EP3254042B1 - Méthode pour l'opération automatique d'une centrale de séchage avec une chambre remplie au moins d'un volume d'air - Google Patents
Méthode pour l'opération automatique d'une centrale de séchage avec une chambre remplie au moins d'un volume d'air Download PDFInfo
- Publication number
- EP3254042B1 EP3254042B1 EP16702927.1A EP16702927A EP3254042B1 EP 3254042 B1 EP3254042 B1 EP 3254042B1 EP 16702927 A EP16702927 A EP 16702927A EP 3254042 B1 EP3254042 B1 EP 3254042B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drying
- drying chamber
- air volume
- control unit
- value
- 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.)
- Not-in-force
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
Definitions
- the invention relates to a method for the automated operation of a drying plant with a drying space filled at least with an air volume in accordance with the preamble of claim 1.
- DE 25 34 479 A1 is a temperature control device in a drying machine for running Garnbannen known, wherein an elongated in the direction of the yarn path drying chamber, which is bounded by a box-shaped frame, is provided. A connection of an air suction line lying above in the direction of flow is connected at one end to the drying chamber. An upstream connection of a suction device to draw air out of the system is connected to the air suction line. A downstream one of a circulation line is connected to the suction line and the underlying terminal is connected to the opposite end of the drying chamber.
- the invention has for its object to provide a method for automated operation of a drying plant with a filled at least with an air volume drying space, in which a consumption of particular electrical energy is minimized taking into account regulations of explosion protection.
- the object is achieved by the features of claim 1.
- the achievable with the present invention consist in particular in that the automated operation of the drying plant whose consumption of electrical energy in particular is minimized taking into account regulations of explosion protection.
- the gas consumption used for drying the material to be dried is minimized.
- the proposed solution leads to a drying system after a cold start and / or after an interruption in the drying process completely automated comparatively fast, d. H. can be put back into production in a shorter time than in actions performed by an operator, which improves the economics of such a drying plant.
- the single figure shows an example schematically and simplifies a drying system 01, as z. B. in industrial process technology for drying a drying material 03 in particular with the aid of air, flue gas or an inert gas such. As nitrogen or a noble gas is used.
- This drying unit 01 points at least one drying space 02, wherein said drying space 02, which is surrounded by a few openings and is at least filled with a certain amount of air, ie the so-called air volume.
- a drying material 03 loaded with a solvent is fed to this drying space 02 of the drying installation 01 in a preferably continuous movement.
- drying material 03 preferably cans of a metallic material are used, for.
- the drying material 03 is preferably conveyed into the drying room 02 by means of a conveyor 02 passing through the drying space 02 in a transport direction T, and then conveyed out of the drying room 02 again after the drying process, wherein the conveyor 04 for example.
- B. is designed as a conveyor belt.
- the cans 03 forming the cans are arranged on or on this conveyor belt, in particular strung together. These cans are z. B. treated inside and / or outside with a solvent-containing paint.
- the drying plant 01 is z. B. formed as a belt dryer.
- the drying material 03 is dried during its passage through the drying room 02 in direct contact with a introduced into the drying room 02 by a heated to a process temperature flowing gas, wherein a z. B. arranged below the conveyor 04 heating element 06 of this gas, this drying material 03 drying gas z. B. is hot air and is heated directly or indirectly by the heating element 06.
- the process temperature is the temperature at which the drying material 03 dries optimally, ie also as quickly as possible, without being damaged by the supplied heat.
- the heating element 06 is z. B. as a burner, in particular as a gas burner. For the heating element 06 to be heated gas and / or for a drying material 03 surrounding circulating air is a process temperature of z. B.
- said gas from an initial temperature of z. B. 20 ° C to 25 ° C is heated to the process temperature.
- the drying room 02 is in connection with the heating element 06 z. B. a recirculation system, in which at least one arranged in the drying room 02 recirculation fan 09 circulating air in the drying room 02 located.
- the drying material 03 at least partially discharges its solvent into the drying space 02, ie, for example, to the circulating air.
