EP0236678A1 - A structure for bearing insulating material, in particular for the thermoinsulation of hot and wide surfaces - Google Patents
A structure for bearing insulating material, in particular for the thermoinsulation of hot and wide surfaces Download PDFInfo
- Publication number
- EP0236678A1 EP0236678A1 EP87100328A EP87100328A EP0236678A1 EP 0236678 A1 EP0236678 A1 EP 0236678A1 EP 87100328 A EP87100328 A EP 87100328A EP 87100328 A EP87100328 A EP 87100328A EP 0236678 A1 EP0236678 A1 EP 0236678A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet metal
- metal elements
- rods
- elements
- guides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/0805—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall
- E04F13/0808—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall adjustable in several directions one of which is perpendicular to the wall
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts
Definitions
- the present invention relates to a structure for bearing insulating material, in particular for the thermoinsulation of hot and wide surfaces.
- thermoinsulation of the outer walls of tanks, stacks, heat exchangers and similar apparatuses having temperatures of work ranging from 500 to 650 °C is conventionally carried out by means of outer finishing sheet metal elements stiffly secured to the hot walls and mounted in a spaced position from the latter by means of a supporting carpentry. It is however known that any body undergoing an increasing temperature will deform according to the thermal expansion coefficient thereof.
- the sheet metal elements of the above stated insulating structures will thus deform owing to a double effect: the first one consists in the transmission of the hot wall dilatations to the sheet metal elements through the supporting carpentry which, as previously stated, is rigidly secured to both the hot surface and the same sheet metal elements; the second one consists in the flow of heat transmitted outwardly through the same carpentry which acts as a thermal bridge.
- the latter deformation is very important due to the high value of the expansion coefficient of the sheet metal element materials.
- the insulating materials generally used for carrying out the insulating structures suitable for working at high temperatures are further subjected to contractions, thus broadening the drawbacks due to the hot surface expansion.
- US-A-2 435 172 (YOUNG) relates to a stack for furnaces wherein a framework is provided for supporting outer walls mounted in a spaced relationship with respect to an inner refractory wall.
- US-A-4 369 032 (LOWRANCE) describes a reheat furnace comprising a plurality of resilient means to avoid overloading of a rigid frame mounted on refractory elements.
- GB-A-829 201 LACLEDE-CHRISTY Co.
- FR-A-1 413 235 (DIDIER-WERKE A.G.) describes the construction of walls for furnaces.
- DE-A-3 032 359 (LOOS) and LU-A-68 748 (BPB INDUSTRIES Ltd.) describe metal structures for supporting coat members of building walls.
- the mentioned supporting structures may be advantageously used at low temperatures (in the range of room temperatures), but are obviously inadeguate when temperature increases as in a furnace or in a heat exchanger.
- the connecting elements of the structure will quickly deform due to high temperatures and, generally, they are adapted for being mounted onto flat walls only.
- the bearing structure according to the present invention comprises a supporting spacer and outer finishing sheet metal elements mounted thereon, and is essentially characterized in that said spacer and hot surface directly engage each other, means to allow for dimensional movements of said spacer and hot surface due to the thermal expansions of the latter being provided, said means keeping the mentioned insulating sheet metal elements lying still at a stationary position.
- Said means allowing for the dimensional movements of the structure of the invention consist, according to a further feature thereof, of a plurality of vertical sections or rods provided at one side with means for engaging said sheet metal elements and also allowing for horizontal displacements of said rods with respect to said sheet metal elements and, at the other side, with brackets or stirrups for the engagement of the hot surface in vertical sliding relationship with the same bearing structure.
- the latter further characterizes in that horizontal support guides or rails secured to said sheet metal elements are provided, said guides cooperating with the relevant engaging means of the rods.
- said means adapted to connect said rods and the mentioned sheet metal elements consist of approximately C cross sectioned plates.
- each plate is provided with an outer vertical stopping member, said plates further comprising a plurality of rolling-contact bearings mounted on the vertical and low horizontal sides of said C cross section, the mentioned bearings allowing said horizontal guides of the sheet metal elements to slide within the mentioned shaped plates of the rods.
