EP3972737B1 - Procédé de supervision d'un broyeur de rouleaux à haute pression - Google Patents

Procédé de supervision d'un broyeur de rouleaux à haute pression Download PDF

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Publication number
EP3972737B1
EP3972737B1 EP21730515.0A EP21730515A EP3972737B1 EP 3972737 B1 EP3972737 B1 EP 3972737B1 EP 21730515 A EP21730515 A EP 21730515A EP 3972737 B1 EP3972737 B1 EP 3972737B1
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EP
European Patent Office
Prior art keywords
roller
press
computer
data
analysis
Prior art date
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Application number
EP21730515.0A
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German (de)
English (en)
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EP3972737A1 (fr
Inventor
Max BUCHMEIER
Eggert De Weldige
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.)
Maschinenfabrik Koeppern GmbH and Co KG
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Maschinenfabrik Koeppern GmbH and Co KG
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Publication of EP3972737A1 publication Critical patent/EP3972737A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • 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
    • 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
    • B02C4/02—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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B30B11/006—Control arrangements for roller presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • Such a high-pressure roller press for the comminution of material is also referred to as a high-pressure roller mill.
  • the invention also relates to high-pressure roller presses for compacting or briquetting material.
  • the material is in particular highly abrasive material, e.g. B. ore, cement clinker, slag or ceramic base materials.
  • the roller press can also be used for compacting e.g. B. fertilizers are used.
  • One of the press rollers is preferably designed as a fixed roller and is consequently rotatably mounted in a stationary manner in a press frame. At least one press roller is designed as a loose roller, ie it is connected via force generating means, e.g. B.
  • each press roll has z. B. a rotatingly driven roller core and a bandage attached to the roller core, which forms the (wear-resistant) surface of the roller.
  • the bandage can be designed as a completely circumferential (one-piece) ring or, alternatively, can be formed from several segments attached to the core.
  • press rolls or work rolls can also be used which are not designed with separate bandages, but instead, for example, in one piece or segmented.
  • the press rolls are always equipped with a (wear-resistant) roll surface on the peripheral surface as a working surface.
  • the roller press is equipped with sensors that record various operating data of the roller press.
  • B. can be stored on a computer and / or visualized in a control room of the system. So e.g. B. measured the torque of the press rollers, the hydraulic pressures in the cylinders of the loose roller and the gap width with suitable transducers or sensors, the transducers / sensors z. B. with a control device, z. B. a programmable logic controller (PLC), which in turn is connected to a control room of the system or with a computer arranged in the control room.
  • PLC programmable logic controller
  • a high-pressure roller press for bed crushing in which the drive and movement parameters of at least one roller are measured as control parameters during operation, wherein the ratio of these values to one another is formed and this ratio is always kept essentially constant by reducing or increasing the roller contact pressure force of the rollers.
  • the drive power of a main motor and the peripheral speed of the rolls and the ratio of these used as a controlled variable e.g. B. measured during operation, the drive power of a main motor and the peripheral speed of the rolls and the ratio of these used as a controlled variable.
  • the DE 42 26 182 A1 describes a high-pressure roller press in which the bearing blocks of the floating roller are supported against hydraulic cylinders of a hydropneumatic system, with sensors being provided for measuring the width of the roller gap that occurs on the two roller sides during operation.
  • the sensors are used to measure the distance between the bearing blocks of the two rollers and the signals obtained are fed via lines to the inputs of a monitoring and control unit.
  • the sensors measure the distance between the bearing blocks that occurs during operation of the machine and thus also the width of the nip that occurs during operation on both sides of the roll, either continuously or in a timed manner, and the difference between the two measured values is calculated and compared with a specified tolerance value. If there is an asymmetrical load on the nip, e.g.
  • a control intervention is carried out via the central monitoring and control unit, in this case relating to the feeding of the roller gap, by actuating servomotors for metering flaps set at the feed chute.
  • the monitoring of the operating status of rotating rollers in an industrial plant is z. B. also in the WO 2007/025395 A1 described, namely for mills for grain processing. Vibrations are monitored and a time-varying electrical signal is generated from them, which is subjected to a frequency analysis.
