EP0066986A1 - Insulation for a furnace member - Google Patents
Insulation for a furnace member Download PDFInfo
- Publication number
- EP0066986A1 EP0066986A1 EP82302555A EP82302555A EP0066986A1 EP 0066986 A1 EP0066986 A1 EP 0066986A1 EP 82302555 A EP82302555 A EP 82302555A EP 82302555 A EP82302555 A EP 82302555A EP 0066986 A1 EP0066986 A1 EP 0066986A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clip
- projections
- tiles
- spring
- refractory
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000011065 in-situ storage Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000003303 reheating Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
- F27D1/141—Anchors therefor
-
- 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
- F27D3/02—Skids or tracks for heavy objects
- F27D3/022—Skids
Definitions
- This invention relates to an insulation for furnace members, particularly to the type utilizing a spring-clip for attachment to the member.
- the primary object of the instant invention is to provide a spring-clip type of insulation which is easy to install and has longer service life than any presently available.
- an improved insulation is provided for internally cooled furnace members.
- the product includes a generally C-shaped metal spring-clip substantially all of the inner surface of which is designed for making intimate contact with the exterior surface of the furnace member. This assures proper cooling of the clip itself and retention of its spring-like properties.
- the clip has inwardly protruding end portions partially closing its interior opening. The spacing between these end portions is intentionally made significantly less than the cross sectional dimension of the furnace member at the location to be abutted by the_, clip. This assures proper spring action after the clip is spread open for insertion transversely over, and on to the periphery, of the member.
- the springiness of the clip itself and the spacing just mentioned are correlated so as to permit both 1) spreading of the clip for insertion, and 2) retention of it at elevated furnace temperatures by continued spring action.
- the clip has a plurality of spaced outwardly extending projections, and at least two circumferentially segmented refractory tiles formed on its outer surface covering the projections.
- forming we refer to either conventional casting or pressing -techniques. It is important that the tiles be so formed as to completely cover the surface of the projections and thus be joined thereby to the clip so as to withstand furnace vibration.
- the tiles are spaced apart at adjacent ends remote from the C-opening, sufficiently to prevent their abutment when the clip is spread for insertion.
- An important feature of the invention is that, prior to formation of the tiles on the clip, an organic lubricant coating is applied to the outer clip surface.
- the lubricant prevents bonding of the tiles to the clip and excessive adhesion thereto.
- the lubricant preferably is of petroleum base and may be, for example, automotive grease.
- an insert is provided where it is desired to cover the entire periphery of the furnace member.
- the insert includes a metal clip, also having spaced.outward projections, and a refractory tile formed thereon. Since the insert is not required to flex for insertion no lubricant coating is required.
- the invention also provides a method for making insulation for furnace members. It includes forming a generally C-shaped metal spring-clip with spaced projections extending outwardly from it.
- the clip is of heat-treatable steel composition and the method includes heat treatment of the clip to Rockwell C 45/55 aim 50 after forming.
- An organic lubricant is applied to the outer clip surface prior to formation of refractory tiles covering the projections.
- the tiles are formed by either casting or pressing, in either case making intimate contact with and covering the projections. After this the tiles are cured by conventional methods to dry them.
- a method is provided for making a spring-clip type insulation which can be installed as a unit on the furnace member.
- the product of this invention includes spring-clip 10 having projections 12 on which refractory tiles 14, 16 are formed. It is essential that the clip have sufficient springiness to remain attached to member 17 (shown in Figure 3) at service temperature in the furnace. Where used on water cooled verticals, cross supports and skid pipes in steel slab reheating furnaces, it is important that .substantially all of the inner.surface of clip 10 maintain contact with the pipe so that the clip will remain cool and not lose spring action. Desirably, a heat treatable steel composition is used for the clip material so that it may be formed readily then austenit- ized, quenched and tempered to achieve desired springiness. Either SAE 1050 steel or 410 stainless steel are examples of compositions which may be used.
- Projections 12 serve to lock the tiles so that they will remain attached to the clip. It is desirable that they be of stainless steel (AISI Type 304 for example) so as to resist oxidation by the furnace atmosphere. A V-shape is preferred for best locking action.
- the prongs of V-projections 12' remote from clip opening 13 preferably lie in a plane normal to the axis of the pipe 17 (see Figure 1 or 3).
- the tiles may be of any refractory composition suitable for the temperatures to which they will be exposed in the furnaces.
- the invention is limited to tiles which are formed by casting or pressing ofparticulates, into a mold so as to be formed directly on to and covering the projections.
