EP0420066A1 - Firing furnace - Google Patents

Firing furnace Download PDF

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Publication number
EP0420066A1
EP0420066A1 EP90118203A EP90118203A EP0420066A1 EP 0420066 A1 EP0420066 A1 EP 0420066A1 EP 90118203 A EP90118203 A EP 90118203A EP 90118203 A EP90118203 A EP 90118203A EP 0420066 A1 EP0420066 A1 EP 0420066A1
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EP
European Patent Office
Prior art keywords
burner
plate
tie rod
block
burner block
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.)
Granted
Application number
EP90118203A
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German (de)
French (fr)
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EP0420066B1 (en
Inventor
Peter Schatschneider
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Bloom Engineering Europa GmbH
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Bloom Engineering Europa GmbH
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Publication date
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Priority to AT90118203T priority Critical patent/ATE98359T1/en
Publication of EP0420066A1 publication Critical patent/EP0420066A1/en
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Publication of EP0420066B1 publication Critical patent/EP0420066B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/04—Supports for linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F23M5/025—Casings; Linings; Walls characterised by the shape of the bricks or blocks used specially adapted for burner openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings

Definitions

  • the innovation relates to a kiln with a burner block to be fixed in particular in the furnace ceiling, which surrounds the flame of the burner, and at least one anchor anchoring the burner block to a burner plate.
  • a burner block has a central, conically widening opening from which the flame of the burner emerges.
  • the face of the burner block is aligned with the inside surface of the furnace wall or ceiling.
  • Such a burner block is generally angular or cylindrical on the outside. With its backside, this burner stone lies against a burner plate.
  • These usually extend through several anchors reaching into a blind hole in the burner block, on the screw end of which a nut is screwed, which lies on the outside of the burner plate and thus presses the burner block against the furnace wall. It has been shown that the lifespan of the burner blocks so fastened does not always meet expectations because front parts of the burner block are flaking off.
  • the innovation is based on the task of developing the kiln so that the life of the burner is increased.
  • the formation of the burner stone in connection with the fastening anchor not only leads to a firm anchoring which holds the burner stone from the outside, but also to holding the stone in a comparatively cool zone and to positive cohesion.
  • the inclination of the contact surface of the armature on the burner plate ensures that when the nut or the like screwed onto the screw thread of the armature bolt is tightened, the armature is tilted slightly in the radial direction to the burner axis and is thereby pushed against the burner block .
  • a burner block 1 consisting of four quadrants of the same size is fastened to a burner plate 2 in a furnace ceiling by means of clamping tie rods 3, which are provided with cross arms 4 and are designed as profile arms on a triangular main frame 6.
  • the quadrants are tightened by means of a fastening bolt 8 which extends through a bore in the burner plate 2 and onto which a nut, not shown, is screwed, generally with the interposition of a washer.
  • the top of the armature which faces the underside of the burner plate 2, is slightly inclined with respect to the axis of the bolt 8 to the burner axis 10, so that when the nut is tightened, the cross arms 4 are pivoted together with the frame 6 to the burner axis 10 and thereby the Push burner block quadrant 1 not only towards the burner axis but also towards the burner plate or furnace ceiling.
