EP4122590A1 - Preconditioner for laboratory or testing, in particular for treating dry food or feedstuffs - Google Patents
Preconditioner for laboratory or testing, in particular for treating dry food or feedstuffs Download PDFInfo
- Publication number
- EP4122590A1 EP4122590A1 EP22185926.7A EP22185926A EP4122590A1 EP 4122590 A1 EP4122590 A1 EP 4122590A1 EP 22185926 A EP22185926 A EP 22185926A EP 4122590 A1 EP4122590 A1 EP 4122590A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing chamber
- preconditioner
- shaft
- nozzle
- water
- 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.)
- Withdrawn
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000011021 bench scale process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/625—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis the receptacle being divided into compartments, e.g. with porous divisions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2115—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
- B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
- B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
- B01F35/4122—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the side walls of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/715—Feeding the components in several steps, e.g. successive steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/06—Mixing of food ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/06—Mixing of food ingredients
- B01F2101/18—Mixing animal food ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0409—Relationships between different variables defining features or parameters of the apparatus or process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0418—Geometrical information
- B01F2215/0431—Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof
Definitions
- the invention relates to a preconditioner for laboratory or experimental operation, in particular for treating dry food or feed, comprising a housing with a mixing chamber, the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the mixing chamber being between 12 and 15 .
- the invention has variable design options for the process length and dosing positions.
- the conditioning of e.g. food and feed serves to hydrate the raw material mixture and/or to introduce thermal energy, e.g. in the form of steam, into the product.
- a preconditioner is intended to achieve the best quality and improved bioavailability of food and feed.
- the treatment serves to prepare for subsequent process steps, such as pelleting using an extruder downstream of the preconditioner.
- a preconditioner can be used to achieve an effective and at the same time cost-effective mixing and heat treatment of such foodstuffs and feedstuffs.
- Prior art industrial preconditioners are designed for throughput. This means that they have comparatively large dimensions, i.e. relatively large-volume mixing chambers in order to treat as much material as possible in the shortest possible time. Mass flows of 0.3 to 30 tons per hour are common. However, it is problematic if the production of new products is to be tested on such systems. Correspondingly large test quantities of food and feed to be treated are then necessary. In the tests on these industrial plants, the corresponding process parameters often have to be tested and adjusted for the new product. This usually requires several test runs with correspondingly large quantities of raw material. This means that a lot of waste is produced in the test operation, which then has to be disposed of as waste. Setting up, starting up and shutting down as well as cleaning such industrial plants also involves considerable effort.
- the present invention relates to the objects mentioned at the outset.
- dosing opening when, according to the invention, dosing opening is mentioned, this also means a feed for additives to the mixing chamber of the preconditioner.
- a preconditioner for laboratory or experimental operation in particular for treating dry food or feed, comprising a housing with a mixing chamber, the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the Mixing chamber between 12 and 15, preferably between 13 and 14 and more preferably between 13.5 and 13.8 is dissolved.
- Preferred embodiments of the invention are specified in the dependent claims, which can optionally be combined with one another.
- the inventors have recognized that a skilful choice of the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the mixing chamber results in particularly optimal treatment, above all thorough mixing of the material treated in the preconditioner. On the other hand, it and its individual parts are particularly easy to handle, e.g. when cleaning.
- the stated quotient is between 12 and 15, preferably between 13 and 14 and particularly preferably between 13.5 and 13.8.
- the length of the mixing chamber can be between 90 and 120 cm and preferably between 90 and 100 cm, with the inside diameter of the clear cross-section being between 6 and 10 cm, preferably between 6 and 8 cm.
- the mixing chamber preferably comprises at least three connections for water or steam in combination with a dosing opening for solids to feed the same to the mixing chamber, wherein the connections can be arranged at the periphery, preferably at the top of the mixing chamber.
- a nozzle can be connected to the connection in order to supply water to the mixing chamber, with the nozzle being designed as an atomizer nozzle, such as a two-component nozzle, in order to supply water to the mixing chamber using atomizer air, with the nozzle preferably being set up in such a way that the mixing chamber has 5 to 80 g of water per liter, preferably 10 to 50 g of water per liter of the volume of the mixing chamber can be supplied.
- a quantity sensor such as a flow meter, can be connected upstream of the connection in order to detect or set the quantity of water or steam supplied to the mixing chamber. Such low amounts of water can only be supplied to the mixing chamber with such a nozzle and such a flow rate meter.
- the preconditioner is set up according to the invention in such a way that it can in principle be operated on a laboratory bench.
- the dwell time is between 300 and 800 seconds when the process length (position 14) is fully utilized, at the dosing opening 17 between 240 and 470 seconds and at the dosing opening 18 at 170 and 400 seconds.
- the bulk density of the material to be treated is between 300 and 800 g/l, preferably between 400 and 600 g/l.
- the mixing chamber is filled to a maximum of one third, so that the material quantities in the mixing chamber range from 1 to 3 kg. If the process length is shortened, a cut-off disc can be attached to the mixing and conveying screw. This prevents the sample material from being pushed back into the rear space and the uncontrolled escape of steam. About 5 to 15 kg of material per hour can be treated in such a preconditioner.
