EP0420066B1 - Firing furnace - Google Patents
Firing furnace Download PDFInfo
- Publication number
- EP0420066B1 EP0420066B1 EP90118203A EP90118203A EP0420066B1 EP 0420066 B1 EP0420066 B1 EP 0420066B1 EP 90118203 A EP90118203 A EP 90118203A EP 90118203 A EP90118203 A EP 90118203A EP 0420066 B1 EP0420066 B1 EP 0420066B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- block
- quart
- axis
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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 provided in a furnace wall, in particular in a furnace roof, which surrounds the flame of the burner and at least one clamp-tension screw anchor which anchors the burner block to a burner plate and engages in a recess on the outside of the burner block whose bolt reaching through the burner plate has a fastening nut or the like screwed on, as is known from the US Patent 2,791,977 is known.
- 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.
- this burner block rests on a burner plate.
- these usually several anchors are sufficient, on the screwing nuts of which are screwed, which rests on the outside of the burner plate and thus push 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 invention has for its object to develop the kiln in such a way that the life of the burner stone 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 anchor bolt is tightened, the armature is tilted slightly in the radial direction of 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 Bevels 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 bricks.
- 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 axially opposite the frame 21, which extends to the transverse arms 4 Burner axis is offset.
- 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.
Landscapes
- 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)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Die Neuerung betrifft einen 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, in eine Aussparung auf der Außenseite des Brennersteins eingreifenden Klemm-Zug-Schraubanker, auf dessen durch die Brennerplatte reichender Bolzen eine Befestigungsmutter oder dergl. aufgeschraubt ist, wie er aus der U.S. Patentschrift 2,791,977 bekannt ist. Ein solcher Brennerstein hat eine mittige sich nach außen konisch erweiterende 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 rückwärtigen Seite liegt diese Brennerstein an einer Brennerplatte an. Durch diese reichen meist mehrere Anker, auf deren Schraubenden Muttern aufgeschraubt sind, die auf der Außenseite der Brennerplatte anliegt und so den Brennerstein gegen die Ofenwand drängen. 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 provided in a furnace wall, in particular in a furnace roof, which surrounds the flame of the burner and at least one clamp-tension screw anchor which anchors the burner block to a burner plate and engages in a recess on the outside of the burner block whose bolt reaching through the burner plate has a fastening nut or the like screwed on, as is known from the US Patent 2,791,977 is known. 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 rear side, this burner block rests on a burner plate. Through these usually several anchors are sufficient, on the screwing nuts of which are screwed, which rests on the outside of the burner plate and thus push 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.
Das ist auch bei solchen Brennersteinen der Fall, bei denen die Verankerung von außen erfolgt (US-Patentschrift 1,666,511), indem mit der Brennerplatte durch jeweils eine Kopfschraube verbundene Winkeleisen mit einer radial zur Brennerachse gerichteten Abwinklung in an der Außenseite der Brennersteine eingearbeitete Schlitze eingreifen. Der Brennerstein und die Winkeleisen sind von einem äußeren starken Keramikring umgeben.This is also the case with burner stones in which the anchoring takes place from the outside (US Pat. No. 1,666,511) in that angle irons connected to the burner plate by a cap screw each engage with slots angled in radially to the burner axis in the slots machined on the outside of the burner stones. The burner block and the angle iron are surrounded by an outer, strong ceramic ring.
Der Erfindung liegt die Aufgabe zugrunde, den Brennofen dahingehend fortzuentwickeln, daß die Lebensdauer des Brennersteins erhöht ist.The invention has for its object to develop the kiln in such a way that the life of the burner stone is increased.
Eine diese Aufgabe lösende Ausbildung des Brennofens ist im Patentanspruch 1 gekennzeichnet. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.A design of the kiln that solves this problem is characterized in
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. Especially 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 anchor bolt is tightened, the armature is tilted slightly in the radial direction of 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 design also has the advantage that only one of the quadrants can easily be replaced 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.
