EP0727282B1 - Dispositif et procédé pour de sablage pour des parois d'alésages ou de tubes - Google Patents

Dispositif et procédé pour de sablage pour des parois d'alésages ou de tubes Download PDF

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Publication number
EP0727282B1
EP0727282B1 EP96810032A EP96810032A EP0727282B1 EP 0727282 B1 EP0727282 B1 EP 0727282B1 EP 96810032 A EP96810032 A EP 96810032A EP 96810032 A EP96810032 A EP 96810032A EP 0727282 B1 EP0727282 B1 EP 0727282B1
Authority
EP
European Patent Office
Prior art keywords
pipe
rotor
air
end piece
abrasive material
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
EP96810032A
Other languages
German (de)
English (en)
Other versions
EP0727282A1 (fr
Inventor
Silvano Keller
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.)
Oerlikon Metco AG
Original Assignee
Sulzer Metco AG
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 Sulzer Metco AG filed Critical Sulzer Metco AG
Publication of EP0727282A1 publication Critical patent/EP0727282A1/fr
Application granted granted Critical
Publication of EP0727282B1 publication Critical patent/EP0727282B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes

Definitions

  • the present invention relates to a device for sandblasting of bore and pipe walls according to the generic term of claim 1, a method for sandblasting drilling and Pipe walls according to the preamble of the claim 12, as well as the use of an application device for sandblasting (Claim 17), with the construction of an assembly one of the Application device known from DE-A-3336873.
  • sandblasting should not only do that Blasting of surfaces with sand can be understood, but the The term “sandblasting” is intended to represent everything Blasting with abrasive grit can be understood.
  • DE-AS 1 142 298 describes a device for sandblasting the inner surface of pipes.
  • This device has an inner supply pipe for the compressed air and a concentric one arranged outer tube for the supply of the Blasting material on.
  • the two pipes open at the front an annular discharge nozzle.
  • the compressed air is distributed evenly on all sides Deflected 90 °.
  • Slits are provided through which the redirected compressed air Grit is fed.
  • the air-sand mixture thus formed emerges from the nozzle in the form of an annular jacket and strikes perpendicular to the inside surface of the one to be blasted Pipe on.
  • the disadvantage of this device is that the nozzle through the Blasting material very much in the area of the slots and the outlet opening is heavily used and subject to high wear. Since the wear of such nozzles is also not symmetrical, the inner surface to be blasted is not uniform blasted. Another disadvantage of this device is in the fact that, due to the large outlet cross-section, Pressure drop arises, causing the air speed at the exit the nozzle is comparatively small. This causes that the maximum, kinetic energy, which a single, by the grain of sand has moving air, is relatively small. Finally, there is another disadvantage of this device to see that it is not possible to see only the worn part replace, but that always replaced the entire device must become. The angle of incidence of the blasting material on the radiant wall cannot be varied.
  • Preferred embodiments of the device are in the dependent Claims 2 to 11 defined.
  • the central feed pipe for the blasting material is non-rotatable to train. This ensures that, as is known transition from stationary to connected with great difficulty on a rotating part in the blasting material feed pipe falls away.
  • a preferred embodiment of the device is modular trained end piece releasably supported on the second tube in front. By replacing this end piece, certain Beam parameters can be changed. For example, the deflection angle of the blasting material as well as the jet shape through various trained end pieces are influenced.
  • Another object of the invention is a method for sandblasting of bore and pipe walls according to Propose the preamble of claim 12, by means of which the Borehole and pipe walls easily and evenly can be blasted.
  • Preferred embodiments of the method are in the dependent Claims 13 to 16 circumscribed.
  • the device shown in Fig. 1 essentially has a central feed pipe 1 for the blasting material, a connecting element 2, consisting of a stator 3 and a rotor 4, and a feed pipe arranged on the rotor 4 of the connection element 2 5 for compressed air.
