EP0077608A1 - Thermally insulative modules for lining furnaces or like equipment - Google Patents
Thermally insulative modules for lining furnaces or like equipment Download PDFInfo
- Publication number
- EP0077608A1 EP0077608A1 EP82304821A EP82304821A EP0077608A1 EP 0077608 A1 EP0077608 A1 EP 0077608A1 EP 82304821 A EP82304821 A EP 82304821A EP 82304821 A EP82304821 A EP 82304821A EP 0077608 A1 EP0077608 A1 EP 0077608A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- blanket
- furnace
- modules
- folds
- 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
Links
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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
- F27D1/14—Supports for linings
- F27D1/144—Supports for ceramic fibre materials
-
- 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
- F27D1/0009—Comprising ceramic fibre elements
- F27D1/0013—Comprising ceramic fibre elements the fibre elements being in the form of a folded blanket or a juxtaposition of folded blankets
Definitions
- the present invention relates to thermally insulative modules for lining furnaces or like equipment.
- Ceramic fibre blankets and, therefore, the modules made thereof are not mechanically strong and must be handled with great care to avoid tearing.
- Ceramic fibre blanket material is known to shrink when exposed to temperatures in excess of 1093°C (2000°F).
- Known modules utilising blankets of such material for lining of furnaces have encountered difficulties caused by said shrinkage of the material. Shrinkage has caused separations between folds within a module and between modules themselves, thereby exposing the furnace shell and critical retainer members to the heat of the interior of the furnace. Shrinkage has also caused the pleats of a folded blanket configuration to unfold and hence sag since not all cold faced pleats were supported.
- a thermally insulative module for lining a furnace or like equipment, the module comprising an insulative blanket folded into a plurality of inner folds and outer folds, the module being characterised by a support bracket having a base portion and a bracket mounting member and a protected bracket retaining member at each end thereof, the plurality of outer folds of the blanket being positioned between the retaining members of the support bracket, and a fold support rod extending through the plurality of outer folds of the blanket and attached to each of the bracket retaining members.
- Modules forming preferred embodiments of the present invention and described hereinbelow can be used to line furnace walls and ceilings.
- the modules can be attached to a furnace wall or ceiling having threaded studs and/or other fastening devices.
- the mounting members of the bracket can have slotted ends or holes to be used in conjunction with the threaded studs.
- the blanket of the preferred modules is under compression before and after installation. The preferred modules resist unravelling and/or lamination of the layers of insulative blanket.
- FIG. 10 Each figure of the drawings illustrates a rod-anchored, accordion- fold, full-lining thermally insulative module 10 to be used for insulating a furnace or other high temperature equipment.
- the module 10 is preformed from a folded or pleated ceramic fibre insulating blanket 12 and a support bracket 20. Folds or pleats 14 and 16 exist at the hot or inner and cold or outer faces, respectively, of the module 10.
- the support bracket 20 has a base 22, and also has a protected upturned retaining member 24 and a mounting member 26 at each end thereof.
- a pleat support rod 30 extends between the retaining members 24 of each support bracket 20.
- the rod 30 is threaded perpendicularly through each cold face pleat 16 and is located near the outer or cooler face of the module 10 and parallel thereto.
- the outer or cooler face of the module 10 also referred to as the cold face, is defined as that surface of the module which comes into contact with the furnace wall.
- the hot face of the module 10 is defined as that surface of the module which is exposed to the interior of the furnace. Therefore, the module 10 has both hot face or inner folds or pleats 14 and cold face or outer folds or pleats 16.
- the pleat support rod 30 not only holds the ceramic fibre blanket 12 in compression, but also serves to retain each pleat 16 within the module 10.
- Each end of the pleat support rod 30 is attached to a support bracket retaining member 24.
- Each retaining member 24 is situated between an outer fold and end flap of the module, whereby the member 24 is protected from the detrimental effects of the furnace environment. Any conventional means of attachment can be used.
- the rod 30 will typically be end-threaded so that a nut at each end of the rod will keep the rod secured to the support bracket 20.
- the folded ceramic fibre insulating blanket 12 is formed from a suitable commercially available ceramic fibre sheet such as the type known under the trademark KAOWOOL and sold by The Babcock & Wilcox Company. It should be understood that the particular type of insulating blanket used is selected in accordance with the range of temperatures in the high temperature equipment in which the apparatus is to be installed.
- the folded blanket 12 is compressed prior to being placed within the support members 24 of the support bracket 20. This compression is calculated to compensate for thermal shrinkage of the-blanket material that occurs during use of the module.
