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
• • 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

Definitions

• the present invention concerns a procedure for lining spaces with high temperatures, as defined in the preamble to Claim 1, and a system for lining spaces with high temperatures as defined in the preamble to
• the object of the invention is to eliminate the drawbacks mentioned. Specifically, the object of the invention is to disclose a novel procedure and system for lining spaces with high temperatures by the aid of which the lining work is fast, flexible and simple, independent of the dimensions and shapes of the surface which is being lined, in which the material cost is substantially lower than in prior art, and in which the repair and service operations are simple and easy to implement.
• the system of the invention comprises trans ⁇ port/application packages of fibrous lining material strips in which the loose and separate fibre strips are packed tightly side by side to constitute a top surface of the package which is coherent of its edges and lev ⁇ el, this surface constituting the mating surface for the space to be processed by lining.
• applica- tion of the fixing compound on the top surface of the package enables the strips to be taken from the package in suitable batches, of freely selectable size, and lifted out and affixed to the surface of the space to be treated which has to be lined.
• the transport/application packages are conveyed directly to the mounting site. where they are opened and cementing mortar or equival ⁇ ent fixing agent is applied directly on the edge sur ⁇ face of the fibre strips in the package, the treated fibre strips being aff :ed in suitable bunches directly to the object of installation.
• the procedure and system of the invention enable a highly flexible and fast lining process in which the need of cutting and shaping the lining mate ⁇ rial at the site of installation has been minimized. Furthermore, repair and servicing operations are simple in the system because large elements or modules need never be removed from the lined surfaces: it is merely necessary to remove any damaged strips and to replace them.
• the procedure and system of the invention are appropriate, owing to their versatility and flexibility, to be ap ⁇ plied in all and any applications: it reacts elastical- ly to thermal expansion and suffers no heat damage, its mechanical strength both in contact and in gas flows is good, the convenience, fastness and ease from the pro ⁇ professional viewpoint of its installation are in a class of their own, it requires no special tools and it is moreover competitive as to its price.
• Fig. 1 presents a fiber strip such as is used in the invention
• Fig. 2 presents the transport/application package of the invention
• FIG. 3 shows the transport/application package of Fig. 2 in use
• Fig. 4 shows the base element used in the invention
• Fig. 5 shows the use of the base element of Fig. 4
• Fig. 6 presents a sectional view of a lining construe- tion according to the invention
• Fig. 7 presents a sectional view of another lining construction according to the invention
• Fig. 8 presents a sectional view of a third lining construction according to the invention
• Fig. 9 shows a finished surface lined as taught by the invention.
• Fig. 10 shows another finished surface lined as taught by the invention.
• Fig. 1 depicts the basic element used in the invention, i.e., one fibre strip 1 which is a body with the form of a rectangular parallelepipedon of e.g. 300, 450 or 600 mm length, 50 or 100 mm height and 10, 15 or 20 mm breadth consisting of fibrous insulating materi- al, appropriate in each particular case.
• one fibre strip 1 which is a body with the form of a rectangular parallelepipedon of e.g. 300, 450 or 600 mm length, 50 or 100 mm height and 10, 15 or 20 mm breadth consisting of fibrous insulating materi- al, appropriate in each particular case.
• the fibre strips 1 are packed to form a transport/application package 2 in which the fibre strips, packed tightly side by side, form uniform fibre strip layers 4.
• the package may contain one or several courses, such as three courses in the embodiment of the figure.
• at least one side 17 of the package can be opened so that at least one edge of the strip courses is exposed.
• on the package have been provided dimensional markings 18, by the aid of which it is easy to take from the package fibre strip bunches of a given size, without separate measurement.
• the fibre strip packages 2 are used by opening the package at least on the top side and by applying, at the immediate site of installation, on the top surface of the package a suitable fixing compound 3, advantageously over the entire top surface of the package, or over the topmost fibre strip course.
• a suitable fixing compound 3 advantageously over the entire top surface of the package, or over the topmost fibre strip course.
