EP3287727B1 - Burning kit - Google Patents

Burning kit Download PDF

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Publication number
EP3287727B1
EP3287727B1 EP17001417.9A EP17001417A EP3287727B1 EP 3287727 B1 EP3287727 B1 EP 3287727B1 EP 17001417 A EP17001417 A EP 17001417A EP 3287727 B1 EP3287727 B1 EP 3287727B1
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EP
European Patent Office
Prior art keywords
firing
type
aid according
transverse
transverse rods
Prior art date
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Active
Application number
EP17001417.9A
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German (de)
French (fr)
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EP3287727A1 (en
Inventor
Detlef Brands
Joachim Meurer
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Schunk Ingenieurkeramik GmbH
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Schunk Ingenieurkeramik GmbH
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Publication of EP3287727A1 publication Critical patent/EP3287727A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0006—Composite supporting structures

Definitions

  • the invention relates to a kiln furniture according to the preamble of claim 1.
  • WO 2012/076159 A1 is a generic kiln furniture known.
  • the structural design of the kiln furniture allows a multifunctional use as a support for kiln or blanks.
  • the kiln furniture has at least two elongate profiles fixed in parallel to each other, into which transverse bars can be inserted for releasable mechanical connection with the profiles and as supports for the kiln.
  • the kiln furniture is skeletal buildable with crossbars, the crossbars are releasably positioned. The positioning is effected by a positive guidance of the transverse rod ends towards predetermined latching depressions.
  • the disadvantage is that the parallel spaced fixing of the profiles end of the profile locking latch are required, which contribute to the thermal mass of the kiln furniture.
  • U1 is a kiln furniture in the form of a setting frame for receiving fuel during a kiln fire known, the number of rods has, which are fixed to each other in the manner of a grate for bearing the fuel over at least two bars spaced.
  • at least two bars each form a plug-in strip with a number of plug-in openings for the bars.
  • the insertion openings are passage openings through which the rods can be inserted transversely to the longitudinal direction of the bolt.
  • the object of the invention is therefore to provide a kiln furniture whose structure is simplified and whose thermal mass is better optimized.
  • a kiln furniture in which the profiles form a support frame together with the insertable into this crossbars of the first kind.
  • the crossbars according to the invention in addition to their function as a support for kiln or blanks a positional fixation of the profiles to each other.
  • the position fixation of the profiles is achieved by introducing a on the Cross bars of the first kind arranged projection in the cavity between two walls of the double-walled side parts. The introduction takes place by inserting the projection formed on the transverse rods of the first type into a slot provided on the inside wall of the side part.
  • the projection By lowering the cross bar into the downwardly tapered portion of the slot, the projection is positioned like a trap in the region of the taper portion between the two walls of the side part. In this way, a cross-axial positional fixation between the transverse bars of the first kind and the side parts of the kiln furniture is created.
  • the cross-axial fixing of the cross bars of the first kind causes a stabilization of the support frame, so that it is possible to dispense with additional elements connecting the side parts firmly.
  • the structural design of the kiln furniture according to the invention is therefore simplified and reduced its thermal mass.
  • the downward tapered portion forms by the keyhole-shaped design of the slot a preferred position for the inserted cross bar first type. This preferred position is taken under the weight of the crossbar first type and maintained. Unintentional release of the axial positional fixation is prevented.
  • An internal positioning of the projection in the cavity of the side part is realized by means of a key / lock principle.
  • the inner wall may have receptacles for inserting transverse bars of the second kind.
  • crossbars of the first and second type with different cross-sectional profiles, it is possible to form bearing surfaces adapted to the firing material to be mounted in each case.
  • the cross bars of the first type may have a polygonal cross-sectional profile, whereby an axial rotation of the cross bars of the first type is prevented in the tapering portion of the slot.
  • the crossbars of the second type preferably have a round cross-sectional profile in order to allow an axial rotation of the crossbars of the second type in the inserted state.
  • the transverse rods of the second type each end on projections which are axially engageable with the respective inner wall of the Side part.
  • the transverse rods of the second type then form support struts, which stabilize the side parts in the transverse direction.
  • the transverse rods of the second type can each be axially engaged with the mutually facing inner sides of the inner walls.
  • the inner walls are then fixed in position between the projections arranged on the outside of the transverse rods of the first type and the projections arranged on the inside of the transverse rods of the second type as stops, whereby a particularly stable support frame is formed.
  • the projections of the transverse rods of the first type may have an axial extent, which is adapted to an axial extent of the cavity in the insertion direction.
  • a fixing element may be provided which can be inserted into a slot to a transverse bar of the first type lowered into the narrowing section.
  • a lowered transverse bar can be fixed in the tapering section of the oblong hole.
  • a positive connection is formed in the plug-in direction substantially perpendicular direction, so that the transverse bar is received in all spatial directions secured in the side part.
  • the fixing element is releasably fixed by means of a pin connection with respect to a transverse bar of the first type lowered in the narrowing section and / or the associated projection of the transverse bar.
  • a pin connection secures the fixing element against a displacement in the insertion direction.
  • the side part may have a skeletal support structure.
  • a skeleton construction the stability of the side parts is increased and the filigree Design also reduces the thermal mass of the kiln furniture.
  • the support structure may preferably have mutually braced, post-like support elements which are stackable.
  • the post-like support elements corner posts of the fuel rack, which ensure a tip-proof stackability and remove the loads acting on the firing frame eckmen.
  • the side parts, cross bars and projections are preferably made of a ceramic, in particular of a technical SiC ceramic, resulting in advantages in terms of production life and fatigue life. Lower thermal masses are possible due to the material as well as shape-related possible.
  • Fig. 1 shows two trained as stackable cassettes kiln furniture 1 according to an embodiment of the invention.
  • the kiln furniture 1 serve to receive fuel for burning objects in an oven.
  • the kiln furniture 1 comprise at least two mutually spaced side parts 2, 3, in the transverse rods 4 of the first kind for releasable mechanical connection with the side parts 2, 3 and as supports for the fuel are pluggable.
  • the at least two side parts 2, 3 are connected to each other by the cross bars 4 of the first kind and can thus form a support frame.
  • the connection between side parts 2, 3 and the cross bars 4 of the first kind is a plug connection.
  • the plugging direction preferably extends substantially perpendicular to the inner walls of the side parts 2, 3.
  • the side parts 2, 3 form the side walls of the support frame.
  • the side parts 2, 3 are double-walled.
  • the side parts 2, 3 may be hollow sections.
  • the side parts 2, 3 may have recesses 18 in areas between the connectors.
  • the side parts 2, 3 When designed as a stackable cassettes kiln furniture 1, the side parts 2, 3 preferably on their top and bottom stacking surfaces.
  • On the stacking surfaces preferably connecting elements 19, 20, in particular connecting elements 19, 20 of a tongue and groove connection are provided, which engage in stacking of the cassettes. The stackability of the cassettes is improved.
  • the connecting elements of the tongue and groove connection are arranged differently directed on at least two stacking surfaces of a side part 2, 3. Slippage of the stacked cassettes against each other is thus prevented.
  • the Fig. 2 shows a detailed view of a kiln furniture 1 according to the invention Fig. 1 that explains the connector between side panels 2, 3 and 4 crossbars first type.
  • Fig. 2 shows the plug connection in the inserted and in the released state.
  • the side parts 2, 3 are double-walled with the inclusion of a cavity 5 for a mechanical anchoring on both sides inserted cross bars 4.
  • At the cross bars to each at least one projection 6 is formed in each end.
  • the projection 6 is key-like in the associated cavity 5 can be inserted through a provided on the respective inner wall 7, 8 of the double-walled side part 2, 3 slot 9.
  • the slot has a downward taper portion 10, in which a cross bar 4 is lowered under its own weight , Thereby, the respective projection 6 with the respective inner wall 7, 8 can be brought into a engaging engagement.
  • FIG. 1 shown side part 2 has a total of four slots 9, two of which in Fig. 2 are visible.
  • the slots 9 have an upper, opposite the downward tapered portion 10 widened insertion portion 21.
  • Insertion section 21 and tapering section 10 are connected to each other and may also overlap in individual embodiments.
  • the slot 9 is characterized keyhole-shaped.
  • the cross section of the insertion section 21 is preferably adapted to the cross-sectional profile of the transverse rod 4 of the first type in the region of the projection 6.
  • the width of the tapering section is preferably adapted to the width of the transverse bar 4 of the first type, so that a transverse bar 4 lowered into the tapering section has only slight horizontal play.
  • the projection 6 can be inserted with the transverse bar 4 of the first type in the region of the insertion section 21 in the side part 2.
  • the projection 6 may have an axial extent X.
  • the cross-sectional area of the cross bar 4 is increased by the projection 6.
  • the enlarged by the projection 6 cross-sectional area of the transverse bar 4 takes on insertion of the cross bar a part of the Einsteckabêtes 21 a.
  • the engaging engagement of the projection 6 in the cavity 5 engages in the insertion direction.
  • the engagement acts between the end faces of the projection 6 and inner edge regions of the double-walled side part 2 introduced slot 5 in the region of the taper portion 10.
  • the engaging engagement of the connector is thus achieved by a plug-and-catch movement.
  • this plug-latching movement is carried out on the insertion movement of the cross bar 4 of the first kind a preferably substantially perpendicular thereto executed latching movement, by which the cross bar 4 is lowered into the tapering section 10.
  • the cross-sectional area of the tapering section 10 is preferably substantially filled by the cross-sectional area of the transverse bar 4.
  • the projection 6 protrudes on at least one side of the cross bar 4 of the first kind.
  • the projection 6 is formed integrally with the transverse bar 4.
  • the projection 6 may also be fixed on the transverse bar 4.
  • the in Fig. 2 projection 6 shown protrudes on three sides of the cross bar and increases its width two opposite sides.
  • the projection 6 can also be applied only on one side to increase the width of the cross bar 4.
  • the slots 9 are formed at least in a side part 2, 3 as through holes.
  • the cross bars 4 are then pushed through from an outer side by a side part 2, 3.
  • the transverse rods 4 can be used individually and exchanged in the kiln furniture 1.
  • At least one fixing element 16 may be provided, which can be inserted into a slot 9 in such a way as to be lowered into the narrowing section 10 in such a way that the lowered transverse bar 4 is fixed in the narrowing section 10.
  • a fixing element 16 is provided for each slot 9.
  • the cross section of the fixing element 16 is preferably adapted to the cross section of the insertion section 21.
  • the fixing element 16 can thus block the passage opening in the region of the insertion section 21.
  • the inserted fixing element 16 can prevent a displacement of the transverse rod 4 from the tapering section 10 into the insertion section 21.
  • the effected by the fixing element 16 mechanical engagement between transverse bar 4, fixing element 16 and side part 2, 3 acts in the latching direction of the sliding-latching movement.
  • the fixing element 16 is preferably adapted in cross-section of the slot 9 so that it largely closes the oblong hole 9 at a cross bar 4 lowered into the taper section 10. In particular, the fixing element 16 blocks the insertion section 21 of the slot 9.
  • the inner wall 7, 8 can have receptacles 11 for inserting transverse bars 12 of a second type, the transverse bars 4 of the first type and the transverse bars 12 of the second type having different cross-sectional profiles.
  • the transverse rods 4 of the first type preferably have a polygonal cross-sectional profile and the transverse rods 12 of the second type have a round cross-sectional profile.
  • the cross section of the transverse rods 4 is preferably polygonal, in particular rectangular, and particularly preferably square.
  • the transverse rods 4, 12 of the first type and the second type are preferably designed as hollow rods. Instead of hollow bars and (solid) beams or profiles can be used as cross bars.
  • the cross bars 12 of the second type provide a clipboard for kiln material relative to the transverse bars 4 of the first type.
  • the receptacles 11 for the transverse rods 12 of the second type are arranged offset in the vertical direction with respect to the oblong holes 9 in the side parts 2, 3.
  • a horizontal offset between the receptacles 11 and the slots 9 may be provided to provide different, the size of the aufegaden firing material adapted bearing surfaces.
  • the distances created by the vertical offset of the supports formed by the transverse rods 4, 12 are preferably, as in Fig. 4 shown, equidistant, but can also be chosen differently.
  • the crossbars 12 of the second type may each end projections 13 which are axially engageable with the respective inner wall 7, 8 of the side part 2, 3 to form a support strut for lateral stabilization of the side parts 2, 3 to each other.
  • the respective end projections 13 may, as in Fig. 4 , shown integrally formed and extend over the area between the side parts 2, 3.
  • the projections 13 of the transverse rods 12 of the second type are preferably in each case axially engageable with the mutually facing inner sides 14, 15 of the inner walls 7, 8. As Fig. 4 and 5 show the projections 13 then stops for the facing inner sides 14, 15 of the inner walls 7, 8th
  • the cross section of the passage openings is then preferably adapted to the cross section of the transverse rods 12 of the second type with an extension section 25 as the passage for the projections 13 in an axial orientation of the transverse rods 12.
  • the projections 13 are then positioned between the two side parts 2, 3 by insertion from the outside. By axial rotation of the cross bar 12, the projections 13 with the mutually facing inner sides 14, 15 of the inner walls 7, 8 are axially brought into engagement.
  • Fig. 5 shows a cross section through the connection of a cross bar 12 of the second type with a side part 2.
  • the receptacle 11 is formed as a passage opening. It is adapted to the cross section of the cross bar 12 and has a through
  • FIG. 6 and 7 show a projection 6, the axial extent X of the extension of the cavity 5 is adapted in the insertion direction for fixing the position of the cross bar 4 in the insertion direction. In this case, only a small clearance of the cross bar 4 remains in the insertion direction.
  • the projection 6 may be received in a form-fitting manner in the cavity 5. In the form-fitting form the walls of the double-walled profile stops for the projection 6 during axial movement of the cross bar 4. By adjusting a cross-positional fixing of the transverse rods 4 can be achieved in the axial direction.
  • the slots 9 may be formed with an extending between the walls of the double-walled side part 2 bottom surface 23.
  • the bottom surface 23 forms a support for the lowered in the tapered portion 10 transverse bar 4.
  • the load of the cross bar 4 is introduced into the bottom surface 23 and discharged through the walls of the side part 2.
  • the bottom surface 23 has at least one elevation 24 extending essentially transversely to the direction of insertion of the transverse rods 4.
  • the transverse bar 4 is preferably located on the apex line of the at least one elevation 24, resulting in a defined line load.
  • two parallel extending elevations 24 are provided which are formed like a bead.
  • the support may also be designed as a bearing surface, which forms a partial surface of the bottom surface 23. Due to the extensive force application, even high loads can be absorbed over a wide area.
  • the at least one fixing element 16 in the inserted state against a lowered in the taper portion 10 transverse bar 4 first type and / or the associated projection 6 by means of a pin connection 17 can be releasably fixed.
  • a pin is preferably provided on an underside of the fixing element 16 which engages in the inserted state of the fixing element 16 with a recess on an upper side of the projection 6 or the cross bar 4.
  • the pin connection 17 is preferably arranged centrally on the contact surface between fixing element 16 and projection 6 or transverse bar 4.
  • the fixing element 16 preferably has an opening 22 for receiving a tool.
  • the fixing element 16 can be raised during the insertion or release of the fixing element 16, whereby the pin connection 17 is disengaged.
  • the fixing element 11 preferably has a sufficient clearance with respect to the slot 9.
  • the pin connection 17 may comprise a plurality of pins and recesses which are arranged distributed on the contact surface of the fixing element 16 and the projection 6 or transverse bar 4.
  • Fig. 8 shows three stacked to a firing kiln kiln furniture 1 according to a second embodiment of the invention.
  • the side parts 2, 3 have a skeletal support structure.
  • the support structure of the side parts 2, 3 preferably has mutually braced, post-like support elements 30, 31, which are stackable.
  • slots 9 are provided for receiving the cross bars 4 of the first kind.
  • the plug connection between the side parts 2, 3 and the transverse bars 4 of the first kind (see. Fig. 9 ), in which a projection 6 of the cross bar 4 is positioned according to a key / lock principle in a cavity of the double-walled side part 2, 3, is analogous to the first Embodiment formed.
  • the side parts 2, 3 preferably both walls of the double-walled side part 2, 3 by breaking through slots 9.
  • the transverse rods 4 can then project from the side parts 2, 3 at the ends for the support of additional plates 34 for the storage of fuel.
  • Fig. 10 shows a side view of the burning frame according to Fig. 8 with a plurality of kiln furniture 1.
  • Spacers 33 are provided for a height spacing of individual kiln furniture 1 to each other.
  • the spacer elements 33 are introduced between the post-like support elements 30, 31 of adjacent kiln furniture 1, for example between the upper two kiln furniture.
  • the post-like support elements 30, 31 can also be stacked directly on each other, as shown for example for the lower two kiln furniture.
  • the height spacing of the transverse rods 4 of the first type of stacked kiln furniture 1 is adjustable.
  • a firing frame is created with a higher degree of flexibility, in which the height of the frame and the height distances between the transverse rods 4 are adaptable to the product-dependent height differences of the combustible.
  • spacers 33 cost-effective, refractory components in post form, such as coarse ceramic cylindrical sleeves, can be used, which are positioned in case of need between the post-like support members 30, 31 of the stacked kiln furniture 1.
  • connecting elements 19a, 19b are provided on end surfaces of the post-like support elements 30, 31 formed as stacking surfaces 28, 29, which engage in stacking of the support elements 30, 31 and which position the support elements 30, 31 relative to one another.
  • Particularly preferred are the connecting elements 19a, 19b, as in Fig. 11 illustrated, the cross-sectional contour of the spacer elements 33 adapted so that they also allow positioning of the spacer elements 33 with respect to the support members 30, 31.
  • the connecting elements 19a, 19b as an annular elevation or depression on the stacking surfaces 28, 29 may be formed, which are both directly to each other and with sleeve-like, cylindrical spacers 33 are engageable.
  • the strut 32 of the post-like support members 30, 31 preferably has a truss structure.
  • a spatial truss structure can be provided, whereby the support elements 30, 31 are supported relative to acting loads and moments in all spatial directions to each other.
  • the spatial truss structure preferably has a central node 36 arranged between the support elements 30, 31.
  • the support members 30, 31 are preferably formed as a hollow column body.
  • the top surfaces of the support elements 30, 31 may have openings 35.
  • the support elements 30, 31 may have a round or polygonal cross-section.
  • the post-like support elements may additionally comprise receptacles for the insertion of transverse bars of the second type.
  • the side parts 2, 3 can be produced in a 3D printing process.
  • the side parts 2, 3, the transverse rods 4, 12 and the projections 6, 13 of the kiln furniture are preferably made of a ceramic.
  • the fixing elements 16 are preferably made of ceramic.
  • the projections 6, 13 are preferably garnished on the transverse rods 4, 12.
  • the ceramic is preferably a SiC ceramic.
  • the following materials can also be used as materials for the kiln furniture: silicon-infiltrated, reaction-bonded SiC (RBSiC); siliconized, recrystallized SiC (SiSiC); recrystallized SiC (RSiC); silicon nitride bonded SiC (NSiC); pressureless sintered SiC (SSiC); liquid phase sintered SiC (SSiC); Silica-bound SiC.
  • Suitable alternative materials are: mullite-bound Al 2 O 3; Corundum; sillimanite; Al2O3; Zirconium silicate; Cordierite / mullite.