  • the detection of the vibrations can, for. B. by means of an acceleration sensor attached to the bearing of the rotating roller.
  • the analysis can be done with a computer that can also be integrated into a control system of an automated industrial plant, which z. B. can also have monitoring screens for displaying the operating status.
  • the industrial plant can also have several rotating rollers and several systems, the individual systems being networked with one another and with a monitoring centre, e.g. B. wirelessly networked.
  • the WO 2018/036978 A1 describes a self-optimizing, adaptive production processing system with a grinding system that contains a roller press, with at least one sensor for acquiring measured values relating to a state of at least one roller being provided, so that measured values are acquired that characterize a state of the roller.
  • a data receiver of a control unit of the production processing system measured values are received from a data transmitter of the measuring device of at least one roll.
  • the roller operation and the width of the gap between the rollers and/or the parallelism of the rollers are automatically optimized by the control unit or by a control device connected to the control unit based on the measured values received.
  • roller mill with two counter-rotating grinding rollers is known, which is equipped with pin-shaped profile bodies and in which an autogenous wear protection layer is formed.
  • the roller mill has a monitoring device which checks the state of wear of the pin-shaped profile bodies and the state of the autogenous anti-wear layer and also the presence or absence of pin-shaped profile bodies notes.
  • the roller mill can have at least one sensor, which can be arranged such that it can be moved with respect to the grinding roller.
  • the monitoring of the operating status of machines is z. B. also in the WO 2017/197449 A1 described, with a large number of parameters of the machine being measured and thus measured values being made available, with normalized indicator values being generated from these measured values and with these normalized indicator values being used to describe the state of the machine.
  • Corresponding machine modules each equipped with a computer, can be assigned to individual machines. The individual machine modules can be connected to a common system module via a network. In addition, machine modules from different plants can also be connected directly to a central monitoring system, which collects sensor data from a large number of machine modules from several plants, which can also be geographically widely distributed, so that methods of the "Internet of Things" can be used.
  • the US 2005/0049801 A1 deals with the monitoring of machines with moving components, with a locally arranged analysis computer being provided in the area of the machine, with which measured values can be recorded and evaluated. The evaluated data can be transferred to a remote, external computer.
  • the US7182283B1 also describes a system with roller mills with driven grinding tables and the monitoring of such a system.
  • the invention is based on the technical problem in connection with high-pressure roller presses for the crushing, compacting or briquetting of Material are intended to create a method that allows a simple, safe and reliable monitoring of a condition or operating condition of the high-pressure roller press.
  • the analysis computer or edge computer is preferably wired with at least one connecting cable to the measured value recorder(s) arranged on the roller press.
  • the invention is based on the finding that it is advantageous to first store the operating data determined with the measured value recorders as raw data on a powerful edge computer, which is stationed locally in the immediate vicinity of the roller press and is particularly preferably connected to a cable connected to the sensors.
  • this edge computer is not only used to store the operating data as raw data, but also the analysis or evaluation of the raw data is carried out directly on the edge computer using appropriate algorithms that are stored on the edge computer.
  • the raw data can be collected in a database on the analysis computer and made available from there (e.g. for retrieval with a terminal).
  • the raw data is preferably stored redundantly on local storage media, e.g. B. Edge computer hard drives.
  • B. Edge computer hard drives Basically known and available hardware can be used, ie powerful edge computers with large data memories and powerful processors can be used, it being possible to fall back on the fundamentally known principles of "edge computing".
  • a large number of basically known sensors can be used in or on the press to determine and store the operating data, e.g. B.
  • Measured value recorders or sensors for determining the torque of one or both rollers, the hydraulic pressure in or in the cylinders for the adjustment of the floating roller, position sensors and/or displacement sensors for determining the gap width of the roller gap and/or for determining the absolute position the loose roller or the position of the loose roller relative to a stationary press frame, with position sensors z. B. are arranged in the bearing points of the floating roller and / or the fixed roller.
  • temperature sensors, flow sensors, etc. can be used come.
  • the sensors can record analogue measured values, e.g. B.
  • edge computing sensors with a digital output can also be used, which output the signal as a coded pulse train, for example.
