EP1602889A1 - Industrial furnace - Google Patents

Industrial furnace Download PDF

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Publication number
EP1602889A1
EP1602889A1 EP04013331A EP04013331A EP1602889A1 EP 1602889 A1 EP1602889 A1 EP 1602889A1 EP 04013331 A EP04013331 A EP 04013331A EP 04013331 A EP04013331 A EP 04013331A EP 1602889 A1 EP1602889 A1 EP 1602889A1
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EP
European Patent Office
Prior art keywords
oven according
layer
wall
expansion joint
concrete
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
EP04013331A
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German (de)
French (fr)
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EP1602889B1 (en
Inventor
Hannes Piringer
Andreas Loebner
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Maerz Ofenbau AG
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Maerz Ofenbau AG
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Publication date
Application filed by Maerz Ofenbau AG filed Critical Maerz Ofenbau AG
Priority to EP04013331A priority Critical patent/EP1602889B1/en
Priority to ES04013331T priority patent/ES2279256T3/en
Priority to DE502004002454T priority patent/DE502004002454D1/en
Priority to AT04013331T priority patent/ATE349667T1/en
Priority to PL04013331T priority patent/PL1602889T3/en
Priority to TW094116814A priority patent/TWI294956B/en
Priority to MYPI20052515A priority patent/MY141346A/en
Priority to BRPI0501993-1A priority patent/BRPI0501993B1/en
Priority to MXPA05005966A priority patent/MXPA05005966A/en
Priority to RU2005117077/03A priority patent/RU2301388C2/en
Priority to CNB2005100760513A priority patent/CN100483057C/en
Publication of EP1602889A1 publication Critical patent/EP1602889A1/en
Application granted granted Critical
Publication of EP1602889B1 publication Critical patent/EP1602889B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/12—Shells or casings; Supports therefor
    • F27B1/14—Arrangements of linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/24—Cooling arrangements
    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • 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 invention relates to an industrial furnace with a circumferentially curved, multi-layered inner wall, at least its convexly curved lining layer interlocking with each other, having refractory shaped stones.
  • the damage can reach a level that is an early renewal of at least the convex outer layer of the inner wall required power.
  • concave lining layer of the inner wall lead the Thermal expansions to a stabilizing tension of the structure.
  • the invention has for its object to avoid the disadvantages mentioned and thus a To find industrial furnace, which increased durability of its refractory lining and so that has improved reliability.
  • the solution of this task is carried out according to the invention in that the convex lining layer formed by shaped blocks is in Circumferential direction formed by at least one of refractory concrete elements, a Expansion joint having compensating area is interrupted, wherein the refractory concrete elements are molded to the adjacent shaped stones, so that they in their tooth profile engage and anchored by concrete anchors to an inner layer of the inner wall.
  • the hanging arrangement of the inner wall 4 shown as an exemplary embodiment has a metallic, inner carrier layer 5 with air-flow cooling channels 6. At its lower end goes they are in a holder 7 for a lower, cast from refractory concrete support ring 8 via.
  • the inner carrier layer 5 is protected on both sides by insulating layers 9,10.
  • the Lining layer 11 interrupted by at least one compensation area 15-18, of which in the embodiment according to the representation in Fig. 2 in the circumferential direction uniformly four are provided.
  • Each equalization area 15 to 18 has two as shown in Figs. 4 and 5 between an expansion joint 19 enclosing concrete elements 20,21, in the circumferential direction are positively connected with the waisted formed adjacent form stones 11 and which are further characterized by several, e.g. bifurcated concrete anchors 22,23 on the metallic support layer 5 are attached. They have a flat cross section, so they only in one direction are compliant and rigid in the vertical direction so that they are the concrete elements 20,21 in its vertical position.
  • waisted shaped blocks 11 hold the concrete elements 20,21 of the four compensation areas 15 to 18 thus the one running between them in an arc of 90 °, convex or arcuate lining sectors 24 to 27 in the manner of a yielding Abutment on the inner, metallic carrier layer 5, so that detachments and local Overloading of the lining can be prevented.
  • the size of the compliance of the compensation areas 15 to 18 is determined by the width of the expansion joint 19 determined.
  • this width of the expansion joints 19 is designed so that they are at Reaching the operating temperature of the furnace at least completely close or beyond allow in the lining sectors 24 to 27 a pressure build-up, so that when cooling First, this pressure is dissipated before shrinking and relative movements in the furnace Structure of the molded blocks 11 are possible.
  • the concrete elements 20, 21 and 30, 31, respectively of the compensation area 15 the same radial width as the refractory shaped bricks 11 of convex lining layer 13, so that their concrete anchors 22,23 by the inwardly adjacent Insulate layer extend and thus perform in this unimpeded bending movement can.
  • the concrete elements 32, 33 extend with one a part of the concrete anchors 22,23 including web 34,35 to the metallic support layer 5 on and thus enclose a space filled with insulating material space 34th für these webs 34,35 are the concrete anchors 22,23 stiffened, so that in the lining sectors 24 to 27 with closed expansion joint 19 can form greater compressive stresses than at the embodiments of Figure 5 and Fig. 6.