Description

Die Erfindung betrifft ein Brennhilfsmittel nach dem Oberbegriff des Anspruchs 1.The invention relates to a kiln furniture according to the preamble of claim 1.

Aus WO 2012/076159 A1 ist ein gattungsgemäßes Brennhilfsmittel bekannt. Die konstruktive Gestaltung des Brennhilfsmittels ermöglicht eine multifunktionale Nutzung als Auflage für Brenngut bzw. Rohlinge. Das Brennhilfsmittel weist mindestens zwei parallel zueinander beabstandet fixierte, längliche Profile auf, in die Querstäbe zur lösbaren mechanischen Verbindung mit den Profilen und als Auflagen für das Brenngut einsetzbar sind. Das Brennhilfsmittel ist dabei skelettartig mit Querstäben aufbaubar, wobei die Querstäbe lösbar positionierbar sind. Die Positionierung erfolgt durch eine Zwangsführung der Querstabenden hin zu vorbestimmten Rastvertiefungen. Nachteilig ist, dass zur parallel beabstandeten Fixierung der Profile endseitig der Profile Verschlussriegel erforderlich sind, die zur thermischen Masse des Brennhilfsmittels beitragen.Out WO 2012/076159 A1 is a generic kiln furniture known. The structural design of the kiln furniture allows a multifunctional use as a support for kiln or blanks. The kiln furniture has at least two elongate profiles fixed in parallel to each other, into which transverse bars can be inserted for releasable mechanical connection with the profiles and as supports for the kiln. The kiln furniture is skeletal buildable with crossbars, the crossbars are releasably positioned. The positioning is effected by a positive guidance of the transverse rod ends towards predetermined latching depressions. The disadvantage is that the parallel spaced fixing of the profiles end of the profile locking latch are required, which contribute to the thermal mass of the kiln furniture.