  • the roller press characteristics generated on the edge computer by applying the stored algorithms are accessible via a wireless network, e.g. B. via the Internet, can be accessed online or they can be transmitted to end devices via the wireless network (wirelessly).
  • the terminals can be z. These could be external PCs, notebooks, tablets or smartphones, for example.
  • access to the identification data for the purpose of information or visualization on the end device is only possible with appropriate access authorization.
  • the edge computer is connected to a router, e.g. B. industrial router connected via which a connection to a wireless network, z. B. to the Internet, so that online access to the identification data stored in the database on the edge computer is possible.
  • the retrieval or access does not take place directly via the industrial router, but via an external portal that is wireless, e.g. B. is connected to the industrial router via a VPN connection (Virtual Private Network). So e.g. for example, authorized persons can access the portal via suitable end devices with an https connection and access the key data from there (via VPN) via the industrial router.
  • a VPN connection Virtual Private Network
  • the VPN connection e.g. B. the possibility to access the edge computer for remote maintenance.
  • Appropriate access rights are of course assigned for the portal and the end devices, with the traceability of the accesses being registered by means of logs.
  • z. B. directly concrete data of the machine z. B. the nip, the power consumption or the like are currently displayed and visualized.
  • statistical evaluations can be made available as characteristic data, e.g. B. Weekly or monthly reports on the machine status.
  • the characteristics are not simple machine data or evaluated or compressed measurement data that relate directly to a measurement variable of a sensor (e.g. power, gap width or the like), but are particularly preferably via appropriate algorithms special conditions, e.g. B. critical states are determined and visualized or evaluated.
  • the invention is based on the finding that the programmable logic controllers (PLCs) commonly used in practice, which are connected to the sensors, generally cannot provide, process and store the measurement data at high speed or a high sampling rate .
  • the data is preferably forwarded directly by the sensors without an interposed PLC the edge computer or to an evaluation unit connected to the edge computer or integrated into the edge computer, which is suitable for recording and storing the operating data with the high sampling rate.
  • 50 Hz means that 50 readings per second (ie one reading every 20 ms) are made available.
  • the invention has recognized that specific operating states, malfunctioning states or critical states can only be determined, or particularly easily, if the operating data are made available with a correspondingly high sampling rate. This creates extremely large amounts of data. However, since these are stored locally and wired on the edge computer directly on site, these amounts of data can be handled without any problems. Access to this large amount of raw data via a wireless network is not necessary, since the large amounts of data are initially compressed by suitable evaluations on the edge computer, so that the user only has to access the compressed or evaluated data via a wireless network. In principle, it is possible to record only one measured value (or type of measured value) as raw data and to determine one or more characteristic data from it using an analysis algorithm. However, several different operating data are preferably recorded as raw data and evaluated with an analysis algorithm in the sense of a linking evaluation.
  • the invention has recognized that an analysis of the high-frequency recorded operating data surprisingly detects the passage of a foreign body through the nip of the high-pressure roller press, particularly when several (different) measured values are recorded and evaluated as raw data and the Characteristics are determined by linking the signals or raw data using an algorithm.
  • the torque of a press roll or the torques of both press rolls can be used as operating data.
  • the torques of the press rollers are constant within certain limits during operation.
  • the roll gap is also kept essentially constant by the type of adjustment of the loose roll described above.
  • the edge computer can now detect the passage of foreign bodies on the basis of the raw data recorded at high frequency determine that e.g. B. easily foreign body passages can be counted.
  • further operating data are particularly preferably recorded and evaluated, eg the gap width at one or more gap positions and/or the hydraulic pressure of one or more hydraulic cylinders with which the loose roller is set against the fixed roller.
  • the evaluation and, for example, foreign body detection can consequently be significantly improved by a combined or linked evaluation of several measured values (or several types of measured values).
  • the advantages described can be realized equally with different machine types, eg roller mills, briquetting machines and compacting machines.
  • the operating data for the torque is not accessed, but only the result of the evaluation and consequently the number of foreign body passages that are counted or summed up, or a message can be sent to a terminal device if a foreign body passage has been registered.
  • This can e.g. B. carried out a further evaluation of the foreign body passages, so that z. B. repeatedly occurring foreign body passages, irregularities or the like can be analyzed and identified.
