EP0574771B1 - Installation d'abrasif - Google Patents

Installation d'abrasif Download PDF

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Publication number
EP0574771B1
EP0574771B1 EP93108884A EP93108884A EP0574771B1 EP 0574771 B1 EP0574771 B1 EP 0574771B1 EP 93108884 A EP93108884 A EP 93108884A EP 93108884 A EP93108884 A EP 93108884A EP 0574771 B1 EP0574771 B1 EP 0574771B1
Authority
EP
European Patent Office
Prior art keywords
storage tank
conduit
abrasive
tube
diffuser
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
EP93108884A
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German (de)
English (en)
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EP0574771A1 (fr
Inventor
Ivan Markocic
Aleksander Gerbec
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
Priority claimed from SI9200122A external-priority patent/SI9200122A/sl
Priority claimed from SI9300204A external-priority patent/SI9300204A1/sl
Application filed by Individual filed Critical Individual
Publication of EP0574771A1 publication Critical patent/EP0574771A1/fr
Application granted granted Critical
Publication of EP0574771B1 publication Critical patent/EP0574771B1/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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/45—Scale remover or preventor
    • Y10T29/4506—Scale remover or preventor for hollow workpiece
    • Y10T29/4511—Interior surface

Definitions

  • the present invention relates to an abrasive system for surface treatment using an abrasive. More specifically, the object according to the invention falls in the field of surface treatment by grinding or similar blasting with particulate material.
  • An abrasive system e.g. for irradiating the inner surfaces of pipes has become known from US 3,824,738.
  • the blasting medium and the material blasted from the tube are sucked off from a free end of the tube by means of air flow generated by a rotating wheel during the blasting process.
  • the system has a carriage which can be extended and retracted into or out of a tube, a centrifugal wheel which is rotatably mounted on a tubular housing, the latter being arranged on the front part of the carriage, a screw conveyor for supplying abrasive to the centrifugal wheel and one behind the Casing arranged on the centrifugal wheel in order to reduce the usable pipe cross section.
  • the rotating centrifugal wheel is inserted into the free tube end and, as it moves through the tube, creates an air flow that drives out the abrasive and the material blasted from the tube through the opposite free tube end.
  • the abrasive is then separated from the material that was blasted from one pipe and applied to other pipes.
  • a disadvantage of the system mentioned is that when the pipes are blasted, the length of which is usually between 6 and 12 m, it takes up a relatively large area in plan view.
  • the length of the system is namely at least twice the pipe length, i.e. the length of the tube and that of the mandrel to which the carriage is attached, which takes up relatively large spaces for arranging such systems.
  • Another disadvantage of the known system is that the length of the delivery line, through which the abrasive is returned from the pipe outlet to the storage boiler, is relatively large and even three to four times the length of the irradiated pipe. As a result, the individual components are these Delivery line is exposed to a large amount of wear from the abrasive, which significantly shortens its life.
  • a blasting agent system is known from DE-B-11 42 298.
  • This system has a centrifugal turbine as a centrifugal device, an abrasive being thrown onto a surface of a workpiece by means of the centrifugal device, an abrasive storage tank having the same longitudinal axis as the centrifugal device and being in the area immediately below the centrifugal device, and the abrasive from the storage tank in the centrifugal device is conveyed by means of a conveying device.
  • the object of the invention is to develop the known abrasive system so that a simple and effective return of abrasive is possible.
  • a blasting agent storage vessel with the same longitudinal axis as a centrifugal turbine or a centrifugal diffuser is arranged and lies in the area immediately below.
  • the blasting agent is fed from the storage boiler either into the turbine or the diffuser through a relatively short delivery pipe which connects the turbine or the diffuser to the storage boiler.
  • the abrasive is conveyed through the tube in various ways; e.g. by means of a conveying air flow which is generated by the suction effect of the turbine or the diffuser and / or is introduced through a binding blow-in tube, or by means of a screw conveyor which is arranged in the said conveying tube.
  • An embodiment of the blasting agent system according to the invention has an injector centrifugal diffuser, to which a pipe socket is assigned at the first longitudinal entry end and a delivery pipe at the second longitudinal entry end.
