EP0327821B1 - Securing device for parts and/or mats made from ceramic fibre materials for use in an industrial furnace - Google Patents
Securing device for parts and/or mats made from ceramic fibre materials for use in an industrial furnace Download PDFInfo
- Publication number
- EP0327821B1 EP0327821B1 EP89100465A EP89100465A EP0327821B1 EP 0327821 B1 EP0327821 B1 EP 0327821B1 EP 89100465 A EP89100465 A EP 89100465A EP 89100465 A EP89100465 A EP 89100465A EP 0327821 B1 EP0327821 B1 EP 0327821B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- furnace
- abutments
- extensions
- anchors
- jacket
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 title abstract description 3
- 239000000463 material Substances 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000011214 refractory ceramic Substances 0.000 claims abstract 2
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 5
- 230000000717 retained effect Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 5
- 230000035882 stress Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
- F27D1/144—Supports for ceramic fibre materials
Definitions
- the invention relates to a holding device for molded parts and / or mats made of ceramic fiber material, which are attached to the inside of the metallic furnace shell of an industrial furnace, consisting of rod-shaped, metallic anchors, which are held on the metallic furnace shell and engage in the mats and / or shaped parts, in particular from Steel which has ceramic abutments on its end parts facing the inside of the furnace, engaging on the inside of the mats and / or moldings and clamping the latter to the metallic furnace jacket, with the anchors thermally insulating, fireproof extensions towards the metallic furnace jacket towards the metallic furnace jacket made of ceramic are arranged, which are profiled tubular and are held and penetrated by the anchors.
- Such a holding device is known from US-A 35 23 395.
- the holding device consists of a metallic anchor and a fire-resistant extension provided with a threaded bore, which carries an abutment at its inside end.
- the metallic anchor runs only over a fraction of the thickness of the molded parts or mats, which are pressed against the inner wall of the furnace, while only the ceramic extension with the abutment lying relatively on the inside of the furnace runs over the rest of the length of the entire holding device. This means that bending stresses that occur only have to be partially absorbed by the metallic anchor, but also to a large extent by the ceramic extension element.
- the ceramic part it is necessary for the ceramic part to be formed with an internal threaded bore, which is complex in terms of production technology.
- the object of the invention is a holding device Generic type to create, in which the bending loads can be absorbed essentially by the metallic anchor and a significant increase in the bending strength of the anchor can be achieved without increasing the cross section of the anchor cross-section.
- the abutments are approximately bell-shaped and the anchors engage with their end parts facing the furnace interior through the perforated bottoms of the bell-shaped abutments in the latter, so that the anchor extends from the furnace shell to the furnace interior; that the tubular profiled extensions each have a, in particular molded, axially supporting flange on the bottom of each abutment and are clamped to the bottom of each abutment by means of the anchor or are each formed integrally with the abutment; and that the bell-shaped abutments are closed with plugs made of refractory material.
- the metallic anchors range from the metallic furnace jacket to the inside of the furnace the anchors reach through both the extensions and the perforated bottoms of the bell-shaped abutments. As a result, essentially all bending stresses that occur can be absorbed by the metallic anchor. Characterized in that the anchor penetrates the thermally insulating refractory extensions, the anchor is largely protected against thermal stress even in the penetration area. As a result, it is possible to choose a relatively small cross-section of the anchor and still achieve a high bending strength.
- the extensions extend from the abutments to the temperature ranges of the thermally insulating furnace lining heated to operating temperature of approximately 600 ° C. or less.
- the extensions end at a distance from the furnace jacket.
- the flanges of the extensions are axially supported on the inside of the abutment bottoms and are strained to the abutment bottoms by means of the anchors.
- the anchors are screwed axially adjustable in threaded holes arranged on the furnace jacket.
- the bottoms of the approximately bell-shaped abutments are at least non-positively clamped between the flanges of the extensions and axially effective anchor counter-bearings.
- the flanges are axially supported on the outside of the abutment floors, the axially effective anchor counter bearings are clamped onto the inside of the abutment floors and that effective tensioning devices are arranged on the anchors in the direction of the flanges of the extensions.
