SK89795A3 - Method and device for production of isolating fleece from mineral fibers, isolating plate from mineral fibers - Google Patents

Abstract

A method of producing a mineral fiber-insulating web comprises the steps of firstly producing a first non-wowen mineral fiber web. The first mineral fiber web contains mineral fibers arranged generally in the longitudinal direction of the mineral fiber web. Secondly, the first mineral fiber web is moved in the longitudinal direction of the web and folded parallel with the longitudinal direction and perpendicular to the transversal direction of the first mineral fiber web, so as to produce a second mineral fiber web comprising a central body and opposite surface layers sandwiching the central body, which central body contains mineral fibers arranged generally perpendicular to the longitudinal and transversal directions of the second mineral fiber web and which surface layers contain mineral fibers arranged generally in the transversal direction of the second mineral fiber web. Thirdly, a third non-wowen mineral fiber web being a mineral fiber web of a higher compactness as compared to the second mineral fiber web is produced and adjoin in facial contact with the second mineral fiber web for producing a fourth composite mineral fiber web which is thereupon cured. The method also optionally includes longitudinally compressing and/or transversally compressing the second mineral fiber web. The composite mineral fiber web may additionally be combined with additional mineral fiber webs or coverings for producing a composite mineral fiber web product which is cured in a single curing process.

Description

A method embodying the steps of producing a first non-woven mineral fiber web. The first web comprises mineral fibers positioned in the longitudinal direction. The first web is moved in the longitudinal direction and is folded parallel to the longitudinal direction and perpendicular to the transverse shifting of the first nine so as to produce the rimo of mineral wool, comprising a central body and opposing layers covering the central body. The central body comprises mineral fibers disposed generally perpendicular to the longitudinal and transverse directions of the second web, and the surface layers comprise mineral fibers disposed in the transverse direction of the second nin. The produced third mineral fiber nonwoven is compacted in height compared to the second web and attached face side to the second web.

A method for producing a mineral fiber insulating web, an apparatus for producing a mineral fiber web, and a mineral fiber insulation board.

Technical field

The present invention relates generally to the technical field of production of mineral fiber insulation boards. Mineral fibers generally include fibers such as mineral wool fibers, glass fibers, and the like. More specifically, the present invention relates to novel techniques for producing mineral fiber insulating webs from which mineral fiber insulating boards are cut. The mineral fiber plates produced from the mineral fiber insulating web produced by the process of the present invention exhibit advantageous characteristics in both mechanical strength and modulus of elasticity and strength, have low weight and good thermal insulation properties.

BACKGROUND OF THE INVENTION

The mineral fiber webs have heretofore been produced as homogeneous webs, i. the webs in which the mineral fibers of which the web is composed are oriented in one predominant orientation, which is mostly determined by the orientation of the production line on which the mineral fiber insulating web is produced and moved during the process of producing the mineral fiber insulating web. A product made from homogeneous mineral fiber webs exhibits characteristics which are determined by the integrity of the mineral fiber insulating web and which are predominantly determined by the binding of mineral fibers in the mineral fiber insulation board, made from mineral fiber insulating web, and further predominantly determined by basis weight and the mineral fiber density of the mineral fiber insulation board.

Various techniques have been invented for producing mineral fiber insulating boards, of different structure, having advantageous characteristics of mineral fiber boards, to some extent always achieved by techniques for producing mineral fiber insulation boards, in which the mineral fibers are oriented predominantly in an orientation different from orientation given by the production line, see. International Patent Application Laid-open Publication No. US-A- PCT / DK91 / 00383, International Patent Publication, Ser. WO92 / 10602, U.S. Pat. No. 4950355, Swedish patent

no. No. 4,417,664, U.S. Pat. 2546230 and U.S. Pat. References to the aforementioned patent applications and patents and US patents are incorporated herein by reference.

From the above-mentioned published International Patent Application No. WO92 / 10602, a method for producing mineral fiber insulating boards composed of bonded rod-shaped mineral fiber elements is known. The method includes cutting the continuous mineral fiber web in the longitudinal direction to form the slats, cutting the slats to the desired length, rotating the slats about 90 ° to the longitudinal axis, and joining the slats to form a board. The method also includes the step of curing a continuous mineral fiber web, or alternatively boards composed of individual lengths of slats bound together to form the board.

