EP0323946B1 - Dispositif pour la maintenance des grands conteneurs - Google Patents

Dispositif pour la maintenance des grands conteneurs Download PDF

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Publication number
EP0323946B1
EP0323946B1 EP89730001A EP89730001A EP0323946B1 EP 0323946 B1 EP0323946 B1 EP 0323946B1 EP 89730001 A EP89730001 A EP 89730001A EP 89730001 A EP89730001 A EP 89730001A EP 0323946 B1 EP0323946 B1 EP 0323946B1
Authority
EP
European Patent Office
Prior art keywords
container
pivot arms
bogie
adjustable
frame
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
EP89730001A
Other languages
German (de)
English (en)
Other versions
EP0323946A2 (fr
EP0323946A3 (en
Inventor
Harald Klähne
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.)
Isb Generalunternehmen fur Industriespezialbau GmbH
Original Assignee
Isb Generalunternehmen fur Industriespezialbau 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 Isb Generalunternehmen fur Industriespezialbau GmbH filed Critical Isb Generalunternehmen fur Industriespezialbau GmbH
Publication of EP0323946A2 publication Critical patent/EP0323946A2/fr
Publication of EP0323946A3 publication Critical patent/EP0323946A3/de
Application granted granted Critical
Publication of EP0323946B1 publication Critical patent/EP0323946B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D88/00Large containers
    • B65D88/02Large containers rigid
    • B65D88/06Large containers rigid cylindrical
    • B65D88/08Large containers rigid cylindrical with a vertical axis

