WO2013160339A2 - Couche intérieure réfractaire pour fours industriels - Google Patents

Couche intérieure réfractaire pour fours industriels Download PDF

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Publication number
WO2013160339A2
WO2013160339A2 PCT/EP2013/058468 EP2013058468W WO2013160339A2 WO 2013160339 A2 WO2013160339 A2 WO 2013160339A2 EP 2013058468 W EP2013058468 W EP 2013058468W WO 2013160339 A2 WO2013160339 A2 WO 2013160339A2
Authority
WO
WIPO (PCT)
Prior art keywords
pin
surface normal
wall
recess
middle layer
Prior art date
Application number
PCT/EP2013/058468
Other languages
German (de)
English (en)
Other versions
WO2013160339A3 (fr
WO2013160339A4 (fr
Inventor
Markus Horn
Original Assignee
Jünger + Gräter Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jünger + Gräter Gmbh filed Critical Jünger + Gräter Gmbh
Priority to EP13719788.5A priority Critical patent/EP2841862B1/fr
Publication of WO2013160339A2 publication Critical patent/WO2013160339A2/fr
Publication of WO2013160339A3 publication Critical patent/WO2013160339A3/fr
Publication of WO2013160339A4 publication Critical patent/WO2013160339A4/fr

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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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/004—Linings or walls comprising means for securing bricks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings

