WO2001083343A1 - Method and device for conveying fibrous materials - Google Patents

Method and device for conveying fibrous materials Download PDF

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Publication number
WO2001083343A1
WO2001083343A1 PCT/EP2001/004944 EP0104944W WO0183343A1 WO 2001083343 A1 WO2001083343 A1 WO 2001083343A1 EP 0104944 W EP0104944 W EP 0104944W WO 0183343 A1 WO0183343 A1 WO 0183343A1
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WO
WIPO (PCT)
Prior art keywords
pressure
feed pump
storage container
pressure storage
mass
Prior art date
Application number
PCT/EP2001/004944
Other languages
German (de)
French (fr)
Inventor
Harald Mai
Original Assignee
Hebenstreit Gmbh
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 Hebenstreit Gmbh filed Critical Hebenstreit Gmbh
Priority to AU72389/01A priority Critical patent/AU7238901A/en
Publication of WO2001083343A1 publication Critical patent/WO2001083343A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details

Definitions

  • the invention relates to a method for conveying fibrous, pasty to thin-bodied masses with a regulated feed pump.
  • Fiber-containing masses form the starting materials for the manufacture of decomposable packaging.
  • the fiber-containing masses are dosed in baking tins and baked into thin-walled packaging containers by the action of heat, the particular advantage of which is that they are easily rotten and can therefore be disposed of, for example composted, together with the remnants of the normally packaged foods.
  • Such rotting packs are made from fiber-containing organic materials in a similar way to baking waffles in continuously operating baking machines. For a trouble-free workflow, an exact dosage of the mass poured into the individual baking tins is necessary. This metering process is made more difficult by the fiber components of the materials to be metered, and in particular their structural viscosity.
  • the object of the invention is therefore to provide a method of the type mentioned at the beginning, with which fibrous, pasty to low-viscosity organic masses can be provided with adjustable, constant pressure for metering in baking tins.
  • the feed pump is regulated as a function of the fill level in a pressure storage container through which the mass flows, and in that a constant gas pressure above the mass contained therein is maintained in the pressure storage container.
  • the control of the feed pump is thus carried out exclusively as a function of the respective level in the pressure storage container.
  • This fill level can be detected without difficulty regardless of the consistency of the mass used in each case and therefore provides a controlled variable that is used to regulate the feed pump is reliably available.
  • it is particularly advantageous that fluctuations in the fill level in the pressure storage container have only a comparatively small influence on the pressure at the outlet of the pressure storage container.
  • the constant gas pressure in the pressure storage container above the mass contained therein causes a pressure at the outlet of the pressure storage container which is kept constant with high accuracy.
  • This gas pressure for example air pressure, can be kept constant with relatively simple, generally available measures.
  • the level in the pressure storage tank is kept constant by regulating the feed pump.
  • the invention also relates to a device for performing the method.
  • the device according to the invention is characterized in that a pressure storage container connected to the outlet of the feed pump is connected to at least one discharge line for the mass, and that a level sensor is arranged in the pressure storage container, which is connected to a control device via a signal line the feed pump is connected.
  • This device is of relatively simple construction and less prone to failure. It does not contain a pressure sensor with the mass to be conveyed but nonetheless certain that a specified delivery pressure is maintained.
  • the pressure storage container is connected to a gas pressure constant control device via a gas line.
  • the drawing shows a schematic representation of a device for conveying fibrous, pasty to low-viscosity organic masses, which is fed to an infusion device 1 for baking tins 2 (only indicated in simplified form).
  • a regulated feed pump 3 serving for mass supply for example a rotary lobe pump, is connected with its outlet 3a to a pressure-tightly closed pressure storage container 4.
  • One or more discharge lines 5 lead from the pressure storage container 4 to one or more pouring devices 1, in which individual quantity metering devices 6 meter the quantities of the fibrous mass to be dispensed to the individual baking molds 2. For this it is necessary to provide the mass in the discharge line 5 with a constant adjustable pressure.
  • a level sensor 7 is arranged in the pressure storage container 4, which detects the respective filling level of the fiber-containing mass 8 in the pressure storage container 4 and, via a signal line 9, detects the filling level Corresponding signal to a control device 10, which controls the feed pump 3 so that an approximately constant level in the pressure accumulator 4 is maintained.
  • a gas pressure constant control device 11 is connected via a gas line 12 to the upper region of the
  • Pressure storage tank 4 connected and serves to maintain a constant gas pressure in this area. Air is used as the compressed gas in the exemplary embodiment shown.
  • the compressed air provided from a compressed air network 12 is fed to a proportional valve 13, which generates a constant air pressure in a connected pressure control container 14.
  • a pressure sensor 15 connected to the pressure control container 14 detects the pressure in the pressure control container 14 and can control the proportional valve 13n.
  • the pressure regulating container 14 is connected to the pressure storage container 4 via the gas line 12.