  • the transverse arms 4 reach under corresponding recesses 11 on the edge of the burner quarl, which also have corresponding recesses 12 for receiving the frame 6 of the armature, as can be seen in FIGS. 3 and 4.
  • recesses 13 are provided on the top of the burner block, into which plates 14 can also be inserted, which enlarge the contact surface of the armature 3.
  • the anchors can be used with their Inclined surfaces 15 against corresponding inclined surfaces 17 of the burner quartz quadrants are also brought into contact, although it is generally sufficient if the cross arms 4, which form a unitary casting with the frame 6 in the embodiment according to FIG. 2, reach under the burner stones.
  • the laterally projecting transverse arms 4 are designed as round bars, while below the screw bolt 8 a transverse plate 20 is provided, with which the screw bolt is offset axially to the burner axis relative to the frame 21, which extends to the transverse arms 4 is.
  • the frame 21 is designed as a triangular metal plate, as can be seen in FIG. 7, on the underside of which a round bar, which forms the two transverse arms 4, is welded.
  • the contact surface of the plate 20 is in turn inclined with respect to the axis of the bolt 8, which runs parallel to the burner axis, so that the clamping and clamping effect which can be seen in FIG. 1 is achieved when the nut is tightened.
  • FIGS. 8 to 9 A simple embodiment of the tie rod, which exhibits a lower radial clamping effect, results from FIGS. 8 to 9 in two side views.
  • An elongated bolt 25 has at its lower end only a welded-on cross bar 26, which forms the two cross arms 4.
  • the burner quartz quadrants can form a stepped joint laterally, in that the lower half protrudes on one side and springs back on the other side, so that there is no radial continuous joint but a stepped joint.
  • a knob 16 or the like can also be provided on the radially outer side, that is to say in FIG. 1 approximately below reference number 2, which likewise leads to that when tightening the clamping nut the anchor is pivoted clockwise in the illustration in Fig. 1.
  • the burner block can also be fastened to another suitable construction part which is provided for receiving the burner block.
  • a fixing pressure plate 14 which engages in the recess 13. It lies flat under an existing old burner plate in the recess 13 of the burner stone surface.
  • This fixing pressure plate 14 has the advantage that not too much tension is exerted on the circumferential retaining collar 11 of the burner block and it fixes the burner block, which consists of, for example, four segment parts (quadrants), against opening to the outside.
  • a generous recess in the upper outer burner block area ensures good tightness between the furnace roof and the burner block.
  • a fixing pressure plate 30 with a set screw 31 laterally offset with respect to the screw bolt according to FIG. 10 allows a split fuel brick 1 with four or more segments to be screwed to an existing burner plate 2 as an assembled unit after manufacture, for which purpose the nuts 32 are used.
  • the burner stones reach into a corresponding opening in the furnace ceiling, which is insulated with refractory stone on the underside.
  • the end face of the burner blocks lies approximately in the level of the lower surface of the refractory blocks.
  • the clamping tie rod 3 and the fixing pressure plate 14 are expediently made of cast chrome nickel.
  • Both the contact surfaces of the anchors and in particular the transverse arms 4 or the like on the burner quarl or its quadrant as well as the contact surfaces of the burner quartz or its quadrant on the burner plate should each be somewhat curved so that when the clamping tie rods are tightened at these contact points the radial bracing no avoidable bending stresses occur and the parts can roll on each other. Also, avoidable bending stresses should not be introduced into the fastening bolts 8 and the nuts 30 should be supported via spherical or spherically curved washers or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Drying Of Solid Materials (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