- Banding material (not shown) is then placed around the module 10 at or near the two ends so that the banding material is in parallel relationship with the support rod 30. The banding material ensures that the folds and end flaps of the module remain substantially square and compressed during package, shipping and placement. Once installation of the furnace wall or ceiling is complete, the banding material is removed.
- a modular block fibre lining formed from a plurality of the modules 10 is typically installed in parquet fashion such that adjacent modules are turned 90° before installation.
- the present modular design represents a full furnace lining and as such can be used alone. However, if desired, a safety or backup liner layer of wallpaper insulation blanket can be used behind the module as further protection for the furnace shell.
- the mounting members 26 are end-slotted.
- the mounting members 26 may instead each have at least one hole therein.
- the members 26 are preferably sized to accept threaded studs (not shown) mounted to the furnace.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Prostheses (AREA)
Abstract
Description
- The present invention relates to thermally insulative modules for lining furnaces or like equipment.
- Several ceramic fibre modular designs for furnace linings presently exist. Many such modules comprise individual strips of refractory fiber blanket stacked edgewise and either cemented to an expanded metal substrate by means of ceramic cement or mortar, or held together by retainer members having a base portion running the length of the individual strips, as exemplified in US Patents Nos. 3 940 244 and 3 832 815. Other known modular designs are composed of a compressed continuous strip of pleated thermally insulative blanket with two of the outer pleats (cold face pleats) mechanically supported- by its metal frame. The supports run substantially the length of the fold or pleat. The module's metal frame allows it to successively attach to the adjacent modules. Once attached, the modules are mounted to the furnace walls using studs or fastening clips affixed to the walls, as exemplified by US Patents Nos. 4 001 996 and 4 103 469.
- However, problems still exist with certain types of insulation modules. Ceramic fibre blankets and, therefore, the modules made thereof are not mechanically strong and must be handled with great care to avoid tearing. Ceramic fibre blanket material is known to shrink when exposed to temperatures in excess of 1093°C (2000°F). Known modules utilising blankets of such material for lining of furnaces have encountered difficulties caused by said shrinkage of the material. Shrinkage has caused separations between folds within a module and between modules themselves, thereby exposing the furnace shell and critical retainer members to the heat of the interior of the furnace. Shrinkage has also caused the pleats of a folded blanket configuration to unfold and hence sag since not all cold faced pleats were supported.
- According to the present invention there is provided a thermally insulative module for lining a furnace or like equipment, the module comprising an insulative blanket folded into a plurality of inner folds and outer folds, the module being characterised by a support bracket having a base portion and a bracket mounting member and a protected bracket retaining member at each end thereof, the plurality of outer folds of the blanket being positioned between the retaining members of the support bracket, and a fold support rod extending through the plurality of outer folds of the blanket and attached to each of the bracket retaining members.
- Modules forming preferred embodiments of the present invention and described hereinbelow can be used to line furnace walls and ceilings. The modules can be attached to a furnace wall or ceiling having threaded studs and/or other fastening devices. The mounting members of the bracket can have slotted ends or holes to be used in conjunction with the threaded studs. The blanket of the preferred modules is under compression before and after installation. The preferred modules resist unravelling and/or lamination of the layers of insulative blanket.
- The invention will now be further described, by way of illustrative and non-limiting example, with reference to the accompanying drawings, in which
- Figure 1 is an isometric view of a module embodying this invention; and
- Figure 2 is an isometric view of another module embodying this invention.
