WO2023212830A1 - Autonome mühle und mahlverfahren - Google Patents
Autonome mühle und mahlverfahren Download PDFInfo
- Publication number
- WO2023212830A1 WO2023212830A1 PCT/CH2023/050012 CH2023050012W WO2023212830A1 WO 2023212830 A1 WO2023212830 A1 WO 2023212830A1 CH 2023050012 W CH2023050012 W CH 2023050012W WO 2023212830 A1 WO2023212830 A1 WO 2023212830A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grinder
- mill
- rollers
- particles
- control unit
- Prior art date
Links
- 238000003801 milling Methods 0.000 title abstract 6
- 239000002245 particle Substances 0.000 claims abstract description 67
- 239000000523 sample Substances 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 35
- 230000008569 process Effects 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 27
- 238000011109 contamination Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229930014626 natural product Natural products 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000533293 Sesbania emerus Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
Definitions
- the present invention relates to an autonomous mill for reducing the size of natural products and a grinding process.
- the purpose of a mill is to crush coarse material into a fine-grained end product, whereby the size of the ground particles in many cases represents the decisive quality feature and thus the guiding variable of the grinding process.
- the coarse material is usually conveyed between rollers arranged in pairs, with the rollers of a pair of rollers being spaced apart with a certain roller gap.
- the particle size of the resulting ground material depends on the width of the roll gap and can be adjusted by combining or Separation of the rollers can be adjusted.
- the ambient temperature, the temperature of the products to be ground, the pressure prevailing in the mill, the air humidity, the humidity of the products to be ground, the speed of the rollers, the roller temperature and those prevailing in the mill can also be taken into account Vibrations have an influence on the quality of the ground material or provide information about the performance of the mill.
- Vibrations have an influence on the quality of the ground material or provide information about the performance of the mill.
- To monitor and adjust the particle size ground material is typically pulled out of the mill using a sampling scoop, the sample is then analyzed in an external device and the mill settings are then adjusted depending on the measurement result.
- FIGS. 2a-b Schematic representations of embodiment variants of the mill according to the invention, side views in section
- the figures represent possible exemplary embodiments, which are explained in the following description.
- the autonomous mill comprises an inlet 1 for products P to be ground, at least one grinder 2, an outlet 3 for the ground material M, at least one particle measuring probe 4, a control unit and means for adjusting the grinder 2 ( Figures la -b).
- the at least one particle measuring probe 4 is arranged in the grinder 2 or between the grinder 2 and the outlet 3 and regularly measures the sizes of the particles passing it. The determined sizes are forwarded to the control unit, which uses these measured values to determine a size distribution.
- the means for adjusting the grinder 2 are activated.
- the means for adjusting the grinder 2 include, for example, drives with which the settings of the grinder 2 can be changed.
- a setpoint or comparison value for the desired size distribution of the particles of the ground material M is stored in the control unit and the measured size distribution of the particles is compared with this information. If the size distribution determined does not match the desired value, the settings of the grinder 2 are adjusted accordingly.
- the information about adjusting the settings is either in Depending on the existing measured values, they are stored as predefined values or as empirical values, or the settings are changed using the trial and error method until the desired size distribution of the particles is achieved.
- the determination of the size distribution of the ground particles by the particle measuring probe 4 and the corresponding adjustment of the settings of the grinder 2 are preferably carried out continuously, automatically and in real time during the grinding process. This control enables immediate reaction to changes in particle size without manual or external intervention to ensure consistent output quality at all times.
- the grinder 2 comprises at least one pair of rollers 21, which are spaced apart with a certain roller gap 22 (FIG. 1b). During the grinding process, the rollers 21 rotate against each other, so that the product P to be ground is conveyed through the roller gap 22 and ground into smaller particles.
- the particle measuring probe 4 is arranged after the pair of rollers 21 and determines the size distribution of the resulting particles.
- the width of the roller gap 22 depends on the measured size distribution of the ground Particles are dynamically adjusted by the control unit: If the particles are too large, the rollers 21 are moved together and the roller gap 22 becomes narrower - if the particles are too small, the rollers 21 are moved apart and the roller gap 22 becomes wider.