  • the free end of the latter is closed off by means of a basket-like storage kettle, the delivery pipe being equipped with a series of radial cutouts in the region of the connection to the bottom of the storage kettle.
  • the inner sides of the pipe socket and the delivery pipe are connected to one another by a binding blow-in pipe which essentially projects into the delivery pipe through the bottom of the storage tank.
  • the latter is formed with a series of radial recesses in the area of its free end.
  • the conveyor tube is connected at one end to a suction side of the turbine-like centrifugal device and at its other end, ie the free end, to the bottom of the basket-like storage vessel.
  • a rotatable loosening pipe Coaxial with the feed pipe and forming a clearance fit, there is a rotatable loosening pipe which is fixedly connected to the rotor and is formed at its free end, in the area of the recesses on the feed pipe, with a row of evenly spaced loosening teeth at the end.
  • the rotor is assigned an axially non-rotatable tube which, with its opposite end, penetrates the bottom of the storage vessel and forms a firm connection with the bottom.
  • a rotatable elevator tube is arranged coaxially with said tube and is provided with a screw on its inner surface.
  • the elevator tube is fixedly connected to the rotor and extends in the longitudinal direction essentially to the bottom of the storage vessel, a distance being provided between the latter and the free end of the tube.
  • the system according to the invention can e.g. be used to irradiate the flat outer surface, in this embodiment both the centrifugal turbine or the diffuser and the reservoir are arranged in a housing.
  • this has a correspondingly designed outlet opening for the blasting agent, which is encased with a suitable protective shield that fits the treated surface.
  • the blasting agent is fed from the area of the bottom of the storage vessel into the centrifugal turbine or the diffuser through a relatively short delivery pipe, one of the delivery types described above being able to be used for this.
  • that part of the jacket wall of the basket-like storage vessel which is closer to the centrifugal device in the axial direction is essentially designed as a radially flexible fine grid, to which a funnel-shaped shield made of elastic material and radially flexible is assigned in the axial direction.
  • the abrasive storage tank mentioned can also be designed as a cyclone separator.
  • a blasting agent system according to the invention is shown as a system for blasting the inner surfaces of pipes.
  • Such a system for irradiating the inner surfaces of pipes can also be used as a system for irradiating flat outer surfaces either of pipes or workpieces of different profiles, flat workpieces, such as e.g. Ship flanks, etc. can be used.
  • An abrasive system for e.g. Irradiation of the inner surfaces of pipes consists of an injector centrifugal diffuser 1, which is assigned a pipe socket 2 at its first longitudinal end, possibly the upper one. Its free end serves to receive a flexible supply hose of pressurized drive air, which is known per se and is not shown in the drawing.
  • the other longitudinal entry end of the injector diffuser 1, possibly the lower one, is assigned a delivery pipe 3, the free end of which is closed off with a blasting agent supply vessel 4 in such a way that the delivery pipe 3 is centered on the bottom of the supply vessel 4 and its jacket wall in the direction toward the diffuser 1 diverges, is arranged.
  • the delivery pipe 3 is equipped with a series of radial cutouts 5 which serve for the entry of the blasting agent.
  • the inside of the pipe socket 2 and that of the delivery pipe 3 are connected by means of a binding blow-in pipe 6, the latter being connected to the pipe connection 2 in the region of the upper end of the injector diffuser 1 and protruding through the bottom of the storage vessel 4 into the delivery pipe 3.
  • the jacket wall part of the basket-like storage vessel 4, which is located in the vicinity of the injector diffuser 1, is essentially seen in the axial direction as a radially flexible fine grid 7, which is only permeable to the dust particles formed during the irradiation. Furthermore, the said fine grid 7 is in the axial direction made of elastic material and also radially flexible funnel-shaped shield 8 is assigned, which lies close to the inner surface of the tube 9 to be irradiated during operation of the system according to the invention.
  • a pair of ribs 10 is arranged, on each of which a guide wheel unit 10 'is arranged.
  • This has a known, spring-supported lever 11 which is rotatably mounted in the radial direction of the tube 9 and on the free end of which a support wheel 12 is rotatably mounted.