- All embodiments have in common that a metallic furnace jacket 1, in particular made of steel, is coated on the inside with mats 2 and a large number of molded parts 3 made of ceramic fiber material arranged next to one another and one above the other.
- a plurality of bolt-shaped anchors 4 made of steel and which engage in the mats 2 and molded parts 3 strive to hold them on the furnace jacket 1.
- the armatures 4 are welded to the furnace jacket 1 with their one end part.
- An abutment 5 made of hard ceramic is detachably fastened to the free end parts of the armatures 4, which are directed towards the furnace interior, each of which has an integrally formed, circumferential, radially outwardly striving flange 6, which is supported axially on the side of a molded part 3 facing the furnace interior .
- the abutments 5 have an approximately bell-shaped shape and the anchors 4 engage with their free end parts through the perforated bottoms 7 of the bell-shaped abutments 5.
- a tubular profiled extension 8 is attached to the armature 4, which can extend into the mats 2, but end at a distance from the furnace jacket 1.
- each of the extensions 8 has an integrally formed, radially outwardly directed circumferential flange 9.
- the flange 9 of each extension 8 is positively supported on the inside of the abutment base 7.
- ceramic fibers and / or refractory mortar can be provided between the support points.
- the anchors 4 end with external thread zones, onto each of which a screw nut 10 is screwed, by means of which on the one hand the flange 9 on the inside of the abutment base 7 and on the other hand via the abutment 5 the molded parts 3 and the mats 2 to the Be tensioned inside the furnace jacket 1.
- a washer 11 which distributes the clamping force uniformly over the entire surface of the flange 9 can be arranged.
- the armature 4 is designed as a cap screw, the head of which is supported on the flange 9 via a washer 11, while the screw shaft having the external thread is screwed into a threaded bore 12 in the furnace jacket 1.
- the threaded bore 12 can be formed by a threaded bushing or screw nut welded onto the furnace jacket 1. It is It is advantageous to provide a through-bore arranged coaxially with the threaded bore 12 in the furnace jacket 1 and a key extension 13 at the free end of the screw shaft so that the cap screw can be tightened through the through-bore of the furnace jacket 1.
- the flange 9 of the extension 8 is supported on the outside of the abutment bottom 7. Furthermore, a screw nut 14 is arranged on the shaft of the anchor 4 designed as a cap screw, by means of which the flange 9 of the extension 8 is clamped to the outside of the abutment base, after which the abutment base 7 is then clamped without play between the flange 9 and the head of the anchor 4 , whereby a kinking of the abutment 5 is excluded from the extension 8.
- the abutment 5 and the extension 8 are each formed in one piece.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
Die Erfindung betrifft eine Haltevorrichtung für Formteile und/oder Matten aus keramischem Fasermaterial, die an der Innenseite des metallischen Ofenmantels eines Industrieofens befestigt sind, bestehend aus am metallischen Ofenmantel gehalterten, in die Matten und/oder Formteile eingreifenden, stabförmigen, metallischen Ankern, insbesondere aus Stahl, die an ihren dem Ofeninneren zugewandten Endteilen keramische, an der Ofeninnenseite der Matten und/oder Formteile angreifende und letztere an dem metallischen Ofenmantel anspannende Widerlager tragen, wobei anschließend an die keramischen Widerlager in Richtung zum metallischen Ofenmantel hin die Anker thermisch isolierende, feuerfeste Verlängerungen aus Keramik angeordnet sind, die rohrförmig profiliert und von den Ankern gehaltert und durchdrungen sind.The invention relates to a holding device for molded parts and / or mats made of ceramic fiber material, which are attached to the inside of the metallic furnace shell of an industrial furnace, consisting of rod-shaped, metallic anchors, which are held on the metallic furnace shell and engage in the mats and / or shaped parts, in particular from Steel which has ceramic abutments on its end parts facing the inside of the furnace, engaging on the inside of the mats and / or moldings and clamping the latter to the metallic furnace jacket, with the anchors thermally insulating, fireproof extensions towards the metallic furnace jacket towards the metallic furnace jacket made of ceramic are arranged, which are profiled tubular and are held and penetrated by the anchors.
