WO1996034812A1 - Conteneur a pulverulents souple - Google Patents

Conteneur a pulverulents souple Download PDF

Info

Publication number
WO1996034812A1
WO1996034812A1 PCT/FI1995/000238 FI9500238W WO9634812A1 WO 1996034812 A1 WO1996034812 A1 WO 1996034812A1 FI 9500238 W FI9500238 W FI 9500238W WO 9634812 A1 WO9634812 A1 WO 9634812A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
discharge tube
base
mantle
tube
Prior art date
Application number
PCT/FI1995/000238
Other languages
English (en)
Inventor
Pekka O. MÄKINEN
Simo Luojus
Original Assignee
Kemira Pigments Oy
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 Kemira Pigments Oy filed Critical Kemira Pigments Oy
Priority to AU23467/95A priority Critical patent/AU2346795A/en
Priority to PCT/FI1995/000238 priority patent/WO1996034812A1/fr
Publication of WO1996034812A1 publication Critical patent/WO1996034812A1/fr

Links

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]
    • B65D88/1668—Flexible intermediate bulk containers [FIBC] closures for top or bottom openings
    • 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]

Definitions

  • This invention relates to a flexible bulk container intended as a package for finely- divided solids, comprising a mantle in the longitudinal direction of the container and a base tapered obliquely towards the mantle, which ends in an openable discharge tube.
  • Finely-divided pulverous products have conventionally been packed in approx. 25 to 50 kg paper or fabric containers, which can be manipulated individually by hand and conveyed onto pallets in stacks.
  • a bulk container intended especially as a package for pigmentary titanium dioxide has been described in GB patent application 2 029 798.
  • This container made for instance of polypropylene fabric, is essentially cylindrical in shape and comprises a circular cover, a conically tapered base, a cylindrical filling tube in the centre of the cover and a cylindrical discharge tube in the centre of the base.
  • the container further comprises filling and discharge tube closure means for releasing and sealing the container, and also handles in the cover for lifting and moving it.
  • Standing on a flat base the conical base and the discharge tube of a filled container sealed at the bottom will flatten out, so that the container will have an essentially flat bottom. When the container is being lifted, the bottom will resume its conical shape under the weight of the contents.
  • the container is emptied by fitting its discharge tube, with the container suspended by its lugs, in the input opening of a silo or a similar container placed under the bulk container for receiving material, and by releasing the tie strings of the discharge tube, so that the contents of the container will flow into the container.
  • the purpose of the present invention is to provide a large-sized bulk container provided with a tapered base and a discharge tube in this, which is emptied with greater ease and safety than before.
  • the container in accordance with the invention is characterised in that its tapered base is tilted to the side, so that at least one side of the eccentric discharge tube forming its extension forms a linear extension of the mantle surface of the container.
  • the invention has the advantage of the eccentrically placed discharge tube being openable from the side of the container, in other words, the user no longer has to bend down under the container to open it. For the user, this is an improvement both in terms of ergonomics and work safety.
  • preliminary tests have shown a second major advantage of the invention, i.e. that the container in accordance with the invention is more thoroughly emptied than conventional containers. It is obvious that the linear surface formed jointly by the mantle and the side of the discharge tube provides an impetus for the material within the container and reduces the flow resistance caused by the container and the discharge tube.
  • the container mantle is rectangular in cross-section, comprising four lateral walls, at least one of these extending at its tapered lower end into the discharge tube and continuing linearly as one of the side walls of the discharge tube.
  • the discharge tube is also preferably rectangular in cross-section, the container base consisting of three inclined surfaces continuing the side walls of the container and tapered towards the tube. The angle of inclination of these inclined surfaces affects the discharge speed in the container, in practical operation the angle may vary in the range of approx. 30 to 70°.
  • figure 1 shows a large-sized bulk container for packing finely-divided material in accordance with the invention, viewed obliquely from the front
  • figure 2 shows the container of figure 1 viewed obliquely from behind
  • figure 3 shows the container of figure 1 filled and sealed at the base
  • figures 4 and 5 show a schematic lateral and front view of the container of figure 1
  • figure 6 is a cross-section VI- VI of the container of figure 4
  • figure 7 is a lateral view similar to figure 4 of a second large-sized bulk container in accordance with the invention
  • figure 8 is a cross-section of the container of figure 7.
  • Figures 1 to 6 illustrate a large-sized bulk container 1 made of flexible plastic fabric, e.g. polypropylene fabric, in accordance with the invention, whose size may vary in the range of approx. 0.5 to 2.0 m ⁇ and which is suitable as a package for a finely-divided pigment, such as titanium dioxide, for instance.
  • the cross-section of the container 1 is square as in figure 6, and the container comprises a cover 2, four side walls 3 to 6, and a tapered base consisting of three inclined surfaces 7 to 9.
  • the container 1 further comprises a cylindrical filler tube 10 placed at the centre of the cover 2 and extending into the sack, and a discharge tube 11, square in cross-section and forming an extension of the container base 7 to 9 and extending out of the container.
  • Both the filler tube 10 and the discharge tube 11 are provided with tie strings 12, 13.
  • tie strings 12, 13 At the corners of the container cover 2 lifting lugs 14 are provided, and the rear side 5 of the container extends at its lower end as a base flap 15, which acts as a shield for the filled container.
  • strings 16 At the edge of the base flap 15 there are strings 16, which can be tied to matching strings 17 on the front side 3 of the container (see figure 3).
  • the base flap is not represented in the schematic figures 4 and 5.
  • the tapered base 7 to 9 of the containers in figures 1 to 6 is designed to be inclined towards the container side 3, so that one of the sides 18 of the discharge tube 11 forms a direct linear extension of the side wall 3 of the container.
  • the said side wall 3 comprises at its lower end a part 19 tapered symmetrically towards the inclination of the inclined surfaces 7, 9 of the base, this end part extending further downwards as the side wall 18 of the discharge tube.
  • the inclined surfaces 7, 9 of the base adjacent to the said extended side wall 3, 19 of the container has a larger angle of inclination B of approx. 60°, marked in the figure 5, and the third inclined surface 8 of the base on the rear side of the container has a smaller angle of inclination A, of approx. 40 °, shown in figure 4. These angles allow the discharge rate in the container to be controlled.
  • the discharge tube 11 is sealed by tightening it with the tie strings 13.
  • the container base 7 to 9 can be flattened and protected with a base flap 15 (see figure 3) turned up against it and attached with strings 16, 17.
  • the container is filled through the filler tube 10 with the material to be packaged, after which the filler tube is sealed with the string 12.
  • the filled container can now be moved with a lifter by gripping the lugs 14.
  • the tie strings 16, 17 in the base flap 15 are untied, and as the container is subsequently being lifted, its base 7 to 9 will be expelled under the weight of the material, resuming its original shape.
  • the discharge tube 1 1 is fitted in the filling opening of a container for receiving material, such as a silo, and the suspended bulk container is emptied by releasing the tie strings 13 of the discharge tube on the linearly extending side 3, 18 of the container.
  • the strings may be provided with a loop, and in that case the discharge tube may be expanded and tightened by pulling a string passed through the loop, thus allowing control of the material flow during emptying.
  • Figures 7 and 8 show a version of the large-sized bulk container of the invention corresponding to figures 4 and 6, in which the mantle 20 of the container has a circular cross-section.
  • the container base consists of a curved surface 21 inclined towards the container side and extending into the eccentrically placed discharge tube 11 on the container side.
  • the discharge tube 11 is defined by two curved sides, one 18 of which being designed as a direct linear extension of the cylindrical surface 20 of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