Abstract

The invention relates to a method for conveying fibrous, pasty to liquid materials in which a feed pump (3) is regulated according to the level in a pressure accumulator container (4) through which the material flows. Inside the pressure accumulator container (4), a constant gas pressure is maintained over the material (8) contained therein. The level in the pressure accumulator container (4) is constantly maintained by regulating the feed pump (3).

Description

Verfahren und Vorrichtung zur Förderung von faserhaltigen MassenMethod and device for conveying fibrous masses
Die Erfindung betrifft ein Verfahren zur Förderung von faserhaltigen, pastösen bis dünnflüssigen Massen mit einer geregelten Förderpumpe.The invention relates to a method for conveying fibrous, pasty to thin-bodied masses with a regulated feed pump.
Faserhaltige Massen, deren Konsistenz sehr unterschiedlich sein kann, bilden die Ausgangsmaterialien für die Herstellung von verrottbaren Verpackungen. Die faserhaltigen Massen werden in Backformen dosiert und zu dünnwandigen Verpackungsbehältern durch Hitzeeinwirkung gebacken, deren besonderer Vorteil darin besteht, dass sie leicht verrottbar sind und deshalb zusammen mit den Resten der üblicherweise abgepackten Lebensmitteln entsorgt, beispielsweise kompostiert werden können.Fiber-containing masses, the consistency of which can vary widely, form the starting materials for the manufacture of decomposable packaging. The fiber-containing masses are dosed in baking tins and baked into thin-walled packaging containers by the action of heat, the particular advantage of which is that they are easily rotten and can therefore be disposed of, for example composted, together with the remnants of the normally packaged foods.
Die Herstellung solcher verrottbarer Verpackungen aus faserhaltigen organischen Massen erfolgt ähnlich wie das Backen von Waffeln in kontinuierlich arbeitenden Backmaschinen. Für einen störungsfreien Arbeitsablauf ist eine genaue Dosierung der in die einzelnen Backformen eingefüllten Masse erforderlich. Dieser Dosiervorgang wird durch die Faserbestandteile der zu dosierenden Massen, und insbesondere deren Strukturviskosität erschwert.Such rotting packs are made from fiber-containing organic materials in a similar way to baking waffles in continuously operating baking machines. For a trouble-free workflow, an exact dosage of the mass poured into the individual baking tins is necessary. This metering process is made more difficult by the fiber components of the materials to be metered, and in particular their structural viscosity.
Um eine möglichst genaue Dosierung in die einzelnen Backformen zu ermöglichen, ist es erforderlich, den hierzu verwendeten Aufgießvorrichtungen die faserhaltigen, pastösen bis dünnflüssigen Massen mit konstantem Druck zuzuführen. Üblicherweise werden hierzu geregelte Förderpumpen verwendet, deren Fördermenge in Abhängigkeit von dem Druck in der Förderleitung geregelt wird. Dies ist mit verhältnismäßig großem Aufwand verbunden und nur ungenau durchzuführen, weil die Druckmessung bei den hier zu verarbeitenden Massen schwierig, ungenau und störanfällig ist. Außerdem ist eine feinfühlige Regelung derjenigen Förderpumpen, die für solche schwierig zu fördernden Massen geeignet sind, nicht oder nur mit großem Aufwand möglich.In order to enable the most accurate dosing in the individual baking tins, it is necessary to use the For this purpose, pouring devices used to feed the fibrous, pasty to thin-bodied masses at constant pressure. Regulated delivery pumps are usually used for this purpose, the delivery rate of which is regulated as a function of the pressure in the delivery line. This is associated with a relatively large outlay and can only be carried out inaccurately because the pressure measurement in the masses to be processed here is difficult, inaccurate and prone to failure. In addition, sensitive control of those feed pumps that are suitable for such difficult to convey masses is not possible or only with great effort.