Eine derartige Haltevorrichtung ist aus der US-A 35 23 395 bekannt. Dort besteht die Haltevorrichtung aus einem metallischen Anker und einer mit einer Gewindebohrung versehenen feuerfesten Verlängerung, die an ihrem ofeninnenseitigen Ende ein Widerlager trägt.Such a holding device is known from US-A 35 23 395. There, the holding device consists of a metallic anchor and a fire-resistant extension provided with a threaded bore, which carries an abutment at its inside end.
Diese Ausbildung ist in mehrfacher Hinsicht nachteilig.
Der metallische Anker verläuft nur über einen Bruchteil der Dicke der Formteile bzw. Matten, die gegen die Ofeninnenwandung angepreßt sind, während über den Rest der Länge der gesamten Haltevorrichtung lediglich die keramische Verlängerung mit dem relativ ofeninnenseitig liegenden Widerlager verläuft. Dies bedeutet, daß auftretende Biegebelastungen nur teilweise von dem metallischen Anker, zum großen Teil aber auch von dem keramischen Verlängerungselement aufgefangen werden müssen. Zudem ist es erforderlich, daß das Keramikteil mit einer innenliegenden Gewindebohrung ausgebildet wird, was fertigungstechnisch aufwendig ist.This training is disadvantageous in several ways.
The metallic anchor runs only over a fraction of the thickness of the molded parts or mats, which are pressed against the inner wall of the furnace, while only the ceramic extension with the abutment lying relatively on the inside of the furnace runs over the rest of the length of the entire holding device. This means that bending stresses that occur only have to be partially absorbed by the metallic anchor, but also to a large extent by the ceramic extension element. In addition, it is necessary for the ceramic part to be formed with an internal threaded bore, which is complex in terms of production technology.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Haltevorrichtung gattungsgemäßer Art zu schaffen, bei der die Biegebelastungen im wesentlichen vom metallischen Anker aufgenommen werden können und eine erhebliche Erhöhung der Biegebelastbarkeit der Anker ohne Querschnittsvergrößerung des Ankerquerschnittes erreicht werden kann.Based on this prior art, the object of the invention is a holding device Generic type to create, in which the bending loads can be absorbed essentially by the metallic anchor and a significant increase in the bending strength of the anchor can be achieved without increasing the cross section of the anchor cross-section.
Zur Lösung dieser Aufgabe wird vorgeschlagen, daß die Widerlager etwa glockenförmig ausgebildet sind und die Anker mit ihren zum Ofeninneren zugewandten Endteilen durch die gelochten Böden der glockenförmigen Widerlager in letztere eingreifen, so daß der Anker vom Ofenmantel bis zur Ofeninnenseite reicht; daß die rohrförmig profilierten Verlängerungen jeweils einen, insbesondere angeformten, am Boden eines jeden Widerlagers sich axial abstützenden Flansch aufweisen und mittels des Ankers an den Boden eines jeden Widerlagers angespannt sind oder jeweils einstückig mit dem Widerlager ausgebildet sind; und daß die glockenförmigen Widerlager mit Stopfen aus feuerfestem Material verschlossen sind.To solve this problem, it is proposed that the abutments are approximately bell-shaped and the anchors engage with their end parts facing the furnace interior through the perforated bottoms of the bell-shaped abutments in the latter, so that the anchor extends from the furnace shell to the furnace interior; that the tubular profiled extensions each have a, in particular molded, axially supporting flange on the bottom of each abutment and are clamped to the bottom of each abutment by means of the anchor or are each formed integrally with the abutment; and that the bell-shaped abutments are closed with plugs made of refractory material.
