EP0318701B1 - Verfahren und Vorrichtung zur Wiederherstellung der Zustellung von metallurgischen Pfannen - Google Patents

Verfahren und Vorrichtung zur Wiederherstellung der Zustellung von metallurgischen Pfannen Download PDF

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Publication number
EP0318701B1
EP0318701B1 EP88117959A EP88117959A EP0318701B1 EP 0318701 B1 EP0318701 B1 EP 0318701B1 EP 88117959 A EP88117959 A EP 88117959A EP 88117959 A EP88117959 A EP 88117959A EP 0318701 B1 EP0318701 B1 EP 0318701B1
Authority
EP
European Patent Office
Prior art keywords
arm
carrier
lining
ladle
tool
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
EP88117959A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0318701A2 (de
EP0318701A3 (en
Inventor
Wilhelm Dr. Eitel
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.)
Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
Original Assignee
Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
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 Intocast GmbH Feuerfestprodukte und Giesshilfsmittel filed Critical Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
Priority to AT88117959T priority Critical patent/ATE74035T1/de
Publication of EP0318701A2 publication Critical patent/EP0318701A2/de
Publication of EP0318701A3 publication Critical patent/EP0318701A3/de
Application granted granted Critical
Publication of EP0318701B1 publication Critical patent/EP0318701B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B22D41/023—Apparatus used for making or repairing linings