In a firing furnace with a burner port (1) which is to be fastened to a furnace wall, in particular a furnace roof, and which surrounds the flame of the burner, and at least one anchor (3) anchoring the burner port, it is envisaged that the anchor, on the outside of the burner port (1), on the latter, engages with transverse arms (4) under an outer recess (11) or a circumferential holding collar, and on fastening is preferably tilted towards the burner axis (10), in order to pretension a one-part or multi-part burner port against the furnace wall or burner plate (2) and relative to the burner axis. <IMAGE>

Description

Die Neuerung betrifft einen Brennofen mit einem insbesondere in der Ofendecke zu befestigenden Brennerstein, der die Flamme des Brenners umschließt, und wenigstens einem den Brennerstein an einer Brennerplatte verankernden Anker. Ein solcher Brenner­stein hat eine mittige sich nach außen konisch erweiternde Öffnung, aus der die Flamme des Brenners austritt. Die Stirn­seite des Brennersteins fluchtet etwa mit der Innenfläche der Ofenwand oder -decke. Auf der Außenseite ist ein solcher Brennerstein im allgemeinen eckig oder zylindrisch ausgebildet. Mit seiner rückwlirtigen Seite liegt dieser Brennerstein an einer Brennerplatte an. Durch diese reichen meist mehrere im Brennerstein in ein Sackloch reichende Anker, auf deren Schraub­ende eine Mutter aufgeschraubt ist, die auf der Außenseite der Brennerplatte anliegt und so den Brennerstein gegen die Ofen­wand drängt. Es hat sich gezeigt, daß die Lebensdauer der so befestigten Brennersteine nicht immer den Erwartungen ent­spricht, weil vordere Teile des Brennersteins abplatzen.The innovation relates to a kiln with a burner block to be fixed in particular in the furnace ceiling, which surrounds the flame of the burner, and at least one anchor anchoring the burner block to a burner plate. Such a burner block has a central, conically widening opening from which the flame of the burner emerges. The face of the burner block is aligned with the inside surface of the furnace wall or ceiling. Such a burner block is generally angular or cylindrical on the outside. With its backside, this burner stone lies against a burner plate. These usually extend through several anchors reaching into a blind hole in the burner block, on the screw end of which a nut is screwed, which lies on the outside of the burner plate and thus presses the burner block against the furnace wall. It has been shown that the lifespan of the burner blocks so fastened does not always meet expectations because front parts of the burner block are flaking off.

Der Neuerung liegt die Aufgabe zugrunde, den Brennofen dahinge­hend fortzuentwickeln, daß die Lebensdauer des Brennersteins erhöht ist.The innovation is based on the task of developing the kiln so that the life of the burner is increased.

Eine diese Aufgabe lösende Ausbildung des Brennofens ist im Schutzanspruch 1 gekennzeichnet. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.A design of the kiln that solves this problem is characterized in the protection claim 1. Advantageous refinements result from the subclaims.

Die Ausbildung des Brennersteins in Verbindung mit dem Befesti­gungsanker führt nicht nur zu einer festen, den Brennerstein von außen fassenden Verankerung sondern auch zu einem Halten des Steins in einer vergleichsweise kühlen Zone und zu einem positiven Zusammenhalt. Insbesondere bei der Ausbildung nach den Unteransprüchen wird durch die Neigung der Anlagefläche des Ankers an der Brennerplatte erreicht, daß beim Festziehen der auf das Schraubgewinde des Ankerbolzens aufgeschraubten Mutter od. dgl. der Anker in Radialrichtung zur Brennerachse leicht gekippt und dadurch gegen den Brennerstein gedrängt wird. Dies gilt auch für die Ausführungsform mit geteiltem Brennerstein, insbesondere in vier Quadranten, bei der der Anker jeweils in der Fuge angeordnet ist, so daß seine nach beiden Seiten abstehenden Arme in entsprechende Aussparungen der Brenner­steinteile reichen, die vier Brennersteinquadranten jedoch fest gegeneinander drängen, so daß diese auch ohne Vermauerung sich wie ein einzelner Stein verhalten. Diese Ausbildung hat darüber­hinaus den Vorteil, daß bei Verschleiß nur eines der Quadranten dieser ohne weiteres einzeln ausgewechselt werden kann, was bei der bisherigen Befestigungsart nicht möglich war.The formation of the burner stone in connection with the fastening anchor not only leads to a firm anchoring which holds the burner stone from the outside, but also to holding the stone in a comparatively cool zone and to positive cohesion. In particular, in the training according to the subclaims, the inclination of the contact surface of the armature on the burner plate ensures that when the nut or the like screwed onto the screw thread of the armature bolt is tightened, the armature is tilted slightly in the radial direction to the burner axis and is thereby pushed against the burner block . This also applies to the embodiment with a split burner, in particular in four quadrants, in which the anchor is arranged in the joint, so that its arms protruding on both sides extend into corresponding recesses in the burner parts, but the four burner quadrants firmly press against each other, so that they behave like a single stone even without bricking. This training also has the advantage that only one of the quadrants can be easily replaced individually when worn, which was not possible with the previous type of attachment.