Die metallischen Anker reichen von dem metallischen Ofenmantel bis zur Ofeninnenseite, da die Anker sowohl die Verlängerungen als auch die gelochten Böden der glockenförmigen Widerlager durchgreifen. Hierdurch können im wesentlichen alle auftretenden Biegebelastungen vom metallischen Anker aufgenommen werden. Dadurch, daß der Anker die thermisch isolierenden feuerfesten Verlängerungen durchgreift, ist der Anker selbst im Durchgriffsbereich weitgehend gegen thermische Belastungen geschützt. Infolge ist es möglich, den Querschnitt des Ankers relativ gering zu wählen und dennoch eine hohe Biegebelastbarkeit zu erreichen. Durch die glockenförmige Ausbildung des Widerlagers in Verbindung dem Verschluß der Widerlageröffnung durch einen feuerfesten Stopfen wird eine weitere Abschirmung des metallischen Ankers gegenüber dem Ofeninnenraum erreicht, wobei der ofeninnenliegende Kopf des Ankers von der Ofeninnenfläche zurückgesetzt ist.The metallic anchors range from the metallic furnace jacket to the inside of the furnace the anchors reach through both the extensions and the perforated bottoms of the bell-shaped abutments. As a result, essentially all bending stresses that occur can be absorbed by the metallic anchor. Characterized in that the anchor penetrates the thermally insulating refractory extensions, the anchor is largely protected against thermal stress even in the penetration area. As a result, it is possible to choose a relatively small cross-section of the anchor and still achieve a high bending strength. Due to the bell-shaped design of the abutment in connection with the closure of the abutment opening by means of a refractory stopper, a further shielding of the metallic armature from the interior of the furnace is achieved, the inner head of the armature being set back from the inner surface of the furnace.
In Weiterbildung ist es förderlich, wenn die Verlängerungen sich von den Widerlagern aus bis in Temperaturbereiche der auf Betriebstemperatur erwärmten thermisch isolierenden Ofenauskleidung von ca. 600° C oder weniger erstrecken.In a further development, it is beneficial if the extensions extend from the abutments to the temperature ranges of the thermally insulating furnace lining heated to operating temperature of approximately 600 ° C. or less.
Hierdurch werden unter anderem auch Verzunderungen der stählernen Anker zumindest weitgehend vermieden.In this way, scaling of the steel anchors, among other things, is at least largely avoided.
Desweiteren ist es vorteilhaft, wenn die Verlängerungen mit Abstand vom Ofenmantel enden.Furthermore, it is advantageous if the extensions end at a distance from the furnace jacket.
Hierdurch unterbleibt eine Wärmeleitung durch die Verlängerungen aus Keramik zum metallischen Ofenmantel hin.As a result, there is no heat conduction through the ceramic extensions to the metallic furnace jacket.
Vorzugsweise ist vorgesehen, daß die Flansche der Verlängerungen sich innenseitig der Widerlager-Böden axial abstützen und mittels der Anker an die Widerlager-Böden angespannt sind.It is preferably provided that the flanges of the extensions are axially supported on the inside of the abutment bottoms and are strained to the abutment bottoms by means of the anchors.
Dabei kann vorgesehen sein, daß die Anker in am Ofenmantel angeordnete Gewindebohrungen axial einstellbar eingeschraubt sind.It can be provided that the anchors are screwed axially adjustable in threaded holes arranged on the furnace jacket.
Hierdurch werden Verzunderungen der Schraubverbindungen, die das Lösen der Halterungen erschweren, unterbunden.This prevents scaling of the screw connections, which make it difficult to loosen the brackets.
Eine vorteilhafte Weiterbildung ist dadurch gekennzeichnet, daß die Gewindebohrungen in Durchgangsbohrungen des Ofenmantels münden, ferner die Anker an ihren dem Ofenmantel zugewandten Endteilen Schlüsselansätze aufweisen und daß die Schlüsselansätze durch die Durchgangsbohrungen des Ofenmantels betätigbar angeordnet sind.An advantageous further development is characterized in that the threaded bores open into through bores of the furnace jacket, furthermore the anchors have key attachments on their end parts facing the furnace jacket and that the key attachments are arranged so that they can be actuated through the through bores of the furnace jacket.
Diese Maßnahmen erlauben auch ein Nachspannen der Widerlager von außen her, also auch bei erhitztem Industrieofen.These measures also allow the abutments to be re-tensioned from the outside, even when the industrial furnace is heated.