  • the respective lever 11 is guided radially by means of a rod-shaped guide 13, which is rotatably mounted on the respective rib 10, a compression spring 14 being attached, which is arranged between the respective lever 11 and the rib 10.
  • a fastening projection 15 is arranged on the side of the bottom of the storage vessel 4 facing away from radial recesses 5 of the delivery pipe 3, said fastening projection having a pair of opposing ribs 10, on which the wheel unit 10 ′ described above is arranged.
  • the inner surface of the tube 9 is irradiated in either a horizontal or vertical position, etc. such that the system in question is pushed into the tube 9 according to the invention, being leaned closely against the wall of the tube 9 with pairs of wheel units 10 'and the radially flexible shield 8.
  • the compressed air flow (arrow A) is supplied to the pipe socket 2 through a supply line (not shown in more detail), which partially flows through the bottom of the storage boiler 4 via the binding blow-in pipe 6 (arrow B). This, the so-called primary compressed air flow, sucks the blasting medium through the radial recesses 5 of the delivery pipe 3 and pushes it upwards through the latter.
  • the secondary compressed air flow also contributes to this, ie the compressed air flow that remains in the pipe socket 2 after the primary compressed air flow has been discharged via the binding blow-in pipe 6.
  • the secondary compressed air flow flows through the diffuser 1 (arrow C), forming an overpressure in the storage vessel 4, which, as already mentioned, pushes the blasting agent additionally through the cutouts 5 (arrow D).
  • the secondary compressed air flow that flows through the diffuser 1 also creates a negative pressure in the delivery pipe 3, which additionally accelerates the flow of the blasting agent, which is thrown radially against the inner surface of the pipe 9 by the rapid compressed air flow (arrow E).
  • the blasting agent then falls into the storage vessel 4 and the dust particles are pushed through the fine grid 7 by means of the compressed air flow.
  • the blasting agent system according to the invention is pushed along the tube 9 until the entire inner surface is irradiated.
  • FIG. 2 Another exemplary embodiment of the system according to the invention has a turbine-like centrifugal device 16 known per se, which consists of a stator 17 and a pneumatically driven rotor 18 (not shown in detail in FIG. 2).
  • the rotor 18 is assigned the rotationally fixed delivery pipe 3, which, like in the first exemplary embodiment, is formed with a series of radial recesses 5 in the region of its free end and is connected with its first end to the suction side of the turbine device 16.
  • the other i.e.
  • the free end of the tube 3 is attached to the bottom of the basket-like storage vessel 4, which, as in the first exemplary embodiment, is associated with the essentially radially flexible fine grid 7, which is permeable only to the dust particles formed during irradiation. Furthermore, the aforementioned fine grid 7 is associated in the axial direction with the funnel-shaped shield 8, which is made of elastic material and is also radially flexible, and which, when the system according to the invention is in operation, rests closely against the inner surface of the tube 9 to be irradiated.
  • the loosening tube 19 is formed on the end face with a row of evenly spaced loosening teeth 20.
  • the storage vessel 4 is formed on the side of its bottom facing away from the radial recesses 5 of the delivery pipe 3 and the stator 17 on its side facing away from the suction side of the device 16 each with a projection 21, 21 ′ which has a pair of radial ribs 22, on which the wheel unit 10 'described above is arranged.
  • the inner surface of the tube 9 is irradiated essentially in a vertical position.
  • the blasting agent system according to the invention is introduced into the pipe 9 so that it is leaned closely against the wall of the pipe 9 with pairs of wheel units 10 'and the radially flexible shield 8.
  • the loosening pipe 19 also begins to rotate, which with a series of loosening teeth 20 swirls and loosens the abrasive located in the reservoir.
  • the rotation of the rotor 18 causes a pressure drop in the delivery pipe 3, as a result of which the abrasive is sucked into the delivery pipe and further into the rotor 18 (arrow E) and then is thrown radially outward onto the wall of the pipe 9 by means of its blades (arrow G) .
  • the abrasive collects in the storage tank 4 and the dust particles are blown through by means of an air stream the fine grid 7 pressed through.
  • the blasting agent system according to the invention is pushed along the tube 9 until the entire inner surface is irradiated.
  • FIG. 3 Another embodiment of the blasting agent system for blasting the inner surfaces according to the invention consists of a turbine-like centrifugal device 16 known per se, which has a stator 17 and e.g. has a pneumatically or electrically driven rotor 18 (not detailed in FIG. 3).
