US3819468A - High temperature insulation module - Google Patents

High temperature insulation module Download PDF

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Publication number
US3819468A
US3819468A US00157433A US15743371A US3819468A US 3819468 A US3819468 A US 3819468A US 00157433 A US00157433 A US 00157433A US 15743371 A US15743371 A US 15743371A US 3819468 A US3819468 A US 3819468A
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US
United States
Prior art keywords
block
insulation
strips
face
mat
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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.)
Ceased
Application number
US00157433A
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English (en)
Inventor
J Mase
R Sauder
G Kendrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thermal Ceramics Inc
Original Assignee
Sauder Industries Inc
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Filing date
Publication date
Application filed by Sauder Industries Inc filed Critical Sauder Industries Inc
Priority to US00157433A priority Critical patent/US3819468A/en
Priority to CA144,324A priority patent/CA964058A/en
Priority to GB2733472A priority patent/GB1396724A/en
Priority to BR004236/72A priority patent/BR7204236D0/pt
Priority to NL7208434.A priority patent/NL158610B/xx
Priority to NO2211/72A priority patent/NO130704C/no
Priority to FR7222831A priority patent/FR2199858A5/fr
Priority to IT51154/72A priority patent/IT958523B/it
Priority to SE7208435A priority patent/SE380615B/xx
Priority to DE19722231658 priority patent/DE2231658C3/de
Priority to JP6413472A priority patent/JPS5532996B1/ja
Priority to DE7224179U priority patent/DE7224179U/de
Priority to AR242802A priority patent/AR200844A1/es
Priority to BE785513A priority patent/BE785513A/xx
Publication of US3819468A publication Critical patent/US3819468A/en
Application granted granted Critical
Priority to CA267,374A priority patent/CA1039947B/en
Priority to US06/949,386 priority patent/USRE32732E/en
Priority to HK524/79A priority patent/HK52479A/xx
Priority to JP2417580A priority patent/JPS55165481A/ja
Priority to US06/257,995 priority patent/USRE33463E/en
Priority to JP56104332A priority patent/JPS5747124A/ja
Priority to US06/492,676 priority patent/US4574995A/en
Assigned to SAUDER ENERGY SYSTEMS, INC., A DE CORP reassignment SAUDER ENERGY SYSTEMS, INC., A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SAUDER INDUSTRIES, INC., A KS CORP
Assigned to SAUDER ENERGY SYSTEMS, INC. reassignment SAUDER ENERGY SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SAUDER INDUSTRIES, INC.
Assigned to BABCOCK & WILCOX COMPANY THE, A CORP OF DE reassignment BABCOCK & WILCOX COMPANY THE, A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SAUDER ENERGY SYSTEMS, INC., 220 WEAVER ST., EMPORIA, KS 66801, A CORP OF DE
Assigned to THERMAL CERAMICS INC., A CORP OF DELAWARE reassignment THERMAL CERAMICS INC., A CORP OF DELAWARE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BABCOCK & WILCOX COMPANY, THE
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F27D1/0009—Comprising ceramic fibre elements
    • F27D1/002—Comprising ceramic fibre elements the fibre elements being composed of adjacent separate strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/902—High modulus filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24132—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in different layers or components parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24215—Acute or reverse fold of exterior component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249923—Including interlaminar mechanical fastener