Um eine noch festere Verbindung zwischen den Widerlagern und den Verlängerungen zu erzielen, ist bevorzugt vorgesehen, daß die Böden der etwa glockenförmigen Widerlager zwischen den Flanschen der Verlängerungen und axialwirksamen Ankergegenlagern zumindest kraftschlüssig eingespannt sind.In order to achieve an even stronger connection between the abutments and the extensions, it is preferably provided that the bottoms of the approximately bell-shaped abutments are at least non-positively clamped between the flanges of the extensions and axially effective anchor counter-bearings.
Bevorzugt ist dabei vorgesehen, daß die Flansche sich außenseitig der Widerlagerböden axial abstützen, die axialwirksamen Anker-Gegenlager an die Innenseiten der Widerlagerböden eingespannt sind und daß an den Ankern in Richtung zu den Flanschen der Verlängerungen hin wirksame Spanneinrichtungen angeordnet sind.It is preferably provided that the flanges are axially supported on the outside of the abutment floors, the axially effective anchor counter bearings are clamped onto the inside of the abutment floors and that effective tensioning devices are arranged on the anchors in the direction of the flanges of the extensions.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in the drawings and are described in more detail below.
Es zeigen:
Figur 1- einen Teil eines Industrieofens im Schnitt,
Figur 2 bis 5- weitere Ausführungsformen, ebenfalls im Schnitt gesehen.
- Figure 1
- part of an industrial furnace on average,
- Figure 2 to 5
- further embodiments, also seen in section.
Allen Ausführungsformen ist gemeinsam, daß ein metallischer Ofenmantel 1, insbesondere aus Stahl, innenseitig mit Matten 2 und einer Vielzahl nebeneinander sowie übereinander angeordneter Formteile 3 aus keramischem Fasermaterial beschichtet ist. Zu deren Halterung am Ofenmantel 1 streben eine Vielzahl zum Ofeninneren hinzielender, bolzenförmiger Anker 4 aus Stahl ab, die in die Matten 2 und Formteile 3 eingreifen. Gemäß Ausführungsbeispiel Figur 1 und 4 sind die Anker 4 mit ihrem einen Endteil am Ofenmantel 1 angeschweißt. An den freien, also zum Ofeninneren zielenden Endteilen der Anker 4 ist jeweils ein Widerlager 5 aus Hartkeramik lösbar befestigt, welches jeweils einen angeformten, umlaufenden, radial nach außen abstrebenden Flansch 6 aufweist, der sich an der dem Ofeninneren zugewandten Seite eines Formteiles 3 axial abstützt.All embodiments have in common that a
Die Widerlager 5 haben eine etwa glockenförmige Gestalt und die Anker 4 greifen mit ihren freien Endteilen durch die gelochten Böden 7 der glockenförmigen Widerlager 5 in diese ein. Im Anschluß an die Widerlager ist jeweils eine rohrförmig profilierte Verlängerung 8 auf die Anker 4 aufgesteckt, die bis in die Matten 2 reichen können, aber mit Abstand vom Ofenmantel 1 enden.The
Gemäß Figur 1 bis 3 hat jede der Verlängerungen 8 einen angeformten, radial nach außen gerichteten umlaufenden Flansch 9. Dabei stützt sich der Flansch 9 einer jeden Verlängerung 8 an der Innenseite des Widerlagerbodens 7 formschlüssig ab. Zum Ausgleich von Unebenheiten können zwischen den Abstützstellen Keramikfasern und/oder feuerfester Mörtel vorgesehen sein.According to FIGS. 1 to 3, each of the
Gemäß Figur 1 und 4 enden die Anker 4 mit Außengewindezonen, auf die jeweils eine Schraubenmutter 10 aufgeschraubt ist, mittels welcher einerseits der Flansch 9 an die Innenseite des Widerlager-Bodens 7 und andererseits über das Widerlager 5 die Formteile 3 und die Matten 2 an die Innenseite des Ofenmantels 1 angespannt werden. Zwischen der Schraubenmutter 10 und dem Flansch 9 kann eine die Anspannkraft auf die gesamte Fläche des Flansches 9 gleichmäßig verteilende Scheibe 11 angeordnet werden.According to FIGS. 1 and 4, the
