EP0996845B1 - Procede et dispositif pour enlever et/ou oter en les brisant des couches ou des zones situees dans des substrats - Google Patents

Procede et dispositif pour enlever et/ou oter en les brisant des couches ou des zones situees dans des substrats Download PDF

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Publication number
EP0996845B1
EP0996845B1 EP98936107A EP98936107A EP0996845B1 EP 0996845 B1 EP0996845 B1 EP 0996845B1 EP 98936107 A EP98936107 A EP 98936107A EP 98936107 A EP98936107 A EP 98936107A EP 0996845 B1 EP0996845 B1 EP 0996845B1
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EP
European Patent Office
Prior art keywords
drums
milling
hydraulic
drum
rotary
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
EP98936107A
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German (de)
English (en)
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EP0996845A1 (fr
Inventor
Harald Mikat
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Tml Technik Teleskopsysteme GmbH
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Tml Technik Teleskopsysteme GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B22D41/026—Apparatus used for fracturing and removing of linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1694—Breaking away the lining or removing parts thereof

Definitions

  • the invention relates to a method for removing and / or Breaking out of layers or areas from substrates, for example surface and contour milling for profiling Refurbishing channels, molds, pans, converters and Slag collection containers, for cleaning electric furnaces and for Removal of contaminated waste and contaminated layers in asbestos removal, in which one by a hydraulic motor driven milling head equipped with milling bits is brought with the area of the subsurface to be removed, the milling head being moved by a telescopic arm Vehicle with uppercarriage held in milling position and in Removal direction is shifted.
  • the invention also relates to a device for ablation and / or breaking out of layers or areas Surfaces, for example surface and contour milling for profiled processing of channels, molds, pans, Converters and slag collection containers, for cleaning Electric ovens and for removing contaminated waste as well contaminated layers during asbestos removal, with one along the mobile vehicle to be processed,
  • excavators that have a swiveling superstructure has on which a hydraulically pivotable and rotatable Telescopic arm is articulated, which one at its front end Holder for a driven by a hydraulic motor Has a milling tool that carries several milling tools.
  • pig iron In metallurgical technology, pig iron is melted in blast furnaces and in further treatment in converters and electric furnaces. The molten pig iron is transported in troughs or pans that have a fire-resistant inner lining consisting of permanent lining and wear lining. The wear lining is continuously removed by the pig iron, possibly damaged and must therefore be removed and replaced at regular intervals. The permanent lining must not be damaged when removing the wear lining. In the event of damage, the molten pig iron comes into contact with the support structure, which causes major consequential damage. As is known, the wear lining is broken out of the gutter assembly manually using hydraulic / pneumatic hammers or tearing tools. This known method of operation often leads to damage to the permanent feed, so that complex and costly repairs have to be made to the channels.
  • DE 32 25 015 C1 attempts to remedy these disadvantages by means of a device for cleaning refractory-lined conveying troughs for molten metals and slags by means of rotating chains, in that a drum, which is driven by an infinitely variable motor, is provided with chains, rotating drum arranged parallel to the bottom of the conveying trough to solve, which can be moved horizontally and vertically to the conveyor trough with the help of a longitudinally above the conveyor trough, guided in rails frame.
  • the quickly rotating drum with chain represents a cleaning head that is guided over the channel walls to be processed. Washings can be removed from the wear lining, but a targeted surface removal does not allow this known method of working. The risk of uncontrolled removal and damage to the permanent feed remains.
  • the rail-bound frame significantly limits the possible uses.
  • DE 31 36 236 A1 discloses a device for excavating blast furnace channels or other channels provided with a refractory lining, which discloses a portable excavating device which has a lifting and lowering milling arm with a driven rotating milling head.
  • This excavation device is provided with its own undercarriage in the form of a caterpillar or wheel undercarriage.
  • the milling arm can be swiveled in height and also swiveled sideways on the machine frame and is designed as an articulated boom. At the lower free end of the boom, it carries a milling head consisting of two milling disks, which rotate around a common axis of rotation.
  • a hydraulic slow-speed motor or a high-speed motor with gear reduction serves to drive the milling discs.
  • a machine for cutting trenches in rock in which a telescopic arm carries a cutting head at its front end. At the point of articulation of the cutting head, an additional hydraulic pressure arm acts, which prevents the cutting head from vibrating and bouncing during engagement.
  • This known machine is designed to cut trenches from 35 to 62 cm wide and up to 4.5 m deep.
  • the cutting head is driven by an electric drive via a gear and is designed as a double cut-off machine, the discs of which are fitted with tungsten carbide teeth.
  • the two disks rotate about a common axis in the same direction, but can also be designed as milling cutters which are arranged axially parallel next to one another and rotate in opposite directions.
  • milling cutters which rotate in opposite directions, do not prevent vibrations and vibrations during cutting, but rather the milling arms are held in the cutting position by the pressure arm against the vibrating forces. They are dimensioned for high cutting performance at high speeds.
  • the pressure forces used to overcome the vibration forces are far too high to be able to process refractory bricks, for example channels for liquid pig iron, with this known solution.