Definitions

  • the invention relates to a device of the type corresponding to the preamble of claim 1.
  • a method in which, after removal of unusable surface parts of the old delivery, a shape determining the pan cavity is introduced into the pan and the space between the shape and the worn surface of the delivery is filled with a pourable refractory mass which is compacted by vibration and combines with the rest of the old delivery, which remains in the pan, to form a monolithic lining, is known from a lecture given by T. Mafune and M. Chastant during the J publiclys d'Information Techniques de Mise en Oeminister des Produits & Matériaux Réfractaires on October 29 and 30, 1985 was held in Nancy.
  • the need to remove the outer skin of the infeed after a series of melts, which is exposed to the melt, also called “skull”, is only addressed there without giving details of the practical implementation.
  • the "skull” consists of the adhering layer of slag and the top layer of the old delivery, into which slag and melt are penetrated on the surface. The removal is necessary in order to ensure a perfect bond between the newly introduced refractory mass and the remaining ones Secure parts of the old delivery and come back to a compact, coherent, robust, monolithic delivery of the pan.
  • a device for removing surface parts of the delivery of a pan according to the preamble of claim 1 emerges from DE-A-27 23 547.
  • the slag deposits or infiltrated edge layers are removed by means of these, using tangential angular momentum, as well as striking tools and tools that work on shavings.
  • the block-like removal tools are attached to chains at the free ends of arms and, when the arm arrangement is rotated, come under attack under the action of centrifugal force on the infeed which is removed to a certain radius about the axis of rotation.
  • the invention has for its object to provide a device by means of which the removal of the top layers of the refractory lining can be carried out quickly and economically before the introduction of the new refractory mass.
  • the result of the invention is that the machining does not follow a specific radius, but follows the irregularities of the surface true to the contour, i.e. only a layer is processed from the surface, which is penetrated with slag or melt, without a cylindrical inner circumferential surface necessarily being produced. Only the unusable portion is removed, but still usable portions lying at a certain depth remain regardless of the interior circumference of the cleaned delivery.
  • the true-to-contour removal is ensured by the resilient relocability of the arm, as a result of which the tool can follow the surface shape of the infeed and can exert its attack in layers even on a wavy wall surface. Since only limited quantities of the delivery material have to be removed, the surface of the old delivery is processed relatively quickly.
  • the arms are arranged according to claim 2.
  • the tool can also machine the bottom of the pan.
  • a controllably resilient contact of the tool on the surface of the infeed and at the same time the movement of the arm can be brought about by force members actuated by a fluid pressure medium, which can be designed as pneumatic or hydraulic piston / cylinder units.
  • the tool is designed as a rotatably mounted disc arrangement which carries chisel-like shattering elements on the circumference.
  • the disk arrangement can comprise a plurality of disks arranged coaxially next to one another (claim 9), which carry circumferentially shaped shattering elements designed as flat, chisel-like pins (claim 10).
  • the vibrating forces preferably act on the shattering elements of this pane, but this prevents an in-depth penetration is that the disk arrangement comes into contact with the shattering elements of the other disk on the surface of the infeed after a penetration path corresponding to the radius difference and further penetration is slowed down by the distribution of the vibrational forces over a plurality of shattering elements.
  • the vibrator is appropriately arranged according to claim 12, whereby it can act directly on the tool, but is not in the way.
  • the vertical guide can in turn be supported in the manner reproduced in claim 17, which gains a special sense in the system according to claim 18, the most important feature of which is the interchangeability of the device against the shape required for the introduction of the refractory mass on the same around the footprint of the Pan is arranged around the stand.
  • the device designated as a whole in FIG. 1oo serves as an auxiliary tool for restoring the metallurgical ladle 1, which in the exemplary embodiment is a large ladle for use in steel production.