Ausführungsbeispiele der Neuerung sind anhand einer Zeichnung näher erläutert. Es zeigt:

  • Fig. 1 einen Teillängsschnitt durch einen Brennerstein mit einem Klemm-Zuganker,
  • Fig. 2 einen ähnlichen Klemm-Zuganker wie in Fig. 1,
  • Fig. 3 eine perspektivische Ansicht der Randausbildung eines Brennersteinquadranten im Bereich des Eingriffs des Klemm-Zugankers,
  • Fig. 4 eine Draufsicht auf eine Trennfuge zwischen zwei Brennersteinquadranten,
  • Fig. 5 eine Stirnansicht des Klemm-Zugankers nach Fig. 1,
  • Fig. 6 eine Draufsicht auf den Klemm-Zuganker nach Fig. 5,
  • Fig. 7 eine Seitenansicht des Klemm-Zugankers nach Fig. 5 und 6,
  • Fig. 8 eine vereinfachte Ausführungsform eines Zugankers,
  • Fig. 9 eine Seitenansicht des Zugankers nach Fig. 8, und
  • Fig. 10 eine Seitenansicht eines Zugankers mit einer Fixierdruckplatte.
Embodiments of the innovation are explained in more detail with reference to a drawing. It shows:
  • 1 is a partial longitudinal section through a burner block with a clamping tie rod,
  • 2 shows a similar tie rod as in FIG. 1,
  • 3 shows a perspective view of the edge formation of a burner quartz quadrant in the region of the engagement of the clamping tie rod,
  • 4 is a plan view of a parting line between two burner quartz quadrants,
  • 5 is an end view of the clamp tie rod of FIG. 1,
  • 6 is a plan view of the clamp tie rod of FIG. 5,
  • 7 is a side view of the clamping tie rod according to FIGS. 5 and 6,
  • 8 shows a simplified embodiment of a tie rod,
  • Fig. 9 is a side view of the tie rod of Fig. 8, and
  • Fig. 10 is a side view of a tie rod with a fixing pressure plate.