  • the high pressure forces inevitably destroy the permanent feed, which entails the disadvantages described above.
  • FR-A-2 395 387 describes a boring machine with a tool head which is wringing on a telescopic arm and which consists of two tools which, by means of their own hydraulic motors, run in opposite directions about parallel vertical longitudinal axes become rotating drives.
  • the object of the invention based on a method and a device of the introduction to improve the type mentioned in such a way that a controlled and selective removal of surface layers and areas Refractory linings or contaminated substrates largely vibration-free with a significant reduction in Holding forces for the milling cutters, reducing downtimes, Heat and dust pollution and at the same time Improvement in processing quality is achieved.
  • the invention is also based on the object of compactness increase the milling device, shorten its set-up times and their ease of maintenance and ease of use are noticeable improve by reducing the weight.
  • the object is achieved according to the invention with a method as mentioned at the outset, wherein at least two, but even-numbered axially parallel, counter-rotating drums, each driven directly by a slow-running hydraulic drive, are used, the rotating milling bits on a helix line coming into engagement one after the other and with a small lateral offset, and wherein simultaneously with the counter-rotating movement of the individual drums, both drums are given a controlled co-rotating movement about a common axis parallel to the axes of rotation of the individual drums.
  • This controlled rotation can be either a left or a right turn.
  • a force compensation of the cutting forces is thereby achieved, whereby the vibrations and shocks which occur when the milling tools are engaged can be kept very low and the holding forces for the cutting head can be reduced.
  • Exceptional flexibility and maneuverability is achieved through a preferred embodiment of the invention
  • drums move at the same speed their axis of rotation.
  • drums move around their rotary axes at different speeds.
  • Another preferred embodiment of the method according to the invention provides that the speed of the drums is adjusted by regulating the oil volume flow of the drives. This is done using a volume flow controller that distributes the oil volume flow evenly between the two drives and also keeps it constant.
  • a parallel connection is particularly advantageous for the hydraulic connection of the drives. Both drives then work with the same efficiency at the design point, the speeds of both drives are the same regardless of the torque, and the direct drive enables the drives to have a low overall height. With a series connection, the pressure difference is automatically distributed to both drives, which then have the same speed.
  • the milling head has at least two, but even-numbered, drums has whose axes of rotation parallel to each other and side by side are arranged and of which each Trommei several at the Chisels arranged on the front and circumference on a spiral line has, with the coils in opposite directions to each other around the drums and the chisels run towards each other on the spiral lines are distributed so that no milling axial Power components arise, and each drum has a separate, hydraulic drive is assigned, the drive shaft with the respective axis of rotation of the drum is aligned by bearings a non-rotating tubular inner part of the drum rotatable supported in this and with an outer the chisels arranged in a sleeve-like manner around the inner part bearing outer part of the drum in connection on the drive side stands, the drives of a common one Fastening plate housing are enclosed in the on a central axis parallel to the axes of rotation hydraulic swivel device for rotating
  • the vehicle is brought into the working position by the Telescopic arm with articulated counter-rotating, the Drums carrying milling cutters in the direction of the processing zone is brought into engagement with the subsurface.
  • the vehicle can then either to the side of the processing zone, for example a pig iron gutter, or in flight from the zone stand.
  • the drives are designed for quick assembly and maintenance Plug-in units designed with their drive shaft in the Inserted inner part and with a holding flange on the Mounting plate are attached.
  • the outer part of the drum has a collar which means a seal against the mounting plate are sealed.
  • the swivel device consists of a device hydraulic rotating union and rotating device. This poses sure that the milling head with its two rotating in opposite directions Drum an additional rotation around a common axis can perform.
  • the chisel-bearing outer part of the drum is designed to be exchangeable according to a further expedient embodiment of the invention.
  • the front of the outer part is non-positively connected to the drive shaft.
  • the outer part of the drum preferably has a spherical, spherical or concave shape.
  • the milling cutters are advantageously arranged in exchangeable form in receptacles on the circumference and on the end face of the outer part of the drum.
  • Suitable milling chisels are standard round shank chisels.
  • a suction device can optionally be attached near the milling bits, with the help of which excessive dust can be suctioned off without problems.
  • the invention makes it possible to specifically refurbish refractory linings from channels, molds, pans, converters and slag collection containers, to clean electric furnaces and to remove contaminated layers.
  • the method of operation according to the invention allows surfaces to be processed selectively without the permanent lining being damaged in refractory linings by shocks, vibrations and excessive holding forces.
  • the solution according to the invention achieves an extraordinarily high degree of flexibility not only in surface machining but also in surface machining of different profiles. Only the outer shape of the outer part of the drum needs to be varied. Spherical, concave or other geometric shapes are suitable, so that it is also possible to machine corner areas. It is also possible to transmit high torques and at the same time optimally absorb the management and delivery staff.