Definitions

  • the invention relates to a wall element of a refractory inner layer for an industrial furnace wall provided with a middle layer and / or optionally an insulation layer, having a back surface A3 having a surface normal N and facing the middle layer, having a thickness d and a face A3 opposite to each other arranged inside 13.
  • Industrial furnaces with an internal insulation layer are referred to as adiabatic combustion chambers due to the isolation.
  • the invention also relates to a wall part of a middle layer which can be applied between a refractory inner layer and an industrial furnace wall and / or optionally an insulation layer and has an inner surface 14 which can be turned over the inner layer and has a surface normal N.
  • the invention further relates to a protective lining for an industrial furnace wall having an inner refractory layer and a middle layer disposed between the inner layer and the industrial furnace wall, the inner layer being formed of a plurality of juxtaposed wall elements which are mechanically coupled to the industrial furnace wall via a plurality of anchors Wall element one of the middle layer facing, a surface normal N having back A3 and the middle layer has an inner layer 14 facing the inner side.
  • an insulating layer may be provided between the industrial furnace wall and the middle layer.
  • the industrial furnace wall is made of steel and stored in a housing made of steel supports.
  • the invention relates on a wall element of an inner refractory layer for an industrial furnace wall provided with a middle layer and an insulation layer.
  • the thermal expansion of the inner layer is substantially larger than that of the industrial furnace wall. Due to the middle layer and in particular the insulation layer, the industrial furnace wall thus remains relatively cool, so that the increased thermal expansion of the inner layer is not also provided by the industrial furnace wall. Consequently, expansion joints are necessary between the wall elements, over which this increased thermal expansion within the inner layer can be compensated. These expansion joints are provided at different distances and relatively large.
  • a lining for adiabatic combustion chambers of industrial furnaces is already known from EP 2 189 743 A1.
  • the lining has, in addition to two insulating layers on a protective layer of refractory blocks, which are anchored via steel anchors to a furnace wall made of metal.
  • a circumferential groove is formed in the narrow sides of each block, wherein at least one steel anchor engages with its tip in the groove for the purpose of anchoring the same.
  • the refractory mass flows through a gap between the protective layer and the insulating layer into a rear gap between both narrow sides and thus into said groove.
  • On the industrial furnace wall circulating brackets are provided at different heights over which the weight of the inner, middle or insulation layer of the various subfields is partially intercepted.
  • a wall lining of industrial furnaces is also known. It consists of rectangular blocks, which also have a groove on both narrow sides, engage in the equipped with a clip anchor. Said grooves are also filled with a refractory and insulating insulation.
  • the protective layer Due to the insulating layers between the furnace wall and the protective layer, these two elements have very different temperatures during operation, resulting in correspondingly different thermal expansions. These different thermal expansions are counteracted by dividing the protective layer into a plurality of subfields, which are each composed of a plurality of blocks.
  • the subfields are spaced apart by expansion joints which are filled with flexible sealant such as preferably ceramic fibers. Within a subfield no expansion joints are provided, since the existing gaps between the blocks of a subfield are sealed with mortar or cement, which hardens after heating.
  • wall linings for fuel boilers which serve to protect the attached to the boiler wall heat exchanger tubes. Because such a wall lining immediately the boiler wall is arranged, are similar temperatures for both elements in operation, thus a similar thermal expansion before. Expansion joints are therefore not necessary with such a wall lining.
  • the object of the invention is to design and arrange a refractory inner layer or a wall element for an adiabatic combustion chamber such that a subdivision into subfields and thus the arrangement of expansion joints between the subfields is avoided.
  • the object is achieved according to the invention in that at least one pin extending in the direction R of the surface normal N or at least one recess extending in the direction R of the surface normal N is provided, the / in a perpendicular to the surface normal N acting form fit F can be brought with a recess or a pin of a middle layer.
  • the inner side 14 has at least one recess extending in the direction R of the surface normal N or at least one pin extending in the direction R of the surface normal N, the / in a perpendicular to the surface normal N acting form fit F with a Recess or a pin of an inner layer can be brought.
  • the object is achieved in that the wall element on the back A3 has at least one pin or recess and the middle layer has at least one corresponding recess or a corresponding pin, wherein the pin is inserted in the direction R of the surface normal N in the recess and between the pin and the recess a perpendicular to the surface normal N acting positive fit F is formed. So the Pin in direction R of the surface normal N can be inserted into the recess, the pin is smaller in diameter than the opening cross-section of the recess. Thus, a lateral offset during insertion is avoided.
  • the pin could also be hook-shaped, so that a lateral movement would be necessary for insertion. However, this would go along with the fact that, at least in the case of wall elements at the edge where no lateral offset is possible due to the installation space conditions, the pin could not be inserted into the recess.
  • a pin or a recess which can form a positive connection between the wall element and the middle layer at least in a vertical direction, can be dispensed with the application of consoles, which absorb the weight of a plurality of wall elements.
