DE3420996A1 - Insulating cladding of the walls of spaces, especially in furnaces - Google Patents

Abstract

In the case of insulating cladding (2) of the walls (3) of spaces, especially in furnaces (1), the cladding consists of a multiplicity of laminated mats or panels (4) of soft insulating material, in whose separating planes (5) metal inserts (6) are inserted which have projections, spikes (7) or the like, which penetrate into the soft material and hence prevent displacement of the mats or panels (4) with respect to one another, and are used for accepting retention forces. The inserts (6) are formed as narrow, thin strips (8) of metal having stamped-out spikes which originate from both surfaces (9) and whose subsections (11), which are accessible on the end edges (10) of the mats or panels (4), are coupled to retaining means (12) which are arranged and constructed such that they and the overhanging subsections (11) of the strips (8) are covered by a layer (14) which insulates the heated space (13) at the top, and which retaining means are thus always arranged in the cold region of the furnace (1), the strips extending in all separating planes (5) approximately parallel to the walls, but without touching them. <IMAGE>

Description

■ Ρ 255 -iv-June 1984

Patent application

of the company

Dr. Werner Herdieckerhoff , Nachf., Industrial furnace and apparatus construction, Viktoriastr. 10-12, 4750 Unna

Insulating lining of the walls of rooms, especially in ovens

The invention relates to an insulating lining of the walls of rooms, in particular in ovens, wherein the lining consists of a plurality of layered mats or plates of soft insulating material, metal inserts are inserted in the parting planes, the protrusions penetrating into the soft insulating material, Have picks or the like and thus prevent the mats or plates from shifting against each other, as well as the assumption of holding forces (USA patent 4,389190 and European published patent application 0061537)

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The strong metal plates provided on both sides with punched picks, points or the like, which are provided with are provided with an angle flange, are particularly suitable for small chamber furnaces or the like, but the problems of installing linings do not solve in larger ovens. In larger ovens, the mat or plate-like insulating layers 5 or 6 m long, so that the handling and the connection of these layers to an insulating layer wall as homogeneous as possible is extremely difficult. Overall, the mats are not heavy, but very unwieldy '. Smaller ovens often consist of a base, a wall part and a lid placed on top, which are joined together will. With the help of the proposals of the prior art, this can be simplified in a very advantageous manner be that the outer walls only form cladding of a frame, which in turn again The carrier of the linings is.

In larger furnaces, the attachment of the insulating lining makes' considerable difficulties. Be on the stove walls holding members welded on in large numbers. Often these are anchors penetrating the insulation or the like, which can form so-called heat bridges. All stressed metal parts should therefore, if possible, not in the Heat area, but be arranged in the cold area of the furnace. The teaching known according to the state of the art, Such connecting means made of metal not in the heat range, but as completely enclosed as possible by insulating material to arrange is adopted by the invention.

The aim of the invention is to reduce the amount of work, the amount of material and to reduce costs while at the same time improving creep strength.

This is achieved by the teaching of claim 1.

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The thin bands, which could be called spiked bands, are without even with very thin walls further able to absorb the tensile forces as the lining weighs very little. They are each between two mats are inserted and run roughly parallel to the walls, but still with insulating material on all sides always in the cold area of the oven.

The thin strips have three tasks: 1. to fix the individual mats or panels together, 2. to provide tensile forces to be transferred to the holding means and 3. to stiffen the lining over its entire extent.

Such tapes, supplied in coils, can be cut to any length. Handling is simplified and there is no change if the dimensions of the liner change.

The dependent claims 3, 4, 7 to 10 now show different ones Embodiments that are advantageous in connection with the teaching of claim 1. They suggest, to let the belts run continuously over 2 or more parting lines, so that in the front edge area the panels or mats form loops. The ends of the belt protruding from the front sides of the mat must or loops are not long. Rather, it is advantageous if the insulation is right up to the holding means is introduced.

The teaching of claim 9 offers the possibility of creating stiff lining units that can be tensioned at both ends or can only be determined. The mats or panels are so soft that they feel in a certain way after the The assembly can still be pressed together and thus shifted in relation to the fastening point.

It is therefore particularly advantageous to attach the tape ends to the holding means in such a way that

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they hang slidably on this, as is proposed in claim 14.

The teaching of claim 12 and that of the process claim 16 are particularly advantageous because the entire lining on the frame, which may already be with the cover and whose insulation is provided, can be hung in advance. The lining is good inside and out accessible before it is placed in the furnace housing.

For example, if the ovens are vacuum- or pressure-tight, as is often the case with hood ovens a frame can be retracted and fixed with a lifting device or by lowering the hood. The difficult one There is no need to work with the lining inside the furnace.