  • the omission of the transmission is the one according to the invention Device more compact in design, but also at the same time safer because the milling head is largely seized is avoidable. Due to their variable working widths increase the area performance and due to their higher effectiveness the disposal and operating costs of the device decrease.
  • the relatively lower weight of the invention Device means less power consumption and one more efficient use of energy.
  • FIG. 1 shows a mobile excavator 1 with a crawler chassis 2, on which there is an uppercarriage 3 , which can be pivoted sideways about the axis AA on the chassis 2 .
  • a telescopic arm 4 is attached to the superstructure 3 so that it can be adjusted in height, so that the infeed angle ⁇ of the telescopic arm 4 relative to the processing zone 5 can be changed.
  • 1 shows an infeed angle ⁇ of 22 to 31 °, for example.
  • a telescopic arm 4 can be rotated about its longitudinal axis BB indefinitely (see arrow I, FIG. 2).
  • the telescopic arm 4 can also be shortened or extended by retracting or extending the telescopic tube (arrow II). As shown in FIG.
  • a receptacle 6 is articulated at the front end of the telescopic arm 4 , which enables the receptacle 6 to move about 120 ° (arrow III).
  • the receptacle 6 carries a milling head 8.
  • the milling head 8 consists of two counter-rotating (see arrow IV) drums 9, a housing 10 and a truss housing 11 with a truss plate 12. This truss plate 12 is fastened to the plate 7 belonging to the receptacle 6 by screw connections, not shown. If the receptacle 6 performs a pitching movement, the milling head 8 follows this movement.
  • the drives 21 of the drums 9 are accommodated in the housing 10 , which in turn is rotatable relative to the truss housing 11 (arrow V).
  • milling chisels 13 round shank chisels
  • receptacles 14 on the outer circumference and the end face (FIG. 3).
  • the housing 10 of the milling head 8 has a mounting plate 15 is bolted to an upstanding from the plate 15 the wall 16, the pressure-tight manner by a housing cover 17th
  • Each drum 9 consists of a non-rotating tubular inner part 18, which is also part of the mounting plate 15 of the housing 10 and insertion openings 19 for receiving a drive shaft 20 of a hydraulic drive 21.
  • This hydraulic drive 21 for example a radial piston motor, is attached to its mounting flange 22 the mounting plate 15 screwed into the housing.
  • the drive shaft 20 is supported twice against the inner part 18 , on the one hand near the insertion opening 19 with a fixed bearing 23 which consists of a two tapered roller bearing in an X arrangement and on the other hand with a double row full complement floating bearing 24 which is located near the end of the shaft.
  • the drive shaft 20 itself increases in diameter gradually towards the shaft end, so that the greatest possible torque is applied to the shaft end and a great bending stiffness is achieved.
  • the drum 9 also includes a sleeve-shaped outer part 25 which carries the chisel receptacles 14 on the end and circumference, in which the chisels 13 are held.
  • the end face of the outer part 25 is non-positively connected to the end face of the drive shaft 24 by a screw connection, so that the rotational movement of the shaft 20 is transmitted directly to the outer part 25 .
  • the chisels 13 attached to the outer part 25 also rotate.
  • the end face carries, for example, 8 and a total of 36 chisels are distributed around the circumference.
  • the outer part 25 is pushed onto the fixed inner part 18 until its collar 26, which is seated at the end, comes into contact with a grinding seal 27 fastened to the fastening plate 15 .
  • the outer part 25 is thus rotatably arranged around the inner part 18 .
  • the axis of rotation CC (arrow IV in FIG. 2) of the drum 9 is thus in alignment with the drive shaft 20 of the drive 21.
  • the axes of rotation CC of both drums 9 are thus arranged parallel to one another at a distance from one another, so that there is sufficient space in the housing 10 about the central axis DD to accommodate a hydraulic pivoting device 28 .
  • This consists of a hydraulic rotary feedthrough, which protrudes through an opening 29 in the housing cover 17 into the truss housing 11 .
  • the housing 10 is rotatably supported on the annular part 30 of the cross member 11 by an axial and radial bearing 31 .
  • the hydraulic pivoting device 28 is connected to a hydraulic system 32 (FIG. 5) which also supplies the drives 22 .
  • This hydraulic system 32 includes the drives 21 , the swivel device 28, the oil motor 34, flow control 33, check valves, reversing valves and the corresponding hydraulic lines 35. As shown in Fig. 5, the two drives 21 are connected in parallel. This circuit ensures that the full pressure difference of the excavator 1 is applied to the drive 21 and half of the oil volume flow is available to each drive. The operating point of each drive is set by a 2-way flow regulator 33, which keeps the oil volume flow to each of the drives constant. Check valves and pressure relief valves, not shown, are also necessary. This ensures that the speeds of both drives are the same regardless of the moment.
  • the excavator 1 described above is moved to the processing zone 5 in such a way that the vehicle stands laterally to the processing zone 5.
  • the drums 9 arranged in the milling head 8 with their milling cutters 13 are fed via the telescopic arm 4 to the surface of the processing zone 5 until the counter-rotating bits 13 come into engagement with the ground.
  • the chisels are arranged on the outer part 25 of the first drum 9 on a helix line EE (see FIGS. 6 and 7) which is oriented in the opposite direction to the helix line FF of the second drum 9 .
  • the chisels 13 are distributed on the coils in such a way that the chisels 13 do not come into engagement at the same time and the lateral offset of the tooth engagement is also significantly reduced. This arrangement ensures that force compensation is achieved which prevents the telescopic arm from rocking.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Crushing And Grinding (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (23)

