EP0982238B1 - Conteneur souple pour des produits solides hautement dispersés et aérés et procédé pour le remplissage du produit - Google Patents

Conteneur souple pour des produits solides hautement dispersés et aérés et procédé pour le remplissage du produit Download PDF

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Publication number
EP0982238B1
EP0982238B1 EP99115071A EP99115071A EP0982238B1 EP 0982238 B1 EP0982238 B1 EP 0982238B1 EP 99115071 A EP99115071 A EP 99115071A EP 99115071 A EP99115071 A EP 99115071A EP 0982238 B1 EP0982238 B1 EP 0982238B1
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EP
European Patent Office
Prior art keywords
filling
air
vacuum
product
drum
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.)
Expired - Lifetime
Application number
EP99115071A
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German (de)
English (en)
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EP0982238A1 (fr
Inventor
Helmut Maginot
Armin Grossmann
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Wacker Chemie AG
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Wacker Chemie AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/1618—Flexible intermediate bulk containers [FIBC] double-walled or with linings

Definitions

  • the invention relates to large containers for highly disperse, air-containing solids and a process for their Filling.
  • HDK is due to its spatial, three-dimensional branch structure a product that has an extremely low tamped density from about 40 to 50 g / l. Furthermore, between the Company bulk density and the tamped density value according to DIN ISO 787/11 to distinguish. Due to its fine structure, HDK is in able to bind a lot of gas, for example air, which the product in a quasi-fluid state with about 20 to 30 g / l is added. This removable air portion escapes voluntarily only very slowly and not completely. In this fluid state, the dust problem is also increased, since the The agility of the HDK agglomeration rate is extremely high.
  • gas for example air
  • Free-flowing, highly disperse and high-air solids extremely low bulk density, such as HDK therefore mainly with the help of an outside one Vacuum placed in air-permeable bags.
  • the filling time increases with increasing air content.
  • the sacks consist of 3 to 4 layers of paper, with an additional one Position of the paper to block ingress of moisture can be laminated with polyethylene (PE).
  • PE polyethylene
  • To the one you want Air permeability when filling is all Microperforated layers. This has the advantage that the good when inserted into the sack is compressed and its Filling density increases compared to the natural bulk density.
  • From EP-A 0 773 159 (US-A 5682929) is a method and a Container for repeated filling and emptying with loose material with low bulk density known.
  • the one in it tissue container described, the so-called big bag or Super bag has a filling capacity of 90 to 350 kg.
  • the tissue container consists of flexible, air-permeable Fabric, preferably a single or multi-layer plastic fabric, with at least one access opening. Filling this Tissue container is also done using Vacuum filling systems.
  • the tissue container is included Vacuum applied and the good through the open Access opening sucked into the tissue container until a predetermined fill weight is reached. The gas comes out distributed over the entire surface of the tissue container.
  • the goods are, similar to when filling in Sacks, reversibly compacted without losing its structure gets destroyed.
  • the moisture barrier property is one of the main requirements for the wide use of these flexible large containers with everyone HDK types and areas of application.
  • the invention relates to a flexible container, thereby characterized in that it consists of at least two one above the other lying layers, with an inner layer uncoated, air-permeable fabric, an outer Layer is dustproof and moisture-proof coated and this Layers with each other through a special seam design are connected that the venting of the container only by this is possible.
  • the highly disperse, high-air content is pre-bound filling using a method according to the invention pre-vented. This pre-ventilation has the consequence that the Operating bulk density of the product before it is filled into the flexible container according to the invention is reduced without thereby a relevant influence on its spatial structure to take.
  • This process is particularly suitable for packaging highly disperse high-air materials with extreme low bulk density of 20 to 150 g / l, such as the various modifications of the HDK.
  • Particularly preferred are modifications of HDK that slightly damp out in their surroundings.
  • the HDK is still airy. Under these conditions are the operating bulk density and the Degree of agglomeration low. Through the pre-venting step becomes the operating bulk density and thus the degree of agglomeration increased on the way from the storage silo to the filling template. In The filling process of the container can be done in this state shorten significantly, since not the entire ventilation of the Filling material during filling via the invention Seams of the container must be made.
  • air-permeable partitions are used made of porous material, preferably sintered metal, fabric or Sintered plastics, gas from an applied vacuum Aspirated product.
  • This suction process creates one Product layer on the filter medium that the suction process with increasing layer thickness or product thickness to a halt would bring. To avoid this, this product layer replaced by pressure pulses.