- the drying space 02 has at least one exhaust duct 07 with at least one exhaust fan 08, the at least one exhaust fan 08 in the drying room 02 the Drying material 03 flowing around gas together with the discharged from the drying material 03 in the drying room 02 solvent and the volume of air originally located in the drying room 02 as a volume of exhaust air from this drying space 02, wherein the term "exhaust volume” that amount or total amount of originally in the drying room 02 existing air and / or in the drying room 02 optionally registered gas and / or vaporized in the drying room 02 solvent referred to, which is currently in the drying room 02 of the drying unit 01 and to avoid a danger the at least one exhaust duct 07 is to be conveyed out of the drying room 02.
- At least the air volume conveyed out of the drying space 02 is replaced by a supply air volume supplied to the drying space 02 via a supply air duct 11, wherein, for the supply air z. B. in particular oxygen-rich fresh air z. B. from a surrounding area of the drying plant 01 or from an outdoor area.
- the supply of the supply air volume in the drying room 02 is z. B. by means of a formed in the drying space 02 negative pressure, this vacuum z. B. by a circulation of the air space located in the drying chamber 02 z. B. by means of at least one in Drying 02 arranged recirculation fan 09 takes place.
- a preferably electronic, in particular programmable control unit 12 is provided, this control unit 12, in particular for the production of a stable drying process, the gas heating element 06 at least in terms of the process temperature and / or the at least one exhaust fan 08 at least in terms of the exhaust air volume to be conveyed out to the drying space 02 and / or the at least one recirculating air fan 09 in each case regulates the air circulation caused by it in the drying space 02.
- the process temperature of the gas heated by the heating element 06 and / or the exhaust air volume conveyed out of the drying space 02 by the at least one exhaust fan 08 and / or the at least one circulating air fan 09 are respectively monitored by sensors connected to the control unit 12.
- the control unit 12 sets at least the exhaust air volume to be conveyed out of the drying space 02 by the at least one exhaust fan 08 to a first value suitable for the intended drying process, wherein the control unit 12 z. B. from a production planning system 14 receives corresponding information about the intended drying process, in particular also on whether the drying room 02 to be supplied drying material 03 in a drying plant 01 upstream production plant is currently in production or in a drying plant 01 upstream processing plant is currently in progress or not.
- the control unit 12 After reaching this first value for the exhaust air volume to be conveyed out of the drying space 02 by the at least one exhaust fan 08, the control unit 12 sets the exhaust air volume to be pumped out of the drying space 02 by the at least one exhaust fan 08 to a higher second compared to its first value Value, this second value being for the exhaust air volume to be conveyed out of the drying space 02 by the at least one exhaust fan 08 from the control unit 12, for B. is set at least five times as high as its first value. The rinsing time is in the control unit 12 z. B.
- the volume exchange takes place z. B. with about 1000 to 1500 m 3 / h.
- the rinsing time is z. B. 5 to 10 minutes.
- the control unit 12 ignites the heating element 06 heating the gas.
- the control unit 12 starts, for example. B. by an operation of a conveyor 04 driving drive 13 the passage of the material to be dried 03 through the drying room 02 and thus the drying process, once the heated gas from the heating element 06 has reached its process temperature.
- the control unit 12 checks in a further operating situation of this drying installation 01, namely at an interruption in a feed of the drying material 03 to the drying room 02, wherein this interruption z. B. may also be the result of a production change, within one of a scheduled cycle time of the drying material 03 by the drying space 02 dependent time interval, whether the supply of the drying material 03 to the drying room 02 is continued, this time interval begins to run at the time in which the control unit 12 detects the interruption in the supply of the drying material 03 to the drying room 02.
- the control unit 12 lowers at an interruption in the supply of the drying material 03 to the drying room 02 within a time interval dependent on the scheduled cycle time of the drying material 03 through the drying space 02 at least the exhaust air volume conveyed by the at least one exhaust fan 08 out of the drying room 02 of one for the current Drying process suitable first value to a lower compared to its first value second value, if the supply of the material to be dried remains interrupted until the expiration of the time interval in which the control unit checks whether the supply of the material to be dried is continued to the drying room.