- the said means for connecting said rods and said sheet metal elements consist, according to a characteristic embodiment of the invention particularly adapted to the thermoinsulation of curve surfaces, of shaped metal plates into sliding engagement with said support guides of the outer sheet metal elements; resilient means are further provided to allow for variations in the distance between said rods and said sheet metal elements due to the radially directed thermal expansions of the hot surfaces.
- the invention shows the remarkable advantage to allow for thermal expansion and contraction of the structure, due to the deformation of the hot surfaces to be insulated, by means of a particular connection between the rods of the bearing structure and the same outer sheet metal elements.
- a characteristic connection allows for use of outer sheet metal elements having a continuous surface to thermoinsulate flat and curve hot surfaces, any inner stress capable of deforming, detaching or breaking the outer sheet metal elements being avoided.
- the heat dispersions through thermic bridges are remarkably reduced, this result being obtained by means of the small cross section of the bearings of the structure of the invention and the light material of the vertical sections which are adapted to increase the course of the heat flow directed outwardly.
- the layers of thermoinsulating material suitably arranged in the structure of the invention break this course off and thus further diminish the heat di spersions.
- the present invention shows the advantage that the supporting structure may resist high temperatures and accordingly be directly mounted on the hot wall to be insulated without any intermediate layer of refractory material.
- the structure of the invention allows for a wider range of deformation in all directions and, accordingly, may work at higher temperatures than the conventional structures.
- the bearing structure as shown in the figures 1 to 5 is particularly suitable for the thermoinsulation of flat surfaces, that one as shown in the figures 6 to 8 being adapted to thermoinsulate curve surfaces (e.g. the outer walls of tanks and converters).
- the bearing structure of the invention essentially consists of a supporting spacer and outer finishing sheet metal elements.
- the supporting spacer comprises a plurality of vertical sections or rods 1 made of metallic material and parallely mounted in front of the hot surface to be insulated 2.
- the side of said rods facing said surface 2 comprises a plurality of supporting brackets or stirrups 3 (figures 3 and 4) one side thereof being welded on the surface 3 itself, the opposite side of said brackets being secured to the rods 1 by means of grooved small disks 4 which are slidingly mounted into a corresponding slit provided at the rod 1 side which faces the hot surface 2.
- Gaskets of ceramic material 5 are arranged interposed betwennenen the components of the stirrup 3 and the relevant disk 4 to reduce the heat transfer towards the bearing structure.
- At the opposite side of the rods 1 is secured at least one shaped plate 6 (fig.2) preferably secured on the upper portion of each rod.
- the plates 6 are made of metallic C cross sectioned elements (fig.4), the lower end thereof comprising an outer vertical member 7.
- the vertical side 8 of the plates 6 is provided with two rolling-contact bearings 9 mounted horizzontally and aligned, the axis of rotation thereof being perpendicularly directed as compared to the rod 1 axis which carries said plate.
- Each bearing 9 further comprises a peripheral groove 10.
- the lower horizontal side 11 of the plates 6 is on the contrary equipped with a rolling-contact bearing 12, the axis of rotation thereof being directed parallel with respect to the axis of the corresponding rod 1.
- the outer finishing sheet metal element comprises a corruga ted sheet 13 made of aluminium, the inner side thereof facing the plates 6 (and mounted at the same height as those one) being provided with a supporting metallic guide or rail 14.
- the latter essentially consists of a shaped metallic section of an approximately G cross section (fig.4), the upper end 15 thereof being positioned, when the structure is assembled, into the groove 10 of the bearings 9, the lower and reversed base 16 thereof being on the contrary mounted against the inner side of the vertical member 7.
- the supporting plate 17 of fig.5 is mounted on the lower portion of the rods 1 and differs from the previously described plated 6 in that it lacks of the bearings and in the section shape. Said plate acts as a fixed point of the supporting structure and guides the thermal expansions of the structure in the desired directions.
- the thermal insulating material 18 flexible ceramic fibers and rock wool
- the vertical expansions of the hot surface 2 are allowed through the sliding fit between the brackets 3 and the rods 1; the sheet metal elements 13 are not influenced by the horizontal displacements of the surface 2 (and then of the rods 1), due to the particular sliding fit between the plates 6 and the supporting rails 14.
- the embodiment of figures 6 to 8 refers to a curve hot surface 2.
- the bearing structure is provided with rods 1 mounted in front of the surface 2 and retained thereon by means of brackets 3 and the relevant grooved small disks 4.