  • the pan 1 comprises a container 2 made of thick sheet steel, which has a refractory lining 3 on the inside, the inner surface 4 of which shows signs of wear after a certain number of steel melts and must be restored. This is done by lowering a mold corresponding to the desired pan cavity into the pan and filling the space between the mold and the worn surface 4 with a pourable refractory mass which can be fluidized and compacted by vibrations.
  • refractory masses with thixotropic properties are used because only moisture contents of 4% to 5% are necessary, which of course accelerates the drying of the compacted mass before the pan is used again.
  • the goal in processing the infeed 3 is to preserve as much of the still usable lower areas of the infeed as possible and really only to remove the unusable surface portions.
  • the problem is, however, that experience has shown that the inner surface 4 does not wear evenly, but becomes wavy after a series of steel melts, particularly due to the different erosion effects of the steel jet when the steel is poured in and generally due to local turbulence in the bath. If the processing would then take place in such a way that a uniform shape of the inner surface 4 would be produced, the infeed 3 would have to be removed everywhere to a depth which corresponds to the most worn point. It would also take away a lot of fireproof material from the less worn areas, which is still useful in itself.
  • the processing should therefore be carried out in such a way that only a substantially uniform layer is removed, the surface relief being essentially retained. Such processing of the surface layers that have become unusable is achieved with the device 100.
  • the pan 1 is placed with a crane on a stand area indicated at 5 on the hall floor 6.
  • a stand designated as a whole by 7, which in the exemplary embodiment comprises 3 upright columns 8 which are connected to one another in the upper region by cross bars 9.
  • the columns 8 have support surfaces 11 on the upper end, onto which a guide frame, designated as a whole with 10, with corresponding support surfaces, can be placed and locked with the aid of clamping devices 12.
  • the carrier 2o Provided on the guide frame 1o is a vertical guide 13 with pairs of rollers 14 arranged one above the other distributed over the circumference, on which a support designated as a whole with 2o can be raised and lowered by a device which is not shown.
  • the carrier 2o the length of which is determined by the maximum depth of the pans 1, consists of two U-profiles 19 facing one another with the open sides, on the back of which longitudinally extending rectangular profiles 19 'are screwed or welded to one another on their outer sides form parallel, in the longitudinal direction of the carrier 2o extending guide surfaces 19 ⁇ for the attack of the rollers 14.
  • a support tube 15 is mounted rotatably about an axis A at bearings 21, 22 provided at its ends, which extends over the entire length of the support 2o and projects from the bottom thereof.
  • a hydraulic motor 16 is provided, which can rotate the carrier tube 15 via a gearwheel operation 17, 18.
  • holding arms 23 protruding crosswise are provided just below the lower end of the support 2o, from the outer ends of which hydraulic piston / cylinder units 24 run downward, which engage on holding pieces 25 which in the lower region of the downwardly projecting end of the support tube 15 about axes 26 extending in a radial plane from the horizontal position shown in solid lines in Fig. 1 in a downward direction, in Fig. 1 at 25 'indicated position are pivotable.
  • the holding pieces 25 extend in the horizontal position substantially radially to the support tube 15 and carry at their ends the arms 27, the axes 28 perpendicular to the axes 26, in the position of the holding pieces 25 shown in FIG. 1, thus in a horizontal plane are pivotable.
  • the arms 27 do not run radially, but with the longitudinal extent indicated by the dash-dotted line 49 in FIG. 2 tangential to an imaginary horizontal circle 51 around the axis A, which in the exemplary embodiment has approximately half the diameter of the pan 1.
  • the arms 27 carry tools 30 which can be rotated about axes 29 parallel to the axes 28 and which will be described in more detail below.
  • vibrators 32 are provided on the side facing away from the infeed 3, which bring the tools 3o to a hammering attack on the inner circumferential surface 4 of the infeed.
  • FIGS. 3 and 4 The tools 3o are shown in FIGS. 3 and 4.
  • a disk arrangement 5o comprising three disks 36, 37, 38 is arranged on a transverse pin 4o forming the axis 29, each of which has twelve radially arranged shattering elements 39 in the shape of its circumference Wear a chisel-like flat point 39 which protrudes with the tip over the circumference of the disks 36, 37, 38.
