EP3818318A1 - Procédé et dispositif de fonctionnement d'une installation de production - Google Patents

Procédé et dispositif de fonctionnement d'une installation de production

Info

Publication number
EP3818318A1
EP3818318A1 EP19734806.3A EP19734806A EP3818318A1 EP 3818318 A1 EP3818318 A1 EP 3818318A1 EP 19734806 A EP19734806 A EP 19734806A EP 3818318 A1 EP3818318 A1 EP 3818318A1
Authority
EP
European Patent Office
Prior art keywords
production
data
forecast
energy
production process
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.)
Pending
Application number
EP19734806.3A
Other languages
German (de)
English (en)
Inventor
Thorsten NOGLI
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.)
Thyssenkrupp Polysius GmbH
ThyssenKrupp AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions 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 ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3818318A1 publication Critical patent/EP3818318A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
    • F27D2019/0037—Quantity of electric current

Definitions

  • the invention relates to a method for operating a production system, according to the preamble of claim 1.
  • the present invention also relates to a computer program, a machine-readable data carrier for storing the computer program and a device by means of which the method according to the invention can be carried out.
  • the raw materials for cement production are obtained in a quarry. There, the material is loosened either by blasting or with heavy machinery and then transported to a crusher using wheel shovel loaders and heavy goods vehicles, where it is crushed together with additives to crushed stone. This is then brought to a so-called "premix warehouse" of the cement plant via conveyor belts.
  • the material is ground together with other additives in a raw mill to raw meal and stored in a raw meal silo and homogenized.
  • the raw meal is then burned in a rotary kiln at around 1,450 ° C to cement clinker, which is then cooled and stored again.
  • the cement clinker with additives is ground in the cement mill to cement, which is then stored in cement silos.
  • the finished cement stored in the silos is finally packaged and distributed or shipped.
  • the crusher and the mills are electrically driven components that can be operated relatively flexibly. This is made possible by the fact that the material temporarily stored after the mills in the premix warehouse and in the silos forms a buffer. This buffer enables the production operation or process to be maintained even if the mills or the crusher e.g. be parked for several hours. The inventories thus available can thus be used if no regenerative energy is available. The premix warehouse and the silos are only refilled when regenerative energy is available again.
  • the range of regenerative energy depends, among other things, on the presence of e.g. Wind or sun.
  • the expected amount of wind energy can be determined by means of a wind forecast and the characteristic curve of a wind farm.
  • the situation is similar with solar energy.
  • WHR Wood heat recovery
  • coal-fired power plants etc., if you want to consider which is the cheapest energy alternative at a time t. This can be controlled by an energy management system.
  • the invention is based on the idea of consuming electrical energy mainly when sufficient regenerative energy is available.
  • flexibly operable or controllable and energy-intensive processes are adapted to the supply of fluctuating or relatively strongly variable energy offers, in particular of renewable or regenerative energy and their energy sales.
  • As much regenerative energy as possible can be used by means of the invention. This not only saves costs, it also reduces C0 2 emissions.
  • the term fluctuating energy offers also includes cost optimization from price fluctuations of conventionally generated electricity.
  • the electrical See supply of the production system by means of at least one temporally fluctuating, for example regenerative energy source, that an electrical supply sufficient for the production process according to one of the at least two process stages is checked, that with an adequate electrical supply the production process is carried out according to one of the at least two process stages , and that in the case of an electrical supply of the production process which is insufficient for the production process according to the one process step, an intermediate product produced in the production process according to the one process step is temporarily stored.
  • forecast data of the regenerative energy source are taken into account.
  • Such forecast data can e.g. can be called up or recorded online by corresponding energy providers (e.g. so-called “green electricity providers”) or by corresponding energy exchanges.
  • weather data can also be called up or recorded online.
  • the forecast data of the regenerative energy source and / or the forecast weather data can be compared with an empirically predeterminable threshold value and, if the respective threshold value is exceeded, the production process can be continued according to the respective subsequent process stage.
  • the additional sales data taken into account can be compared with existing production planning data and depending on the comparison result of the pro- production process is carried out or not carried out in accordance with the subsequent process stage.
  • a process control e.g. a cement production plant is connected in terms of control technology.
  • the device proposed according to the invention is in particular set up, a production facility in which at least one production process which consumes electrical energy intensively is carried out to produce a product and which comprises at least two process stages, intermediate products produced in the respective process stage being stored in at least one intermediate store can control by means of the proposed method.