  • the pressure impulses to release This layer carries significantly less gas into the system a than is suctioned off, so that the overall gas balance becomes one Ventilation leads.
  • FIG. 1 shows the schematic representation of a device for pre-ventilation.
  • the suction surface in the invention Process is divided into different segments so that one targeted venting can be set.
  • About the Vacuum valve (3) is the gas from the silo bottom and the Pipe area over air-permeable partitions (6 and 7) sucked off porous material.
  • the pulse cleaning takes place via the compressed air reservoirs (1) by means of the pulse cleaning valves (2). Cleaning with a pressure pulse can be done under vacuum or under normal pressure. In the latter case, the vacuum valve (3) is closed and after reaching atmospheric pressure Cleaning.
  • the pre-vented material is then in the flexible large container according to the invention by means of known Vacuum filling system filled.
  • the containers consist of at least two layers, preferably of flexible fabric.
  • An inner layer (8) consists of an uncoated, air-permeable fabric.
  • An outer layer (9) is coated in a dustproof and moisture-blocking manner, preferably with polypropylene and / or polyethylene. In contrast to the known large containers, in which the ventilation takes place over the entire surface during the filling process, in the containers according to the invention this can only take place via the special seam design (10) of the different layers.
  • the Pre-vented HDK on an internal one during vacuum filling deposited uncoated layer (8) When filling the container according to the invention, the Pre-vented HDK on an internal one during vacuum filling deposited uncoated layer (8).
  • increase in the degree of agglomeration by the Pre-venting and the low differential pressure is a possible dust penetration into the space between the uncoated, breathable layer and an outer, coated and thus dense layer (9), low.
  • the aspirated gas is now between an inner and outer Layer passed to the special seams and vacuumed there.
  • the layers of the flexible container are so together connected that one between each layer Strips made of air-permeable, filter-like material (11) is incorporated. Through these incorporated stripes, can on the one hand the gas is sucked off and on the other hand Dust particles held back by an inner uncoated layer (8) could escape.
  • a filter strip can all known flexible filter materials, such as for example, felt strips made of natural or plastic fibers, Polyester or Teflon model felts, paper filters and / or Polypropylene wicks are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Conteneur souple de grande capacité pour des solides hautement dispersés et présentant une haute teneur en air, destiné au remplissage répété et à la vidange répétée par des dispositifs de soutirage sous vide, caractérisé en ce qu'il est constitué d'au moins deux couches superposées, une couche interne (8) étant constituée d'un tissu non revêtu, perméable à l'air, une couche externe (9) étant revêtue de manière à rendre étanche à la poussière et à arrêter l'humidité et ces couches étant reliées l'une à l'autre par une réalisation de couture (10) spéciale de telle manière que la désaération du conteneur ne soit possible qu'à travers celle-ci.
  2. Conteneur souple de grande capacité selon la revendication 1, caractérisé en ce qu'une couche externe (9) est revêtue de polyéthylène ou de polypropylène.
  3. Conteneur souple de grande capacité selon les revendications 1 et 2, caractérisé en ce qu'on a incorporé dans la réalisation spéciale de la couture (10) un matériau filtrant (11) perméable à l'air, retenant la poussière, de préférence une bande en feutre ou une mèche en polypropylène.
  4. Procédé pour le remplissage de conteneurs souples de grande capacité selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le matériau de remplissage est préalablement désaéré avant le soutirage et qu'on procède pendant le remplissage à une désaération supplémentaire via les coutures du conteneur.
  5. Procédé selon la revendication 4, caractérisé en ce que la désaération préalable est réalisée par vide via des parois de séparation perméables à l'air en matériau poreux (6 et 7), de préférence en métal fritté, en tissu ou en une matière synthétique frittée.
  6. Procédé selon les revendications 4 et 5, caractérisé en ce que le nettoyage des parois de séparation poreuses (6 et 7) et le transport du produit qui y est lié sont réalisés par aspiration et jet dans les deux sens et à intervalles de la couche de produit compactée, de préférence au moyen d'air comprimé.
  7. Procédé selon les revendications 4 à 6, caractérisé en ce que le réglage à intervalles du vide et de l'air comprimé est réalisé au moyen de soupapes (2 et 3) commandées par ordinateur.
  8. Procédé selon les revendications 4 à 7, caractérisé en ce que le produit de remplissage présente une densité apparente de 20 à 150 g/l et en ce que le poids au remplissage est de 90 à 350 kg.
  9. Procédé selon les revendications 4 à 8, caractérisé en ce que le produit de remplissage est de la silice obtenu par voie pyrogène ou une modification de celle-ci.
EP99115071A 1998-08-27 1999-08-05 Conteneur souple pour des produits solides hautement dispersés et aérés et procédé pour le remplissage du produit Expired - Lifetime EP0982238B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19839106 1998-08-27
DE19839106A DE19839106A1 (de) 1998-08-27 1998-08-27 Großgebinde für hochdisperse, hochlufthaltige Feststoffe und ein Verfahren zu deren Befüllung

Publications (2)