Ein Brennerstein 1 aus vier gleich großen Quadranten ist an einer Brennerplatte 2 in einer Ofendecke mittels Klemm-Zugan­kern 3 befestigt, welche mit Querarmen 4 versehen und an einem dreieckförmigen Hauptrahmen 6 als Profilarme ausgebildet sind. Die Quadranten werden mittels eines durch eine Bohrung in der Brennerplatte 2 reichenden Befestigungsbolzens 8, auf den eine nicht dargestellte Mutter, im allgemeinen unter Zwischenlage einer Scheibe geschraubt ist, festgezogen. Die Oberseite des Ankers, die der Unterseite der Brennerplatte 2 zugewandt ist, ist gegenüber der Achse des Bolzens 8 zur Brennerachse 10 etwas geneigt, so daß beim Anziehen der Mutter die Querarme 4 zusam­men mit dem Rahmen 6 zur Brennerachse 10 hin geschwenkt werden und dadurch die Brennersteinquadranten 1 nicht nur zur Brenner­achse sondern auch zur Brennerplatte bzw. Ofendecke hin drän­gen. Dazu greifen die Querarme 4 unter entsprechende Aussparun­gen 11 am Rande des Brennerstein-Quadranten, die im übrigen zur Aufnahme des Rahmens 6 des Ankers ebenfalls entsprechende Aus­sparungen 12, wie sich dies aus den Fig. 3 und 4 ergibt, auf­weisen. Außerdem sind auf der Oberseite des Brennersteins 1 Aussparungen 13 vorgesehen, in die ebenfalls Platten 14 einge­legt werden können, welche die Anlagefläche des Ankers 3 ver­größern. Unterhalb dieser Platten können die Anker mit ihrer Schrägfäiche 15 gegen entsprechende Schrägflächen 17 der Brenner­steinquadranten ebenfalls zur Anlage gebracht werden, obwohl es im allgemeinen ausreicht, wenn die Querarme 4, die bei der Ausführungsform nach Fig. 2 mit dem Rahmen 6 ein einheitliches Gußteil bilden, unter die Brennersteine greifen. Bei der Aus­führungsform des als Schweißkonstruktion ausgebildeten Klemm­Zugankers 3 sind die seitlich abstehenden Querarme 4 als Rund­eisen ausgebildet, während unterhalb des Schraubbolzens 8 eine Querplatte 20 vorgesehen ist, mit welcher der Schraubbolzen gegenüber dem Rahmen 21, der zu den Querarmen 4 reicht, axial zur Brennerachse versetzt ist. Der Rahmen 21 ist als dreiecks­förmige Metallplatte ausgebildet, wie dies Fig. 7 entnehmbar ist, an dessen Unterseite ein Rundstab, der die beiden Querarme 4 bildet, angeschweißt ist. Die Anlagefläche der Platte 20 ist wiederum gegenüber der Achse des Bolzens 8, welche parallel zur Brennerachse verläuft, geneigt, so daß die aus Fig. 1 erkennbare Spann- und Klemmwirkung beim Festschrauben der Mutter erzielt wird.A burner block 1 consisting of four quadrants of the same size is fastened to a burner plate 2 in a furnace ceiling by means of clamping tie rods 3, which are provided with cross arms 4 and are designed as profile arms on a triangular main frame 6. The quadrants are tightened by means of a fastening bolt 8 which extends through a bore in the burner plate 2 and onto which a nut, not shown, is screwed, generally with the interposition of a washer. The top of the armature, which faces the underside of the burner plate 2, is slightly inclined with respect to the axis of the bolt 8 to the burner axis 10, so that when the nut is tightened, the cross arms 4 are pivoted together with the frame 6 to the burner axis 10 and thereby the Push burner block quadrant 1 not only towards the burner axis but also towards the burner plate or furnace ceiling. For this purpose, the transverse arms 4 reach under corresponding recesses 11 on the edge of the burner quarl, which also have corresponding recesses 12 for receiving the frame 6 of the armature, as can be seen in FIGS. 3 and 4. In addition, recesses 13 are provided on the top of the burner block, into which plates 14 can also be inserted, which enlarge the contact surface of the armature 3. Below these plates, the anchors can be used with their Inclined surfaces 15 against corresponding inclined surfaces 17 of the burner quartz quadrants are also brought into contact, although it is generally sufficient if the cross arms 4, which form a unitary casting with the frame 6 in the embodiment according to FIG. 2, reach under the burner stones. In the embodiment of the clamping tie rod 3 designed as a welded construction, the laterally projecting transverse arms 4 are designed as round bars, while below the screw bolt 8 a transverse plate 20 is provided, with which the screw bolt is offset axially to the burner axis relative to the frame 21, which extends to the transverse arms 4 is. The frame 21 is designed as a triangular metal plate, as can be seen in FIG. 7, on the underside of which a round bar, which forms the two transverse arms 4, is welded. The contact surface of the plate 20 is in turn inclined with respect to the axis of the bolt 8, which runs parallel to the burner axis, so that the clamping and clamping effect which can be seen in FIG. 1 is achieved when the nut is tightened.

Eine einfache, eine geringere radiale Klemmwirkung entfaltende Ausführungsform des Zugankers ergibt sich aus den Fig. 8 bis 9 in zwei Seitenansichten. Ein verlängerter Bolzen 25 weist an seinem unteren Ende lediglich einen angeschweißten Querstab 26 auf, welcher die beiden Querarme 4 bildet.A simple embodiment of the tie rod, which exhibits a lower radial clamping effect, results from FIGS. 8 to 9 in two side views. An elongated bolt 25 has at its lower end only a welded-on cross bar 26, which forms the two cross arms 4.