- Refractory of sufficient thermal resistance must be used to protect the clip.
- Adequate spacing 18 must be provided between the tiles at their adjacent lower ends as shown to permit spreading of the clip for insertion without abutment and breakage of the tile sections.
- An essential feature of the present invention is that prior to forming the tiles, an organic lubricant coating is applied to the outer surface of clip 10. This prevents adhesion and reduces the coefficient of friction between the tile and the clip.
- the clip when the clip is spread for insertion on to the pipe, it may flex without breaking the tiles.
- the tiles remain joined to the clip since they are formed directly on to and locked in place by projections 12.
- any organic lubricant or other conventional mold parting compound may be used, we prefer a petroleum base material such as automotive grease.
- an insert 20 is provided as shown in Figures 2 and 3.
- a metal clip 22 is provided of circular segmental shape and has spaced projections 24, 26.
- Refractory tile 28 is formed covering the projections so as to be joined to the clip. It will be quite apparent that insert clip 22 need not have the springiness which is essential for clip 10.
- Clip 22 has a dimple or button-like projection 27, ( Figures 2 and 5) protruding from its opposite ends for engaging mateable slots 29, ( Figure 4) in adjoining ends of spring clip 10. The total assembly is shown in Figure 3 mounted on pipe 17.
- Ceramic fiber blanket 32 is used to partially fill the space between tiles 14 and 16, and air-set mortar is used to fully close the joint and remains locked in place by grooves 34, 36 adjacent to the outer tile surfaces.
- Mateable step-joints 38, 40 which are sealed with refractory cement are provided on adjacent edges of tiles 14, 16 and insert tile 28. These mortared steps are essential for providing protection of the exposed portions of the clips from the furnace atmosphere and temperature. When the insulation is used on skid pipes, thus not permitting use of an insert for complete covering of the pipe, the exposed parts of the spring clip are covered by air-set refractory cement.
- the insulation is made first by rolling or forming a band to a shape and of dimensions closely conforming to that of the member on which it is to be mounted. Then, either as a separate step or part of the initial forming operation, the opposed ends of the clip are crimped to an intentionally and significantly smaller spacing than the cross sectional distance of the location to be abutted by those ends on the pipe or member on which the clip is to be mounted. This distance will depend on the springiness of the clip itself and other factors e.g. pipe diameter etc. For a 5-1/2 inch (14cm) pipe covered 270° of its circumference we crimp from a normal spacing of 4-1/2 inches (1 1 -4cm) to anywhere from 3-1/2 - 3-5/8 inches (8 ⁇ 9 - 9 ⁇ 2cm ) .
- the clip is heat treated by austenitizing at about 1650°F (899 °C), water or oil quenching as indicated and then tempering between 400-1000 o F (204 - 538 °C) to attain a Rockwell C hardness of 50.
- an essential feature involves applying an organic lubricant to outer surface 42 of clip 10. A mold is then placed around the clip and refractory material cast or pressed in place covering the projections. Finally, the refractory is cured by drying in conventional fashion forming an insulation which'can be easily mounted on furnace members.
- the invention would seemingly work quite well on support members of other than circular shape for example triangular, trapezoidal, or rectangular with side indentations.
- the only requirements would be that the member have sufficient indentation in its cross section to permit gripping action of a spring-clip thereon, and that the member have corners of sufficiently large curvature that the clip can tightly engage those areas to remain cooled by the member itself where it is used in high temperature environments.
- many different materials might be used for the spring-clip provided it has sufficient springiness to remain in position under the service conditions of the particular application. The furnace temperature, atmosphere and degree of vibration may be important factors in selection of the material.
- projections other than V-shape would presumably work.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Clamps And Clips (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Thermal Insulation (AREA)
- Element Separation (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Packages (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Resistance Heating (AREA)
Abstract
Description
- This invention relates to an insulation for furnace members, particularly to the type utilizing a spring-clip for attachment to the member.
- In general, there are two types of insulation commonly used on pipes in slab furnaces. In one, an imbedded metal clip or wire mesh is welded to the pipe. Though resistant to vibration, this type is time consuming and costly to install. The other type is simply hung on lugs secured to the pipe. Of course the lugs must be accurately positioned so that not much time is saved in installation.
- In U.S. 4,140,483 Errington, a spring-clip having outward radial projections is attached to the pipe. Subsequently, refractory tiles having holes for the projections are hung on the clip. The holes are then closed with air-set cement. The service life of this insulation is diminished by cracking of the cement, especially where substantial vibration is present, ultimately causing the tiles to fall off.