  • the storage or suspension of the respective wall element is ensured by the pin-groove pairing of each individual wall element, so that also between the wall elements to be provided gap or partial gap S2 between all wall elements can be made about the same size.
  • the respective joint can be reduced to a minimum of a few millimeters.
  • the aforementioned direction R of the surface normal N points to a flat, parallel to the vertical inner side of the middle layer extending inside of the wall element.
  • the direction R thus runs horizontally. If this shape of the inside of the wall element is not given, such as, for example, in the case of a profiled inside, so it is to turn off a horizontally extending direction R.
  • the positive engagement is formed from a pin-hole pairing consisting of either a wall-element-type pin and a middle layer-soaped recess and / or an equivalent reversal of a recess contained in the back of the wall element and a pin protruding on the inside of the middle layer.
  • the pin and the recess are, as already stated, in the direction R of the surface normal N or in the horizontal direction or at least in a proportionate direction thereof plugged into each other, so with respect to the realizing wall structure in the vertical direction said positive connection F between the wall element on the one hand and the Middle layer is guaranteed on the other hand.
  • the inside of the wall element in this case limits the combustion chamber directly.
  • the pin points a width or a diameter corresponding to between 20% and 90% or 60% of the width of the wall element.
  • a plurality of side surfaces S3a-S3d of length 1 delimiting the inner side 13 are provided, wherein a groove of depth t is provided on at least two adjoining side surfaces S3b, S3c, the groove starting from the inner side 13 has a partial height dl that is at least 5%, 10%, 20% or 30% of the height d large.
  • the respective wall element has a thickness of the height d and a side surface S3c, S3d with the length 1 and two side surfaces S3e, S3d are arranged opposite each other and between two side surfaces S3e, S3d Gap S is formed, wherein the gap S has a width which varies over the height d, starting from an inner side 13 of the wall element, a first partial gap Sl with a width bl and a partial height dl and an adjoining second partial gap S2 with a Width b2 and are provided with a partial height d2, wherein the partial height dl is at least 10% or 40% to 50% of the height d and / or the partial height d2 is at least 10% or 50% to 60% of the height d and / or the Width b2, at least in the area of the rear side A3, is a maximum of 5 mm to 10 mm.
  • the first sub-slit Sl is filled with mortar or putty, so
  • the width bl varies over at least 10% to 80% of the partial height dl, wherein the width bl increases inwardly, starting from an inner side 13, so that the sub-gap Sl with respect to the direction R of the surface normal N forms an undercut H3.
  • the distinction ensures a long-lasting fit of the hardened mortar or putty.
  • the depth t varies over at least 10% to 80% of the partial height dl, wherein the depth t increases towards the rear, starting from a value tl to a value of at least 2 mm to 10 mm, so that an undercut H3 is formed, wherein tl is at least 1 mm to 5 mm.
  • the undercut H3 within the groove or the partial gap ultimately ensures a wedge effect, so that a filling material introduced therein is stuck therein after curing. This even if a reduction of existing within the groove holding force or connecting force to the wall element occurs.
  • the adjoining the inside 13 groove or the first sub-slit Sl can be filled with the most abrasion-resistant filling, so that it forms a sealing joint, the protection of the underlying lying, eg. With less abrasion-resistant mass filled second sub-gap S2 in the filled state, as Expansion joint serves, guaranteed.
  • the second sub-gap S2 or the expansion joint can be made relatively small or narrow, since it is uniformly large or small over all wall elements, so that the respective expansion joint only has to compensate for the expansion compensation of a wall element.
  • the expansion joint is filled with less solid, and thus less abrasion-resistant material, so that said expansion compensation is guaranteed.
  • the expansion joint is closed or filled at least towards the rear, so that the potting compound to be introduced between inner and outer layer does not enter the expansion joint.
  • the potting compound is too strong especially after reaching the operating temperature to ensure the necessary expansion compensation. Then this is ensured and the potting compound is cured in the free space, the expansion joint is closed or sealed at least from the back. From the inside this is covered by the filled sealing joint or the filler.
  • the expansion joint may be sealed for the purpose of mounting to protect against the potting compound or the filler with any materials that ensure sufficient expansion compensation at operating temperature.
  • the material can also be chosen so that it burns as, for example, cardboard or as already said in the joint remains such as, ceramic fiber.
  • the pin serves as a spacer and in a recess or in the inner region of a recess of a middle layer or an inner layer in the direction R of the surface normal N against the middle layer or the inner layer can be applied or if in addition to the on the inside of the wall part or on the back of the wall element arranged pin at least one spacer element is provided in the form of a survey that can be applied against the inner layer or the middle layer.
  • the pin itself can serve as a spacer, which ensures a distance or a free space between the wall element and the middle layer or between the wall part and the inner layer.
  • different distance be provided elements that ensure said distance.
  • the distance between the inner layer and the intermediate layer is necessary to ensure the casting with potting compound, such as. Concrete.
  • potting compound such as. Concrete.
  • the potting compound enters said recess, so that the pin mounted therein is fixed in particular in the direction R of the surface normal or in the vertical direction by the potting compound.
  • a passage opening in which an anchor is attachable, wherein a width of the passage opening varies over the height d, and starting from an inner side 13 of the wall element, a first part recess with a width wl and a partial height d3 and an adjoining second partial recess with a width w2 are provided, wherein the width wl is at least partially larger than the width w2.