- Fig. 1
- a partial longitudinal section through a burner block with a clamping tie rod,
- Fig. 2
- a similar tie rod as in Fig. 1,
- Fig. 3
- 1 shows a perspective view of the edge formation of a burner quartz quadrant in the region of the engagement of the clamping tie rod,
- Fig. 4
- a plan view of a joint between two burner quartz quadrants,
- Fig. 5
- 2 shows an end view of the clamping tie rod according to FIG. 1,
- Fig. 6
- 5 shows a top view of the clamping tie rod according to FIG. 5,
- Fig. 7
- a side view of the clamp tie rod according to FIGS. 5 and 6,
- Fig. 8
- a simplified embodiment of a tie rod,
- Fig. 9
- a side view of the tie rod according to Fig. 8, and
- Fig. 10
- 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 Klemm-Zugankers 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
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
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
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
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
Der Klemm-Zuganker 3 und die Fixierdruckplatte 14 werden zweckmäßig aus Chrom-Nickel-Guß gefertigt.The clamping
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
Claims (5)
- A furnace comprising a quart block or brick to be provided in a furnace wall, especially in a furnace cover, and surrounding the burner flame, and at least one clamp and tie screw anchor (3) anchoring the quart block to a burner plate and engaging in a recess (11) in the outside of the quart block (1), a fastening nut (32) or the like being screwed onto the bolt (8) of said clamp and tie screw anchor (3), said bolt (8) extending through the burner plate (2),
characterized in that
each anchor (3) comprises a crossarm (4) engaging the recess (11) and a transverse member (20) abutting the burner plate (2) or an intermediate plate (14), the upper side of said transverse member (20) that faces the underside of the burner plate (2) or the intermediate plate (14) is inclined with respect to the axis of the bolt (8) and towards the burner axis (10) in such a manner that the transverse member (20) is urged towards the burner axis (10) and against the quart block as the anchor is tensioned. - The furnace according to claim 1,
characterized in that the quart block (1) is radially divided into two or more equal parts, preferably four, and that the clamp and tie screw anchor (3) extends in the area of the separating line between the parts of the quart block, and that the crossarm (4) is divided into two parts each of which extends underneath the respective adjacent quart block part and urges it towards the burner axis (10). - The furnace according to claim 2,
characterized in that each member (20) of the crossarm (4) comprises a protruding portion (16) or a projection, a setscrew or a threaded pin which are radially offset as regards the axis of the bolt (8), with respect to the burner axis (10). - The furnace according to claim 1 or claim 2,
characterized in that on the bolt (8), between the burner plate (2) and the crossarm (4), a fixing pressure plate (30) with a set screw or an adjusting threaded pin (31) is provided so as to be radially offset with respect to the axis of the bolt (8). - The furnace according to any one of claims 1 to 4,
characterized in that the abutment areas of the crossarm (4) or of its members are convex at the quart block (1).
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 | 1989-09-22 | ||
| DE8911337U DE8911337U1 (en) | 1989-09-22 | 1989-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0420066A1 EP0420066A1 (en) | 1991-04-03 |
| EP0420066B1 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| 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 |
-
1989
- 1989-09-22 DE DE8911337U patent/DE8911337U1/de not_active Expired
-
1990
- 1990-09-21 DE DE90118203T patent/DE59003778D1/en not_active Expired - Lifetime
- 1990-09-21 EP EP90118203A patent/EP0420066B1/en not_active Expired - Lifetime
- 1990-09-21 AT AT90118203T patent/ATE98359T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE98359T1 (en) | 1993-12-15 |
| DE8911337U1 (en) | 1989-11-02 |
| DE59003778D1 (en) | 1994-01-20 |
| EP0420066A1 (en) | 1991-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2557846A1 (en) | FASTENING ELEMENT FOR FIRE-RESISTANT LINING | |
| EP0175856B1 (en) | Tension collar with tension screw | |
| LU84868A1 (en) | CLAMPING DEVICE FOR A CLOSURE PLATE ON A SLIDING CLOSURE FOR THE SPOUT ON A CONTAINER CONTAINING METAL MELT | |
| DE2557479A1 (en) | TURNING FACILITIES FOR THE PRODUCTION OF A EXPANDED CLAY PRODUCT FROM CLAY OR SLATE AND A METHOD FOR MANUFACTURING THE TURNING FURNACE | |
| EP0064290A1 (en) | Device for fastening facing panels and such to building structures | |
| EP0420066B1 (en) | Firing furnace | |
| DE2460867C3 (en) | Device for connecting formwork elements | |
| EP2388521A2 (en) | Lining for a finned tube wall of a combustion oven | |
| EP0475216A1 (en) | Screwjoint between struts and nodes of a spaceframe | |
| DE4108754C2 (en) | ||
| DE10347536B4 (en) | Anchoring a column slewing crane | |
| EP1028259B1 (en) | Device for detachably anchoring a fire resistant member to a metal member | |
| DE10204240A1 (en) | Plate for a protection system for a boiler tube wall and protection system for a boiler tube wall | |
| DE3514417C1 (en) | Pipe bolting for mine support sections | |
| EP2990535B1 (en) | Connection fitting for longitudinal connection between pile pieces | |
| DE102018107933A1 (en) | Cantilever arm with internal tube holder fitting | |
| DE3513990C1 (en) | Exchanging device | |
| DE2508274A1 (en) | FRAMEWORK CONNECTION | |
| AT408682B (en) | WALL ANCHOR | |
| DE2011506B2 (en) | Device for anchoring refractory prefabricated parts, especially in rotary kilns | |
| AT305128B (en) | Device for anchoring refractory prefabricated parts, lining produced with this device and method for producing a lining | |
| DE19633307A1 (en) | Bolt assembly fixture for wooden building beams | |
| EP0377098B1 (en) | Arrangement for a casing or scaffolding | |
| DE2734520C3 (en) | Formwork tie rods made of plastic | |
| EP1079043A2 (en) | Connection element for shuttering boards |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE ES FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19910925 |
|
| 17Q | First examination report despatched |
Effective date: 19920403 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE ES FR GB IT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19931208 Ref country code: BE Effective date: 19931208 Ref country code: GB Effective date: 19931208 Ref country code: FR Effective date: 19931208 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19931208 |
|
| REF | Corresponds to: |
Ref document number: 98359 Country of ref document: AT Date of ref document: 19931215 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59003778 Country of ref document: DE Date of ref document: 19940120 |
|
| EN | Fr: translation not filed | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19931208 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19940921 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090928 Year of fee payment: 20 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20100921 |