  • An electric motor is used to drive the rotor 4 6 provided.
  • the stator 3 of the connection element 2 has an essentially cylindrical housing 8, while the rotor 4th essentially by an approximately T-shaped cross-section Body 10 is formed.
  • the rotor 4 is over two Bearings 11, 12 supported on the housing 8, whereby it is made down protrudes the housing 8.
  • a groove 13 in the upper side Embedded rotor 4 through which together with the housing 8th an upper, annular cavity 14 is formed.
  • this groove 13 is the housing 8 with a radial through the wall of the housing 8 leading through hole 15 provided.
  • this feed pipe 5 for compressed air arranged, this feed pipe 5 with the lower Cavity 18 of the rotor 4 is connected.
  • the feed pipe 5 runs essentially parallel to the feed pipe 1 for blasting material and is on the bottom with an approximately 80 ° to the stationary Provide tube 1 bent end piece 20.
  • the mouth 21 this end piece 20 is beyond, i.e. in the drawing below the outlet opening 22 of the stationary tube 1.
  • the rotatable supply pipe 5 for compressed air is in the lower area End via a cuff 23 serving as storage stationary tube 1 supported.
  • a cuff 23 serving as storage stationary tube 1 supported.
  • the bent end piece 20 is releasably attached to the supply pipe 5 for compressed air. Will this Loosened screw connection 24, the end piece 20 can be removed and be exchanged for another.
  • FIG. 2 shows a section along the line A-A in FIG. 1 the sleeve 23, which the storage of the feed tube 5 for Compressed air on the stationary pipe 1 and the attachment of the end piece 20 on the feed pipe 5 is used.
  • the housing 8 is provided with a flange 26, which has a central bore 27.
  • the central tube 1 for the supply of the blasting material by means of two setscrews 28 fixed in a rotationally fixed manner.
  • the central Tube 1 is arranged so that its longitudinal axis 7 with the Rotation axis of the rotor 4, and thus also the feed pipe 5 for Compressed air, collapses. This enables a symmetrical Distribution of the blasting material when operating the device.
  • a pneumatic drive can be provided.
  • a pneumatic drive medium could be used for distraction and acceleration of the blasting material used.
  • the stationary feed pipe 1 for the blasting material can be on the top via a hose connection to the storage container for blasting material. Both the hose connection like the storage container are in favor of a clear Representation not shown.
  • the compressed air required for the actual blasting process is via a line, not shown here, into the housing 8 leading, radial connection bore 15 fed from where it flows into the upper annular space 14. Arrived from the upper annular space 14 the compressed air via those admitted into the rotor 4 Longitudinal bores 17 in the lower annular space 18 and from there in the feed pipe 5 attached to the rotor 4. At the end of this feed pipe 5 the compressed air escapes through the bent end piece 20, in such a way that it exits from the stationary feed pipe 1 Deflects and accelerates the blasting material in the direction of the air jet.
  • the blasting material itself is, as mentioned above, from a storage container via a hose connection to the stationary, central feed pipe 1 supplied, from which it is the outlet opening 22 exits.
  • the blasting material is fed usually by a carrier gas, for example air, whereby the device is not only shown in the here vertical but can be used in any position.
  • a carrier gas for example air
  • the device By rotating the rotor 4, and thus the compressed air supply pipe 5 and its end piece 20 about the central axis 7 the device is made transverse to the axis of rotation 7 of the rotor 4 air jet emerging with respect to the rotatable feed pipe the mouth opening 21 of the end piece 20 circularly around the rotor axis of rotation 7 moves.
  • the blasting material will exit after exiting the central feed pipe 1 transverse to the axis of rotation 7 of the rotor 4 deflected and accelerated in the direction of the wall to be blasted. In this way, bore and pipe walls can be blasted become.
  • the wall is fixed, that which emerges from the feed pipe Blasting material through the air jet preferably by 50 ° to 70 ° deflected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Details Of Cutting Devices (AREA)
  • Spray Control Apparatus (AREA)
  • Coating With Molten Metal (AREA)

Claims (17)