Definitions

  • ABSTRACT A ceramic fiber mat attached to the interior wall or surface of a high temperature chamber or furnace or adapted to overlie an intermediate insulating member positioned between the mat and a furnace wall, the fibers in the mat lying in planes generally perpendicular to the wall, the mat constituting an improved insulation for the wall where the interior of the chamber or furnace will be operating at temperatures in excess of 1600 F.
  • the present invention relates to a method and apparatus for insulating the interior of a high temperature furnace and more particularly to a ceramic fiber mat constituting the hot face of the insulation and wherein substantially all of the fibers in the fiber mat lie in planes which are generally perpendicular to the various walls of the furnace.
  • the fibers which constitute the blanket are oriented in planes which are generally parallel to the longitudinal direction of formation of the blanket or sheet.
  • lengths of ceramic fiber blanket are placed against a furnace wall or overlying an intermediate insulating member which, in turn, would be attached to the furnace wall, the fibers will then be lying in planes generally parallel to the furnace wall.
  • the resulting insulation is necessarily low temperature insulation because the pipe is in direct contact with the heating or cooling medium which it carries; the insulation is used on the external surface of the body or pipe to be insulated; the sole purpose in arranging the strips in an end or edgewise exposure of the fibers is to permit compression of the strips so that, after one side edge is secured in place by means of the backing strip, advantage can be taken of the relatively greater expansibility along the unsecured edge.
  • the present invention involves the use of a ceramic fiber mat which can be applied either directly to the interior of a high-temperature furnace or to an intermediate insulating member which, in turn, is attached to one of the furnace walls.
  • wall should be construed as covering any side wall or ceiling, removable or fixed, the area surrounding any access opening and any other surface on the interior of the hightemperature chamber where insulation is required or desired.
  • furnace should be construed as covering any high-temperature chamber, oven, heater, kiln or duct with the understanding that the insulation is always internal and always high-temperature, namely capable of operating at temperatures in excess of l600 F.
  • the ceramic fiber mat is preferably made up of strips which are cut transversely from a length of ceramic fiber blanketing which is commercially available.
  • the strips are cut from the fiber blanket in widths that represent the linear distance from the cold face to the hot face of the insulating fiber mat.
  • the strips which are cut from the blanket are placed on edge and laid lengthwise adjacent each other with a sufficient number of strips being employed to provide a mat of the desired width.
  • the thickness of the fiber blanket from which the strips are cut will determine the number of strips required to construct the mat.
  • the strips can be fastened together by wires, or by ceramic cement or mortar which is preferably employed in the region of the cold face of the mat.
  • the mat can be applied to the furnace wall or to an intermediate member by means of a stud welding method or by ceramic cement, mortar, or the like.
  • the present invention has partic-, ular application for the internal insulation of furnace walls of high temperature furnaces.
  • high temperature will mean temperatures in excess of 1600 F and, preferably, in the range of l600 F to 2800 F.
  • the ceramic fiber strips referred to herein are cut from a ceramic fiber blanket which is commercially available from several different manufacturers; these blankets are manufactured under the trademarks or tradenames Kaowool (Babcock & Wilcox), Fiber-Frax (Carborundum Co.), Lo-Con (Carborundum C0,), and Cero-Felt (Johns Manville Corp.). Most of these ceramic fiber blankets have an indicated maximum operating temperature of about 2300 F.
  • the end or edge fiber exposure provided by the present invention not only provides an improved insulation up to the maximum indicated operatingtemperatures suggested by the manufacturers, but because devitrification and its deleterious effects are largely eliminated, also permits operation up to about 2800 F.
  • the present invention also provides an insulation which will maintain the outside (cold face) of the furnace within an acceptable range. It is recognized that the minimum external temperature will be dependent upon a number of different factors including, but not limited to, the type, thickness and strength of the outside furnace wall; ambient temperature conditions outside the furnace wall. The use of the present invention, however, will provide an outside temperature varying between 200 and 350 F which is considered to be an acceptable range, the temperature being measured in still air at 83 F.
  • Another advantage which accrues from the use of the fiber blanket (or strips thereof) in the end or edge exposure of the fibers is that the resulting mat has a certain resiliency in a direction parallel to the insulated face.
  • metallic fasteners are employed to attach the mat or composite block to the interior wall of the furnace or oven by burying" or imbedding the fastener in the insulating member
  • this natural resiliency of the material will tend to keep the ends of the fastening elements completely covered at all times; this is true even if a tool is inserted in or through the fiber material to engage the metallic fastener for turning or welding purposes; after the tool has been withdrawn the natural resiliency of the fibrous material, as presently oriented, will cause the material to spring back and completely cover the outer end of the metallic fastening member.
  • FIG. 1 is a fragmentary plan view of an insulating mat made from strips of a ceramic fiber blanket
  • FIG. 2 is a fragmentary side elevation of the ceramic fiber mat shown in FIG. 1;
  • FIG. 3 is an end elevation of the ceramic fiber mat shown in FIG. 1; I
  • FIG. 4 is a plan view of another embodiment of a ceramic fiber mat made in accordance with the present invention.
  • FIG. 5 is a side elevation of the ceramic fiber mat shown in FIG. 4 with certain internal connecting members shown in dotted lines and further showing the association of the resulting insulating member with a furnace wall;
  • FIG. 6 is an end elevation of the ceramic fiber mat shown in FIG. 5;
  • FIG. 7 is a view similar to FIG. 6 showing a method of stud welding of the resulting insulating member to a furnace wall;
  • FIG. 8 is an enlarged and fragmentary detail view, with certain parts in cross-section, of the stud, nut and associated structure involved;
  • FIG. 9 is a view similar to'the lower portion of FIG. 8 showing the relationship of the various parts following the welding operation
  • FIG. 10 is an enlargement, on a slightly larger scale, of the retaining ring shown in FIG. 8;
  • FIG. 11 shows a parquet-type arrangement of insulating members on a furnace wall
  • FIG. 12 shows an enlargement of insulating members on a furnace wall with spaces between adjacent members being filled with separateinsulating elements
  • FIG. 13 shows one embodiment of a separate insulating element to be inserted between adjacent insulating members
  • FIG. 14 is another embodiment of a separate insulating element to be inserted between adjacent insulating members.
  • FIG. 15 is still another embodiment of a separate insulating element to be inserted between adjacent insulating members.
  • FIG. 1 shows a portion of the outer surface (hot face) of an insulating mat, generally designated by the reference character 20, composed of a plurality of strips 22 which are cut transversely from a ceramic fiber blanket (not shown).
  • these ceramic fiber blankets are generally provided in widths of several feet, of thicknesses generally ranging from one-sixteenth of an inch to three inches and of almost any desiredlength; the manufacturer generally rolls up the blankets lengthwise so that, when supplied, these blankets are in the form of rolls whose diameters are dependent upon the length of material in the roll.
  • the strips 22 are cut from the fiber blanket they are cut in a direction of the thickness perpendicular to the width and length so that the lowermost strip 22 shown in FIG. 1 has a dimension T which represents the thickness of the fiber blanket from which the strips 22 are cut.
