EP2125522B1 - Method and apparatus for compacting flowable solids - Google Patents

Method and apparatus for compacting flowable solids Download PDF

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Publication number
EP2125522B1
EP2125522B1 EP07785086A EP07785086A EP2125522B1 EP 2125522 B1 EP2125522 B1 EP 2125522B1 EP 07785086 A EP07785086 A EP 07785086A EP 07785086 A EP07785086 A EP 07785086A EP 2125522 B1 EP2125522 B1 EP 2125522B1
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EP
European Patent Office
Prior art keywords
solids
bagging
bag
chambers
evacuated
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
Application number
EP07785086A
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German (de)
French (fr)
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EP2125522A1 (en
Inventor
Peter Näf
Heinz Brand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
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Buehler AG
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Publication of EP2125522A1 publication Critical patent/EP2125522A1/en
Application granted granted Critical
Publication of EP2125522B1 publication Critical patent/EP2125522B1/en
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/26—Reducing volume of filled material by pneumatic means, e.g. suction
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled 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
    • B65B21/00—Packaging or unpacking of bottles
    • B65B21/02—Packaging or unpacking of bottles in or from preformed containers, e.g. crates
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags

Definitions

  • the invention relates to a method for compaction of flowable solids, in particular of powders, flours or similar substances, preferably by packing or bagging according to the preamble of patent claim 1.
  • the invention further relates to a device for compacting flowable solids.
  • a discharge device In a method for gravimetric dosing of bulk material according to DE-C-19645505 a discharge device is completely emptied, the amount of bulk material is determined and is taken into account as an aftercurrent. For this purpose, the discharge during the dosing is at least once empty dangers, the mass of the empty and the filled discharge is weighed and the difference forms the to be considered downstream.
  • a two-shaft discharge screw is known (EP-A-0131063 ) for such discharge devices whose spirals interlock. In the discharge screw, there is a negative pressure to avoid an impairment of the leadership.
  • the bulk material can be pressed or compacted, i. be vented without vacuuming, with an expansion after the removal of the pressing or compression element is possible.
  • WO-A-9007452 is a method for filling and evacuating large, provided with a neck or valve containers for z.
  • the vacuum can be adjusted by adding inert gases.
  • the invention has for its object to develop a method for compaction flowable solids, in particular of powders, flours or the like materials, preferably by packing or bagging, which allows storage and transport of the compacted solids with a small footprint and stable in storage.
  • the effort should be reduced and the process reliability increased.
  • the storage periods for the compacted solid can be very long.
  • Compaction e.g. of white flour leads to the extension of the shelf life (no oxygen supply) and to the reduction of the packaged volume.
  • shelf life no oxygen supply
  • the stackability of the packaging containers and their handling respectively. Palletability improved.
  • insect or mold growth and fat oxidation are slowed down.
  • the invention further relates to a device for compacting flowable solids, in particular of powders, flours or the like, preferably by packaging or bagging.
  • the device includes a storage chamber and a downstream this bag chamber, both of which are evacuated.
  • the vacuum formation should take place in the shortest possible time, possibly with pre-vacuum.
  • a filling of tubular bags can be carried out, wherein instead of a sack neck a bag forming device is used and the product is also pre-weighed.
  • the device according to the invention for sacks such as tubular bags can be integrated at individual stations as well as in carousels.
  • carousels it is also particularly advantageous to carry out a stepwise or pre-vacuuming. Instead of venting, a negative pressure of a previous station can be used.
  • the invention will be described below in an embodiment with reference to a drawing.
  • the drawing shows the device for compaction in a schematic representation.
  • the apparatus includes a storage chamber 1 for flour or the like and a baghouse 2 located underneath, wherein between the two chambers 1, 2, a slide 5 as a shut-off and a projecting into the bag chamber nozzle 6 are arranged. Both chambers are provided with a vacuum connection 4.
  • the storage chamber 1 also has a filling opening, which can be sealed with a lid 3.
  • a bag to be filled (not shown) is attached in the usual way.
  • the bag in the bag chamber 2, not shown, the bag a certain shape giving elements may be provided.
  • the nozzle 6 can be supplemented with a Sackverschliess shark.
  • the storage chamber 1 is preceded by a weighing and metering device.
  • the storage chamber 1 may alternatively contain product for the filling of several bags, so that the ventilation and venting can be reduced.
  • the storage chamber 1 is provided with a weighing and metering device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Basic Packing Technique (AREA)
  • Vacuum Packaging (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The invention relates to a method and an apparatus for compacting flowable solids, in particular powders, flours or similar materials, preferably by packing in packagings or sacks. In order to increase the process reliability, there is provision for evacuation of the solid and its sack packaging to take place in a likewise evacuated environment.