  1. Dispositif de sablage pour les parois de forures et les parois de tube, comprenant un premier tube (1) destiné à l'acheminement du matériau de sablage et un deuxième tube (5) destiné à l'amenée d'air comprimé, le deuxième tube (5) étant muni d'un embout (20) qui fait dévier le jet d'air, caractérisé en ce que le deuxième tube (5) peut tourner autour de l'axe médian longitudinal (7) du premier tube (1), l'ouverture (21) de l'embout (20) du deuxième tube (5) étant disposée, par référence au sens de circulation, en aval de l'orifice de sortie (22) du premier tube (1), de telle sorte que le flux d'air projeté hors de l'embout (20) fait dévier le flux de matériau de sablage projeté hors du premier tube (1), le premier tube (1), destiné à l'acheminement du matériau de sablage, étant relié à un réservoir de stockage du matériau de sablage.
  2. Dispositif selon la revendication 1, caractérisé en ce que le premier tube (1) est fixe et est rectiligne au moins dans la partie de son extrémité de projection.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'embout (20) coudé est conçu sous forme modulaire et est fixé de manière amovible contre le deuxième tube (5).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone d'extrémité du deuxième tube (5) vient en appui contre la zone d'extrémité du premier tube (1).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu un dispositif d'entraínement électrique ou pneumatique pour actionner le deuxième tube (5).
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit dispositif comporte un élément d'assemblage (2) équipé d'un stator (3) et d'un rotor (4), et en ce que le deuxième tube (5) est logé contre le rotor (4) en dehors de l'axe de rotation du rotor.
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier tube (1) est fixé contre le stator (3), et en ce que l'axe médian longitudinal (7) de celui-ci coïncide avec l'axe de rotation du rotor (4).
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que l'élément d'assemblage (2) comporte une première cavité annulaire (14), dans laquelle débouche une forure de raccordement (15) qui traverse le stator (3) depuis l'extérieur et dans laquelle passe l'air comprimé, en ce que le rotor (4) comporte une deuxième cavité annulaire (18), qui communique avec la première cavité annulaire (14) par une pluralité de forures (17) réalisées dans le rotor (4), et en ce que le deuxième tube (5) destiné à l'amenée d'air comprimé est relié à la deuxième cavité annulaire (18).
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout (20) du deuxième tube (5) est coudé par rapport à l'axe de rotation du rotor (7) selon un angle compris entre 30° et 90°, de préférence entre 50° et 70°.
  10. Dispositif selon l'une quelconque des revendications 6 à 9, caractérisé en ce qu'une zone d'extrémité (19) du rotor (4) s'avance en saillie au-delà du stator (3), au moins sur un côté, le rotor (4) étant muni dans cette zone (19) d'un élément de couplage (30), par l'intermédiaire duquel un moteur (6) est susceptible de lui appliquer un mouvement de rotation.
  11. Dispositif selon la revendication 10, caractérisé en ce que l'élément de couplage (30) est conçu en forme de disque denté.
  12. Procédé de sablage pour les parois de forures et les parois de tubes, dans lequel le matériau de sablage est acheminé par l'intermédiaire d'un tube d'acheminement (1), caractérisé en ce que le matériau de sablage est dévié à la sortie du tube d'acheminement (1) par un jet d'air qui tourne autour du tube d'acheminement (1).
  13. Procédé selon la revendication 12, caractérisé en ce que le matériau de sablage est accéléré par le jet d'air.
  14. Procédé selon la revendication 12 ou 13, caractérisé en ce que le matériau de sablage est dévié par rapport à l'axe de rotation (7) du jet d'air selon un angle compris entre 30° et 90°, de préférence entre 50° et 80°.
  15. Procédé selon l'une quelconque des revendications 12 à 14, caractérisé en ce que l'angle de déviation du matériau de sablage est influencé par l'angle d'impact du jet d'air contre le matériau de sablage et/ou la vitesse de l'air est influencée.
  16. Procédé selon l'une quelconque des revendications 12 à 15, caractérisé en ce que le matériau de sablage est acheminé au moyen d'air comprimé.
  17. Utilisation d'un dispositif d'application, qui comprend un premier tube (1) destiné à l'acheminement du matériau de sablage et un deuxième tube (5) destiné à l'amenée de l'air comprimé, le deuxième tube (5) étant muni d'un embout (20) qui dévie le jet d'air et pouvant tourner autour de l'axe médian longitudinal (7) du premier tube (1), l'ouverture (21) de l'embout (20) du deuxième tube (5) étant disposée, par référence au sens de circulation, en aval de l'orifice de sortie (22) du premier tube (1), de telle sorte que le flux d'air projeté hors de l'embout (20) fait dévier le flux de matériau de sablage projeté hors du premier tube (1), lequel dispositif d'application est utilisé comme dispositif de sablage pour les parois de forures et les parois de tubes, dans lequel le matériau de sablage utilisé est le sable ou un matériau à particules abrasives correspondant.
EP96810032A 1995-02-20 1996-01-16 Dispositif et procédé pour de sablage pour des parois d'alésages ou de tubes Expired - Lifetime EP0727282B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH484/95 1995-02-20
CH48495 1995-02-20
CH48495 1995-02-20

Publications (2)

