EP0930476B1 - Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method - Google Patents

Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method Download PDF

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Publication number
EP0930476B1
EP0930476B1 EP19990890007 EP99890007A EP0930476B1 EP 0930476 B1 EP0930476 B1 EP 0930476B1 EP 19990890007 EP19990890007 EP 19990890007 EP 99890007 A EP99890007 A EP 99890007A EP 0930476 B1 EP0930476 B1 EP 0930476B1
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EP
European Patent Office
Prior art keywords
closing
transmission part
hammer
opening
inner shaft
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
EP19990890007
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German (de)
French (fr)
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EP0930476A1 (en
Inventor
Karl Ing. Meisenbichler
Werner Ing. Schantl
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.)
Boehler Pneumatik International GmbH
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BBG Baugeraete GmbH
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Publication of EP0930476A1 publication Critical patent/EP0930476A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D9/00Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06Means for driving the impulse member
    • B25D9/12Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/12Opening or sealing the tap holes
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/44Refractory linings
    • C21C5/445Lining or repairing the taphole
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B6/00Drives for drilling with combined rotary and percussive action
    • E21B6/02Drives for drilling with combined rotary and percussive action the rotation being continuous
    • E21B6/04Separate drives for percussion and rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/15Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509Tapping equipment
    • F27D3/1527Taphole forming equipment, e.g. boring machines, piercing tools

Definitions

  • the invention relates to a method for disclosing or Closing a tap hole in a refractory delivery Wall of a metallurgical vessel, for example a copper-smelting furnace, a blast furnace and the like, preferably by means of one metallic closure part.
  • a pneumatic or hydraulic operable hammer in particular hammer drill. consisting essentially of a striking mechanism with a tool-related one Transmission part, which is adjustable on a percussion piston, as well optionally with a rotary motor operatively connected to the transmission part Gear and the use of the hammer for an opening and / or Closing the tap opening in a metallurgical vessel.
  • melts for the production and / or processing of Certain melts can advantageously be provided in one-piece closure parts be, by means of which an open position and a closing of the The vessel according to the procedure.
  • This if necessary preferably metallic closure parts are in the tap hole of the Melt vessel introduced and must be for a required period of time complete completion or inclusion of the batch or the liquid melt to ensure.
  • an open with is possible secured or desired cross-sectional shape of the rack required to to achieve a largely cylindrical, non-shattering melt stream.
  • Another form, often used only as a highly effective emergency measure opening a tap of metallurgical vessels is an opening or closing Burn out a tapping channel with oxygen.
  • Oxygen by means of a metal tube, in particular steel tube, which on Outlet end above the reaction temperature of the metal or steel with oxygen is heated, when the same is placed on the refractory sealing compound Tapping opening introduced by local liquefaction of the mass.
  • a Deflection of the focal beam can easily become one for one Lead unwanted and unfavorable channel shape, which in the Consequence also causes sealing problems and / or expensive repairs.
  • a Closing and opening the tap hole of a metallurgical Vessel using a predominantly cylindrical or slightly tapered Closure part, which is effective in the tap opening is provided.
  • This Closure system or this device advantageously provided one each Extensive open position of the rack and the refractory material gentle closing of the same, but caused in the operative and dangers and problems in the area of plant technology.
  • the invention is concerned with a state the technology-enhancing, sequential discharge technology of Batches or melts from metallurgical vessels. It is a goal, one Specify the method by means of which a melt is tapped and Closing the tapping channel consequently increases safety, better Workflow and increased economy can be achieved.
  • Another The object of the invention is a hammer with a striking mechanism, in particular for Open and to create a tap hole with which Machining in both directions of the axis of the tool, preferably one Movement of a closure part in a refractory delivery, simple, short-term and, if necessary, shape-preserving for opening a brick lining metallurgical vessel is made effective and safe.
  • This goal is achieved in a method of the type mentioned at the outset by that the closure part in the region of the tapping into the intended or desired direction acting on or restoring force, if necessary at simultaneous exertion of a torque and consequently the force and / or a striking rectified component is superimposed on the moment and the closure part is moved.
  • the advantages achieved with the invention are in particular due to the fact that a trigger or insertion force on the closure part blows and if necessary, a torque can be superimposed, whereby on the one hand by Creation of sliding friction reducing the forces on the lining of the Tapping area and thus largely preserving the shape of the melt channel is given, on the other hand, a quick and easy opening and Closing the tap opening is made possible, so that an inexpensive, exact batch sequence with high operational reliability can be achieved.
  • the striking component (s) pass through the axial force applied to the closure part is or are triggered because so that the connecting elements to the tool are particularly protected or have a particularly long service life.
  • the further object of the invention is in a hammer of the aforementioned type solved in that the axially displaceable in the striking mechanism, at least on the one hand with a tool or similar means connectable transmission part an inner shaft and two opposite this in the axial direction, in Diameter enlarged anvil parts is formed and in the striking mechanism piston which can be moved back and forth by means of the pressure medium has a tubular shape and the inner shaft of the transmission part is axially displaceable coaxially encloses, each by an axial displacement of the transmission part one of the anvil parts to the opposite end face in the area of a End position of the cattail is adjustable and impact energy can be applied.
  • the advance or retraction of the tool can be particularly favorable on the Properties of the material to be processed and on the Tool cutting range can be matched when the cattail through a Reversing device can alternatively be acted upon with pressure medium, one Regulation of the impact energy of the cattail by the amount per unit of time and / or the pressure can be generated as the supplied medium.
  • Tool 3 is now switched on to an object to be processed, possibly a stopper in a tap opening or the like, the transmission part 2, the has an anvil part 22 and 23 on both sides, axially in the striking mechanism 1 moved until, as is shown schematically, the anvil part 23 with a Contact surface 231 on a support surface 12 in the striking mechanism 1 in the axial direction of the Tool 3 is present.
  • the contact force of tool 3 caused a counterforce, which on the contact surface 231 of the anvil part 23 by means of Support surface 12 is introduced into the striking mechanism 1.
  • the transmission part 2 can also optionally Activation of a transmission 5 by a rotary motor 6 with a torque be charged.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Offenstellen oder zum Verschließen einer Abstichöffnung in einer mit feuerfester Zustellung versehenen Wand eines metallurgischen Gefäßes, zum Beispiel eines Kupferstein-Schmelzofens, eines Hochofens und dergleichen, mittels eines vorzugsweise metallischen Verschlußteiles. Weiters werden ein pneumatisch oder hydraulisch betreibbarer Hammer, insbesondere Bohrhammer. bestehend im wesentlichen aus einem Schlagwerk mit einem mit einem Werkzeug in Verbindung stehenden Übertragungsteil, welcher an einem Schlagkolben anstellbar ist, sowie gegebenenfalls einem mit dem Übertragungsteil wirkverbundenen Drehmotor mit Getriebe und die Verwendung des Hammers für ein Offenstellen und/oder Verschließen der Abstichöffnung in einem metallurgischen Gefäß umfaßt.The invention relates to a method for disclosing or Closing a tap hole in a refractory delivery Wall of a metallurgical vessel, for example a copper-smelting furnace, a blast furnace and the like, preferably by means of one metallic closure part. Furthermore, a pneumatic or hydraulic operable hammer, in particular hammer drill. consisting essentially of a striking mechanism with a tool-related one Transmission part, which is adjustable on a percussion piston, as well optionally with a rotary motor operatively connected to the transmission part Gear and the use of the hammer for an opening and / or Closing the tap opening in a metallurgical vessel.

