EP3938547B1 - Taphole plugging gun - Google Patents

Taphole plugging gun Download PDF

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Publication number
EP3938547B1
EP3938547B1 EP19711076.0A EP19711076A EP3938547B1 EP 3938547 B1 EP3938547 B1 EP 3938547B1 EP 19711076 A EP19711076 A EP 19711076A EP 3938547 B1 EP3938547 B1 EP 3938547B1
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EP
European Patent Office
Prior art keywords
material chamber
nozzle part
ring segment
tap hole
edge portion
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.)
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Application number
EP19711076.0A
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German (de)
French (fr)
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EP3938547A1 (en
Inventor
Franck MORELLATO
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TMT Tapping Measuring Technology SARL
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TMT Tapping Measuring Technology SARL
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Publication of EP3938547A1 publication Critical patent/EP3938547A1/en
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Publication of EP3938547B1 publication Critical patent/EP3938547B1/en
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Classifications

    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof

Definitions

  • the invention relates to a taphole gun with a material chamber for accommodating a volume of plugging compound, a mouthpiece for introduction into a taphole and a nozzle part which tapers towards the mouthpiece and is connected to the material chamber by means of a detachable connecting device.
  • Taphole guns of the type mentioned above are used to close the tapholes of reduction or smelting furnaces, e.g. During the tamping operation, the taphole tamping gun is pressed against the kiln breast with great force by means of a pivoting device, with the pressing force being maintained until the plastic tamping mass pressed through the mouthpiece of the taphole tamping gun into the taphole opening of the kiln has hardened.
  • the stuffing compound is received in a material chamber of the taphole gun, which is regularly designed as a cylinder space, and is removed from the material chamber by means of a tamping piston is pressed through the mouthpiece of the taphole tamping gun into the taphole opening.
  • a regularly cone-shaped nozzle part is arranged between the material chamber and the mouthpiece, which is interchangeably connected to the material chamber via a connecting device.
  • a taphole gun which has a nozzle part which is connected to the material chamber via a flange connection.
  • the flange connection connects the nozzle part to the material chamber in a connection plane arranged perpendicularly to the ejection direction, with connecting bolts arranged distributed over the circumference of the taphole tamping gun and each extending parallel to the ejection direction connecting two opposite flanges arranged on the material chamber and the nozzle part to form the flange connection .
  • the present invention is therefore based on the object of proposing a taphole gun which has a connecting device which on the one hand enables a secure mechanical connection between the material chamber and the nozzle part and on the other hand enables the nozzle part to be replaced with comparatively little assembly effort.
  • the taphole gun according to the invention has the features of claim 1.
  • the material chamber and the nozzle part have axial connecting projections formed complementary to one another on two opposite axial connecting edges of a chamber wall of the material chamber and a nozzle wall of the nozzle part, such that the connecting projection formed on an upper part of the nozzle part rests on the one on a lower part of the between the connecting projection of the nozzle part and the upper part of the material chamber and/or between the connecting projection of the material chamber and the lower part of the nozzle part, a radial form-fitting engagement is formed, which is non-positively secured by means of a radially acting securing device.
  • the design of the connecting device according to the invention makes it possible to absorb the ejection forces that act separatingly on the connecting device through the form fit formed between the connecting projections, so that the radially effective securing device is only required to secure the arrangement of the connecting projections on one another, without the securing device for Recording the extrusion forces would be needed. Rather, the securing device serves to secure the position of the connecting projections in a plane that is perpendicular to the ejection direction.
  • the safety device can be arranged in such a way that access only from the top of the taphole gun is sufficient.
  • the connecting device it is possible to enable the establishment of the connection or the disconnection of the connection between the nozzle part and the material chamber by accessing the connecting device from the top of the taphole gun, so that it is also not necessary to remove any shielding device that may be arranged on the underside of the taphole gun as a prerequisite for access to the connecting device.
  • the connecting device enables both a secure mechanical connection between the material chamber and the nozzle part and simplified assembly work when replacing the nozzle part.
  • a ring segment web is formed radially inside on the nozzle wall to form the form-fitting engagement on a connecting wall section on the connecting projection of the nozzle part and/or a ring segment web is formed radially on the outside of the nozzle wall on a connecting edge section on the lower part of the nozzle part and engages in a ring segment groove formed on a connecting edge section on the connecting projection of the material chamber radially on the inside of the chamber wall.
  • the form-fitting engagement that is advantageously designed in this way makes it possible to carry out the form-fitting engagement without affecting the outer contour of the taphole gun, so that the transition between the nozzle part and the material chamber is designed to be essentially flush, particularly on the underside of the taphole gun, so that a correspondingly close radially adjacent Arrangement of an optionally arranged on the underside shielding device is possible and thus the arrangement of a shielding device on the taphole gun is made possible without the external dimensions of the taphole gun being significantly increased as a result.
  • connecting edge sections of the nozzle part are each provided with an annular segment web extending essentially over the entire length of the connecting edge sections and the connecting edge sections of the material chamber are each provided with an annular segment groove extending essentially over the entire length of the connecting edge sections, a continuous distribution of the connecting forces over the ensures the entire scope of the taphole gun or the connecting device.
  • the radially inner annular segment groove formed in the connecting projection of the material chamber preferably extends over a circumferential angle > 180°, such that mutually opposite ring segment groove ends have a vertical extension for the formation of vertical guides for ends of the ring segment web formed on the connecting projection of the nozzle part, so that the joining process is guided during the production of the form-fitting engagement.
  • connecting projections are detachably connected to one another on horizontal connecting edge sections lying opposite one another in order to form the securing device, the configuration of the securing device with only two securing elements is possible.
  • the safety device preferably has two bolt connections arranged in the region of the horizontal connection edge sections on the circumference of the taphole tamping gun.
  • the bolted connections are used for the non-positive connection of a connecting strap arranged on the horizontal connecting edge section of the nozzle part and a connecting strap arranged on the horizontal connecting edge section of the material chamber, the bolted connections can be realized in the simplest possible way.
  • the bolted connections each have a bolt, preferably designed as a threaded bolt, which is provided with a protective device arranged between the bolt and the mouthpiece and shielding the bolt from external influences, so that the function or handling of the bolted connection is not affected by external influences, such as metal or slag spatter coming from the tapping channel, which could possibly lead to corresponding deposits on the bolt connection.
  • a protective device arranged between the bolt and the mouthpiece and shielding the bolt from external influences, so that the function or handling of the bolted connection is not affected by external influences, such as metal or slag spatter coming from the tapping channel, which could possibly lead to corresponding deposits on the bolt connection.
  • At least one connecting strap of the bolted connections is provided with a protective web extending parallel to the bolt.
  • FIG 1 shows a taphole gun 20, shown with its essential components, with a—as in particular from the illustration according to FIG 4 emerges - designed as a hollow cylinder material chamber 21, which serves to accommodate a stuffing compound, which is filled into the material chamber 21 via a filling opening not shown in detail here and compressed in the material chamber 21 by means of a piston 22 guided in the material chamber 21 and from a via a nozzle part 23 with the material chamber 21 in communication mouthpiece 24, which is formed independently of the nozzle part 23 in the case of the present embodiment of the taphole gun 20, can be output into a not shown here taphole of a furnace device.
  • a stuffing compound which is filled into the material chamber 21 via a filling opening not shown in detail here and compressed in the material chamber 21 by means of a piston 22 guided in the material chamber 21 and from a via a nozzle part 23 with the material chamber 21 in communication mouthpiece 24, which is formed independently of the nozzle part 23 in the case of the present embodiment of the taphole gun 20, can be output into a not shown here tap
  • the nozzle part 23 enables a reduction in the inner diameter of the taphole gun 20 required for the transition from the material chamber 21 to the mouthpiece 24 and is truncated for this purpose, in particular obliquely truncated in the present embodiment.
  • a connecting device 25 formed between the material chamber 21 and the nozzle part 23 as a result of the compression forces transmitted from the piston 22 to the tamping mass, which, like 6 1 shows an axial connecting projection 28 and for producing a form-fitting connection between the material chamber 21 and the nozzle part 23 on an axial connecting edge 26 of a chamber wall 27 of the material chamber 21 has a connecting projection 30 on an axial connecting edge 54 of a nozzle wall 29 of the nozzle part 23 .
  • the connecting projection 30 of the nozzle part 23 is formed on an upper part 31 of the nozzle part 23 and the connecting projection 28 of the material chamber 21 is formed on a lower part 32 of the material chamber 21, so that the connecting projection 30 of the nozzle part 23 rests on the one formed on the material chamber 21 Connecting projection 28 rests, a radial form-fitting engagement being formed between the connecting projection 30 of the nozzle part 23 and a connecting edge section 33 on an upper part 34 of the material chamber 21 on the one hand and the connecting projection 28 of the material chamber 21 and a connecting edge section 35 on a lower part 36 of the nozzle part 23 on the other hand .
  • nozzle part 23 is on the one hand in a relative arrangement immediately before the production of the form-fitting engagement ( 6 ) and on the other hand in a relative arrangement immediately after the production of the form-fitting engagement ( 2 ) show, it is understandable that the nozzle part 23 is already secured in its relative position in the connection to the material chamber 21 by the effect of gravity after the positive engagement has been produced.
  • a radially effective securing device 37 is provided in addition to the form-fitting engagement, which is attached to horizontal connecting edge sections 38, 39 ( 6 ) one bolt connection each 40, 41 ( 1 ) have , which by means of a threaded bolt, not shown here, two opposite each other on the connecting edge portion 38 of the connecting projection 30 of the nozzle part 23 and on the connecting edge portion 39 of the connecting projection 28 connect the material chamber 21 formed connecting tabs 42 and 43 with each other.
  • the connecting projections 28, 30 are therefore secured in their radial arrangement by the bolt connections 40, 41, so that compression forces occurring in the taphole tamping gun 20 cannot lead to the form-fitting engagement formed between the connecting projections 28, 30, which is used to accommodate the axial portion which serves to compress forces is released.
  • a ring segment web 45 ( 4 ) is formed, which extends into an annular web groove 47 ( figure 5 ) intervenes.
  • a ring segment web 49 is formed radially on the outside on the nozzle wall 29, which engages in a ring segment groove 51 formed on a connecting edge section 50 on the connecting projection 28 of the material chamber 21, radially on the inside on the chamber wall 27.
  • the radially inner annular segment groove 51 formed in the connecting projection 28 of the material chamber 21 extends over a circumferential angle > 180° in such a way that opposite groove ends 52, 53 of the annular segment groove 51 can be used to form vertical guides for the ends of the Ring segment web 45, which extend vertically accordingly, can serve during the production of the engagement.
  • the bolt connections 40, 41 are designed so that a along a bolt axis 55, the connecting straps 42, 43 that connects the bolts non-positively to one another, which is preferably designed as a threaded bolt 75, through a protective device 56, which is formed from protective webs 57, 58 formed vertically on the connecting straps, which at the same time enable the connecting straps 42, 43 to be rigidly formed, to the mouthpiece 24 is protected against external influences.
  • a shielding device 76 is arranged on the lower part 32 of the material chamber 21 or on the lower part 36 of the nozzle part 23 , in particular to protect against thermal radiation emitted from below the taphole tamping gun 20 against the taphole tamping gun 20 .
  • the mouthpiece 24 is designed as a component formed independently of the nozzle part 23, with a hinge joint arrangement 59 being provided for connecting the mouthpiece 24 to the nozzle part 23, which has two oppositely arranged hinge joints 60, 61, which each a joint plate arrangement 64 formed here from two joint plates 62, 63 arranged parallel to one another and in the present case only one joint plate 65 having joint plate arrangement 66 of the nozzle part 23, which are connected to one another via a joint pin 67.
  • the joint plate 65 arranged on the mouthpiece 24 has a reveal section 68 of a joint eye 69 which is wedge-shaped in the direction of a joint axis 77 and which forms a wedge section 70 ( 9 ) of the hinge pin 67 has a complementary wedge formation, such that when the hinge pin 67 is arranged in the hinge joints 60, 61, the hinge pin, as in 7 shown, the joint strap arrangement 64 of the nozzle part 63 connects to the joint strap 65 of the mouthpiece 24 in such a way that the wedge section 70 is arranged in the joint eye 69 of the joint strap 65 and is non-rotatably connected to the joint strap 65 .
  • both hinge joints 60, 61 arranged opposite one another are provided with the joint pin 67 to form the joint axis 77, so that the mouthpiece 24 is fixed in relation to the nozzle part 23 and, if necessary, can be inserted into the taphole with a feed movement of the taphole tamping gun 20.
  • the mouthpiece 24 can be swiveled open on one side about the hinge axis 77 formed by the hinge pin 67 remaining in the hinge joint 60 or 61, for example for maintenance purposes.
  • the mouthpiece 24 can be pivoted about a joint axis 77 either in one direction or the other.
  • an engagement device is formed between opposing axial connecting edges 71, 72 of the nozzle part 23 and the mouthpiece 24, which here consists of an annular web 73 formed on the connecting edge 71 of the nozzle part 23 on the one hand and an annular groove formed on the connecting edge 72 of the mouthpiece 24 74 on the other hand is formed and a radial sealing of the connection formed by the hinge joint arrangement 59 between the nozzle part 23 and the mouthpiece 24 is made possible.
  • the annular web 73 preferably has a truncated cone-shaped cross section which is designed to be complementary to the cross section of the annular groove 74 . Due to the wedge effect made possible between the reveal sections 68 of the joint straps 65 and the wedge sections 70 of the joint bolts 67, an axial sealing force acting between the nozzle part 23 and the mouthpiece 24 can be generated by inserting the joint bolts 67 into the joint eyes 69 of the joint straps 65, with which a effective sealing relative arrangement between the mouthpiece 24 and the nozzle part 23 can be achieved.