  • the rotor 18 Viewed in the axial direction, the rotor 18 is assigned a non-rotatable tube 23, which with its opposite end penetrates the bottom of the storage vessel 4 and forms a fixed connection with the bottom.
  • the storage vessel 4 is assigned an essentially radially flexible fine grid 7, which is permeable only to the dust particles formed during the irradiation.
  • the aforementioned fine grid 7 is associated in the axial direction with the funnel-shaped shield 8, which is made of elastic material and is also radially flexible, and which, when the system according to the invention is in operation, rests closely against the inner surface of the tube 9 to be irradiated.
  • a rotatable elevator tube 24 is arranged coaxially with the tube 23, which is formed on its inner surface with a worm 25 and is fixedly connected to the rotor 18.
  • the elevator tube 24 extends longitudinally essentially to the area of the bottom of the storage vessel 4, a distance being provided between the latter and the free end of the elevator tube 24, which enables the blasting agent to pass freely.
  • the storage vessel 4 is formed on the side of its base facing away from the free end of the elevator tube 3 and the stator 17 is formed on its side facing away from the suction side of the device 16 with a pair of radial ribs 26, each of which has the wheel unit 10 ′ described above. carry.
  • the inner surface of the tube 9 is irradiated essentially in a vertical position.
  • the blasting agent system according to the invention is introduced into the tube 9 so that it is leaned closely against the wall of the tube 9 with pairs of wheel units 10 'and the radially flexible shield 8.
  • the elevator tube 24 also begins to rotate with the screw conveyor 25, which conveys the blasting medium located in the storage vessel 4 into the turbine device 16 (arrow H).
  • Rotation of the rotor 18 causes the blasting medium to be thrown radially outward onto the wall of the tube 9 by means of its blades (arrow J).
  • the abrasive collects in the storage tank 4 and the dust particles are removed by means of Air flow pressed through the fine grid 7.
  • the blasting agent system according to the invention is pushed along the tube 9 until the entire inner surface is irradiated.
  • the system according to the invention can e.g. to irradiate a flat outer surface.
  • both the centrifugal turbine 16 or the centrifugal diffuser 1 and the storage boiler 4 are arranged in a correspondingly designed housing 27.
  • this has a correspondingly designed outlet opening 28 for the blasting agent, which is encased with a suitable protective shield 30 adapted to the treated surface 29.
  • the protective shield 30 adapts precisely to the treated surface, so that the blasting agent is prevented from escaping into the environment.
  • the lower part of the protective shield 30 is designed in a slide-like manner so that the blasting agent slides back into the storage vessel 4 through it.
  • the blasting agent is fed from the area of the bottom of the storage vessel 4 into the centrifugal turbine 16 or the diffuser 1 through the relatively short delivery pipe 3, whereby one of the delivery types described above can be used for this.
  • the operation of the system for irradiating the outer surface corresponds to the operation according to the exemplary embodiments described above, so that it is not necessary to repeat what has already been described.
  • the dust produced during the irradiation is collected by means of a suction / dedusting device which is not known and is known per se and which must form a negative pressure in the treated tube 9 or housing 27 in order to prevent dust from entering the surroundings.
  • the storage tank 4 can also be designed as a cyclone separator in all examples.
  • the blasting agent system according to the invention can be successfully used for blasting the inner surfaces, in particular pipes, as described above with reference to the exemplary embodiments.
  • system according to the invention with constructional measures that do not exceed the scope and essence of the invention, also in other areas, such as, for example, irradiation of the outer surfaces of the pipes or workpieces of different profiles, flat workpieces, such as ship flanks, etc ., is applicable.
  • the energy consumption in the abrasive system according to the invention is surprisingly significantly reduced (even three to four times). At the same time, this also means a substantial reduction in the irradiation costs per m 2 of the irradiated surface, the cost savings with respect to the system according to the prior art being up to 95%.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Screw Conveyors (AREA)
  • Nozzles (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Claims (11)