- Each figure of the drawings illustrates a rod-anchored, accordion- fold, full-lining thermally
insulative module 10 to be used for insulating a furnace or other high temperature equipment. Themodule 10 is preformed from a folded or pleated ceramicfibre insulating blanket 12 and asupport bracket 20. Folds orpleats module 10. Thesupport bracket 20 has abase 22, and also has a protected upturned retainingmember 24 and amounting member 26 at each end thereof. Apleat support rod 30 extends between theretaining members 24 of eachsupport bracket 20. Therod 30 is threaded perpendicularly through eachcold face pleat 16 and is located near the outer or cooler face of themodule 10 and parallel thereto. - The outer or cooler face of the
module 10, also referred to as the cold face, is defined as that surface of the module which comes into contact with the furnace wall. The hot face of themodule 10 is defined as that surface of the module which is exposed to the interior of the furnace. Therefore, themodule 10 has both hot face or inner folds orpleats 14 and cold face or outer folds orpleats 16. Thepleat support rod 30 not only holds theceramic fibre blanket 12 in compression, but also serves to retain eachpleat 16 within themodule 10. Each end of thepleat support rod 30 is attached to a supportbracket retaining member 24. Each retainingmember 24 is situated between an outer fold and end flap of the module, whereby themember 24 is protected from the detrimental effects of the furnace environment. Any conventional means of attachment can be used. However, therod 30 will typically be end-threaded so that a nut at each end of the rod will keep the rod secured to thesupport bracket 20. - The folded ceramic
fibre insulating blanket 12 is formed from a suitable commercially available ceramic fibre sheet such as the type known under the trademark KAOWOOL and sold by The Babcock & Wilcox Company. It should be understood that the particular type of insulating blanket used is selected in accordance with the range of temperatures in the high temperature equipment in which the apparatus is to be installed. - The folded
blanket 12 is compressed prior to being placed within thesupport members 24 of thesupport bracket 20. This compression is calculated to compensate for thermal shrinkage of the-blanket material that occurs during use of the module. Banding material (not shown) is then placed around themodule 10 at or near the two ends so that the banding material is in parallel relationship with thesupport rod 30. The banding material ensures that the folds and end flaps of the module remain substantially square and compressed during package, shipping and placement. Once installation of the furnace wall or ceiling is complete, the banding material is removed. - A modular block fibre lining formed from a plurality of the
modules 10 is typically installed in parquet fashion such that adjacent modules are turned 90° before installation. The present modular design represents a full furnace lining and as such can be used alone. However, if desired, a safety or backup liner layer of wallpaper insulation blanket can be used behind the module as further protection for the furnace shell. - In both the illustrated embodiments the mounting
members 26 are end-slotted. The mountingmembers 26 may instead each have at least one hole therein. In all cases, themembers 26 are preferably sized to accept threaded studs (not shown) mounted to the furnace.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31204781A | 1981-10-16 | 1981-10-16 | |
US312047 | 1981-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0077608A1 true EP0077608A1 (en) | 1983-04-27 |
EP0077608B1 EP0077608B1 (en) | 1986-12-10 |
Family
ID=23209649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82304821A Expired EP0077608B1 (en) | 1981-10-16 | 1982-09-13 | Thermally insulative modules for lining furnaces or like equipment |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0077608B1 (en) |
JP (2) | JPS58501593A (en) |
AR (1) | AR230514A1 (en) |
AU (1) | AU557614B2 (en) |
BR (1) | BR8207875A (en) |
CA (1) | CA1210239A (en) |
DE (1) | DE3274678D1 (en) |
ES (1) | ES8403605A1 (en) |
IN (1) | IN162731B (en) |
MX (1) | MX161643A (en) |
PH (1) | PH24054A (en) |
WO (1) | WO1983001475A1 (en) |
ZA (1) | ZA826725B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0205757A1 (en) * | 1985-06-28 | 1986-12-30 | Didier-Werke Ag | Folded fibre block |
DE3640214C1 (en) * | 1986-11-25 | 1987-09-03 | Didier Werke Ag | Folded fibrous block |
US5010706A (en) * | 1986-10-17 | 1991-04-30 | Thermal Ceramics, Inc. | Insulation and the provision thereof |
USD910207S1 (en) | 2013-10-22 | 2021-02-09 | Certainteed Corporation | Manufactured siding panel with frame |