Die Brennersteinquadranten können seitlich eine abgesetzte Fuge bilden, indem jeweils die untere Hälfte auf der einen Seite vorsteht und auf der anderen Seite zurückspringt, so daß sich keine radiale durchgehende Fuge sondern eine gestufte Fuge ergibt.The burner quartz quadrants can form a stepped joint laterally, in that the lower half protrudes on one side and springs back on the other side, so that there is no radial continuous joint but a stepped joint.

Um die Verspannung des Ankers gegen die Quadranten sicherzu­stellen, kann alternativ zu einer Abschrägung der oberen Fläche auch auf der radial äußeren Seite, also in Fig. 1 etwa unterhalb des Bezugszeichens 2, ein Noppen 16 oder dgl. vorgesehen sein, der ebenfalls dazu führt, daß beim Festziehen der Spannmutter der Anker bei der Darstellung in Fig. 1 im Uhrzeigersinn geschwenkt wird.In order to ensure the bracing of the armature against the quadrants, as an alternative to a beveling of the upper surface, a knob 16 or the like can also be provided on the radially outer side, that is to say in FIG. 1 approximately below reference number 2, which likewise leads to that when tightening the clamping nut the anchor is pivoted clockwise in the illustration in Fig. 1.

Statt der Befestigung an der Brennerplatte 2 kann der Brenner­stein auch an einem anderen geeigneten Konstruktionsteil befestigt sein, die für die Aufnahme des Brennersteins vorge­sehen ist. Auch in diesem Fall ist es sinnvoll, eine Fixier­druckplatte 14 vorzusehen, die in die Aussparung 13 eingreift. Sie liegt plan unter einer gegebenenfalls vorhandenen alten Brennerplatte in der Aussparung 13 der Brennersteinoberfläche. Diese Fixierdruckplatte 14 hat den Vorteil, daß nicht zu großer Zug auf den umlaufenden Haltekragen 11 des Brennersteins ausge­übt wird und sie den aus beispielsweise vier Segmentteilen (Quadranten) bestehenden Brennerstein gegen ein Aufgehen nach außen fixiert. Durch eine großzügige Aussparung im oberen äußeren Brennersteinbereich ist eine gute Dichtigkeit zwischen Ofendecke und Brennerstein zu erzielen.Instead of being fastened to the burner plate 2, the burner block can also be fastened to another suitable construction part which is provided for receiving the burner block. In this case too, it makes sense to provide a fixing pressure plate 14 which engages in the recess 13. It lies flat under an existing old burner plate in the recess 13 of the burner stone surface. This fixing pressure plate 14 has the advantage that not too much tension is exerted on the circumferential retaining collar 11 of the burner block and it fixes the burner block, which consists of, for example, four segment parts (quadrants), against opening to the outside. A generous recess in the upper outer burner block area ensures good tightness between the furnace roof and the burner block.

Eine Fixierdruckplatte 30 mit gegenüber dem Schraubbolzen seitlich versetztem Stellgewindestift 31 nach Fig. 10 erlaubt einen geteilten Brennstein 1 mit vier oder mehr Segmenten nach Fertigung als zusammengebaute Einheit an eine vorhandene Brennerplatte 2 anzuschrauben, wozu die Muttern 32 dienen. Die Brennersteine reichen in eine entsprechende Öffnung in der Ofendecke, die auf der Unterseite mit Feuerfeststein isoliert ist. Die Stirnseite der Brennersteine liegt etwa in der Ebene der Unterfläche der Feuerfeststeine.A fixing pressure plate 30 with a set screw 31 laterally offset with respect to the screw bolt according to FIG. 10 allows a split fuel brick 1 with four or more segments to be screwed to an existing burner plate 2 as an assembled unit after manufacture, for which purpose the nuts 32 are used. The burner stones reach into a corresponding opening in the furnace ceiling, which is insulated with refractory stone on the underside. The end face of the burner blocks lies approximately in the level of the lower surface of the refractory blocks.

