelerometer.
- the vibration sensor can be a capacitive accelerometer.
- the vibration measuring device may comprise a shield, wherein the impacts generated by the flow of grains on the vibration measuring device are generated on the shield.
- the bulkhead can be a contact surface configured to resist impacts with the grain flow and allow the vibration sensor to collect information regarding impacts generated by the grain flow.
- the surface of the screen can be inclined with respect to the grain flow direction.
- the vibration measuring device may further comprise a regulator and a passageway, wherein the regulator is associated with the passageway and the passageway is associated with the screen, where the regulator limits the flow of grain, where the screen is inclined with respect to the longitudinal axis of the passageway.
- the present invention describes a grain granulometry measurement method, which comprises the steps of: measuring vibration characteristics caused by the impact of a grain flow on a vibration measuring device; and calculate a granulometry of grains present in the grain flow from the measured vibration characteristics.
- the step of calculating the grain size comprises inserting the vibration characteristics in a predefined mathematical model.
- the grain granulometry measurement method may additionally comprise a step of creating a mathematical model from the vibration characteristics of a grain stream of individually sieved samples.
- the present invention also describes a method of calibrating a grain granulometry measurement system, which comprises the steps of: classifying grain samples according to granulometry; measuring vibration characteristics of a vibration caused by the impact of a stream of grains from each of the grain samples on a vibration measuring device; and create a mathematical model from the vibration characteristics measured for each of the grain samples.
- the mathematical model can be a set of equations created in order to allow a grain size to be calculated from a grain flow of unknown grain size.
- the step of classifying individual grain samples can be carried out by means of a sieve.
- Figure 1 - is a schematic diagram of an embodiment of the grain size measuring system of the present invention
- Figure 2 is a side view of the vibration measuring device of an embodiment of the grain size measuring system of the present invention
- Figure 3 - is a sequence of steps of an embodiment of the calibration method of a grain granulometry measuring system of the present invention.
- Figure 4 is a sequence of steps of an embodiment of the grain size measurement method of the present invention.
- FIG. 1 illustrates a schematic diagram of the grain size measurement system 100 in accordance with an embodiment of the present invention.
- the grain size measuring system 100 comprises a vibration measuring device 110 and a processing unit 150.
- the vibration measuring device 110 and the processing unit 150 are connected together, so that the vibration measuring device 110 is configured to send information to the processing unit 150.
- transmission of signals that may occur over physical or remote connections, and is not limited to any specific type of signal transmission.
- the grain size measuring system 100 of the present invention is positioned close to a grain flow source 101 from which a grain stream originates.
- An example of a grain flow source 101 is a crusher mill.
- the crushing mill can be, for example, a mill soy bean breaker.
- the grain granulometry measurement system 100 is able to assess whether the soybean processed in the crusher mill is within the desired specifications.
- the mill is used as an example grain flow source 101 in this embodiment, the grain flow may come from other sources, such as, for example, a storage container or a plurality of sieves. This last example can be used, for example, during system calibration.
- the vibration measuring device 110 comprises a hollow body with a square, rectangular or circular cross section.
- the body of the vibration measuring device 110 comprises a collection element 112, a grain accumulator 114, a regulator 116, a first return path 118, a vibration sensor 119, a second return path 122 and a shield 120.
- These elements comprised in the body of the vibration measuring device 110 are associated with each other so that the grain flow from the grain flow source 101 can flow inside the vibration measuring device 110 so that the grain granulometry measurement can be to be fulfilled.
- the collection element 112 is responsible for collecting the grain flow.
- the collection element 112 comprises a grain stream receiving end where the grains of the grain stream are received.
- the receiving end is an open section of the hollow body that allows grain to flow into the device.
- the opening of the open section can be accentuated by a longitudinal cut in a portion of the collecting element 112, facilitating the reception of the grains.
- the collection element 112 associates with the grain accumulator 114 where the grain flow is directed after being received in the vibration measuring device 110.