Aufgabe der Erfindung ist es daher, ein Verfahren der eingangs genannten Gattung zu schaffen, m t dem faserhaltige, pastöse bis dünnflüssige organische Massen mit einstellbarem konstantem Druck zur Dosierung in Backformen bereitgestellt werden können.The object of the invention is therefore to provide a method of the type mentioned at the beginning, with which fibrous, pasty to low-viscosity organic masses can be provided with adjustable, constant pressure for metering in baking tins.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Förderpumpe in Abhängigkeit von dem Füllstand in einem von der Masse durchflossenen Druckspeicherbehälter geregelt wird, und dass in dem Druckspeicherbehälter ein konstanter Gasdruck über der darin enthaltenen Masse eingehalten wird.This object is achieved according to the invention in that the feed pump is regulated as a function of the fill level in a pressure storage container through which the mass flows, and in that a constant gas pressure above the mass contained therein is maintained in the pressure storage container.
Die Regelung der Förderpumpe erfolgt hierbei somit ausschließlich in Abhängigkeit von dem jeweiligen Füllstand im Druckspeicherbehälter. Dieser Füllstand kann unabhängig von der Konsistenz der jeweils verwendeten Masse ohne Schwierigkeiten erfasst werden und liefert daher eine Regelgröße, die zur Regelung der Förderpumpe zuverlässig zur Verfügung steht. Besonders vorteilhaft ist in diesem Zusammenhang, dass Schwankungen des Füllstands im Druckspeicherbehälter nur einen vergleichsweise geringen Einfluss auf den Druck am Ausgang des Druckspeicherbehälters haben.The control of the feed pump is thus carried out exclusively as a function of the respective level in the pressure storage container. This fill level can be detected without difficulty regardless of the consistency of the mass used in each case and therefore provides a controlled variable that is used to regulate the feed pump is reliably available. In this context, it is particularly advantageous that fluctuations in the fill level in the pressure storage container have only a comparatively small influence on the pressure at the outlet of the pressure storage container.
Der konstante Gasdruck im Druckspeicherbehälter über der darin enthaltenen Masse bewirkt einen mit hoher Genauigkeit konstant gehaltenen Druck am Auslass des Druckspeicherbehälters. Die Konstanthaltung dieses Gasdrucks, beispielsweise Luftdrucks, ist mit verhältnismäßig einfachen, allgemein verfügbaren Maßnahmen möglich.The constant gas pressure in the pressure storage container above the mass contained therein causes a pressure at the outlet of the pressure storage container which is kept constant with high accuracy. This gas pressure, for example air pressure, can be kept constant with relatively simple, generally available measures.
Vorzugswand wird der Füllstand im Druckspeicherbehälter durch Regelung der Förderpumpe konstant gehalten.Preferred wall, the level in the pressure storage tank is kept constant by regulating the feed pump.
Die Erfindung betrifft darüber hinaus eine Vorrichtung zur Durchführung des Verfahrens . Ausgehend von einer Vorrichtung mit einer geregelten Förderpumpe ist die erfindungsgemäße Vorrichtung dadurch gekennzeichnet, dass ein an den Auslass der Förderpumpe angeschlossener Druckspeicherbehälter mit mindestens einer Austragsleitung für die Masse verbunden ist, und dass im Druckspeicherbehälter ein Füllstandssensor angeordnet ist, der über eine Signalleitung mit einer Regeleinrichtung der Förderpumpe verbunden ist.The invention also relates to a device for performing the method. Starting from a device with a regulated feed pump, the device according to the invention is characterized in that a pressure storage container connected to the outlet of the feed pump is connected to at least one discharge line for the mass, and that a level sensor is arranged in the pressure storage container, which is connected to a control device via a signal line the feed pump is connected.
Diese Vorrichtung ist von verhältnismäßig einfachem Aufbau und wenig störanfällig. Sie enthält keinen mit der zu fördernden Masse beaufschlagten Drucksensor, stellt aber gleichwohl die Einhaltung eines vorgegebenen Förderdrucks sicher.This device is of relatively simple construction and less prone to failure. It does not contain a pressure sensor with the mass to be conveyed but nonetheless certain that a specified delivery pressure is maintained.