  • This can e.g. B. to draw conclusions about the operation of upstream or other system components, e.g. B. an upstream crusher. If it z. If, for example, temporary disruptions occur in an upstream crusher, the loading of the press with undesirably large parts can increase and this would in turn have to be determined by the foreign body detection.
  • the configuration according to the invention enables the processes to be optimized from the point of view of "Industry 4.0" or the “Internet of Things”.
  • the roller press can be expanded into a “talking” machine.
  • Programmed algorithms are used here, with algorithms or methods of artificial intelligence (“AI”) and consequently self-learning or self-optimizing algorithms also being used if necessary.
  • AI artificial intelligence
  • the described high-frequency sampling of the torque is - as described - just an example of the data analysis according to the invention, z. B. to monitor the passage of foreign bodies through the nip.
  • another measured value can also be analyzed and evaluated for this purpose.
  • Such an evaluation can also be used to evaluate short-term fluctuations in the course of the passage of a foreign body.
  • the evaluation result can be further improved by analyzing a first operating parameter in combination with a second operating parameter and drawing conclusions about the respective event using an algorithm.
  • it can be expedient to combine the development of the torque with a measurement of the roll gap.
  • a measurement of the hydraulic pressure can be combined with the roll gap.
  • a further example of the monitoring of a state of the roller press according to the invention is the monitoring of the state of wear of the roller surfaces (eg the bandages) of the high-pressure roller press. Since the usually registered roller gap is adjusted with the help of the hydraulic cylinders in such a way that it is largely the same during operation is kept constant, it is not possible to draw conclusions about the state of wear of the rolls or their roll surfaces (e.g. drums) by recording the roll gap. According to a further proposal of the invention, it is therefore provided that the position of the floating roller is recorded as a function of time with one or more position sensors and the data is stored on the analysis computer.
  • the wear condition of the roll surface can be determined from the measured data and a forecast for a remaining service life of the roll surface can be generated.
  • the position sensors preferably detect the position of the bearing points of the floating roller, which in this embodiment means an absolute measurement of the position of the floating roller or its bearing points, ie a determination of the position relative to a stationary reference system, e.g. B. the press frame. While the gap width of the press nip does not or should not change during operation, since the wear of the roll surface/bandage causes the floating roll to be increasingly adjusted against the fixed roll, the wear on the roll surfaces can be measured very easily using the determine the changing position of the loose roller.
  • the subject matter of the invention is not only the method described, but also a system for crushing, compacting or briquetting material according to claim 10. It is therefore not only the method but also the system that is protected, which uses an edge computer of the described Art is equipped, this edge computer is equipped with appropriate programs for data processing and / or algorithms that are set up to carry out the method described.
  • this high-pressure roller press 1 z. B. is intended for crushing granular material, alternatively for compacting or briquetting of material.
  • the roller press has a press frame 2 and two press rollers 3a, 3b which are rotatably mounted in the press frame 2 and are driven in opposite directions to rotate. A nip is formed between the press rolls, the gap width of which can be changed during operation. Because one of the two press rollers is designed as a stationary roller 3a mounted in the press frame 2 and the other The press roller is designed as a loose roller 3b, this loose roller having power generating means, e.g. B.
  • Each of the two press rollers 3a, 3b can be designed as a solid roller or segmented roller or preferably have a driven roller core on the one hand and a bandage (e.g. ring bandage) arranged on the roller core on the other hand, which B. is equipped with a wear-resistant surface. Details are not shown in the figures.
  • Such a roller press 1 can be connected in the usual way to a programmable logic controller or PLC 5, which in turn can be connected to a higher-level system controller or a control room 6.
  • the operation of the roller press 1 can be controlled and monitored in a known manner via the control room 6 .
  • the PLC 5 can be connected on the one hand to the drives of the roller press and on the other hand to various measured-value recorders.
  • a special computer is provided as an alternative or in addition to the programmable logic controller 5, namely an edge computer as an analysis computer 7, which is wired via one or more connecting cables 8 to measured value sensors 9 of the roller press.
  • This edge computer or analysis computer 7 is stationed locally in the immediate vicinity of the roller press.