In Figur 2 ist der Anker 4 als Kopfschraube ausgebildet, deren Kopf sich über eine Scheibe 11 am Flansch 9 abstützt, während der das Außengewinde aufweisende Schraubenschaft in eine Gewindebohrung 12 des Ofenmantels 1 eingeschraubt ist. Die Gewindebohrung 12 kann durch eine am Ofenmantel 1 angeschweißte Gewindebuchse oder Schraubenmutter gebildet werden. Dabei ist es vorteilhaft, im Ofenmantel 1 eine zur Gewindebohrung 12 koaxial angeordnete Durchgangsbohrung und am freien Ende des Schraubenschaftes ein Schlüsselansatz 13 vorzusehen, so daß durch die Durchgangsbohrung des Ofenmantels 1 die Kopfschraube angezogen werden kann.In Figure 2, the
In Figur 3 stützt sich der Flansch 9 der Verlängerung 8 außenseitig des Widerlagerbodens 7 ab. Ferner ist auf dem Schaft des als Kopfschraube ausgebildeten Ankers 4 eine Schraubenmutter 14 angeordnet, mittels welcher der Flansch 9 der Verlängerung 8 an die Außenseite des Widerlagerbodens angespannt wird, wonach dann der Widerlagerboden 7 zwischen dem Flansch 9 und dem Kopf des Ankers 4 spiellos eingespannt ist, wodurch ein Abknicken des Widerlagers 5 von der Verlängerung 8 ausgeschlossen ist.In Figure 3, the
Gemäß Figur 4 und 5 sind jeweils das Widerlager 5 und die Verlängerung 8 einstückig ausgebildet.According to FIGS. 4 and 5, the
Zudem sind bei allen etwa glockenförmigen Widerlagern 5 diese nach der Montage der Halterungen mit Stopfen 18 aus feuerfestem Material verschlossen. Es ist auch möglich, die in die glockenförmigen Widerlager 5 hineinreichenden Teile der stählernen Anker 4 mit Keramik zu beschichten, um Verzunderungen dieser Teile zu vermeiden.In addition, in all approximately bell-
Claims (8)
- A retaining device for mouldings (3) and/or mats (2) of ceramic fibrous material which are attached to the inside of the metal jacket (1) of an industrial furnace, the device comprising rod-shaped metal, more particularly steel anchors (4) which are retained on the metal furnace jacket (1) and which engage in the mats (2) and/or mouldings (3) and which bear on their end portions adjacent the interior of the furnace ceramic abutments (5) which engage with the furnace side of the mats (2) and/or mouldings (3) and clamp the latter to the metal furnace jacket (1), the ceramic abutments (5) being followed by thermally insulating refractory ceramic extensions (8) which extend in the direction of the metal furnace jacket (1) and which are tubular in cross-section and are retained by the anchors (4), which extend through said extensions, characterized in that the abutments (5) are substantially bell-shaped in construction and the anchors (4) so engage via their end portions adjacent the interior of the furnace into the bell-shaped abutments (5) through the perforated ends thereof that the anchor (4) extends from the furnace jacket (1) to the interior of the furnace; each of the extensions (8) tubular in cross-section has a more particularly moulded-on flange (9) bearing axially against the end (7) of each abutment (5) and is clamped to the end (7) of each abutment (5) or is constructed unitarily with the abutment (5); and the bell-shaped abutments (5) are closed with plugs (18) of refractory material.
- A retaining means according to claim 1, characterized in that the extensions (8) extend from the abutments (5) as far as temperature ranges of approximately 600°C or less in the thermally insulating furnace lining heated to operating temperature.
- A retaining means according to claims 1 or 2, characterized in that the extensions (8) terminate at a distance from the furnace jacket (1).
- A retaining means according to claim 1, characterized in that the flanges (9) of the extensions (8) bear axially against the insides of the bottoms (7) of the abutments and are clamped to the bottoms (7) of the abutments via the anchors (4).