- The primary object of the instant invention is to provide a spring-clip type of insulation which is easy to install and has longer service life than any presently available.
- According to this invention an improved insulation is provided for internally cooled furnace members. The product includes a generally C-shaped metal spring-clip substantially all of the inner surface of which is designed for making intimate contact with the exterior surface of the furnace member. This assures proper cooling of the clip itself and retention of its spring-like properties. The clip has inwardly protruding end portions partially closing its interior opening. The spacing between these end portions is intentionally made significantly less than the cross sectional dimension of the furnace member at the location to be abutted by the_, clip. This assures proper spring action after the clip is spread open for insertion transversely over, and on to the periphery, of the member. The springiness of the clip itself and the spacing just mentioned are correlated so as to permit both 1) spreading of the clip for insertion, and 2) retention of it at elevated furnace temperatures by continued spring action.
- The clip has a plurality of spaced outwardly extending projections, and at least two circumferentially segmented refractory tiles formed on its outer surface covering the projections. By forming we refer to either conventional casting or pressing -techniques. It is important that the tiles be so formed as to completely cover the surface of the projections and thus be joined thereby to the clip so as to withstand furnace vibration. The tiles are spaced apart at adjacent ends remote from the C-opening, sufficiently to prevent their abutment when the clip is spread for insertion. An important feature of the invention is that, prior to formation of the tiles on the clip, an organic lubricant coating is applied to the outer clip surface. After forming of the refractory and then curing to dry it, the lubricant prevents bonding of the tiles to the clip and excessive adhesion thereto. The lubricant preferably is of petroleum base and may be, for example, automotive grease. Also, in preferred form an insert is provided where it is desired to cover the entire periphery of the furnace member. The insert includes a metal clip, also having spaced.outward projections, and a refractory tile formed thereon. Since the insert is not required to flex for insertion no lubricant coating is required.
- The invention also provides a method for making insulation for furnace members. It includes forming a generally C-shaped metal spring-clip with spaced projections extending outwardly from it. Preferably the clip is of heat-treatable steel composition and the method includes heat treatment of the clip to Rockwell C 45/55 aim 50 after forming. An organic lubricant is applied to the outer clip surface prior to formation of refractory tiles covering the projections. The tiles are formed by either casting or pressing, in either case making intimate contact with and covering the projections. After this the tiles are cured by conventional methods to dry them. Thus, a method is provided for making a spring-clip type insulation which can be installed as a unit on the furnace member.
-
- Figure 1 is a side elevation view of the insulation of the present invention;
- Figure 2 is a side elevation of an insert for completing coverage of the periphery of a furnace member to which the insulation of Figure 1 is attached;
- Figure 3 is a side elevation view of the insulations of Figures 1 and 2 shown as combined on a furnace member;
- Figure 4 is a view taken at IV-IV of Figure 1;
and - Figure 5 is a view-taken at V-V of Figure 2.
- Referring to Figures 1 and 3, the product of this invention includes spring-
clip 10 havingprojections 12 on whichrefractory tiles clip 10 maintain contact with the pipe so that the clip will remain cool and not lose spring action. Desirably, a heat treatable steel composition is used for the clip material so that it may be formed readily then austenit- ized, quenched and tempered to achieve desired springiness. Either SAE 1050 steel or 410 stainless steel are examples of compositions which may be used. We have found that a hardness aim of Rockwell C 50 after heat treatment provides sufficient springiness. It will be apparent that the clip must cover at least slightly more than 180° of a circular pipe in order to remain attached by spring action. Preferably, about 270° of the circumference is covered. -
Projections 12 serve to lock the tiles so that they will remain attached to the clip. It is desirable that they be of stainless steel (AISI Type 304 for example) so as to resist oxidation by the furnace atmosphere. A V-shape is preferred for best locking action. To prevent breakage of the tiles upon installation, the prongs of V-projections 12' remote from clip opening 13 preferably lie in a plane normal to the axis of the pipe 17 (see Figure 1 or 3). Thus, if the product is installed by using a board applied to the lower end of the tiles for pushing them on to the pipe this configuration withstands the forces applied. - The tiles may be of any refractory composition suitable for the temperatures to which they will be exposed in the furnaces. However, the invention is limited to tiles which are formed by casting or pressing ofparticulates, into a mold so as to be formed directly on to and covering the projections. Refractory of sufficient thermal resistance must be used to protect the clip.