  • the width wl varies over at least 80% of the partial height d3, wherein the width wl increases inwardly (starting from an inner side 13), so that the partial recess with respect to a direction R of the surface normal N an undercut Hl having.
  • the undercut Hl within the groove ultimately also ensures a wedge effect of a filled there filling for filling.
  • a passage opening is provided, in which an anchor is attachable, wherein a usable in the through hole ceramic sealing plug is provided and the sealing plug with respect to the direction R of the surface norma len N positively connected to the wall element can be coupled.
  • the attachment of a form-fitting engaging, originally designed as a solid closure element, which is preferably formed of the same material as the wall element itself, ensures a tight and durable closure for the round passage opening in which the metal anchor or the retaining nut is located.
  • the amount of maintenance work is reduced with respect to the generally provided in this opening filling material.
  • a thread to be provided on the sealing plug is possible, which cooperates with a corresponding internal thread within the wall element.
  • connection in the manner of a bayonet closure would be possible, which is formed from one or more radially extending in the direction of the central axis of the closure pieces, which engage in a corresponding groove within the passage opening.
  • a connection in the manner of a bayonet closure would be possible, which is formed from one or more radially extending in the direction of the central axis of the closure pieces, which engage in a corresponding groove within the passage opening.
  • the pin and / or the recess has an undercut H2 with respect to the direction R of the surface normal N.
  • the formation of an undercut of the pin or the recess ensures sufficient gap for filling or behind casting with potting compound.
  • the potting compound ensures not only the form fit F extending in the vertical direction but, above all, a form fit between the peg and the recess which acts in the direction R of the surface normal N. Even in the case of loosening an anchor or the advanced wear of the same, the wall element in the direction R of the surface normal N remains positively connected to the middle layer via the pin-hole pairing.
  • pins or the spacer elements may be provided.
  • the number of pins or the spacer elements can be selected accordingly.
  • At least three contact elements, ie pins or spacers are advantageous to ensure sufficient, therefore specific storage.
  • the use of four pins or recesses ensures a simplified assembly, although the storage itself is overdetermined.
  • a) has a convex basic shape G3, G4 or
  • b) has a basic shape G3, G4 with surface portions F3, F4, wherein the surface portions F3, F4 are employed with respect to a horizontal H.
  • pegs or the spacing element which have a concave basic shape with respect to the direction R of the surface normal N or which have a basic shape possess with area proportions, which are not employed compared to a horizontal H. Smaller voids below the respective element or pin are not detrimental.
  • a potted or spacer spacer is filled with potting or at least fillable space between the middle layer and the inner layer is provided.
  • potting compound for example, concrete comes into consideration.
  • the potting compound fills the space, and therefore also the gaps between the pins and the recesses, so that a secure mounting of the respective wall element is ensured at the middle layer or a wall part thereof.
  • an extended protection of the middle class is guaranteed.
  • the first partial gap Sl is preferably filled with curable material such as mortar or putty, so that on the whole Inside 13 of the wall lining no expansion joint to be filled with expansion equalization material such as fiber material is necessary.
  • the entire inner side 13 has a solid surface.
  • Figure 1 is a sectional view of a protective lining
  • Figure 2a is a sectional view A-A of Figure 2b;
  • Figure 2b shows a view of the wall element from behind on the
  • Figure 3a is a view of various wall elements
  • Figure 3b is a sectional view B-B of Figure 3a;
  • Figure 4a is a sectional view C-C of a middle layer of Figure 4b;
  • Figure 4b is a view of the middle layer from the front
  • Figure 5 a schematic diagram of a structure of an inner layer
  • FIG. 5b is a sectional view D-D from FIG. 5a.
  • an industrial furnace wall 2 is lined with a protective lining 1 and an insulating layer 6 arranged between the protective lining 1 and the industrial furnace wall 2.
  • the protective lining 1 in turn is formed by an inner layer 3 delimiting a combustion space 12 and an insulating layer 6 between the insulating layer 6
  • metal armature 5, 5 ⁇ are arranged in the form of bolts through which the inner layer 3 is held at least in one direction perpendicular to the industrial furnace wall 2 and R in a surface normal N of the inner layer.
  • FIG. 1 two embodiments are shown in FIG. 1, separated by the approximately centrally dashed line.
  • the inner layer 3 is formed of different wall elements 3a, 3b, which are arranged one above the other, wherein each wall element 3a, 3b is fastened via an armature 5, 5.
  • the wall element 3a has a central pin 3.1, which engages in a corresponding recess 4.1 of the middle layer 4.
  • the wall element 3a has a plurality of spacer elements 3.7, 3.8, which bear against a rear side A4 of the middle layer 4.
  • the middle layer 4 has a pin 4.1, which engages in a corresponding recess 3.1 of the wall element 3b.
  • the middle layer 4 has a plurality of spacer elements 4.7, 4.8, which abut against a rear side A3 of the inner layer 3.
  • a pin-hole pairing 34 or hole-pin pairing 43 thus formed ensures a positive fit F acting in the vertical direction, ie a mounting or suspension of the respective wall element 3a, 3b, in particular in the vertical direction or in a direction perpendicular to the Surface normal N, so that between the wall elements 3a, 3b, a relatively small gap S is formed.
  • the gap S has over a partial height d2 a partial gap S2, whose width b2 is formed substantially smaller than conventional expansion joints.
  • the partial gap S2 has a width of about 5 mm.
  • the wall element 3a is shown.
  • the wall element 3a With a sectional view A-A according to Fig. 2a, the wall element 3a on its rear side A3 to the centrally arranged pin 3.1, through which a passage opening 8 extends with a varying width w.