Abstract

A refractory lining, particularly for a cylindrical kiln, is formed of furnace bricks (11,12), laid to leave compensation gaps (15) filled with pour-cast fire resistant cement (20,21) and containing central, radial expansion gaps (19), which may be labyrinth form and/or insulation filled. Metal anchor-forks (22, 23), attached to a ducted metal carrier ring (5, 6) are embedded in the cement.

Description

Die Erfindung betrifft einen Industrieofen mit einer umlaufend gekrümmten, mehrschichtigen Innenwand, wobei zumindest ihre konvex gekrümmte Auskleidungsschicht miteinander verzahnte, feuerfeste Formsteine aufweist.The invention relates to an industrial furnace with a circumferentially curved, multi-layered inner wall, at least its convexly curved lining layer interlocking with each other, having refractory shaped stones.

Verschiedene Ofenkonstruktionen, z.B. Ringschachtöfen oder Parallelschacht-Regenerativöfen der Bauweise nach Maerz, weisen ringförmige Ofenbereiche auf, die nach innen durch eine nach unten abgestützte oder hängend angeordnete Innenwand begrenzt sind. Bei der Erwärmung im Kontakt mit Brenngasen vergrössert sich die ringförmig umlaufende, konvexe Aussenschicht, so dass die äusseren Formsteine sich gegenseitig stützend nach aussen schieben. Da dies nicht gleichmässig erfolgt, treten Spannungen auf, durch die sich das Gefüge der Formsteine lockert, bis zum möglichen Bruch einiger Formsteine. Beim Abkühlen infolge eines Betriebsunterbruchs entstehen durch die Schrumpfung hingegen Spalte, die sich anschliessend durch Staub füllen, so dass beim späteren Wiederanheizen des Ofens die genannten Wirkungen in noch stärkerem Masse auftreten und sich die Schäden im Formsteingefüge entsprechend vergrössern. Auf diese Weise können nach wenigen Aufheiz- und Abkühlvorgängen die Schäden ein Ausmass erreichen, die eine baldige Erneuerung zumindest der konvexen Aussenschicht der Innenwand erforderlich macht. An der inneren, konkaven Auskleidungsschicht der Innenwand hingegen führen die Wärmedehnungen zu einer stabilisierenden Verspannung des Gefüges.Various oven designs, e.g. Ring shaft furnaces or parallel shaft regenerative furnaces The construction after March, have annular furnace areas on the inside by a bounded below or supported hanging inner wall are limited. When heating in the Contact with fuel gases increases the annular peripheral convex outer layer, so that the outer stones push each other outwards. As this is not evenly, stresses occur which relax the structure of the stones, until possible breakage of some form stones. When cooling due to a business interruption caused by the shrinkage, however, column, which then fill with dust, so that later re-heating of the oven, the effects mentioned in even greater extent occur and increase the damage in the form of stone accordingly. In this way After a few heating and cooling processes, the damage can reach a level that is an early renewal of at least the convex outer layer of the inner wall required power. On the inner, concave lining layer of the inner wall, however, lead the Thermal expansions to a stabilizing tension of the structure.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu vermeiden und somit einen Industrieofen zu finden, der eine erhöhte Beständigkeit seiner feuerfesten Auskleidung und damit eine verbesserte Betriebssicherheit aufweist. Die Lösung dieser Aufgabe erfolgt erfindungsgemäss dadurch, dass die durch Formsteine gebildete konvexe Auskleidungsschicht in Umfangsrichtung durch mindestens einen aus feuerfesten Betonelementen gebildeten, eine Dehnfuge aufweisenden Ausgleichsbereich unterbrochen ist, wobei die feuerfesten Betonelemente an die angrenzenden Formsteine angegossen sind, so dass sie in deren Verzahnungsprofil eingreifen und durch Betonanker an einer Innenschicht der Innenwand verankert sind. The invention has for its object to avoid the disadvantages mentioned and thus a To find industrial furnace, which increased durability of its refractory lining and so that has improved reliability. The solution of this task is carried out according to the invention in that the convex lining layer formed by shaped blocks is in Circumferential direction formed by at least one of refractory concrete elements, a Expansion joint having compensating area is interrupted, wherein the refractory concrete elements are molded to the adjacent shaped stones, so that they in their tooth profile engage and anchored by concrete anchors to an inner layer of the inner wall.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Patentansprüche und der folgenden Beschreibung anhand der Zeichnungen zu entnehmen. Es zeigt:

  • Fig.1 einen Axialschnitt durch einen eine zylindrische Innenwand aufweisenden Bereich eines Regenerativ-Parallelschachtofens, ,
  • Fig.2 einen Radialschnitt durch die zylindrische Innenwand des Ofenbereichs entlang der Linie II-II der Fig.1,
  • Fig.3 einen vergrösserten Ausschnitt des Ofenbereichs nach Fig.1,
  • Fig.4 eine Seitenansicht eines Bereichs der Innenwand in Richtung des Pfeiles IV der Fig.3,
  • Fig.5 einen Teilquerschnitt durch die Innenwand entlang der Linie V-V der Fig.3 und
  • Fig.6 und Fig.7 Radialschnitte entsprechend Fig.5 mit zwei weiteren Ausführungsbeispielen eines Ausgleichsbereiches.
    • Advantageous embodiments of the invention are set forth in the dependent claims and the following description with reference to the drawings. It shows:
  • 1 shows an axial section through a cylindrical inner wall having region of a regenerative parallel shaft furnace,
  • 2 shows a radial section through the cylindrical inner wall of the furnace area along the line II-II of Figure 1,
  • 3 shows an enlarged section of the furnace area according to FIG.
  • 4 is a side view of a portion of the inner wall in the direction of arrow IV of Figure 3,
  • 5 shows a partial cross section through the inner wall along the line VV of Figure 3 and
  • FIG. 6 and FIG. 7 Radial sections corresponding to FIG. 5 with two further exemplary embodiments of a compensation region.

    • Wie durch in der Literatur vielfach beschriebene Schachtöfen der Bauweise nach Maerz bekannt, haben zwei oder mehrere zueinander parallele Ofenschächte 1 jeweils einen Ringkanal 2, in den die Brenngase in Richtung der Pfeile 3 einströmen, um in einen regenerativ betriebenen zweiten, nicht dargestellten Ofenschacht überzuströmen. Folglich wird die den Ringkanal 2 nach innen begrenzende zylindrische Innenwand 4 von Heissgasen umströmt, deren Temperaturen beim Brennen von Kalk ca. 1000°C betragen.As known by the bay kilns of the Maerz type, which have often been described in the literature, have two or more mutually parallel furnace shafts 1 each have an annular channel 2, in the the fuel gases flow in the direction of the arrows 3, in order to operate in a regeneratively operated second, Overflow not shown furnace shaft. As a result, the ring channel 2 becomes inward bordering cylindrical inner wall 4 flows around hot gases whose temperatures at Burn lime about 1000 ° C amount.

    Die als Ausführungsbeispiel gezeigte hängende Anordnung der Innenwand 4 hat eine metallische, innere Trägerschicht 5 mit luftdurchströmten Kühlkanälen 6. An ihrem unteren Ende geht sie in eine Halterung 7 für einen unteren, aus feuerfestem Beton gegossenen Stützring 8 über. Die innere Trägerschicht 5 ist beidseitig durch Isolierschichten 9,10 geschützt. Den äusseren Abschluss der Innenwand 4 bildet jeweils ein Verschleissfutter aus feuerfesten Formsteinen 11,12, die somit eine äussere konvexe und eine innere konkave Auskleidungsschicht 13,14 bilden. The hanging arrangement of the inner wall 4 shown as an exemplary embodiment has a metallic, inner carrier layer 5 with air-flow cooling channels 6. At its lower end goes they are in a holder 7 for a lower, cast from refractory concrete support ring 8 via. The inner carrier layer 5 is protected on both sides by insulating layers 9,10. The external degree the inner wall 4 forms in each case a wear lining of refractory shaped bricks 11, 12, thus forming an outer convex and an inner concave lining layer 13,14.