Description

Die Erfindung betrifft eine Stichlochstopfkanone mit einer Materialkammer zur Aufnahme eines Stopfmassevolumens, einem Mundstück zur Einführung in ein Stichloch und einem in Richtung auf das Mundstück verjüngt ausgebildeten Düsenteil, das mittels einer lösbaren Verbindungseinrichtung mit der Materialkammer verbunden ist.The invention relates to a taphole gun with a material chamber for accommodating a volume of plugging compound, a mouthpiece for introduction into a taphole and a nozzle part which tapers towards the mouthpiece and is connected to the material chamber by means of a detachable connecting device.

Stichlochstopfkanonen der eingangs genannten Art werden zum Schlie-βen der Abstichöffnungen von Reduktions- oder Schmelzöfen, z.B. Hochöfen zur Roheisengewinnung und Niederschachtöfen zur Erschmelzung von Nichteisen-Metallen, Ferrolegierungen usw. eingesetzt. Beim Stopfarbeitsgang wird die Stichlochstopfkanone mittels einer Schwenkvorrichtung mit einer großen Kraft gegen die Ofenbrust gepresst, wobei die Anpresskraft so lange aufrechterhalten wird, bis die durch das Mundstück der Stichlochstopfkanone in die Stichlochöffnung des Ofens eingepresste plastische Stopfmasse erhärtet ist.Taphole guns of the type mentioned above are used to close the tapholes of reduction or smelting furnaces, e.g. During the tamping operation, the taphole tamping gun is pressed against the kiln breast with great force by means of a pivoting device, with the pressing force being maintained until the plastic tamping mass pressed through the mouthpiece of the taphole tamping gun into the taphole opening of the kiln has hardened.