Description

Die Erfindung betrifft ein Verfahren zur Kompaktierung fliessfähiger Feststoffe, insbesondere von Pulvern, Mehlen oder dergleichen Stoffen, bevorzugt durch Abpacken oder Absacken nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for compaction of flowable solids, in particular of powders, flours or similar substances, preferably by packing or bagging according to the preamble of patent claim 1.

Die Erfindung betrifft weiterhin eine Vorrichtung zur Kompaktierung fliessfähiger Feststoffe.The invention further relates to a device for compacting flowable solids.

Bei einem Verfahren zur gravimetrischen Dosierung von Schüttgut gemäss DE-C-19645505 wird eine Austragvorrichtung vollständig entleert, wobei die Schüttgutmenge bestimmt wird und als Nachstrom berücksichtigt wird. Hierzu wird die Austragvorrichtung während des Dosierprozesses mindestens einmal Leergefahren, die Masse der leeren und der gefüllten Austragvorrichtung wird gewogen und die Differenz bildet den zu berücksichtigenden Nachstrom.In a method for gravimetric dosing of bulk material according to DE-C-19645505 a discharge device is completely emptied, the amount of bulk material is determined and is taken into account as an aftercurrent. For this purpose, the discharge during the dosing is at least once empty dangers, the mass of the empty and the filled discharge is weighed and the difference forms the to be considered downstream.

Bekannt ist eine Zweiwellenaustragschnecke ( EP-A-0131063 ) für solche Austragvorrichtungen, deren Wendeln ineinander greifen. In der Austragschnecke herrscht ein Unterdruck um eine Beeinträchtigung der Führung zu vermeiden.A two-shaft discharge screw is known ( EP-A-0131063 ) for such discharge devices whose spirals interlock. In the discharge screw, there is a negative pressure to avoid an impairment of the leadership.

Das Schüttgut kann durch verpressen oder verdichten, d.h. ohne Vakuumierung entlüftet werden, wobei nach der Entfernung des Press- oder Verdichtungselementes eine Expansion möglich ist.The bulk material can be pressed or compacted, i. be vented without vacuuming, with an expansion after the removal of the pressing or compression element is possible.

Bei einem Kompaktierungsverfahren für fliessfähige Schüttgüter gemäss EP-A-1561685 wird ein Kompaktierungsraum mit dem Schüttgut gefüllt und der Kompaktierungsraum wird nachfolgend verkleinert. Anschliessend wird der Kompaktierungsraum gasdicht verschlossen und nachfolgend wieder vergrössert um einen Unterdruck zu erzeugen. Danach fliesst das kompaktierte Schüttgut durch eine Austragsöffnung aus.In a compaction process for flowable bulk materials according to EP-A-1561685 a Kompaktierungsraum is filled with the bulk material and the Kompaktierungsraum is subsequently reduced in size. Subsequently, the compaction space is sealed gas-tight and subsequently enlarged again to produce a negative pressure. Thereafter, the compacted bulk material flows out through a discharge opening.