Aus DE 20 2006 009 973 U1 ist ein Brennhilfsmittel in Form eines Setzgestells zur Aufnahme von Brenngut während eines Ofenbrands bekannt, das eine Anzahl Stäbe aufweist, die nach Art eines Rostes zur Auflagerung des Brenngutes über mindestens zwei Riegel beabstandet zueinander fixiert sind. Damit das Setzgestell als stabile Unterlage für das Brenngut mit einer vergleichsweise geringen Masse auskommt, ist vorgesehen, dass mindestens zwei Riegel jeweils eine Steckleiste mit einer Anzahl Stecköffnungen für die Stäbe bilden. Die Stecköffnungen sind Durchgangsöffnungen, durch die die Stäbe quer zur Längsrichtung der Riegel einsetzbar sind. Mittels eines in eine innere Durchgangsöffnung der Riegel einsetzbaren Steckverbinders sind die Stäbe gemeinsam an einem Riegel fixierbar. Nachteilig ist, dass die gemeinsame Fixierung durch einen Steckverbinder eine hohe Fertigungsgenauigkeit erfordert und die Steckverbinder die thermische Masse des Brennhilfsmittels erhöhen.Out DE 20 2006 009 973 U1 is a kiln furniture in the form of a setting frame for receiving fuel during a kiln fire known, the number of rods has, which are fixed to each other in the manner of a grate for bearing the fuel over at least two bars spaced. In order for the setting frame to make do with a comparatively low mass as a stable base for the kiln, it is provided that at least two bars each form a plug-in strip with a number of plug-in openings for the bars. The insertion openings are passage openings through which the rods can be inserted transversely to the longitudinal direction of the bolt. By means of a insertable into an inner passage opening of the latch connector, the rods are fixed together on a latch. The disadvantage is that the common fixation by a connector requires a high manufacturing accuracy and the connectors increase the thermal mass of the kiln furniture.

Aus DE 10 2006 038 149 A1 ist ein Brenngestellaufbau bekannt, welcher aus mehreren Brenngestellen aufgebaut ist. Jedes Brenngestell weist zwei Kassetten auf, welche Brennstäbe halten. Eine Auszugssicherung ist vorgesehen, welche dafür sorgt, dass in der auszugsgesicherten Stellung die Brennstäbe in axialer Richtung gesichert sind. In einer Freigabestellung, bei der die Kassetten gegeneinander verschoben sind, können die Brennstäbe aus den Kassetten entnommen werden. Nachteilig ist, dass sämtliche Brennstäbe einer Kassette nur gemeinsam gesichert und entsichert werden können, so dass ein Austausch einzelner Brennstäbe aufwändig ist.Out DE 10 2006 038 149 A1 is a Brenngestellaufbau known, which is composed of several fuel racks. Each firing rack has two cassettes holding fuel rods. An extract safety device is provided, which ensures that the fuel rods are secured in the axial direction in the safety-off position. In a release position in which the cassettes are shifted from each other, the fuel rods can be removed from the cassettes. The disadvantage is that all fuel rods of a cassette can only be secured together and unlocked, so that an exchange of individual fuel rods is expensive.

Aufgabe der Erfindung ist es daher, ein Brennhilfsmittel zu schaffen, dessen Aufbau vereinfacht und dessen thermische Masse besser optimiert ist.The object of the invention is therefore to provide a kiln furniture whose structure is simplified and whose thermal mass is better optimized.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Hierdurch wird ein Brennhilfsmittel geschaffen, bei dem die Profile zusammen mit den in diese einsteckbaren Querstäben erster Art einen Stützrahmen bilden. Die erfindungsgemäßen Querstäbe bewirken dabei zusätzlich zu ihrer Funktion als Auflage für Brenngut bzw. Rohlinge eine Lagefixierung der Profile zueinander. Die Lagefixierung der Profile wird erreicht durch das Einbringen eines auf den Querstäben erster Art angeordneten Vorsprungs in den Hohlraum zwischen zwei Wände der doppelwandig ausgebildeten Seitenteile. Das Einbringen erfolgt durch Einstecken des auf den Querstäben erster Art endseitig ausgebildeten Vorsprungs in ein auf der innenstehenden Wand des Seitenteils vorgesehenes Langloch. Durch Absenken des Querstabs in den abwärtsgerichteten Verjüngungsabschnitt des Langlochs wird der Vorsprung fallenartig im Bereich des Verjüngungsabschnitts zwischen den zwei Wänden des Seitenteils positioniert. Auf diese Weise wird eine greifende axiale Lagefixierung zwischen den Querstäben erster Art und den Seitenteilen des Brennhilfsmittels geschaffen. Die greifende axiale Lagefixierung der Querstäbe erster Art bewirkt eine Stabilisierung des Stützrahmens, so dass auf zusätzliche die Seitenteile fest verbindende Elemente verzichtet werden kann. Der konstruktive Aufbau des erfindungsgemäßen Brennhilfsmittels ist daher vereinfacht und dessen thermische Masse verringert.As a result, a kiln furniture is created in which the profiles form a support frame together with the insertable into this crossbars of the first kind. The crossbars according to the invention in addition to their function as a support for kiln or blanks a positional fixation of the profiles to each other. The position fixation of the profiles is achieved by introducing a on the Cross bars of the first kind arranged projection in the cavity between two walls of the double-walled side parts. The introduction takes place by inserting the projection formed on the transverse rods of the first type into a slot provided on the inside wall of the side part. By lowering the cross bar into the downwardly tapered portion of the slot, the projection is positioned like a trap in the region of the taper portion between the two walls of the side part. In this way, a cross-axial positional fixation between the transverse bars of the first kind and the side parts of the kiln furniture is created. The cross-axial fixing of the cross bars of the first kind causes a stabilization of the support frame, so that it is possible to dispense with additional elements connecting the side parts firmly. The structural design of the kiln furniture according to the invention is therefore simplified and reduced its thermal mass.

Der abwärtsgerichtete Verjüngungsabschnitt bildet durch die schlüssellochförmige Ausbildung des Langlochs eine Vorzugslage für den eingesteckten Querstab erster Art. Diese Vorzugslage wird unter dem Eigengewicht des Querstabs erster Art eingenommen und beibehalten. Ein unbeabsichtigtes Lösen der axialen Lagefixierung wird so verhindert. Es wird eine innere Positionierung des Vorsprungs in dem Hohlraum des Seitenteils mittels eines Schlüssel-/Schlossprinzips realisiert.The downward tapered portion forms by the keyhole-shaped design of the slot a preferred position for the inserted cross bar first type. This preferred position is taken under the weight of the crossbar first type and maintained. Unintentional release of the axial positional fixation is prevented. An internal positioning of the projection in the cavity of the side part is realized by means of a key / lock principle.

Die innenstehende Wand kann Aufnahmen zum Einstecken von Querstäben zweiter Art aufweisen. Durch Vorsehen von Querstäben erster und zweiter Art mit unterschiedlichen Querschnittsprofilen können für das jeweils aufzulegende Brenngut angepasste Auflageflächen gebildet werden. Die Querstäbe erster Art können ein eckiges Querschnittsprofil aufweisen, wodurch eine axiale Drehung der Querstäbe erster Art im Verjüngungsabschnitt des Langlochs verhindert wird. Die Querstäbe zweiter Art weisen vorzugsweise ein rundes Querschnittsprofil auf, um ein axiale Drehung der Querstäbe zweiter Art im eingesteckten Zustand zu ermöglichen.The inner wall may have receptacles for inserting transverse bars of the second kind. By providing crossbars of the first and second type with different cross-sectional profiles, it is possible to form bearing surfaces adapted to the firing material to be mounted in each case. The cross bars of the first type may have a polygonal cross-sectional profile, whereby an axial rotation of the cross bars of the first type is prevented in the tapering portion of the slot. The crossbars of the second type preferably have a round cross-sectional profile in order to allow an axial rotation of the crossbars of the second type in the inserted state.

Vorzugsweise weisen die Querstäbe zweiter Art endseitig jeweils Vorsprünge auf, die axial in Eingriff bringbar sind mit der jeweiligen innenstehenden Wand des Seitenteils. Die Querstäbe zweiter Art bilden dann Stützstreben aus, die die Seitenteile in Querrichtung stabilisieren. Die Querstäbe zweiter Art können jeweils mit den einander zugewandten Innenseiten der innenstehenden Wände axial in Eingriff stehen. Die innenstehenden Wände sind dann zwischen den außenseitig angeordneten Vorsprüngen der Querstäbe erster Art und den innenseitig angeordneten Vorsprüngen der Querstäbe zweiter Art als Anschlägen lagefixiert, wodurch ein besonders stabiler Stützrahmen ausgebildet wird.Preferably, the transverse rods of the second type each end on projections which are axially engageable with the respective inner wall of the Side part. The transverse rods of the second type then form support struts, which stabilize the side parts in the transverse direction. The transverse rods of the second type can each be axially engaged with the mutually facing inner sides of the inner walls. The inner walls are then fixed in position between the projections arranged on the outside of the transverse rods of the first type and the projections arranged on the inside of the transverse rods of the second type as stops, whereby a particularly stable support frame is formed.

Die Vorsprünge der Querstäbe erster Art kann eine axiale Erstreckung aufweisen, die einer axialen Erstreckung des Hohlraums in Steckrichtung angepasst ist. Durch die Anpassung ist das axiale Spiel der Querstäbe erster Art in Steckrichtung einstellbar. Das axiale Spiel kann durch die Anpassung so eingestellt sein, dass eine formschlüssige axiale Lagefixierung der Querstäbe erster Art besteht.The projections of the transverse rods of the first type may have an axial extent, which is adapted to an axial extent of the cavity in the insertion direction. By adjusting the axial play of the cross bars of the first kind in the direction of insertion is adjustable. The axial clearance can be adjusted by the adjustment so that a positive axial positional fixation of the cross bars of the first kind exists.