  • the number of strips required will depend upon the thickness T of the fiber blanket from which the strips are cut. If a fiber blanket could be provided of thickness twice that of T, then only one half of the number of strips shown in FIG. 1 would be required. Furthermore, if it were possible to provide a fiber blanket having a thickness equal to the width of the resulting block or mat therefor, then only one such strip would be employed in connection with each insulating block.
  • the strips 22 are held together by any convenient means; as best shown in FIGS. 1 to 3, the strips 22 are held together by means of a plurality of stainless steel wires 24 which run transverse to the strips approximately one-half inch from and parallel to the cold face 26 of the mat.
  • the ends of the wires 24 are bent at right angles as shown so as to be retained in.position.
  • Various methods and means can be used in conjunction with these wires 24 to attach the mat to a sheet or block of backing type insulation 28 (see FIGS. 5 and 6); for example, a plurality of hairpin-type devices can be placed over the wires 24 at various positions along their length so as to project down below the cold face 26 of the mat 20.
  • these pins 30 will be driven into the block of backing type insulation 28 and, preferably, these hairpin devices 30 will be of the selfclenching type when they are urged against a hard surface as will appear hereinafter.
  • FIGS. 4 and 7 are represented as having a width of approximately one foot and a length of possibly several feet, the preferred shape is shown in FIGS. 4 to 7.
  • the resulting insulating member shown in these figures would have a nominal twelve inch by twelve inch face size and a 2300 F temperature rating.
  • the actual face size will be 12%"Xl 2%", the additional 1" insuring fullness in the installed insulation while providing a net twelve inch by twelve inch coverage.
  • Intermediate strips 22 and the outer strips 34 (later to be described) are cut to their respective sizes from one inch thick ceramic fiber blanket.
  • the block of insulation 28 is mineral block insulation which, in this case, is cut to a size two inches thick, ten inches wide and twelve inches long.
  • Parts 34 and 22 are now laid side by side to form the hot face and are secured together by means of the stainless steel wires 24 which are bent ninety degrees at the ends to hold them in place. As shown in FIGS. 4 and 5, two such wires 24 are provided for the insulating member shown in these figures, although additional number of wires could be provided if desired.
  • the stud comprises a central shank 38 having nut 40 threadedly mounted at the upper end thereof.
  • a washer 42 is provided on the shank 38 immediately below the nut 40. When installed, the washer 42 will rest against the upper surface of the block 28.
  • the lower end of the shank 38 is provided with a stud tip 44 of relatively smaller cross sectional area.
  • Also mounted on the lower end of the shank 38 are a ring retainer 46 received in the groove 48 and a ring-shaped ceramic arc shield 50 which is secured to the ring 46 by cement or in any other suitable manner.
  • the resulting insulation member now complete, is ready for installation against a furnace wall 32 by means of a stud welding process which is more fully described and claimed in the patent entitled Method and Apparatus for Stud Welding referred to above.
  • the method and apparatus for stud welding forms no part of the present invention but is described briefly hereinafter merely to show one manner of attachment of the insulating member 20' to a furnace wall.
  • a stud welding gun 52 is inserted into the central seam between the rniddle strips 22' until the lower end of the gun engages the nut 40 of the stud. The stud gun is triggered and current flows into the shank 38 and into the tip 44.
  • the tip 44 because of its relatively small cross sectional area burns away and thus starts an arc.
  • the stud shank 38 does not itself move at first because it is supported by the self-locking ring retainer 46 which is retained in the groove 48 as indicated heretofore.
  • the ring retainer 46 is provided with a plurality of radial fingers 54 which project into the recess 48 to hold the ring 46 in position.
  • the intense heat of the arc burns away the fingers 54, thus allowing the stud shank 38 to plunge into the molten metal formed by the arc. At this point, the weld is completed and the gun can be withdrawn.
  • the gun 52 serves a secondary function as a wrench for the nut.
  • end strips 34 of the insulating member 20' are preferably provided with a plurality of one inch deep cuts 56 spaced approximately one inch apart from each other so as to relieve possible shrinkage stresses on parts 34 only.
  • the blocks 20' of FIGS. 4 through 6 may be desirable to arrange the blocks 20' of FIGS. 4 through 6 in such a manner that the strips of adjacent members are at right angles to each other to give a resulting criss-cross appearance similar to that of parquet flooring.
  • the arrangement of the fibers is such that they are oriented essentially in planes which are perpendicular to the furnace wall. This tends to eliminate or minimize the occurance of cracks which result from heat shrinkage of ceramic fibers.
  • the arrangement shown in FIG. 11 tends to minimize or offset lineal shrinkage of the strips themselves.
  • the method and apparatus for insulating a furnace wall must be adaptable to walls which do not correspond, dimensionally, to the usage of nominal twelve inch by twelve inch insulating members. Also, it is recognized that the method and apparatus for insulating a furnace should be adaptable to furnaces which have irregularly shaped burner blocks and flue openings. As shown in FIG. 12, it is possible to arrange and attach a plurality of insulating members to the surface 32' of a furnace not readily adaptable for the close end-toend, side-to-side, arrangement shown in FIG. 11. In the case of FIG. 12, spaces 58 are provided between adjacent insulating members 20 in longitudinal or transverse or both, directions, depending upon the dimensional limitations of the furnace.
  • the resulting spaces 58 can now be filled with specially folded ceramic fiber blankets such as shown in FIGS. l3, l4 and 15.
  • the three fillers shown in the latter three figures are constructed in substantially the same way as the strips 22; that is, they are cut from a one inch thickness of four pound density ceramic fiber blanket and folded over.
  • FIG. 15 there would be a single sheet 60 which is folded once so that its upper edges 62 provide the same type of end or edge fiber exposure referred to herein. If the resulting space is larger than two inches wide, then it is possible to go to the configuration shown in FIG. 13 which is comprised of two strips 64 and 66, which are cut in the same manner described above.
  • the central strip 66 is relatively narrow in a vertical direction and the outer strip 64 is sufficiently wide that it can be folded around the central strip 66 as shown, the upper surfaces of strips 64 and 66 both providing the end or edge fiber arrangement referred to above.
  • FIGS. l3, l4 and 15 can be held in place by ceramic cement, stainless steel wire or by the frictionbetween the fibers alone.
  • the mat of FIG. 1 or the composite block of FIG. 4 can be attached to a furnace wall by means of mortar, ceramic cement or various metallic fasteners. Since the ceramic cement or mortar will generally be located adjacent the cold face of the insulating member, there should be no particular high temperature problem as far as the cement or mortar is concerned; however, where metallic fasteners are concerned, it is generally recognized that alloy pins,
  • bolts, washers and screws which could be used as fasteners have a maximum temperature limit in the range of 2000 to 2100 F.
  • the mat of FIG. 1 could be applied directly to a furnace wall by means of ceramic cement or mortar, it is possible to precondition the cold face of the mat to permit the use of the stud welding method of attachment disclosed herein.
  • a layer of cement or mortar is embedded in the mat along the cold face thereof and allowed to harden, it is obvious that the welding technique and fasteners described in connection with FIGS. 7 to 10 could be employed, although a shorter shank 38 obviously would be necessary.
  • the making of such a cement or mortar layer at the cold face of the mat could also be done in connection with the use of a high temperature cloth or stainless steel wire mesh which would be applied to or imbedded in the mortar layer at the cold face of the mat to improve the fastening capabilities thereof.
  • a suitable insulating block 20' designed for operation at 1800 F is one where the backing block or mineral block 28 is about two inches in thickness and the strips 22' are approximately one inch in width giving a total width of the block, from the cold face to the hot face thereof, of about three inches.