Vorzugsweise ist vorgesehen, dass der Druckspeicherbehälter über eine Gasleitung mit einer Gasdruck-Konstantregeleinrichtung verbunden ist.It is preferably provided that the pressure storage container is connected to a gas pressure constant control device via a gas line.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in der Zeichnung dargestellt ist.An exemplary embodiment of the invention is illustrated below, which is shown in the drawing.
Die Zeichnung zeigt in schematischer Darstellungsweise eine Vorrichtung zur Förderung von faserhaltigen, pastösen bis dünnflüssigen organischen Massen, die einer (nur vereinfacht angedeuteten) Aufgussvorrichtung 1 für Backformen 2 zugeführt wird.The drawing shows a schematic representation of a device for conveying fibrous, pasty to low-viscosity organic masses, which is fed to an infusion device 1 for baking tins 2 (only indicated in simplified form).
Eine der Massezufuhr dienende geregelte Förderpumpe 3, beispielsweise eine Drehkolbenpumpe, ist mit ihrem Auslass 3a an einen druckdicht geschlossenen Druckspeicherbehälter 4 angeschlossen. Eine oder mehrere Austragsleitungen 5 führen vom Druckspeicherbehälter 4 zu einer oder mehreren Ausgussvorrichtungen 1, in denen einzelne Mengendosiervorrichtungen 6 die an die einzelnen Backformen 2 abzugebenden Mengen der faserhaltigen Masse dosieren. Hierfür ist es erforderlich, die Masse in der Austragsleitung 5 mit konstant einstellbarem Druck bereitzustellen.A regulated feed pump 3 serving for mass supply, for example a rotary lobe pump, is connected with its outlet 3a to a pressure-tightly closed pressure storage container 4. One or more discharge lines 5 lead from the pressure storage container 4 to one or more pouring devices 1, in which individual quantity metering devices 6 meter the quantities of the fibrous mass to be dispensed to the individual baking molds 2. For this it is necessary to provide the mass in the discharge line 5 with a constant adjustable pressure.
Im Druckspeicherbehälter 4 ist ein Füllstandssensor 7 angeordnet, der den jeweiligen Füllstand der faserhaltigen Masse 8 im Druckspeicherbehälter 4 erfasst und über eine Signalleitung 9 ein dem Füllstand entsprechendes Signal an eine Regeleinrichtung 10 liefert, die die Förderpumpe 3 so regelt, dass ein angenähert konstanter Füllstand im Druckspeicherbehälter 4 eingehalten wird.A level sensor 7 is arranged in the pressure storage container 4, which detects the respective filling level of the fiber-containing mass 8 in the pressure storage container 4 and, via a signal line 9, detects the filling level Corresponding signal to a control device 10, which controls the feed pump 3 so that an approximately constant level in the pressure accumulator 4 is maintained.
Eine Gasdruck-Konstantregeleinrichtung 11 ist über eine Gasleitung 12 an den oberen Bereich desA gas pressure constant control device 11 is connected via a gas line 12 to the upper region of the
Druckspeicherbehälters 4 angeschlossen und dient dazu, in diesem Bereich einen konstanten Gasdruck aufrechtzuerhalten. Als Druckgas wird bei dem dargestellten Ausführungsbeispiel Luft verwendet.Pressure storage tank 4 connected and serves to maintain a constant gas pressure in this area. Air is used as the compressed gas in the exemplary embodiment shown.
Die aus einem Druckluftnetz 12 bereitgestellte Druckluft wird einem Proportionalventil 13 zugeführt, das in einem angeschlossenen Druckregelbehälter 14 einen konstanten Luftdruck erzeugt. Ein an den Druckregelbehälter 14 angeschlossener Drucksensor 15 erfasst den Druck im Druckregelbehälter 14 und kann das Proportionalventil 13n steuern. Der Druckregelbehälter 14 ist über die Gasleitung 12 mit dem Druckspeicherbehälter 4 verbunden. The compressed air provided from a compressed air network 12 is fed to a proportional valve 13, which generates a constant air pressure in a connected pressure control container 14. A pressure sensor 15 connected to the pressure control container 14 detects the pressure in the pressure control container 14 and can control the proportional valve 13n. The pressure regulating container 14 is connected to the pressure storage container 4 via the gas line 12.