- the side of the rods 1 facing the sheet metal element 13 comprises C shaped plates 19 similar to the already described plates 6, but lacking of any retaining member and bearings.
- the sheet metal element 13 carries mounted thereon horizontal guide means mounted at the same height of the plates 19 and adapted to be slidingly mounted into the latter.
- Said guide means consist of light lattice beams 20 horizontally secured to the sheet metal element 13; the portion of said lattice beam 20 engaging into the plates 19 of the rods 1 is covered by plates 21.
- Telescopic spring members 22 allowing for radial displacements of the bearing structure relative to the elements 13 are provided to avoid that the sheet metal element 13 disengages from the structure of the rods 1.
- the hollow space between the surface 2 and the sheet metal element 13 is fitted with thermal insulating material.
- Both of the above embodiments may comprise a single sheet metal element having an uninterrupted surface; as a matter of fact, the dimensional movements of the hot surface are not transmitted to the outer sheet metal element (which is kept lying still at a stationary position with respect to the relevant supporting structure).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Insulation (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Building Environments (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Insulating Bodies (AREA)
Abstract
Description
- The present invention relates to a structure for bearing insulating material, in particular for the thermoinsulation of hot and wide surfaces.
- The thermoinsulation of the outer walls of tanks, stacks, heat exchangers and similar apparatuses having temperatures of work ranging from 500 to 650 °C is conventionally carried out by means of outer finishing sheet metal elements stiffly secured to the hot walls and mounted in a spaced position from the latter by means of a supporting carpentry. It is however known that any body undergoing an increasing temperature will deform according to the thermal expansion coefficient thereof. The sheet metal elements of the above stated insulating structures will thus deform owing to a double effect: the first one consists in the transmission of the hot wall dilatations to the sheet metal elements through the supporting carpentry which, as previously stated, is rigidly secured to both the hot surface and the same sheet metal elements; the second one consists in the flow of heat transmitted outwardly through the same carpentry which acts as a thermal bridge. The latter deformation is very important due to the high value of the expansion coefficient of the sheet metal element materials. The insulating materials generally used for carrying out the insulating structures suitable for working at high temperatures are further subjected to contractions, thus broadening the drawbacks due to the hot surface expansion. The breakages of the connecting members undergoing to deformation stresses are the main damages of sheet metal elements stiffly secured to the supporting carpentry. The sheet metal elements considerably increase their temperature due to the presence of thermic bridges, the latter further causing a loss of heat. Accordingly, in addition to the mentioned drawbacks due to the deformations caused by direct heating of these surfaces, the problem exists of protecting and safeguarding the plant staff.
- US-A-2 435 172 (YOUNG) relates to a stack for furnaces wherein a framework is provided for supporting outer walls mounted in a spaced relationship with respect to an inner refractory wall.
US-A-4 369 032 (LOWRANCE) describes a reheat furnace comprising a plurality of resilient means to avoid overloading of a rigid frame mounted on refractory elements.
GB-A-829 201 (LACLEDE-CHRISTY Co.) relates to suspended refractory linings for furnaces.
FR-A-1 413 235 (DIDIER-WERKE A.G.) describes the construction of walls for furnaces.
All of these documents show different solutions to the purpose of allowing for expansion and contraction of the metallic framework due to the heat of the furnace. The mentioned prior art has the main drawback that the metallic framework structure should be protected from the high temperatures of the furnace (600 - 700 °C) and further cooled by air flowing to avoid the metallic members into sliding contact will bind together and break. According to the teachings of the recited prior art the metallic framework is secured to a layer of heavy and rigid refractory material, the metallic framework thus undergoing a remarkable stiffness. The above known insulating structures need also a suitable foundation for supporting the metallic framework, do not allow for use of flexible insulating material (e.g. rock wool and aluminium foils) and are in general very complex and expensive.
DE-A-3 032 359 (LOOS) and LU-A-68 748 (BPB INDUSTRIES Ltd.) describe metal structures for supporting coat members of building walls. The mentioned supporting structures may be advantageously used at low temperatures (in the range of room temperatures), but are obviously inadeguate when temperature increases as in a furnace or in a heat exchanger. As a matter of facts, the connecting elements of the structure will quickly deform due to high temperatures and, generally, they are adapted for being mounted onto flat walls only. - According to the present invention, a structure for bearing insulating materials adapted to overcome the above limits and drawbacks of the known outer insulating structures is now carried out.