- control unit 12 preferably lowers the process temperature controlled by it, which is heated by the gas heating element 06 in the drying space 02, from a first value suitable for the current drying process to a second value which is lower than its first value, the control unit 12 for the heating element 06 to be heated gas as its first value a process temperature z. B. from about 180 ° C to 200 ° C sets. Also ends the control unit 12 with the achievement of the second value of the process temperature, in particular the supply of the drying material 03 to the drying room 02 by the control unit 12 z. B. the conveyor 04 driving drive 13 is actuated.
- control unit 12 raises both the regulated by the heating element 06 heating the heating element 06 in the drying room 02 process temperature of the relatively lower second value the first value suitable for the drying process to be continued, and at least the exhaust air volume to be conveyed out of the drying space 02 by the at least one exhaust fan 08 from the second value back to that for the first value of the process temperature to be continued to appropriate drying value appropriate first value.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Claims (8)
- Procédé pour le fonctionnement automatisé d'une installation de séchage (01) comprenant une chambre de séchage (02) remplie au moins d'un volume d'air,a) selon lequel une unité de commande (12), lors d'un démarrage à froid de l'installation de séchage (01), règle un volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par au moins un ventilateur d'air vicié (08) sur une première valeur adaptée à un processus de séchage prévu,b) selon lequel l'unité de commande (12), une fois cette première valeur atteinte, règle le volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08) pendant un temps de purge sur une deuxième valeur supérieure à la première valeur dudit volume,c) selon lequel l'unité de commande (12), une fois le temps de purge écoulé, règle le volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08) à nouveau sur la première valeur,d) selon lequel l'unité de commande (12), une fois la première valeur à nouveau atteinte pour le volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08), allume un élément chauffant (06) chauffant un gaz,e) selon lequel un produit à sécher (03) chargé d'un solvant est amené à la chambre de séchage (02) de l'installation de séchage (01) et traverse cette chambre de séchage (02), dans lequel le produit à sécher (03) délivre sa charge de solvant au moins en partie dans la chambre de séchage (02) pendant son séchage,f) selon lequel le produit à sécher (03), pendant sa traversée de la chambre de séchage (02), est séché en contact direct avec le gaz en circulation chauffé à une température de traitement par l'élément chauffant (06),g) selon lequel l'unité de commande (12) démarre la traversée de la chambre de séchage (02) par le produit à sécher (03) et donc le processus de séchage dès que le gaz chauffé par l'élément chauffant (06) atteint sa température de traitement,h) selon lequel la température de traitement du gaz chauffé par l'élément chauffant (06) et le volume d'air vicié transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08) sont surveillés chacun par des capteurs reliés à l'unité de commande (12).
- Procédé selon la revendication 1, caractérisé en ce que l'unité de commande (12), pour le gaz destiné à être chauffé par l'élément chauffant (06), règle une température de traitement de 180 °C à 200 °C.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que le au moins un ventilateur d'air vicié (08) transporte le gaz affluant dans la chambre de séchage (02) conjointement avec la charge de solvant délivrée par le produit à sécher (03) dans la chambre de séchage (02) et avec le volume d'air situé dans la chambre de séchage (02) sous forme de volume d'air vicié à l'extérieur de cette chambre de séchage (02).
- Procédé selon la revendication 1, 2 ou 3, caractérisé en ce qu'au moins le volume d'air transporté à l'extérieur de la chambre de séchage (02) est remplacé par un volume d'air frais amené à la chambre de séchage (02).
- Procédé selon la revendication 1, 2, 3 ou 4, caractérisé en ce que la température de traitement de l'élément chauffant (06) chauffant le gaz et le volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08) sont régulés chacun par l'unité de commande (12).