Cette invention concerne un conteneur (1) à pulvérulents, souple, de grande capacité, dont la taille se situe approximativement entre 0,5 et 2,0 m3, qui est destiné à être utilisé en tant qu'emballage pour des matières solides finement divisées telles que des pigments en poudre par exemple. Le conteneur comprend une paroi extérieure longitudinale (3-4) à section transversale rectangulaire par exemple, et une base (7-9) qui est conique obliquement vers la paroi extérieure et qui se termine dans un tube de décharge (11) lui-même libérable au moyen d'un cordon d'attache (13). Dans cette invention, la base, qui peut être formée de surfaces inclinées (7-9) prolongeant les parois latérales du conteneur, est inclinée de telle sorte que le tube de décharge (11) adopte une position excentrique et qu'au moins un des côtés (18) du tube forme un prolongement linéaire de la surface (3) de la paroi extérieure du conteneur. La base (7-9) du conteneur rempli peut être aplatie et protégée par un rabat de base (15) relevé contre cette dernière. Lorsque le rabat de base (15) est relevé, la base du conteneur qui est soulevée par ses oreilles (14) s'élargit sous le poids de la matière contenue dans le conteneur et reprend sa forme initiale décrite précédemment, ceci permettant ensuite de placer le tube de décharge (11) dans l'ouverture associée du conteneur pour recevoir la matière en vue de remplir ledit conteneur à pulvérulents.
PCT/FI1995/000238 1995-05-04 1995-05-04 Conteneur a pulverulents souple WO1996034812A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU23467/95A AU2346795A (en) 1995-05-04 1995-05-04 Flexible bulk container
PCT/FI1995/000238 WO1996034812A1 (fr) 1995-05-04 1995-05-04 Conteneur a pulverulents souple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI1995/000238 WO1996034812A1 (fr) 1995-05-04 1995-05-04 Conteneur a pulverulents souple