- the means for adjusting the grinder 2 are used to move the rollers 21 together and apart and are controlled by the control unit.
- a measuring unit can be provided which either directly measures the width of the roller gap 22 or the position of the axis of rotation of each roller 21.
- the grinder has 2 several pairs Has rollers 21, through which the product P to be ground is ground several times and into ever finer particles (Figure la).
- the several pairs of rollers can, for example, be arranged one after the other or one above the other so that the product to be ground passes from one pair of rollers to the next pair of rollers.
- the mill can be provided with a particle measuring probe 4 after each pair of rollers 21 to control the particle size and adjust each individual pair of rollers 21 ( Figure 2a).
- a single particle measuring probe 4 can also be arranged after the last pair of rollers 21 or in the outlet 3 or between the grinder 2 and the outlet 3 (FIG. 2b). It can be expected that the ground end product M is already sufficiently mixed by the different pairs of rollers 21 or by conveyors arranged between them, so that this single particle measuring probe 4 can determine representative measurements.
- the mill is provided with a suction device, which can take particle samples alternately from several different points of the grinder 2 using particle removal devices and transport them to a single particle measuring probe 4. This makes it possible to check the particle size at several points on the grinder 2 and to adjust each one Pair of rollers 21 without having to install several particle measuring probes 4 in the mill.
- Temperature The temperature of the products P to be ground can be monitored using a temperature probe in the inlet 1. If necessary, preconditioning of the products P to be ground can be provided in order to bring them to a certain temperature before they reach the grinder 2. The preconditioning ensures that there are no quality-relevant deviations in the temperature of the material to be ground in the grinder 2. The temperature of the material to be ground can also be monitored during the grinding process in the grinder 2 or in the process 3. Controlled heating or cooling means can be provided to maintain the temperature of the ground material around a predetermined setpoint. Of course, the same applies to the ambient temperature, which should also be kept as uniform as possible.
- Pressure in grinder 2 The pressure in grinder 2 can vary vary according to processed product P and during the
- Moisture The moisture of the products P to be ground can be monitored using a moisture probe in the inlet 1. If necessary, preconditioning of the products P to be ground can be provided in order to bring them to a certain moisture level before they reach the grinder 2. The preconditioning ensures that there are no quality-relevant deviations in the moisture content of the ground material in the grinder 2. The moisture of the ground material can also be monitored during the grinding process in the grinder 2 or in the process 3. Controlled humidification or drying means can be provided to maintain the moisture of the ground material around a predetermined setpoint. The humidity inside the mill and outside can also be controlled accordingly and kept as stable as possible. In advantageous variants of the mill, parameters are also monitored that provide information about the performance of the mill:
- Vibrations and roller temperature If the vibrations or the temperature of the rollers or the temperature of the roller coolant fluid change slowly and steadily for the same product, it can be assumed that the product is of poor quality or that the rollers are dirty. Heating is usually due to poorer heat dissipation due to dirt.
- defects can be detected early and the necessary repairs to the grinder 2 can be planned in good time or the ideal time for roller cleaning or roller replacement can be calculated.
- Contamination of the rolls can be compensated to a certain extent by regulating the roll gaps.
- Control unit stored.
- the mill is provided with an automatic roller cleaning system, which is automatically activated and controlled by the control unit when contamination of the rollers 21 is detected.
- the rollers must still be cleaned or replaced. To do this, the rollers must be removed, cleaned or replaced. replaced and reinstalled. The distances between the rollers are then re-referenced. Ideally, an empirical value after cleaning or replacing the rollers can be used for the reference setting. In certain cases the rollers need to be recalibrated with a test run. After maintenance or cleaning has been carried out on the system, the original setpoints are restored.
- a recipe is summarized in which one or more of the above-mentioned parameters, including at least the desired size distribution of the ground particles, be set as a target value. It is advantageous if recipe-specific tolerances are defined for each parameter in addition to the target value.
- these parameters are measured and compared by the control unit with the specified target value according to the recipe. If all measured values are in the desired range, it can be assumed that the ground material M is produced with the desired and constant quality. If the measured values do not correspond to the set target values, the settings of the grinder 2 are adjusted by the control unit using the means for adjusting the grinder 2.