- the amount of water vapor to be supplied to the mixing chamber can be 10 to 50 percent by weight, preferably 20 to 40 percent by weight, and the water content to be supplied can be 5 to 80 percent by weight, preferably 15 to 40 percent by weight of the material.
- the mixing chamber can be essentially cylindrical on the inside, so that inexpensive round material can be used for the preconditioner.
- a shaft is preferably arranged in the mixing chamber, with a multiplicity of paddles arranged on the circumference of the shaft.
- paddles which serve as mixer or conveyor screws, are inexpensive to produce and optimally convey and mix the material added to the mixing chamber.
- the shaft can be mounted at each of its axial ends by means of radial bearings, the radial bearings being supported directly or indirectly on the housing and preferably being accommodated in openings in the housing.
- a simple, cost-effective construction of the preconditioner can also be specified in which wearing parts, such as the radial bearings, can be easily replaced.
- the shaft can be driven in rotation via a drive assigned to the preconditioner, with a controller being assigned to the drive, by means of which the speed of the shaft can be adjusted in order to keep the food or feed in the mixing chamber between 300 and 800 seconds at the dosing opening 17 between 240 and 470 seconds and at the dosing opening 18 at 170 and 400 seconds. It has been shown that these are the optimal process parameters.
- a sensor for recording the temperature in the mixing chamber or the housing can be assigned to it.
- FIGS 1a and 1b show a preconditioner 1 according to the invention in a highly schematic and therefore not to scale side view.
- This comprises a housing 2 in which a mixing chamber 3 is accommodated.
- the preconditioner 1 has a plurality of feeds 14, 17, 18 in order to feed the material to be treated, such as food or feed, to the mixing chamber 3 and a discharge 15 in order to discharge the material from this again after it has been treated.
- the feed 14 and the discharge 15 are arranged on the circumference of the housing 2 .
- a shaft 4 (see 2 ) arranged. This comprises a multiplicity of paddles 5 arranged on the circumference of the shaft 4.
- the shaft 4 can be driven by means of a drive 7, to which a controller 8 is assigned for setting its speed.
- a controller 8 is assigned for setting its speed.
- the material supplied to the mixing chamber 3 via the feed 14 is mixed along the length L of the mixing chamber by the rotationally driven shaft 4 and the paddle 5 and discharged from the latter again via the discharge 15 .
- a cutting disc 19 (see Fig 3 ) to be attached. This separates the mixing chamber 3 into two separate chambers that are separate from one another. With this, the L/D ratio according to the invention for the mixing and conveying screw, ie the shaft 4 equipped with paddles 5, can be adjusted. In this way, the dwell time of the raw material in the mixing chamber 3 can be controlled in a more targeted manner.
- the separating disc 19 prevents the sample material (raw material possibly with other additives) from being pressed back into the second chamber (rear space) and the uncontrolled escape of steam from it.
- the shaft 4 can be mounted at both of its axial ends in or on the housing 2 by means of radial bearings 6 .
- connections 9, 10 for water and steam are distributed around the circumference of the housing between the feed 14 and the discharge 15. Connections 9 are for steam and connection 10 is for water.
- the connections 10 for water connect directly to the single supply 14 ( Fig. 1a ) and the three feeders 14, 17 and 18 ( Fig. 1b ) on.
- a nozzle 11 for water is connected as well as a quantity sensor 12.
- the quantity sensor 12 such as a flow meter and then the nozzle 11
- the nozzle 11 flows through first, before the water flows through the connection 10 into the Mixing chamber 3 is reached, for example, by nebulization.
- the nozzle 11 is preferably designed as a two-component nozzle, wherein it has a compressed air connection (not shown) in order to supply atomizing air to the nozzle 11 .
- connection 9 for steam can also be preceded by a corresponding quantity sensor 12 for adjusting the quantity of steam to be fed into the mixing chamber 3, although this is only shown for one connection 9 .
- the material within the mixing chamber 3 can be warmed up or heated by means of the steam supply via the connections 9 . Alternatively or additionally, an electric heater would also be conceivable in order to supply thermal energy to the material along the mixing chamber 3 .
- Fig. 1b serve as a chimney in order to dissipate thermal energy in the form of steam from the preconditioner 1 at an early stage.
- a sensor 13 for recording the temperature in the mixing chamber 3 or that of the housing 2 is assigned to the central connection 9 for steam.
- Another sensor 13 can also be arranged in the area of the drop 15 .
- the sensors 13 are intended to detect the temperature of the material to be treated in the mixing chamber 3 .
- the preconditioner 1 is dimensioned according to the invention such that the quotient of the length L of the mixing chamber 3 and the inner diameter of the clear cross section D of the mixing chamber 3 is between 12 and 15, preferably between 13 and 14 and particularly preferably between 13.5 and 13.8 lies.
- the preconditioner 1 can thus be dimensioned so small that it fits on a laboratory bench, but at the same time includes all the functions of a corresponding industrial plant.