- the grain accumulator 114 in addition to being associated with the collection element 112, is also associated with the first return path 118 and with the regulator 116.
- the grain accumulator 114 is configured to accumulate the grains coming from the collection element 112 and which will later pass through the regulator 116 or the first return path 118. By accumulating the grains inside, the grain accumulator 114 can reach a grain accumulation limit, which is determined by its constructive characteristics . Upon reaching the grain accumulation limit, the grains accumulated in the grain accumulator 114 are directed to the first return path 118.
- the first return path 118 is configured to limit the amount of grain accumulated in the grain accumulator 114. When the grain accumulation reaches the position where the first return path 118 associates with the grain accumulator 114, the grains are directed to the first return path 118. When passing through the first return path 118, the grains are directed for other purposes, such as, for example, returning to the grain flow that will be measured by the vibration measuring device 110 or going to another destiny.
- the regulator 116 is the component of the vibration measuring device 110 responsible for regulating the flow of grain to be measured. In other words, if the grain flow is above the flow suitable for carrying out the measurement, it is restricted or limited by the regulator 116.
- the regulator 116 represents a narrowing region of the body of the vibration measuring device 110. , that is, a reduction of the cross section at a given point. Such a narrowing is responsible for regulating the passage of the grain flow. Although a specific way of regulating the grain flow is described, other limiting means can be used.
- the regulator 116 is associated with the grain accumulator 114 and a passageway 117 that directs the flow of grain to the screen 120, where the vibration sensor 119 performs the measurement.
- Shield 120 is a contact surface of vibration measuring device 110 configured to be impacted by grain flow.
- Shield surface 120 is a surface configured to resist impacts from the grain flow and generate vibration from that impact. This vibration is capable of being measured by the vibration sensor 119 located near or on the bulkhead and allows the vibration sensor 119 to collect information regarding the impacts generated by the flow of grain on the bulkhead 120.
- the screen 120 is inclined with respect to the longitudinal axis of the passageway 117, that is, inclined with respect to the grain flow direction. Such an inclination allows the grain flow to contact the shield 120, resulting in an impact that generates vibration.
- the vibration sensor 119 of the vibration measuring device 110 is an accelerometer capable of measuring the proper acceleration of the vibration measuring device 110 with respect to the grain flow.
- the accelerometer is a capacitive accelerometer.
- other types of accelerometers can also be used, such as, for example, a piezoelectric accelerometer and a piezoresistive accelerometer.
- vibration sensor 119 may be another type of sensor capable of measuring impact force, vibration, and/or acceleration.
- the vibration sensor 119 is the element of the vibration measuring device 110 responsible for translating the impact vibration received by the shield 120 when striking the grain stream into an electrical signal that can be sent to the processing unit 150 for processing the information.
- the vibration measuring device 110 is capable of measuring vibration characteristics of the vibration caused by the grain flow impacts on the shield 120 and sending the measured vibration characteristics to the processing unit 150.
- the vibration characteristics are the information related to the frequency that the vibration sensor 119 is able to pick up from the vibration generated by the impact of the grain flow on the screen 120. These vibration characteristics are sent to the processing unit 150 to that the processing unit 150 can estimate the granulometry of the flow of grains whose vibration characteristics have been measured.
- the grain flow can be metered so that the impact of each grain in the grain flow is spaced so as to generate a dynamic response without overlap. In this way, it would also be possible to analyze the signals in the time domain to estimate the granulometry.
- the grain flow granulometry is estimated from a predetermined mathematical model present in the processing unit 150.
- the mathematical model is a set of equations created in order to allow the control unit to be able to calculate the grain size of a stream of grains of unknown grain size.
- Such mathematical model can be inserted in the processing unit 150 from information from external databases or developed from a calibration made in the grain granulometry measurement system 100 itself.
- the mathematical model of the calibration is determined by from the vibration characteristics measured from a grain flow of samples classified according to granulometry.