In der WO-A-9007452 ist ein Verfahren zum Füllen und Evakuieren grosser, mit einem Hals oder Ventil versehener Behältnisse für z. B. hygroskopische Produkte offenbart, bei dem die Behältnisse in einer evakuierten Kammer gefüllt werden. Das Vakuum kann durch Zugabe inerter Gase angepasst werden.In the WO-A-9007452 is a method for filling and evacuating large, provided with a neck or valve containers for z. As hygroscopic products disclosed in which the containers are filled in an evacuated chamber. The vacuum can be adjusted by adding inert gases.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Kompaktierung fliessfähiger Feststoffe, insbesondere von Pulvern, Mehlen oder dergleichen Stoffen, bevorzugt durch Abpacken oder Absacken zu entwickeln, welches Lagerung und Transport der kompaktierten Feststoffe mit geringem Platzbedarf und lagestabil ermöglicht. Dabei sollen der Aufwand reduziert und die Prozesssicherheit erhöht werden.The invention has for its object to develop a method for compaction flowable solids, in particular of powders, flours or the like materials, preferably by packing or bagging, which allows storage and transport of the compacted solids with a small footprint and stable in storage. The effort should be reduced and the process reliability increased.

Die Lagerungszeiträume für den kompaktierten Feststoff können dabei sehr lang sein.The storage periods for the compacted solid can be very long.

Die Aufgabe ist mit den Merkmalen des Patentanspruchs 1 gelöst. Da sowohl eine Vorratskammer für ein Schüttgut als auch eine Sackkammer vor oder während des Befüllens evakuiert werden, kann sicher und hochgradig kompaktiert werden, ohne die Fliesseigenschaften des Schüttgutes beim Absacken zu beeinträchtigen. Die Sackfüllung erfolgt faktisch wie unter "Normatbedingungen".The object is solved with the features of claim 1. Since both a storage chamber for a bulk material and a baghouse before or during filling are evacuated, can be safely and highly compacted without affecting the flow properties of the bulk material during sagging. The bag filling is in fact as under "Normatbedingungen".

Bevorzugte Ausführungsformen sind in Unteransprüchen offenbart.Preferred embodiments are disclosed in subclaims.

Kompaktierung, z.B. von Weissmehl führt zur Verlängerung der Haltbarkeit (keine Sauerstoffzufuhr) und zur Reduktion des verpackten Volumens. Zudem wird die Stapelfähigkeit der Verpackungsbehältnisse und deren Handhabbarkeit resp. Palettierbarkeit verbessert. Weiterhin werden Insekten- oder Schimmelpilzwachstum sowie die Fettoxidation gebremst.Compaction, e.g. of white flour leads to the extension of the shelf life (no oxygen supply) and to the reduction of the packaged volume. In addition, the stackability of the packaging containers and their handling respectively. Palletability improved. Furthermore, insect or mold growth and fat oxidation are slowed down.

Die Erfindung betrifft weiterhin eine Vorrichtung zur Kompaktierung fliessfähiger Feststoffe, insbesondere von Pulvern, Mehlen oder dergleichen Stoffen, bevorzugt durch Abpacken oder Absacken. Die Vorrichtung beinhaltet eine Vorratskammer und eine diesem nachgeordnete Sackkammer, die beide evakuierbar sind.The invention further relates to a device for compacting flowable solids, in particular of powders, flours or the like, preferably by packaging or bagging. The device includes a storage chamber and a downstream this bag chamber, both of which are evacuated.

Die Vakuumbildung soll in möglichst kurzer Zeit erfolgen, ggf. mit Vorvakuumierung.The vacuum formation should take place in the shortest possible time, possibly with pre-vacuum.

Weiterhin kann auch eine Befüllung von Schlauchbeuteln erfolgen, wobei anstelle eines Sackstutzens eine Sackformeinrichtung verwendet wird und das Produkt zudem vorverwogen wird.Furthermore, a filling of tubular bags can be carried out, wherein instead of a sack neck a bag forming device is used and the product is also pre-weighed.

Die erfindungsgemässe Vorrichtung für Säcke wie Schlauchbeutel kann an Einzelstationen wie auch in Karussells integriert sein. In Karussells kann zudem besonders vorteilhaft eine stufenweise oder Vorvakuumierung erfolgen. Statt zu entlüften, kann ein Unterdruck einer vorangehenden Station genutzt werden.The device according to the invention for sacks such as tubular bags can be integrated at individual stations as well as in carousels. In carousels, it is also particularly advantageous to carry out a stepwise or pre-vacuuming. Instead of venting, a negative pressure of a previous station can be used.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel anhand einer Zeichnung näher beschrieben. Die Zeichnung zeigt die Vorrichtung zur Kompaktierung in einer Prinzipdarstellung.The invention will be described below in an embodiment with reference to a drawing. The drawing shows the device for compaction in a schematic representation.