  • a suitable insulating block 20' designed for operation at 2600 F is one where the mineral block 28 is also two inches in thickness but where the strips 22 are four inches in thickness giving an overall dimension of six inches from the cold face to the hot face.
  • the block 28 has been referred to as a mineral block whose composition and properties are well recognized in the art, it is also possible to use asbestos block or calcium silicate block, these blocks being relatively rigid, especially as compared to the fiber mat or strips, so as to provide relatively rigid backing material for the mat.
  • the strips 22 or 22' of the ceramic fiber mat 20 or 20', respectively, are preferably cut from a ceramic fiber blanket having a density of four pounds per cubic foot. It is understood that the manufacturers provide ceramic fiber blankets which are available in densities ranging generally from three to fourteen pounds per cubic foot. In the specific examples referred to herein, the ceramic fiber material has a density of four pounds per cubic foot.
  • the outside (cold face) of the furnace is at a minimum temperature.
  • this minimum temperature will be dependent upon a number of different factors including, but not limited to, the type, thickness and strength of the outside furnace wall; and prevailing air currents outside of the furnace wall.
  • the use of the present invention will'provide an outside temperature varying between 200 F and 350 P which is considered to be an acceptable range.
  • the preferred embodiment of the present invention describes the high-temperature insulating fibers which constitute the mat as ceramic fibers.
  • this invention should not be tied down to any precise definition of ceramic; any high temperature insulating fiber which possesses properties similar to the ceramic fibers indicated herein and capable of operating above l600 F could be used in conjunction with the present invention and should be considered as falling within the scope thereof.
  • An insulation module for lining the interior walls of a furnace comprising a rigid block of refractory material having two opposed flat sides, one side being the cold face for attachment to the furnace wall and the other side being the hot face for exposure to the furnace heat, a resilient fiber insulation mat forming at least the hot face and being held flat within the rigid block prior to installation on the furnace wall, the fibers in the insulation mat being generally randomly oriented in planes, such planes being substantially perpendicular to the hot face.
  • An insulation module according to claim 1 further comprising a hard surface self-contained within the rigid block prior to installation on the furnace wall and being hidden beneath the hot face and against which a fastener can bear to secure the insulation module to the furnace wall.
  • An insulation module according to claim 1 further comprising an internal fastener self-contained within the rigid block prior to installation on the furnace wall and being hidden beneath the hot face, whereby the cold face of the insulation module may be fastened to the furnace wall without direct exposure of the fastener to the heat at the hot face.
  • An insulation module according to claim 1 further comprising a rigid base forming the cold face of the rigid block, the fiber insulation mat being affixed to the rigid base.
  • An insulation module according to claim 1 wherein the fiber insulation mat includes a number of strips of fiber insulation cut from a fiber blanket and arranged in side-by-side relation.
  • An insulation module according to claim 6 further including strips of fiber insulation attached to the side edges of the rigid block.
  • An insulation module for lining the walls of a high temperature furnace comprising a rigid block of refractory material pre-assembled prior to installation on the furnace wall, the block having two opposed fiat sides, one side being the cold face for attachment to the furnace wall and the other side being the hot face for exposure to furnace heat, a rigid base member forming the cold face within the rigid block, a resilient fiber insulation mat being affixed flat to the base member and forming the hot face, the fibers in the insulation mat being generally randomly oriented in planes, such planes being substantially perpendicular to the hot face.
  • An insulation module according to claim 9 further comprising an internal metallic fastener selfcontained within the rigid block prior to installation on the furnace wall and hidden beneath the hot face, whereby the cold face of the insulation module may be fastened to the furnace wall without direct exposure of the fastener to the high temperature heat at the hot face.
  • An insulation module according to claim 9 wherein the fiber insulation mat includes a number of strips of fiber insulation cut from a fiber blanket and arranged in side by side relation.
  • An insulation module according to claim 12 including strips of fiber insulation attached to the side edges of the rigid block.
  • An insulation module according to claim 14 further including staples surrounding the wires extending through the strips of fiber insulation and extending into the base member for attaching the fiber insulation mat thereto.
  • An insulation module according to claim 9 including a washer centrally located against the face of the base member at the interface between the base member and the fiber insulation mat, the washer being provided with a central hole, the base member being provided with a hole in alignment with the hole in the washer and extending through the base member to the hot face, a bolt extended through the holes in the washer and the base member, and a threaded nut threadedly engaging the end of the bolt lying adjacent the washer.
  • An insulation module for lining the walls of a high temperature furnace comprising a rigid block of refractory material being preassembled prior to installation on the furnace wall, the block having two opposed major faces, one major face being the cold face for attachment to the furnace wall and the other major face being the hot face for exposure to furnace heat, a rigid base member forming the cold face within the rigid block, a plurality of strips of resilient fiber insulation being arranged in side by side relation and being affixed upon the base member on the side opposite the cold face to form the hot face of the rigid block, the strips being cut from a fiber blanket and being arranged in such a manner that the fibers in such strips are generally randomly oriented in planes, the planes being substantially perpendicular to the cold face.
  • An insulation module according to claim 17 further comprising additional strips of such fiber insulation affixed around the side edges of the base member adjacent the hot face and being flush with the hot face.
  • An insulation module for lining the walls of a high temperature furnace and being preassembled prior to installation comprising:
  • a relatively rigid block of refractory material having a flat side for attachment to the furnace wall as the cold face, said block having substantially centrally located opening extending at right angles to the cold face;
  • a washer disposed on the surface of said block remote from said hot face and having a hole therein aligned with the opening in said block;
  • An insulation-module for lining the walls of a high temperature furnace and being pre-assembled prior to installation comprising:
  • a substantially rectangular mineral block having a cold face for attachment to the furnace wall, said mineral block having a substantially centrally located opening extending through the thickness of said block;
  • a washer disposed on the surface of said mineral block opposite the cold face and having a hole therein aligned with the opening in said mineral block;
  • a metallic stud having a shank portion extending through said hole in said washer and through said opening to the cold face of said mineral block, the end of said stud adjacent said opposite surface of said mineral block terminating in a stud tip of relatively smaller cross-sectional area than said shank portion, said shank portion leaving a groove therein adjacent said stud tip, a ring retainer surrounding said shank portion and having radially inwardly projecting fingers received in said groove;
  • a ring-shaped arc shield surrounding said stud tip and being attached to said ring retainer, a threaded nut threadedly engaging the other end of said stud and overlying said washer;
  • wire fasteners extending transversely through said fiber strips and being bent at the opposite ends thereof to hold said strips together, said wire fasteners being substantially parallel to each other and to said one surface and being located in said fiber mat adjacent the interface between said mat and said mineral block;