The furnace wall can optionally be made thinner because the walls do not have fastening means

be charged. <

It goes without saying that this technology, which was designed for ovens, is used in all areas, e.g. also in refrigeration technology, can be used. So it applies to all rooms that are covered by mat-like insulating materials should be closed in a heat-impermeable manner. In all use cases, only the above are mentioned endless spiked belt and the end-mounted holding means or the like used. Adapting to the various Shapes and size relationships are thus possible without difficulty.

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3420936

The drawing shows with:

Figure 1 is a perspective view of a lining according to the invention with its connection and Fasteners.

Figure 2 shows an alternative to Figure 1 with a different suspension.

Figure 3 shows the locking of the tape ends in slots.

FIG. 4 shows a corresponding locking mechanism by means of insertable bolts.

FIG. 5 shows an embodiment with a removable frame consisting of an angle iron and displaceable relative to this or relative to a flange of the angle iron Tape suspensions.

FIG. 6 an alternative to FIG. 5.

Figure 7 the possibility of using the belts (spiked belts) to pack the mats or plates summarize.

FIG. 8 shows the insulation in the ridge area and its intended deformation between the ridge insulation and the wall insulation.

In the case of an oven 1, the lining is on the wall 3 shown on holding means 12. As a holding means, for example, an angle iron 31 is provided, the to the furnace interior facing flange 25 is provided with a plurality of slots 18, the distance between them is smaller than the distance between the intended suspension points. This makes it possible to also

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considerations of the insulation material when choosing the slots. The .in ^the figure 1 visible portion of the suspension of the liner 2 is fully ht of the insulating laye 14 is covered below the furnace ridges. This is chosen to be somewhat thicker than the distance between the front edges 10 and the furnace cover, so that a tight seal with the heat chamber 13 is ensured by the deformation that occurs.

The angle iron 13 can also, as will be shown later, be a continuous frame that only is inserted.

In the embodiment shown in FIG. 2, the belts 4 run from a parting plane 5 without interruption to the next. As a result, they form loops 19. These loops 19 are hooked into the slots 18.

The bands 4 can now be inserted endlessly in a meander shape so that loops also form at the bottom. The length of these loops can be adapted to the circumstances will. It is usually advantageous to keep it as short as possible to avoid the isolation-free space as well to have as small as possible. But it can also be that, for certain reasons, the entire lining wall both above and below, or folded down, stretched or locked in horizontal planes shall be. A corresponding suspension can then also be provided on the other end face of the mat package or the lining 2 take place. The stiffness that can be achieved with this method is often sufficient for a self-supporting one Installation from. It is advisable to use this method for the layer 14 arranged under the roof use.

The free ends 15 of the strips 4 can form eyelets 16 by folding over and spot welding, into which a latch 2 7 is inserted.

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The embodiment is similar in FIG. 4. Here is an eyelet has been dispensed with and the bolt 27 is directly through an already existing, punched Hole 32 inserted.

A frame 23 forms the angle iron 31 in the figure. There are no slots here because they can be moved the suspension point is desired. To achieve this, wire slides or hooks 33 are provided, which are hooked into the holes 32, are simply pushed over the flange 25. Support abutment 34 the frame 23 opposite the wall. For example, it is possible to use the entire lining 2 to hang on the frame 23 outside the furnace walls and then retract as a whole into the furnace or into the walls. This makes assembly easier extraordinary, because when attaching the lining

- this is accessible from all sides. Is it at

For example, around round ovens, a spiked band can be used as a bandage around the finished lining be pulled to prevent the diameter from changing due to deformations that occur.

In Figure 6, the hook-like part 33 is replaced by a slider 35, which by the anointing of a Sheet metal is created that is later bent over.

The perspective illustration in FIG. 7 shows the possibility of cross-connections via the bands 4 to be attached between the individual mats or plates in such a way that entire groups or packages are tight against each other are coupled. It is necessary that the bands are slightly offset from one another otherwise they could interfere with each other. The most diverse possibilities are now given here, For example, to create modules that facilitate assembly.

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Figure 8 is only intended to show that the ridge insulation layer 14 thicker is chosen so that it is possible in the area of the suspension by deformation largely the parts of the suspension area presses in and thus forms a tight, heat-impermeable seal.

The tools required by the invention for Creating a flawless lining made of elastic, mineral fleece actually exist only from the bands 4 and the angle iron 31 required in each case or, if appropriate, from hook-like ones or slider-like, cheap parts. This equipment does not change with the size of the ovens or the Length and thickness of the mats. The tapes are perfectly suitable, even if they are thin, the necessary To muster forces. At most it would be possible that a second order of magnitude is kept in stock for the tapes. All work on the furnace walls, like that Attachment of retaining organs or the like are omitted. The furnace walls can be correspondingly thinner-walled be. They can also be made of higher quality material, because of the general cost of the invention can be significantly reduced.