- A retaining means according to one of claims 1 to 4, characterized in that the anchors (4) are axially adjustably screwed into threaded bores (12) disposed on the furnace jacket (1).
- A retaining means according to claim 5, characterized in that the threaded bores (12) open into continuous bores in the furnace jacket (1); the anchors (4) have key attachments (13) at their end portions adjacent the furnace jacket (1); and the key attachments (13) are disposed to be actuated through the continuous bores of the furnace jacket (1).
- A retaining means according to one of claims 1 to 6, characterized in that the ends (7) of the substantially bell-shaped abutments (5) are at least non-positively clamped between the flanges (9) of the extensions (8) and axially operative anchor opposed bearings.
- A retaining means according to claim 7, characterized in that the flanges (9) are borne axially outside the ends (7) of the abutments; the axially operative anchor opposed bearings are clamped to the insides of the ends (7) of the abutments; and clamping devices (14) operative in the direction of the flanges (9) of the extensions are disposed on the anchors (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89100465T ATE89398T1 (en) | 1988-02-06 | 1989-01-12 | DEVICE FOR SUPPORTING FITTINGS AND/OR MATS OF CERAMIC FIBER MATERIAL FOR INDUSTRIAL FURNACES. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3803681A DE3803681C1 (en) | 1988-02-06 | 1988-02-06 | |
| DE3803681 | 1988-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0327821A1 EP0327821A1 (en) | 1989-08-16 |
| EP0327821B1 true EP0327821B1 (en) | 1993-05-12 |
Family
ID=6346845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89100465A Expired - Lifetime EP0327821B1 (en) | 1988-02-06 | 1989-01-12 | Securing device for parts and/or mats made from ceramic fibre materials for use in an industrial furnace |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0327821B1 (en) |
| AT (1) | ATE89398T1 (en) |
| DE (1) | DE3803681C1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3906986C1 (en) * | 1989-03-04 | 1990-07-19 | Linn High Therm Gmbh, 8459 Hirschbach, De | |
| DE3915703A1 (en) * | 1989-05-13 | 1990-11-15 | Didier Werke Ag | HANGING STONE FOR LINING A FURNACE |
| DE29504758U1 (en) * | 1995-03-21 | 1995-05-18 | Carborundum Deutschland GmbH, 40597 Düsseldorf | Screw fastening for ceramic plates |
| GB2386175A (en) * | 2002-01-11 | 2003-09-10 | T F W Dixon & Son Ltd | Furnace linings & fixing assemblies |
| DE102009036561A1 (en) | 2009-08-10 | 2011-02-17 | Calsitherm Verwaltungs Gmbh | To a thermal insulation self-curing paste |
| CH701828A2 (en) * | 2009-09-15 | 2011-03-15 | Thermtec Schmidt Daemmstoff Engineering Swiss | System comprising a plurality of anchor and holding members for attachment of refractory linings in a high-temperature process chamber. |
| DE102016119924A1 (en) * | 2016-10-19 | 2018-04-19 | Jünger+Gräter GmbH | Industrial furnace wall with lining |
| CN112481435A (en) * | 2020-12-14 | 2021-03-12 | 北京联合荣大工程材料股份有限公司 | Blast furnace cooling wall structure and manufacturing method thereof |
| DE102023000034A1 (en) * | 2023-01-10 | 2024-07-11 | Technische Universität Bergakademie Freiberg, Körperschaft des öffentlichen Rechts | Hollow anchor material composite for high temperature applications |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523395A (en) * | 1969-03-03 | 1970-08-11 | Johns Manville | Furnace construction system |
| US3687093A (en) * | 1971-05-12 | 1972-08-29 | Carborundum Co | Furnace wall construction |
| DE2241287B2 (en) * | 1972-08-22 | 1977-06-02 | FIRE-RESISTANT LINING FOR INDUSTRIAL FURNACE MADE OF PRE-FABRICATED COMPONENTS | |
| DE3228319C2 (en) * | 1982-07-29 | 1985-02-07 | Bulten-Kanthal GmbH, 6082 Mörfelden-Walldorf | Holding device for mats or molded parts made of ceramic fiber material for an oven |
| DE3401396A1 (en) * | 1984-01-17 | 1985-07-25 | Plibrico Co GmbH, 4000 Düsseldorf | Anchor for the fastening of refractory linings |
| DE3419540C1 (en) * | 1984-05-25 | 1985-11-28 | Didier-Werke Ag, 6200 Wiesbaden | Multi-layer insulation component |
| DE3604493C1 (en) * | 1986-02-13 | 1986-12-11 | Abicht, Roland, Ing.(grad.), 5828 Ennepetal | Refractory lining for an industrial furnace |
