EP0640441A1 - Dispositif et procédé pour envelopper une construction à traiter - Google Patents

Dispositif et procédé pour envelopper une construction à traiter Download PDF

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Publication number
EP0640441A1
EP0640441A1 EP94202478A EP94202478A EP0640441A1 EP 0640441 A1 EP0640441 A1 EP 0640441A1 EP 94202478 A EP94202478 A EP 94202478A EP 94202478 A EP94202478 A EP 94202478A EP 0640441 A1 EP0640441 A1 EP 0640441A1
Authority
EP
European Patent Office
Prior art keywords
wall
construction
opposing wall
opposing
blasting
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.)
Withdrawn
Application number
EP94202478A
Other languages
German (de)
English (en)
Inventor
Harm Willem Holman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0640441A1 publication Critical patent/EP0640441A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
    • B24C3/062—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable for vertical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/06—Cleaning devices for hulls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/002—Arrangements for cleaning building facades
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/002—Arrangements for cleaning building facades
    • E04G23/004—Arrangements for cleaning building facades with arrangements for collecting waste water or cleaning products

Definitions

  • the invention relates to a device for enclosing at least part of a construction to be treated, which device has been provided with a wall enclosing at least said part of the construction to be treated, and to a method for the treatment of constructions.
  • Such devices are very much desired and have in many cases even been prescribed by law in the event of the treatment giving off substances that may be harmful to environment or health. This may occur when, for example, gritblasting constructions which in the process gives off substances that are harmful to environment or health, such as the grit itself, the primer which for steel constructions often contains lead, other paint residues, flue gas residues that may be found in chimneys, and polycyclic aromatic hydrocarbons or halogenated hydrocarbons, which constructions may have a closed wall such as a ship's hull, or an open framework, or else constructions that have seriously been contaminated due to fire damage, and so on. It is, however, also possible that the treatment itself causes undesired fumes to be given off, originating for instance from chemical substances used during the treatment.
  • the invention aims at providing a construction which offers a considerable saving of time and allows for a better sealing off.
  • the wall has at least one inflatable compartment, which in inflated state gives the wall a shape that at least on one side defines a volume that contains said part of the construction.
  • the wall is secured to a cabin having a side provided with an opening around which the wall has been fixedly mounted, which cabin is supported by an adjustable supporting structure.
  • the wall When the construction to be treated is a closed surface, either curved or not, it is preferably provided that in inflated state the wall has a rim devised to be accommodated against a surface of the construction to be treated.
  • the opposing wall can be secured by fastening means which attach the opposing wall to the wall's rim and/or the construction.
  • Said fastening means may be among other things magnetic means, suction means, velcro and/or mechanical means such as press-studs, hooks, toggles, etcetera.
  • the fastening means are also sealing means or additionally provided with sealing means.
  • Said sealing means may be formed by supple strips of air-impermeable material, brushes, teeth and/or foam plastic.
  • construction parts between the wall and the opposing wall are flat, it is not difficult to accomplish an effective sealing. If, however, said construction parts are formed by T-beams or H-beams, it may be desirable or even necessary to provide in situ a means of sealing such as a plug, a magnetically secured sealing member, etcetera.
  • the wall takes a desired shape, it is provided with pressure compartments that give it the shape desired, the administering of various pressures, possibly to various compartments, being able to result in a greater variation of adjustable shapes.
  • An entirely different way of forming a sealed-off space is constituted in that the wall consists of a number of flexible sheets, which, when the pressure in the compartments is changed, envelop a different volume.
  • This type of construction which in a certain embodiments bears resemblance to a lotus flower, is for instance suitable for enveloping protruding objects such as lighting masts rising from the ground, and the like.
  • Another possibility for similar constructions consists of a cylindrical wall that is inflated around the construction.
  • the construction to be treated has per se a sufficiently sealed off shape, for example the inner wall of a chimney.
  • the upper side can for example be provided with a sealing and the bottom side with a device according to the invention, then accommodating an inflatable ring with in the middle a funnel of flexible material.
  • Such a ring may for example be held elevated by fastening inflatable legs at its bottom side.
  • An important application of the invention is constituted in blasting or gritblasting a construction.
  • an under-pressure is prevalent and this is attained by the connection to an exhaust that is linked to a suction device, the air volume flowing in when blasting and possibly in case of leakage, can be discharged, moreover, the possibility existing of separating the grit from the particles released as a result of the blasting, and of reusing it.
  • the opposing wall When to this end sufficient room is available, it is often advantageous when the opposing wall has been provided with inflatable compartments. In that case the opposing wall can have a rim corresponding to that of the wall, as a result of which the number of places where the opposing wall comes into contact with the construction is limited.
  • the wall and the opposing wall being provided with means of sealing and/or passage cooperating with each other, to allow passage of pressurized gas from the wall to inflatable compartments of the opposing wall.
  • connection between the wall, the construction and the opposing wall is at least partly effected by suction means
  • the wall accommodates under-pressure compartments that exit near the wall and there secure by means of suction parts of the opposing wall.
  • the invention also comprises a method for treating, in particular blasting a construction, with which the device in accordance with the invention is stepwise moved along the construction, as indicated in claims 18 and 19.
  • a cabin has been indicated supported by an adjustable supporting structure, such as, for example, a tower waggon.
  • a closed wall has been indicated which has to undergo a treatment such as gritblasting.
  • an inflatable bell has been indicated, which by means of internal pressure-compartments 4, 5 and 6 inflates a rim 7 and from the cabin 1 pushes to the right.
  • the pressure compartments 4, 5 and 6, assuming more or less like whalebones a predetermined shape, give the bell 3 a certain rigidity, but not to such an extent that no proper adjustment to the wall 2 should be possible.
  • Fig. 2 shows another embodiment of the invention, a cabin again having been indicated by 1, which, however, is provided with a set of sheets 10, 11 and 12 that can be unfolded by means of pressure compartments not shown, 10 and 12 of which press upon the sheet 11, which effect can be achieved by moulding the compartments accommodated in the blades, which are not drawn.
  • This construction is not only suitable for horizontal use, it can for example also be applied when a vertical or slanted mainly bar-shaped element must be enveloped, the cabin for the treatment of the enveloped construction part possibly being capable of being moved in relation to the drawn cabin 1.
  • a rectangular central duct 25 has been provided with a row of wing parts 26, one of which has been shown.
  • Each wing part has a convex end surface 27 and a concave end surface 28.
  • a plurality of gauze sheets 29 are fixed, which are sewed to the concave end surface 28, each of the side walls 30 and the convex end surface 27.
  • the concave end surface 28 has at its edges flaps 31 which consist in an extension of a side wall 30 and a retracted surface 32.
  • the convex end surface of the next wing part protrudes into the cavity of the previous concave end surface.
  • the sheet 11 may have a central longitudinal duct with wing parts of the type of 26 above and below it.
  • Fig. 3 shows an embodiment of the invention which is suitable for the treatment of a vertical mast, such as a lighting mast.
  • the cabin 1 carries an inflatable bell-shaped part 13 that changes into a cylindrical part 14 with an upper shut-off 15.
  • a funnel 16 At the bottom side a funnel 16 has been provided which envelopes a schematically drawn mast 17 and under which an discharging part 18 is located that has been laid around the mast 17 in a sealing fashion, for instance by means of sealing means, sealing pieces, etcetera.
  • Fig. 4 shows the case when the bell 3 is located at one side of the open frame-work construction and an opposing wall 19 at the other side.
  • the rim 7 of the bell meets the opposing wall 19 at the outside, but continues under an H-beam 20 to the point 7' where the bell 3 again touches the opposing wall 19.
  • sealing parts 21, for example made of foam rubber have been mounted.
  • the sealing can be effected in all kinds of different ways, for example by elastic sealing elements protruding from the bell 3 and/or the opposing wall 19, the application of sealing pieces provided with fastening means or brushes not drawn, which may offer no complete sealing, but this is not necessary: the bell is underpressurized and a limited inflow of air is permissible.
  • fig. 5 shows a detailed cross-section of a rim 7'', which has a cavity 24 with a duct 22 for air of a lower than atmospheric pressure, for example created by a connection with the inner side of the bell 3.
  • the invention is not limited to the embodiment examples considered. It is possible to effect a sealing between the bell 3 and the opposing wall 19 in very diverse ways such as, for example, velcro, temporarily adhering adhesive tape, mechanical connecting means between 3 and 19, such as clips, toggles construction, press-studs, and so on. Furthermore, the shape of the inflatable construction 3 can be adjusted to various constructions to be treated.
  • the bell 3 When a large construction must be treated the bell 3 can be first fixed on one particular place. Thereupon the opposing wall 19 is mounted, the entity is sealed and the treatment of one side of the construction is carried out. Subsequently, the connection to the opposing wall 19 can, if need be, then be discontinued and the whole can be shifted, whereupon the sealing between 19 and the bell 3 can be effected again.
  • the rim 7 of the bell 3 should have a rectangular shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Tents Or Canopies (AREA)
EP94202478A 1993-08-31 1994-08-30 Dispositif et procédé pour envelopper une construction à traiter Withdrawn EP0640441A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301491 1993-08-31
NL9301491A NL9301491A (nl) 1993-08-31 1993-08-31 Inrichting en werkwijze voor het omsluiten van een te behandelen constructie.