  • the passage opening 8 serves to receive the armature 5.
  • the through-opening 8 has a first partial recess 8.1 with a width w1 which widens inwardly over the partial height d3 and an adjoining partial recess 8.2 with a somewhat smaller width w2.
  • the partial recess 8.2 is designed to be substantially cylindrical in order to receive the armature 5, while the partial recess 8.1 forms an undercut H1 due to the widening width w1 inward.
  • the partial recess 8.1 is at least partially closed according to FIG. 1 with filling compound 10, which remains after curing due to the undercut Hl in the partial recess 8.1 and can not fall out to the inside 13 out.
  • the respective wall element 3a is rectangular or square and has four side surfaces S3a-S3d, each having a length l.
  • a groove 7.1, 7.2 is provided according to FIG. 2a. While the wall element 3a has a thickness of the height d, the respective groove 7.1, 7.2 extends over a partial height dl.
  • the groove 7.1, 7.2 in this case has a varying depth t, which increases from a value tl of about 5 mm to a value of about 10 mm.
  • an undercut H3 is formed due to which a filling compound 10 disposed therein ⁇ can not fall out towards the inside 13 of FIG. 1.
  • the four spacer elements 3.5-3.8 are provided which are evenly distributed around the pin 3.1. While the pin 3.1 has a round or frusto-conical shape, the four spacers 3.5-3.8 have an approximately guadal-shaped basic shape and are set at an angle of 45 ° with respect to a horizontal H. Flat surface portions F3 of the respective spacer 3.5-3.8 are thus also made relative to the horizontal H.
  • the truncated cone-shaped pin 3.1 which has a convex basic shape G3. Thus, at most point-shaped surface portions are present, which are aligned horizontally.
  • FIGS. 3 a, 3 b various embodiments for the wall element 3 a, 3 b, 3 c, on the one hand, and the wall part 4 a or the middle layer 4, on the other hand, are shown.
  • the wall part 4a and the middle layer 4 are not shown in Fig. 3a.
  • the wall element 3 a corresponds to the embodiment according to FIGS. 2, 2 b
  • the wall element 3 b has four spigot-shaped spacing elements 3.1-3.4, which can be applied against the middle layer 4 or the recesses 4.2, 4.3 and at the same time serve as a spacer element.
  • the passage opening 8 is provided for the armature 5
  • the wall element 3c in turn has a central recess 3.1, via which the wall element 3c can be arranged on a journal 4.1 of the middle layer 4.
  • the middle layer 4 has a corresponding architecture.
  • the middle layer 4 has a recess 4.1 for the pin 3.1.
  • the recess 4.1 also has a corresponding undercut H2.
  • the middle layer 4 has recesses 4.2, 4.3, which serve to receive the said pins 3.1-3.4.
  • this has a central recess 3.1, which is placed on a pin 4.1 of the middle layer 4.
  • the middle layer 4 has a plurality of spacer elements 4.7, 4.8, against which the wall element 3c in the direction R of the surface normal N can be applied.
  • the spacer elements 4.7, 4.8 may be formed according to the architecture of the spacers 3.5-3.8 of the wall element 3a accordingly.
  • a gap S is formed with the undercut H3 due to the described grooves 7.1, 7.2, 7.4, 7.5.
  • this has, as shown between the wall elements 3a, 3c, a partial gap Sl with a varying width bl.
  • the brewery te bl becomes larger starting from the inner side 13 inwards, so that the undercut H3 is formed.
  • a second sub-gap S2 is formed with a width b2. This partial gap S2 corresponds to the absolute distance between two wall elements 3a, 3b.
  • a dimension v2 between the side surface S3f and the partial recess 8.2 is at least the width b2 smaller than a dimension vi between the armature 5 and a side surface S3a of the adjacent wall element 3a, so that even when the wall element 3b rests radially on the armature 5, a minimum dimension the width b2 of the sub-gap S2 is ensured.
  • the wall element 3c has, in the region or in front of the passage opening 8 ⁇ , a sealing plug 9 which is formed from the same material as the wall element 3c.
  • the sealing plug 9 is fastened in the wall element 3c via a positive connection acting in the direction of a central axis 9.3. Shown here are two variants of such a form fit. According to the upper half of the drawing, with respect to the central axis 9.3, the positive connection is formed by an external thread 9.1 of the sealing plug 9 and a corresponding internal thread 3.9a of the wall element 3c.
  • the sealing plug 9 has a in the radial direction to the central axis 9.3 extending bayonet closure piece 9.2, which engages in a corresponding bayonet-locking groove 3.9b of the wall element 3c. Unscrewing the sealing plug 9 is ensured by the existing friction forces on the one hand and the complementary introduction of adhesive on the other hand. Through the respective grooves 7.1-7.6, the gaps S between the wall elements 3a-3c are formed. Referring to Figures 4a, 4b, the middle layer 4 is shown in more detail. Starting from the sectional view Fig. 4a, corresponding to the right half of Fig. 3b, the view of the inside 14 is shown in Fig. 4b.
  • the middle layer 4 or the wall part 4a has the four recesses 4.1-4.4.
  • the middle layer 4 or the wall part 4a has the recess 4.1 with a corresponding undercut H2
  • the middle layer 4 or the wall part 4a analogously to the architecture of the wall element 3a according to FIGS. 2a, 2b a centrally arranged pin 4.1 and four distributed over the circumference arranged spacers 4.5-4.8 has.
  • the pin 4.1 is also frusto-conical with a convex basic shape G4.
  • the flat surface parts F4 of the spacer elements 4.5, 4.8 are also made with respect to the horizontal H.
  • potting compound 11 is filled, which also surrounds the corresponding recess 3.1, 4.1 around the respective peg 3.1, 4.1 so that the zap Fen-hole pairing 34 and hole-pin pairing 43 both in the direction R of the surface normal N and in a direction perpendicular thereto, thus forming a positive connection both in the vertical and in the horizontal direction.
  • the respective wall element 3a is secured in the event of failure of an armature 5 before detachment from the middle layer 4.
  • this suspension is ensured in this way, and thus the absorption of the weight force via the positive engagement F. acting in the vertical direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