US11047134B2 (en) * | 2012-10-24 | 2021-06-29 | Certainteed Llc | Manufactured building panel |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190167B (en) * | 1986-05-09 | 1990-05-09 | Thomas James Twort | Furnace pipe insulation |
DE19815178C1 (en) * | 1998-04-04 | 1999-03-18 | Didier Werke Ag | Device for fixing fiber block to furnace wall |
CN112265862B (en) * | 2020-10-26 | 2024-05-31 | 徐正强 | Folding use structure of heat preservation cotton and similar products |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3819468A (en) * | 1971-06-28 | 1974-06-25 | Sander Ind Inc | High temperature insulation module |
US3832815A (en) * | 1973-01-29 | 1974-09-03 | Flinn & Dreffein Eng Co | Modular insulation of fibrous material |
FR2321101A1 (en) * | 1975-08-11 | 1977-03-11 | Thorpe Cy Jt | PREFABRICATED INSULATION BLOCKS FOR OVEN LINING |
FR2393254A1 (en) * | 1976-07-05 | 1978-12-29 | Ley Willi | Prefabricated furnace lining panels employing 'stacked' ceramic fibres - have lightweight steel strip support frames |
EP0013039A1 (en) * | 1978-12-28 | 1980-07-09 | Uhde GmbH | Device for lining the inner walls of industrial furnaces |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US282164A (en) * | 1883-07-31 | Albbbt chase | ||
US833629A (en) * | 1905-06-29 | 1906-10-16 | Orvey Price | Molded stone building-slab. |
FR607315A (en) * | 1925-09-25 | 1926-06-30 | Endicott Johnson Corp | Advanced floor and its method of establishment |
US1945564A (en) * | 1931-10-15 | 1934-02-06 | Soundex Corp | Wall and ceiling construction |
US3952470A (en) * | 1974-06-03 | 1976-04-27 | J T Thorpe Company | Furnace lining apparatus |
US4001996A (en) * | 1974-06-03 | 1977-01-11 | J. T. Thorpe Company | Prefabricated insulating blocks for furnace lining |
US4177616A (en) * | 1977-03-14 | 1979-12-11 | Lampert Albert J | Insulated furnace structure |
US4336086A (en) * | 1977-08-24 | 1982-06-22 | Rast James P | Method of lining a furnace with roll-type insulation |
-
1982
- 1982-09-02 JP JP57502934A patent/JPS58501593A/en active Pending
- 1982-09-02 WO PCT/US1982/001188 patent/WO1983001475A1/en unknown
- 1982-09-02 AU AU89532/82A patent/AU557614B2/en not_active Ceased
- 1982-09-02 BR BR8207875A patent/BR8207875A/en not_active IP Right Cessation
- 1982-09-13 IN IN697/DEL/82A patent/IN162731B/en unknown
- 1982-09-13 DE DE8282304821T patent/DE3274678D1/en not_active Expired
- 1982-09-13 EP EP82304821A patent/EP0077608B1/en not_active Expired
- 1982-09-14 ZA ZA826725A patent/ZA826725B/en unknown
- 1982-09-28 PH PH27919A patent/PH24054A/en unknown
- 1982-10-14 MX MX194767A patent/MX161643A/en unknown
- 1982-10-15 CA CA000413572A patent/CA1210239A/en not_active Expired
- 1982-10-15 ES ES516527A patent/ES8403605A1/en not_active Expired
- 1982-10-18 AR AR290997A patent/AR230514A1/en active
-
1985
- 1985-10-11 JP JP1985154461U patent/JPH0239200Y2/ja not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3819468A (en) * | 1971-06-28 | 1974-06-25 | Sander Ind Inc | High temperature insulation module |
US3832815A (en) * | 1973-01-29 | 1974-09-03 | Flinn & Dreffein Eng Co | Modular insulation of fibrous material |
FR2321101A1 (en) * | 1975-08-11 | 1977-03-11 | Thorpe Cy Jt | PREFABRICATED INSULATION BLOCKS FOR OVEN LINING |
FR2393254A1 (en) * | 1976-07-05 | 1978-12-29 | Ley Willi | Prefabricated furnace lining panels employing 'stacked' ceramic fibres - have lightweight steel strip support frames |
EP0013039A1 (en) * | 1978-12-28 | 1980-07-09 | Uhde GmbH | Device for lining the inner walls of industrial furnaces |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0205757A1 (en) * | 1985-06-28 | 1986-12-30 | Didier-Werke Ag | Folded fibre block |
US5010706A (en) * | 1986-10-17 | 1991-04-30 | Thermal Ceramics, Inc. | Insulation and the provision thereof |
DE3640214C1 (en) * | 1986-11-25 | 1987-09-03 | Didier Werke Ag | Folded fibrous block |
US11047134B2 (en) * | 2012-10-24 | 2021-06-29 | Certainteed Llc | Manufactured building panel |
US11828071B2 (en) | 2012-10-24 | 2023-11-28 | Certainteed Llc | Manufactured building panel assembly |
USD910207S1 (en) | 2013-10-22 | 2021-02-09 | Certainteed Corporation | Manufactured siding panel with frame |
Also Published As
Publication number | Publication date |
---|---|
JPS6163696U (en) | 1986-04-30 |
JPS58501593A (en) | 1983-09-22 |
PH24054A (en) | 1990-03-05 |
JPH0239200Y2 (en) | 1990-10-22 |
DE3274678D1 (en) | 1987-01-22 |
BR8207875A (en) | 1983-08-30 |
AR230514A1 (en) | 1984-04-30 |
ZA826725B (en) | 1983-07-27 |
ES516527A0 (en) | 1984-03-16 |
CA1210239A (en) | 1986-08-26 |
ES8403605A1 (en) | 1984-03-16 |
AU557614B2 (en) | 1986-12-24 |
AU8953282A (en) | 1983-05-05 |
WO1983001475A1 (en) | 1983-04-28 |
MX161643A (en) | 1990-11-29 |
EP0077608B1 (en) | 1986-12-10 |
IN162731B (en) | 1988-07-02 |
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