- Figure 3 illustrates the calibration method of the grain size measurement according to an embodiment of the present invention.
- the calibration method of the grain size measurement system is one of the ways to determine the mathematical model to be used in grain flow measurements. Furthermore, in one embodiment, the method of calibrating the grain size measurement system is made to work under the conditions of the location where the grain size measurement system will be installed.
- the calibration method is performed by collecting vibration data from individually sieved grain samples.
- the individual vibration data are stored and processed in the processing unit, through computer programs and algorithms created to develop the mathematical model, which aims to perform grain granulometry measurements with precision and accuracy.
- a step is performed to separate 210 samples of grains according to their granulometric characteristics. Grain samples are sets of grains separated into groups with similar characteristics. Then, a step of classifying the grain samples according to their granulometries is performed. The step of classifying individual grain samples can be carried out, for example, by means of sieving, or any other means of classifying grain samples.
- This separation 210 and classification 220 of the grain samples allows the processing unit to create the mathematical model that will be used in the grain size measurement method.
- a step is performed to generate 230 a grain flow for each of the grain samples separately. So is A step of measuring the vibration characteristics of the vibration caused by the impact of the grain flow of each of the grain samples on the vibration measuring device is performed. In other words, each grain stream generated for each of the grain samples is brought into contact with the vibration measuring device. These contacts, or impacts, generate a vibration with different vibration characteristics for each of the grain samples. Crossing the information of the different vibration characteristics with the known granulometries of the grain samples allows the creation of the mathematical model.
- the vibration sensor of the vibration measuring device performs a step of translating the generated vibrations into electrical signals and sending these signals to the processing unit.
- the processing unit Upon receiving the signal from the vibration measuring device, the processing unit initiates a step of performing 260 signal processing of the received signals. Subsequently, there is a step of performing a data processing in order to organize and extract relevant information from the measured vibration characteristics.
- the mathematical model is a set of equations created in order to allow the processing unit to calculate the grain size of a grain stream of unknown grain size.
- the grain granulometry measurement system is calibrated so that the flows of grains of unknown granulometry can be measured.
- Figure 4 illustrates the granulometry measurement method of grains according to one embodiment of the present invention.
- the grain size measurement method is performed to measure the grain size of a grain stream from a grain crusher mill or any other source of breakage and/or storage of grain, such as, for example, grains. soy beans.
- the grain flow comprising the grains to be measured.
- the grain flow When coming into contact with the vibration measuring device of the grain size measuring system, the grain flow generates a vibration caused by the impact of the grains on the vibration measuring device.
- a step of measuring 320 the vibration characteristics caused by this grain flow impact on the vibration measuring device is then performed.
- the step of measuring 320 the vibration characteristics is performed by the vibration measuring device, which then performs a step of translating 330 the measured vibration characteristics into an electrical signal that can be sent to the unit of processing.
- the processing unit Upon receiving the signal from the vibration measuring device, the processing unit initiates a step of performing 340 signal processing of the received signals. Subsequently, there is a step of performing data processing in order to organize and extract relevant information from the measured vibration characteristics.
- the grain granulometry measurement method also comprises a step of inserting 360 the vibration characteristics in the mathematical model predefined in the processing unit.
- inserting the vibration characteristics into the predefined mathematical model is possible after the described processing is performed.
- the model predefined mathematician in the processing unit is a model created from a calibration method of a grain granulometry measurement system, as previously described.
- the mathematical model can also be created in an additional step present in the grain granulometry measurement method itself, that is, a step of creating the mathematical model from the vibration characteristics of a grain stream of individually sieved samples.
- the mathematical model can be obtained from information from external databases, without the need for calibration.
- the processing unit When entering the vibration characteristics in the predefined mathematical model, the processing unit performs a step of calculating the granulometry of grains present in the grain flow. Calculating the grain size distribution of the grain flow from the crusher mill allows estimating the grain size distribution of the broken grains. Estimating the particle size distribution of the broken grains allows you to assess whether the broken grains are within the desired specifications.