- Preconditioner 1 With one provided for laboratory or test operation Preconditioner 1 comparatively small test quantities of food and feedstuffs to be treated can be processed. In the test operation, there is comparatively much less waste that has to be disposed of as waste.
- the set-up, start-up and shut-down as well as the cleaning of such a pre-conditioner also involves significantly less effort than is the case with industrial systems.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
Die Erfindung betrifft einen Vorkonditionierer (1) für den Labor- oder Versuchsbetrieb, insbesondere zum Behandeln von trockenen Lebens- oder Futtermitteln, umfassend ein Gehäuse (2) mit einer Mischkammer (3), wobei der Quotient aus der Länge der Mischkammer und dem Innendurchmesser des lichten Querschnitts der Mischkammer zwischen 12 und 15 beträgt.The invention relates to a preconditioner (1) for laboratory or test operation, in particular for treating dry food or feed, comprising a housing (2) with a mixing chamber (3), the quotient of the length of the mixing chamber and the inside diameter of the clear cross-section of the mixing chamber is between 12 and 15.
Description
Die Erfindung betrifft einen Vorkonditionierer für den Labor- oder Versuchsbetrieb, insbesondere zum Behandeln von trockenen Lebens- oder Futtermitteln, umfassend ein Gehäuse mit einer Mischkammer, wobei der Quotient aus der Länge der Mischkammer und dem Innendurchmesser des lichten Querschnitts der Mischkammer zwischen 12 und 15 beträgt. Zudem verfügt die Erfindung über variable Auslegungsmöglichkeiten der Verfahrenslänge und Dosierpositionen.The invention relates to a preconditioner for laboratory or experimental operation, in particular for treating dry food or feed, comprising a housing with a mixing chamber, the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the mixing chamber being between 12 and 15 . In addition, the invention has variable design options for the process length and dosing positions.
Die Konditionierung von z.B. Lebens- und Futtermitteln dient dazu, die Rohstoffmischung zu hydratisieren und/oder Wärmeenergie, z.B. in Form von Dampf in das Produkt einzubringen. Mittels eines Vorkonditionierers soll die beste Qualität sowie eine verbesserte Bioverfügbarkeit von Lebens- und Futtermitteln erzielt werden. Gleichzeitig dient die Behandlung der Vorbereitung für anschließende Prozessschritte, wie beispielsweise der Pelletierung mittels eines sich an den Vorkonditionierer anschließenden Extruders. Mittels eines Vorkonditionierers lässt sich eine effektive und gleichzeitig kostengünstige Misch- und Wärmebehandlung derartiger Lebens- und Futtermittel erzielen.The conditioning of e.g. food and feed serves to hydrate the raw material mixture and/or to introduce thermal energy, e.g. in the form of steam, into the product. A preconditioner is intended to achieve the best quality and improved bioavailability of food and feed. At the same time, the treatment serves to prepare for subsequent process steps, such as pelleting using an extruder downstream of the preconditioner. A preconditioner can be used to achieve an effective and at the same time cost-effective mixing and heat treatment of such foodstuffs and feedstuffs.
Durch die Vorbehandlung im Vorkonditionierer ergeben sich folgende Vorteile für den Herstellungsprozess:
- Verarbeitung von Rohmaterialien mit unerwünschten Eigenschaften, wie niedrige Schüttdichte, hochviskose und feuchte Materialien,
- Verbesserung der Bioverfügbarkeit von Inhaltsstoffen,
- Erhöhung des Massenstroms der kompletten Verarbeitungsanlage,
- Dosieren von temperaturempfindlichen Rohmaterialien und/oder Zusatzstoffen,
- Verbesserte Prozessstabilität.
- processing of raw materials with undesirable properties, such as low bulk density, highly viscous and moist materials,
- improving the bioavailability of ingredients,
- increasing the mass flow of the complete processing plant,
- Dosing of temperature-sensitive raw materials and/or additives,
- Improved process stability.
Durch den flexiblen Aufbau des Vorkonditionierers können an unterschiedlichen Positionen entlang des Verfahrensraumes sowohl Schüttgüter als auch Wasser, Dampf und weitere, teilweise hochviskose Flüssigkeiten dem Ausgangsprodukt in einem fest definierten Verhältnis von Verweilzeit und Durchsatz zudosiert werden. Ein exakt definierter Füllgrad erzielt dabei beste Ergebnisse im Bereich der Ad- und Absorption von Zusatzstoffen. So wird eine ideale Produktbehandlung der einzelnen Inhaltstoffe erreicht, mit exakter Einhaltung der Betriebsparameter, wie Verweilzeit, Temperatur und Wassergehalt.Due to the flexible design of the pre-conditioner, both bulk materials and water, steam and other liquids, some of which are highly viscous, can be metered into the starting product at different positions along the process area in a firmly defined ratio of residence time and throughput. On precisely defined degree of filling achieves the best results in the area of adsorption and absorption of additives. In this way, ideal product treatment of the individual ingredients is achieved, with exact compliance with the operating parameters such as residence time, temperature and water content.