Die Vorrichtung beinhaltet eine Vorratskammer 1 für Mehl oder dergleichen und eine darunter befindliche Sackkammer 2, wobei zwischen beiden Kammern 1, 2 ein Schieber 5 als Absperrorgan und ein in die Sackkammer ragender Stutzen 6 angeordnet sind. Beide Kammern sind mit einem Vakuumanschluss 4 versehen. Die Vorratskammer 1 verfügt zudem über eine Füllöffnung, die mit einem Deckel 3 dicht verschlossen werden kann.The apparatus includes a storage chamber 1 for flour or the like and a baghouse 2 located underneath, wherein between the two chambers 1, 2, a slide 5 as a shut-off and a projecting into the bag chamber nozzle 6 are arranged. Both chambers are provided with a vacuum connection 4. The storage chamber 1 also has a filling opening, which can be sealed with a lid 3.

Am Stutzen 6 (Sackstutzen) wird ein zu befüllender Sack (nicht dargestellt) in üblicher Weise angehangen.At the nozzle 6 (sack neck) a bag to be filled (not shown) is attached in the usual way.

Da ein anliegender Unterdruck bereits beide Kammern zusammenhält, sind grundsätzlich keine Spannelemente erforderlich. Zur Sicherheit können solche jedoch angeordnet sein.Since an adjacent negative pressure already holds both chambers together, in principle no clamping elements are required. For safety, however, such may be arranged.

Zusätzlich können in der Sackkammer 2 nicht dargestellte, dem Sack eine bestimmte Form gebende Elemente vorgesehen sein.In addition, in the bag chamber 2, not shown, the bag a certain shape giving elements may be provided.

Nach Füllung der Vorratskammer 1 mit Mehl für die Befüllung eines Sackes und Bereitstellung eines Sackes in der Sackkammer 2 resp. am Stutzen 6 werden beide Kammern 1, 2 über den Vakuumanschluss 4 gleichermassen bei geschlossenem Deckel 3 und Schieber 5 evakuiert, bis ein ausreichender Unterdruck erreicht ist. Anschliessend werden die Klemmbacken am Stutzen 6 geschlossen (der Sack ist angehangen) und der Schieber wird bis zur Erreichung der gewünschten Sackfüllung geöffnet. Anschliessend wird der Schieber geschlossen und der Sack wird luftdicht verschlossen. Nachfolgend erfolgt die Belüftung beider Kammern 1, 2 auf Normaldruck, lösen der Klemmbacken am Stutzen und Ausschieben des Sackes durch eine nicht dargestellte Öffnung aus der Sackkammer 2.After filling the pantry 1 with flour for filling a bag and providing a bag in the bag chamber 2, respectively. at the nozzle 6 both chambers 1, 2 via the vacuum port 4 equally with the lid closed 3 and Slide 5 evacuated until a sufficient negative pressure is reached. Subsequently, the jaws are closed at the nozzle 6 (the bag is attached) and the slide is opened until the desired bag filling. Subsequently, the slide is closed and the bag is sealed airtight. Subsequently, the ventilation of both chambers 1, 2 to normal pressure, solve the jaws on the nozzle and pushing the bag through an opening, not shown, from the bag chamber. 2

Der Stutzen 6 kann mit einer Sackverschliesseinrichtung ergänzt werden. Der Vorratskammer 1 ist eine Wäge- und Dosiereinrichtung vorgeschaltet.The nozzle 6 can be supplemented with a Sackverschliesseinrichtung. The storage chamber 1 is preceded by a weighing and metering device.