Ferner kann ein Fixierelement vorgesehen sein, das zu einem in den Verjüngungsabschnitt abgesenkten Querstab erster Art in ein Langloch einsteckbar ist. Dadurch kann ein abgesenkter Querstab im Verjüngungsabschnitt des Langlochs fixiert werden. Durch Blockierung der Öffnung des Langlochs wird der hintergreifende Eingriff zwischen Querstab erster Art und Seitenteil für jeden Querstab einzeln gesichert. Zudem wird ein Formschluss in zur Steckrichtung im Wesentlichen senkrechter Richtung gebildet, so dass der Querstab in allen Raumrichtungen gesichert im Seitenteil aufgenommen ist. Dadurch kann das Brennhilfsmittel an den Querstäben getragen werden. Die Transportfähigkeit des Brennhilfsmittels ist somit verbessert.Furthermore, a fixing element may be provided which can be inserted into a slot to a transverse bar of the first type lowered into the narrowing section. As a result, a lowered transverse bar can be fixed in the tapering section of the oblong hole. By blocking the opening of the slot of the engaging engagement between cross bar first type and side part is secured individually for each cross bar. In addition, a positive connection is formed in the plug-in direction substantially perpendicular direction, so that the transverse bar is received in all spatial directions secured in the side part. As a result, the kiln furniture can be carried on the transverse bars. The transportability of the kiln furniture is thus improved.

Vorzugsweise ist das Fixierelement gegenüber einem in den Verjüngungsabschnitt abgesenkten Querstab erster Art und/oder dem zugehörigen Vorsprung des Querstabs mittels einer Stiftverbindung lösbar fixiert. Eine solche Stiftverbindung sichert das Fixierelement vor einer Verlagerung in Steckrichtung.Preferably, the fixing element is releasably fixed by means of a pin connection with respect to a transverse bar of the first type lowered in the narrowing section and / or the associated projection of the transverse bar. Such a pin connection secures the fixing element against a displacement in the insertion direction.

Das Seitenteil kann eine skelettartige Stützstruktur besitzen. Durch eine Skelettbauweise wird die Stabilität der Seitenteile erhöht und die filigrane Ausgestaltung reduziert zugleich die thermische Masse des Brennhilfsmittels.The side part may have a skeletal support structure. By a skeleton construction the stability of the side parts is increased and the filigree Design also reduces the thermal mass of the kiln furniture.

Die Stützstruktur kann vorzugsweise miteinander verstrebte, pfostenartige Tragelemente aufweisen, die übereinander stapelbar sind. Bei Stapelung der Brennhilfsmittel bilden die pfostenartigen Tragelemente Eckpfosten des Brenngestells aus, die eine kippsichere Stapelbarkeit gewährleisten und die auf das Brenngestell wirkenden Lasten eckseitig abtragen.The support structure may preferably have mutually braced, post-like support elements which are stackable. When stacking the kiln furniture form the post-like support elements corner posts of the fuel rack, which ensure a tip-proof stackability and remove the loads acting on the firing frame eckseitig.

Die Seitenteile, Querstäbe und Vorsprünge bestehen vorzugsweise aus einer Keramik, insbesondere aus einer technischen SiC-Keramik, wodurch sich Vorteile hinsichtlich Produktionsstandzeit und Dauerstandsfestigkeit ergeben. Geringere thermische Massen sind werkstoffbedingt möglich als auch formbedingt möglich.The side parts, cross bars and projections are preferably made of a ceramic, in particular of a technical SiC ceramic, resulting in advantages in terms of production life and fatigue life. Lower thermal masses are possible due to the material as well as shape-related possible.

Weitere Vorteile und Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen,Further advantages and embodiments of the invention will become apparent from the following description and the dependent claims,

Die Erfindung wird nachstehend anhand der in den beigefügten Abbildungen dargestellten Ausführungsbeispiele näher erläutert.

  • Fig. 1 zeigt schematisch eine perspektivische Ansicht zweier als stapelbare Kassetten ausgebildeter Brennhilfsmittel gemäß einem Ausführungsbeispiel der Erfindung,
  • Fig. 2 zeigt schematisch eine perspektivische Detailansicht des Brennhilfsmittels nach Fig. 1,
  • Fig. 3 zeigt schematisch eine Seitenansicht eines erfindungsgemäßen Brenngestells nach Fig. 1,
  • Fig. 4 zeigt schematisch eine weitere Seitenansicht eines erfindungsgemäßen Brenngestells nach Fig. 1,
  • Fig. 5 zeigt schematisch eine Detailansicht einer Querschnittsdarstellung eines Seitenteils eines Brennhilfsmittels nach Fig. 1 in der Ebene eines Querstabs zweiter Art,
  • Fig. 6 zeigt schematisch eine Detailansicht einer Querschnittsdarstellung eines Seitenteils eines Brennhilfsmittels nach Fig.1 in der Ebene eines Querstabs erster Art,
  • Fig. 7 zeigt schematisch eine geschnittene perspektivische Detailansicht eines Seitenteils eines Brennhilfsmittels nach Fig. 1 in der Ebene eines Querstabs erster Art,
  • Fig. 8 zeigt schematisch eine perspektivische Ansicht von drei gestapelten Brennhilfsmitteln gemäß einem zweiten Ausführungsbeispiel der Erfindung,
  • Fig. 9 zeigt schematisch eine perspektivische Detailansicht des erfindungsgemäßen Brenngestells nach Fig. 8,
  • Fig. 10 zeigt schematisch eine Seitenansicht des erfindungsgemäßen Brenngestells nach Fig. 8,
  • Fig. 11 zeigt schematisch eine perspektivische Ansicht eines Seitenteils eines Brennhilfsmittels gemäß dem zweiten Ausführungsbeispiel,
  • Fig. 12 zeigt schematisch eine Seitenansicht eines Seitenteils eines Brennhilfsmittels gemäß dem zweiten Ausführungsbeispiel,
  • Fig. 13 zeigt schematisch eine Schnittdarstellung eines Seitenteils gemäß dem zweiten Ausführungsbeispiel in der Schnittebene B-B gemäß Fig. 12.
The invention will be explained in more detail with reference to the embodiments illustrated in the accompanying drawings.
  • Fig. 1 shows schematically a perspective view of two stackable cassettes formed kiln furniture according to an embodiment of the invention,
  • Fig. 2 schematically shows a perspective detail view of the kiln furniture after Fig. 1 .
  • Fig. 3 schematically shows a side view of a burning frame according to the invention Fig. 1 .
  • Fig. 4 schematically shows a further side view of a burning frame according to the invention Fig. 1 .
  • Fig. 5 schematically shows a detailed view of a cross-sectional view of a side part of a kiln furniture after Fig. 1 in the plane of a crossbar of the second kind,
  • Fig. 6 schematically shows a detailed view of a cross-sectional view of a side part of a kiln furniture after Fig.1 in the plane of a crossbar of the first kind,
  • Fig. 7 schematically shows a sectioned perspective detail view of a side part of a kiln furniture after Fig. 1 in the plane of a crossbar of the first kind,
  • Fig. 8 shows schematically a perspective view of three stacked kiln furniture according to a second embodiment of the invention,
  • Fig. 9 schematically shows a perspective detail view of the burning frame according to the invention Fig. 8 .
  • Fig. 10 schematically shows a side view of the burning frame according to the invention Fig. 8 .
  • Fig. 11 schematically shows a perspective view of a side part of a kiln furniture according to the second embodiment,
  • Fig. 12 shows schematically a side view of a side part of a kiln furniture according to the second embodiment,
  • Fig. 13 schematically shows a sectional view of a side part according to the second embodiment in the sectional plane BB according to Fig. 12 ,

Fig. 1 zeigt zwei als stapelbare Kassetten ausgebildete Brennhilfsmittel 1 gemäß einem Ausführungsbeispiel der Erfindung. Die Brennhilfsmittel 1 dienen zur Aufnahme von Brenngut für das Brennen von Gegenständen in einem Ofen. Die Brennhilfsmittel 1 umfassen mindestens zwei zueinander beabstandete Seitenteile 2, 3, in die Querstäbe 4 erster Art zur lösbaren mechanischen Verbindung mit den Seitenteilen 2, 3 und als Auflagen für das Brenngut steckbar sind. Fig. 1 shows two trained as stackable cassettes kiln furniture 1 according to an embodiment of the invention. The kiln furniture 1 serve to receive fuel for burning objects in an oven. The kiln furniture 1 comprise at least two mutually spaced side parts 2, 3, in the transverse rods 4 of the first kind for releasable mechanical connection with the side parts 2, 3 and as supports for the fuel are pluggable.

Die mindestens zwei Seitenteile 2, 3 sind durch die Querstäbe 4 erster Art miteinander verbunden und können so einen Stützrahmen bilden. Die Verbindung zwischen Seitenteilen 2, 3 und den Querstäben 4 erster Art ist eine Steckverbindung. Bei der Steckverbindung verläuft die Steckrichtung vorzugsweise im Wesentlichen senkrecht zu den innenstehenden Wänden der Seitenteile 2, 3. Die Seitenteile 2, 3 bilden die Seitenwände des Stützrahmens.The at least two side parts 2, 3 are connected to each other by the cross bars 4 of the first kind and can thus form a support frame. The connection between side parts 2, 3 and the cross bars 4 of the first kind is a plug connection. In the plug connection, the plugging direction preferably extends substantially perpendicular to the inner walls of the side parts 2, 3. The side parts 2, 3 form the side walls of the support frame.