La présente invention concerne un élément de paroi (3a) d'une couche intérieure réfractaire (3) destinée à une paroi (2) de four industriel comportant une couche centrale (4), et une partie de paroi (4a) d'une couche intérieure (3), qui comporte une face A3 (14) présentant une normale N à la surface, pouvant être orientée vers la couche centrale (4) ou vers la couche intérieure (3) et présentant une épaisseur de hauteur (d), ainsi qu'une face intérieure (13) opposée à la face arrière (A3). Au moins une saillie(3.1, 4.1) s'étendant dans la direction R de la normale N à la surface ou au moins un évidement (3.1, 4.1) s'étendant dans la direction R de la normale N à la surface sont situés sur la face A3 (14). Ladite saillie ou ledit évidement peuvent être amenés en liaison par complémentarité de formes F, perpendiculairement à la normale N à la surface, avec un évidement (4.1, 3.1) ou avec une saillie(4.1, 3.1) d'une couche centrale (4) ou d'une couche intérieure (3). L'invention concerne également un revêtement de protection (1) destiné à une paroi (2) de four industriel et comportant une couche intérieure réfractaire (3) et une couche centrale (4) située entre la couche intérieure (3) et la paroi (2) de four industriel.
PCT/EP2013/058468 2012-04-27 2013-04-24 Couche intérieure réfractaire pour fours industriels WO2013160339A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13719788.5A EP2841862B1 (fr) 2012-04-27 2013-04-24 Couche intérieure réfractaire pour fours industriels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012103748.5A DE102012103748B4 (de) 2012-04-27 2012-04-27 Wandelement einer feuerfesten lnnenschicht und Schutzauskleidung für eine lndustrieofenwand
DE102012103748.5 2012-04-27

Publications (3)

Publication Number Publication Date
WO2013160339A2 true WO2013160339A2 (fr) 2013-10-31
WO2013160339A3 WO2013160339A3 (fr) 2013-12-19
WO2013160339A4 WO2013160339A4 (fr) 2014-02-20

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PCT/EP2013/058468 WO2013160339A2 (fr) 2012-04-27 2013-04-24 Couche intérieure réfractaire pour fours industriels

Country Status (3)

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EP (1) EP2841862B1 (fr)
DE (1) DE102012103748B4 (fr)
WO (1) WO2013160339A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3029404A1 (fr) * 2014-12-01 2016-06-08 Könn GmbH Industrieofenbau u. Thermotechnik Système de four industriel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016119924A1 (de) 2016-10-19 2018-04-19 Jünger+Gräter GmbH Industrieofenwand mit Auskleidung

Citations (4)

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WO2013160339A3 (fr) 2013-12-19
EP2841862A2 (fr) 2015-03-04
WO2013160339A4 (fr) 2014-02-20
EP2841862B1 (fr) 2018-08-29
DE102012103748A1 (de) 2013-10-31

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