Publications (1)

Publication Number Publication Date
WO1996034812A1 true WO1996034812A1 (fr) 1996-11-07

Family

ID=8556617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000238 WO1996034812A1 (fr) 1995-05-04 1995-05-04 Conteneur a pulverulents souple

Country Status (2)

Country Link
AU (1) AU2346795A (fr)
WO (1) WO1996034812A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1289875A1 (fr) * 2000-05-08 2003-03-12 Burleigh M. Hutchins Reservoir servant a distribuer des materiaux secs coulants
EP1332096A1 (fr) * 2000-10-20 2003-08-06 Acadia Industries, Inc. Sac en vrac a ouverture de decharge eloignee
GB2434143B (en) * 2006-01-17 2008-01-30 Structure Flex Ltd Flexible bulk container flap for discharge spout
GB2442149A (en) * 2006-01-17 2008-03-26 Structure Flex Ltd Flexible bulk container with closure flap for discharge spout
WO2011068991A1 (fr) * 2009-12-02 2011-06-09 Luzenac America, Inc. Reservoir de stockage en vrac souple a goulotte d'evacuation
US8365912B2 (en) 2010-10-21 2013-02-05 Lincoln Global, Inc. Wire containment structure including container and bag
CN103640817A (zh) * 2013-12-05 2014-03-19 常熟市诚达港务机械设备厂 料斗

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU693071B3 (en) * 1997-05-01 1998-06-18 Peter Krahn Water storage facility
WO1999065797A1 (fr) * 1998-04-30 1999-12-23 Peter Krahn Installation de stockage d'eau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211997B (de) * 1962-02-08 1966-03-03 Buehler Ag Geb Silozelle fuer schwerfliessende, pulverfoermige bzw. staubfoermige Schuettgueter wie Mehl u. dgl.
DK147157B (da) * 1978-02-23 1984-04-30 Tioxide Group Ltd Beholder af fleksibelt materiale

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211997B (de) * 1962-02-08 1966-03-03 Buehler Ag Geb Silozelle fuer schwerfliessende, pulverfoermige bzw. staubfoermige Schuettgueter wie Mehl u. dgl.
DK147157B (da) * 1978-02-23 1984-04-30 Tioxide Group Ltd Beholder af fleksibelt materiale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 92-290936/35, Week 9235; & SU,A,1 682 248, (URAKOV V G), 7 October 1991. *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1289875A1 (fr) * 2000-05-08 2003-03-12 Burleigh M. Hutchins Reservoir servant a distribuer des materiaux secs coulants
EP1289875A4 (fr) * 2000-05-08 2006-07-05 Burleigh M Hutchins Reservoir servant a distribuer des materiaux secs coulants
EP1332096A1 (fr) * 2000-10-20 2003-08-06 Acadia Industries, Inc. Sac en vrac a ouverture de decharge eloignee
EP1332096A4 (fr) * 2000-10-20 2006-01-11 Acadia Ind Inc Sac en vrac a ouverture de decharge eloignee
GB2442149B (en) * 2006-01-17 2008-05-14 Structure Flex Ltd A flexible bulk container with closure flap for discharge spout
GB2442149A (en) * 2006-01-17 2008-03-26 Structure Flex Ltd Flexible bulk container with closure flap for discharge spout
GB2434143B (en) * 2006-01-17 2008-01-30 Structure Flex Ltd Flexible bulk container flap for discharge spout
WO2011068991A1 (fr) * 2009-12-02 2011-06-09 Luzenac America, Inc. Reservoir de stockage en vrac souple a goulotte d'evacuation
CN102811925A (zh) * 2009-12-02 2012-12-05 英默里斯滑石美国有限公司 具有卸料斜槽的柔性散装存储容器
CN102811925B (zh) * 2009-12-02 2015-11-25 英默里斯滑石美国有限公司 具有卸料斜槽的柔性散装存储容器
US8365912B2 (en) 2010-10-21 2013-02-05 Lincoln Global, Inc. Wire containment structure including container and bag
CN103640817A (zh) * 2013-12-05 2014-03-19 常熟市诚达港务机械设备厂 料斗
CN103640817B (zh) * 2013-12-05 2015-12-09 常熟市诚达港务机械设备厂 料斗

Also Published As

Publication number Publication date
AU2346795A (en) 1996-11-21

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