Bei metallurgischen Gefäßen für eine Herstellung und/oder eine Verarbeitung von bestimmten Schmelzen können vorteilhaft einstückige Verschlußteile vorgesehen sein, mittels welcher sequentiell eine Offenstellung und ein Verschließen des Gefäßes dem Verfahren entsprechend vorzunehmen ist. Diese gegebenenfalls vorzugsweise metallischen Verschlußteile werden in die Abstichöffnung des Schmelzengefäßes eingebracht und müssen für eine erforderliche Zeitspanne einen vollkommenen Abschluß bzw. Einschluß der Charge bzw. der flüssigen Schmelze sicherstellen. Für einen Austrag der Charge ist ein Offenstellen mit möglichst gesicherter bzw. gewünschter Querschnittsform des Abstiches erforderlich, um einen weitgehend zylindrischen, nicht zerflatternden Schmelzenstrahl zu erwirken.In the case of metallurgical vessels for the production and / or processing of Certain melts can advantageously be provided in one-piece closure parts be, by means of which an open position and a closing of the The vessel according to the procedure. This if necessary preferably metallic closure parts are in the tap hole of the Melt vessel introduced and must be for a required period of time complete completion or inclusion of the batch or the liquid melt to ensure. For a discharge of the batch, an open with is possible secured or desired cross-sectional shape of the rack required to to achieve a largely cylindrical, non-shattering melt stream.