- the determination of the size distribution of the ground particles by the particle measuring probe 4 and the corresponding adjustment of the settings of the grinder 2 are preferably carried out continuously, automatically and in real time during the grinding process.
- the mill emits a signal during the grinding process which contains the measured values or triggers an alarm if the measured values do not correspond to the desired target values.
- This signal can be, for example, a visual signal displayed on a screen.
- This signal can also be acoustic, especially if it serves as an alarm.
- the signal can also be electrical or be electromagnetic and sent by means of a cable or wirelessly to a separate electronic device, for example to a central control unit.
- the mill can be provided with a user interface and/or it can receive an electrical or electromagnetic signal from a separate electronic device that contains the parameters, setpoints and tolerances.
- the products P to be ground are either pre-weighed and dosed or the inlet 1 can be provided with an inline quantity measurement.
- the mill ensures consistent quality thanks to immediate correction of the quality-relevant parameters in the event of deviations from the set target value.
- the mill can be equipped with artificial intelligence, which can use machine learning to anticipate maintenance needs based on the measured parameters and plan them at the ideal time.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247039995A KR20250004356A (ko) | 2022-05-06 | 2023-05-04 | 자율 분쇄기 및 분쇄 방법 |
AU2023263589A AU2023263589A1 (en) | 2022-05-06 | 2023-05-04 | Autonomous mill and milling method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH000527/2022A CH719669A2 (de) | 2022-05-06 | 2022-05-06 | Autonome Mühle und Mahlverfahren. |
CHCH000527/2022 | 2022-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023212830A1 true WO2023212830A1 (de) | 2023-11-09 |
Family
ID=86604916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2023/050012 WO2023212830A1 (de) | 2022-05-06 | 2023-05-04 | Autonome mühle und mahlverfahren |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20250004356A (de) |
AU (1) | AU2023263589A1 (de) |
CH (1) | CH719669A2 (de) |
WO (1) | WO2023212830A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10218424A1 (de) * | 2001-04-30 | 2002-12-12 | Schmidt Seeger Ag | Schrotmühle sowie Verfahren zur Zerkleinerung von Mahlgut |
WO2006116882A1 (de) * | 2005-05-02 | 2006-11-09 | Bühler AG | System und verfahren zur partikelstrom-charakterisierung |
WO2014195309A1 (de) * | 2013-06-03 | 2014-12-11 | Bühler AG | Walzenpaarung, messeinrichtung, produktverarbeitungsanlage und verfahren |
WO2019223930A1 (de) * | 2018-05-25 | 2019-11-28 | Bühler AG | Getreidemühle und walzenstuhl mit mehreren mahlpassagen zum optimierten mahlen von mahlgut, sowie entsprechendes verfahren |
-
2022
- 2022-05-06 CH CH000527/2022A patent/CH719669A2/de unknown
-
2023
- 2023-05-04 AU AU2023263589A patent/AU2023263589A1/en active Pending
- 2023-05-04 WO PCT/CH2023/050012 patent/WO2023212830A1/de active Application Filing
- 2023-05-04 KR KR1020247039995A patent/KR20250004356A/ko unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10218424A1 (de) * | 2001-04-30 | 2002-12-12 | Schmidt Seeger Ag | Schrotmühle sowie Verfahren zur Zerkleinerung von Mahlgut |
WO2006116882A1 (de) * | 2005-05-02 | 2006-11-09 | Bühler AG | System und verfahren zur partikelstrom-charakterisierung |
WO2014195309A1 (de) * | 2013-06-03 | 2014-12-11 | Bühler AG | Walzenpaarung, messeinrichtung, produktverarbeitungsanlage und verfahren |
WO2019223930A1 (de) * | 2018-05-25 | 2019-11-28 | Bühler AG | Getreidemühle und walzenstuhl mit mehreren mahlpassagen zum optimierten mahlen von mahlgut, sowie entsprechendes verfahren |
Also Published As
Publication number | Publication date |
---|---|
AU2023263589A1 (en) | 2024-12-19 |
KR20250004356A (ko) | 2025-01-07 |