  • the proposed device can have a communication module, by means of which the forecast data retrieved from an external data source are received, a calculation module or data memory for providing threshold values required for the comparison for the respective forecast data, and a comparator, by means of which the received forecast data and the threshold values provided by the calculation module or data memory are compared in order to supply the results of the comparison to a process control which controls the process flow of the production plant.
  • the proposed device can also include an energy management module, which already pre-processed data from a forecast module for recording or calculating the energy availability and the energy price, which regularly calls up or records the forecast or weather data mentioned, and from one to be expected Product sales calculating sales forecast module.
  • the sales forecast module receives the required current production data from a conventional production planning system, the production planning being based on, for example, externally available sales data and / or customer-related maintenance data.
  • the energy management module manages it generated data to a conventional process control system, which is connected to the process control system, for example a cement production plant
  • the method and the device according to the invention can be implemented by combining an energy management system with a production planning system.
  • the production planning system can advantageously represent an automatic, autonomous system.
  • the facility can thus combine the tasks of the energy management system with those of the production planning system.
  • the facility receives information about when and how much regenerative energy is available and when and how much material has to be available in the silos. Depending on the situation, the system then calculates which parts of the plant are started or stopped in order to produce sufficient cement with the lowest possible energy costs to meet the demands of the market.
  • the facility can take into account not only the various energy sources, but also the exact power consumption of the individual consumers and their energy consumption when starting up or shutting down the production plant.
  • the device is preferably superordinate to the actual control system and can start the various parts of the system automatically, provided they are available.
  • the facility can also take into account maintenance work, necessary downtimes and wear.
  • the invention can be used in particular in a production plant in which electrical energy-intensive production processes for producing a product are carried out and in which the intermediate products produced can be stored in an intermediate store.
  • the computer program according to the invention is set up to carry out each step of the method, in particular if it runs on a computing device or a control device. It enables the method according to the invention to be implemented on an electronic control unit without having to make structural changes to it.
  • the machine-readable data carrier is provided, on which the computer program according to the invention is stored.
  • the device according to the invention is obtained, which is set up to include one here to operate the production plant concerned by means of the method according to the invention or to control the corresponding production operation.
  • FIG. 1 shows an exemplary embodiment of the method according to the invention on the basis of a flow chart.
  • FIG. 2 shows a first exemplary embodiment of the device according to the invention using a block diagram.
  • FIG. 3 shows a second exemplary embodiment of the device according to the invention using a block diagram.
  • CEM cross-energy management
  • the method and the installation are described below using the example of a cement production plant, but can also be used in other production plants, such as production plants for the production of chemical substances such as urea, fertilizers, in steel and coke production, ore extraction or the like, are used accordingly.
  • the production of cement is an energy-intensive process that requires a particularly large amount of electrical energy.
  • the electrical electricity purchase costs are a major competitive factor for the plant operators, which is why the cement industry is suitable as a typical CEM application.
  • raw material from a quarry is first crushed and pre-ground in a grinder. Then it comes into the heart of the production plant, namely in a rotating furnace, in which it is burned to cement clinker. The clinker thus fired is then finely ground in a second grinder until a predetermined grain size is achieved.
  • the process is based on the knowledge that the two grinders represent electrically driven components which can be operated relatively flexibly.
  • the first grinder can be switched on when there is a lot of electricity from renewable sources available at low cost.
  • the ground raw material is then temporarily stored in a silo before it gets into the furnace. If, on the other hand, inexpensive electrical supply current is scarce, the clinker is first stored in the silo before the second grinding process.
  • the second grinding process is only started when inexpensive electrical power is sufficiently available again.
  • a cement production plant affected here preferably comprises a clinker silo, a redox flow battery with an electrical storage capacity for providing the entire plant output at least over an hour, and a wind power plant, which enables electrically optimizable plant control.