Bei dicht schliessendem Schieber 5 kann die Vorratskammer 1 alternativ auch Produkt für die Füllung mehrerer Säcke enthalten, so dass der Be- und Entlüftungsaufwand reduziert werden kann. Hierzu ist dann die Vorratskammer 1 mit einer Wäge- und Dosiereinrichtung versehen.When tightly closing slide 5, the storage chamber 1 may alternatively contain product for the filling of several bags, so that the ventilation and venting can be reduced. For this purpose, the storage chamber 1 is provided with a weighing and metering device.

Bezugszeichenreference numeral

11
Vorratskammerstoreroom
22
Sackkammerbaghouse
33
Deckelcover
44
Vakuumanschlussvacuum connection
55
Schieberpusher
66
StutzenSupport

Claims (3)

  1. Method for compacting flowable solids by evacuating the solids and bagging and/or packaging the solids in an evacuated container, characterized in that the evacuation of the solids and their bagging are performed in a similarly evacuated environment, wherein the evacuation of the solids and their bagging is performed in separate chambers that are connected air-tight to one another.
  2. Apparatus for compacting flowable solids by evacuating the solids and bagging and/or packaging the solids in an evacuated container, characterized in that the apparatus has a storage chamber (1) for the solids and a downstream sack chamber (2) for the bagging, and both chambers (1, 2) can be evacuated and connected air-tight relative to one another.
  3. Apparatus according to claim 2, characterized in that a tightly sealing shutoff device is arranged between both chambers (1, 2).
EP07785086A 2006-09-01 2007-08-10 Method and apparatus for compacting flowable solids Not-in-force EP2125522B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006041297A DE102006041297A1 (en) 2006-09-01 2006-09-01 Process and apparatus for compaction of flowable solids
PCT/CH2007/000391 WO2008025175A1 (en) 2006-09-01 2007-08-10 Method and apparatus for compacting flowable solids

Publications (2)

Publication Number Publication Date
EP2125522A1 EP2125522A1 (en) 2009-12-02
EP2125522B1 true EP2125522B1 (en) 2011-01-05

Family

ID=38777971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07785086A Not-in-force EP2125522B1 (en) 2006-09-01 2007-08-10 Method and apparatus for compacting flowable solids

Country Status (10)

Country Link
US (1) US20100170198A1 (en)
EP (1) EP2125522B1 (en)
JP (1) JP2010501429A (en)
KR (1) KR20090048643A (en)
CN (1) CN101522526B (en)
AT (1) ATE494217T1 (en)
DE (2) DE102006041297A1 (en)
ES (1) ES2358616T3 (en)
RU (1) RU2438942C2 (en)
WO (1) WO2008025175A1 (en)

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Publication number Priority date Publication date Assignee Title
EP2436602A1 (en) 2010-10-01 2012-04-04 Bühler AG Method and device for dosing a bulk good
CN106114950B (en) * 2016-07-18 2019-01-15 湖州师范学院 A kind of fragile article express delivery packing device
CN106115008B (en) * 2016-07-18 2019-01-11 湖州师范学院 A kind of packing device of high-precision metal product
CN106115009B (en) * 2016-07-18 2019-01-15 湖州师范学院 A kind of fragile article packing device
CN109496266B (en) * 2016-07-27 2021-03-09 布勒股份公司 Dosing and weighing device and method for determining the weight of a product in a dosing and weighing device
IT201600122873A1 (en) * 2016-12-02 2018-06-02 Ica Spa DOSING AND CUTTING SYSTEM FOR COMPACT POWDERS
CN109911341A (en) * 2017-12-13 2019-06-21 邹万清 A kind of material packing device

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Publication number Publication date
US20100170198A1 (en) 2010-07-08
CN101522526A (en) 2009-09-02
DE502007006219D1 (en) 2011-02-17
WO2008025175A1 (en) 2008-03-06
ATE494217T1 (en) 2011-01-15
RU2438942C2 (en) 2012-01-10
DE102006041297A1 (en) 2008-03-06
RU2009111857A (en) 2010-10-10
ES2358616T3 (en) 2011-05-12
KR20090048643A (en) 2009-05-14
CN101522526B (en) 2011-03-02
JP2010501429A (en) 2010-01-21
EP2125522A1 (en) 2009-12-02

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