Definitions

  • the invention relates to devices for the maintenance of large-volume containers, such as storage tanks or similar vessels, preferably with at least approximately a round cross-section according to the preamble of claim 1.
  • Tank vessels for storing gases or liquids of all kinds, such as city gas, petroleum, various petroleum fractions and other fluids, but also solids, such as fine dusts and the like.
  • storage tanks of this type are mostly rotationally symmetrical structures of cylindrical, oval or spherical shape. Since their height often corresponds to several floors of a building, and because of their specific locations they are often difficult to access, their maintenance is difficult, time-consuming and therefore cost-intensive in a large number of practical applications.
  • US-A-3 537 545 shows a cylindrical container arranged on a lattice mast, the convexly curved upper cover area of which carries an outwardly projecting central pin which is an integral part of this area.
  • a scaffold construction for receiving a work platform that can be raised and lowered is attached to this pin by means of a rope and can be rotated about it.
  • the pin must therefore absorb all of the forces transmitted via radial swivel arms of the scaffold structure and caused by the weight of the work platform, so that the container must be designed to be correspondingly stable.
  • It is also a removable scaffold construction that must always be re-attached to the pin. It is also relatively unstable and therefore not suitable for large containers.
  • storage tanks of this type must be provided with covers of various shapes depending on the application, such as those with central ventilation shafts or so-called dome structures, or that these are flat-bottom tanks with double walls can act.
  • the maintenance device according to the invention is particularly easy to install and dismantle as an access system for storage tanks of all kinds, and easy to assemble and dismantle, it can be easily hung regardless of the location of the large-capacity container and the surrounding soil conditions around the tank over its entire length Swivel the circumference continuously, and there are no special requirements either on the container wall or on the container cover.
  • the scaffolding construction consists essentially of commercially available material already known for scaffolding of buildings and the like, namely tubular frame individual parts.
  • one or more crane arm-like connectors are added, which are also of a material-saving design, and for large-volume vessels with fixed roofs without a central ventilation shaft, a rotating axle bearing construction, the versatility of which can also be achieved through a simple but effective construction from a few standardized individual parts indicates.
  • the attached drawings show Various embodiments of the device according to the invention for the maintenance of large-scale containers of all types, preferably with a highly rotationally symmetrical cross section, are partially highly schematized.
  • the device for the maintenance of the partially indicated cylindrical storage tank 3 essentially consists of the bogie 1 arranged centrally around the dome shaft 2, on the swivel arms leading radially outwards in the exemplary embodiment at an angle of 120 ° to each other are held, which are fixed to each other by connecting struts 5 and from on the radially outer ends of the swivel arms 12 located in the area of the upper container edge load blocks 14. On the radially outwardly extending beyond the upper container edge 7 of the swivel arms 12 are vertically hanging down the scaffolding structures holding the platforms are attached.
  • the bogie 1 forms a closed collar bushing around the ventilation or dome shaft 2 provided centrally on the large-capacity container.
  • Fig. 3 shows several details of an embodiment of a bogie, which is only indicated schematically in Fig. 1.
  • the central holder for the scaffold structure which can be pivoted through the full angle of the container circumference.
  • the axis of rotation or symmetry is the vertical central axis 8 of the ventilation shaft, as indicated in FIG. 3 in dash-dotted lines.
  • the bogie 1 is characterized first by the fact that the collar bushing 11 has axle stubs 13 which are guided horizontally through their vertical wall sections and on whose radially inwardly directed free ends there are mounted impellers 15 which are supported on the outer circumferential surface of the cylindrical air duct 2 while rotating of the bogie and thus the scaffolding construction.
  • a plurality of such impellers which can be adjusted and locked in the horizontal direction by means of nuts 16 are provided around the circumferential surface of the collar bushing 11.
  • the lower part of the display frame 1 opens into a frame 17 which can be hexagonal according to the embodiment according to FIG. 2 and quadrangular according to the embodiment according to FIG. 6.
  • frame 17 which can be hexagonal according to the embodiment according to FIG. 2 and quadrangular according to the embodiment according to FIG. 6.
  • the frame 17 accommodates axle bearings via vertical bores for height-adjustable rollers or wheels 18 which run on the surface of the container roof 4 to support the bogie 1.
  • Struts 19 can be provided between the collar bushing 11 and the frame 17 for reasons of increased strength.
  • the wheels 15 form adjusting rollers with respect to the centering of the scaffold structure, while the wheels 18 in their horizontal adjustability allow the axis-parallel alignment of the overall structure in a simple manner.
  • a load bracket 14 is attached in the manner to be described later, which rotates along the upper container edge 7 on the container roof 4 when the bogie 1 is pivoted.
  • the load bracket 14 is shown again enlarged in cross section in FIG. 5. It essentially consists of a simple frame construction with lower height-adjustable wheels. However, it is also readily possible to use a carriage-like one Load block made of prefabricated pipe parts, using pipe connectors, namely pipe clamps and conventional lattice structures.
  • the ladder aisles of the scaffold structure are hooked into which the work platforms can be inserted and locked in a manner known per se as with other scaffold structures.
  • 5 is limited in its cross section to a trapezoidal carriage construction with 4 or 8 wheels each, which can run freely around the entire surface of the large container and are able to fully absorb the weight of the scaffolding construction.
  • the scaffold construction according to the exemplary embodiment according to FIGS. 1 to 6 thus forms a circular construction, that is to say that it runs around the full circumferential surface of the container and runs on the container roof 4, to which ladder aisles are attached, which are able to accommodate any number of working platforms, through which in turn any place on the outer skin of the large container can be reached in the simplest way for maintenance work, such as renovations, repainting, monitoring activities and the like. It is irrelevant how many individual parts the so-called collar bushing 11 of the bogie is ultimately composed of, so that the overall construction can be constructed from only a few prefabricated and standardized individual parts.
  • the rotary movement can be realized by means of simple chain or gear transmission drives.
  • the conductor constructions which are attached to the radially outer ends of the swivel arms 12 are indicated in FIG. 1 with the reference number 20.
  • the swivel arm 12 can also consist of a lattice construction which can have a triangular shape in cross section, for example.
  • the device for hanging in the ladder racks or the work platforms is shown in a hint on the left in FIG. 6.
  • FIGS. 1 to 6 In the case of large-capacity containers or tank systems with a fixed roof construction but without a ventilation dome, the embodiment of FIGS. 1 to 6 is replaced by an embodiment as can be seen in FIGS. 7 to 10 inclusive.
  • the dome structure is replaced here by an axle bracket 21 placed centrally on the container roof and composed of an upper part 22 and a lower part 23.
  • the lower part 23 is connected to the upper part 22 via a plurality of shaft-like rods 24, along which a height-adjustable displacement between the upper and lower part is possible.
  • FIG. 1 to 6 In the case of large-capacity containers or tank systems with a fixed roof construction but without a ventilation dome, the embodiment of FIGS. 1 to 6 is replaced by an embodiment as can be seen in FIGS. 7 to 10 inclusive.
  • the dome structure is replaced here by an axle bracket 21 placed centrally on the container roof and composed of an upper part 22 and a lower part 23.
  • the lower part 23 is connected to the upper part 22 via a plurality of shaft-like
  • a total of 6 such rods 24 are provided at the same distance from the vertical central axis 8 and at the same distance from one another and the lower part 23 can consist of angle irons welded together in the region of the corners specified by the rods 24 and the The angular iron polygon can be aligned horizontally by means of height-adjustable screw bolts 25 at the respective corners.
  • the rods 24 are with the lower part 23 by insertion the same in suitable socket holes along said angle iron and locking, for example by screw fastening, rigidly connected and the upper part 22 corresponds essentially to that of the lower part 23 in its embodiment, so it can in turn be made of angle iron, additional struts 26 holding a central axle bearing 27, which is fixed twice in this way, i.e.
  • the height-adjustable feet 25 which can be provided in the exemplary embodiment at all six corners or advantageously only at three corners of the substructure, it is also possible to attach mobile rollers or wheels in order not only to be able to adjust the axle bracket 21 in the horizontal direction but also if necessary also bring it into any angular position to a vertical cutting plane.
  • both the lower part and the upper part are additionally secured with radial struts 32 in addition to the angle irons connecting the bearing bushes 28 to one another, or can at least be secured in this way, in particular the upper part 22 requiring these radial struts 32 in order to secure the central axle bearing 27 , as shown there, to be clearly fixed and secured against possible torques.
  • Different boiler curvatures can, as in the exemplary embodiment according to FIGS. 1 to 6, be compensated for by adjusting the angle of inclination towards the center.
  • Different axis lengths can be taken into account in the simplest way when the tank arms are correspondingly different by suitable extension on the swivel arms 12.
  • a length-adjustable connecting piece serves as an end piece for balancing the center point and the load frame, a plate, for example a steel plate, with corresponding bores and a corresponding counter plate that can be tilted, in turn, can adjust the angle of inclination of the swivel arm continuously and practically as desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Claims (8)