Adequate spacing 18 must be provided between the tiles at their adjacent lower ends as shown to permit spreading of the clip for insertion without abutment and breakage of the tile sections. An essential feature of the present invention is that prior to forming the tiles, an organic lubricant coating is applied to the outer surface ofclip 10. This prevents adhesion and reduces the coefficient of friction between the tile and the clip. Thus, when the clip is spread for insertion on to the pipe, it may flex without breaking the tiles. The tiles remain joined to the clip since they are formed directly on to and locked in place byprojections 12. Although any organic lubricant or other conventional mold parting compound may be used, we prefer a petroleum base material such as automotive grease. - To complete-insulation of the entire circumference of vertical or cross supports, an
insert 20 is provided as shown in Figures 2 and 3. Ametal clip 22 is provided of circular segmental shape and has spacedprojections Refractory tile 28 is formed covering the projections so as to be joined to the clip. It will be quite apparent thatinsert clip 22 need not have the springiness which is essential forclip 10.Clip 22 has a dimple or button-like projection 27, (Figures 2 and 5) protruding from its opposite ends for engagingmateable slots 29, (Figure 4) in adjoining ends ofspring clip 10. The total assembly is shown in Figure 3 mounted on pipe 17.Ceramic fiber blanket 32 is used to partially fill the space betweentiles grooves joints tiles tile 28. These mortared steps are essential for providing protection of the exposed portions of the clips from the furnace atmosphere and temperature. When the insulation is used on skid pipes, thus not permitting use of an insert for complete covering of the pipe, the exposed parts of the spring clip are covered by air-set refractory cement. - The insulation is made first by rolling or forming a band to a shape and of dimensions closely conforming to that of the member on which it is to be mounted. Then, either as a separate step or part of the initial forming operation, the opposed ends of the clip are crimped to an intentionally and significantly smaller spacing than the cross sectional distance of the location to be abutted by those ends on the pipe or member on which the clip is to be mounted. This distance will depend on the springiness of the clip itself and other factors e.g. pipe diameter etc. For a 5-1/2 inch (14cm) pipe covered 270° of its circumference we crimp from a normal spacing of 4-1/2 inches (11-4cm) to anywhere from 3-1/2 - 3-5/8 inches (8·9 - 9·2cm ) . lie form the projections, desirably by welding Type 304 stainless rod to the clip surface in V-shapes. Then, the clip is heat treated by austenitizing at about 1650°F (899 °C), water or oil quenching as indicated and then tempering between 400-1000oF (204 - 538 °C) to attain a Rockwell C hardness of 50. As previously mentioned, an essential feature involves applying an organic lubricant to outer surface 42 of
clip 10. A mold is then placed around the clip and refractory material cast or pressed in place covering the projections. Finally, the refractory is cured by drying in conventional fashion forming an insulation which'can be easily mounted on furnace members. - Various alternative configurations may be contemplated. For example the invention would seemingly work quite well on support members of other than circular shape for example triangular, trapezoidal, or rectangular with side indentations. The only requirements would be that the member have sufficient indentation in its cross section to permit gripping action of a spring-clip thereon, and that the member have corners of sufficiently large curvature that the clip can tightly engage those areas to remain cooled by the member itself where it is used in high temperature environments. Similarly, many different materials might be used for the spring-clip provided it has sufficient springiness to remain in position under the service conditions of the particular application. The furnace temperature, atmosphere and degree of vibration may be important factors in selection of the material. Also, projections other than V-shape would presumably work. These and other embodiments are within the scope of the invention covered by the appended claims.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82302555T ATE12829T1 (en) | 1981-05-20 | 1982-05-19 | INSULATION OF A FURNACE PART. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26668681A | 1981-05-20 | 1981-05-20 | |