  • the operating data registered with the measured value recorders 9 are stored as raw data on this analysis computer 7 .
  • the measured value recorders 9 can be equipped with (additional) measuring devices or measuring cards 10, with which the analog measurement data are converted into digital operating data R.
  • Optical connecting cables for example optical waveguides, can preferably be used to connect the measuring card 10 to the analysis computer 7 for particularly fast data transmission.
  • the analysis computer 7 is provided as an edge computer with large data memories 11, processors 12 and specially designed algorithms 13 for the analysis and evaluation of the operating data.
  • a plurality of storage media 11 for redundant data storage are preferably provided in the analysis computer 7 .
  • the raw data R are stored on the analysis computer 7 and evaluated with the analysis algorithms 13 and characteristic data K of the roller press 1 are thus generated, which are also stored on the analysis computer.
  • these characteristic data K are transmitted from the analysis computer 7 via a wireless network 14 to one or more terminals 15, e.g. B. PCs, tablets, smartphones or the like, ie the terminal devices 15 can be used to access the characteristic data K.
  • the characteristics K in the analysis computer 7 in z. B. a database are stored as compressed data and are provided in the database for online access via PC, smartphone or the like, namely z. B. for corresponding system status displays.
  • the operating data R can be recorded in a conventional manner using known measured value sensors 9 that are optionally provided in the area of the roller press anyway, namely, for example, B. the torque of a press roller or both press rollers, the hydraulic pressure of the hydraulic cylinder for the loading of the floating roller, position sensors for determining the variable nip, position sensors for the Determination of the absolute position of the floating roller or the position of the floating roller relative to the stationary press frame, load cells, temperature sensors, flow rate sensors or the like.
  • the respective state of the roller press 1 or values of the sensors 9 mentioned are displayed in a condensed form, so that a current machine status can be visualized.
  • statistical evaluations can be queried on terminal 15, which, however, are not generated on terminal 15 but on analysis computer 7, e.g. B. individual weekly reports, monthly reports or the like.
  • analysis computer 7 e.g. B. individual weekly reports, monthly reports or the like.
  • the method according to the invention can be used to monitor disruptive states, unusual states or the like.
  • the operating data is raw data R with a high sampling rate of more than 100 Hz, e.g. B. recorded more than 200 Hz and stored on the analysis computer 7.
  • the analysis algorithms 13 already mentioned generate the desired characteristic data or characteristic values K from the very large amounts of data. B. can be accessed via the Internet.
  • the computer 7 is connected to an industrial router 16 for online access, which in a preferred variant is connected to a portal 18 via a VPN network or a VPN connection 17 .
  • the terminals 15 consequently do not access the industrial router 16 directly for querying the evaluated characteristics, but access the portal 18, e.g. B. via secure or encrypted https connections 19.
  • an additional computer or PC 21 can optionally be connected to the portal 18 via an additional VPN connection 20, so that not only data is queried via this PC in the sense of remote maintenance, but also to the analysis computer 7 or to the Roller press can be accessed.
  • field data F and consequently data from other components of the system can be detected, z. B. Operating data of a crusher.
  • data, commands or the like can also be transmitted from the analysis computer 7 to the roller press 1 or other components of the system. So e.g. B. the evaluated characteristic data can be used for controlling or regulating the press or other machines.
  • the torques and/or the gap widths of the two press rollers 3a, 3b are recorded and evaluated as operating data.
  • the torques M of the two rolls on the one hand and the gap widths W (at two different locations in the press nip) on the other hand are plotted (as raw data) as a function of time t, specifically in the case of a foreign body passing through the roll nip. This was done in the manner already described, a high-frequency sampling and storage with z. B. 200 readings per second. In the course of a When a foreign body passes through the roller gap, there is a brief increase in the torque M and the gap width W.
  • Another possible application concerns wear monitoring or maintenance forecasts, e.g. B. monitoring the wear of the roller press drums.
  • B. monitors the absolute position of the floating roller 3b with one or more position sensors.
  • the position of the loose roller relative to a stationary press frame 2 is referred to as the position of the loose roller 3b.
  • Position sensors in the area of the bearing points be arranged the loose roller. In 3 the position of a bearing point is shown at the top left as a function of time.