Publications (1)

Publication Number Publication Date
EP0640441A1 true EP0640441A1 (fr) 1995-03-01

Family

ID=19862809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202478A Withdrawn EP0640441A1 (fr) 1993-08-31 1994-08-30 Dispositif et procédé pour envelopper une construction à traiter

Country Status (2)

Country Link
EP (1) EP0640441A1 (fr)
NL (1) NL9301491A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037461A1 (fr) * 2019-08-29 2021-03-04 Hermes Fassadenreinigung GmbH Bande d'adhérence destinée à des façades

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB460790A (en) * 1935-09-28 1937-02-04 Charles Fletcher Lumb Improvements in and relating to sandblasting and like apparatus
DE3402907A1 (de) * 1984-01-28 1985-08-08 Gerd 4600 Dortmund Drespa Strahlvorrichtung mit funken- und staubeliminierung
EP0315500A1 (fr) * 1987-11-03 1989-05-10 Gabrielle Thomann Cabine pour le ravalement des façades de bâtiments
EP0393918A2 (fr) * 1989-04-19 1990-10-24 Vapormatt Limited Traitement de surfaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB460790A (en) * 1935-09-28 1937-02-04 Charles Fletcher Lumb Improvements in and relating to sandblasting and like apparatus
DE3402907A1 (de) * 1984-01-28 1985-08-08 Gerd 4600 Dortmund Drespa Strahlvorrichtung mit funken- und staubeliminierung
EP0315500A1 (fr) * 1987-11-03 1989-05-10 Gabrielle Thomann Cabine pour le ravalement des façades de bâtiments
EP0393918A2 (fr) * 1989-04-19 1990-10-24 Vapormatt Limited Traitement de surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037461A1 (fr) * 2019-08-29 2021-03-04 Hermes Fassadenreinigung GmbH Bande d'adhérence destinée à des façades

Also Published As

Publication number Publication date
NL9301491A (nl) 1995-03-16

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