-
1988
- 1988-02-06 DE DE3803681A patent/DE3803681C1/de not_active Expired
-
1989
- 1989-01-12 EP EP89100465A patent/EP0327821B1/en not_active Expired - Lifetime
- 1989-01-12 AT AT89100465T patent/ATE89398T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE89398T1 (en) | 1993-05-15 |
| EP0327821A1 (en) | 1989-08-16 |
| DE3803681C1 (en) | 1988-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3435118C2 (en) | ||
| DE4216197A1 (en) | screw | |
| DE19502730A1 (en) | Ceramic lining | |
| EP0327821B1 (en) | Securing device for parts and/or mats made from ceramic fibre materials for use in an industrial furnace | |
| DE3840531C1 (en) | Warp knitting machine with at least one bar | |
| DE69703604T2 (en) | Hot chamber die casting machine for aluminum and aluminum alloys | |
| DE3427372C2 (en) | Fuel element for a boiling water reactor | |
| DE4446017A1 (en) | Brake disc, in particular internally ventilated brake disc | |
| DE102019112608A1 (en) | Precast concrete slab and composite component with a precast concrete slab | |
| WO1993011324A1 (en) | Anchoring device for pre-stressing components in a structural component | |
| DE2515423A1 (en) | Structural connecting-cable wires in plastic bedding anchorage - with malleable layer between cables and clamp surfaces for isostatic pressure transfer | |
| DE3151783A1 (en) | COMPONENT FROM CONCRETE CONCRETE | |
| WO1998005451A1 (en) | Fireproof plate and a clamping device for a sliding gate at the outlet of a vessel containing molten metal | |
| DE3428813C2 (en) | Device for tensioning a stay cable, especially rope bridges | |
| DE1159221B (en) | Concrete pipe with reinforcement through longitudinally prestressed steel wires | |
| DE19944956C1 (en) | Device for attaching a vibration damper to an overhead line | |
| DE3014600C2 (en) | Connection fitting for an insulator rod made of glass fiber reinforced plastic | |
| DE2950303C2 (en) | Device for end anchoring of tendons | |
| DE3234246A1 (en) | Cable, in particular for cable-stayed bridges of reinforced concrete | |
| DE8801526U1 (en) | Holding device for molded parts and/or mats made of ceramic fiber material for industrial furnaces | |
| DE8902948U1 (en) | Device for sound-absorbing fastening of pipes | |
| DE29508953U1 (en) | Screw clamping device for screwing the lid on reactor pressure vessels and the like. | |
| DE7716731U1 (en) | SUPPORTING BOLTS | |
| DE19504349A1 (en) | Adjustable support for false floor in building | |
| EP1239083A2 (en) | Building structure with walls having substantially externally placed tensioning members |
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 |
|
| 17P | Request for examination filed |
Effective date: 19890415 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH FR GB IT LI SE |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ABICHT, ROLAND, ING. GRAD. |
|
| 17Q | First examination report despatched |
Effective date: 19910417 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH FR GB IT LI SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19930512 |
|
| REF | Corresponds to: |
Ref document number: 89398 Country of ref document: AT Date of ref document: 19930515 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent 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: 19930512 |
|
| EAL | Se: european patent in force in sweden |
Ref document number: 89100465.7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20070131 Year of fee payment: 19 Ref country code: SE Payment date: 20070131 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20070328 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20070523 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070131 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| EUG | Se: european patent has lapsed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080131 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080112 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20081029 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080113 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080131 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20080112 |
|
| 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 |