US266686 | 1981-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0066986A1 true EP0066986A1 (en) | 1982-12-15 |
EP0066986B1 EP0066986B1 (en) | 1985-04-17 |
Family
ID=23015591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82302555A Expired EP0066986B1 (en) | 1981-05-20 | 1982-05-19 | Insulation for a furnace member |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0066986B1 (en) |
JP (1) | JPS57194207A (en) |
AT (1) | ATE12829T1 (en) |
BR (1) | BR8202911A (en) |
CA (1) | CA1186609A (en) |
DE (1) | DE3263092D1 (en) |
DK (1) | DK225182A (en) |
ES (2) | ES8307351A1 (en) |
ZA (1) | ZA823216B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2719888A1 (en) * | 1994-05-13 | 1995-11-17 | Bloom Eng Europa Gmbh | Insulating body. |
US6887551B2 (en) | 2003-05-16 | 2005-05-03 | Exxonmobil Research & Engineering Co. | Anchoring system and snap-fit methodology for erosion resistant linings |
CN106906003A (en) * | 2017-04-21 | 2017-06-30 | 武汉科技大学 | A kind of coal gasifier support supporting plate |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1076473A (en) * | 1952-07-23 | 1954-10-27 | Maison Victor Nizet | Clamp for stuffing type thermal insulating coating reinforcement |
DE1550047A1 (en) * | 1967-03-10 | 1969-10-16 | Mannesmann Ag | Heat-insulated pipeline |
DE1929891A1 (en) * | 1969-06-12 | 1971-02-18 | Plibrico Co Gmbh | Refractory jacket for the ingot support - tubes in pusher or rocker-bar furnaces |
FR2157388A5 (en) * | 1971-10-13 | 1973-06-01 | Plibrico Co Gmbh | Refractory cladding process - for guide tubes of drawer type kilns etc |
US4140483A (en) * | 1976-05-06 | 1979-02-20 | Morgan Refractories Limited | Refractory insulation |
DE2940726A1 (en) * | 1979-10-08 | 1981-04-16 | Plibrico Co GmbH, 4000 Düsseldorf | Refractory cladding for travelling beam furnace supports - consists of disc stacks with disc halves locked by embedded half sleeves |
-
1982
- 1982-05-10 ZA ZA823216A patent/ZA823216B/en unknown
- 1982-05-12 CA CA000402818A patent/CA1186609A/en not_active Expired
- 1982-05-18 DK DK225182A patent/DK225182A/en not_active Application Discontinuation
- 1982-05-19 BR BR8202911A patent/BR8202911A/en unknown
- 1982-05-19 JP JP57083325A patent/JPS57194207A/en active Pending
- 1982-05-19 ES ES512346A patent/ES8307351A1/en not_active Expired
- 1982-05-19 DE DE8282302555T patent/DE3263092D1/en not_active Expired
- 1982-05-19 AT AT82302555T patent/ATE12829T1/en not_active IP Right Cessation
- 1982-05-19 EP EP82302555A patent/EP0066986B1/en not_active Expired
-
1983
- 1983-02-14 ES ES1983270331U patent/ES270331Y/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1076473A (en) * | 1952-07-23 | 1954-10-27 | Maison Victor Nizet | Clamp for stuffing type thermal insulating coating reinforcement |
DE1550047A1 (en) * | 1967-03-10 | 1969-10-16 | Mannesmann Ag | Heat-insulated pipeline |
DE1929891A1 (en) * | 1969-06-12 | 1971-02-18 | Plibrico Co Gmbh | Refractory jacket for the ingot support - tubes in pusher or rocker-bar furnaces |
FR2157388A5 (en) * | 1971-10-13 | 1973-06-01 | Plibrico Co Gmbh | Refractory cladding process - for guide tubes of drawer type kilns etc |
US4140483A (en) * | 1976-05-06 | 1979-02-20 | Morgan Refractories Limited | Refractory insulation |
DE2940726A1 (en) * | 1979-10-08 | 1981-04-16 | Plibrico Co GmbH, 4000 Düsseldorf | Refractory cladding for travelling beam furnace supports - consists of disc stacks with disc halves locked by embedded half sleeves |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2719888A1 (en) * | 1994-05-13 | 1995-11-17 | Bloom Eng Europa Gmbh | Insulating body. |
BE1008428A3 (en) * | 1994-05-13 | 1996-05-07 | Bloom Eng Europa Gmbh | Insulation body. |
US6887551B2 (en) | 2003-05-16 | 2005-05-03 | Exxonmobil Research & Engineering Co. | Anchoring system and snap-fit methodology for erosion resistant linings |
CN106906003A (en) * | 2017-04-21 | 2017-06-30 | 武汉科技大学 | A kind of coal gasifier support supporting plate |
Also Published As
Publication number | Publication date |
---|---|
DK225182A (en) | 1982-11-21 |
ES270331Y (en) | 1984-02-16 |
DE3263092D1 (en) | 1985-05-23 |
BR8202911A (en) | 1983-05-03 |
JPS57194207A (en) | 1982-11-29 |
ZA823216B (en) | 1983-03-30 |
ATE12829T1 (en) | 1985-05-15 |
ES512346A0 (en) | 1983-06-16 |
ES8307351A1 (en) | 1983-06-16 |
ES270331U (en) | 1983-07-16 |
EP0066986B1 (en) | 1985-04-17 |
CA1186609A (en) | 1985-05-07 |
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