Der Klemm-Zuganker 3 und die Fixierdruckplatte 14 werden zweckmäßig aus Chrom-Nickel-Guß gefertigt.The clamping tie rod 3 and the fixing pressure plate 14 are expediently made of cast chrome nickel.

Sowohl die Anlageflächen der Anker und insbesondere der Quer­arme 4 oder dergl. am Brennerstein bzw. dessen Quadranten als auch die Anlageflächen des Brennersteins bzw. dessen Quadranten an der Brennerplatte sollten jeweils etwas gewölbt sein, so daß beim Anziehen der Klemm-Zuganker an diesen Anlagestellen wegen des radialen Verspannens keine vermeidbaren Biegespannungen auftreten und sich die Teile aufeinander abwälzen können. Auch sollten keine vermeidbaren Biegespannungen in die Befestigungs­bolzen 8 eingeleitet werdend und dazu die Abstützung der Muttern 30 über ballige oder kugelförmig gewölbte Unterlagscheiben oder dergl. erfolgen.Both the contact surfaces of the anchors and in particular the transverse arms 4 or the like on the burner quarl or its quadrant as well as the contact surfaces of the burner quartz or its quadrant on the burner plate should each be somewhat curved so that when the clamping tie rods are tightened at these contact points the radial bracing no avoidable bending stresses occur and the parts can roll on each other. Also, avoidable bending stresses should not be introduced into the fastening bolts 8 and the nuts 30 should be supported via spherical or spherically curved washers or the like.

Claims (6)

1. Brennofen mit einem in einer Ofenwand, insbesondere in einer Ofendecke, vorzusehenden, die Flamme des Brenners um­schließenden Brennerstein und wenigstens einem den Brennerstein an einer Brennerplatte verankernden Schraubanker, auf dessen durch die Brennerplatte (2) reichendes Ende eine Befestigungs­mutter (32) oder dergl. aufgeschraubt ist,
dadurch gekennzeichnet,
daß jeder Schraubanker als Klemm-Zuganker (3) mit einem Befestigungsbolzen (8) ausgebildet ist und mit einem Querarm (4) in eine Aussparung (11) auf der Außenseite des Brenner­steins (1) eingreift.1. Kiln with a burner block to be provided in a furnace wall, in particular in a furnace ceiling, surrounding the flame of the burner and at least one screw anchor anchoring the burner block to a burner plate, on the end of which extends through the burner plate (2), a fastening nut (32) or the like is screwed on,
characterized by
that each screw anchor is designed as a clamping tie rod (3) with a fastening bolt (8) and engages with a cross arm (4) in a recess (11) on the outside of the burner block (1). 2. Brennofen nach Anspruch 1,
dadurch gekennzeichnet,
daß jeder Klemm-Zuganker (3) ein radial vom Brennerstein (1) weggerichtetes, an der Brennerplatte (2) oder einer Zwischen­platte (14) anliegendes Querteil (20) aufweist, dessen Oberseite gegenüber der Brennerachse (10) derart geneigt ist, daß beim Festziehen des Zugankers das Querteil (20) zur Brennerachse (10) und gegen den Brennerstein gedrängt wird.2. Kiln according to claim 1,
characterized by
that each clamping tie rod (3) has a radially away from the burner block (1), on the burner plate (2) or an intermediate plate (14) abutting cross member (20), the top of which is inclined relative to the burner axis (10) such that when Tightening the tie rod, the cross member (20) to the burner axis (10) and is pushed against the burner block. 3. Brennofen nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Brennerstein (1) radial in zwei oder mehr, vorzugsweise vier gleiche Teile unterteilt ist und daß der Klemm-Zuganker (3) im Bereich der Trennfuge verläuft und zwei Querarme (4) aufweist, von denen jeweils einer das benachbarte Brenner­steinteil untergreift und zur Brennerachse (10) hin drückt.3. Kiln according to claim 1 or 2,
characterized by
that the burner block (1) is divided radially into two or more, preferably four identical parts, and that the clamping tie rod (3) runs in the region of the parting line and has two transverse arms (4), one of which engages under the adjacent burner block part and for Presses the burner axis (10). 4. Brennofen nach Anspruch 2,
dadurch gekennzeichnet,
daß jeder Klemm-Zuganker (3) ein radial vom Brennerstein (1) weggerichtetes, insbesondere an der Brennerplatte (2) anliegen­des plattenförmigen Querteil (20) hat, das in Bezug auf die Brennerachse (10) radial außerhalb des Befestigungsbolzens (8) einen vorstehenden Noppen (16) oder Vorsprung, eine Stell­schraube oder einen Gewindestift aufweist.4. Kiln according to claim 2,
characterized by
that each clamping tie rod (3) has a radially away from the burner block (1), in particular on the burner plate (2) adjacent plate-shaped cross member (20), which protrudes radially outside of the fastening bolt (8) with respect to the burner axis (10) Has knobs (16) or projection, an adjusting screw or a threaded pin. 5. Brennofen nach einem der Ansprüche 2 oder 3,
dadurch gekennzeichnet,
daß auf dem Befestigungsbolzen (8) zwischen der Brennerplatte (2) und dem Querteil eine Fixierdruckplatte (30) mit einer Stellschraube oder einem Stellgewindestift (31) mit Bezug auf die Brennerachse (10) radial außerhalb des Befestigungsbolzens (8) aufweist.5. Kiln according to one of claims 2 or 3,
characterized by
that on the fastening bolt (8) between the burner plate (2) and the cross member has a fixing pressure plate (30) with an adjusting screw or a set screw (31) with respect to the burner axis (10) radially outside the fastening bolt (8). 6. Brennofen nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß Anlageflächen der Klemm-Zuganker am Brennerstein (1) gewölbt sind.6. Kiln according to one of claims 1 to 5,
characterized by
that contact surfaces of the clamping tie rods on the burner block (1) are curved.
EP90118203A 1989-09-22 1990-09-21 Firing furnace Expired - Lifetime EP0420066B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90118203T ATE98359T1 (en) 1989-09-22 1990-09-21 KILN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8911337U DE8911337U1 (en) 1989-09-22 1989-09-22
DE8911337U 1989-09-22