  1. Dispositif d'entretien de grands conteneurs, tels que des réservoirs de stockage et des récipients analogues, à section transversale de préférence au moins approximativement ronde, comprenant une construction d'échafaudage qui est prévue pour recevoir plusieurs plates-formes de travail le long de la paroi du conteneur et est supportée pour pouvoir pivoter autour de l'axe de symétrie (8) du grand conteneur, le long de la totalité de sa surface périphérique, en se soutenant au moins dans la zone du bord supérieur du conteneur, et qui présente un grand nombre de bras pivotants (12) qui s'étendent radialement vers l'extérieur et à l'extrémité respectivement libre desquels, extrémité qui fait saillie au-delà de la paroi du conteneur, peuvent être fixés des réseaux d'échelles (20), caractérisé en ce que les bras pivotants (12) sont, par leur extrémité respectivement interne, articulés sur un chevalet axial (21) ou un châssis rotatif (1) centré, ajustable.
  2. Dispositif suivant la revendication 1, caractérisé en ce que le châssis rotatif (1) est agencé, de manière ajustable horizontalement et verticalement, autour d'un dôme d'aération (2) du toit du conteneur (4).
  3. Dispositif suivant la revendication 2, caractérisé en ce que le châssis rotatif (1) est constitué d'une douille à collet (11) et d'un cadre (17) et en ce que des roues de roulement (15) réglables horizontalement peuvent être reçues par la douille à collet (11) et des rouleaux réglables verticalement (18) être reçus par le cadre (17).
  4. Dispositif suivant la revendication 3, caractérisé en ce que des supports (46) pour les bras pivotants (12) sont en outre agencés sur le cadre (17).
  5. Dispositif suivant la revendication 1, caractérisé en ce que le chevalet axial (21) est amené en position centralement sur le toit (4) du conteneur et en ce qu'il est constitué d'une partie supérieure (22) et d'une partie inférieure (23), la partie inférieure portant des boulons filetés (25) qui permettent l'ajustement horizontal du chevalet axial (21) sur le toit du conteneur, la partie supérieure (22) logeant un arbre axial (9) qui est orienté de manière centrée par rapport à l'axe central vertical (8) sur lequel des pièce de raccordement (31), qui maintiennent les bras pivotants (12), sont supportées par l'intermédiaire de douilles (30) démontables.
  6. Dispositif suivant la revendication 5, caractérisé en ce que la partie supérieure (22) du chevalet axial (21) est réglable en hauteur par rapport à sa partie inférieure (23) par l'intermédiaire de tiges (24).
  7. Dispositif suivant l'une des revendications 1 à 6, caractérisé en ce que les bras pivotants (12) sont, dans la zone du bord supérieur (7) du réservoir de stockage (3), supportés de manière réglable en hauteur au moyen de supports de charge (14).
  8. Dispositif suivant l'une des revendications 1 à 7, caractérisé en ce que les bras pivotants (12) sont maintenus à des distances angulaires prédéterminées entre eux au moyen d'entretoises (5).
EP89730001A 1988-01-06 1989-01-02 Dispositif pour la maintenance des grands conteneurs Expired - Lifetime EP0323946B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3800344 1988-01-06
DE3800344 1988-01-06
DE3830589A DE3830589A1 (de) 1988-01-06 1988-09-08 Einrichtung zur wartung von grossraumbehaeltern
DE3830589 1988-09-08