  • the electrical supply of the production system is carried out by means of at least one fluctuating, regenerative energy source. It is assumed in the present case that the currently running production process is in an nth production stage of at least two production stages 100. In this case, it is checked 105 for the present nth production stage whether the subsequent n + 1th Production stage of the entire production process an adequate electrical supply is guaranteed. If test 105 reveals that there is sufficient electrical supply for the n + 1 th production stage, then the production process is continued 110 according to the n + 1 th process stage. Otherwise, one in the production process according to the n th Process stage manufactured intermediate product temporarily 115. Then jump back to test step 105.
  • forecast data from the regenerative energy source can be taken into account 120.
  • correspondingly forecast weather data, in particular wind forecast data, from regenerative energy generated by wind power can be taken into account 120.
  • weather data in particular sunshine duration values
  • weather data in particular sunshine duration values
  • regenerative energy generated by hydropower alternatively or additionally appropriately forecast weather data can be taken into account 120.
  • the forecast data of the generative energy source and / or the forecast weather data can be compared with an empirically predeterminable threshold value, so that the production process is only carried out in accordance with the n + 1th process level when the respective threshold value is exceeded.
  • sales data can be checked for a degree of urgent need 125, so that in a urgent sales case, the production process is carried out according to the n + 1th process level even if the electrical supply is insufficient.
  • the sales data can be compared with specifiable or existing production planning data and, depending on the comparison result, the production process is carried out or not carried out according to the n + 1 th process level.
  • the method can also be used to check whether it makes sense to start up the grinder if there is a surplus of electricity in the network, even if the material has to be temporarily stored afterwards, or whether it is possible to switch off an aggregate if there is a lack of electricity and instead to use the supplies.
  • the cement production plant or the cement plant would thus be a supplier of balancing energy, with which fluctuations in the electricity network can be compensated.
  • the network operator would compensate the cement manufacturer for this system service (secondary control power).
  • the energy availability and the energy price are calculated, the forecast or weather data mentioned being called up or recorded regularly.
  • An expected product sales volume can be calculated using current production data from a conventional production planning system retrieved or provided.
  • Production planning can, for example, be based on externally available sales data and / or possibly customer-related maintenance data.
  • the data generated in this way can finally be fed to a process control system which is connected in terms of control technology to a process control, for example a cement production plant.
  • the described method can be implemented in the form of a control program for an electronic control unit for operating or controlling a production system concerned here, or in the form of one or more corresponding electronic control units (ECUs).
  • ECUs electronice control units
  • the device 200 shown in FIG. 2 comprises a communication module 205, by means of which the forecast data retrieved from an external data source, in the present exemplary embodiment a corresponding cloud service 207, is received via a conventional wireless and / or wired data connection 210.
  • the threshold values required for the comparison for the respective forecast data 210 are provided by means of a calculation module or data memory 215.
  • the forecast data 210 received by means of the communication module 205 and the threshold values provided by the module 215 are compared with one another by means of a comparator 220 and the results of the comparison are finally fed to a process controller 225, which controls the process sequence described in FIG. 1.
  • the device shown in FIG. 3, highlighted by a broken line 300 comprises an energy management module 305, which already has preprocessed data from a forecast module 310 for recording or calculating the energy availability and the energy price, which contains the aforementioned forecast data 315, weather data 320 and / or regularly retrieves or records forecast data from conventional electricity providers 323 and receives them from a sales forecast module 325 that calculates the expected product sales.
  • the sales forecast module 325 receives the required current production data from a conventional production planning system 330, the production planning being based on e.g. externally available sales data 335 and / or possibly customer-related maintenance data 340.
  • the energy management module 305 forwards the data generated by it to a customary process control system 345, which can be connected to a process control 350, for example a cement production system 355, for control purposes.
  • the device 300 can further comprise, as indicated by the dashed line, an optional optimization module 360 for optimizing the respective production system, which stores the respective process parameters during operation and evaluates them.
  • this can be, for example, the hydraulic pressure, the amount of fresh material to the mill, the amount of water injected, for example, for cooling purposes or in the production of cement, and the electricity consumption.
  • This data is further collected and evaluated so that the optimal operating point can also be continuously checked. Because this operating point can change due to wear and possibly changing raw materials or changing demands on the product, for example, the fineness of the product in mills.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Feedback Control In General (AREA)