- Procédé selon la revendication 1, 2, 3, 4 ou 5, caractérisé en ce que l'unité de commande (12), pendant le temps de purge, règle la deuxième valeur pour le volume d'air vicié destiné à être transporté à l'extérieur de la chambre de séchage (02) par le au moins un ventilateur d'air vicié (08) de manière à ce qu'elle soit au moins cinq fois plus élevée que la première valeur dudit volume.
- Procédé selon la revendication 1, 2, 3, 4, 5 ou 6, caractérisé en ce que le produit à sécher (03) est transporté pendant le processus de séchage au moyen d'un dispositif de transport (04) traversant la chambre de séchage (02).
- Procédé selon la revendication 1, 2, 3, 4, 5, 6 ou 7, caractérisé en ce que des boîtes composées d'un matériau métallique sont utilisées comme produit à sécher (03).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015202162.9A DE102015202162B4 (de) | 2015-02-06 | 2015-02-06 | Verfahren zum automatisierten Betreiben einer Trocknungsanlage mit einem zumindest mit einem Luftvolumen gefüllten Trocknungsraum |
PCT/EP2016/052346 WO2016124671A1 (fr) | 2015-02-06 | 2016-02-04 | Procédé permettant un fonctionnement automatisé d'une installation de séchage munie d'une chambre de séchage au moins remplie d'un volume d'air |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3254042A1 EP3254042A1 (fr) | 2017-12-13 |
EP3254042B1 true EP3254042B1 (fr) | 2019-01-23 |
Family
ID=55300503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16702927.1A Not-in-force EP3254042B1 (fr) | 2015-02-06 | 2016-02-04 | Méthode pour l'opération automatique d'une centrale de séchage avec une chambre remplie au moins d'un volume d'air |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3254042B1 (fr) |
DE (1) | DE102015202162B4 (fr) |
WO (1) | WO2016124671A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017117682A1 (de) * | 2017-08-03 | 2019-02-07 | Eisenmann Se | Ventilatoreinrichtung, Konditioniervorrichtung und Behandlungsanlage mit einer solchen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857925C (de) | 1949-01-04 | 1952-12-04 | Hartwig G Dipl-Ing Berge | Verfahren zum Trocknen von vorwiegend lackierten Blechdosenruempfen |
US3228113A (en) * | 1960-08-18 | 1966-01-11 | John J Fannon Products Co | Heating apparatus and method |
JPS51143743A (en) | 1975-06-06 | 1976-12-10 | Tsudakoma Ind Co Ltd | Temperature control device for running thread dryer |
DE3205962A1 (de) | 1982-02-19 | 1983-09-01 | Fleißner GmbH & Co, Maschinenfabrik, 6073 Egelsbach | Waermebehandlungskanal |
US4475293A (en) * | 1982-04-28 | 1984-10-09 | The Boc Group, Inc. | Controlled inerting of chamber atmospheres |
JP3351715B2 (ja) * | 1997-08-26 | 2002-12-03 | 株式会社河合楽器製作所 | 乾燥装置 |
EP1076800B1 (fr) * | 1998-05-07 | 2004-09-29 | Megtec Systems, Inc. | Secheur de bande continue equipe d'une source de chaleur a regeneration entierement integree |
GB2452071A (en) * | 2007-08-24 | 2009-02-25 | Willacy Oil Services Ltd | An apparatus for treating sediment |
DE102013206268B3 (de) * | 2013-04-10 | 2014-05-22 | Kba-Metalprint Gmbh | Bandtrockner mit einem Trocknungsraum |
-
2015
- 2015-02-06 DE DE102015202162.9A patent/DE102015202162B4/de not_active Expired - Fee Related
-
2016
- 2016-02-04 WO PCT/EP2016/052346 patent/WO2016124671A1/fr active Application Filing
- 2016-02-04 EP EP16702927.1A patent/EP3254042B1/fr not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3254042A1 (fr) | 2017-12-13 |
WO2016124671A1 (fr) | 2016-08-11 |
DE102015202162A1 (de) | 2016-08-11 |
DE102015202162B4 (de) | 2016-09-29 |
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