  1. Installation de sablage, comprenant un dispositif de dosage (1; 16), qui présente une turbine de dosage (16) ou un diffuseur de dosage (1), pour le dosage d'un agent de sablage sur une surface d'une pièce, et comportant une cuve de réserve (4) d'agent de sablage qui est disposée sur le même axe longitudinal que le dispositif de dosage et est située dans la région située immédiatement en dessous du dispositif de dosage, ainsi qu'un dispositif de transport (3; 23, 24, 25) pour amener l'agent de sablage depuis la cuve de réserve jusque dans le dispositif de dosage, caractérisée en ce que l'installation est prévue pour le traitement de surfaces situées verticalement, en ce qu'après avoir rebondi sur la surface, l'agent de sablage est ramené dans la cuve de réserve (4) sous l'action de la pesanteur, et en ce qu'il est amené depuis la cuve de réserve (4) jusque dans le dispositif de dosage (1; 16) par un tube de transport (3; 23) relativement court qui relie le dispositif de dosage à la cuve de réserve.
  2. Installation de sablage selon la revendication 1, caractérisée en ce que la cuve de réserve (4) d'agent de sablage est configurée en forme de panier.
  3. Installation de sablage selon les revendications 1 ou 2, caractérisée en ce que la partie de la paroi d'enveloppe de la cuve de réserve (4) en forme de panier qui est la plus proche du dispositif de dosage (1; 16) dans la direction axiale, est configurée essentiellement sous la forme d'une grille fine (7) déformable radialement à laquelle un écran (8) en forme d'entonnoir, déformable radialement, réalisé en un matériau élastique, se raccorde dans la direction axiale.
  4. Installation de sablage selon la revendication 1, caractérisée en ce que le dispositif de dosage (1; 16) et la cuve de réserve (4) sont disposés dans un boîtier (27), et en ce que dans la région du dispositif de dosage est prévue une ouverture de sortie (28) pour l'agent de sablage, laquelle ouverture est entourée par un écran de protection (30).
  5. Installation de sablage selon la revendication 4, caractérisée en ce que la partie inférieure de l'écran de protection (30) présente la forme d'une glissière pour renvoyer l'agent de sablage dans la cuve de réserve (4).
  6. Installation de sablage selon l'une des revendications 1 à 5, caractérisée en ce que l'agent de sablage est dosé radialement contre la surface de la pièce, au moyen d'une turbine ou d'un diffuseur, et l'agent de sablage est transporté à travers le tube de transport (3) au moyen d'un écoulement d'air de transport qui est créé par l'effet d'aspiration de la turbine (16) ou du diffuseur (1) et/ou est amené par l'intermédiaire d'un tube de soufflage et de raccordement (6), ou au moyen d'une vis de transport (24, 25) qui est disposée dans le tube de transport (3).
  7. Installation de sablage selon la revendication 6, caractérisée en ce qu'à la première extrémité d'entrée du diffuseur (1) à injecteurs de dosage est associé un raccord tubulaire (2) et qu'à la deuxième extrémité d'entrée est associé le tube de transport (3) dont l'extrémité libre est fermée par la cuve de réserve (4) en forme de panier, le tube de transport (3) présentant dans la région du raccord au fond de la cuve de réserve (4) des découpes radiales (5), le raccord tubulaire (2) et le tube de transport (3) étant reliés l'un à l'autre par le tube de soufflage et de raccordement (6) qui déborde dans le tube de transport (3) en dessous du fond de la cuve de réserve (4), tandis que sur le fond de la cuve de réserve (4) et sur le raccord tubulaire (2), deux nervures (10) sont chaque fois disposées, qui présentent chacune une unité de roue de guidage (10').
  8. Installation de sablage selon la revendication 6, caractérisée en ce que la turbine de dosage (16) présente un rotor (18) et un stator (17), le tube de transport (3) empêché de tourner, dont l'extrémité libre est fermée par la cuve de réserve (4) en forme de panier, étant associé dans la direction axiale au rotor (18), lequel tube de transport (3) présente dans la région du raccord avec le fond de la cuve de réserve (4) des découpes radiales (5), tandis qu'un tube rotatif de désagrégation (19) qui, à son extrémité libre, dans la région des découpes radiales (5) du tube de transport (3), est doté sur son côté frontal d'une série de dents de désagrégation (20) espacées régulièrement, est disposé coaxialement par rapport au tube de transport (3) en formant un jeu d'adaptation, relié à rotation solidaire au rotor (18), et que sur le fond de la cuve de réserve (4) et sur le stator (17), deux nervures radiales (22), sur chacune desquelles est disposée une unité (10') de roue de guidage, sont formées.
  9. Installation de sablage selon la revendication 6, caractérisée en ce que la turbine de dosage (16) présente un rotor (18) et un stator (17), le tube de transport (23) empêché de tourner, qui traverse le fond de la cuve de réserve (4) par son extrémité opposée et qui forme avec le fond une liaison fixe, étant associée dans la direction axiale au rotor (18), un tube rotatif de relèvement (24), qui est doté d'une vis sans fin (25) sur sa surface interne et qui est relié à rotation solidaire au rotor (18), et qui s'étend dans la direction longitudinale essentiellement jusque dans la région du fond de la cuve de réserve (4), est disposé coaxialement par rapport au tube de transport (23), tandis qu'entre la cuve de réserve et l'extrémité libre du tube de relèvement (24) est prévu un interstice, et que deux nervures radiales (26), qui portent chacune une unité (10') de roue de guidage, sont formées tant sur le fond de la cuve de réserve (4) que sur le stator (17).
  10. Installation de sablage selon l'une des revendications 7 à 9, caractérisée en ce que l'unité (10') de roue de guidage présente un levier (11) s'appuyant sur un ressort et monté à rotation dans la direction radiale, à l'extrémité libre duquel une roue d'appui (12) est montée de manière à pouvoir tourner, chaque levier (11) étant guidé radialement au moyen d'un guide (13) en forme de barre qui est monté à rotation sur chacune des nervures (10, 22, 26), et est enfiché sur un ressort de poussée (14).
  11. Installation de sablage selon l'une des revendications 1 à 10, caractérisée en ce que la cuve de réserve (4) est configurée comme séparateur à cyclone.
EP93108884A 1992-06-19 1993-06-02 Installation d'abrasif Expired - Lifetime EP0574771B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SI9200122A SI9200122A (sl) 1992-06-19 1992-06-19 Naprava za notranje peskanje, zlasti cevi
SI9300204A SI9300204A1 (sl) 1993-04-19 1993-04-19 Naprava za peskanje
SI9300204 1993-04-19
SI9200122 1993-04-19