Es sind für die eingangs genannten metallurgischen Gefäße pneumatische Verschließverfahren bekannt, bei welchen plastifiziertes Feuerfestmaterial zur Beendigung des Chargenaustrages bzw. zur Abdichtung der Abstichöffnung in diese, zum Beispiel mittels eines Rohres oder Stopfens, eingebracht und erhärten gelassen wird, wobei gegebenenfalls zur Kompensation des statischen Druckes der Schmelze zumindest zeitweise Gegenhaltungseinrichtungen dienlich sein können. Ein Offenstellen des Abstiches erfordert sodann Bohrvorgänge im Feuerfestmaterial, welche einerseits nicht immer eine zylindrische Kanalform sicherstellen und andererseits die Form des Werkzeuges im Arbeitsbereich durch eine Einwirkung der unmittelbar nach Durchbruch durch die Zustellung austretenden, auf hoher Temperatur befindlichen Schmelze verändern.They are pneumatic for the metallurgical vessels mentioned at the beginning Closing method known in which plasticized refractory material for End of batch discharge or to seal the tap opening in these are introduced and hardened, for example by means of a pipe or plug is left, where appropriate to compensate for the static pressure of the Melting devices can be useful at least temporarily. An opening of the rack then requires drilling operations in the Refractory material, which on the one hand is not always a cylindrical channel shape ensure and on the other hand the shape of the tool in the work area an impact of delivery immediately after breakthrough Change emerging, high-temperature melt.

Eine weitere, oftmals nur als höchstwirksame Notmaßnahme verwendete Form eines Offenstellens eines Abstiches von metallurgischen Gefäßen ist ein Auf- oder Ausbrennen eines Abstichkanales mit Sauerstoff. Dabei wird durch Zufuhr von Sauerstoff mittels eines Metallrohres, insbesondere Stahlrohres, welches am Auslaßende Ober die Reaktionstemperatur des Metalles bzw. Stahles mit Sauerstoff erhitzt ist, bei Anstellung desselben an die Feuerfest-Dichtungsmasse eine Abstichöffnung durch örtliche Verflüssigung der Masse eingebracht. Eine Ablenkung des Brennstrahles kann dabei jedoch leicht zu einer für eine Schmelzenleitung ungewünschten und ungünstigen Kanalform führen, welche in der Folge auch Dichtungsprobleme und/oder aufwendige Reparaturen verursacht.Another form, often used only as a highly effective emergency measure opening a tap of metallurgical vessels is an opening or closing Burn out a tapping channel with oxygen. Thereby, by supplying Oxygen by means of a metal tube, in particular steel tube, which on Outlet end above the reaction temperature of the metal or steel with oxygen is heated, when the same is placed on the refractory sealing compound Tapping opening introduced by local liquefaction of the mass. A Deflection of the focal beam can easily become one for one Lead unwanted and unfavorable channel shape, which in the Consequence also causes sealing problems and / or expensive repairs.

Um die Nachteile der vorgenannten Verfahren zu vermeiden, wurde ein Verschließen und ein Offenstellen der Abstichöffnung eines metallurgischen Gefäßes mittels eines vorwiegend zylindrischen oder leicht kegeligen Verschlußteiles, welcher in der Abstichöffnung wirksam ist, vorgesehen. Dieses Verschlußsystem bzw. diese Vorrichtung erbrachte vorteilhaft eine jeweils weitgehende formgerechte Offenstellung des Abstiches und ein das FeuerfestMaterial schonendes Verschließen desselben, verursachte jedoch im operativen und im anlagentechnischen Bereich Gefahren und Probleme.In order to avoid the disadvantages of the aforementioned methods, a Closing and opening the tap hole of a metallurgical Vessel using a predominantly cylindrical or slightly tapered Closure part, which is effective in the tap opening, is provided. This Closure system or this device advantageously provided one each Extensive open position of the rack and the refractory material gentle closing of the same, but caused in the operative and dangers and problems in the area of plant technology.

