EP0335864B1 - Systeme de fluidisation de marchandises en vrac - Google Patents

Systeme de fluidisation de marchandises en vrac Download PDF

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Publication number
EP0335864B1
EP0335864B1 EP87906027A EP87906027A EP0335864B1 EP 0335864 B1 EP0335864 B1 EP 0335864B1 EP 87906027 A EP87906027 A EP 87906027A EP 87906027 A EP87906027 A EP 87906027A EP 0335864 B1 EP0335864 B1 EP 0335864B1
Authority
EP
European Patent Office
Prior art keywords
bulk material
space
block
panel
cavity
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
EP87906027A
Other languages
German (de)
English (en)
Other versions
EP0335864A1 (fr
Inventor
Carl-Olof Samuelsson
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.)
Hw Carlsen AB
Original Assignee
Hw Carlsen AB
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 Hw Carlsen AB filed Critical Hw Carlsen AB
Publication of EP0335864A1 publication Critical patent/EP0335864A1/fr
Application granted granted Critical
Publication of EP0335864B1 publication Critical patent/EP0335864B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/04—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods solid
    • 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
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices

Definitions

  • the present invention relates to a system for fluidising bulk material in such spaces as ships' holds, storage and transport containers etc. according to the preamble of claim 1, said system comprising inclined slides for the bulk material on the bottom of the space, each slide having a panel with channels or openings connected to a source of pressure gas, and a gas-permeable layer covering said panel and adapted to fluidise the bulk material and move it by gravity to discharge points located at a lower level, for emptying said space.
  • the main object of the present invention is to provide a system of the type mentioned by way of introduction for rapidly and conveniently, and thus at far less expense, converting a cargo-ship having a planar "general cargo bottom” into a cargo-ship having a sloping "fluidisation bottom", and vice versa.
  • this object is achieved by the features of the characterizing part of claim 1 whereby a number of light-weight blocks are mounted on the bottom of the space (the hold) for rapid and convenient dismantling therefrom, each block having an upper side forming a slide, and long, short, and bottom sides.
  • the long and short sides are formed of thin cover plates, and the panel and said cover plates define the cavity which is filled with a body of light-weight material, such as foamed polyurethane plastic. Turned upside down, this cavity constitutes a suitable mold for producing the foamed plastic body.
  • a body of light-weight material such as foamed polyurethane plastic.
  • One of the advantages of the system according to the invention is its high flexibility, i.e. its adaptability to the form and size of the ship's hold.
  • the blocks comprised by the system can be rapidly and conveniently mounted and dismantled.
  • the only work required on the hold bottom involves the mounting of a number of attachment lugs or the like for tie rods holding the block.
  • Each block accommodates a body of foamed plastic, which means that the weight of the construction is very low, about 50 kg/m3.
  • the bottom side of the foamed plastic body forms the bottom side of the block and is in direct contact with the bottom of the space so that the form of the space can be followed exactly to distribute and equalise the static load across the entire bottom of the space regardless of the existing bottom structure.
  • FIG. 1a is a schematic perspective view of an example of the basic principle of the system for installation in the hold of a ship illustrated in Fig. 1b.
  • Fig. 1c is a section along line I-I in Fig. 1b.
  • Fig. 2 shows, in a projection corresponding to Fig. 1a, the construction of the system in greater detail.
  • Fig. 3 is a top plan view of the blocks comprised by the system.
  • Fig. 4 is a lateral projection along line IV-IV Fig. 3.
  • Fig. 5 is a section along line V-V in Fig. 3.
  • Fig. 6 is a section along line VI-VI in Fig. 3.
  • the main components of the system generally designated 1 in the drawings, for fluidising bulk material, such as cement, bentonite, byrite, starch etc. in the hold 3 of a ship 2 for emptying the bulk material, are a number of dismantleable transversely and longitudinally extending blocks 5 mounted closely adjacent one another on the bottom 4 of the hold 3.
  • Each block 5 has on its upper side 6 a sloping slide 7 preferably in a form of a trapezoidally corrugated sheet metal panel 8 with channels 10 communicating, via supply lines 9, with a source of pressure gas (not shown), preferably a compressed air source.
  • these channels 10 are formed by the troughs of the trapezoidally corrugated sheet metal 8.
  • a gas-permeable layer 11 in a form of a finemesh net and/or fabric covers the associated panel 8. Upon supply of compressed air or other gas, the air or gas flows, via the supply lines 9 and the channels 10 in the panel 8, out through the layer 11 for fluidising the bulk material and for moving the material by gravity to discharge points 12 at a lower level, for emptying the respective hold 3.
  • each block 5 has two long sides 13, two short sides 14, and a bottom side 15.
  • the long and short sides 13, 14 are formed by thin sheet metal cover plates 16 which, together with the panel 8, form a box structure having a cavity 17.
  • the cavity 17 is filled with a body 18 of foamed plastic which imparts strength and stability to the block 5, but does not make the block heavy.
  • the foamed plastic body 18, can be made more or less porous according to requirements and preferably consists of polyurethane.
  • the cavity 17 preferably is used as a mold. More particularly, the panel 8 and the cover plates 16 constitute the mold sides in the upside down position of the block 5.
  • the bottom side 15 of the block 5 is formed by the bottom 19 of the foamed plastic body 18.
  • the bottom 19 projects some centimetres from the lower edge of the cover plates 16 to directly engage the bottom 4 of the respective hold 3, thereby to follow exactly the bottom shape in order to equalise or absorb any irregularities of the bottom 4 and to distribute the static load on the bottom.
  • a body may be used which consists of some other light-weight material, such as light-weight concrete, cement-bonded burned expanded clay, or the like.
  • the blocks 5 are rapidly and conveniently dismantleable from the bottom 4 of the respective hold 3 by means of tie rods 20 extending through the narrow gaps 21 between two adjacent blocks 5.
  • the tie rods 20 are anchored at their lower end in lugs 22 or the like secured to the bottom 4, and have an upper threaded end. Shims 23 are clamped, by means of nuts 24 on the upper end of the rod 20 and by means of nuts 25 on threaded pins associated with the respective block 5, against the blocks to fix them in position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Ship Loading And Unloading (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