Zum Betrieb der Stichlochstopfkanone wird die Stopfmasse in einer regelmäßig als Zylinderraum ausgebildeten Materialkammer der Stichlochstopfkanone aufgenommen und aus der Materialkammer mittels eines Stopfkolbens durch das Mundstück der Stichlochstopfkanone in die Stichlochöffnung eingepresst. Zur Reduzierung des Durchmessers der Stichlochstopfkanone im Übergang zwischen der Materialkammer und dem Mundstück ist zwischen der Materialkammer und dem Mundstück ein regelmäßig konusförmig ausgebildetes Düsenteil angeordnet, das über eine Verbindungseinrichtung austauschbar mit der Materialkammer verbunden ist. Aufgrund der starken Durchmesserreduzierung im Verlauf des Düsenteils zum Mundstück hin, wirken auf die Verbindungseinrichtung während des Auspressvorgangs hohe Kräfte, wobei zwei wesentliche Anforderungen an die Verbindungseinrichtung darin bestehen, dass die Verbindungseinrichtung einerseits zum Austausch des Düsenteils leicht lösbar sein muss und andererseits über eine ausreichende Stabilität verfügen muss, um ohne Beeinträchtigung der Lösbarkeit die beim Auspressvorgang wirkenden Kräfte sicher aufzunehmen.To operate the taphole gun, the stuffing compound is received in a material chamber of the taphole gun, which is regularly designed as a cylinder space, and is removed from the material chamber by means of a tamping piston is pressed through the mouthpiece of the taphole tamping gun into the taphole opening. To reduce the diameter of the taphole gun in the transition between the material chamber and the mouthpiece, a regularly cone-shaped nozzle part is arranged between the material chamber and the mouthpiece, which is interchangeably connected to the material chamber via a connecting device. Due to the strong reduction in diameter in the course of the nozzle part towards the mouthpiece, high forces act on the connecting device during the squeezing process, with two essential requirements for the connecting device being that the connecting device must be easy to detach for replacing the nozzle part on the one hand and have sufficient stability on the other must have in order to safely absorb the forces acting during the pressing process without impairing the detachability.

Aus der WO 2011/089054 A1 ist eine Stichlochstopfkanone bekannt, die ein Düsenteil aufweist, welches über eine Flanschverbindung mit der Materialkammer verbunden ist. Die Flanschverbindung verbindet das Düsenteil mit der Materialkammer in einer senkrecht zur Auspressrichtung angeordneten Verbindungsebene, wobei zur Ausbildung der Flanschverbindung über den Umfang der Stichlochstopfkanone verteilt angeordnete und sich jeweils parallel zur Auspressrichtung erstreckende Verbindungsbolzen zwei einander gegenüberliegende, an der Materialkammer und dem Düsenteil angeordnete Flansche miteinander verbinden. Aufgrund der sich parallel zur Auspressrichtung erstreckenden Verbindungsbolzen sind diese hinsichtlich ihrer Anzahl und ihrer Dimension so auszugestalten, dass die Auspresskräfte sicher über die Bolzen übertragen werden können, ohne dass hierdurch die Abdichtung der Stichlochstopfkanone in der Verbindungsebene gefährdet ist, oder dass es sogar zu einem Bauteilversagen der Bolzenverbindungen kommen kann.From the WO 2011/089054 A1 a taphole gun is known which has a nozzle part which is connected to the material chamber via a flange connection. The flange connection connects the nozzle part to the material chamber in a connection plane arranged perpendicularly to the ejection direction, with connecting bolts arranged distributed over the circumference of the taphole tamping gun and each extending parallel to the ejection direction connecting two opposite flanges arranged on the material chamber and the nozzle part to form the flange connection . Due to the connecting bolts running parallel to the ejection direction, these must be designed in terms of their number and dimensions in such a way that the ejection forces can be safely transmitted via the bolts without endangering the sealing of the taphole tamping gun in the connection level or even causing component failure the bolt connections can come.

Aufgrund der Vielzahl der über dem Umfang der Stichlochstopfkanone zur Ausbildung der Flanschverbindung angeordneten Bolzenverbindungen ergibt sich auch ein entsprechender Montageaufwand bei einem Austausch des Düsenteils, der gegebenenfalls noch dadurch erhöht wird, dass eine regelmäßig an der Unterseite der Stichlochstopfkanone angeordnete Abschirmeinrichtung zur Abschirmung der Stichlochstopfkanone gegenüber der in einer Betriebsstellung der Stichlochstopfkanone aus einer Abstichrinne gegen die Stichlochstopfkanone gerichtete Wärmestrahlung vor der Montage oder Demontage des Düsenteils von der Stichlochstopfkanone entfernt werden muss, um einen Zugang auch zu den im Bereich der Unterseite der Stichlochstopfkanone angeordneten Bolzenverbindungen zu ermöglichen.Due to the large number of bolt connections arranged over the circumference of the taphole gun to form the flange connection there is also a corresponding assembly effort when replacing the nozzle part, which may be increased even further by the fact that a shielding device is regularly arranged on the underside of the taphole tamping gun to shield the taphole tamping gun from the thermal radiation directed from a tapping channel towards the taphole tamping gun in an operating position of the taphole tamping gun in front of the Assembly or disassembly of the nozzle part must be removed from the taphole gun to allow access to the arranged in the area of the underside of the taphole gun bolt connections.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Stichlochstopfkanone vorzuschlagen, die eine Verbindungseinrichtung aufweist, welche einerseits eine sichere mechanische Verbindung zwischen der Materialkammer und dem Düsenteil und andererseits einen Austausch des Düsenteils mit vergleichbar geringem Montageaufwand ermöglicht.The present invention is therefore based on the object of proposing a taphole gun which has a connecting device which on the one hand enables a secure mechanical connection between the material chamber and the nozzle part and on the other hand enables the nozzle part to be replaced with comparatively little assembly effort.

Zur Lösung dieser Aufgabe weist die erfindungsgemäße Stichlochstopfkanone die Merkmale des Anspruchs 1 auf.To solve this problem, the taphole gun according to the invention has the features of claim 1.

Erfindungsgemäß weisen zur Ausbildung der Verbindungseinrichtung die Materialkammer und das Düsenteil an zwei einander gegenüberliegenden axialen Verbindungsrändern einer Kammerwand der Materialkammer und einer Düsenwand des Düsenteils komplementär zueinander ausgebildete axiale Verbindungsvorsprünge auf, derart, dass der an einem Oberteil des Düsenteils ausgebildete Verbindungsvorsprung auf den an einem Unterteil der Materialkammer ausgebildeten Verbindungsvorsprung angeordnet ist, wobei zwischen dem Verbindungsvorsprung des Düsenteils und dem Oberteil der Materialkammer und/oder dem Verbindungsvorsprung der Materialkammer und dem Unterteil des Düsenteils ein radialer formschlüssiger Eingriff ausgebildet ist, der mittels einer radial wirkenden Sicherungseinrichtung kraftschlüssig gesichert ist.According to the invention, to form the connecting device, the material chamber and the nozzle part have axial connecting projections formed complementary to one another on two opposite axial connecting edges of a chamber wall of the material chamber and a nozzle wall of the nozzle part, such that the connecting projection formed on an upper part of the nozzle part rests on the one on a lower part of the between the connecting projection of the nozzle part and the upper part of the material chamber and/or between the connecting projection of the material chamber and the lower part of the nozzle part, a radial form-fitting engagement is formed, which is non-positively secured by means of a radially acting securing device.