In Weiterverfolgung der vorgenannten Entwicklungen bzw. der Vorschläge zur Lösung der anstehenden Problematik befaßt sich die Erfindung mit einer den Stand der Technik entscheidenden verbessernden, sequentiellen Austragstechnologie von Chargen bzw. Schmelzen aus metallurgischen Gefäßen. Dabei ist es ein Ziel , ein Verfahren anzugeben, mittels welchem bei einem Abstechen von Schmelzen und Verschließen des Abstichkanales in der Folge erhöhte Sicherheit, besserer Arbeitsablauf und gesteigerte Wirtschaftlichkeit erreicht werden kann. Eine weitere Aufgabe der Erfindung ist, einen Hammer mit einem Schlagwerk, insbesondere zum Offenstellen und zum Verschließen einer Abstichöffnung zu schaffen, mit welchem in beiden Richtungen der Axe des Werkzeuges Bearbeitungen, vorzugsweise eine Bewegung eines Verschlußteiles in einer Feuerfestzustellung, einfach, kurzzeitig sowie gegebenenfalls formerhaltend für eine Öffnung einer Ausmauerung eines metallurgischen Gefäßes wirksam und sicher ermöglicht wird.In pursuit of the aforementioned developments or the proposals for To solve the problem at hand, the invention is concerned with a state the technology-enhancing, sequential discharge technology of Batches or melts from metallurgical vessels. It is a goal, one Specify the method by means of which a melt is tapped and Closing the tapping channel consequently increases safety, better Workflow and increased economy can be achieved. Another The object of the invention is a hammer with a striking mechanism, in particular for Open and to create a tap hole with which Machining in both directions of the axis of the tool, preferably one Movement of a closure part in a refractory delivery, simple, short-term and, if necessary, shape-preserving for opening a brick lining metallurgical vessel is made effective and safe.

Dieses Ziel wird bei einem Verfahren der eingangs genannten Art dadurch erreicht, daß dem Verschlußteil im Bereich des Abstiches eine in die vorgesehene bzw. gewünschte Richtung wirkende An- oder Rückstellungskraft, gegebenenfalls bei gleichzeitigem Ausüben eines Drehmomentes vermittelt und in der Folge der Kraft und/oder dem Moment eine schlagende gleichgerichtete Komponente überlagert und der Verschlußteil bewegt wird.This goal is achieved in a method of the type mentioned at the outset by that the closure part in the region of the tapping into the intended or desired direction acting on or restoring force, if necessary at simultaneous exertion of a torque and consequently the force and / or a striking rectified component is superimposed on the moment and the closure part is moved.

Die mit der Erifndung erreichten Vorteile sind insbesondere darin begründet, daß einer Abzugs- oder Einführungskraft auf den Versclußteil Schläge und gegebenenfalls ein Drehmoment überlagert werden, wodurch einerseits durch Erstellung von Gleitreibung eine Verringerung der Kräfte auf die Ausmauerung des Abstichbereiches und somit ein weitgehender Erhalt der Form des Schmelzenkanals gegeben ist, andererseits ein rasches sowie einfaches Offenstellen und Verschließen der Abstichöffnung ermöglicht wird, so daß eine kostengünstige, genaue Chargensequenz bei hoher Betriebssicherheit erreicht werden kann.The advantages achieved with the invention are in particular due to the fact that a trigger or insertion force on the closure part blows and if necessary, a torque can be superimposed, whereby on the one hand by Creation of sliding friction reducing the forces on the lining of the Tapping area and thus largely preserving the shape of the melt channel is given, on the other hand, a quick and easy opening and Closing the tap opening is made possible, so that an inexpensive, exact batch sequence with high operational reliability can be achieved.

Dabei ist es besonders vorteilhaft, wenn die schlagende(n) Komponente(n) durch die auf den Verschlußteil aufgebrachte Axialkraft ausgelöst wird bzw. werden, weil damit auch die Verbindungselemente zum Werkzeug besondere Schonung erfahren bzw. eine besonders hohe Einsatzdauer aufweisen.It is particularly advantageous if the striking component (s) pass through the axial force applied to the closure part is or are triggered because so that the connecting elements to the tool are particularly protected or have a particularly long service life.

Für ein, oftmals im praktischen Einsatz erforderliches axiales Umstellen der Krafteinwirkung auf den Verschlußteil zur schonenden Lösung desselben aus dem Feuerfestmauerwerk ist es, wie gefunden wurde, günstig, wenn der Verschlußteil lösbar mit einem Übertragungsteil eines einzigen in axialer Richtung alternativ beidseitig wirkenden Schlagwerkes, zum Beispiel einer Gegenschlageinrichtung, verbunden, vorzugsweise spielfrei verbunden, wird, wonach das Schlagwerk dem Verschlußteil eine in Längsrichtung durch schlagende Komponenten überlagerte An- oder Rückstellungskraft, gegebenenfalls bei Einwirkung eines Drehmomentes, vermittelt und diesen in die oder aus der Abstichöffnung bewegt.For an axial changeover of the, often required in practical use Force on the closure part to gently release it from the Refractory masonry, as has been found, is beneficial if the fastener part detachable with a transmission part of a single alternative in the axial direction striking mechanism acting on both sides, for example a counter-impact device, connected, preferably connected without play, after which the striking mechanism Closure part overlaid in the longitudinal direction by striking components Starting or restoring force, if necessary with the action of a torque, mediated and moved this in or out of the tap hole.