Publication Number Publication Date
EP0727282A1 EP0727282A1 (fr) 1996-08-21
EP0727282B1 true EP0727282B1 (fr) 1999-10-06

Family

ID=4188068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810032A Expired - Lifetime EP0727282B1 (fr) 1995-02-20 1996-01-16 Dispositif et procédé pour de sablage pour des parois d'alésages ou de tubes

Country Status (8)

Country Link
US (1) US5582537A (fr)
EP (1) EP0727282B1 (fr)
JP (1) JP3619598B2 (fr)
KR (1) KR100374952B1 (fr)
AT (1) ATE185306T1 (fr)
CA (1) CA2168481C (fr)
DE (1) DE59603253D1 (fr)
ES (1) ES2140053T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018130598A1 (de) 2018-11-30 2020-06-04 ZELL Oberflächentechnik GmbH & Co. KG Vorrichtung, Umlenkstift und Verfahren zum Bearbeiten von Oberflächen in Totraumbohrungen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2443169A1 (fr) * 2002-12-19 2004-06-19 Sulzer Metco Ag Appareil pour travaux a ciel ouvert d'une piece a travailler ainsi que l'utilisation de cet appareil pour l'abattage a l'explosif de puits de forage
CA2505066C (fr) * 2005-04-04 2009-02-24 High Production Inc. Dispositif de projection d'abrasif a main
IT1396287B1 (it) * 2009-09-28 2012-11-16 Biesse Spa Distributore in continuo
DE102013109715A1 (de) * 2013-09-05 2015-03-05 Piller Entgrattechnik Gmbh Vorrichtung zum Aufrauhen der Zylinderbohrungen von Zylinderkurbelgehäusen
DE202017102179U1 (de) 2017-04-11 2018-04-13 Piller Entgrattechnik Gmbh Vorrichtung zum Aufrauen von Zylinderlaufflächen

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Publication number Priority date Publication date Assignee Title
DE585239C (de) * 1933-09-30 Prea G M B H Spritzpistole zum Anstreichen von schwer zugaenglichen Gegenstaenden
US2149526A (en) * 1937-06-30 1939-03-07 Oakite Prod Inc Device for cleaning surfaces
US2358557A (en) * 1942-06-26 1944-09-19 John G Boyd Blast cleaning device
GB631417A (en) * 1947-07-17 1949-11-02 Vauxhall Motors Ltd Improved method of and apparatus for shot or grit blasting internal surfaces
US2738231A (en) * 1955-02-07 1956-03-13 Clow James B & Sons Rotary spray gun
US2842095A (en) * 1956-05-15 1958-07-08 Leibner Robert Spraying device for lining the interior of small diameter pipes
US3654786A (en) * 1970-09-15 1972-04-11 Metal Improvement Co Metal surface treating apparatus for internal surfaces
CH571365A5 (fr) * 1974-07-22 1976-01-15 Fischer Ag Georg
DE3040995A1 (de) * 1979-11-09 1981-05-27 National Research Development Corp., London Vorrichtung zum erzeugen einer reinigungsspruehzerstaeubung
US4704826A (en) * 1981-06-26 1987-11-10 Kirkland Wyatt S Spin-blast tool
DE3336873A1 (de) * 1983-10-11 1985-04-25 Albert Ing.(grad.) 2800 Bremen Zimmer Duesenkopf fuer vorrichtungen zum feindosierten auftragen von fluessigen bis pastoesen medien auf oberflaechen
US5461407A (en) * 1992-09-02 1995-10-24 Telesis Marking Systems, Inc. Marking method and apparatus using gas entrained abrasive particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018130598A1 (de) 2018-11-30 2020-06-04 ZELL Oberflächentechnik GmbH & Co. KG Vorrichtung, Umlenkstift und Verfahren zum Bearbeiten von Oberflächen in Totraumbohrungen

Also Published As

Publication number Publication date
JP3619598B2 (ja) 2005-02-09
KR100374952B1 (ko) 2003-04-23
ATE185306T1 (de) 1999-10-15
CA2168481A1 (fr) 1996-08-21
US5582537A (en) 1996-12-10
KR960031062A (ko) 1996-09-17
CA2168481C (fr) 1999-01-19
ES2140053T3 (es) 2000-02-16
DE59603253D1 (de) 1999-11-11
EP0727282A1 (fr) 1996-08-21
JPH08229824A (ja) 1996-09-10

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