CH719669A2 (de) | 2023-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0179108B1 (de) | Infrarot messvorrichtung zur kontinuierlichen untersuchung von mahlgütern | |
EP2322911A1 (de) | Vorrichtung zum Bestimmen von Partikelgrössen | |
EP1158078B1 (de) | Sensor für den Kardierspalt beziehungsweise Nachstellen des Kardierspaltes | |
EP3500370A1 (de) | Überwachungs- und steuerungsvorrichtung zur automatisierten optimierung der vermahlungslinie eines walzensystems und entsprechendes verfahren | |
DE4444794A1 (de) | Verfahren zur Erkennung von Abnormalitäten und eines Stabilitätsgrads sowie ein Regelungsverfahren für Maschinen | |
EP3801909A1 (de) | Getreidemühle und walzenstuhl mit mehreren mahlpassagen zum optimierten mahlen von mahlgut, sowie entsprechendes verfahren | |
EP0043137B1 (de) | Verfahren und Vorrichtung zur kontinuierlichen Bestimmung der Feuchtigkeit von schüttfähigen Nahrungsmitteln | |
DE3241544A1 (de) | Verfahren zum ueberwachen und/oder steuern bei trocknungs-, granulier-, instantisier-, dragier- und filmcoating-prozessen sowie vorrichtung zur durchfuehrung des verfahrens | |
EP0243682B2 (de) | Regelung einer Rührwerksmühle | |
WO2000066963A1 (de) | Verfahren und vorrichtung zur optimierung der prozessführung sowie prozessüberwachung in einer anlage zur herstellung von teigwaren | |
DE3024794A1 (de) | Verfahren und vorrichtung zur bestimmung von kenngroessen, insbesondere von getreide | |
EP0991473A1 (de) | Speisesensorik | |
DE3139760A1 (de) | Walzwerk mit regulierbarer drehzahl der in einem festen drehzahlverhaeltnis stehenden, den einzugsspalt fuer das gut bildenden walzen sowie verfahren zu dessen gebrauch | |
DE10218424A1 (de) | Schrotmühle sowie Verfahren zur Zerkleinerung von Mahlgut | |
DE69404025T2 (de) | Regelungsverfahren für eine nach trockenmethode und in geschlossener regelschleife arbeitende zerkleinerungsanlage | |
WO2023212830A1 (de) | Autonome mühle und mahlverfahren | |
EP0215865A1 (de) | Verfahren zum einstellen der mahlwalzen bei walzenstühlen einer getreidemühlenanlage sowie getreidemühlenanlage zur durchführung des verfahrens. | |
DE19819614B4 (de) | Verfahren für die Vermahlung und/oder Schrotung von Körnerfrüchten sowie Vorrichtung zur Durchführung des Verfahrens | |
DE102017119069A1 (de) | Verfahren zum Befüllen von Behältern mit einem Füllprodukt | |
EP4308301B1 (de) | System und verfahren zum überwachen eines verschleiss an komponenten einer mahlanlage | |
AT523415B1 (de) | Vorrichtung zur ermittlung von wenigstens einer vorgebbaren physikialischen eigenschaft von gütern in einem materialstrom | |
EP0485772A2 (de) | Verfahren zur Messung der Mahlfeinheit bzw. der Schüttdichte, Einrichtung zur Durchführung des Verfahrens und Regeleinrichtung mit einer solchen Einrichtung | |
DE3707745A1 (de) | Verfahren und anlage zur steuerung der vermahlung einer teigig-pastoesen masse | |
EP3827670A1 (de) | Prozesslinie zur produktion von schokolade mit verschiedenen prozessstufen | |
DE102021206044A1 (de) | Überwachung der produktion von werkstoffplatten, insbesondere holzwerkstoffplatten, insbesondere unter verwendung einer selbstorganisierenden karte |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23726839 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2024/013717 Country of ref document: MX |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112024023074 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20247039995 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020247039995 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: AU2023263589 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023726839 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2023726839 Country of ref document: EP Effective date: 20241206 |
|
ENP | Entry into the national phase |
Ref document number: 2023263589 Country of ref document: AU Date of ref document: 20230504 Kind code of ref document: A |