Aus dem Stand der Technik bekannte Industrie-Vorkonditionierer sind auf Durchsatz ausgelegt. Das bedeutet, dass diese vergleichsweise große Abmessungen haben, also relativ großvolumige Mischkammern aufweisen, um möglichst viel Material innerhalb kürzester Zeit zu behandeln. So sind Massenströme von 0,3 bis 30 Tonnen pro Stunde üblich. Problematisch ist jedoch, wenn auf solchen Anlagen die Herstellung neuer Produkte getestet werden soll. Dann sind entsprechend große Versuchsmengen an zu behandelnden Lebens- und Futtermitteln nötig. Bei den Versuchen auf diesen Industrie-Anlagen müssen entsprechende Prozessparameter beim neuen Produkt oftmals erprobt und angepasst werden. Dies erfordert meist mehrere Versuchsdurchläufe mit entsprechend großen Mengen an Rohmaterial. So entsteht im Versuchsbetrieb auch viel Ausschuss, welcher dann als Abfall entsorgt werden muss. Auch das Rüsten, An- und Abfahren sowie die Reinigung solcher Industrie-Anlagen ist mit erheblichem Aufwand verbunden.Prior art industrial preconditioners are designed for throughput. This means that they have comparatively large dimensions, i.e. relatively large-volume mixing chambers in order to treat as much material as possible in the shortest possible time. Mass flows of 0.3 to 30 tons per hour are common. However, it is problematic if the production of new products is to be tested on such systems. Correspondingly large test quantities of food and feed to be treated are then necessary. In the tests on these industrial plants, the corresponding process parameters often have to be tested and adjusted for the new product. This usually requires several test runs with correspondingly large quantities of raw material. This means that a lot of waste is produced in the test operation, which then has to be disposed of as waste. Setting up, starting up and shutting down as well as cleaning such industrial plants also involves considerable effort.
Die vorliegende Erfindung betrifft die eingangs genannten Gegenstände.The present invention relates to the objects mentioned at the outset.
Ausgehend hiervon besteht daher die Aufgabe, einen Vorkonditionierer für den Labor- oder Versuchsbetrieb anzugeben, mittels dem Versuche in der Konditionierung von insbesondere Lebens- und Futtermitteln durchgeführt werden können, ohne dass dabei große Mengen an Ausschuss und damit einhergehend Abfall entstehen. Zusätzlich können durch die variable Anordnung der Dosierpositionen von Feststoff- und Flüssigkeitsdosierungen verschiedene Rohmaterialen zu unterschiedlichen Zeitpunkten dem Prozess hinzugefügt werden. Daraus ergeben sich verschiedene Vorteile. Zum einen können temperaturempfindliche Rohstoffe zu einem späteren Zeitpunkt in den Prozess zugegeben werden. Des Weiteren können native Rohstoffe in eine bereits thermisch- und mechanisch beanspruchte Matrix eingebracht werden. So können Wechselwirkungseffekte zwischen den Rohmaterialien gezielter gesteuert werden. Zusätzlich zu den genannten Aspekten, kann durch die variabel auslegbare Verfahrenslänge die Verweilzeit des Prozesses angepasst werden. Dafür wird der Rohstoff an einer, weiter zum Abwurf orientierten Dosieröffnung, eingebracht. Auch soll die Reinigung einer solchen Vorrichtung erheblich vereinfacht werden.Based on this, there is therefore the task of specifying a preconditioner for laboratory or experimental operation, by means of which experiments in the conditioning of, in particular, foodstuffs and feedstuffs can be carried out without large amounts of rejects and the associated waste being produced. In addition, due to the variable arrangement of the dosing positions for solid and liquid dosing, different raw materials can be added to the process at different times. This results in various advantages. On the one hand, temperature-sensitive raw materials can be added to the process at a later point in time. Furthermore, native raw materials can be introduced into a matrix that is already subject to thermal and mechanical stress. In this way, interaction effects between the raw materials can be controlled in a more targeted manner. In addition to the aspects mentioned, the dwell time of the process can be adjusted due to the variable process length. For that he will Raw material introduced at a dosing opening oriented further to the discharge. The cleaning of such a device should also be simplified considerably.
Wenn gemäß der Erfindung von Dosieröffnung die Rede ist, dann ist damit auch eine Zuführung für Zusatzstoffe zu der Mischkammer des Vorkonditionierers gemeint.When, according to the invention, dosing opening is mentioned, this also means a feed for additives to the mixing chamber of the preconditioner.
Die der Erfindung zu Grunde liegende Aufgabe wird durch einen Vorkonditionierer für den Labor- oder Versuchsbetrieb, insbesondere zum Behandeln von trockenen Lebens- oder Futtermitteln, umfassend ein Gehäuse mit einer Mischkammer, wobei der Quotient aus der Länge der Mischkammer und dem Innendurchmesser des lichten Querschnitts der Mischkammer zwischen 12 und 15, bevorzugt zwischen 13 und 14 und besonders bevorzugt zwischen 13,5 und 13,8 beträgt, gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den Unteransprüchen angegeben, die wahlweise miteinander kombiniert werden können.The object on which the invention is based is achieved by a preconditioner for laboratory or experimental operation, in particular for treating dry food or feed, comprising a housing with a mixing chamber, the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the Mixing chamber between 12 and 15, preferably between 13 and 14 and more preferably between 13.5 and 13.8 is dissolved. Preferred embodiments of the invention are specified in the dependent claims, which can optionally be combined with one another.