  1. Procédé pour le déblaiement et/ou l'enlèvement par creusement de couches ou de zones de sous-sols, par exemple le fraisage de surfaces et de contours pour le retraitement profilé de rigoles, coquilles, poches, convertisseurs et réservoirs collecteurs de scories, pour le nettoyage de fours électriques et pour l'élimination de déchets contaminés et de couches chargées pour l'assainissement d'amiante, dans lequel une tête de fraisage commandée par un moteur hydraulique, équipée de burins à fraiser, est mise en prise avec la zone à enlever du sous-sol, la tête de fraisage étant maintenue en position de fraisage par un bras télescopique d'un véhicule à chariot supérieur et déplacée en direction d'enlèvement, et dans lequel sont utilisés au moins deux tambours (9), mais toujours pairs, parallèles à l'axe, tournant en sens inverse, commandés directement par chaque fois une commande hydraulique à petite vitesse (21), les burins à fraiser tournant en entraínement (13) étant mis en prise sur une ligne hélicoïdale (E-E ; F-F) successivement et avec déport latéral minime, et dans lequel, simultanément au mouvement rotatif en sens inverse des tambours individuels (9), un mouvement rotatif de même sens commandé est communiqué aux deux tambours autour d'un axe commun (D-D) parallèle aux axes des tambours individuels.
  2. Procédé suivant la revendication 1, caractérisé en ce que, supplémentairement au mouvement d'avance du tambour (9), un balancement nutatoire de la tête de fraisage (8) et/ou un mouvement rotatif du bras télescopique autour de son axe longitudinal (B-B) et/ou la sortie et la rentrée du bras télescopique et/ou la levée et la descente du bras télescopique sur le chariot supérieur et/ou le pivotement du chariot supérieur et/ou le déplacement du véhicule.
  3. Procédé suivant la revendication 1, caractérisé en ce que le mouvement rotatif commandé est un mouvement à gauche ou à droite.
  4. Procédé suivant les revendications 1 à 3, caractérisé en ce que les tambours (9) tournent à la même vitesse autour de leurs axes rotatifs (C-C).
  5. Procédé suivant les revendications 1 à 3, caractérisé en ce que les tambours (9) tournent à des vitesses inégales autour de leurs axes rotatifs (C-C).
  6. Procédé suivant les revendications 1 à 5, caractérisé en ce que la vitesse des tambours (9) est réglée par la variation du flux volumique de l'huile du système hydraulique (32).
  7. Procédé suivant la revendication 1, caractérisé en ce que les commandes (21) sont mis en parallèle hydrauliquement.
  8. Procédé suivant la revendication 1, caractérisé en ce que les commandes (21) sont mis en série hydrauliquement.
  9. Installation pour le déblaiement et/ou l'enlèvement par le creusement de couches ou de zones de sous-sols, par exemple le fraisage de surfaces et de contours pour le retraitement profilé de rigoles, coquilles, poches, convertisseurs et réservoirs collecteurs de scories, pour le nettoyage de fours électriques et pour l'élimination de déchets contaminés et de couches chargées pour l'assainissement d'amiante, au moyen d'un véhicule déplaçable le long du sous-sol à traiter, par exemple un excavateur, présentant un chariot supérieur orientable, sur lequel est articulé un bras télescopique pivotant et tournant, l'extrémité duquel est munie d'une prise pour une tête de fraisage commandée par un moteur hydraulique et portant plusieurs burins à fraiser, où cette tête de fraisage (8) présente au moins deux tambours (9), mais toujours pairs, dont les axes rotatifs (C-C) sont disposés parallèlement les unes par rapport aux autres et côte à côte, et desquels chaque tambour (9) est muni de plusieurs burins (13) disposés du côté frontal et au pourtour sur une ligne hélicoïdale (E-E ; F-F), les hélices ayant une allure mutuellement en sens inverse autour du tambour et les burins étant disposés mutuellement à distribution sur les lignes hélicoïdales de manière à ce qu'il n'y ait pas de composantes de forces axiales, et où une commande hydraulique séparée (21) est