The bearing structure according to the present invention comprises a supporting spacer and outer finishing sheet metal elements mounted thereon, and is essentially characterized in that said spacer and hot surface directly engage each other, means to allow for dimensional movements of said spacer and hot surface due to the thermal expansions of the latter being provided, said means keeping the mentioned insulating sheet metal elements lying still at a stationary position.
Said means allowing for the dimensional movements of the structure of the invention consist, according to a further feature thereof, of a plurality of vertical sections or rods provided at one side with means for engaging said sheet metal elements and also allowing for horizontal displacements of said rods with respect to said sheet metal elements and, at the other side, with brackets or stirrups for the engagement of the hot surface in vertical sliding relationship with the same bearing structure.
The latter further characterizes in that horizontal support guides or rails secured to said sheet metal elements are provided, said guides cooperating with the relevant engaging means of the rods.
According to a particular embodiment of the invention suitable to thermoinsulate flat and wide surfaces, said means adapted to connect said rods and the mentioned sheet metal elements consist of approximately C cross sectioned plates. The lower end of each plate is provided with an outer vertical stopping member, said plates further comprising a plurality of rolling-contact bearings mounted on the vertical and low horizontal sides of said C cross section, the mentioned bearings allowing said horizontal guides of the sheet metal elements to slide within the mentioned shaped plates of the rods.
The said means for connecting said rods and said sheet metal elements consist, according to a characteristic embodiment of the invention particularly adapted to the thermoinsulation of curve surfaces, of shaped metal plates into sliding engagement with said support guides of the outer sheet metal elements; resilient means are further provided to allow for variations in the distance between said rods and said sheet metal elements due to the radially directed thermal expansions of the hot surfaces. - In comparison with the known outer thermoinsulating structures comprising sheet metal elements, the invention shows the remarkable advantage to allow for thermal expansion and contraction of the structure, due to the deformation of the hot surfaces to be insulated, by means of a particular connection between the rods of the bearing structure and the same outer sheet metal elements. Such a characteristic connection allows for use of outer sheet metal elements having a continuous surface to thermoinsulate flat and curve hot surfaces, any inner stress capable of deforming, detaching or breaking the outer sheet metal elements being avoided.
According to a further advantage of the structure of the invention, the heat dispersions through thermic bridges are remarkably reduced, this result being obtained by means of the small cross section of the bearings of the structure of the invention and the light material of the vertical sections which are adapted to increase the course of the heat flow directed outwardly. The layers of thermoinsulating material suitably arranged in the structure of the invention break this course off and thus further diminish the heat di spersions. - In comparison with the above recited prior documents, the present invention shows the advantage that the supporting structure may resist high temperatures and accordingly be directly mounted on the hot wall to be insulated without any intermediate layer of refractory material. In consequence the structure of the invention allows for a wider range of deformation in all directions and, accordingly, may work at higher temperatures than the conventional structures.
- The invention will now be described, by way of example, with reference to the accompanying drawings of some preferred embodiments of the same invention.
- Figure 1 is a perspective view illustrating a first embodiment of the bearing structure of the invention.
- Figure 2 is a front view of a shaped plate mounted on the upper portion of a vertical rod of the structure of fig.1.
- Figure 3 is a horizontal sectional view of the structure of fig.1.
- Figure 4 is a sectional view along line A-A in fig.3.
- Figure 5 is a front view of a shaped plate mounted on the lower portion of a vertical rod of the structure of fig.1.
- Figure 6 is a top plan view of a further embodiment of the structure of the invention.
- Figure 7 is a top plan view of the engaging means of the structure of fig.6.
- Figure 8 is a side view of the elements of fig.7.
- The bearing structure as shown in the figures 1 to 5 is particularly suitable for the thermoinsulation of flat surfaces, that one as shown in the figures 6 to 8 being adapted to thermoinsulate curve surfaces (e.g. the outer walls of tanks and converters).