  • the disks 36,37,38 are freely rotatable on the pin 4o.
  • the diameter of the middle disk 37 is a few millimeters larger than that of the two adjacent disks 36, 38 of the same size.
  • the tool 3o does not have to be constructed from individual disks.
  • a single disc can also be used, which is provided on its circumference with several rows of shattering elements 39, as is indicated for the tool 30 in FIG. 1.
  • FIG. 5 shows a damping element 41, the attachment point of which is indicated on the left-most arm 27 according to FIG. 2 by the corresponding reference number.
  • the piston / cylinder unit 34 which presses the arm 27 against the inner circumference 4 of the infeed, exerts its force via the damping member 41, which comprises an essentially cylindrical housing 42 into which the piston rod 35 slidably engages.
  • the piston rod 35 In the interior of the housing 42, the piston rod 35 has a type of pressure plate 43 which acts against a helical compression spring 44 which is supported on the bottom of the housing 42.
  • the housing 42 is mounted on a bearing eye 45 on the arm 27. When the piston rod 35 is pressed, this force is transmitted while compressing the spring 44.
  • FIG. 6 shows a further developed embodiment in which the disk arrangement 50 forming the tool 3o around the pin 4o in a bearing block 46 is rotatable, which in turn can be pivoted relative to the end of the arm 27 about a pin 52.
  • the pivoting takes place in a plane 53 which is perpendicular to the pivoting plane of the arm 27 and also essentially perpendicular to the longitudinal extension of the arm 27.
  • the axis 47 of the pivoting of the bearing block 46 leaves a transverse distance 48 from the axis of rotation 29 of the disc arrangement 5o, so that the bearing block 46 with the disc arrangement 5o acts like a steering roller and can adjust itself automatically to the unevenness of the peripheral surface 4 of the infeed 3. This is to prevent the tool 3o from sticking to unfavorably shaped locations on the peripheral surface 4 and tearing pieces that are too large out of the peripheral surface 4.
  • the holding pieces 25 and the arms 27 are located in a horizontal plane above the upper edge of the pan 1.
  • the arms 27 are then pivoted in by appropriate actuation of the piston / cylinder units 34, as is the case is indicated at 27 'in Fig. 2, so that the tools 3o lie entirely within the inner surface 4.
  • the carrier 2o is lowered and the holding pieces 25 are pivoted into the downward-facing position 25 '.
  • the lowering takes place until the tools 3o touch the bottom of the infeed 3.
  • the vibrators have been switched on, the tools 3o are pressed against the floor by the piston / cylinder units 34 and the carrier 2o is slowly rotated by the hydraulic motor 16.
  • the holding pieces 25 are then slowly pivoted outwards, as a result of which areas of the base located radially further out are processed.
  • the holding pieces 25 are brought into the horizontal position, as is indicated by dash-dotted lines in the interior of the pan 1.
  • the carrier 2o rotates slowly about the axis A, the arms 27 being resiliently pressed against the inner surface 4 via the damping members 41 and the tools 3o removing the surface true to the contour to a substantially constant depth.
  • the work is advantageously carried out from the bottom up so that the tools 3o do not have to work in large quantities on the bottom of the pan 1 towards the end of the work step.
  • the pan 1 is emptied and placed on the base 5 again.
  • the guide frame 10 is set down with the aid of a crane and instead a corresponding guide frame (not shown) with the shape thereon for the cavity of the pan 1 is placed on it.
  • the space between the shape and the newly created surface of the refractory lining 3 is filled with pourable refractory material and this is compacted by vibration.
  • the new material combines with the cleaned surface of the refractory delivery to form a new monolithically connected delivery.
  • the deeper areas of the infeed 3 adjacent to the container 2 can remain in the pan 1 for a very long time. In this respect, it is spoken of a so-called "eternal" delivery.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP88117959A 1987-12-04 1988-10-28 Verfahren und Vorrichtung zur Wiederherstellung der Zustellung von metallurgischen Pfannen Expired - Lifetime EP0318701B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88117959T ATE74035T1 (de) 1987-12-04 1988-10-28 Verfahren und vorrichtung zur wiederherstellung der zustellung von metallurgischen pfannen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873741073 DE3741073A1 (de) 1987-12-04 1987-12-04 Verfahren und vorrichtung zur wiederherstellung der zustellung von metallurgischen pfannen
DE3741073 1987-12-04