Die Erfinder haben erkannt, dass durch eine geschickte Wahl des Quotienten aus der Länge der Mischkammer und dem Innendurchmesser des lichten Querschnitts der Mischkammer zum einen eine besonders optimale Behandlung, vor allem Durchmischung des im Vorkonditionierer behandelten Materials stattfindet. Zum anderen lässt sich dieser und dessen Einzelteile, z.B. bei der Reinigung besonders gut handhaben. Der genannte Quotient liegt dabei erfindungsgemäß zwischen 12 und 15, bevorzugt zwischen 13 und 14 und besonders bevorzugt zwischen 13,5 und 13,8. Dabei kann die Länge der Mischkammer zwischen 90 und 120 cm und bevorzugt zwischen 90 und 100 cm betragen, wobei bevorzugt der Innendurchmesser des lichten Querschnitts zwischen 6 und 10 cm, bevorzugt zwischen 6 und 8 cm liegt.The inventors have recognized that a skilful choice of the quotient of the length of the mixing chamber and the inside diameter of the clear cross section of the mixing chamber results in particularly optimal treatment, above all thorough mixing of the material treated in the preconditioner. On the other hand, it and its individual parts are particularly easy to handle, e.g. when cleaning. According to the invention, the stated quotient is between 12 and 15, preferably between 13 and 14 and particularly preferably between 13.5 and 13.8. The length of the mixing chamber can be between 90 and 120 cm and preferably between 90 and 100 cm, with the inside diameter of the clear cross-section being between 6 and 10 cm, preferably between 6 and 8 cm.
Die Erfinder haben weiter erkannt, dass eine reine Miniaturisierung bekannter Industrie-Anlagen, auf den Labor- oder Tischmaßstab nicht das gewünschte Ergebnis brachte. Es hat sich gezeigt, dass auch die Art und Weise der Zuführung und Dosierung von Medien, wie Dampf oder Wasser in die Mischkammer des Vorkonditionierers nicht von den Industrie-Anlagen übernommen werden kann. So kann Wasser einem Vorkonditionierer im Labormaßstab nicht mittels Schweredruck oder mittels Leitungsdruck zugeführt werden, da die Menge an zugeführtem Wasser deutlich geringer ist und auch schwerer zu dosieren ist. Zudem ist eine Kombination aus Dampf und Wasser in Form einer Zweistoffdüse nachteilig, da bei solch einer Bauweise der Wasserdampf durch die Öffnung der Feststoffdosierung entweicht und diese blockiert. Das durch die Düse vernebelte Wasser bildet eine Barriere für den Wasserdampf. Daher umfasst die Mischkammer bevorzugt mindestens drei Anschlüsse für Wasser oder Dampf in Kombination mit einer Dosieröffnung für Feststoffe, um selbiges der Mischkammer zuzuführen, wobei die Anschlüsse am Umfang, bevorzugt an der Oberseite der Mischkammer angeordnet sein können. Dabei ist an den Anschluss eine Düse anschließbar ist, um der Mischkammer Wasser zuzuführen, wobei die Düse als Zerstäuberdüse, wie Zweistoffdüse, ausgebildet ist, um der Mischkammer Wasser mittels Zerstäuberluft zuzuführen, wobei die Düse bevorzugt derart eingerichtet ist, dass der Mischkammer 5 bis 80 g Wasser pro Liter, bevorzugt 10 bis 50 g Wasser pro Liter des Volumens der Mischkammer zuführbar ist. Dabei kann dem Anschluss ein Mengensensor, wie Durchflussmengenmesser vorgeschaltet sein, um die der Mischkammer zugeführte Menge an Wasser oder Dampf zu erfassen oder einzustellen. Erst mit einer solchen Düse und einem solchen Durchflussmengenmesser sind derartig niedrige Mengen an Wasser der Mischkammer zuführbar.The inventors have further recognized that a mere miniaturization of known industrial systems to the laboratory or bench scale did not produce the desired result. It has been shown that the way in which media, such as steam or water, are fed and metered into the mixing chamber of the pre-conditioner cannot be adopted by industrial systems either. For example, water cannot be fed to a laboratory-scale preconditioner by means of gravity pressure or by means of line pressure, since the amount of water fed in is significantly smaller and is also more difficult to dose. In addition, a combination of steam and water in the form of a two-substance nozzle is disadvantageous, since with such a design, the steam escapes through the opening of the solids metering and this blocked. The water nebulized by the nozzle forms a barrier for the water vapour. Therefore, the mixing chamber preferably comprises at least three connections for water or steam in combination with a dosing opening for solids to feed the same to the mixing chamber, wherein the connections can be arranged at the periphery, preferably at the top of the mixing chamber. A nozzle can be connected to the connection in order to supply water to the mixing chamber, with the nozzle being designed as an atomizer nozzle, such as a two-component nozzle, in order to supply water to the mixing chamber using atomizer air, with the nozzle preferably being set up in such a way that the mixing chamber has 5 to 80 g of water per liter, preferably 10 to 50 g of water per liter of the volume of the mixing chamber can be supplied. A quantity sensor, such as a flow meter, can be connected upstream of the connection in order to detect or set the quantity of water or steam supplied to the mixing chamber. Such low amounts of water can only be supplied to the mixing chamber with such a nozzle and such a flow rate meter.