    Eine solche hängende Ausführung der Innenwand 4 wurde bisher selten angewandt, da aufgrund ihrer herkömmlichen Bauweise die Gefahr bestand, dass durch eine schadhafte konvexe Auskleidungsschicht 13 Heissgase bis an die metallische Trägerschicht 5 gelangen, so dass diese zerstört wird. Aufgrund vorliegender Erfindung kann jedoch die gegenüber einer von unten abgestützten Bauweise vorteilhaftere hängende Ausführung ohne diese Gefahr realisiert werden.Such a hanging execution of the inner wall 4 has been rarely used because due Their traditional construction was at risk of being damaged by a convex lining layer 13 hot gases reach up to the metallic carrier layer 5, so that this destroyed becomes. However, due to the present invention, it may be supported from below Construction more advantageous hanging execution without this danger can be realized.

    Bei Inbetriebnahme des Ofens bewirkt die zunehmende Aufheizung Wärmedehnungen, die an der inneren, konkaven Auskleidungsschicht 14 zu einer stabilisierenden Kompression der dort vorgesehenen feuerfesten Formsteine 12 führen, während sie in der konvexen Auskleidungsschicht 13 eine Ausdehnung bewirken, die ohne die im Folgenden beschriebene, erfindungsgemässen Massnahmen zu den eingangs beschriebenen Lockerungen im Gefüge der feuerfesten Formsteine 11 führen würden.When commissioning the furnace, the increasing heating causes thermal expansion, the the inner, concave lining layer 14 for stabilizing compression there provided refractory shaped blocks 12 while in the convex lining layer 13 cause an expansion, which without the below-described, according to the invention Measures to the loosening described in the structure of the refractory Would lead to blocks 11.

    Um zu verhindern, dass die beim Aufheizen des Ofens in der äusseren, konvexen Auskleidungsschicht 11 erfolgenden Ausdehnungen zu Beschädigungen im Formsteingefüge führen, ist die Auskleidungsschicht 11 durch mindestens einen Ausgleichsbereich 15-18 unterbrochen, von denen im Ausführungsbeispiel entsprechend der Darstellung in Fig. 2 in Umfangsrichtung gleichmässig verteilt vier vorgesehen sind.To prevent the heating of the oven in the outer, convex lining layer 11 successive expansions lead to damage in the form of stone, is the Lining layer 11 interrupted by at least one compensation area 15-18, of which in the embodiment according to the representation in Fig. 2 in the circumferential direction uniformly four are provided.

    Jeder Ausgleichsbereich 15 bis 18 hat entsprechend der Darstellungen in Fig. 4 und 5 zwei zwischen sich eine Dehnfuge 19 einschliessende Betonelemente 20,21, die in Umfangsrichtung formschlüssig mit den tailliert ausgebildeten, benachbarten Formsteinen 11 verbunden sind und die ausserdem durch mehrere, z.B. gegabelte Betonanker 22,23 an der metallischen Trägerschicht 5 befestigt sind. Sie haben einen flachen Querschnitt, so dass sie nur in einer Richtung nachgiebig sind und in der dazu vertikaler Richtung starr sind, so dass sie die Betonelemente 20,21 in ihrer vertikalen Position blockieren. Durch ihre auch formschlüssige Verbindung mit den zahnartig ineinander greifenden, taillierten Formsteinen 11 halten die Betonelemente 20,21 der vier Ausgleichsbereiche 15 bis 18 somit die zwischen ihnen in einem Bogen von 90° verlaufenden, konvexen bzw. bogenförmigen Auskleidungssektoren 24 bis 27 nach Art eines nachgiebigen Widerlagers an der inneren, metallischen Trägerschicht 5, so dass Ablösungen und örtliche Überlastungen der Auskleidung verhindert werden. Each equalization area 15 to 18 has two as shown in Figs. 4 and 5 between an expansion joint 19 enclosing concrete elements 20,21, in the circumferential direction are positively connected with the waisted formed adjacent form stones 11 and which are further characterized by several, e.g. bifurcated concrete anchors 22,23 on the metallic support layer 5 are attached. They have a flat cross section, so they only in one direction are compliant and rigid in the vertical direction so that they are the concrete elements 20,21 in its vertical position. By her also positive connection with the tooth-like interlocking, waisted shaped blocks 11 hold the concrete elements 20,21 of the four compensation areas 15 to 18 thus the one running between them in an arc of 90 °, convex or arcuate lining sectors 24 to 27 in the manner of a yielding Abutment on the inner, metallic carrier layer 5, so that detachments and local Overloading of the lining can be prevented.