By referring to the embodiment of figures 1 to 5, the bearing structure of the invention essentially consists of a supporting spacer and outer finishing sheet metal elements. The supporting spacer comprises a plurality of vertical sections orrods 1 made of metallic material and parallely mounted in front of the hot surface to be insulated 2. The side of said rods facing saidsurface 2 comprises a plurality of supporting brackets or stirrups 3 (figures 3 and 4) one side thereof being welded on thesurface 3 itself, the opposite side of said brackets being secured to therods 1 by means of groovedsmall disks 4 which are slidingly mounted into a corresponding slit provided at therod 1 side which faces thehot surface 2.
Gaskets ofceramic material 5 are arranged interposed between the components of thestirrup 3 and therelevant disk 4 to reduce the heat transfer towards the bearing structure. At the opposite side of therods 1 is secured at least one shaped plate 6 (fig.2) preferably secured on the upper portion of each rod. Theplates 6 are made of metallic C cross sectioned elements (fig.4), the lower end thereof comprising an outervertical member 7.
Thevertical side 8 of theplates 6 is provided with two rolling-contact bearings 9 mounted horizzontally and aligned, the axis of rotation thereof being perpendicularly directed as compared to therod 1 axis which carries said plate. Each bearing 9 further comprises aperipheral groove 10. The lower horizontal side 11 of theplates 6 is on the contrary equipped with a rolling-contact bearing 12, the axis of rotation thereof being directed parallel with respect to the axis of thecorresponding rod 1.
The outer finishing sheet metal element comprises acorruga ted sheet 13 made of aluminium, the inner side thereof facing the plates 6 (and mounted at the same height as those one) being provided with a supporting metallic guide orrail 14. The latter essentially consists of a shaped metallic section of an approximately G cross section (fig.4), theupper end 15 thereof being positioned, when the structure is assembled, into thegroove 10 of the bearings 9, the lower and reversedbase 16 thereof being on the contrary mounted against the inner side of thevertical member 7.
The assembling operations of thesheet metal elements 13, equipped with therails 14, on thevertical rods 1 are carried out by running the rail ends within theplates 6, theupper end 15 of the latter being supported into thegrooves 10 of the bearings 9; thelower base 16 of theplate 6 is mounted against themember 7 of thesame plates 6.
Thebearing 12 with vertical axis of rotation is mounted on the corresponding plate in such a way as the outer edge of said bearing projects out of the body plate; the weight of thesheet metal element 13, which is retained by engagement of the shaped elements of theplates 6 into therails 14, will thus partly be supported by thebearings 12, the latter maintaining said sheet metal element into vertical position, any sliding friction being thus essentially eliminated.
The supportingplate 17 of fig.5 is mounted on the lower portion of therods 1 and differs from the previously described plated 6 in that it lacks of the bearings and in the section shape. Said plate acts as a fixed point of the supporting structure and guides the thermal expansions of the structure in the desired directions.
The thermal insulating material 18 (flexible ceramic fibers and rock wool) are filled into the hollow space between thehot surface 2 and thesheet metal element 13.
The vertical expansions of thehot surface 2 are allowed through the sliding fit between thebrackets 3 and therods 1; thesheet metal elements 13 are not influenced by the horizontal displacements of the surface 2 (and then of the rods 1), due to the particular sliding fit between theplates 6 and the supportingrails 14.
The embodiment of figures 6 to 8 refers to a curvehot surface 2. As in the previously described embodiment, the bearing structure is provided withrods 1 mounted in front of thesurface 2 and retained thereon by means ofbrackets 3 and the relevant groovedsmall disks 4. Similarly the side of therods 1 facing thesheet metal element 13 comprises Cshaped plates 19 similar to the already describedplates 6, but lacking of any retaining member and bearings. Thesheet metal element 13 carries mounted thereon horizontal guide means mounted at the same height of theplates 19 and adapted to be slidingly mounted into the latter. Said guide means consist oflight lattice beams 20 horizontally secured to thesheet metal element 13; the portion of saidlattice beam 20 engaging into theplates 19 of therods 1 is covered byplates 21.Telescopic spring members 22 allowing for radial displacements of the bearing structure relative to theelements 13 are provided to avoid that thesheet metal element 13 disengages from the structure of therods 1. As in the previous embodiment, the hollow space between thesurface 2 and thesheet metal element 13 is fitted with thermal insulating material.