Publications (3)

Publication Number Publication Date
EP0318701A2 EP0318701A2 (de) 1989-06-07
EP0318701A3 EP0318701A3 (en) 1990-03-21
EP0318701B1 true EP0318701B1 (de) 1992-03-25

Family

ID=6341852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117959A Expired - Lifetime EP0318701B1 (de) 1987-12-04 1988-10-28 Verfahren und Vorrichtung zur Wiederherstellung der Zustellung von metallurgischen Pfannen

Country Status (4)

Country Link
US (1) US4923180A (enrdf_load_stackoverflow)
EP (1) EP0318701B1 (enrdf_load_stackoverflow)
AT (1) ATE74035T1 (enrdf_load_stackoverflow)
DE (1) DE3741073A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394682A (zh) * 2013-07-31 2013-11-20 秦皇岛首秦金属材料有限公司 一种钢包周转方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827400A1 (de) * 1988-08-12 1990-02-15 Salzgitter Peine Stahlwerke Verfahren und vorrichtung zum reinigen einer foerderrinne
DE4003646C1 (enrdf_load_stackoverflow) * 1990-02-07 1990-12-13 Intocast Gmbh Feuerfestprodukte Und Giesshilfsmittel, 4030 Ratingen, De
AT394054B (de) * 1990-04-12 1992-01-27 Veitscher Magnesitwerke Ag Metallurgisches gefaess, sowie verfahren und vorrichtung zur herstellung der auskleidung desselben
AT394055B (de) * 1990-04-12 1992-01-27 Veitscher Magnesitwerke Ag Metallurgisches gefaess und verfahren zur herstellung der feuerfesten auskleidung solcher gefaesse
US5340088A (en) * 1990-04-12 1994-08-23 Veitscher Magnesitwerke-Actien-Gesellschaft Metallurgical vessel and method of making the refractory lining of such vessels
DE4201748C2 (de) * 1992-01-23 1994-01-05 Intocast Gmbh Verfahren zur Herstellung der feuerfesten Zustellung einer Gießpfanne
DE9303522U1 (de) * 1993-03-11 1994-07-07 Intocast GmbH Feuerfestprodukte und Gießhilfsmittel, 4030 Ratingen Vorrichtung zur Verwendung bei einem Verfahren zur Wiederherstellung der feuerfesten Zustellung von metallurgischen Pfannen, insbesondere für die Stahlherstellung
DE19802207C2 (de) * 1998-01-22 2002-12-19 Intocast Ag Feuerfest Produkte Schablone zur Auskleidung von Gießpfannen
BR102019024046A2 (pt) 2019-11-14 2021-05-25 Saint-Gobain do Brasil Produtos Industriais e para Construção Ltda. método para revestir fundo de panela de aço
CN116372150B (zh) * 2023-05-31 2023-09-08 亿川科技(成都)有限责任公司 一种用于钢包维修的自动化筑打系统及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931060A (en) * 1957-01-30 1960-04-05 Salvatore Compagnone Ladle sculling machine
DE2212153A1 (de) * 1972-03-14 1973-09-27 Plibrico Co Gmbh Abkratz- und aufrauhvorrichtung
US3944193A (en) * 1972-08-26 1976-03-16 Nippon Steel Corporation Method and apparatus for forming by vibration a refractory lining of a container for a molten metal
JPS5148728A (en) * 1974-10-07 1976-04-27 Nippon Steel Corp Yokino taikaraininguseikeisochi
NL175268C (nl) * 1975-04-22 1984-10-16 Zeevenhooven Bv Inrichting voor het verwijderen van aan de vuurvaste binnenbekleding van een metaalgietpan of houder aangebrachte afzettingen.
GB1488843A (en) * 1975-10-24 1977-10-12 Dosco Overseas Eng Ltd Cutting machine for removing furnace refractory linings
FR2371261A1 (fr) * 1976-11-19 1978-06-16 Bozel Electrometallurgie Installation de decrassage de poches de coulee
DE2723547C2 (de) * 1977-05-25 1983-10-20 Otto Junker Gmbh, 5107 Simmerath Vorrichtung zum Entfernen der Schlackenansätze sowie infiltrierten inneren Randschichten an Schmelz- oder Gießgefäßen
SU975201A1 (ru) * 1980-05-16 1982-11-23 За витель Н.И. Терехов Способ футеровки металлургических емкостей и устройство дл его осуществлени
US4328959A (en) * 1980-11-14 1982-05-11 Gerwin Holtmann Method and device for removing used refractory lining and/or slag deposits from elongated vessels
SU992121A1 (ru) * 1981-05-04 1983-01-30 Магнитогорский Дважды Ордена Ленина И Ордена Трудового Красного Знамени Металлургический Комбинат Им.В.И.Ленина Шаблон дл изготовлени футеровки металлургических емкостей
JPS5940182A (ja) * 1982-08-31 1984-03-05 Matsushita Electric Works Ltd 自動車後方監視装置
JPS624808A (ja) * 1985-06-28 1987-01-10 Nippon Kokan Kk <Nkk> 高温溶体用樋の補修方法及び装置
GB8615431D0 (en) * 1986-06-24 1986-07-30 Somafer Sa Treatment of refractory lined transfer channels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394682A (zh) * 2013-07-31 2013-11-20 秦皇岛首秦金属材料有限公司 一种钢包周转方法

Also Published As

Publication number Publication date
US4923180A (en) 1990-05-08
EP0318701A2 (de) 1989-06-07
DE3741073C2 (enrdf_load_stackoverflow) 1990-07-12
DE3741073A1 (de) 1989-06-15
EP0318701A3 (en) 1990-03-21
ATE74035T1 (de) 1992-04-15

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