Wenn gemäß der Erfindung von Labor- oder Versuchsbetrieb die Rede ist, der Vorkonditionierer also derart erfindungsgemäß eingerichtet ist, dass er prinzipiell auf einem Labortisch betrieben werden kann. Damit ist gemeint, dass dieser derart eingerichtet ist, dass die Verweilzeit des Materials im Vorkonditionierer je nach Prozesslänge flexibel eingestellt werden kann. So liegt die Verweilzeit bei dem vollen Nutzen der Verfahrenslänge (Position 14) zwischen 300 und 800 Sekunden, bei der Dosieröffnung 17 zwischen 240 und 470 Sekunden und bei der Dosieröffnung 18 bei 170 und 400 Sekunden. Die Schüttdichte des zu behandelnden Materials liegt dabei zwischen 300 und 800 g/l, bevorzugt zwischen 400 und 600 g/l. Die Mischkammer ist im Betrieb maximal zu einem Drittel gefüllt, sodass sich die Materialmengen in der Mischkammer im Bereich zwischen 1 bis 3 kg ergeben. Bei einer Verkürzung der Verfahrenslänge kann eine Abtrennscheibe auf der Misch- und Förderschnecke angebracht werden. Diese verhindert das Zurückdrücken des Probenmaterials in den Rückraum und das unkontrollierte Entweichen von Dampf. So können in einem solchen Vorkonditionierer etwa 5 bis 15 kg Material pro Stunde behandelt werden. Dabei kann die Menge des der Mischkammer zuzuführenden Wasserdampfs 10 bis 50 Gewichtsprozent, bevorzugt 20 bis 40 Gewichtsprozent und der zuzuführende Wassergehalt, 5 bis 80 Gewichtsprozent, bevorzugt 15 bis 40 Gewichtsprozent des Materials betragen.If according to the invention there is talk of laboratory or test operation, that is to say the preconditioner is set up according to the invention in such a way that it can in principle be operated on a laboratory bench. This means that it is set up in such a way that the dwell time of the material in the preconditioner can be flexibly adjusted depending on the length of the process. Thus, the dwell time is between 300 and 800 seconds when the process length (position 14) is fully utilized, at the
Mit Vorteil kann die Mischkammer im Inneren im Wesentlichen zylindrisch ausgebildet sein, sodass kostengünstiges Rundmaterial für den Vorkonditionierer zum Einsatz kommen kann.Advantageously, the mixing chamber can be essentially cylindrical on the inside, so that inexpensive round material can be used for the preconditioner.
Bevorzugt ist in der Mischkammer eine Welle angeordnet ist, mit einer Vielzahl von am Umfang der Welle angeordneten Paddeln. Derartige als Mischer- oder Förderschnecken dienende Paddel sind kostengünstig herzustellen und fördern und mischen das der Mischkammer zugegebene Material optimal.A shaft is preferably arranged in the mixing chamber, with a multiplicity of paddles arranged on the circumference of the shaft. Such paddles, which serve as mixer or conveyor screws, are inexpensive to produce and optimally convey and mix the material added to the mixing chamber.
Dabei kann die Welle jeweils an ihren axialen Enden mittels Radiallagern gelagert sein, wobei sich die Radiallager mittelbar oder unmittelbar an dem Gehäuse abstützen und bevorzugt in Öffnungen des Gehäuses aufgenommen sind. So kann ebenfalls eine einfache, kostengünstige Konstruktion des Vorkonditionierers angegeben werden, bei der Verschleißteile, wie die Radiallager einfach ausgetauscht werden können.The shaft can be mounted at each of its axial ends by means of radial bearings, the radial bearings being supported directly or indirectly on the housing and preferably being accommodated in openings in the housing. A simple, cost-effective construction of the preconditioner can also be specified in which wearing parts, such as the radial bearings, can be easily replaced.
Die Welle kann über einen dem Vorkonditionierer zugeordneten Antrieb drehantreibbar sein, wobei dem Antrieb eine Steuerung zugeordnet sein kann, mittels welcher die Drehzahl der Welle einstellbar ist, um die Verweilzeit des Lebens- oder Futtermittels in der Mischkammer zwischen 300 und 800 Sekunden, bei der Dosieröffnung 17 zwischen 240 und 470 Sekunden und bei der Dosieröffnung 18 bei 170 und 400 Sekunden einzustellen. Es hat sich gezeigt, dass dies die optimalen Prozessparameter sind.The shaft can be driven in rotation via a drive assigned to the preconditioner, with a controller being assigned to the drive, by means of which the speed of the shaft can be adjusted in order to keep the food or feed in the mixing chamber between 300 and 800 seconds at the
Um auch den weiteren Prozessparameter, nämlich die Temperatur des zu behandelnden Materials bzw. des Gehäuses des Vorkonditionierers zu erfassen und zu überwachen, kann diesem ein Sensor zur Aufnahme der Temperatur in der Mischkammer oder des Gehäuses zugeordnet sein.In order to also detect and monitor the other process parameters, namely the temperature of the material to be treated or the housing of the preconditioner, a sensor for recording the temperature in the mixing chamber or the housing can be assigned to it.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt.Further measures improving the invention are presented in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to the figures.