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List of reference symbols

- 1 oven

2 lining

3 walls

4 mats or plates

5 parting plane

6 deposits

7 Pick _ "" '"

8 bands

9 surfaces (bands)

10 Front edges 1 1 Sections (tapes) 12th Holding means 13th Heat room 14th insulating layer 15th free ends 16 Eyelets 17th Thickenings 18th Slots 19th Loops 20th Tape sections 21 upper edge 22nd side walls 23 frame 24 Upper oven opening 25th flange 26th Intermediate links 27 bars 28 lid 29 Lid insulation 30th free space 31 Angle iron 32 punched hole 33 Wire slider or hook 34 Abutment 35 Glider

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Claims (16)

* j "/ June 1 984 1. Insulating lining (2) of the walls (3) .; of rooms, in particular in ovens (1), the lining (2) consisting of a plurality of layered mats or panels (4) made of soft insulating material, in the parting planes (5) of which metal inserts (6) are inserted, which are inserted into the soft insulating material have penetrating projections, picks (7) or the like and thus prevent a displacement of the mats or plates (4) against each other, as well as serve to take over holding forces, characterized in that narrow, "thin strips (8) are used as inserts (6) made of metal with punched-out peaks (7) extending from both surfaces O (), whose subsections (11) accessible at the front edges (10) of the mats or plates (4) are coupled with holding means (12) which are arranged and designed in such a way that they and the protruding sections (11) of the strips (8) are covered by a layer (14) insulating the heat aura (13) upwards and are therefore always arranged in the cold area of the furnace (1) and yourself di e tapes in all parting planes (5); approximately parallel to the walls, but without touching them, extend. 2. Insulating lining (2) according to claim 1, characterized in that the connection of the subsections (11) of the bands (8) with any holding means (12) takes place via spot welding. 3. Insulating lining according to one of claims or 2, characterized in that strips (8) inserted in different parting planes (5) are connected to one another. * f EPO COPY 4. Insulating lining according to claim 3, characterized in that at least two bands (8) are in one piece. 5. Insulating lining according to one or more of claims 1 to 4, characterized in that the free ends (15) of the bands (8) form eyelets (16). ^, - ^ - ~ 6. Insulating lining according to one or more of claims 1 to 5, characterized in that the free ends (15) of the bands (8) form thickenings (17) and the holding means (12) facing the middle of the furnace, comb-like slots (18 ), into which the straps (8) can be inserted and secured with bolts. 7. Insulating lining according to one or more of claims 1 to 6, characterized in that in each case a band (8) skips several layers of plates or mats (4) and serves to absorb transverse forces. 8. Insulating lining according to one or more of claims 1 to 7, characterized in that strips (8) are longer than two lengths of the mats or panels (4). 9. An insulating lining according to one or more of claims 1 to 8, characterized in that the bands (8) meander-shaped at the bottom and at the top from layer to layer with the formation of continuous band loops (19). 10. Insulating lining according to one or more of claims 1 to., 9, characterized in that the strips (8) on the oven wall side each skipping several layers of the mats or panels (4) form vertically offset cross connections. EPO COPY - 3 - Inserted 11. Insulating lining according to one or more of claims 1 to 10, characterized in that Baridabschnitte (20) of the belts (8) deviating zw. In tension direction of the normal to the Kant s i sch en plates or mats (4) are. 12. Insulating lining according to one or more of claims 1 to 11, characterized in that _ that one on the upper edge (21) of the side walls (22) of the furnace (1) arranged frame (23) with approximately the contour of the upper opening (24) as a holding means (12) is used to suspend the lining (2) and below the cover on this or the walls (3) is releasably attached. 13. Insulating lining according to one or more of claims 1 to 12, characterized in that a flange (25) with a slit in the shape of a comb serves as the holding means (12). 14. Insulating lining according to one or more of claims 1 to 13, characterized in that the flange (25) is comprised of slide-like or hook-like intermediate members (26) which are connected to the bands (8), a displacement along the flange ( 25) allow. 15. Insulating lining according to one or more of claims 1 to 14, characterized in that the cover insulation (29) is thicker than the free space (30) between the cover (28) and the end faces of the suspended mats or panels (4). 16. A method for installing insulation in industrial furnaces according to the device claim 12, thereby 4th characterized in that the liner is attached to the frame (23) with or without a lid (28) attached outside the oven (1) and only then into the oven is inserted from above or below. EPO COPY