• the top layer can be used by taking from it a fibre strip bunch of proper size in each instance and this can be pressed onto the surface which is being lined, at the desired point and in de ⁇ sired position.
• a base element 6, consisting of metal netting and having on its upper margin a perpendicular reinforcing flange 19 extending over its entire length, is affixed in any suitable way, e.g. by welding or bolting, to the basic structure, and the fibre strips are fixed upon the net.
• Fig. 6 is depicted a lining construction according to the invention, wherein to the inner sur ⁇ face 20 of the space to be lined have first been at ⁇ tached plate-like base elements 6. To these elements has with a suitable fixing compound 3 been fixed a first fibre strip course 13, with the fibres substan- tially parallelling planes which are at right angles against the surface which is being lined.
• This first course 13 is comparatively thick and its heat resis ⁇ tance may be comparatively low.
• auxiliary fixing mem- bers 10 have been provided in the insulation structure and fixed to the base element 6, these members extend ⁇ ing through all three insulating layers and ensuring adherence of the insulating layers to the base element.
• the construction also includes supports 14 extending through the insulating layer, from which e.g. electri ⁇ cal resistances 15 can be suspended.
• the supports rest on stays 16 consisting e.g. of re ⁇ fractory bricks, carried by the outermost insulating layer 11. This prevents the supports 14 from subsiding under the weight of the electrical resistances 15 and damaging the insulating material.
• Fig. 7 is depicted another insulating structure according to the invention, wherein to the inner surface 21 of the space to be treated has first been attached a conventional mineral wool layer 22, and thereupon, two layers 11 and 12 of different thickness, which are fibre strip insulating courses according to the invention.
• This structure comprises mechani ⁇ cal auxiliary fixing members 10 extending through the whole insulation thickness, by which the insulating materials are braced to the supporting structure of the space which is being lined.
• Fig. 8 depicts a third lining structure ac ⁇ cording to the invention, in which on the surface to be lined has first been installed a mineral wool layer 23, and upon this has been built a brick cladding 24 of refractory bricks. To this brick surface has been at ⁇ tached with fixing compound 3, for topmost insulating layer 11, a fibre strip course according to the inven- tion. The fibre strip course has furthermore been coat ⁇ ed with a surface layer 7, consisting of suitable re ⁇ fractory compound.
• Fig. 9 is presented a finished lining con ⁇ struction implemented as taught by the invention, wherein the lining of a varying and multi-formed sur ⁇ face has been implemented using fibre strips of only two different lengths but of the same thickness and breadth.
• the first fibre strips 25 are e.g. 300 mm in length and the other type of fibre strips 26 is 50% longer, i.e., 450 mm.
• short and long fibre strips have been used alternat- ingly one bunch at a time, so that the borders around the aperture become linked in a tight corner joint.
• mechanical auxiliary fixing members 10 have been used in the marginal areas around the aperture, by which retention in their place of the insulating layers has been ensured.
• the short ⁇ er fibre strip length has mainly been used, every time one bunch of strips with a breadth equalling the length of the fibre strip being fixed to the surface which is being lined, and thereafter one strip 28 transversal to the strips in the bunch being mounted on the end of the strip bunch, this strip 28 serving to seal and straigh ⁇ ten the package constituted by the strips, and to equa ⁇ lize the thermal movements in the structure.
• Fig. 10 is presented a structural design according to the invention for insulating round-shaped surfaces. Since the individual, and separate, fibre strips are comparatively small, even a round-shaped surface can be lined for the greater part with whole fibre strips, while a minor part only have to be carved and cut off in order to fill every cavity.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Ceramic Engineering (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Laminated Bodies (AREA)
• Furnace Housings, Linings, Walls, And Ceilings (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8538982

Family Applications (1)

Country Status (6)

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Citations (9)

Family Cites Families (5)

• 1993
  • 1993-11-19 FI FI935156A patent/FI95623C/fi not_active IP Right Cessation
• 1994
  • 1994-11-18 WO PCT/FI1994/000520 patent/WO1995014203A1/en not_active Application Discontinuation
  • 1994-11-18 US US08/648,093 patent/US5817198A/en not_active Expired - Fee Related
  • 1994-11-18 AU AU81461/94A patent/AU8146194A/en not_active Abandoned
  • 1994-11-18 EP EP95900782A patent/EP0729559A1/en not_active Ceased
• 1995
  • 1995-05-26 RU RU96113089A patent/RU2118775C1/ru active

Patent Citations (9)

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