Claims

Verfahren und Vorrichtung zur Förderung von faserhaltigen MassenP a t e n t a n s p r ü c h e Method and device for promoting fiber-containing mass patent claims
1. Verfahren zur Förderung von faserhaltigen, pastösen bis dünnflüssigen Massen mit einer geregelten Förderpumpe (3) , dadurch gekennzeichnet, dass die Förderpumpe (3) in Abhängigkeit von dem Füllstand in einem von der Masse durchflossenen Druckspeicherbehälter (4) geregelt wird, und dass in dem Druckspeicherbehälter (4) ein konstanter Gasdruck über der darin enthaltenen Masse (8) eingehalten wird.1. A method for conveying fibrous, paste-like to low-viscosity masses with a regulated feed pump (3), characterized in that the feed pump (3) is regulated in a pressure storage container (4) through which the mass flows, and in that a constant gas pressure above the mass (8) contained therein is maintained.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Füllstand im Druckspeicherbehälter (4) durch Regelung der Förderpumpe (3) konstant gehalten wird.2. The method according to claim 1, characterized in that the fill level in the pressure storage container (4) is kept constant by regulating the feed pump (3).
3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein an den Auslass (3a) der Förderpumpe (3) angeschlossener Druckspeicherbehälter (4) mit mindestens einer Austragsleitung (5) für die Masse verbunden ist, und dass im Druckspeicherbehälter (4) ein Füllstandssensor (7) angeordnet ist, der über eine Signalleitung (9) mit einer Regeleinrichtung (10) der Förderpumpe (3) verbunden ist. 3. Device for carrying out the method according to claim 1 or 2, characterized in that a pressure storage container (4) connected to the outlet (3a) of the feed pump (3) is connected to at least one discharge line (5) for the mass, and in that Pressure storage tank (4) a level sensor (7) is arranged, which is connected via a signal line (9) to a control device (10) of the feed pump (3).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Druckspeicherbehälter (4) über eine Gasleitung (12) mit einer Gasdruck-Konstantregeleinrichtung (11) verbunden ist. 4. The device according to claim 3, characterized in that the pressure storage container (4) via a gas line (12) with a gas pressure constant control device (11) is connected.
PCT/EP2001/004944 2000-05-04 2001-05-03 Method and device for conveying fibrous materials WO2001083343A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU72389/01A AU7238901A (en) 2000-05-04 2001-05-03 Method and device for conveying fibrous materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10021699.4 2000-05-04
DE2000121699 DE10021699A1 (en) 2000-05-04 2000-05-04 Method and device for conveying fibrous masses

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WO2001083343A1 true WO2001083343A1 (en) 2001-11-08

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DE (1) DE10021699A1 (en)
WO (1) WO2001083343A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN104129748A (en) * 2014-06-15 2014-11-05 安徽皖峰蜂业集团有限公司 Honey automatic material supply device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111470460A (en) * 2020-05-05 2020-07-31 杭州屹升科技有限公司 Automatic filling device of liquid detergent for kitchen

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Publication number Priority date Publication date Assignee Title
US4025234A (en) * 1974-02-21 1977-05-24 Mecano Quimica S.A. Apparatus for obtaining artificial gravity in liquids
US4646796A (en) * 1985-01-24 1987-03-03 Marathon Engineers/Architects/Planners Liquid level sensing apparatus
US5224526A (en) * 1990-07-28 1993-07-06 Alfill Getranketechnik Gmbh Apparatus for admitting metered quantities of liquid into containers
WO1997045664A1 (en) * 1996-05-30 1997-12-04 Tetra Laval Holdings & Finance S.A. A fill system control apparatus

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US4025234A (en) * 1974-02-21 1977-05-24 Mecano Quimica S.A. Apparatus for obtaining artificial gravity in liquids
US4646796A (en) * 1985-01-24 1987-03-03 Marathon Engineers/Architects/Planners Liquid level sensing apparatus
US5224526A (en) * 1990-07-28 1993-07-06 Alfill Getranketechnik Gmbh Apparatus for admitting metered quantities of liquid into containers
WO1997045664A1 (en) * 1996-05-30 1997-12-04 Tetra Laval Holdings & Finance S.A. A fill system control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104129748A (en) * 2014-06-15 2014-11-05 安徽皖峰蜂业集团有限公司 Honey automatic material supply device

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DE10021699A1 (en) 2001-11-08

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