Die Seitenteile 2, 3 sind doppelwandig ausgebildet. Insbesondere können die Seitenteile 2, 3 Hohlprofile sein. Zur Materialeinsparung und zur Verringerung der thermischen Masse des Brennhilfsmittels 1 können die Seitenteile 2, 3 in Bereichen zwischen den Steckverbindungen Aussparungen 18 aufweisen. Bei als stapelbare Kassetten ausgebildeten Brennhilfsmitteln 1 weisen die Seitenteile 2, 3 vorzugsweise an ihrer Ober- und Unterseite Stapelflächen auf. Auf den Stapelflächen sind vorzugsweise Verbindungselemente 19, 20, insbesondere Verbindungselemente 19, 20 einer Nut-/Federverbindung, vorgesehen, die beim Stapeln der Kassetten in Eingriff gelangen. Die Stapelbarkeit der Kassetten wird so verbessert. Vorzugsweise ist vorgesehen, dass die Verbindungselemente der Nut-/Federverbindung auf mindestens zwei Stapelflächen eines Seitenteils 2, 3 unterschiedlich gerichtet angeordnet sind. Ein Verrutschen der gestapelten Kassetten gegeneinander wird so verhindert.The side parts 2, 3 are double-walled. In particular, the side parts 2, 3 may be hollow sections. To save material and to reduce the thermal mass of the kiln furniture 1, the side parts 2, 3 may have recesses 18 in areas between the connectors. When designed as a stackable cassettes kiln furniture 1, the side parts 2, 3 preferably on their top and bottom stacking surfaces. On the stacking surfaces preferably connecting elements 19, 20, in particular connecting elements 19, 20 of a tongue and groove connection are provided, which engage in stacking of the cassettes. The stackability of the cassettes is improved. It is preferably provided that the connecting elements of the tongue and groove connection are arranged differently directed on at least two stacking surfaces of a side part 2, 3. Slippage of the stacked cassettes against each other is thus prevented.

Die Fig. 2 zeigt eine Detailansicht eines erfindungsgemäßen Brennhilfsmittels 1 nach Fig. 1, die die Steckverbindung zwischen Seitenteilen 2, 3 und Querstäben 4 erster Art erläutert. Fig. 2 zeigt die Steckverbindung im eingesteckten und im gelösten Zustand. Die Seitenteile 2, 3 sind doppelwandig ausgebildet unter Einschluss eines Hohlraumes 5 für eine beidseitige mechanische Verankerung eingesteckter Querstäbe 4. An den Querstäben ist dazu jeweils mindestens ein Vorsprung 6 jeweils endseitig ausgebildet. Der Vorsprung 6 ist schlüsselartig in den zugehörigen Hohlraum 5 einsteckbar durch ein an der jeweils innenstehenden Wand 7, 8 des doppelwandigen Seitenteils 2, 3 vorgesehenes Langloch 9. Das Langloch weist einen abwärtsgerichteten Verjüngungsabschnitt 10 auf, in den ein Querstab 4 unter seinem Eigengewicht absenkbar ist. Dadurch ist der jeweilige Vorsprung 6 mit der jeweils innenstehenden Wand 7, 8 in einen hintergreifenden Eingriff bringbar.The Fig. 2 shows a detailed view of a kiln furniture 1 according to the invention Fig. 1 that explains the connector between side panels 2, 3 and 4 crossbars first type. Fig. 2 shows the plug connection in the inserted and in the released state. The side parts 2, 3 are double-walled with the inclusion of a cavity 5 for a mechanical anchoring on both sides inserted cross bars 4. At the cross bars to each at least one projection 6 is formed in each end. The projection 6 is key-like in the associated cavity 5 can be inserted through a provided on the respective inner wall 7, 8 of the double-walled side part 2, 3 slot 9. The slot has a downward taper portion 10, in which a cross bar 4 is lowered under its own weight , Thereby, the respective projection 6 with the respective inner wall 7, 8 can be brought into a engaging engagement.

Das in Fig. 1 dargestellte Seitenteil 2 weist insgesamt vier Langlöcher 9 auf, von denen zwei in Fig. 2 sichtbar sind. Die Langlöcher 9 weisen einen oberen, gegenüber dem abwärtsgerichteten Verjüngungsabschnitt 10 verbreiterten Einsteckabschnitt 21 auf. Einsteckabschnitt 21 und Verjüngungsabschnitt 10 sind miteinander verbunden und können sich in einzelnen Ausführungsformen auch überlappen. Das Langloch 9 ist dadurch schlüssellochförmig ausgebildet. Der Querschnitt des Einsteckabschnitts 21 ist vorzugsweise dem Querschnittsprofil des Querstabs 4 erster Art im Bereich des Vorsprungs 6 angepasst. Der Breite des Verjüngungsabschnitts ist vorzugsweise der Breite des Querstabs 4 erster Art angepasst, so dass ein in den Verjüngungsabschnitt abgesenkter Querstab 4 nur geringes horizontales Spiel hat.This in Fig. 1 shown side part 2 has a total of four slots 9, two of which in Fig. 2 are visible. The slots 9 have an upper, opposite the downward tapered portion 10 widened insertion portion 21. Insertion section 21 and tapering section 10 are connected to each other and may also overlap in individual embodiments. The slot 9 is characterized keyhole-shaped. The cross section of the insertion section 21 is preferably adapted to the cross-sectional profile of the transverse rod 4 of the first type in the region of the projection 6. The width of the tapering section is preferably adapted to the width of the transverse bar 4 of the first type, so that a transverse bar 4 lowered into the tapering section has only slight horizontal play.

Der Vorsprung 6 ist mit dem Querstab 4 erster Art im Bereich des Einsteckabschnitts 21 in das Seitenteil 2 einsteckbar. Der Vorsprung 6 kann eine axiale Erstreckung X aufweisen. Über diese Erstreckung X ist die Querschnittsfläche des Querstabs 4 durch den Vorsprung 6 vergrößert. Die durch den Vorsprung 6 vergrößerte Querschnittsfläche des Querstabes 4 nimmt beim Einstecken des Querstabs eine Teilfläche des Einsteckabschnittes 21 ein. Bei eingestecktem Querstab 4 ist der Vorsprung 6 in dem Hohlraum 5 des doppelwandigen Profils 2 positioniert. Der Querstab 4 ist dann absenkbar in den Verjüngungsabschnitt 10 des Langlochs 9. Dadurch wird der Vorsprung 6 mit hintergreifendem Eingriff zwischen den Wänden des doppelwandigen Seitenteils 2 positioniert.The projection 6 can be inserted with the transverse bar 4 of the first type in the region of the insertion section 21 in the side part 2. The projection 6 may have an axial extent X. About this extension X, the cross-sectional area of the cross bar 4 is increased by the projection 6. The enlarged by the projection 6 cross-sectional area of the transverse bar 4 takes on insertion of the cross bar a part of the Einsteckabschnittes 21 a. When inserted cross bar 4, the projection 6 is positioned in the cavity 5 of the double-walled profile 2. The cross bar 4 is then lowered into the taper portion 10 of the slot 9. As a result, the projection 6 is positioned with engagement behind engagement between the walls of the double-walled side part 2.

Der hintergreifende Eingriff des Vorsprungs 6 im Hohlraum 5 greift in Steckrichtung. Der Eingriff wirkt dabei zwischen den Endseiten des Vorsprungs 6 und inneren Randbereichen des doppelwandigen Seitenteils 2 eingebrachten Langlochs 5 im Bereich des Verjüngungsabschnitts 10. Der hintergreifende Eingriff der Steckverbindung wird demnach durch eine Steck-Rast-Bewegung erzielt. Bei dieser Steck-Rast-Bewegung erfolgt auf die Steckbewegung des Querstabs 4 erster Art eine vorzugsweise im Wesentlichen senkrecht dazu ausgeführte Rastbewegung, durch die der Querstab 4 in den Verjüngungsabschnitt 10 abgesenkt wird. Die Querschnittsfläche des Verjüngungsabschnitts 10 wird vorzugsweise durch die Querschnittsfläche des Querstabs 4 im Wesentlichen ausgefüllt.The engaging engagement of the projection 6 in the cavity 5 engages in the insertion direction. The engagement acts between the end faces of the projection 6 and inner edge regions of the double-walled side part 2 introduced slot 5 in the region of the taper portion 10. The engaging engagement of the connector is thus achieved by a plug-and-catch movement. In this plug-latching movement is carried out on the insertion movement of the cross bar 4 of the first kind a preferably substantially perpendicular thereto executed latching movement, by which the cross bar 4 is lowered into the tapering section 10. The cross-sectional area of the tapering section 10 is preferably substantially filled by the cross-sectional area of the transverse bar 4.

Der Vorsprung 6 steht auf mindestens einer Seite des Querstabs 4 erster Art vor. Vorzugsweise ist der Vorsprung 6 einteilig mit dem Querstab 4 ausgebildet. Der Vorsprung 6 kann auch auf dem Querstab 4 fixiert sein. Der in Fig. 2 dargestellte Vorsprung 6 steht an drei Seiten des Querstabs vor und vergrößert dessen Breite auf zwei gegenüberliegenden Seiten. Der Vorsprung 6 kann jedoch auch nur einseitig zur Vergrößerung der Breite des Querstabs 4 aufgebracht sein.The projection 6 protrudes on at least one side of the cross bar 4 of the first kind. Preferably, the projection 6 is formed integrally with the transverse bar 4. The projection 6 may also be fixed on the transverse bar 4. The in Fig. 2 projection 6 shown protrudes on three sides of the cross bar and increases its width two opposite sides. However, the projection 6 can also be applied only on one side to increase the width of the cross bar 4.

Vorzugsweise sind die Langlöcher 9 zumindest in einem Seitenteil 2, 3 als Durchgangsöffnungen ausgebildet. Die Querstäbe 4 sind dann von einer äußeren Seite durch ein Seitenteil 2, 3 durchsteckbar. Dadurch sind die Querstäbe 4 in das Brennhilfsmittel 1 einzeln einsetzbar und austauschbar.Preferably, the slots 9 are formed at least in a side part 2, 3 as through holes. The cross bars 4 are then pushed through from an outer side by a side part 2, 3. As a result, the transverse rods 4 can be used individually and exchanged in the kiln furniture 1.