Die erfindungsgemäße Ausbildung der Verbindungseinrichtung ermöglicht die Aufnahme der trennend auf die Verbindungseinrichtung wirkenden Auspresskräfte durch den zwischen den Verbindungsvorsprüngen ausgebildeten Formschluss, so dass die radial wirksame Sicherungseinrichtung nur noch dazu benötigt wird, um die Verbindungsvorsprünge in ihrer Anordnung aufeinander zu sichern, ohne dass die Sicherungseinrichtung zur Aufnahme der Auspresskräfte benötigt werden würde. Vielmehr dient die Sicherungseinrichtung zur Sicherung der Position der Verbindungsvorsprünge in einer bezogen auf die Auspressrichtung senkrechten Ebene. Zum einen sind hierdurch keine besonderen Anforderungen mit der Dimensionierung der Sicherungseinrichtung verbunden, zum anderen kann die Sicherungseinrichtung so angeordnet werden, dass ein Zugriff ausschließlich von der Oberseite der Stichlochstopfkanone ausreichend ist.The design of the connecting device according to the invention makes it possible to absorb the ejection forces that act separatingly on the connecting device through the form fit formed between the connecting projections, so that the radially effective securing device is only required to secure the arrangement of the connecting projections on one another, without the securing device for Recording the extrusion forces would be needed. Rather, the securing device serves to secure the position of the connecting projections in a plane that is perpendicular to the ejection direction. On the one hand, there are no special requirements associated with the dimensioning of the safety device, and on the other hand, the safety device can be arranged in such a way that access only from the top of the taphole gun is sufficient.

Darüber hinaus ist es aufgrund der Ausgestaltung der Verbindungseinrichtung möglich, die Herstellung der Verbindung bzw. die Trennung der Verbindung zwischen dem Düsenteil und der Materialkammer durch einen Zugriff auf die Verbindungseinrichtung von der Oberseite der Stichlochstopfkanone her zu ermöglichen, so dass es auch nicht erforderlich ist, eine gegebenenfalls auf der Unterseite der Stichlochstopfkanone angeordnete Abschirmeinrichtung als Voraussetzung für den Zugriff auf die Verbindungseinrichtung zu entfernen.In addition, due to the configuration of the connecting device, it is possible to enable the establishment of the connection or the disconnection of the connection between the nozzle part and the material chamber by accessing the connecting device from the top of the taphole gun, so that it is also not necessary to remove any shielding device that may be arranged on the underside of the taphole gun as a prerequisite for access to the connecting device.

Zusammenfassend kann daher festgestellt werden, dass die Verbindungseinrichtung sowohl eine sichere mechanische Verbindung zwischen der Materialkammer und dem Düsenteil als auch einen erleichterten Montageaufwand beim Austausch des Düsenteils ermöglicht.In summary, it can therefore be stated that the connecting device enables both a secure mechanical connection between the material chamber and the nozzle part and simplified assembly work when replacing the nozzle part.

Gemäß einer vorteilhaften Ausführungsform ist zur Ausbildung des formschlüssigen Eingriffs an einem Verbindungswandabschnitt am Verbindungsvorsprung des Düsenteils radial innen an der Düsenwand ein Ringsegmentsteg ausgebildet, der in einer an einem Verbindungsrandabschnitt am Oberteil der Materialkammer radial außen an der Kammerwand ausgebildete Ringsegmentnut eingreift und/oder an einem Verbindungsrandabschnitt am Unterteil des Düsenteils radial außen an der Düsenwand ein Ringsegmentsteg ausgebildet ist, der in eine an einem Verbindungsrandabschnitt am Verbindungsvorsprung der Materialkammer radial innen an der Kammerwand ausgebildete Ringsegmentnut eingreift.According to an advantageous embodiment, a ring segment web is formed radially inside on the nozzle wall to form the form-fitting engagement on a connecting wall section on the connecting projection of the nozzle part and/or a ring segment web is formed radially on the outside of the nozzle wall on a connecting edge section on the lower part of the nozzle part and engages in a ring segment groove formed on a connecting edge section on the connecting projection of the material chamber radially on the inside of the chamber wall.

Der derart vorteilhaft ausgebildete formschlüssige Eingriff ermöglicht es, den formschlüssigen Eingriff ohne Auswirkung auf die Außenkontur der Stichlochstopfkanone auszuführen, so dass insbesondere auf der Unterseite der Stichlochstopfkanone der Übergang zwischen dem Düsenteil und der Materialkammer im Wesentlichen flächenbündig ausgebildet ist, so dass eine entsprechend dicht radial benachbarte Anordnung einer gegebenenfalls an der Unterseite angeordneten Abschirmeinrichtung möglich ist und somit die Anordnung einer Abschirmeinrichtung an der Stichlochstopfkanone ermöglicht wird, ohne dass hierdurch die äußeren Abmessungen der Stichlochstopfkanone wesentlich vergrößert werden.The form-fitting engagement that is advantageously designed in this way makes it possible to carry out the form-fitting engagement without affecting the outer contour of the taphole gun, so that the transition between the nozzle part and the material chamber is designed to be essentially flush, particularly on the underside of the taphole gun, so that a correspondingly close radially adjacent Arrangement of an optionally arranged on the underside shielding device is possible and thus the arrangement of a shielding device on the taphole gun is made possible without the external dimensions of the taphole gun being significantly increased as a result.

Darüber hinaus ermöglicht die vorstehend vorteilhafte Ausgestaltung des formschlüssigen Eingriffs mittels des Eingriffs zwischen einem Ringsegmentsteg und einer Ringsegmentnut eine über den Umfang gleichmäßig verteilte Übertragung der Verbindungskräfte mit einer entsprechend gleichmäßigen Abdichtung über den gesamten Umfang.In addition, the above advantageous embodiment of the form-fitting engagement by means of the engagement between a ring segment web and a ring segment groove enables the connection forces to be transmitted evenly distributed over the circumference with a correspondingly uniform seal over the entire circumference.

Wenn sich die Verbindungsrandabschnitte des Düsenteils mit jeweils einem sich im Wesentlichen über die gesamte Länge der Verbindungsrandabschnitte erstreckenden Ringsegmentsteg und die Verbindungsrandabschnitte der Materialkammer mit jeweils einem sich im Wesentlichen über die gesamte Länge der Verbindungsrandabschnitte erstreckenden Ringsegmentnut versehen sind, ist eine kontinuierliche Verteilung der Verbindungskräfte über den gesamten Umfang der Stichlochstopfkanone bzw. der Verbindungseinrichtung gewährleistet.If the connecting edge sections of the nozzle part are each provided with an annular segment web extending essentially over the entire length of the connecting edge sections and the connecting edge sections of the material chamber are each provided with an annular segment groove extending essentially over the entire length of the connecting edge sections, a continuous distribution of the connecting forces over the ensures the entire scope of the taphole gun or the connecting device.

Vorzugsweise erstreckt sich die im Verbindungsvorsprung der Materialkammer ausgebildete, radial innere Ringsegmentnut über einen Umfangswinkel > 180°, derart, dass einander gegenüberliegende Ringsegmentnutenden zur Ausbildung von vertikalen Führungen für am Verbindungsvorsprung des Düsenteils ausgebildete Enden des Ringsegmentstegs eine vertikale Erstreckung aufweisen, so dass der Fügevorgang bei der Herstellung des formschlüssigen Eingriffs geführt ist.The radially inner annular segment groove formed in the connecting projection of the material chamber preferably extends over a circumferential angle > 180°, such that mutually opposite ring segment groove ends have a vertical extension for the formation of vertical guides for ends of the ring segment web formed on the connecting projection of the nozzle part, so that the joining process is guided during the production of the form-fitting engagement.