Besonders wirksam und vorteilhaft, insbesondere für große metallurgische Gefäße mit gegebenenfalls erhöhtem statischen Druck der Schmelzen kann es sein, wenn der Verschlußteil durch ein hydraulisch angetriebenes Rohrkolben-Schlagwerk oder dergleichen Drehschlagwerk beaufschlagt und bewegt wird. Dabei ist im Hinblick auf die Offenstellungs- und Verschließtechnologie von Vorteil, wenn die Wirkung erlangenden Kräfte, vorzugsweise die An- oder Rückstellungskraft, insbesondere die schlagende Komponente der jeweiligen Kraft und/oder des Drehmomentes bzw. die Schlagenergie, geregelt werden.Particularly effective and advantageous, especially for large metallurgical vessels with possibly increased static pressure of the melts, it can be if the closure part by a hydraulically driven cattail impact mechanism or the same rotary impact mechanism is acted upon and moved. It is in view on the opening and closing technology is an advantage if the effect gaining forces, preferably the on or restoring force, in particular the striking component of the respective force and / or the torque or the impact energy are regulated.

Die weitere Aufgabe der Erfindung wird bei einem Hammer der vorgenannten Art dadurch gelöst, daß der im Schlagwerk axial verschiebbare, mindestens einerseits mit einem Werkzeug oder dergleichen Mittel verbindbare Übertragungsteil mit einem Innenschaft und zwei diesem in Axrichtung gegenüberliegenden, im Durchmesser vergrößerten Amboßteilen ausgebildet ist und der im Schlagwerk mittels des Druckmediums hin- und herbewegbare Kolben eine Rohrform aufweist und den Innenschaft des Übertragungsteiles in Axrichtung verschiebbar koaxial umschließt, wobei durch ein axiales Verschieben des Übertragungsteiles jeweils einer der Amboßteile an die diesem gegenüberliegende Stirnfläche im Bereich einer Endposition des Rohrkolbens anstellbar und mit Schlagenergie beaufschlagbar ist.The further object of the invention is in a hammer of the aforementioned type solved in that the axially displaceable in the striking mechanism, at least on the one hand with a tool or similar means connectable transmission part an inner shaft and two opposite this in the axial direction, in Diameter enlarged anvil parts is formed and in the striking mechanism piston which can be moved back and forth by means of the pressure medium has a tubular shape and the inner shaft of the transmission part is axially displaceable coaxially encloses, each by an axial displacement of the transmission part one of the anvil parts to the opposite end face in the area of a End position of the cattail is adjustable and impact energy can be applied.

Erstmals, bei Überwindung von Vorurteilen der Fachwelt, wird dadurch ein mittels eines Druckmediums betriebenes Schlaggerät offenbart, welches in einfacher Weise in beide Axrichtungen des Werkzeugteiles effizient wirkend Schlagarbeit ausführen kann. Die damit erzielten Vorteile liegen sowohl in der Einfachheit und im geringen Bauvolumen der Einrichtung als auch im Einsatz eines einzigen, unmittelbar in beide Axrichtungen wirksam erstellbaren Schlagwerkes. Bei einer Umkehr der Schlagrichtung ist somit keinerlei Umschaltung des Druckmediums gegebenenfalls auf separierte Einheiten erforderlich, denn das erfindungsgemäße Schlagwerk kann das Werkzeug in beiden Richtungen beaufschlagen. Dabei ist es wichtig, daß das Schlagwerk axial alternativ wirksame Stützflächen für die dem Innenschaft gegenüberliegende Amboßteilen des Übertragungsteiles aufweist. For the first time, when prejudices of the professional world are overcome, this becomes a means a printing medium operated impact device disclosed, which in simple Effective impact work in both axial directions of the tool part can execute. The advantages achieved thereby lie in both the simplicity and the low construction volume of the facility as well as the use of a single, Impact mechanism that can be created directly in both axial directions. At a Reversing the direction of impact is therefore no change of the print medium may be necessary on separate units, because the invention Striking mechanism can act on the tool in both directions. It is important that the striking mechanism axially alternatively effective support surfaces for the Inner shaft opposite anvil parts of the transmission part.

Der Vortrieb oder Rückzug des Werkzeuges kann besonders günstig auf die Eigenschaften des zu bearbeitenden Materials und auf den Werkzeugschneidbereich abgestimmt werden, wenn der Rohrkolben durch eine Umsteuervorrichtung alternativ mit Druckmedium beaufschlagbar ist, wobei eine Regelung der Schlagenergie des Rohrkolbens durch die Menge je Zeiteinheit und/oder den Druck als zugeführtes Medium erstellbar ist.The advance or retraction of the tool can be particularly favorable on the Properties of the material to be processed and on the Tool cutting range can be matched when the cattail through a Reversing device can alternatively be acted upon with pressure medium, one Regulation of the impact energy of the cattail by the amount per unit of time and / or the pressure can be generated as the supplied medium.