Es zeigen:
- Fig. 1a, b
- je eine schematische Seitenansicht eines erfindungsgemäßen Vorkonditionierers gemäß zweier unterschiedlicher Ausführungsformen;
- Fig. 2
- eine mögliche Ausführungsform der Welle des Vorkonditionierers aus
Fig. 1 ; - Fig. 3
- eine Seitenansicht auf die Lagerung der Welle aus
Fig. 2 .
- Fig. 1a, b
- each a schematic side view of a preconditioner according to the invention according to two different embodiments;
- 2
- a possible embodiment of the shaft of the
preconditioner 1 ; - 3
- a side view of the bearing of the
shaft 2 .
Wie in
Zwischen der Zuführung 14 und dem Abwurf 15 sind am Umfang des Gehäuses verteilt mehrere Anschlüsse 9, 10 für Wasser und Dampf angeordnet. Die Anschlüsse 9 sind für Dampf, der Anschluss 10 für Wasser vorgesehen.A plurality of
Die Anschlüsse 10 für Wasser schließen sich unmittelbar an die einzige Zuführung 14 (
Durch die modulare Bauweise ergeben sich Vorteile in Variabilität der Prozessführung. So können durch die Zuführungen 14, 17 und 18 Feststoffdosierungen und Dosierpumpen gleichzeitig weitere Zusatzstoffe (Feststoff, Wasser, Öl, etc.) in die Mischkammer 3 eindosieren. Dadurch können temperatur- und/oder scherempfindliche Materialen (Fette, Enzyme, Vitamine, Hormone, etc.) zu einem späteren Zeitpunkt in den Prozess zugegeben werden, die schonender im Prozess verarbeitet werden. Grundsätzlich könnte eine der weiteren Zuführungen aus
Vorliegend ist dem mittleren Anschluss 9 für Dampf ein Sensor 13 zur Aufnahme der Temperatur in der Mischkammer 3 oder der des Gehäuses 2 zugeordnet. Ein weiterer Sensor 13 kann auch im Bereich des Abwurfs 15 angeordnet sein. Die Sensoren 13 sollen die Temperatur des zu behandelnden Materials in der Mischkammer 3 erfassen.In the present case, a
Der Vorkonditionierer 1 ist dabei erfindungsgemäß derart dimensioniert, dass der Quotient aus der Länge L der Mischkammer 3 und dem Innendurchmesser des lichten Querschnitts D der Mischkammer 3 zwischen 12 und 15, bevorzugt zwischen 13 und 14 und besonders bevorzugt zwischen 13,5 und 13,8 liegt. Damit kann der Vorkonditionierer 1 derart klein dimensioniert werden, dass er auf einen Labortisch passt, gleichzeitig aber alle Funktionen einer entsprechenden Industrie-Anlage umfasst. Mit einem solchen für den Labor- oder Versuchsbetrieb vorgesehenen Vorkonditionierer 1 können vergleichsweise kleine Versuchsmengen an zu behandelnden Lebens- und Futtermitteln verarbeitet werden. So entsteht im Versuchsbetrieb vergleichsweise viel weniger Ausschuss, welcher als Abfall entsorgt werden muss. Auch das Rüsten, An- und Abfahren sowie die Reinigung eines solchen Vorkonditionierers ist mit wesentlich weniger Aufwand verbunden, als dies bei Industrie-Anlagen der Fall ist.The
- 11
- Vorkonditioniererpreconditioner
- 22
- GehäuseHousing
- 33
- Mischkammermixing chamber
- 44
- WelleWave
- 55
- Paddelpaddle
- 66
- Radiallagerradial bearing
- 77
- Antriebdrive
- 88th
- Steuerungsteering
- 9, 109, 10
- Anschlussconnection
- 1111
- Düsejet
- 1212
- Mengensensorquantity sensor
- 1313
- Temperatursensortemperature sensor
- 1414
- Zuführungfeeding
- 1515
- AbwurfRelease
- 1616
- Schornsteinchimney
- 1717
- Zuführungfeeding
- 1818
- Zuführungfeeding
- 1919
- Abtrennscheibecut-off wheel
- DD
- Innendurchmesser des lichten QuerschnittsInner diameter of the clear cross-section
- LL
- Länge der Mischkammerlength of the mixing chamber
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021119066.5A DE102021119066A1 (en) | 2021-07-22 | 2021-07-22 | PRECONDITIONER FOR LABORATORY OR TRIAL OPERATION,PARTICULARLY FOR TREATMENT OF DRY FOOD OR FEED |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4122590A1 true EP4122590A1 (en) | 2023-01-25 |
Family
ID=82656295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22185926.7A Withdrawn EP4122590A1 (en) | 2021-07-22 | 2022-07-20 | Preconditioner for laboratory or testing, in particular for treating dry food or feedstuffs |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4122590A1 (en) |
DE (1) | DE102021119066A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000049071A2 (en) * | 1999-02-19 | 2000-08-24 | Equistar Chemicals, Lp | Non-blocking polymeric particles and method and apparatus for preparing them |