Wenn zur Ausbildung der Sicherungseinrichtung die Verbindungsvorsprünge an einander gegenüberliegenden, horizontalen Verbindungsrandabschnitten lösbar miteinander verbunden sind, ist die Ausgestaltung der Sicherungseinrichtung mit lediglich zwei Sicherungselementen möglich.If the connecting projections are detachably connected to one another on horizontal connecting edge sections lying opposite one another in order to form the securing device, the configuration of the securing device with only two securing elements is possible.

Vorzugsweise weist die Sicherungseinrichtung zwei im Bereich der horizontalen Verbindungsrandabschnitte am Umfang der Stichlochstopfkanone angeordnete Bolzenverbindungen auf.The safety device preferably has two bolt connections arranged in the region of the horizontal connection edge sections on the circumference of the taphole tamping gun.

Wenn die Bolzenverbindungen jeweils zur kraftschlüssigen Verbindung einer am horizontalen Verbindungsrandabschnitt des Düsenteils und einer am horizontalen Verbindungsrandabschnitt der Materialkammer angeordneten Verbindungslasche dienen, sind die Bolzenverbindung auf möglichst einfache Art und Weise realisierbar.If the bolted connections are used for the non-positive connection of a connecting strap arranged on the horizontal connecting edge section of the nozzle part and a connecting strap arranged on the horizontal connecting edge section of the material chamber, the bolted connections can be realized in the simplest possible way.

Vorzugsweise weisen die Bolzenverbindungen jeweils einen vorzugsweise als Gewindebolzen ausgebildeten Bolzen auf, der mit einer zwischen dem Bolzen und dem Mundstück angeordneten, den Bolzen gegen äußere Einflüsse abschirmenden Schutzeinrichtung versehen ist, so dass die Funktion bzw. Handhabung der Bolzenverbindung nicht durch äußere Einflüsse, wie beispielsweise aus dem Abstichkanal stammenden Metall- oder Schlackespritzer, die gegebenenfalls zu entsprechenden Ablagerungen auf der Bolzenverbindung führen könnten, beeinträchtigt werden kann.Preferably, the bolted connections each have a bolt, preferably designed as a threaded bolt, which is provided with a protective device arranged between the bolt and the mouthpiece and shielding the bolt from external influences, so that the function or handling of the bolted connection is not affected by external influences, such as metal or slag spatter coming from the tapping channel, which could possibly lead to corresponding deposits on the bolt connection.

Besonders vorteilhaft ist es, wenn zur Ausbildung der Schutzeinrichtung zumindest jeweils eine Verbindungslasche der Bolzenverbindungen mit einem sich parallel zum Bolzen erstreckenden Schutzsteg versehen ist.It is particularly advantageous if, in order to form the protective device, at least one connecting strap of the bolted connections is provided with a protective web extending parallel to the bolt.

Nachfolgend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnung näher erläutert.A preferred embodiment of the invention is explained in more detail below with reference to the drawing.

Es zeigen:

Fig. 1
eine Stichlochstopfkanone mit einem zwischen einer Materialkammer und einem Mundstück angeordneten Düsenteil in isometrischer Darstellung;
Fig. 2
die in Fig. 1 dargestellte Stichlochstopfkanone mit einem vom Düsenteil entfernten Mundstück;
Fig. 3
eine Teilseitenansicht der in Fig. 1 dargestellten Stichlochstopfkanone;
Fig. 4
eine Längsschnittdarstellung der in Fig. 3 dargestellten Stichlochstopfkanone;
Fig. 5
eine isometrische Darstellung der Materialkammer mit einem am Unterteil der Materialkammer ausgebildeten axialen Verbindungsvorsprung;
Fig. 6
die in Fig. 5 dargestellte Materialkammer mit einem in einer Montageausgangsstellung oberhalb des Verbindungsvorsprungs angeordneten Düsenteil;
Fig. 7
das in Fig. 1 dargestellte Düsenteil mit dem über eine Scharniergelenkordnung angeschlossenen Mundstück;
Fig. 8
das in Fig. 7 dargestellte Mundstück in einer Montagephase;
Fig. 9
eine Seitenansicht des in Fig. 8 dargestellten Mundstücks;
Fig. 10
die in den Fign. 7 und 8 dargestellte Scharniergelenkanordnung mit einem um ein Scharniergelenk verschwenkten Mundstück;
Fig. 11
eine Unteransicht der in Fig.4 dargestellten Stichlochstopfkanone.
Show it:
1
an isometric representation of a taphole gun with a nozzle part arranged between a material chamber and a mouthpiece;
2
in the 1 taphole gun shown with a mouthpiece removed from the nozzle portion;
3
a partial side view of the in 1 illustrated taphole cannon;
4
a longitudinal section view of the in 3 illustrated taphole cannon;
figure 5
an isometric view of the material chamber with an axial connecting projection formed on the lower part of the material chamber;
6
in the figure 5 illustrated material chamber with a nozzle part arranged in an initial assembly position above the connecting projection;
7
this in 1 nozzle part shown with the mouthpiece connected via a hinge joint arrangement;
8
this in 7 illustrated mouthpiece in an assembly phase;
9
a side view of the in 8 illustrated mouthpiece;
10
the in the Figs. 7 and 8 shown hinge joint arrangement with a pivoted about a hinge joint mouthpiece;
11
a bottom view of the in Fig.4 shown taphole cannon.

Fig. 1 zeigt eine mit ihren wesentlichen Bestandteilen dargestellte Stichlochstopfkanone 20 mit einer - wie insbesondere aus der Darstellung gemäß Fig. 4 hervorgeht - als Hohlzylinder ausgebildeten Materialkammer 21, die zur Aufnahme einer Stopfmasse dient, welche über eine hier nicht näher dargestellte Einfüllöffnung in die Materialkammer 21 eingefüllt und mittels eines in der Materialkammer 21 geführten Kolbens 22 in der Materialkammer 21 verdichtet und aus einem über ein Düsenteil 23 mit der Materialkammer 21 in Verbindung stehendes Mundstück 24, das im Fall der vorliegenden Ausführungsform der Stichlochstopfkanone 20 unabhängig vom Düsenteil 23 ausgebildet ist, in ein hier nicht näher dargestelltes Stichloch einer Ofeneinrichtung ausgegeben werden kann. 1 shows a taphole gun 20, shown with its essential components, with a—as in particular from the illustration according to FIG 4 emerges - designed as a hollow cylinder material chamber 21, which serves to accommodate a stuffing compound, which is filled into the material chamber 21 via a filling opening not shown in detail here and compressed in the material chamber 21 by means of a piston 22 guided in the material chamber 21 and from a via a nozzle part 23 with the material chamber 21 in communication mouthpiece 24, which is formed independently of the nozzle part 23 in the case of the present embodiment of the taphole gun 20, can be output into a not shown here taphole of a furnace device.