Abstract

La présente invention concerne un procédé et un dispositif destinés à faire fonctionner une installation de production, dans laquelle au moins un processus de production à consommation intensive d'énergie électrique destiné à fabriquer un produit est mis en œuvre, lequel processus de production comprend au moins deux étapes de processus, à l'étape de processus respective (100), des produits intermédiaires générés pouvant être stockés dans au moins un entrepôt intermédiaire. Selon l'invention, en particulier, l'alimentation électrique de l'installation de production est réalisée au moyen d'au moins une source d'énergie fluctuant dans le temps, par exemple renouvelable ; une alimentation électrique suffisante pour le processus de production selon l'une desdites étapes de processus (105) est contrôlée; si l'alimentation électrique est suffisante, le processus de production est mis en œuvre selon l'une desdites étapes de processus (110) ; et, si l'alimentation électrique n'est pas suffisante pour le processus de production selon ladite étape de processus, un produit intermédiaire fabriqué dans le processus de production selon ladite étape de processus est stocké provisoirement (115).
EP19734806.3A 2018-07-05 2019-07-01 Procédé et dispositif de fonctionnement d'une installation de production Pending EP3818318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018211104.9A DE102018211104A1 (de) 2018-07-05 2018-07-05 Verfahren und Einrichtung zum Betrieb einer Produktionsanlage
PCT/EP2019/067597 WO2020007796A1 (fr) 2018-07-05 2019-07-01 Procédé et dispositif de fonctionnement d'une installation de production

Publications (1)

Publication Number Publication Date
EP3818318A1 true EP3818318A1 (fr) 2021-05-12

Family

ID=67137958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19734806.3A Pending EP3818318A1 (fr) 2018-07-05 2019-07-01 Procédé et dispositif de fonctionnement d'une installation de production

Country Status (3)

Country Link
EP (1) EP3818318A1 (fr)
DE (1) DE102018211104A1 (fr)
WO (1) WO2020007796A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000350B4 (de) * 2010-02-10 2023-10-05 Adkor Gmbh Energieversorgungssystem mit regenerativer Stromquelle und Verfahren zum Betrieb eines Energieversorgungssystems
DE102010048409A1 (de) * 2010-10-15 2012-04-19 Abb Ag Verfahren und Vorrichtung zur Optimierung eines Produktionsprozesses
DE102011081547A1 (de) * 2011-08-25 2013-02-28 Siemens Aktiengesellschaft Einstellung einer industriellen Anlage
EP2660547A1 (fr) * 2012-05-03 2013-11-06 Siemens Aktiengesellschaft Installation métallurgique
DE102012109284A1 (de) * 2012-09-14 2014-03-20 Voestalpine Stahl Gmbh Verfahren zum Erzeugen von Stahl und Verfahren zum Speichern diskontinuierlich anfallender Energie
US20150259760A1 (en) * 2012-09-14 2015-09-17 Voestalpine Stahl Gmbh Method for producing steel
DE102013113942A1 (de) * 2013-12-12 2015-06-18 Thyssenkrupp Ag Verfahren zur Reduzierung von CO2-Emissionen beim Betrieb eines Hüttenwerks

Also Published As

Publication number Publication date
DE102018211104A1 (de) 2020-01-09
WO2020007796A1 (fr) 2020-01-09

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