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)
  • Thermal Insulation (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
US00157433A 1971-06-28 1971-06-28 High temperature insulation module Ceased US3819468A (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
US00157433A US3819468A (en) 1971-06-28 1971-06-28 High temperature insulation module
CA144,324A CA964058A (en) 1971-06-28 1972-06-09 Furnace lining module
GB2733472A GB1396724A (en) 1971-06-28 1972-06-12 Insulation of high temperature furnaces
BR004236/72A BR7204236D0 (pt) 1971-06-28 1972-06-20 Processo de aplicar isolamento interno a uma parede de forno isolamento interno e membro isolante
NL7208434.A NL158610B (nl) 1971-06-28 1972-06-20 Oven voorzien van een isolerende binnenbekleding.
NO2211/72A NO130704C (xx) 1971-06-28 1972-06-21
FR7222831A FR2199858A5 (xx) 1971-06-28 1972-06-23
IT51154/72A IT958523B (it) 1971-06-28 1972-06-26 Metodo per produrre un dispositivo termoisolante per forni o simili e dispositivo ottenuto
SE7208435A SE380615B (sv) 1971-06-28 1972-06-27 Infodringselement av eldfast material for en ugns innerveggar samt sett att framstella detta
BE785513A BE785513A (nl) 1971-06-28 1972-06-28 Inwendige isolatie voor een oven.
DE7224179U DE7224179U (de) 1971-06-28 1972-06-28 Hochtemperatur-isolationsblock fuer die innenwandauskleidung von oefen
AR242802A AR200844A1 (es) 1971-06-28 1972-06-28 Revestimiento para uso en hornos industriales
DE19722231658 DE2231658C3 (de) 1971-06-28 1972-06-28 Aus Platten bestehende Innenwandauskleidung für Industrieöfen
JP6413472A JPS5532996B1 (xx) 1971-06-28 1972-06-28
CA267,374A CA1039947B (en) 1971-06-28 1976-12-08 Furnace lining module
US06/949,386 USRE32732E (en) 1971-06-28 1978-10-06 Method for providing high temperature internal insulation
HK524/79A HK52479A (en) 1971-06-28 1979-08-02 Insulation of high temperature furnaces
JP2417580A JPS55165481A (en) 1971-06-28 1980-02-29 Lining of furnace inner wall
US06/257,995 USRE33463E (en) 1971-06-28 1981-04-27 High temperature insulation module
JP56104332A JPS5747124A (en) 1971-06-28 1981-07-03 Heat insulating module for furnace inner wall
US06/492,676 US4574995A (en) 1971-06-28 1983-05-09 Method for protecting the walls of a furnace at high temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00157433A US3819468A (en) 1971-06-28 1971-06-28 High temperature insulation module