Das Düsenteil 23 ermöglicht eine für den Übergang von der Materialkammer 21 auf das Mundstück 24 erforderliche Reduktion des Innendurchmessers der Stichlochstopfkanone 20 und ist hierzu kegelstumpfförmig, im vorliegenden Ausführungsbeispiel insbesondere schief kegelstumpfförmig ausgebildet. Wie insbesondere aufgrund der Darstellung in Fig. 4 nachvollziehbar ist, wirken im Betrieb der Stichlochstopfkanone 20 bei einer Kompression der in der Materialkammer 21 aufgenommenen Stopfmasse infolge der vom Kolben 22 auf die Stopfmasse übertragenen Kompressionskräfte entsprechend große axiale Kräfte auf eine zwischen der Materialkammer 21 und dem Düsenteil 23 ausgebildeten Verbindungseinrichtung 25, welche, wie Fig. 6 zeigt, zur Herstellung einer formschlüssigen Verbindung zwischen der Materialkammer 21 und dem Düsenteil 23 an einem axialen Verbindungsrand 26 einer Kammerwand 27 der Materialkammer 21 einen axialen Verbindungsvorsprung 28 und an einem axialen Verbindungsrand 54 einer Düsenwand 29 des Düsenteils 23 einen Verbindungsvorsprung 30 aufweist.The nozzle part 23 enables a reduction in the inner diameter of the taphole gun 20 required for the transition from the material chamber 21 to the mouthpiece 24 and is truncated for this purpose, in particular obliquely truncated in the present embodiment. As in particular due to the representation in 4 is understandable, during operation of the taphole tamping gun 20, when the tamping mass accommodated in the material chamber 21 is compressed, correspondingly large axial forces act on a connecting device 25 formed between the material chamber 21 and the nozzle part 23 as a result of the compression forces transmitted from the piston 22 to the tamping mass, which, like 6 1 shows an axial connecting projection 28 and for producing a form-fitting connection between the material chamber 21 and the nozzle part 23 on an axial connecting edge 26 of a chamber wall 27 of the material chamber 21 has a connecting projection 30 on an axial connecting edge 54 of a nozzle wall 29 of the nozzle part 23 .

Wie insbesondere aus einer Zusammenschau der Fign. 5 und 6 deutlich wird, ist der Verbindungsvorsprung 30 des Düsenteils 23 an einem Oberteil 31 des Düsenteils 23 ausgebildet und der Verbindungsvorsprung 28 der Materialkammer 21 ist an einem Unterteil 32 der Materialkammer 21 ausgebildet, so dass der Verbindungsvorsprung 30 des Düsenteils 23 auf dem an der Materialkammer 21 ausgebildeten Verbindungsvorsprung 28 aufliegt, wobei zwischen dem Verbindungsvorsprung 30 des Düsenteils 23 und einem Verbindungsrandabschnitt 33 an einem Oberteil 34 der Materialkammer 21 einerseits und dem Verbindungsvorsprung 28 der Materialkammer 21 und einem Verbindungsrandabschnitt 35 an einem Unterteil 36 des Düsenteils 23 andererseits jeweils ein radialer formschlüssiger Eingriff ausgebildet ist.How in particular from a synopsis of Figs. 5 and 6 becomes clear, the connecting projection 30 of the nozzle part 23 is formed on an upper part 31 of the nozzle part 23 and the connecting projection 28 of the material chamber 21 is formed on a lower part 32 of the material chamber 21, so that the connecting projection 30 of the nozzle part 23 rests on the one formed on the material chamber 21 Connecting projection 28 rests, a radial form-fitting engagement being formed between the connecting projection 30 of the nozzle part 23 and a connecting edge section 33 on an upper part 34 of the material chamber 21 on the one hand and the connecting projection 28 of the material chamber 21 and a connecting edge section 35 on a lower part 36 of the nozzle part 23 on the other hand .

Wie bei einem Vergleich der Fign. 6 und 2 deutlich wird, die das Düsenteil 23 zum einen in einer Relativanordnung unmittelbar vor Herstellung des formschlüssigen Eingriffs ( Fig. 6 ) und zum anderen in einer Relativanordnung unmittelbar nach Herstellung des formschlüssigen Eingriffs ( Fig. 2 ) zeigen, nachvollziehbar wird, ist das Düsenteil 23 nach Herstellung des formschlüssigen Eingriffs bereits durch Schwerkrafteinwirkung in der Verbindung zur Materialkammer 21 in seiner Relativposition gesichert. Um die in Fig. 2 dargestellte Relativanordnung auch bei Einwirkung von Kompressionskräften auf das Düsenteil 23 zu sichern, ist über den formschlüssigen Eingriff hinaus eine radial wirksame Sicherungseinrichtung 37 vorgesehen, die an einander gegenüberliegenden horizontalen Verbindungsrandabschnitten 38, 39 ( Fig. 6 ) jeweils eine Bolzenverbindung 40, 41 ( Fig. 1 )aufweisen, die mittels eines hier nicht näher dargestellten Gewindebolzens zwei einander gegenüberliegend an dem Verbindungsrandabschnitt 38 des Verbindungsvorsprungs 30 des Düsenteils 23 und am Verbindungsrandabschnitt 39 des Verbindungsvorsprungs 28 der Materialkammer 21 ausgebildete Verbindungslaschen 42 bzw. 43 miteinander verbinden.As with a comparison of Figs. 6 and 2 it becomes clear that the nozzle part 23 is on the one hand in a relative arrangement immediately before the production of the form-fitting engagement ( 6 ) and on the other hand in a relative arrangement immediately after the production of the form-fitting engagement ( 2 ) show, it is understandable that the nozzle part 23 is already secured in its relative position in the connection to the material chamber 21 by the effect of gravity after the positive engagement has been produced. To the in 2 To secure the relative arrangement shown, even when compression forces are acting on the nozzle part 23, a radially effective securing device 37 is provided in addition to the form-fitting engagement, which is attached to horizontal connecting edge sections 38, 39 ( 6 ) one bolt connection each 40, 41 ( 1 ) have , which by means of a threaded bolt, not shown here, two opposite each other on the connecting edge portion 38 of the connecting projection 30 of the nozzle part 23 and on the connecting edge portion 39 of the connecting projection 28 connect the material chamber 21 formed connecting tabs 42 and 43 with each other.

Durch die Bolzenverbindungen 40, 41 werden daher die Verbindungsvorsprünge 28, 30 in ihrer radialen Anordnung gesichert, so dass in der Stichlochstopfkanone 20 auftretende Kompressionskräfte nicht dazu führen können, dass der zwischen den Verbindungsvorsprüngen 28, 30 ausgebildete formschlüssige Eingriff, der zur Aufnahme des axialen Anteils der Kompressionskräfte dient, gelöst wird.The connecting projections 28, 30 are therefore secured in their radial arrangement by the bolt connections 40, 41, so that compression forces occurring in the taphole tamping gun 20 cannot lead to the form-fitting engagement formed between the connecting projections 28, 30, which is used to accommodate the axial portion which serves to compress forces is released.

Zur Ausbildung des formschlüssigen Eingriffs ist an einem Verbindungsrandabschnitt 44 am Verbindungsvorsprung 30 des Düsenteils 23 radial innen an der Düsenwand 29 ein Ringsegmentsteg 45 ( Fig. 4 ) ausgebildet, der in eine an einem Verbindungsrandabschnitt 46 am Oberteil 34 der Materialkammer 21 radial außen an der Kammerwand 27 ausgebildete Ringstegnut 47 ( Fig. 5 ) eingreift.To form the form-fitting engagement, a ring segment web 45 ( 4 ) is formed, which extends into an annular web groove 47 ( figure 5 ) intervenes.

Wie Fig. 4 zeigt, ist in einem Verbindungsrandabschnitt 48 am Unterteil 36 des Düsenteils 23 radial außen an der Düsenwand 29 ein Ringsegmentsteg 49 ausgebildet, der in eine an einem Verbindungsrandabschnitt 50 am Verbindungsvorsprung 28 der Materialkammer 21 radial innen an der Kammerwand 27 ausgebildete Ringsegmentnut 51 eingreift.How 4 shows, in a connecting edge section 48 on the lower part 36 of the nozzle part 23, a ring segment web 49 is formed radially on the outside on the nozzle wall 29, which engages in a ring segment groove 51 formed on a connecting edge section 50 on the connecting projection 28 of the material chamber 21, radially on the inside on the chamber wall 27.