    Die Grösse der Nachgiebigkeit der Ausgleichsbereiche 15 bis 18 wird durch die Breite der Dehnfuge 19 bestimmt. Vorzugsweise ist diese Breite der Dehnfugen 19 so ausgelegt, dass sie sich bei Erreichen der Betriebstemperatur des Ofens zumindest vollständig schliessen oder darüber hinaus in den Auskleidungssektoren 24 bis 27 einen Druckaufbau ermöglichen, so dass beim Abkühlen des Ofens zuerst dieser Druck abgebaut wird, bevor Schrumpfungen und Relativbewegungen im Gefüge der Formsteine 11 möglich sind.The size of the compliance of the compensation areas 15 to 18 is determined by the width of the expansion joint 19 determined. Preferably, this width of the expansion joints 19 is designed so that they are at Reaching the operating temperature of the furnace at least completely close or beyond allow in the lining sectors 24 to 27 a pressure build-up, so that when cooling First, this pressure is dissipated before shrinking and relative movements in the furnace Structure of the molded blocks 11 are possible.

    Entsprechend dem Ausführungsbeispiel nach Fig.6 sind in Umfangsrichtung versetzt zwei Dehnfugen 28,29 vorgesehen, sodass die beiden Betonelemente 30,31 miteinander verzahnt ineinander greifen und sich ein labyrinthartiger Verlauf der Dehnfuge ergibt.According to the embodiment of Figure 6 are offset in the circumferential direction two expansion joints 28,29 provided so that the two concrete elements 30,31 interlocked with each other grab a labyrinthine course of the expansion joint results.

    Bei den Ausführungsbeispielen der Fig. 5 und Fig. 6 haben die Betonelemente 20,21 bzw. 30,31 des Ausgleichsbereiches 15 die gleiche radiale Breite wie die feuerfesten Formsteine 11 der konvexen Auskleidungsschicht 13, so dass sich ihre Betonanker 22,23 durch die nach innen angrenzende Isolierschicht erstrecken und folglich in dieser eine ungehinderte Biegebewegung ausführen können. Beim Ausführungsbeispiel nach Fig.7 reichen die Betonelemente 32,33 mit einem einen Teil der Betonanker 22,23 einschliessenden Steg 34,35 bis an die metallische Trägerschicht 5 heran und umschliessen somit einen durch Isoliermaterial gefüllten Zwischenraum 34. Durch diese Stege 34,35 werden die Betonanker 22,23 versteift, so dass sich in den Auskleidungssektoren 24 bis 27 bei geschlossener Dehnfuge 19 grössere Druckspannungen ausbilden können als bei den Ausführungsbeispielen nach Fig.5 und Fig. 6.In the embodiments of FIGS. 5 and 6, the concrete elements 20, 21 and 30, 31, respectively of the compensation area 15 the same radial width as the refractory shaped bricks 11 of convex lining layer 13, so that their concrete anchors 22,23 by the inwardly adjacent Insulate layer extend and thus perform in this unimpeded bending movement can. In the embodiment according to FIG. 7, the concrete elements 32, 33 extend with one a part of the concrete anchors 22,23 including web 34,35 to the metallic support layer 5 on and thus enclose a space filled with insulating material space 34th Durch these webs 34,35 are the concrete anchors 22,23 stiffened, so that in the lining sectors 24 to 27 with closed expansion joint 19 can form greater compressive stresses than at the embodiments of Figure 5 and Fig. 6.