  • the absolute position of the floating roller 3b is detected with one or more position sensors.
  • the position of the loose roller relative to a stationary press frame 2 is referred to as the position of the loose roller 3b.
  • position sensors 9 can be arranged in the area of the bearing points of the loose roller 3b.
  • the position of a bearing point is shown as a function of time t at the top left. It can be seen that these raw data R are first recorded at high frequency and stored on the analysis computer 7 . From this, this generates the characteristic data K, which are plotted in the graphic below. It is a measure of the wear V of the roll surface, eg the bandage, and it can be seen that this measure increases with increasing service life, since the work roll diameter, eg the bandage diameter, decreases due to the wear V. When a certain upper limit value is reached, the rollers or the roller surfaces, for example the bandage, are exchanged. This is recognizable by the abrupt drop at the points shown. While the raw data R actually relate to the position data, the characteristic data K are data that represent the state of wear V of the roll surfaces. In this way, maintenance predictions can be made.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Press Drives And Press Lines (AREA)
  • Disintegrating Or Milling (AREA)
  • Forging (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Claims (10)

  1. Procédé, destiné à superviser une presse à rouleaux haute pression (1) au cours du broyage, du compactage ou du briquetage de matière,
    la presse à rouleaux (1) comportant deux rouleaux presseurs (3a, 3b) entraînés en rotation, entre lesquels est créé un interstice entre rouleaux, dont la largeur d'interstice est variable en cours de fonctionnement,
    en cours de fonctionnement, des données opérationnelles de la presse à rouleaux (1) étant déterminées par un ou plusieurs transducteurs de valeurs de mesure (9) et mémorisées sur un ordinateur,
    caractérisé
    en ce que les données opérationnelles sont mémorisées sous la forme de données brutes (R) sur un ordinateur Edge, faisant office d'ordinateur d'analyse (7), placé de manière localisée dans la zone de la presse à rouleaux (1) et connecté avec les transducteurs de valeurs de mesure (9),
    en ce que les données brutes (R) sont évaluées dans l'ordinateur d'analyse (7) avec des algorithmes d'analyse et de ce fait, des données caractéristiques (K) de la presse à rouleaux (1) sont générées et lesdites données caractéristiques (K) sont mémorisées dans l'ordinateur d'analyse (7),
    les données caractéristiques (K) étant transmises par l'ordinateur d'analyse (7) via un réseau (14) sans fil à au moins un terminal (15) et étant affichées sur le terminal (15).
  2. Procédé selon la revendication 1, caractérisé en ce que l'ordinateur d'analyse (7) ou l'ordinateur Edge sont connectées par câble, à l'aide d'au moins un câble de connexion (8) avec le ou avec les transducteurs de valeurs de mesure (9), placés sur la presse à rouleaux (1), de préférence, des fibres optiques étant utilisées.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les données opérationnelles sont enregistrées sous la forme de données brutes (R), avec une fréquence de balayage élevée de plus de 50 Hz, par exemple de plus de 100 Hz, de préférence d'au moins 200 Hz, et sont mémorisées sur l'ordinateur d'analyse (7) .
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'en tant que données opérationnelles, le couple de rotation d'un rouleau presseur (3a, 3b) ou des deux rouleaux presseurs (3a, 3b) sont relevés et mémorisés.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'en tant que données opérationnelles, la pression hydraulique sur les générateurs de force d'un rouleau presseur (3a, 3b) est relevée et mémorisée et / ou en ce qu'en tant que données opérationnelles, la largeur d'interstice de l'interstice entre rouleaux et / ou la position absolue d'un rouleau presseur (3a, 3b) est / sont relevée(s) et mémorisée(s).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'en tant que données opérationnelles, les valeurs de mesure de différents transducteurs de valeurs de mesure (9) sont relevées et mémorisées, les données caractéristiques (K) étant évaluées à l'aide des algorithmes d'analyse, en utilisant différentes données opérationnelles de plusieurs transducteurs de valeurs de mesure (9) et mémorisées.