Wie insbesondere aus der Darstellung in Fig. 5 ersichtlich, erstreckt sich die im Verbindungsvorsprung 28 der Materialkammer 21 ausgebildete radial innere Ringsegmentnut 51 über einen Umfangswinkel > 180°, derart, dass einander gegenüberliegende Nutenden 52, 53 der Ringsegmentnut 51 zur Ausbildung von vertikalen Führungen für an dem Verbindungsvorsprung 30 des Düsenteils ausgebildete Enden des Ringsegmentstegs 45, die sich entsprechend vertikal erstrecken, während der Herstellung des Eingriffs dienen können.As can be seen in particular from the illustration in figure 5 As can be seen, the radially inner annular segment groove 51 formed in the connecting projection 28 of the material chamber 21 extends over a circumferential angle > 180° in such a way that opposite groove ends 52, 53 of the annular segment groove 51 can be used to form vertical guides for the ends of the Ring segment web 45, which extend vertically accordingly, can serve during the production of the engagement.

Wie insbesondere aus der Fig. 3 ersichtlich, sind die Bolzenverbindungen 40, 41 so ausgestaltet, dass ein längs einer Bolzenachse 55 die Verbindungslaschen 42, 43 miteinander kraftschlüssig verbindender Bolzen, der vorzugsweise als Gewindebolzen 75 ausgebildet ist, durch eine Schutzeinrichtung 56, die aus vertikal an den Verbindungslaschen ausgebildeten Schutzstegen 57, 58 gebildet ist, die gleichzeitig eine biegesteife Ausbildung der Verbindungslaschen 42, 43 ermöglichen, zum Mundstück 24 hin gegen äußere Einflüsse geschützt ist.As in particular from the 3 seen, the bolt connections 40, 41 are designed so that a along a bolt axis 55, the connecting straps 42, 43 that connects the bolts non-positively to one another, which is preferably designed as a threaded bolt 75, through a protective device 56, which is formed from protective webs 57, 58 formed vertically on the connecting straps, which at the same time enable the connecting straps 42, 43 to be rigidly formed, to the mouthpiece 24 is protected against external influences.

Insbesondere zum Schutz vor einer von unterhalb der Stichlochstopfkanone 20 gegen die Stichlochstopfkanone 20 emittiere Wärmestrahlung ist am Unterteil 32 der Materialkammer 21 bzw. am Unterteil 36 des Düsenteils 23 eine Abschirmeinrichtung 76 angeordnet.A shielding device 76 is arranged on the lower part 32 of the material chamber 21 or on the lower part 36 of the nozzle part 23 , in particular to protect against thermal radiation emitted from below the taphole tamping gun 20 against the taphole tamping gun 20 .

Wie insbesondere der Figurenabfolge der Fign. 7 bis 10 zu entnehmen ist, ist im vorliegenden Fall das Mundstück 24 als eine unabhängig vom Düsenteil 23 ausgebildete Komponente ausgestaltet, wobei zur Verbindung des Mundstücks 24 mit dem Düsenteil 23 eine Scharniergelenkanordnung 59 vorgesehen ist, die zwei einander gegenüberliegend angeordnete Scharniergelenke 60, 61 aufweist, welche jeweils eine hier aus zwei parallel zueinander angeordneten Gelenklaschen 62, 63 gebildete Gelenklaschenanordnung 64 und eine im vorliegenden Fall lediglich eine Gelenklasche 65 aufweisende Gelenklaschenanordnung 66 des Düsenteils 23 aufweisen, die über einen Gelenkbolzen 67 miteinander verbunden sind.As in particular the sequence of figures Figs. 7 to 10 As can be seen, in the present case the mouthpiece 24 is designed as a component formed independently of the nozzle part 23, with a hinge joint arrangement 59 being provided for connecting the mouthpiece 24 to the nozzle part 23, which has two oppositely arranged hinge joints 60, 61, which each a joint plate arrangement 64 formed here from two joint plates 62, 63 arranged parallel to one another and in the present case only one joint plate 65 having joint plate arrangement 66 of the nozzle part 23, which are connected to one another via a joint pin 67.

Wie Fig. 10 zeigt, weist die am Mundstück 24 angeordnete Gelenklasche 65 einen in Richtung einer Gelenkachse 77 keilförmig ausgebildeten Laibungsabschnitt 68 eines Gelenkauges 69 auf, der eine zu einem Keilabschnitt 70 ( Fig. 9 ) des Gelenkbolzens 67 komplementäre Keilausbildung aufweist, derart, dass bei einer Anordnung des Gelenkbolzens 67 in den Scharniergelenken 60, 61 der Gelenkbolzen, wie in Fig. 7 dargestellt, die Gelenklaschenanordnung 64 des Düsenteils 63 mit der Gelenklasche 65 des Mundstücks 24 verbindet, derart, dass der Keilabschnitt 70 in dem Gelenkauge 69 der Gelenklasche 65 angeordnet und drehfest mit der Gelenklasche 65 verbunden ist.How 10 shows, the joint plate 65 arranged on the mouthpiece 24 has a reveal section 68 of a joint eye 69 which is wedge-shaped in the direction of a joint axis 77 and which forms a wedge section 70 ( 9 ) of the hinge pin 67 has a complementary wedge formation, such that when the hinge pin 67 is arranged in the hinge joints 60, 61, the hinge pin, as in 7 shown, the joint strap arrangement 64 of the nozzle part 63 connects to the joint strap 65 of the mouthpiece 24 in such a way that the wedge section 70 is arranged in the joint eye 69 of the joint strap 65 and is non-rotatably connected to the joint strap 65 .

In der in Fig. 7 dargestellten Konfiguration sind beide einander gegenüberliegend angeordnete Scharniergelenke 60, 61 zur Ausbildung der Gelenkachse 77 mit dem Gelenkbolzen 67 versehen, so dass das Mundstück 24 gegenüber dem Düsenteil 23 fixiert ist und gegebenenfalls mit einer Zustellbewegung der Stichlochstopfkanone 20 in das Stichloch eingeführt werden kann.in the in 7 In the configuration shown, both hinge joints 60, 61 arranged opposite one another are provided with the joint pin 67 to form the joint axis 77, so that the mouthpiece 24 is fixed in relation to the nozzle part 23 and, if necessary, can be inserted into the taphole with a feed movement of the taphole tamping gun 20.

Für den Fall, dass einer der beiden Gelenkbolzen 67 aus einem Scharniergelenk 60 oder 61 entfernt ist, kann beispielsweise zu Wartungszwecken ein einseitiges Aufschwenken des Mundstücks 24 um die durch den im Scharniergelenk 60 bzw. 61 verbliebenen Gelenkbolzen 67 gebildete Gelenkachse 77 erfolgen. Somit kann, wie in Fig. 11 dargestellt ist, ein Verschwenken des Mundstücks 24 um eine Gelenkachse 77 wahlweise in die eine oder andere Richtung erfolgen.If one of the two hinge pins 67 is removed from a hinge joint 60 or 61, the mouthpiece 24 can be swiveled open on one side about the hinge axis 77 formed by the hinge pin 67 remaining in the hinge joint 60 or 61, for example for maintenance purposes. Thus, as in 11 is shown, the mouthpiece 24 can be pivoted about a joint axis 77 either in one direction or the other.