Sowohl in verfahrenstechnischer als auch in wirtschaftlicher Hinsicht hat sich eine Verwendung eines vorstehend gekennzeichneten Schlagwerkes für ein Offenstellen und/oder ein Verschließen einer Abstichöffnung in einer Wand eines metallurgischen Gefäßes als vorteilhaft herausgestellt, wobei es besonders bevorzugt ist, wenn das Schlagwerk einen hydraulischen, vorzugsweise einen ölhydraulischen Antrieb besitzt.Both in process engineering and in economic terms, there has been one Use of a striking mechanism marked above for an opening and / or closing a tap opening in a wall of a metallurgical vessel turned out to be advantageous, being particularly it is preferred if the striking mechanism is a hydraulic one, preferably one owns hydraulic drive.

Im folgenden wird die Erfindung anhand einer lediglich einen Ausführungsweg darstellenden schematischen Zeichnung eines Hammers näher erläutert, wobei eine Bezugszeichenliste der Figl 1 nachstehend angegeben ist.

1
Schlagwerk
11
Stützfläche
12
Stützfläche
2
Übertragungsteil
21
Innenschaft
22
Amboßteil
221
Anlagefläche
23
Amboßteil
231
Anlagefläche
3
Werkzeug
4
Kolben
41
Stirnfläche
42
Stirnfläche
5
Getriebe
6
Drehmotor
7
Umsteuereinrichtung
The invention is explained in more detail below with reference to a schematic drawing of a hammer which represents only one embodiment, a list of reference numerals in FIG. 1 being given below.
1
striking mechanism
11
support surface
12
support surface
2
transmission part
21
inner shaft
22
anvil
221
contact surface
23
anvil
231
contact surface
3
Tool
4
piston
41
face
42
face
5
transmission
6
rotary engine
7
Reverser

Ein Werkzeug 3, zum Beispiel ein Stopfenelement, ist mit einem Übertragungsteil 2 in einem Schlagwerk 1 wirkverbunden. Erfolgt nun ein Anstsellen des Werkzeuges 3 an einen Bearbeitungsgegenstand, gegebenenfalls ein Anstellen eines Stopfens in einer Abstichöffnung oder dergleichen, so wird vorerst der Übertragungsteil 2, der beidseitig jeweils einen Amboßteil 22 und 23 aufweist, im Schlagwerk 1 axial verschoben, bis, wie schematisch dargestellt ist, der Amboßteil 23 mit einer Anlagefläche 231 an einer Stützfläche 12 im Schlagwerk 1 in Axrichtung des Werkzeuges 3 anliegt. In der Folge verursachte die Anstellkraft des Werkzeuges 3 eine Gegenkraft, welche an der Anlagefläche 231 des Amboßteiles 23 mittels der Stützfläche 12 in das Schlagwerk 1 eingeleitet wird. Ein durch ein Druckmedium beaufschlagter und mittels einer Umsteuereinrichtung 7 im Schlagwerk 1 hin- und herbewegter, koaxial um einen Innenschaft 21 des Übertragungsteiles 2 angeordneter Kolben 4 bringt über eine Stirnfläche 42 Schlagenergie in die Anlagefläche 231 bzw. in den Amboßteil 23 ein und überlagert somit die Anstellkraft mit Schlagenergie. Der Übertragungsteil 2 kann dabei auch gegebenenfalls bei Einschaltung eines Getriebes 5 durch einen Drehmotor 6 mit einem Drehmoment beaufschlagt werden.A tool 3, for example a plug element, is provided with a transmission part 2 operatively connected in a percussion mechanism 1. Tool 3 is now switched on to an object to be processed, possibly a stopper in a tap opening or the like, the transmission part 2, the has an anvil part 22 and 23 on both sides, axially in the striking mechanism 1 moved until, as is shown schematically, the anvil part 23 with a Contact surface 231 on a support surface 12 in the striking mechanism 1 in the axial direction of the Tool 3 is present. As a result, the contact force of tool 3 caused a counterforce, which on the contact surface 231 of the anvil part 23 by means of Support surface 12 is introduced into the striking mechanism 1. One through a print medium acted upon and by means of a reversing device 7 in the striking mechanism 1 back and forth moved coaxially around an inner shaft 21 of the transmission part 2 arranged piston 4 brings impact energy into the 42 through an end face Contact surface 231 or in the anvil part 23 and thus superimposes the contact force with impact energy. The transmission part 2 can also optionally Activation of a transmission 5 by a rotary motor 6 with a torque be charged.