Both of the above embodiments may comprise a single sheet metal element having an uninterrupted surface; as a matter of fact, the dimensional movements of the hot surface are not transmitted to the outer sheet metal element ( which is kept lying still at a stationary position with respect to the relevant supporting structure). - It will be apparent that further modifications may be carried out without modifying the essential teachings of the invention and thus being included in the same field of protection.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87100328T ATE59697T1 (en) | 1986-01-28 | 1987-01-13 | SUPPORT STRUCTURE FOR INSULATION MATERIAL, ESPECIALLY FOR THERMAL INSULATION OF HOT AND LARGE SURFACES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1921086 | 1986-01-28 | ||
IT19210/86A IT1189057B (en) | 1986-01-28 | 1986-01-28 | SUPPORT STRUCTURE FOR INSULATION MATERIAL, IN PARTICULAR FOR THE THERMAL INSULATION OF EXTENDED SURFACES AT HIGH TEMPERATURES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0236678A1 true EP0236678A1 (en) | 1987-09-16 |
EP0236678B1 EP0236678B1 (en) | 1991-01-02 |
Family
ID=11155825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87100328A Expired - Lifetime EP0236678B1 (en) | 1986-01-28 | 1987-01-13 | A structure for bearing insulating material, in particular for the thermoinsulation of hot and wide surfaces |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0236678B1 (en) |
AT (1) | ATE59697T1 (en) |
DE (1) | DE3766852D1 (en) |
ES (1) | ES2019886B3 (en) |
IT (1) | IT1189057B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0396818A1 (en) * | 1989-05-10 | 1990-11-14 | Constral Ag | Holding device for stone plates cast |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435172A (en) * | 1945-03-31 | 1948-01-27 | Chicago Fire Brick Co | Stack for furnaces |
GB829201A (en) * | 1956-10-05 | 1960-03-02 | Laclede Christy Company | Suspended furnace wall construction |
FR1413235A (en) * | 1964-09-23 | 1965-10-08 | Didier Werke Ag | Hearth walls, in particular rear walls of industrial furnaces |
LU68748A1 (en) * | 1972-11-07 | 1974-01-18 | ||
DE3032359A1 (en) * | 1980-08-28 | 1982-03-11 | Jasper, Wolf-Dieter, 6380 Bad Homburg | Adjustable wall cladding mounting substructure - has sliding foot on spacer with U=shaped support piece movable on side-pieces |
US4369032A (en) * | 1979-07-02 | 1983-01-18 | Inland Steel Company | Reheat furnace |
-
1986
- 1986-01-28 IT IT19210/86A patent/IT1189057B/en active
-
1987
- 1987-01-13 ES ES87100328T patent/ES2019886B3/en not_active Expired - Lifetime
- 1987-01-13 AT AT87100328T patent/ATE59697T1/en active
- 1987-01-13 EP EP87100328A patent/EP0236678B1/en not_active Expired - Lifetime
- 1987-01-13 DE DE8787100328T patent/DE3766852D1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435172A (en) * | 1945-03-31 | 1948-01-27 | Chicago Fire Brick Co | Stack for furnaces |
GB829201A (en) * | 1956-10-05 | 1960-03-02 | Laclede Christy Company | Suspended furnace wall construction |
FR1413235A (en) * | 1964-09-23 | 1965-10-08 | Didier Werke Ag | Hearth walls, in particular rear walls of industrial furnaces |
LU68748A1 (en) * | 1972-11-07 | 1974-01-18 | ||
US4369032A (en) * | 1979-07-02 | 1983-01-18 | Inland Steel Company | Reheat furnace |
DE3032359A1 (en) * | 1980-08-28 | 1982-03-11 | Jasper, Wolf-Dieter, 6380 Bad Homburg | Adjustable wall cladding mounting substructure - has sliding foot on spacer with U=shaped support piece movable on side-pieces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0396818A1 (en) * | 1989-05-10 | 1990-11-14 | Constral Ag | Holding device for stone plates cast |
Also Published As
Publication number | Publication date |
---|---|
ATE59697T1 (en) | 1991-01-15 |
ES2019886B3 (en) | 1991-07-16 |
EP0236678B1 (en) | 1991-01-02 |
DE3766852D1 (en) | 1991-02-07 |
IT1189057B (en) | 1988-01-28 |
IT8619210A0 (en) | 1986-01-28 |
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