    Claims (10)

    Industrieofen mit einer umlaufend gekrümmten, mehrschichtigen Innenwand (4), wobei zumindest ihre konvex gekrümmte Auskleidungsschicht (13) miteinander verzahnte, feuerfeste Formsteine (11) aufweist, dadurch gekennzeichnet, dass die durch Formsteine (11) gebildete konvexe Auskleidungsschicht (13) in Umfangsrichtung durch mindestens einen aus feuerfesten Betonelementen (20,21; 30,31) gebildeten, eine Dehnfuge (19; 28,29) aufweisenden Ausgleichsbereich (15) unterbrochen ist, wobei die feuerfesten Betonelemente (20,21; 30,31) an die angrenzenden Formsteine (11) angegossen sind, so dass sie in deren Verzahnungsprofil eingreifen und durch Betonanker (22,23) an einer Innenschicht (5) der Innenwand (4) verankert sind.An industrial furnace having a circumferentially curved, multi-layered inner wall (4), wherein at least its convexly curved lining layer (13) has interlocking, refractory shaped blocks (11), characterized in that the convex lining layer (13) formed by shaped blocks (11) extends in the circumferential direction at least one compensating area (15) formed of refractory concrete elements (20, 21; 30, 31) and having an expansion joint (19; 28, 29) is interrupted, the refractory concrete elements (20, 21; 30, 31) being adjacent to the adjacent shaped blocks (11) are cast so that they engage in the tooth profile and anchored by concrete anchors (22,23) on an inner layer (5) of the inner wall (4). Ofen nach Anspruch 1, dadurch gekennzeichnet, dass die Dehnfuge (28,29) labyrinthförmig verläuft.Oven according to claim 1, characterized in that the expansion joint (28,29) extends in a labyrinth shape. Ofen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Dehnfuge (19; 28,29) bei kaltem Ofen eine Breite hat, die derart dimensioniert ist, dass sie bei Betriebstemperatur des Ofens geschlossen ist.Oven according to claim 1 or 2, characterized in that the expansion joint (19; 28, 29), when the furnace is cold, has a width which is dimensioned such that it is closed at the operating temperature of the furnace. Ofen nach Anspruch 3, dadurch gekennzeichnet, dass die Dehnfuge (19; 28,29) derart dimensioniert ist, dass sie bei Betriebstemperatur des Ofens geschlossen ist und die Formsteine (9) der konvexen Aussenschicht (11) unter einer Druckspannung stehen, die in Umfangsrichtung dieser Aussenschicht verläuft.Oven according to claim 3, characterized in that the expansion joint (19; 28,29) is dimensioned such that it is closed at the operating temperature of the furnace and the shaped blocks (9) of the convex outer layer (11) are under a compressive stress in the circumferential direction this outer layer runs. Ofen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass in der Dehnfuge (19; 28,29) ein kompressibles Isoliermaterial angeordnet ist.Oven according to one of claims 1 to 4, characterized in that in the expansion joint (19; 28,29) a compressible insulating material is arranged. Ofen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine innere Trägerschicht (5) der Innenwand (4) aus Metall besteht und in den die Dehnfuge (19; 28,29) einschliessenden, angegossenen Betonelementen (20,21; 30,31) Betonanker (22,23) eingeschlossen sind, die an der metallischen Trägerschicht (5) befestigt sind. senden, angegossenen Betonelementen (20,21; 30,31) Betonanker (22,23) eingeschlossen sind, die an der metallischen Trägerschicht (5) befestigt sind.Oven according to one of claims 1 to 5, characterized in that an inner support layer (5) of the inner wall (4) consists of metal and in which the expansion joint (19; 28,29) enclosing, cast-in concrete elements (20,21; 30, 31) concrete anchors (22,23) are included, which are fastened to the metallic carrier layer (5). concrete elements (20,21; 30,31) which are attached to the metallic carrier layer (5). Ofen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Innenwand (4) im Ofen hängend angeordnet ist, wobei die metallische Trägerschicht (5) durch eine untere Halterung (7) als Wandträger profiliert ist.Oven according to one of claims 1 to 6, characterized in that the inner wall (4) is arranged hanging in the oven, wherein the metallic carrier layer (5) is profiled by a lower holder (7) as a wall support. Ofen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die radiale Breite der Betonelemente (20,21) des mindestens einen Ausgleichsbereiches derjenigen der Formsteine (11) der konvexen Auskleidungsschicht (13) entspricht.Oven according to one of claims 1 to 7, characterized in that the radial width of the concrete elements (20,21) of the at least one compensation area corresponds to that of the shaped bricks (11) of the convex lining layer (13). Ofen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Betonelemente (32,33) einen nach innen gerichteten, mindestens einen Betonanker (22,23) umschliessenden Steg (34,35) aufweisen, mit dem sie bis an die metallische Trägerschicht (5) heranreichen.Oven according to one of claims 1 to 7, characterized in that the concrete elements (32,33) have an inwardly directed, at least one concrete anchor (22,23) enclosing web (34,35), with which they up to the metallic support layer (5) come close. Ofen nach einem der 6 bis 9, dadurch gekennzeichnet, dass die Betonanker zumindest an einem an die metallische Trägerschicht (5) angrenzenden Bereich in Umfangsrichtung der Innenwand (4) biegsam oder gelenkig ausgeführt sind während sie in vertikaler Richtung starr sind.Oven according to one of the 6 to 9, characterized in that the concrete anchors are at least at one of the metallic support layer (5) adjacent region in the circumferential direction of the inner wall (4) are flexible or articulated while they are rigid in the vertical direction.
    EP04013331A 2004-06-05 2004-06-05 Industrial furnace Active EP1602889B1 (en)