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US44580774A Division 1971-06-28 1974-02-25
US06/257,995 Reissue USRE33463E (en) 1971-06-28 1981-04-27 High temperature insulation module

Publications (1)

Publication Number Publication Date
US3819468A true US3819468A (en) 1974-06-25

Family

ID=22563696

Family Applications (1)

Application Number Title Priority Date Filing Date
US00157433A Ceased US3819468A (en) 1971-06-28 1971-06-28 High temperature insulation module

Country Status (14)

Country Link
US (1) US3819468A (xx)
JP (3) JPS5532996B1 (xx)
AR (1) AR200844A1 (xx)
BE (1) BE785513A (xx)
BR (1) BR7204236D0 (xx)
CA (2) CA964058A (xx)
DE (1) DE7224179U (xx)
FR (1) FR2199858A5 (xx)
GB (1) GB1396724A (xx)
HK (1) HK52479A (xx)
IT (1) IT958523B (xx)
NL (1) NL158610B (xx)
NO (1) NO130704C (xx)
SE (1) SE380615B (xx)

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JPS49107006A (xx) * 1973-02-12 1974-10-11
US3928097A (en) * 1974-03-01 1975-12-23 Sauder Industries Process and machine for manufacturing insulation modules
US3930916A (en) * 1973-06-28 1976-01-06 Zirconal Processes Limited Heat resistant panels
US3968281A (en) * 1974-07-15 1976-07-06 Sybron Corporation Filter molded heating and/or insulating member
US3990203A (en) * 1976-03-29 1976-11-09 Greaves James R Insulated ceramic fiber panels for portable high temperature chambers
US4001996A (en) * 1974-06-03 1977-01-11 J. T. Thorpe Company Prefabricated insulating blocks for furnace lining
US4012877A (en) * 1974-06-03 1977-03-22 J. T. Thorpe Company Prefabricated insulating structure for insulating a corner in a furnace
JPS5318609A (en) * 1976-08-05 1978-02-21 Isolite Babcock Refractories Refractory and heat insulating wall
US4086737A (en) * 1977-01-07 1978-05-02 Johns-Manville Corporation Refractory fiber blanket module with heat shrinkage compensation
DE2749126A1 (de) * 1976-11-05 1978-05-11 Kohaszati Gyarepitoe Vallalat Industrieofen, insbesondere fuer waermebehandlungen
US4123886A (en) * 1975-08-11 1978-11-07 Johns-Manville Corporation Refractory fiber blanket module with increased insulation
US4128678A (en) * 1977-04-12 1978-12-05 Fiberglas Canada Limited Heat insulating material and method of and apparatus for the manufacture thereof
FR2393254A1 (en) * 1976-07-05 1978-12-29 Ley Willi Prefabricated furnace lining panels employing 'stacked' ceramic fibres - have lightweight steel strip support frames
US4166878A (en) * 1976-10-01 1979-09-04 Caterpillar Tractor Co. Gas turbine engine internal insulation comprising metallic mesh--restrained ceramic fiber layer
FR2424468A1 (fr) * 1978-04-28 1979-11-23 Johns Manville Dispositif et procede pour remplir un joint entre modules d'isolation avec une couche fibreuse refractaire
US4177036A (en) * 1976-06-10 1979-12-04 Sauder Industries, Inc. High temperature industrial furnace
US4194036A (en) * 1975-07-29 1980-03-18 Zirconal Processes Limited Module for furnace walls totally wrapped with thermally combustible material
US4202148A (en) * 1978-06-26 1980-05-13 Industrial Insulations, Inc. Method of making thick-walled refractory fiber modules and the product formed thereby
US4223064A (en) * 1979-05-10 1980-09-16 The United States Of America As Represented By The United States Department Of Energy Alkali metal protective garment and composite material
EP0018677A1 (en) * 1979-04-13 1980-11-12 Heattreatment Advising Company N.V. Oven walls comprising panels made of ceramic fibre materials
US4238257A (en) * 1977-09-19 1980-12-09 Societe Europenne Des Produits Refractaires Insulating slab of refractory fibres
US4248023A (en) * 1979-07-26 1981-02-03 A. P. Green Refractories Co. Insulated ceramic fiber refractory module
US4272638A (en) * 1979-03-16 1981-06-09 Johns-Manville Corporation Heater element supports for use with fibrous block insulations
US4324602A (en) * 1975-07-29 1982-04-13 Zirconal Processes Limited Method for reducing the thermal inertia of furnace or oven walls
US4336086A (en) * 1977-08-24 1982-06-22 Rast James P Method of lining a furnace with roll-type insulation
US4339902A (en) * 1980-06-30 1982-07-20 Manville Service Corporation Multiple layer thermal insulation device
US4348441A (en) * 1979-01-05 1982-09-07 Isolite Babcock Refractories Co., Ltd. Fibrous insulating material and insulating wall
US4363199A (en) * 1980-05-05 1982-12-14 Kennecott Corporation Fire resistant sealing system for holes in fire resistant building partitions
FR2507594A1 (fr) * 1981-06-12 1982-12-17 Lafarge Refractaires Ensemble modulaire en fibres ceramiques pour le garnissage des fours et son mode de mise en oeuvre
US4379382A (en) * 1980-06-02 1983-04-12 Sauder Industries, Inc. Method and apparatus for insulating a furnace having a corrosive atmosphere
EP0077608A1 (en) * 1981-10-16 1983-04-27 The Babcock & Wilcox Company Thermally insulative modules for lining furnaces or like equipment
US4381634A (en) * 1981-03-20 1983-05-03 Manville Service Corporation Fiber blanket insulation module
DE3304738A1 (de) * 1982-02-12 1983-08-25 Kennecott Corp., 06904 Stamford, Conn. Nahtlose verbunderzeugnisse aus keramikfasern sowie verfahren und vorrichtung zu ihrer herstellung