Publication Number Publication Date
EP0982238A1 EP0982238A1 (fr) 2000-03-01
EP0982238B1 true EP0982238B1 (fr) 2001-11-07

Family

ID=7878977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115071A Expired - Lifetime EP0982238B1 (fr) 1998-08-27 1999-08-05 Conteneur souple pour des produits solides hautement dispersés et aérés et procédé pour le remplissage du produit

Country Status (4)

Country Link
US (1) US6199602B1 (fr)
EP (1) EP0982238B1 (fr)
JP (1) JP3325862B2 (fr)
DE (2) DE19839106A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123885A1 (de) * 2001-05-16 2002-12-12 Bayer Ag Verfahren zum Abfüllen von feuchtem, klebrigem Schüttgut
WO2003006314A1 (fr) 2001-07-11 2003-01-23 Degussa Ag Appareil et procede de remplissage de contenants avec une matiere granulaire ou pulverulente
US6860301B2 (en) 2001-07-11 2005-03-01 Degussa Ag Apparatus and process for filling large containers of different sizes and shapes
DE102004003364A1 (de) * 2004-01-22 2005-08-11 Wacker-Chemie Gmbh Vorrichtung zum Transport hochdisperser Pulver und Verfahren zu ihrer Befüllung und Entleerung
ITRM20040472A1 (it) * 2004-10-01 2005-01-01 Stelliferi & Itavex S P A Procedimento per il confezionamento di prodotti, ad esempio per prodotti alimentari, relativa confezione e corredo di realizzazione.
DE202006019054U1 (de) * 2006-12-18 2008-04-30 Bischof + Klein Gmbh & Co. Kg Verpackungsbehältnis in Beutel- oder Sackform
US8297063B2 (en) * 2008-08-12 2012-10-30 General Electric Company Method for servicing a refrigeration system
DE102009008984B4 (de) * 2009-02-14 2016-09-29 Empac GmbH Flexibler Schüttgutbehälter
DE102009057246A1 (de) * 2009-12-08 2011-06-09 Haver & Boecker Ohg Sack mit Membrane
WO2016022792A2 (fr) * 2014-08-07 2016-02-11 Plank Road Technologies, Llc Système et procédé permettant de prévenir et de maîtriser la combustion et l'inflammabilité ou l'oxydation de matériaux pendant leur stockage ou leur transport
KR101892218B1 (ko) * 2017-02-16 2018-08-28 영우산업 주식회사 컨테이너백
AT526155B1 (de) * 2022-10-13 2023-12-15 Div Trades D O O Großvolumiger Verpackungsbehälter

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US3260285A (en) * 1963-08-05 1966-07-12 Clarence W Vogt Apparatus and method for filling containers for pulverulent material
CA962021A (en) * 1970-05-21 1975-02-04 Robert W. Gore Porous products and process therefor
US4229193A (en) * 1978-09-19 1980-10-21 Shop-Vac Corporation Vacuum cleaner and sealed filter bag assembly therefor particularly useful for filtering asbestos fibers from air
US4735308A (en) * 1985-04-17 1988-04-05 Barner Juliane S Compound food storage bag
US4946291A (en) * 1987-01-02 1990-08-07 Schnaars Daniel R Semi-bulk with liner
US4996848A (en) * 1989-09-28 1991-03-05 Whirlpool Corporation Method and apparatus for recovering refrigerants from home refrigeration systems
DE4009369A1 (de) 1990-03-23 1991-09-26 Celcommerz High Chem Produkte Sackfoermiges verpackungsmittel
GB9218970D0 (en) * 1992-09-08 1992-10-21 Mulox Ibc Ltd Container bag
DE9307217U1 (de) * 1993-05-12 1994-09-22 Odenwald Chemie Gmbh Sterilisationsdoppelsack für infektiösen Müll
KR100193465B1 (ko) * 1993-12-28 1999-06-15 가타야마 도루 포장용구
US5501525A (en) * 1994-02-24 1996-03-26 Winpak Films, Inc. Bone-guard bag
US5647881A (en) * 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
DE19526743A1 (de) * 1995-07-21 1997-01-23 Wacker Chemie Gmbh Verfahren zum Befüllen und Entleeren eines Behälters
JP3078730B2 (ja) * 1995-08-24 2000-08-21 ホソカワミクロン株式会社 減容機
EP0767105B1 (fr) * 1995-10-02 1999-04-14 Korsnäs Wilhelmstal GmbH Papiersackfabriken Sac à valve à fond croisé ventilé

Also Published As

Publication number Publication date
EP0982238A1 (fr) 2000-03-01
DE19839106A1 (de) 2000-03-09
DE59900398D1 (de) 2001-12-13
US6199602B1 (en) 2001-03-13
JP3325862B2 (ja) 2002-09-17
JP2000072154A (ja) 2000-03-07

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