Wird eine negative Anstellkraft bzw. eine Abzugskraft für das Werkzeug 3 gefordert, so erfolgt im richtungsgeführten Schlagwerk 1 eine Axialverschiebung des Übertragungsteiles 2, wodurch der dem vorher beaufschlagten Amboßteil 23 gegenüberliegende Amboßteil 22 in eine Wirkposition tritt. Dabei ist eine Einleitung der Zugkraft über die Anlagefläche 221 vom Übertragungsteil 2 in die Stützfläche 11 im Schlagwerk 1 sowie eine Schlagenergieeinbringung in den Übertragungsteil 2 vom Kolben 4 über dessen Stirnfläche 41 und die Anlagefläche 221 des Amboßteiles 22 sichergestellt. Auf einfache Weise kann dadurch eine unmittelbare Umstellung von Anstellung und Abzug eines Werkzeuges mit jeweils überlagerter Schlagenergie und gegebenenfalls mit einem dergleichen Drehmoment mittels eines einzigen Schlagwertes erfolgen.If a negative positioning force or a pull-off force is required for the tool 3, so there is an axial displacement of the directional hammer mechanism 1 Transmission part 2, whereby the anvil part 23 opposite anvil part 22 enters an operative position. Here is an introduction the tensile force via the contact surface 221 from the transmission part 2 into the support surface 11 in the striking mechanism 1 and an impact energy input into the transmission part 2 from the piston 4 via its end face 41 and the contact surface 221 of the Anvil part 22 ensured. In a simple way this can be an immediate Conversion of the position and deduction of a tool with a superimposed one Impact energy and possibly with the same torque by means of a single impact value.

Die hohe Flexibilität, Sicherheit und einfache sowie kleinvolumige Bauweise derartiger in Axrichtung alternativ einsetzbarer Schlagwerke erbringen besondere Vorteile bei deren Einsatz zum Offenstellen und Verschließen von Abstichöffnungen in metallurgischen Gefäßen.The high flexibility, security and simple as well as small-volume construction Such striking mechanisms which can be used alternatively in the axial direction produce special effects Advantages of using them to open and close tap openings in metallurgical vessels.

Claims (7)

  1. A method of opening or closing a tapping hole in a wall of a metallurgical vessel provided with a refractory lining, for example a copper-matte smelting furnace, a blast furnace or the like, by means of a preferably metallic closing part, characterised in that an application or return force acting in the intended or desired direction is exerted on the closing part in the region of the tapping hole, optionally with simultaneous application of a turning moment, and, consequentially to the force and/or moment, a percussive component acting in the same direction is superimposed and the closing part is moved.
  2. A method according to claim 1, characterised in that the percussive component(s) is/are triggered by the axial force applied to the closing part and is/are generated by a single percussion mechanism acting alternately on both sides in the axial direction.
  3. A pneumatically or hydraulically operating hammer, in particular a drill hammer, substantially comprising a percussion mechanism (1) having a transmission part (2) which is connected to a tool (3) and can be applied to a percussion piston (4), and optionally a torque motor (6) and gear (5) operatively connected to the transmission part, characterised in that the transmission part (2), which is axially displaceable in the percussion mechanism (1) and connectable at at least one end to a tool (3) or similar means (3), is formed with an inner shaft (21) and two anvil parts (22, 23) of larger diameter facing the inner shaft (21) in the axial direction, and the piston (4), which is movable in the percussion mechanism (1) in a reciprocating manner by means of the pressure medium, has a tubular form and co-axially surrounds the inner shaft (21) of the transmission part (2) so as to be displaceable in the axial direction, wherein, by means of axial displacement of the transmission part (2), a respective one of the anvil parts (22, 23) can be applied to the facing end surface (41, 42) in the region of an end position of the tubular piston (4) and can be acted upon by percussive energy.
  4. A hammer according to claim 3, characterised in that the percussion mechanism (1) has axially alternately acting supporting surfaces (11, 12) for the anvil parts (22, 23) of the transmission part (2) facing the inner shaft (21).
  5. A hammer according to claim 3 or 4, characterised in that the tubular piston (4) may alternately be acted upon by pressure medium by means of a reversing device (7), the percussive energy of the tubular piston (4) being adjustable by the amount per unit time and/or the pressure of supplied medium.
  6. Use of a hammer according to any one of claims 3 to 5 for opening and/or closing a tapping hole in a wall of a metallurgical vessel by a method according to claim 1 or 2.
  7. Use of a hammer according to claim 6, characterised in that the hammer has a hydraulic, preferably oil-hydraulic, adjustable drive.
EP19990890007 1998-01-19 1999-01-19 Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method Expired - Lifetime EP0930476B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6698A AT407919B (en) 1998-01-19 1998-01-19 PNEUMATICALLY OR HYDRAULICALLY OPERATING HAMMER AND USE OF THE HAMMER TO OPEN OR SEAL A TAP OPENING OF A METALLURGICAL VESSEL
AT6698 1998-01-19