Es kann mindestens ein Fixierelement 16 vorgesehen sein, das zu einem in den Verjüngungsabschnitt 10 abgesenkten Querstab 4 in ein Langloch 9 derart einsteckbar ist, dass der abgesenkte Querstab 4 in dem Verjüngungsabschnitt 10 fixiert ist. Gemäß dem in den Figuren dargestellten Ausführungsbeispiel ist für jedes Langloch 9 ein Fixierelement 16 vorgesehen. Es können jedoch auch mehrere Fixierelemente 16 pro Langloch 9 vorgesehen sein. Der Querschnitt des Fixierelements 16 ist vorzugsweise dem Querschnitt des Einsteckabschnitts 21 angepasst. Das Fixierelement 16 kann so die Durchgangsöffnung im Bereich des Einsteckabschnitts 21 blockieren. Durch das Blockieren des Einsteckabschnittes 21 kann das eingesteckte Fixierelement 16 eine Verlagerung des Querstabs 4 aus dem Verjüngungsabschnitt 10 in den Einsteckabschnitt 21 verhindern. Der durch das Fixierelement 16 bewirkte mechanische Eingriff zwischen Querstab 4, Fixierelement 16 und Seitenteil 2, 3 wirkt in Rastrichtung der Schiebe-Rast-Bewegung.At least one fixing element 16 may be provided, which can be inserted into a slot 9 in such a way as to be lowered into the narrowing section 10 in such a way that the lowered transverse bar 4 is fixed in the narrowing section 10. According to the embodiment shown in the figures, a fixing element 16 is provided for each slot 9. However, it can also be provided several fixing elements 16 per slot 9. The cross section of the fixing element 16 is preferably adapted to the cross section of the insertion section 21. The fixing element 16 can thus block the passage opening in the region of the insertion section 21. By blocking the insertion section 21, the inserted fixing element 16 can prevent a displacement of the transverse rod 4 from the tapering section 10 into the insertion section 21. The effected by the fixing element 16 mechanical engagement between transverse bar 4, fixing element 16 and side part 2, 3 acts in the latching direction of the sliding-latching movement.

Das Fixierelement 16 ist vorzugsweise im Querschnitt des Langlochs 9 so angepasst, dass es das Langloch 9 bei einem in den Verjüngungsabschnitt 10 abgesenkten Querstab 4 weitgehend verschließt. Insbesondere blockiert das Fixierelement 16 den Einsteckabschnitt 21 des Langlochs 9.The fixing element 16 is preferably adapted in cross-section of the slot 9 so that it largely closes the oblong hole 9 at a cross bar 4 lowered into the taper section 10. In particular, the fixing element 16 blocks the insertion section 21 of the slot 9.

Die innenstehende Wand 7, 8 kann Aufnahmen 11 zum Einstecken von Querstäben 12 einer zweiten Art aufweisen, wobei die Querstäbe 4 erster Art und die Querstäbe 12 zweiter Art unterschiedliche Querschnittsprofile aufweisen. Vorzugsweise weisen die Querstäbe 4 erster Art ein eckiges Querschnittsprofil und die Querstäbe 12 zweiter Art ein rundes Querschnittsprofil auf. Der Querschnitt der Querstäbe 4 ist vorzugsweise vieleckig, insbesondere rechteckig, und besonders bevorzugt quadratisch. Die Querstäbe 4, 12 erster Art und zweiter Art sind vorzugsweise als Hohlstäbe ausgebildet. Anstelle von Hohlstäben können auch (Voll-)Balken oder Profile als Querstäbe eingesetzt werden.The inner wall 7, 8 can have receptacles 11 for inserting transverse bars 12 of a second type, the transverse bars 4 of the first type and the transverse bars 12 of the second type having different cross-sectional profiles. The transverse rods 4 of the first type preferably have a polygonal cross-sectional profile and the transverse rods 12 of the second type have a round cross-sectional profile. The cross section of the transverse rods 4 is preferably polygonal, in particular rectangular, and particularly preferably square. The transverse rods 4, 12 of the first type and the second type are preferably designed as hollow rods. Instead of hollow bars and (solid) beams or profiles can be used as cross bars.

Gemäß Fig. 2 bis 4 kann vorgesehen sein, dass die Querstäbe 12 zweiter Art gegenüber den Querstäben 4 erster Art eine Zwischenablage für Brenngut bereitstellen. Die Aufnahmen 11 für die Querstäbe 12 zweiter Art sind dazu in vertikaler Richtung gegenüber den Langlöchern 9 in den Seitenteilen 2, 3 versetzt angeordnet. Auch ein horizontaler Versatz zwischen den Aufnahmen 11 und den Langlöchern 9 kann vorgesehen sein um unterschiedliche, der Größe des aufzulegenden Brennguts angepasste Auflageflächen bereitzustellen. Die durch den vertikalen Versatz erzeugten Abstände der durch die Querstäbe 4, 12 gebildeten Auflagen sind vorzugsweise, wie in Fig. 4 gezeigt, äquidistant, können jedoch auch verschieden gewählt sein.According to Fig. 2 to 4 It can be provided that the cross bars 12 of the second type provide a clipboard for kiln material relative to the transverse bars 4 of the first type. The receptacles 11 for the transverse rods 12 of the second type are arranged offset in the vertical direction with respect to the oblong holes 9 in the side parts 2, 3. Also, a horizontal offset between the receptacles 11 and the slots 9 may be provided to provide different, the size of the aufgegenden firing material adapted bearing surfaces. The distances created by the vertical offset of the supports formed by the transverse rods 4, 12 are preferably, as in Fig. 4 shown, equidistant, but can also be chosen differently.

Die Querstäbe 12 zweiter Art können endseitig jeweils Vorsprünge 13 aufweisen, die axial in Eingriff bringbar sind mit der jeweiligen innenstehenden Wand 7, 8 des Seitenteils 2, 3 unter Ausbildung einer Stützstrebe zur Querstabilisierung der Seitenteile 2, 3 zueinander. Die jeweils endseitig vorgesehenen Vorsprünge 13 können, wie in Fig. 4, gezeigt einstückig ausgebildet sein und sich über den Bereich zwischen den Seitenteilen 2, 3 erstrecken.The crossbars 12 of the second type may each end projections 13 which are axially engageable with the respective inner wall 7, 8 of the side part 2, 3 to form a support strut for lateral stabilization of the side parts 2, 3 to each other. The respective end projections 13 may, as in Fig. 4 , shown integrally formed and extend over the area between the side parts 2, 3.

Die Vorsprünge 13 der Querstäbe 12 zweiter Art stehen vorzugsweise jeweils mit den einander zugewandten Innenseiten 14, 15 der innenstehenden Wände 7, 8 axial in Eingriff bringbar. Wie Fig. 4 und 5 zeigen, bilden die Vorsprünge 13 dann Anschläge für die einander zugewandten Innenseiten 14, 15 der innenstehenden Wände 7, 8.The projections 13 of the transverse rods 12 of the second type are preferably in each case axially engageable with the mutually facing inner sides 14, 15 of the inner walls 7, 8. As Fig. 4 and 5 show the projections 13 then stops for the facing inner sides 14, 15 of the inner walls 7, 8th

Vorzugsweise sind die Aufnahmen 11, wie in Fig. 5 gezeigt, als Durchgangsöffnungen in den Seitenteilen 2, 3 ausgebildet. Der Querschnitt der Durchgangsöffnungen ist dann vorzugsweise dem Querschnitt der Querstäbe 12 zweiter Art angepasst mit einem Erweiterungsabschnitt 25 als Durchlass für die Vorsprünge 13 in einer axialen Orientierung der Querstäbe 12. Die Vorsprünge 13 sind dann zwischen den zwei Seitenteilen 2, 3 durch Einstecken von außen positionierbar. Durch axiale Drehung des Querstabs 12 können die Vorsprünge 13 mit den einander zugewandten Innenseiten 14, 15 der innenstehenden Wände 7, 8 axial in Eingriff gebracht werden.Preferably, the receptacles 11, as in Fig. 5 shown formed as passage openings in the side parts 2, 3. The cross section of the passage openings is then preferably adapted to the cross section of the transverse rods 12 of the second type with an extension section 25 as the passage for the projections 13 in an axial orientation of the transverse rods 12. The projections 13 are then positioned between the two side parts 2, 3 by insertion from the outside. By axial rotation of the cross bar 12, the projections 13 with the mutually facing inner sides 14, 15 of the inner walls 7, 8 are axially brought into engagement.

Fig. 5 zeigt einen Querschnitt durch die Verbindung eines Querstabs 12 zweiter Art mit einem Seitenteil 2. Die Aufnahme 11 ist als Durchgangsöffnung ausgebildet. Sie ist dem Querschnitt des Querstabs 12 angepasst und weist einen Durch Fig. 5 shows a cross section through the connection of a cross bar 12 of the second type with a side part 2. The receptacle 11 is formed as a passage opening. It is adapted to the cross section of the cross bar 12 and has a through

Fig. 6 und 7 zeigen einen Vorsprung 6, dessen axiale Erstreckung X der Erstreckung des Hohlraums 5 in Steckrichtung angepasst ist zur Lagefixierung des Querstabs 4 in Steckrichtung. In diesem Fall verbleibt nur ein geringes Spiel des Querstabs 4 in Steckrichtung. Der Vorsprung 6 kann so formschlüssig im Hohlraum 5 aufgenommen sein. Im Formschluss bilden die Wände des doppelwandigen Profils Anschläge für den Vorsprung 6 bei axialer Bewegung des Querstabs 4. Durch die Anpassung kann eine greifende Lagefixierung der Querstäbe 4 in axialer Richtung erreicht werden. 6 and 7 show a projection 6, the axial extent X of the extension of the cavity 5 is adapted in the insertion direction for fixing the position of the cross bar 4 in the insertion direction. In this case, only a small clearance of the cross bar 4 remains in the insertion direction. The projection 6 may be received in a form-fitting manner in the cavity 5. In the form-fitting form the walls of the double-walled profile stops for the projection 6 during axial movement of the cross bar 4. By adjusting a cross-positional fixing of the transverse rods 4 can be achieved in the axial direction.

Wie in Fig. 6 und 7 gezeigt können die Langlöcher 9 mit einer sich zwischen den Wänden des doppelwandigen Seitenteils 2 erstreckenden Bodenfläche 23 ausgebildet sein. Die Bodenfläche 23 bildet eine Auflage für den in den Verjüngungabschnitt 10 abgesenkten Querstab 4. Die Last des Querstabs 4 wird in die Bodenfläche 23 eingeleitet und über die Wände des Seitenteils 2 abgeleitet. Vorzugsweise weist die Bodenfläche 23 mindestens eine sich im Wesentlichen quer zur Steckrichtung der Querstäbe 4 erstreckende Erhebung 24 auf. Der Querstab 4 liegt vorzugsweise auf der Scheitellinie der mindestens einen Erhebung 24 auf, wodurch sich eine definierte Linienlast ergibt. In dem gezeigten Ausführungsbeispiel sind zwei parallel sich erstreckende Erhebungen 24 vorgesehen, die wulstartig ausgebildet sind. Die Auflage kann auch als Auflagefläche ausgebildet sein, die eine Teilfläche der Bodenfläche 23 bildet. Durch die flächige Krafteinleitung können auch hohe Lasten flächig verteilt aufgenommen werden.As in 6 and 7 shown, the slots 9 may be formed with an extending between the walls of the double-walled side part 2 bottom surface 23. The bottom surface 23 forms a support for the lowered in the tapered portion 10 transverse bar 4. The load of the cross bar 4 is introduced into the bottom surface 23 and discharged through the walls of the side part 2. Preferably, the bottom surface 23 has at least one elevation 24 extending essentially transversely to the direction of insertion of the transverse rods 4. The transverse bar 4 is preferably located on the apex line of the at least one elevation 24, resulting in a defined line load. In the embodiment shown, two parallel extending elevations 24 are provided which are formed like a bead. The support may also be designed as a bearing surface, which forms a partial surface of the bottom surface 23. Due to the extensive force application, even high loads can be absorbed over a wide area.