    Priority Applications (11)

    Application Number Priority Date Filing Date Title
    EP04013331A EP1602889B1 (en) 2004-06-05 2004-06-05 Industrial furnace
    ES04013331T ES2279256T3 (en) 2004-06-05 2004-06-05 INDUSTRIAL OVEN.
    DE502004002454T DE502004002454D1 (en) 2004-06-05 2004-06-05 industrial furnace
    AT04013331T ATE349667T1 (en) 2004-06-05 2004-06-05 INDUSTRIAL OVEN
    PL04013331T PL1602889T3 (en) 2004-06-05 2004-06-05 Industrial furnace
    TW094116814A TWI294956B (en) 2004-06-05 2005-05-24 Industrial kiln
    MYPI20052515A MY141346A (en) 2004-06-05 2005-06-02 Industrial kiln
    BRPI0501993-1A BRPI0501993B1 (en) 2004-06-05 2005-06-03 INDUSTRIAL OVEN
    MXPA05005966A MXPA05005966A (en) 2004-06-05 2005-06-03 Industrial furnace.
    RU2005117077/03A RU2301388C2 (en) 2004-06-05 2005-06-03 Industrial furnace
    CNB2005100760513A CN100483057C (en) 2004-06-05 2005-06-03 Industrial furnace

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP04013331A EP1602889B1 (en) 2004-06-05 2004-06-05 Industrial furnace

    Publications (2)

    Publication Number Publication Date
    EP1602889A1 true EP1602889A1 (en) 2005-12-07
    EP1602889B1 EP1602889B1 (en) 2006-12-27

    Family

    ID=34925268

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04013331A Active EP1602889B1 (en) 2004-06-05 2004-06-05 Industrial furnace

    Country Status (11)

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    EP (1) EP1602889B1 (en)
    CN (1) CN100483057C (en)
    AT (1) ATE349667T1 (en)
    BR (1) BRPI0501993B1 (en)
    DE (1) DE502004002454D1 (en)
    ES (1) ES2279256T3 (en)
    MX (1) MXPA05005966A (en)
    MY (1) MY141346A (en)
    PL (1) PL1602889T3 (en)
    RU (1) RU2301388C2 (en)
    TW (1) TWI294956B (en)

    Cited By (6)

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    Publication number Priority date Publication date Assignee Title
    EP2199718A1 (en) 2008-12-09 2010-06-23 Cimprogetti S.p.A. Lime kiln
    EP2199717A1 (en) 2008-12-09 2010-06-23 Cimprogetti S.p.A. Refractory ring for a lime kiln
    CN102012021A (en) * 2010-11-24 2011-04-13 四川电力建设三公司 Circulating fluidized bed boiler wall refractory concrete cast structure and casting method
    CN102980391A (en) * 2012-12-19 2013-03-20 中冶长天国际工程有限责任公司 Construction method of heat-resisting layer at front end of burner
    CN103307883A (en) * 2013-06-25 2013-09-18 淄博中科达耐火材料有限公司 Fire-proof fabricated part for tertiary air duct of dry process cement kiln and manufacturing method of fire-proof fabricated part
    CN108375305A (en) * 2018-05-25 2018-08-07 河南龙成煤高效技术应用有限公司 A kind of stove liner expands with heat and contract with cold collocation structure and stove