attribuée à chaque tambour (9), dont l'arbre d'entraínement (20) est aligné sur l'axe rotatif respectif du tambour, faisant saillie vers l'intérieur, appuyé de manière tournante par des paliers (23 ; 24) sur une pièce intérieure tubulaire et non rotative (18) du tambour et solidaire du côté d'entraínement d'une pièce extérieure (25) portant les burins, disposée à l'extérieur de manière d'une douille, tournante autour de la pièce intérieure (18), les commandes étant enfermées par un boítier commun (10) présentant une plaque de fixation (15) dans lequel est disposé sur un axe médian (D-D), parallèlement aux axes rotatifs (C-C) des tambours (9), un dispositif pivotant hydraulique (28) pour la rotation des deux tambours autour de l'axe médian sur un carter de traverse stationnaire (11), le dispositif pivotant (28) étant disposé de manière faisant saillie dans le carter de traverse stationnaire (11) et prenant appui sur une pièce annulaire (30) du carter de traverse par un palier radial et axial (31) et qu'il est prévu pour les commandes (21) et le dispositif pivotant (28) un système hydraulique commun (32) comprenant un moteur à huile (34), des régulateurs de volume (33), des soupapes de non-retour et des conduites hydrauliques (35).
  10. Installation suivant la revendication 9, caractérisée en ce que la partie intérieure (18) du tambour et la plaque de fixation (15) sont conçues en une seule pièce
  11. Installation suivant la revendication 9, caractérisée en ce que la partie extérieure (25) du tambour (9) présente un collet (26) étanchéifié au moyen d'un joint (27) par rapport à la plaque de fixation (15) de manière glissante.
  12. Installation suivant la revendication 9, caractérisée en ce que les commandes (21) sont fixées comme unité en rack sur la plaque de fixation (15).
  13. Installation suivant la revendication 9, caractérisée en ce que la commande hydraulique (21) est un moteur à couple élevé à petite vitesse, de préférence un moteur en rack du type à piston radial.
  14. Installation suivant les revendications 9 et 13, caractérisée en ce que le diamètre (D) de l'arbre de commande (20) augmente en gradins vers le bout d'arbre pour les couples élevés.
  15. Installation suivant les revendications 9 à 14, caractérisée en ce qu'il est prévu comme coussinet un palier fixe (23) disposé à proximité de la commande et un palier libre (24) disposé à proximité du bout d'arbre.
  16. Installation suivant la revendication 9, caractérisée en ce que le dispositif pivotant (28) se compose d'un passage tournant et d'un vireur hydrauliques.
  17. Installation suivant la revendication 9, caractérisée en ce que la partie extérieure (25) du tambour (9) est conçue de manière à pouvoir être retirée de la partie intérieure (18).
  18. Installation suivant les revendications 9 et 17, caractérisée en ce que les parties extérieures (25) des tambours (9) présentent de préférence une forme sphéroïdale ou convexe.
  19. Installation suivant l'une ou plusieurs des revendications précédentes 9 à 18, caractérisée en ce que les burins à fraiser (13) sont disposés de manière échangeable dans des raccordements (14) sur le pourtour et du côté frontal de la partie extérieure (25).
  20. Installation suivant les revendications 9 et 19, caractérisée en ce que les burins à fraiser (13) sont des burins à queue cylindrique.
  21. Installation suivant la revendication 9, caractérisée en ce qu'un dispositif d'aspiration est disposé sur le tambour (9) à proximité des burins à fraiser (13).
  22. Installation suivant la revendication 9, caractérisée en ce que les tambours (9), le boítier (10) et le carter de traverse (11) sont blindés de manière étanche aux liquides.
  23. Installation suivant les revendications 9 à 22, caractérisée en ce qu'un appareil photographique immergé est attribué aux tambours (9).
EP98936107A 1998-06-02 1998-06-02 Procede et dispositif pour enlever et/ou oter en les brisant des couches ou des zones situees dans des substrats Expired - Lifetime EP0996845B1 (fr)