WO2009047013A2 (en) * | 2007-10-12 | 2009-04-16 | Bayer Cropscience Ag | Process for producing transparent pasta by extrusion |
US20110086130A1 (en) * | 2009-10-09 | 2011-04-14 | Axelrod Glen S | Continuous Production Of Edible Food Products With Selected Shapes |
EP2930172A1 (en) * | 2012-12-04 | 2015-10-14 | Suzhou Tianma Specialty Chemicals Co., Ltd. | Device and method for continuously preparing high-purity akd without solvent |
WO2021222049A1 (en) * | 2020-05-01 | 2021-11-04 | Merck Sharp & Dohme Corp. | Modular blender and method of using same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK1568671T3 (en) | 2004-02-24 | 2010-07-26 | Lafarge Platres | Process and apparatus for producing a cured, cellular, cement-like mass |
US11224990B2 (en) | 2016-08-05 | 2022-01-18 | United States Gypsum Company | Continuous methods of making fiber reinforced concrete panels |
-
2021
- 2021-07-22 DE DE102021119066.5A patent/DE102021119066A1/en active Pending
-
2022
- 2022-07-20 EP EP22185926.7A patent/EP4122590A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000049071A2 (en) * | 1999-02-19 | 2000-08-24 | Equistar Chemicals, Lp | Non-blocking polymeric particles and method and apparatus for preparing them |
WO2009047013A2 (en) * | 2007-10-12 | 2009-04-16 | Bayer Cropscience Ag | Process for producing transparent pasta by extrusion |
US20110086130A1 (en) * | 2009-10-09 | 2011-04-14 | Axelrod Glen S | Continuous Production Of Edible Food Products With Selected Shapes |
EP2930172A1 (en) * | 2012-12-04 | 2015-10-14 | Suzhou Tianma Specialty Chemicals Co., Ltd. | Device and method for continuously preparing high-purity akd without solvent |
WO2021222049A1 (en) * | 2020-05-01 | 2021-11-04 | Merck Sharp & Dohme Corp. | Modular blender and method of using same |
Also Published As
Publication number | Publication date |
---|---|
DE102021119066A1 (en) | 2023-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102005025016B4 (en) | Method and apparatus for the continuous production of homogeneous mixtures | |
EP1932427B1 (en) | Device and method for incorporating liquid in free-flowing dry substances | |
EP0835882A2 (en) | Process and device for simultaneously grinding and drying a humid cellulose ether containing material | |
DE1457182B2 (en) | Device for continuous mixing | |
DE2952544C2 (en) | ||
DE2056611B2 (en) | METHOD AND APPARATUS FOR THE PRODUCTION OF DYE DISPERSIONS | |
DE69005433T2 (en) | MILL TO MAKE A SUSPENSION CONSISTING OF SOLID PARTICLES IN A FAT CARRIER. | |
EP1157736A1 (en) | Device and process for the quasi-continuous treatment of granular material | |
DE10139413B4 (en) | Device for mixing and dispersing powdery fine to coarse-grained substances with at least one liquid | |
EP1273341A1 (en) | Method for vertical mixing and device therefor | |
EP0450012B1 (en) | Device and process for mixing and/or granulating material | |
WO2012123347A2 (en) | Stirred ball mill | |
DE102006007485B3 (en) | Portioning device in particular for fine powder, comprises specifically positioned sieve and two conveyor worms | |
EP4122590A1 (en) | Preconditioner for laboratory or testing, in particular for treating dry food or feedstuffs | |
DE1118959B (en) | Method and device for the preparation of thermoplastics or thermosets | |
EP3102318B1 (en) | Method and device for mixing and metering solid materials to be metered into a carrier liquid | |
DE2341639B2 (en) | Method and device for the production of chocolate masses | |
EP1285586B1 (en) | Process and apparatus for continuous feeding of confectionery masses | |
EP3247786B1 (en) | Device for the electrical disintegration of cell structures, and installation and use of the device for producing feed intermediates and feed products | |
EP0390809B2 (en) | Grinding device | |
DE102019205147A1 (en) | Process for emptying a device for the production of granules or extrudates | |
EP2488289A1 (en) | Centrifugal mixer, method and use for refining | |
EP3585177B1 (en) | Butter-making method | |
DE4133604C2 (en) | Device for conveying and mixing a solid with a liquid | |
DE1910255B2 (en) | Device for the continuous production of edible fat emulsions such as butter and margarine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20230718 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20240305 |