    Families Citing this family (3)

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    Publication number Priority date Publication date Assignee Title
    DE102008051059A1 (en) 2008-10-09 2010-05-12 Maerz Ofenbau Ag Refractory lining element
    RU2638268C2 (en) * 2015-11-27 2017-12-12 Общество С Ограниченной Ответственностью Внедренческое Производственное Предприятие "Известа" Mine kiln for roasting carbonate rocks
    RU178166U1 (en) * 2017-04-21 2018-03-26 Общество С Ограниченной Ответственностью "Известа" Direct-flow countercurrent regenerative furnace for calcining carbonate rocks

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    US5163831A (en) * 1989-09-20 1992-11-17 Frazier-Simplex, Inc. Refractory tile for a suspended furnace wall

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    US1672607A (en) * 1925-10-19 1928-06-05 Albert C Fischer Expansion-joint section
    DE3239832A1 (en) * 1982-10-27 1984-05-03 Rheinhold & Mahla Gmbh, 6800 Mannheim FIRE-RESISTANT CONNECTION OF TWO NEXT NEXT WALL ELEMENTS AND METHOD FOR PRODUCING THE CONNECTION
    CN2141545Y (en) * 1992-09-28 1993-09-01 路昕光 Liner of industry kiln
    CN2267445Y (en) * 1996-04-16 1997-11-12 王继辰 Electric furnace forsmelting magnesite
    CN2363161Y (en) * 1998-12-30 2000-02-09 宝山钢铁(集团)公司 Non-metal expansion joint
    CN2381978Y (en) * 1999-07-06 2000-06-07 刘大成 Complex structure of arched cover for light aluminum smelting furnace

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    DE1212710B (en) * 1958-06-07 1966-03-17 Didier Werke Ag A chimney or washing or reaction tower curved around its longitudinal axis
    US5163831A (en) * 1989-09-20 1992-11-17 Frazier-Simplex, Inc. Refractory tile for a suspended furnace wall

    Cited By (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2199718A1 (en) 2008-12-09 2010-06-23 Cimprogetti S.p.A. Lime kiln
    EP2199717A1 (en) 2008-12-09 2010-06-23 Cimprogetti S.p.A. Refractory ring for a lime kiln
    CN102012021A (en) * 2010-11-24 2011-04-13 四川电力建设三公司 Circulating fluidized bed boiler wall refractory concrete cast structure and casting method
    CN102980391A (en) * 2012-12-19 2013-03-20 中冶长天国际工程有限责任公司 Construction method of heat-resisting layer at front end of burner
    CN102980391B (en) * 2012-12-19 2014-12-17 中冶长天国际工程有限责任公司 Construction method of heat-resisting layer at front end of burner
    CN103307883A (en) * 2013-06-25 2013-09-18 淄博中科达耐火材料有限公司 Fire-proof fabricated part for tertiary air duct of dry process cement kiln and manufacturing method of fire-proof fabricated part
    CN103307883B (en) * 2013-06-25 2014-11-05 淄博中科达耐火材料有限公司 Fire-proof fabricated part for tertiary air duct of dry process cement kiln and manufacturing method of fire-proof fabricated part
    CN108375305A (en) * 2018-05-25 2018-08-07 河南龙成煤高效技术应用有限公司 A kind of stove liner expands with heat and contract with cold collocation structure and stove
    CN108375305B (en) * 2018-05-25 2024-01-23 河南龙成煤高效技术应用有限公司 Furnace liner thermal expansion and contraction compensation structure and furnace

    Also Published As

    Publication number Publication date
    CN1707210A (en) 2005-12-14
    BRPI0501993B1 (en) 2017-12-12
    PL1602889T3 (en) 2007-03-30
    RU2301388C2 (en) 2007-06-20
    EP1602889B1 (en) 2006-12-27
    DE502004002454D1 (en) 2007-02-08
    ES2279256T3 (en) 2007-08-16
    TWI294956B (en) 2008-03-21
    BRPI0501993A (en) 2006-01-24
    MY141346A (en) 2010-04-16
    RU2005117077A (en) 2006-12-10
    CN100483057C (en) 2009-04-29
    TW200540384A (en) 2005-12-16
    MXPA05005966A (en) 2006-04-28
    ATE349667T1 (en) 2007-01-15

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