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PCT/DE1998/001546 WO1999063291A1 (fr) 1998-06-02 1998-06-02 Procede et dispositif pour enlever et/ou oter en les brisant des couches ou des zones situees dans des substrats

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EP0996845A1 EP0996845A1 (fr) 2000-05-03
EP0996845B1 true EP0996845B1 (fr) 2002-03-27

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EP (1) EP0996845B1 (fr)
AT (1) ATE215212T1 (fr)
AU (1) AU8530098A (fr)
DE (1) DE59803534D1 (fr)
WO (1) WO1999063291A1 (fr)

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EP1362954A1 (fr) * 2001-10-26 2003-11-19 Fredy Stury AG Tête de fraisage pour un engin de chantier
DE102005002516A1 (de) * 2005-01-19 2006-07-27 Penox Gmbh Vorrichtung zum Entfernen fester Schmelzrückstände aus einem Schmelzofen sowie Anlage zur Metalloxidherstellung mit einer derartigen Vorrichtung
DE102016115194A1 (de) 2016-08-16 2018-02-22 Thyssenkrupp Ag Ausbruchvorrichtung

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Publication number Priority date Publication date Assignee Title
FR2395387A1 (fr) * 1977-06-20 1979-01-19 Roche Andre Appareil de forage des sols
DE3136236A1 (de) * 1981-05-02 1982-11-25 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zum ausbruch von hochofenrinnen u.dgl.
EP0080802A1 (fr) * 1981-10-14 1983-06-08 James Christopher Wallace Machine pour fraiser une tranchée dans un rocher
DE3225015C1 (de) * 1982-07-03 1983-11-17 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Vorrichtung zum Reinigen von feuerfest ausgekleideten Förderrinnen für schmelzflüssige Metalle und Schlacken mittels rotierender Ketten
FR2556993B1 (fr) * 1983-12-22 1986-09-19 Somafer Sa Outil pour le nettoyage des rigoles de coulee
DE3445492C2 (de) * 1984-02-25 1986-10-02 Turmag Turbo-Maschinen-AG Nüsse & Gräfer, 4322 Sprockhövel Bohrköpfe zum Bohren im Gestein
AUPN183295A0 (en) * 1995-03-20 1995-04-13 Gearhart United Pty Ltd Bi-directional roller reamer

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EP0996845A1 (fr) 2000-05-03
DE59803534D1 (de) 2002-05-02
ATE215212T1 (de) 2002-04-15
WO1999063291A1 (fr) 1999-12-09
AU8530098A (en) 1999-12-20

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