Un système servant à fluidiser des marchandises en vrac dans la cale (3) d'un bateau (2) comprend plusieurs blocs (5) montés de façon amovible sur le fond (4) de la cale (3), le côté supérieur (6) des blocs formant une pente glissante (7) et les côtés long et court (13, 14) dudit bloc définissant avec ladite pente une cavité (17) remplie d'un corps en mousse plastique (18).

Claims (3)

  1. Un système pour la fluidisation de produit en vrac, dans des espaces tels que la cale (3) d'un bateau (2), des containers de stockage et de transport, etc., ledit système comprenant des surfaces de glissement (7) inclinées pour le produit en vrac au fond (4) de l'espace (3), chaque surface de glissement (7) ayant un tableau (8) avec des canaux (10) ou ouvertures reliés à une source de gaz comprimé et une couche (11) perméable au gaz couvrant ledit tableau (8) et adaptée pour fluidiser le produit en vrac et le déplacer vers des points (12) de déchargement situés à un niveau inférieur, pour vider ledit espace (3) ainsi qu'un nombre de blocs légers (5) montés sur le fond (4) de l'espace (3), chaque bloc (5) ayant une face supérieure (6) formant une surface de glissement (7) et des faces longue, courte et inférieure (13, 14, 15), les faces longue et courte (13, 14) étant formées par de minces plaques de couverture (16) et le tableau (8) et les plaques de couvertures (16) définissant une structure en caisson ayant une cavité (17), caractérisé en ce que ladite cavité (17) est remplie d'un corps (18) de matière légère et en ce que le fond (19) dudit corps (18) constitue la face inférieure (15) du bloc (5) et est en contact direct avec le fond (4) de l'espace (3) pour en épouser la forme et, de ce fait, y distribuer la charge statique.
  2. Un système comme revendiqué à la revendication 1, caractérisé en ce que ladite matière légère du corps (18) est de la matière plastique cellulaire, de préférence du polyuréthane.
  3. Un système comme revendiqué à la revendication 2, caractérisé en ce que la cavité (17), dans la position renversée de haut en bas du bloc (5), constitue un moule pour la production du corps (18) en matière plastique cellulaire.
EP87906027A 1986-09-12 1987-09-10 Systeme de fluidisation de marchandises en vrac Expired - Lifetime EP0335864B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603814A SE464125B (sv) 1986-09-12 1986-09-12 System foer fluidisering av bulkmaterial
SE8603814 1986-09-12

Publications (2)

Publication Number Publication Date
EP0335864A1 EP0335864A1 (fr) 1989-10-11
EP0335864B1 true EP0335864B1 (fr) 1992-12-02

Family

ID=20365555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87906027A Expired - Lifetime EP0335864B1 (fr) 1986-09-12 1987-09-10 Systeme de fluidisation de marchandises en vrac

Country Status (8)

Country Link
EP (1) EP0335864B1 (fr)
JP (1) JP2708164B2 (fr)
DE (1) DE3782946D1 (fr)
HK (1) HK68993A (fr)
NO (1) NO164969C (fr)
SE (1) SE464125B (fr)
SG (1) SG54293G (fr)
WO (1) WO1988001963A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219784B (en) * 1988-05-27 1992-09-30 Gary Kenneth Busch Element for adapting a bulk transport container or hold of a ship to fluidise and discharge its contents and method therefor
GB2227482A (en) * 1989-01-26 1990-08-01 Exprocad Services Ltd Fluidising bulk particulate material
US8312818B2 (en) * 2006-05-12 2012-11-20 Jean-Claude Poncet Modular vibratory floor
SG169253A1 (en) * 2009-09-03 2011-03-30 Viking Dredging As A method of preparing a dry bulk carrier
BE1029471B1 (nl) * 2021-05-27 2023-01-09 Gitra Bv Bodemelement voor het vormen van een fluïdisatiebodem
WO2022249143A1 (fr) * 2021-05-27 2022-12-01 Gitra Bv Élément de fond pour former un fond de fluidisation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367723A (en) * 1966-04-07 1968-02-06 Halliburton Co Steady flow bin for pulverulent material

Also Published As

Publication number Publication date
SE8603814L (sv) 1988-03-13
SG54293G (en) 1993-07-09
JPH02500585A (ja) 1990-03-01
SE464125B (sv) 1991-03-11
JP2708164B2 (ja) 1998-02-04
NO164969C (no) 1990-12-12
WO1988001963A1 (fr) 1988-03-24
DE3782946D1 (de) 1993-01-14
NO882031D0 (no) 1988-05-10
NO882031L (no) 1988-05-13
EP0335864A1 (fr) 1989-10-11
NO164969B (no) 1990-08-27
SE8603814D0 (sv) 1986-09-12
HK68993A (en) 1993-07-23

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