  7. Procédé selon l'une quelconque des revendications 1 à 6, destiné à superviser un passage d'un corps étranger à travers l'interstice entre rouleaux, caractérisé en ce que des données opérationnelles sont relevées, qui pendant le passage d'un corps étranger à travers l'interstice entre rouleaux varient en fonction du temps, par exemple un couple de rotation et / ou une largeur d'interstice et / ou une pression et en ce qu'à l'aide d'un algorithme d'analyse, des passages de corps étrangers sont déterminés à partie des données opérationnelles.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'à l'aide du terminal (15), par exemple d'un PC, d'un Notebook, d'une tablette, d'un Smartphone ou analogues, il est accédé à un routeur (16) connecté avec l'ordinateur d'analyse (7), de préférence à un portail connecté avec le routeur (16) via une connexion VPN (17).
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les données caractéristiques (K) sont utilisées pour une commande ou une régulation de la presse à rouleaux (1) ou d'une autre machine au sein d'une ligne industrielle, par exemple d'une ligne de broyage, d'une ligne de compactage, d'une ligne de briquetage dans laquelle est intégrée la presse à rouleaux (1)
  10. Ligne de broyage, de compactage, de briquetage de matières, à l'aide d'un procédé selon l'une quelconque des revendications 1 à 9, comportant au moins
    une presse à rouleaux (1), qui comporte deux rouleaux presseurs (3a, 3b) entraînés en rotation, entre lesquels est créé un interstice entre rouleaux dont la largeur d'interstice est variable en cours de fonctionnement,
    un ou plusieurs transducteurs de valeurs de mesure (9), à l'aide desquels des données opérationnelles de la presse à rouleaux (1) sont déterminées,
    un ordinateur Edge, faisant office d'ordinateur d'analyse (7), situé localement dans la zone de la presse à rouleaux (1) et connecté avec la presse à rouleaux (1) ou avec les transducteurs de valeurs de mesure (9),
    les données opérationnelles étant susceptibles d'être mémorisées en tant que données brutes (R) sur l'ordinateur Edge et les données brutes (R) étant utilisables sur l'ordinateur d'analyse (7) à l'aide d'algorithmes d'analyse et de ce fait, des données caractéristiques (K) de la presse à rouleaux (1) étant susceptibles d'être générées et lesdites données caractéristiques (K) étant susceptibles d'être mémorisées dans l'ordinateur d'analyse (7), les données caractéristiques (K) étant susceptibles d'être transmises par l'ordinateur d'analyse (7) via un réseau sans fil (14) à au moins un terminal (15) et étant susceptibles d'être affichées sur le terminal.
EP21730515.0A 2020-06-04 2021-05-28 Procédé de supervision d'un broyeur de rouleaux à haute pression Active EP3972737B1 (fr)

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DE102020114815.1A DE102020114815A1 (de) 2020-06-04 2020-06-04 Verfahren zur Überwachung einer Hochdruck-Walzenpresse
PCT/EP2021/064345 WO2021244966A1 (fr) 2020-06-04 2021-05-28 Procédé de surveillance d'une presse à rouleaux haure pression

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EP3972737B1 true EP3972737B1 (fr) 2023-05-31

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EP (1) EP3972737B1 (fr)
KR (1) KR20230021079A (fr)
DE (1) DE102020114815A1 (fr)
DK (1) DK3972737T3 (fr)
FI (1) FI3972737T3 (fr)
MX (1) MX2022015281A (fr)
WO (1) WO2021244966A1 (fr)

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EP2724779A1 (fr) 2012-10-29 2014-04-30 Metso Minerals Industries, Inc. Dispositif de surveillance pour un rouleau d'un broyeur à rouleaux
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WO2018036978A1 (fr) 2016-08-22 2018-03-01 Bühler AG Dispositif de surveillance et de commande pour auto-optimisation de l'emprise de mouture d'un système de cylindres et procédé correspondant
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DK3972737T3 (da) 2023-08-07
DE102020114815A1 (de) 2021-12-09
US20230158766A1 (en) 2023-05-25
WO2021244966A1 (fr) 2021-12-09
MX2022015281A (es) 2023-01-19
FI3972737T3 (fi) 2023-08-21
EP3972737A1 (fr) 2022-03-30
KR20230021079A (ko) 2023-02-13

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