US4401613A (en) * 1981-08-03 1983-08-30 Refractory Products Co. Method of making thermal-insulating module
EP0090518A1 (en) * 1982-03-27 1983-10-05 Fuel Conservation Services Limited Thermally insulating blocks
US4414786A (en) * 1980-03-28 1983-11-15 Frahme Carl E Heat insulating module for high temperature chambers
WO1983004063A1 (en) * 1982-05-18 1983-11-24 Omark Industries, Inc. Insulation system and method and apparatus for retaining same
EP0109185A1 (en) * 1982-10-20 1984-05-23 Armco Inc. High temperature box annealing furnace
DE3418913A1 (de) 1983-05-20 1984-11-22 Toshiba Monofrax Co. Ltd., Katori, Chiba Laminarblock und verfahren und vorrichtung zur herstellung des laminarblockes
US4647022A (en) * 1983-01-10 1987-03-03 Coble Gary L Refractory insulation mounting system and insulated structures
US4653171A (en) * 1983-01-10 1987-03-31 Coble Gary L Refractory insulation mounting system and insulated structures
US4670318A (en) * 1983-05-20 1987-06-02 Toshiba Monofrax Company, Ltd. Laminar block and method of and apparatus for producing the laminar block
AU569698B2 (en) * 1981-12-17 1988-02-18 Thermal Ceramics Inc. Insulation member attachment
US4763458A (en) * 1982-05-18 1988-08-16 Ksm Fastening Systems, Inc. Insulation system and method and apparatus for retaining same
US4802425A (en) * 1982-12-16 1989-02-07 The Babcock & Wilcox Company High temperature fiber system with controlled shrinkage and stress resistance
US4803822A (en) * 1987-01-30 1989-02-14 Stemcor Corporation Modular furnace lining and hardware system therefor
US4829734A (en) * 1986-10-31 1989-05-16 Eltech Systems Corporation Ceramic fiber insulation module and method of assembly
US4850171A (en) * 1987-01-30 1989-07-25 Stemcor Corporation Modular furnace lining and hardware system therefor
US4885890A (en) * 1987-01-30 1989-12-12 Stemcor Corporation Modular furnace lining and hardware system therefor
US5010706A (en) * 1986-10-17 1991-04-30 Thermal Ceramics, Inc. Insulation and the provision thereof
US5115114A (en) * 1990-04-25 1992-05-19 Eltech Systems Corporation Ceramic fiber attaching system for a backing plate
US5176876A (en) * 1990-10-10 1993-01-05 Simko & Sons Industrial Refractories Inc. Insulating ceramic fiber batting module, anchoring system, ladle cover assembly and method of assembly
US5234660A (en) * 1990-10-10 1993-08-10 Simko & Sons Industrial Refractories, Inc. Insulating ceramic fiber batting module, anchoring system, ladle cover assembly and method of assembly
US5277955A (en) * 1989-12-08 1994-01-11 Owens-Corning Fiberglas Technology Inc. Insulation assembly
US5308046A (en) * 1983-01-10 1994-05-03 Coble Gary L Insulated furnace door system
US5318644A (en) * 1993-06-02 1994-06-07 Owens-Corning Fiberglas Technology Inc. Method and apparatus for making an insulation assembly
US5353567A (en) * 1990-04-18 1994-10-11 Premier Refractories And Chemicals, Inc. Insulation module assembly and apparatus for installation
US5390217A (en) * 1988-04-28 1995-02-14 Mitsubishi Jukogyo Kabushiki Kaisha Carbon fiber-reinforced carbon composite materials processes for their production, and first walls of nuclear fusion reactors employing them
US5398840A (en) * 1984-11-02 1995-03-21 The Boeing Company Microparticle enhanced fibrous ceramic baffle for cryogenic liquid containers
US5402615A (en) * 1992-11-13 1995-04-04 International Copper Association, Ltd. Fire retardant barrier system and method
US5483548A (en) * 1983-01-10 1996-01-09 Coble; Gary L. Insulated furnace door and wall panel system
US5549850A (en) * 1984-11-02 1996-08-27 The Boeing Company LaMnO3 -coated ceramics
US5569343A (en) * 1984-11-02 1996-10-29 The Boeing Company Ceramic fabric reinforced fiber/microparticle ceramic composite
US5624613A (en) * 1993-04-01 1997-04-29 The Boeing Company Rigidized refractory fibrous ceramic insulation
US5759663A (en) * 1996-10-31 1998-06-02 Thorpe Products Company Hard-faced insulating refractory fiber linings
US5955387A (en) * 1989-07-18 1999-09-21 The Boeing Company Microform composite with intermediate reinforcing fiber cloth
WO2000032990A1 (fr) * 1998-12-01 2000-06-08 Ebara Corporation Dispositif de traitement des gaz d'echappement
US6333000B1 (en) 1984-11-02 2001-12-25 The Boeing Company Process for making LaMnO3-coated ceramics
US6782669B1 (en) * 1998-07-24 2004-08-31 F. C. S. Dixon Limited Furnace lining
US20060260271A1 (en) * 2000-04-24 2006-11-23 Hunter Douglas Inc. Structural panel with compressible dividers
US20090165942A1 (en) * 2007-12-26 2009-07-02 National Starch And Chemical Investment Holding Corporation Insulation and Method of Installing
US20100044348A1 (en) * 2008-08-22 2010-02-25 Refractory Anchors, Inc. Method and apparatus for installing an insulation material to a surface and testing thereof
US20100326009A1 (en) * 2009-06-30 2010-12-30 A.P. Green Industries, Inc. Ceramic fiber modules
US8763473B2 (en) 2008-08-22 2014-07-01 Refractory Anchors, Inc. Method and apparatus for installing a refractory material to a surface
US9310132B1 (en) * 2012-02-08 2016-04-12 Carbonyx, Inc. Replaceable insulation roof for industrial oven
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Cited By (92)