Publications (3)

Publication Number Publication Date
EP0323946A2 EP0323946A2 (fr) 1989-07-12
EP0323946A3 EP0323946A3 (en) 1990-08-08
EP0323946B1 true EP0323946B1 (fr) 1993-06-30

Family

ID=25863801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730001A Expired - Lifetime EP0323946B1 (fr) 1988-01-06 1989-01-02 Dispositif pour la maintenance des grands conteneurs

Country Status (5)

Country Link
US (1) US5007500A (fr)
EP (1) EP0323946B1 (fr)
DE (2) DE3830589A1 (fr)
ES (1) ES2042055T3 (fr)
NO (1) NO890028L (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1101839A (en) * 1913-04-26 1914-06-30 Martin O Elvestrom Scaffolding.
US3114433A (en) * 1963-01-04 1963-12-17 Downs Cas Arnold Traveling scaffold
SU338501A1 (ru) * 1968-04-15 1972-06-09 И. Г. Хизанишпили, Г. Г. Гаприидашвили , Ц. П. Цанапа Химстойкая глазурь
US3537545A (en) * 1968-10-23 1970-11-03 James E Willis Positioning device for elevated structures
DE7228472U (de) * 1972-08-01 1974-02-28 Wahl F Arbeitsbuehne zur durchfuehrung von ausmauerungsarbeiten in hochoefen konvertern u.dgl.
US3854550A (en) * 1972-12-21 1974-12-17 Cyclops Corp Mobile outrigger for scaffolds
US3837429A (en) * 1973-08-03 1974-09-24 R Harris Traveling scaffold
US4234055A (en) * 1978-09-25 1980-11-18 Beeche Gregory L Mobile suspension scaffold system

Also Published As

Publication number Publication date
NO890028D0 (no) 1989-01-04
DE58904816D1 (de) 1993-08-05
ES2042055T3 (es) 1993-12-01
EP0323946A2 (fr) 1989-07-12
NO890028L (no) 1989-07-07
EP0323946A3 (en) 1990-08-08
DE3830589A1 (de) 1989-07-27
US5007500A (en) 1991-04-16
DE3830589C2 (fr) 1992-01-09

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