Wie der Fig. 10 zu entnehmen ist, ist zwischen einander gegenüberliegenden axialen Verbindungsrändern 71, 72 des Düsenteils 23 bzw. des Mundstücks 24 eine Eingriffseinrichtung ausgebildet, die hier aus einem am Verbindungsrand 71 des Düsenteils 23 ausgebildeten Ringsteg 73 einerseits und einer an dem Verbindungsrand 72 des Mundstücks 24 ausgebildeten Ringnut 74 andererseits gebildet ist und eine radiale Abdichtung der durch die Scharniergelenkanordnung 59 gebildeten Verbindung zwischen dem Düsenteil 23 und dem Mundstück 24 ermöglicht.Again 10 As can be seen, an engagement device is formed between opposing axial connecting edges 71, 72 of the nozzle part 23 and the mouthpiece 24, which here consists of an annular web 73 formed on the connecting edge 71 of the nozzle part 23 on the one hand and an annular groove formed on the connecting edge 72 of the mouthpiece 24 74 on the other hand is formed and a radial sealing of the connection formed by the hinge joint arrangement 59 between the nozzle part 23 and the mouthpiece 24 is made possible.

Vorzugsweise weist der Ringsteg 73 einen kegelstumpfartigen Querschnitt auf, der komplementär zum Querschnitt der Ringnut 74 ausgebildet ist. Durch den zwischen den Laibungsabschnitten 68 der Gelenklaschen 65 und den Keilabschnitten 70 der Gelenkbolzen 67 ermöglichten Keileffekt kann durch das Einführen der Gelenkbolzen 67 in die Gelenkaugen 69 der Gelenklaschen 65 eine zwischen dem Düsenteil 23 und dem Mundstück 24 wirkende axiale Dichtkraft erzeugt werden, mit der eine wirksam abdichtende Relativanordnung zwischen dem Mundstück 24 und dem Düsenteil 23 erzielbar ist.The annular web 73 preferably has a truncated cone-shaped cross section which is designed to be complementary to the cross section of the annular groove 74 . Due to the wedge effect made possible between the reveal sections 68 of the joint straps 65 and the wedge sections 70 of the joint bolts 67, an axial sealing force acting between the nozzle part 23 and the mouthpiece 24 can be generated by inserting the joint bolts 67 into the joint eyes 69 of the joint straps 65, with which a effective sealing relative arrangement between the mouthpiece 24 and the nozzle part 23 can be achieved.

Claims (9)

  1. A tap hole plug gun (20) comprising a material chamber (21) for receiving a plugging compound, a mouthpiece (24) for being introduced into a tap hole, and a nozzle part (23) tapered in the direction of the mouthpiece (24) and connected to the material chamber by means of an unlockable connection device (25),
    characterized in that
    for realizing the connection device (25), the material chamber (21) and the nozzle part (23) have complementary axial connecting projections (28, 30) on two opposite axial connecting edges (26, 54) of a chamber wall (27) of the material chamber (21) and of a nozzle wall (29) of the nozzle part (23) in such a manner that the connecting projection (30) formed on an upper part (31) of the nozzle part (23) is disposed on the connecting projection (28) formed on a lower part (32) of the material chamber (21), a form-fitting radial engagement being established between the connecting projection (30) of the nozzle part (23) and the upper part (34) of the material chamber (21) and/or between the connecting projection (28) of the material chamber (21) and the lower part (36) of the nozzle part (23), said form-fitting radial engagement being secured in a force-fitting manner by means of a radially acting securing device (37).
  2. The tap hole plug gun according to claim 1,
    characterized in that
    for realizing the form-fitting engagement, a ring segment web (45) is formed on a connecting edge portion (44) on the connecting projection (30) of the nozzle part (23) on the radial interior of the nozzle wall (29), said ring segment web (45) engaging into a ring segment groove (47) formed on a connecting edge portion (46) on the upper part (34) of the material chamber (21) on the radial exterior of the chamber wall (27), and/or a ring segment web (49) is formed on a connecting edge portion (48) on the lower part (36) of the nozzle part (23) on the radial exterior of the nozzle wall (29), said ring segment web (49) engaging into a ring segment groove (51) formed on a connecting edge portion (50) on the connecting projection (28) of the material chamber (21) on the radial interior of the chamber wall (27).
  3. The tap hole plug gun according to claim 1 or 2,
    characterized in that
    each connecting edge portion (44, 48) of the nozzle part (23) is provided with a ring segment web (45, 49) extending across essentially the entire length of the connecting edge portion (44, 48), and each connecting edge portion (33, 50) of the material chamber (21) is provided with a ring segment groove (47, 51) extending across essentially the entire length of the connecting edge portion (33, 50).
  4. The tap hole plug gun according to any one of the preceding claims,
    characterized in that
    the radially inner ring segment groove (51) formed in the connecting projection (28) of the material chamber (21) extends across a circumferential angle of > 180° in such a manner that opposite ring segment groove ends (52, 53) extend in the vertical direction so as to form vertical guides for ends of the ring segment web (45) formed on the connecting projection (30) of the nozzle part (23).
  5. The tap hole plug gun according to any one of the preceding claims,
    characterized in that
    for realizing the securing device (37), the connecting projections (28, 30) are detachably connected to each other at opposite horizontal connecting edge portions (38, 39).
  6. The tap hole plug gun according to claim 5,
    characterized in that
    the securing device (37) has two bolt connections (40, 41) disposed on the circumference of the tap hole plug gun (20) in the area of the horizontal connecting edge portions (38, 39).
  7. The tap hole plug gun according to claim 6,
    characterized in that
    the bolt connections (40, 41) each serve to connect connecting tabs (42, 43) disposed on a horizontal connecting edge portion (38) of the nozzle part (23) and on a horizontal connecting edge portion (39) of the material chamber (21) in a force-fitting manner.
  8. The tap hole plug gun according to claim 6 or 7,
    characterized in that
    each bolt connection (40, 41) has a bolt preferably realized as a threaded bolt (75) and provided with a protective device (56) disposed between the bolt and the mouthpiece (24) and protecting the bolt against external influences.
  9. The tap hole plug gun according to claim 8,
    characterized in that
    for realizing the protective device (56), at least one connecting tab (42, 43) of each bolt connection (40, 41) is provided with a protective web (57, 58) extending parallel to the bolt.
EP19711076.0A 2019-03-13 2019-03-13 Taphole plugging gun Active EP3938547B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/056261 WO2020182303A1 (en) 2019-03-13 2019-03-13 Taphole plugging gun

Publications (2)

Publication Number Publication Date
EP3938547A1 EP3938547A1 (en) 2022-01-19
EP3938547B1 true EP3938547B1 (en) 2023-02-15

Family

ID=65767027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19711076.0A Active EP3938547B1 (en) 2019-03-13 2019-03-13 Taphole plugging gun

Country Status (10)

Country Link
US (1) US20220178615A1 (en)
EP (1) EP3938547B1 (en)
JP (1) JP7166469B2 (en)
KR (1) KR102556111B1 (en)
CN (1) CN113574185B (en)
BR (1) BR112021017123A2 (en)
CA (1) CA3129886C (en)
TW (1) TWI766246B (en)
UA (1) UA126844C2 (en)
WO (1) WO2020182303A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7450326B2 (en) 2017-07-19 2024-03-15 大阪化成株式会社 Functional fiber and its manufacturing method
CA3130480C (en) * 2019-03-13 2023-09-19 Tmt Tapping Measuring Technology Sarl Tap hole plug gun

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Also Published As

Publication number Publication date
KR20210126041A (en) 2021-10-19
EP3938547A1 (en) 2022-01-19
JP7166469B2 (en) 2022-11-07
BR112021017123A2 (en) 2021-11-03
CA3129886C (en) 2024-01-16
CN113574185A (en) 2021-10-29
UA126844C2 (en) 2023-02-08
WO2020182303A1 (en) 2020-09-17
CN113574185B (en) 2022-10-25
TW202040076A (en) 2020-11-01
CA3129886A1 (en) 2020-09-17
US20220178615A1 (en) 2022-06-09
TWI766246B (en) 2022-06-01
KR102556111B1 (en) 2023-07-14
JP2022522471A (en) 2022-04-19

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