Publications (2)

Publication Number Publication Date
EP0420066A1 true EP0420066A1 (en) 1991-04-03
EP0420066B1 EP0420066B1 (en) 1993-12-08

Family

ID=6843104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118203A Expired - Lifetime EP0420066B1 (en) 1989-09-22 1990-09-21 Firing furnace

Country Status (3)

Country Link
EP (1) EP0420066B1 (en)
AT (1) ATE98359T1 (en)
DE (2) DE8911337U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800912A (en) * 2018-08-24 2018-11-13 洛阳恒立窑炉有限公司 A kind of double-deck material boat structure of tubular type electric kiln

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666511A (en) * 1923-06-07 1928-04-17 Bethlehem Shipbuilding Corp Lt Oil-burning attachment for furnace fronts
US2791977A (en) * 1950-08-03 1957-05-14 Bernitz Furnace Appliance Comp Refractory burner rings for furnace walls

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666511A (en) * 1923-06-07 1928-04-17 Bethlehem Shipbuilding Corp Lt Oil-burning attachment for furnace fronts
US2791977A (en) * 1950-08-03 1957-05-14 Bernitz Furnace Appliance Comp Refractory burner rings for furnace walls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800912A (en) * 2018-08-24 2018-11-13 洛阳恒立窑炉有限公司 A kind of double-deck material boat structure of tubular type electric kiln
CN108800912B (en) * 2018-08-24 2023-10-20 范氏炉业(洛阳)有限公司 Double-layer material boat structure of tubular electric kiln

Also Published As

Publication number Publication date
EP0420066B1 (en) 1993-12-08
DE8911337U1 (en) 1989-11-02
DE59003778D1 (en) 1994-01-20
ATE98359T1 (en) 1993-12-15

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