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JPS49107006A (xx) * 1973-02-12 1974-10-11
JPS5314085B2 (xx) * 1973-02-12 1978-05-15
US3930916A (en) * 1973-06-28 1976-01-06 Zirconal Processes Limited Heat resistant panels
US3928097A (en) * 1974-03-01 1975-12-23 Sauder Industries Process and machine for manufacturing insulation modules
US4001996A (en) * 1974-06-03 1977-01-11 J. T. Thorpe Company Prefabricated insulating blocks for furnace lining
US4012877A (en) * 1974-06-03 1977-03-22 J. T. Thorpe Company Prefabricated insulating structure for insulating a corner in a furnace
US3968281A (en) * 1974-07-15 1976-07-06 Sybron Corporation Filter molded heating and/or insulating member
US4194036A (en) * 1975-07-29 1980-03-18 Zirconal Processes Limited Module for furnace walls totally wrapped with thermally combustible material
US4324602A (en) * 1975-07-29 1982-04-13 Zirconal Processes Limited Method for reducing the thermal inertia of furnace or oven walls
US4123886A (en) * 1975-08-11 1978-11-07 Johns-Manville Corporation Refractory fiber blanket module with increased insulation
US3990203A (en) * 1976-03-29 1976-11-09 Greaves James R Insulated ceramic fiber panels for portable high temperature chambers
US4177036A (en) * 1976-06-10 1979-12-04 Sauder Industries, Inc. High temperature industrial furnace
FR2393254A1 (en) * 1976-07-05 1978-12-29 Ley Willi Prefabricated furnace lining panels employing 'stacked' ceramic fibres - have lightweight steel strip support frames
JPS5318609A (en) * 1976-08-05 1978-02-21 Isolite Babcock Refractories Refractory and heat insulating wall
JPS558754B2 (xx) * 1976-08-05 1980-03-05
US4166878A (en) * 1976-10-01 1979-09-04 Caterpillar Tractor Co. Gas turbine engine internal insulation comprising metallic mesh--restrained ceramic fiber layer
DE2749126A1 (de) * 1976-11-05 1978-05-11 Kohaszati Gyarepitoe Vallalat Industrieofen, insbesondere fuer waermebehandlungen
US4086737A (en) * 1977-01-07 1978-05-02 Johns-Manville Corporation Refractory fiber blanket module with heat shrinkage compensation
US4128678A (en) * 1977-04-12 1978-12-05 Fiberglas Canada Limited Heat insulating material and method of and apparatus for the manufacture thereof
US4336086A (en) * 1977-08-24 1982-06-22 Rast James P Method of lining a furnace with roll-type insulation
US4238257A (en) * 1977-09-19 1980-12-09 Societe Europenne Des Produits Refractaires Insulating slab of refractory fibres
FR2424468A1 (fr) * 1978-04-28 1979-11-23 Johns Manville Dispositif et procede pour remplir un joint entre modules d'isolation avec une couche fibreuse refractaire
US4202148A (en) * 1978-06-26 1980-05-13 Industrial Insulations, Inc. Method of making thick-walled refractory fiber modules and the product formed thereby
US4348441A (en) * 1979-01-05 1982-09-07 Isolite Babcock Refractories Co., Ltd. Fibrous insulating material and insulating wall
US4272638A (en) * 1979-03-16 1981-06-09 Johns-Manville Corporation Heater element supports for use with fibrous block insulations
EP0018677A1 (en) * 1979-04-13 1980-11-12 Heattreatment Advising Company N.V. Oven walls comprising panels made of ceramic fibre materials
US4223064A (en) * 1979-05-10 1980-09-16 The United States Of America As Represented By The United States Department Of Energy Alkali metal protective garment and composite material
US4248023A (en) * 1979-07-26 1981-02-03 A. P. Green Refractories Co. Insulated ceramic fiber refractory module
US4414786A (en) * 1980-03-28 1983-11-15 Frahme Carl E Heat insulating module for high temperature chambers
US4363199A (en) * 1980-05-05 1982-12-14 Kennecott Corporation Fire resistant sealing system for holes in fire resistant building partitions
US4379382A (en) * 1980-06-02 1983-04-12 Sauder Industries, Inc. Method and apparatus for insulating a furnace having a corrosive atmosphere
US4339902A (en) * 1980-06-30 1982-07-20 Manville Service Corporation Multiple layer thermal insulation device
US4381634A (en) * 1981-03-20 1983-05-03 Manville Service Corporation Fiber blanket insulation module
US4440099A (en) * 1981-06-12 1984-04-03 La Farge Refractaires Ceramic fiber modular assemblies for lining furnace walls
FR2507594A1 (fr) * 1981-06-12 1982-12-17 Lafarge Refractaires Ensemble modulaire en fibres ceramiques pour le garnissage des fours et son mode de mise en oeuvre
US4401613A (en) * 1981-08-03 1983-08-30 Refractory Products Co. Method of making thermal-insulating module
WO1983001475A1 (en) * 1981-10-16 1983-04-28 Babcock & Wilcox Co Rod-anchored, accordion-fold, full-lining module
EP0077608A1 (en) * 1981-10-16 1983-04-27 The Babcock & Wilcox Company Thermally insulative modules for lining furnaces or like equipment
AU569698B2 (en) * 1981-12-17 1988-02-18 Thermal Ceramics Inc. Insulation member attachment
DE3304738A1 (de) * 1982-02-12 1983-08-25 Kennecott Corp., 06904 Stamford, Conn. Nahtlose verbunderzeugnisse aus keramikfasern sowie verfahren und vorrichtung zu ihrer herstellung
DE3304738C2 (de) * 1982-02-12 1994-05-19 Kennecott Corp Ebene Isoliermatten und Verfahren zur ihrer Herstellung
EP0090518A1 (en) * 1982-03-27 1983-10-05 Fuel Conservation Services Limited Thermally insulating blocks
WO1983004063A1 (en) * 1982-05-18 1983-11-24 Omark Industries, Inc. Insulation system and method and apparatus for retaining same
US4478022A (en) * 1982-05-18 1984-10-23 Ksm Fastening Systems Inc. Insulation system and method and apparatus for retaining same
US4763458A (en) * 1982-05-18 1988-08-16 Ksm Fastening Systems, Inc. Insulation system and method and apparatus for retaining same
EP0109185A1 (en) * 1982-10-20 1984-05-23 Armco Inc. High temperature box annealing furnace
US4802425A (en) * 1982-12-16 1989-02-07 The Babcock & Wilcox Company High temperature fiber system with controlled shrinkage and stress resistance
US4653171A (en) * 1983-01-10 1987-03-31 Coble Gary L Refractory insulation mounting system and insulated structures
US4647022A (en) * 1983-01-10 1987-03-03 Coble Gary L Refractory insulation mounting system and insulated structures
US5308046A (en) * 1983-01-10 1994-05-03 Coble Gary L Insulated furnace door system
US5483548A (en) * 1983-01-10 1996-01-09 Coble; Gary L. Insulated furnace door and wall panel system
US5335897A (en) * 1983-01-10 1994-08-09 Coble Gary L Insulated furnace door system
US4670318A (en) * 1983-05-20 1987-06-02 Toshiba Monofrax Company, Ltd. Laminar block and method of and apparatus for producing the laminar block
DE3418913A1 (de) 1983-05-20 1984-11-22 Toshiba Monofrax Co. Ltd., Katori, Chiba Laminarblock und verfahren und vorrichtung zur herstellung des laminarblockes
DE3448315C2 (xx) * 1983-05-20 1993-05-19 Toshiba Monofrax Co. Ltd., Katori, Chiba, Jp
US5398840A (en) * 1984-11-02 1995-03-21 The Boeing Company Microparticle enhanced fibrous ceramic baffle for cryogenic liquid containers
US5549850A (en) * 1984-11-02 1996-08-27 The Boeing Company LaMnO3 -coated ceramics
US6333000B1 (en) 1984-11-02 2001-12-25 The Boeing Company Process for making LaMnO3-coated ceramics
US5569343A (en) * 1984-11-02 1996-10-29 The Boeing Company Ceramic fabric reinforced fiber/microparticle ceramic composite
US5010706A (en) * 1986-10-17 1991-04-30 Thermal Ceramics, Inc. Insulation and the provision thereof
US4829734A (en) * 1986-10-31 1989-05-16 Eltech Systems Corporation Ceramic fiber insulation module and method of assembly
US4850171A (en) * 1987-01-30 1989-07-25 Stemcor Corporation Modular furnace lining and hardware system therefor
US4885890A (en) * 1987-01-30 1989-12-12 Stemcor Corporation Modular furnace lining and hardware system therefor
US4803822A (en) * 1987-01-30 1989-02-14 Stemcor Corporation Modular furnace lining and hardware system therefor
US5586152A (en) * 1988-04-28 1996-12-17 Mitsubishi Jukogyo Kabushiki Kaisha Carbon fiber-reinforced carbon composite materials, processes for their production, and first walls of nuclear fusion reactors employing them
US5390217A (en) * 1988-04-28 1995-02-14 Mitsubishi Jukogyo Kabushiki Kaisha Carbon fiber-reinforced carbon composite materials processes for their production, and first walls of nuclear fusion reactors employing them
US5955387A (en) * 1989-07-18 1999-09-21 The Boeing Company Microform composite with intermediate reinforcing fiber cloth
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AR200844A1 (es) 1974-12-27
NO130704C (xx) 1975-01-22
JPS6220444B2 (xx) 1987-05-07
NL7208434A (xx) 1973-01-02
CA1039947B (en) 1978-10-10
NL158610B (nl) 1978-11-15
DE2231658B2 (de) 1975-07-03
NO130704B (xx) 1974-10-14
JPS6334391B2 (xx) 1988-07-11
SE380615B (sv) 1975-11-10
JPS5747124A (en) 1982-03-17
DE2231658A1 (de) 1973-01-18
BR7204236D0 (pt) 1973-05-10
IT958523B (it) 1973-10-30
CA964058A (en) 1975-03-11
BE785513A (nl) 1972-10-16
DE7224179U (de) 1976-09-23
JPS55165481A (en) 1980-12-23
GB1396724A (en) 1975-06-04
FR2199858A5 (xx) 1974-04-12
HK52479A (en) 1979-08-10
JPS5532996B1 (xx) 1980-08-28

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