Wie in Fig. 6 und 7 dargestellt kann das mindestens eine Fixierelement 16 im eingesteckten Zustand gegenüber einem in den Verjüngungsabschnitt 10 abgesenkten Querstab 4 erster Art und/oder dem zugehörigen Vorsprung 6 mittels einer Stiftverbindung 17 lösbar fixierbar sein. Für die Stiftverbindung 17 ist vorzugsweise auf einer Unterseite des Fixierelements 16 ein Stift vorgesehen, der im eingesteckten Zustand des Fixierelements 16 mit einer Ausnehmung auf einer Oberseite des Vorsprungs 6 oder des Querstabs 4 in Eingriff steht. Die Stiftverbindung 17 ist vorzugsweise mittig auf der Kontaktfläche zwischen Fixierelement 16 und Vorsprung 6 bzw. Querstab 4 angeordnet. Zum Einstecken und Lösen des Fixierelements 16 weist das Fixierelement 16 vorzugsweise eine Öffnung 22 zur Aufnahme eines Werkzeugs auf. Mit Hilfe des Werkzeugs kann das Fixierelement 16 beim Einstecken bzw. Lösen des Fixerelements 16 angehoben werden, wodurch die Stiftverbindung 17 außer Eingriff gebracht wird. Dazu weist das Fixierelement 11 gegenüber dem Langloch 9 vorzugsweise ein ausreichendes Spiel auf. Die Stiftverbindung 17 kann mehrere Stifte und Ausnehmungen umfassen, die auf der Kontaktfläche von Fixierelement 16 und Vorsprung 6 bzw. Querstab 4 verteilt angeordnet sind.As in 6 and 7 illustrated, the at least one fixing element 16 in the inserted state against a lowered in the taper portion 10 transverse bar 4 first type and / or the associated projection 6 by means of a pin connection 17 can be releasably fixed. For the pin connection 17, a pin is preferably provided on an underside of the fixing element 16 which engages in the inserted state of the fixing element 16 with a recess on an upper side of the projection 6 or the cross bar 4. The pin connection 17 is preferably arranged centrally on the contact surface between fixing element 16 and projection 6 or transverse bar 4. For insertion and release of the fixing element 16, the fixing element 16 preferably has an opening 22 for receiving a tool. With the aid of the tool, the fixing element 16 can be raised during the insertion or release of the fixing element 16, whereby the pin connection 17 is disengaged. For this purpose, the fixing element 11 preferably has a sufficient clearance with respect to the slot 9. The pin connection 17 may comprise a plurality of pins and recesses which are arranged distributed on the contact surface of the fixing element 16 and the projection 6 or transverse bar 4.

Fig. 8 zeigt drei zu einem Brenngestell aufeinander gestapelte Brennhilfsmittel 1 gemäß einem zweiten Ausführungsbeispiel der Erfindung. Fig. 8 shows three stacked to a firing kiln kiln furniture 1 according to a second embodiment of the invention.

Die in Fig. 8 dargestellten Brennhilfsmittel 1 unterscheiden sich von dem ersten Ausführungsbeispiel durch die Ausbildung der Seitenteile 2, 3. Gemäß dem zweiten Ausführungsbeispiel besitzen die Seitenteile 2, 3 eine skelettartige Stützstruktur. Die Stützstruktur der Seitenteile 2, 3 weist vorzugsweise miteinander verstrebte, pfostenartige Tragelementen 30, 31 auf, die übereinander stapelbar sind.In the Fig. 8 illustrated kiln furniture 1 differ from the first embodiment by the formation of the side parts 2, 3. According to the second embodiment, the side parts 2, 3 have a skeletal support structure. The support structure of the side parts 2, 3 preferably has mutually braced, post-like support elements 30, 31, which are stackable.

In den pfostenartigen Tragelementen 30, 31 sind Langlöcher 9 zur Aufnahme der Querstäbe 4 erster Art vorgesehen. Die Steckverbindung zwischen den Seitenteilen 2, 3 und den Querstäben 4 erster Art (vgl. Fig. 9), bei der ein Vorsprung 6 des Querstabs 4 nach einem Schlüssel-/Schloss-Prinzip in einem Hohlraum des doppelwandigen Seitenteils 2, 3 positioniert wird, ist analog dem ersten Ausführungsbeispiel ausgebildet. Wie in Fig. 8 und 9 dargestellt, weisen die Seitenteile 2, 3 vorzugsweise beide Wände des doppelwandigen Seitenteils 2, 3 durchbrechende Langlöcher 9 auf. Die Querstäbe 4 können dann endseitig von den Seitenteilen 2, 3 vorstehen zur Auflage von zusätzlichen Platten 34 für die Lagerung von Brenngut.In the post-like support members 30, 31 slots 9 are provided for receiving the cross bars 4 of the first kind. The plug connection between the side parts 2, 3 and the transverse bars 4 of the first kind (see. Fig. 9 ), in which a projection 6 of the cross bar 4 is positioned according to a key / lock principle in a cavity of the double-walled side part 2, 3, is analogous to the first Embodiment formed. As in 8 and 9 shown, the side parts 2, 3 preferably both walls of the double-walled side part 2, 3 by breaking through slots 9. The transverse rods 4 can then project from the side parts 2, 3 at the ends for the support of additional plates 34 for the storage of fuel.

Fig. 10 zeigt eine Seitenansicht des Brenngestells gemäß Fig. 8 mit mehreren Brennhilfsmitteln 1. Abstandselemente 33 sind vorgesehen für eine Höhenbeabstandung einzelner Brennhilfsmittel 1 zueinander. Die Abstandselemente 33 sind eingebracht zwischen den pfostenartigen Tragelementen 30, 31 benachbarter Brennhilfsmittel 1, beispielsweise zwischen den oberen beiden Brennhilfsmitteln. Die pfostenartigen Tragelemente 30, 31 können auch unmittelbar aufeinander gestapelt werden, wie beispielsweise für die unteren beiden Brennhilfsmittel gezeigt. Fig. 10 shows a side view of the burning frame according to Fig. 8 with a plurality of kiln furniture 1. Spacers 33 are provided for a height spacing of individual kiln furniture 1 to each other. The spacer elements 33 are introduced between the post-like support elements 30, 31 of adjacent kiln furniture 1, for example between the upper two kiln furniture. The post-like support elements 30, 31 can also be stacked directly on each other, as shown for example for the lower two kiln furniture.

Durch die wahlweise Einbringung von Abstandselementen 33 ist die Höhenbeabstandung der Querstäbe 4 erster Art der gestapelten Brennhilfsmittel 1 einstellbar. Dadurch wird ein Brenngestell mit einem höheren Flexibilisierungsgrad geschaffen, bei dem die Höhe des Gestells und die Höhenabstände zwischen den Querstäben 4 an die produktabhängigen Höhenunterschiede des Brennguts anpassbar sind. Vorteilhaft ist, dass als Abstandselemente 33 kostengünstige, feuerfeste Bauteile in Pfostenform, wie beispielsweise grobkeramische zylindrische Hülsen, eingesetzt werden können, die im Bedarfsfall zwischen den pfostenartigen Tragelementen 30, 31 der gestapelten Brennhilfsmittel 1 positioniert werden.By the optional introduction of spacer elements 33, the height spacing of the transverse rods 4 of the first type of stacked kiln furniture 1 is adjustable. As a result, a firing frame is created with a higher degree of flexibility, in which the height of the frame and the height distances between the transverse rods 4 are adaptable to the product-dependent height differences of the combustible. It is advantageous that as spacers 33 cost-effective, refractory components in post form, such as coarse ceramic cylindrical sleeves, can be used, which are positioned in case of need between the post-like support members 30, 31 of the stacked kiln furniture 1.

Vorzugsweise sind auf als Stapelflächen 28, 29 ausgebildeten Endflächen der pfostenartigen Tragelemente 30, 31 Verbindungselemente 19a, 19b vorgesehen, die beim Stapeln der Tragelemente 30, 31 in Eingriff gelangen und die die Tragelemente 30, 31 zueinander positionieren. Besonders bevorzugt sind die Verbindungselemente 19a, 19b, wie in Fig. 11 dargestellt, der Querschnittskontur der Abstandselemente 33 angepasst, so dass diese auch eine Positionierung der Abstandselemente 33 in Bezug auf die Tragelemente 30, 31 ermöglichen. Insbesondere können die Verbindungselemente 19a, 19b als eine ringförmige Erhebung bzw. Vertiefung auf den Stapelflächen 28, 29 ausgebildet sein, die sowohl unmittelbar zueinander als auch mit hülsenartigen, zylinderförmigen Abstandselementen 33 in Eingriff bringbar sind.Preferably, connecting elements 19a, 19b are provided on end surfaces of the post-like support elements 30, 31 formed as stacking surfaces 28, 29, which engage in stacking of the support elements 30, 31 and which position the support elements 30, 31 relative to one another. Particularly preferred are the connecting elements 19a, 19b, as in Fig. 11 illustrated, the cross-sectional contour of the spacer elements 33 adapted so that they also allow positioning of the spacer elements 33 with respect to the support members 30, 31. In particular, the connecting elements 19a, 19b as an annular elevation or depression on the stacking surfaces 28, 29 may be formed, which are both directly to each other and with sleeve-like, cylindrical spacers 33 are engageable.