Publications (2)

Publication Number Publication Date
EP0930476A1 EP0930476A1 (en) 1999-07-21
EP0930476B1 true EP0930476B1 (en) 2004-04-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990890007 Expired - Lifetime EP0930476B1 (en) 1998-01-19 1999-01-19 Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method

Country Status (4)

Country Link
EP (1) EP0930476B1 (en)
AT (1) AT407919B (en)
DE (1) DE59909212D1 (en)
DK (1) DK0930476T3 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
AT511810B1 (en) * 2011-09-27 2013-03-15 Tmt Bbg Res And Dev Gmbh HITCH FOR A HAMMAR EQUIPMENT AND METHOD FOR DISPLAYING A HITCH OPENING
TWI587990B (en) * 2013-03-04 2017-06-21 Tmt Bbg研究與發展有限公司 Control means of the working frequency of an impact testing machine

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JP3817617B2 (en) * 1999-05-10 2006-09-06 新日本製鐵株式会社 Drilling device
WO2013095164A1 (en) * 2011-12-19 2013-06-27 Flexidrill Limited Extended reach drilling

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DE437206C (en) * 1926-05-05 1926-11-16 Ag Deutsche Maschf Device for parting blast furnaces
US4342255A (en) * 1976-06-09 1982-08-03 Mitsui Engineering And Shipbuilding Co., Ltd. Oscillator actuated hydraulic impulse device
FI60151C (en) * 1979-06-26 1981-12-10 Tampella Oy Ab HYDRAULISK SLAGANORDNING
FR2464303A1 (en) * 1979-09-05 1981-03-06 Atlas Copco France DEVICE FOR PUSHING IN AND REMOVING, BY PERCUSSION USING A SINGLE HAMMER AND WITH AUTOMATIC LOCKING, A BAR, FOR EXAMPLE A BAR IN CONTACT WITH THE CAST IRON AND PROJECTING OUTSIDE A BLAST FURNACE
DE3400302A1 (en) * 1984-01-03 1985-08-29 Mannesmann AG, 4000 Düsseldorf HYDRAULIC ACTUATOR
AT383866B (en) * 1984-07-06 1987-09-10 Ver Edelstahlwerke Ag DEVICE FOR IMPACTING AND / OR ROTATING DRILLING
DE3803625A1 (en) * 1988-02-06 1989-08-17 Dango & Dienenthal Maschbau METHOD AND DEVICE FOR OPENING THE STITCH HOLE OF OEFEN
DE4113323A1 (en) * 1991-04-24 1992-10-29 Krupp Maschinentechnik PERFORMANCE FOR A DRILL ROD
LU88129A1 (en) * 1992-06-10 1994-03-01 Wurth Paul Sa UNIVERSAL CHUCK FOR A DRILLING MACHINE FOR A TAP HOLE OF A TANK OVEN

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511810B1 (en) * 2011-09-27 2013-03-15 Tmt Bbg Res And Dev Gmbh HITCH FOR A HAMMAR EQUIPMENT AND METHOD FOR DISPLAYING A HITCH OPENING
AT511810A4 (en) * 2011-09-27 2013-03-15 Tmt Bbg Res And Dev Gmbh HITCH FOR A HAMMAR EQUIPMENT AND METHOD FOR DISPLAYING A HITCH OPENING
EP2574874A1 (en) 2011-09-27 2013-04-03 TMT -BBG Research und Development GmbH Striking mechanism for a hammer device and method for opening a tap hole
JP2013071243A (en) * 2011-09-27 2013-04-22 Tmt-Bbg Research & Development Gmbh Impact tool for hammer device and method for opening tap hole
TWI587990B (en) * 2013-03-04 2017-06-21 Tmt Bbg研究與發展有限公司 Control means of the working frequency of an impact testing machine

Also Published As

Publication number Publication date
DE59909212D1 (en) 2004-05-27
ATA6698A (en) 2000-11-15
EP0930476A1 (en) 1999-07-21
AT407919B (en) 2001-07-25
DK0930476T3 (en) 2004-08-16

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