Publications (2)

Publication Number Publication Date
EP0574771A1 EP0574771A1 (fr) 1993-12-22
EP0574771B1 true EP0574771B1 (fr) 1997-04-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108884A Expired - Lifetime EP0574771B1 (fr) 1992-06-19 1993-06-02 Installation d'abrasif

Country Status (7)

Country Link
US (1) US5573450A (fr)
EP (1) EP0574771B1 (fr)
JP (1) JPH0639720A (fr)
AT (1) ATE152024T1 (fr)
DE (1) DE59306235D1 (fr)
DK (1) DK0574771T3 (fr)
ES (1) ES2103400T3 (fr)

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US6739956B2 (en) * 2001-10-30 2004-05-25 Valiant Corporation Apparatus for cleaning engine block passages
JP5066430B2 (ja) * 2007-11-20 2012-11-07 日本発條株式会社 ショットピーニング用反射部材およびそれを用いたショットピーニング方法
US8402637B2 (en) * 2008-11-04 2013-03-26 Chief Automotive Technologies, Inc. Vehicle fixture with alignment target
EP2699384B1 (fr) * 2011-04-20 2015-03-18 Menegon, Ennio Dispositif d'affûtage pour lame tranchante
GB2533092A (en) * 2014-12-08 2016-06-15 Pipeline Induction Heat Ltd A machine for cleaning a section of pipeline
JP6547226B2 (ja) * 2015-09-01 2019-07-24 ウラカミ合同会社 遠心回転式粒体貯蔵タンク及び管内面への粒体投射装置
CN109129209A (zh) * 2018-09-19 2019-01-04 四川西南环保科技防腐股份有限公司 用于管道内补口的抛丸车
RU192650U1 (ru) * 2019-03-29 2019-09-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Устройство для очистки внутренних поверхностей труб
CN112975763B (zh) * 2021-04-24 2022-07-08 杭州泓林科技有限公司 钢管内壁除锈机行走机构、行走方法及其偏心轮和行走架

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ES2103400T3 (es) 1997-09-16
ATE152024T1 (de) 1997-05-15
US5573450A (en) 1996-11-12
DK0574771T3 (da) 1997-10-27
EP0574771A1 (fr) 1993-12-22
DE59306235D1 (de) 1997-05-28
JPH0639720A (ja) 1994-02-15

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