Wie insbesondere in Fig. 11 und 12 dargestellt, weist die Verstrebung 32 der pfostenartigen Tragelemente 30, 31 vorzugsweise eine Fachwerkstruktur auf. Insbesondere kann eine räumliche Fachwerkstruktur vorgesehen sein, wodurch die Tragelemente 30, 31 gegenüber einwirkenden Lasten und Momenten in allen Raumrichtungen zueinander abgestützt sind. Vorzugsweise weist die räumliche Fachwerkstruktur einen zentralen, zwischen den Tragelementen 30, 31 angeordneten Knoten 36 auf.As in particular in Fig. 11 and 12 illustrated, the strut 32 of the post-like support members 30, 31 preferably has a truss structure. In particular, a spatial truss structure can be provided, whereby the support elements 30, 31 are supported relative to acting loads and moments in all spatial directions to each other. The spatial truss structure preferably has a central node 36 arranged between the support elements 30, 31.

Wie in Fig. 11 und Fig. 13 gezeigt, sind die Tragelemente 30, 31 vorzugsweise als hohle Säulenkörper ausgebildet. Die Deckflächen der Tragelemente 30, 31 können Öffnungen 35 aufweisen. Die Tragelemente 30, 31 können einen runden oder mehreckigen Querschnitt aufweisen.As in Fig. 11 and Fig. 13 shown, the support members 30, 31 are preferably formed as a hollow column body. The top surfaces of the support elements 30, 31 may have openings 35. The support elements 30, 31 may have a round or polygonal cross-section.

Im Übrigen gelten die Ausführungen zum ersten Ausführungsbeispiel für das zweite Ausführungsbeispiel entsprechend.Otherwise, the comments on the first exemplary embodiment for the second exemplary embodiment apply accordingly.

Gemäß einem nicht dargestellten Ausführungsbeispiel können die pfostenartigen Tragelemente zusätzlich Aufnahmen zum Einstecken von Querstäben zweiter Art aufweisen.According to an embodiment not shown, the post-like support elements may additionally comprise receptacles for the insertion of transverse bars of the second type.

Die Seitenteile 2, 3 können in einem 3D-Druckverfahren hergestellt sein.The side parts 2, 3 can be produced in a 3D printing process.

Die Seitenteile 2, 3, die Querstäbe 4, 12 und die Vorsprünge 6, 13 des Brennhilfsmittels bestehen vorzugsweise aus einer Keramik. Auch die Fixierelemente 16 bestehen vorzugsweise aus Keramik. Bei Verwendung von keramischen Werkstoffen sind die Vorsprünge 6, 13 vorzugsweise auf die Querstäbe 4, 12 garniert. Die Keramik ist vorzugsweise eine SiC-Keramik. Die erfindungsgemäße Lagefixierung der Querstäbe ermöglicht eine optimale Kombination aus notwendigem keramischen Freiheitsgrad (z.B. Berücksichtigung von thermischen Dehnungen in der Anwendung) bei gleichzeitig hohem Maß an Steifigkeit des transportablen sowie stapelfähigen Aufbaus. Als Werkstoffe für das Brennhilfsmittel sind insbesondere auch die folgenden Werkstoffe verwendbar: siliziuminfiltriertes, reaktionsgebundenes SiC (RBSiC); siliziertes, rekristallisiertes SiC (SiSiC); rekristallisiertes SiC (RSiC); siliziumnitrid-gebundenes SiC (NSiC); drucklos gesintertes SiC (SSiC); flüssigphasengesintertes SiC (SSiC); Silicatisch-gebundenes SiC. Als alternative Werkstoffe sind einsetzbar: Mullit-gebundenes Al2O3; Korund; Silimanit; Al2O3; Zirkon-silikatisch; Codierit/Mullit.The side parts 2, 3, the transverse rods 4, 12 and the projections 6, 13 of the kiln furniture are preferably made of a ceramic. The fixing elements 16 are preferably made of ceramic. When using ceramic materials, the projections 6, 13 are preferably garnished on the transverse rods 4, 12. The ceramic is preferably a SiC ceramic. The positional fixing of the cross bars according to the invention enables an optimal combination of necessary ceramic degree of freedom (eg consideration of thermal strains in the application) with simultaneously high degree of rigidity of the transportable and stackable construction. In particular, the following materials can also be used as materials for the kiln furniture: silicon-infiltrated, reaction-bonded SiC (RBSiC); siliconized, recrystallized SiC (SiSiC); recrystallized SiC (RSiC); silicon nitride bonded SiC (NSiC); pressureless sintered SiC (SSiC); liquid phase sintered SiC (SSiC); Silica-bound SiC. Suitable alternative materials are: mullite-bound Al 2 O 3; Corundum; sillimanite; Al2O3; Zirconium silicate; Cordierite / mullite.

Claims (15)

  1. Firing aid for receiving firing material for the firing of objects in a furnace, having at least two side parts (2, 3) which are spaced apart from one another and into which transverse rods (4) of a first type are able to be plugged for the releasable mechanical connection to the side parts (2, 3) and as supports for the firing material, characterized in that the side parts (2, 3) are formed in a double-walled manner, with the inclusion of a cavity (5), for mechanical anchoring, on both sides, of inserted transverse rods (4), on which there is formed for this purpose in each case at least one projection (6) in each case at an end side, which is able to be inserted in a key-like manner into the associated cavity (5) through a slot (9) which is provided on the in each case inwardly situated wall (7, 8) of the double-walled side part (2, 3) and which has a downwardly directed tapering portion (10) into which a transverse rod (4) is able to be lowered under its own weight such that the respective projection (6) is able to be brought into engagement behind the in each case inwardly situated wall (7, 8).
  2. Firing aid according to Claim 1, characterized in that the inwardly situated wall (7, 8) has receptacles (11) for the insertion of transverse rods (12) of a second type, wherein the transverse rods (4) of a first type and the transverse rods (12) of a second type have different cross-sectional profiles.
  3. Firing aid according to either of Claims 1 and 2, characterized in that the transverse rods (4) of a first type have a rectangular cross-sectional profile, and the transverse rods (12) of a second type have a circular cross-sectional profile.
  4. Firing aid according to one of Claims 1 to 3, characterized in that, compared with the transverse rods (4) of a first type, the transverse rods (12) of a second type provide an intermediate depository for firing material.
  5. Firing aid according to one of Claims 1 to 4, characterized in that the transverse rods (12) of a second type each have, at an end side, projections (13) which are able to be brought axially into engagement with the respective inwardly situated wall (7, 8) of the side part (2, 3), with the formation of a support strut for transverse stabilization of the side parts (2, 3) with respect to one another.
  6. Firing aid according to one of Claims 1 to 5, characterized in that the projections (13) of the transverse rods (12) of a second type are each able to be brought axially into engagement with the inner sides (14, 15), facing one another, of the inwardly situated walls (7, 8).
  7. Firing aid according to one of Claims 1 to 6, characterized in that the projection (6) has, in the plugging direction, an extent (X) which is matched to an extent of the cavity (5) in the plugging direction for the positional fixing of the transverse rods (4) in the plugging direction.
  8. Firing aid according to one of Claims 1 to 7, characterized in that there is provided for each slot (9) at least one fixing element (16), which, in relation to a transverse rod (4) lowered into the tapering portion (10), is able to be inserted into the slot (9) such that the transverse rod (4) is fixed in the tapering portion (10).
  9. Firing aid according to Claim 8, characterized in that, in the inserted state, the fixing element (16) is able to be releasably fixed with respect to a transverse rod (4) lowered into the tapering portion (10) and/or the associated projection (6) by means of a pin-type connection (17).
  10. Firing aid according to one of Claims 1 to 9, characterized in that the side parts (2, 3) are formed as cassette walls which are able to be stacked one above the other.
  11. Firing aid according to Claim 10, characterized in that the side parts (2, 3) have, on their top and bottom sides, stacking surfaces (28, 29) on which connection elements (19a, 19b, 20a, 20b) of a groove/tongue connection are provided and come into engagement when the cassette walls are stacked.
  12. Firing aid according to Claim 11, characterized in that the connection elements (19a, 19b, 20a, 20b) of the groove/tongue connection are arranged on at least two stacking surfaces (28, 29) of a side part (2, 3) so as to be differently directed.
  13. Firing aid according to one of Claims 1 to 12, characterized in that the side part (2, 3) has a skeleton-like support structure.
  14. Firing aid according to Claim 13, characterized in that the support structure has post-like bearing elements (30, 31) which are braced against one another and are able to be stacked one above the other.
  15. Firing frame having firing aids according to one of Claims 1 to 14, characterized in that spacers (33) are provided for vertical spacing-apart of individual firing aids (1) from one another.
EP17001417.9A 2016-08-26 2017-08-22 Burning kit Active EP3287727B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016010228.4A DE102016010228A1 (en) 2016-08-26 2016-08-26 kiln furniture

Publications (2)

Publication Number Publication Date
EP3287727A1 EP3287727A1 (en) 2018-02-28
EP3287727B1 true EP3287727B1 (en) 2019-03-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17001417.9A Active EP3287727B1 (en) 2016-08-26 2017-08-22 Burning kit

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EP (1) EP3287727B1 (en)
DE (1) DE102016010228A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021001897A1 (en) 2021-04-13 2022-10-13 Schunk Ingenieurkeramik Gmbh Kiln auxiliaries construction for charging the material to be burned

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1055522A (en) 1911-05-26 1913-03-11 Barnet Mfg Company Ltd Shelf-bracket.
EP0964217B1 (en) * 1998-04-15 2003-06-25 Saint-Gobain IndustrieKeramik Rödental GmbH Firing shelf assembly for furnace car
DE20305182U1 (en) * 2003-03-31 2003-07-03 Saint Gobain Industriekeramik Brennguttragevorrichtung
DE102005003501B4 (en) * 2005-01-25 2014-09-04 Saint-Gobain Industriekeramik Rödental GmbH Device for supporting, stacking and transporting combustible material
DE202006009973U1 (en) * 2006-06-23 2007-10-25 Schunk Ingenieurkeramik Gmbh Setting rack for holding firewood during a kiln firing
DE102006038149B4 (en) 2006-08-16 2014-04-30 Saint-Gobain Industriekeramik Rödental GmbH Brenngestellaufbau from at least one Brenngestell
DE102010054205B4 (en) 2010-12-11 2012-08-09 Schunk Ingenieurkeramik Gmbh kiln furniture

Non-Patent Citations (1)

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Title
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DE102016010228A1 (en) 2018-03-01
EP3287727A1 (en) 2018-02-28

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