- the embodiments of the calibration method of a grain granulometry measurement system described allow the creation of a mathematical model to calculate the granulometry of grains present in a grain flow. This model is created more efficient and accurate than the teachings known in the prior art.
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22717713.6A EP4300074A1 (en) | 2021-02-23 | 2022-02-22 | Grain granulometry measurement system and method and calibration method for a grain granulometry measurement system |
CA3209370A CA3209370A1 (en) | 2021-02-23 | 2022-02-22 | System and method for measuring grain particle granulometry and grain particle granulometry measurement system calibration method |
CN202280029446.XA CN117501093A (zh) | 2021-02-23 | 2022-02-22 | 谷物粒度测量系统和方法以及用于谷物粒度测量系统的校准方法 |
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BRBR102021003364-9 | 2021-02-23 | ||
BR102021003364-9A BR102021003364B1 (pt) | 2021-02-23 | 2021-02-23 | Sistema e método de medição de granulometria de grãos e método de calibração de um sistema de medição de granulometria de grãos |
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Publication Number | Publication Date |
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WO2022178606A1 true WO2022178606A1 (pt) | 2022-09-01 |
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PCT/BR2022/050054 WO2022178606A1 (pt) | 2021-02-23 | 2022-02-22 | Sistema e método de medição de granulometria de grãos e método de calibração de um sistema de medição de granulometria de grãos |
Country Status (6)
Country | Link |
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EP (1) | EP4300074A1 (pt) |
CN (1) | CN117501093A (pt) |
AR (1) | AR124953A1 (pt) |
BR (1) | BR102021003364B1 (pt) |
CA (1) | CA3209370A1 (pt) |
WO (1) | WO2022178606A1 (pt) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5309374A (en) * | 1992-08-03 | 1994-05-03 | Iowa State University Research Foundation, Inc. | Acoustic and video imaging system for quality determination of agricultural products |
EP3395154A1 (en) * | 2017-04-25 | 2018-10-31 | Intelligent Agricultural Solutions, LLC | Harvesting machine capable of automatic adjustment and harvesting machine control method |
WO2021003346A1 (en) * | 2019-07-03 | 2021-01-07 | Donaldson Company, Inc. | Fluid aeration detection systems and methods |
-
2021
- 2021-02-23 BR BR102021003364-9A patent/BR102021003364B1/pt active IP Right Grant
-
2022
- 2022-02-22 CA CA3209370A patent/CA3209370A1/en active Pending
- 2022-02-22 CN CN202280029446.XA patent/CN117501093A/zh active Pending
- 2022-02-22 EP EP22717713.6A patent/EP4300074A1/en active Pending
- 2022-02-22 WO PCT/BR2022/050054 patent/WO2022178606A1/pt active Application Filing
- 2022-02-23 AR ARP220100388A patent/AR124953A1/es unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5309374A (en) * | 1992-08-03 | 1994-05-03 | Iowa State University Research Foundation, Inc. | Acoustic and video imaging system for quality determination of agricultural products |
EP3395154A1 (en) * | 2017-04-25 | 2018-10-31 | Intelligent Agricultural Solutions, LLC | Harvesting machine capable of automatic adjustment and harvesting machine control method |
WO2021003346A1 (en) * | 2019-07-03 | 2021-01-07 | Donaldson Company, Inc. | Fluid aeration detection systems and methods |
Also Published As
Publication number | Publication date |
---|---|
EP4300074A1 (en) | 2024-01-03 |
AR124953A1 (es) | 2023-05-24 |
CA3209370A1 (en) | 2022-09-01 |
BR102021003364B1 (pt) | 2022-09-27 |
BR102021003364A2 (pt) | 2021-09-14 |
CN117501093A (zh) | 2024-02-02 |
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