From Swedish patent no. No. 441764, a technique for producing cartons or boards composed of rod-shaped elements is known, and this technique is similar to the technique described above in said international patent application. According to the technique described in the Swedish patent, the web or mineral fiber material is cut into rod-shaped elements of specific length, which are then rotated and refolded into a composite board structure of rod-shaped elements which are glued together by strips of binder material which are introduced into holes through the composite rod-shaped structure of the mineral fiber board in a separate production step.

U.S. Pat. No. 2546230 are known techniques for manufacturing mineral fiber cartons or boards composed of rod-shaped elements. The technique described in U.S. Pat. No. 2546230 is very similar to the techniques described in the aforementioned international patent application and the aforementioned Swedish patent and comprises a separate step of joining the rod-shaped lamellae together with a suitable binder.

U.S. Pat. No. 3493452 is a known process for making a fibrous board structure comprising continuous fibers or fibers of a polymeric material such as polyethylene terephthalate or polyhexamethylene aditamide. The method comprises manufacturing continuous filaments or fibers of polymeric material using a carriage machine from supplying continuous filaments or fibers formed by a porous flexible web of continuous filaments or fibers, accumulating continuous filaments or fibers of polymeric material on a belt to form a continuous web of continuous filaments or fibers of polymeric material, pressing the web, cutting the web into a series of parallel strands of filaments comprising continuous or polymeric fibers, and rotating the fibrous strips about 90 ° along the longitudinal axis and bonding the strips together so that the strips are homogeneously bonded only by applying the pulp pressure during the spinning process strips. The webs produced in accordance with the technique described in said US patent are suitable for the manufacture of products such as carpets, blankets, bedspreads, bathrobes and the like.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a new method of producing mineral fiber insulating webs from which mineral fiber insulating boards can be cut, which method allows online production of mineral fiber insulating boards that are a composite and complex structure providing different advantages compared to homogeneous, one-way oriented mineral fiber boards according to the prior art.

A particular advantage of the present invention is that the new mineral fiber insulating boards according to the present invention and produced by the method according to the present invention contain less mineral fibers compared to the prior art mineral fiber insulating boards and consequently are cheaper than mineral fiber insulating boards according to the prior art, and still exhibit advantages compared to the prior art mineral fiber insulation boards in terms of mechanical strength and thermal insulation properties.

A particular feature of the present invention relates to the fact that the new mineral fiber insulating board according to the present invention and produced by the method of the present invention is obtainable from less mineral fibers or less material compared to prior art mineral fiber insulating boards and still provides the same characteristics as a mineral fiber insulating board according to the prior art in terms of mechanical strength and thermal insulating properties and is thus able to provide a lighter and more compact mineral fiber board as compared to the prior art mineral fiber insulating board, which reduces transportation, storage and handling costs.

The above object, the above-mentioned advantage and feature together with many other objects, advantages and features will be apparent from the detailed description of the presently preferred embodiments of the invention set forth below, and will be achieved by the method of the present invention, which comprises the following steps:

(a) producing a first non-woven mineral fiber web defined by a first longitudinal direction parallel to the mineral fiber web and a second transverse direction parallel to the first mineral fiber web, wherein the first mineral fiber web comprises mineral fibers disposed generally in the second transverse direction and comprises the first a curing binder,

b) moving the first mineral fiber web in the first longitudinal direction of the first mineral fiber web,

c) folding the first mineral fiber web parallel to the first longitudinal direction and perpendicular to the second transverse direction so as to obtain a second non-woven mineral fiber web, wherein the second mineral fiber web comprises a central body and opposing surface layers which cover the central layers a body, wherein the central body comprises mineral fibers disposed generally perpendicular to the first longitudinal direction and a second transverse direction, and surface layers comprising mineral fibers disposed generally in the second transverse direction,

d) movement of the second mineral fiber web in the first longitudinal direction,

(e) producing a third non-woven mineral fiber web defined in a third direction parallel to the third mineral fiber web, wherein the third mineral fiber web comprises mineral fibers disposed generally in a third direction and comprising a second curable binder, wherein the third mineral fiber web is a non-woven mineral fiber web mineral fibers with high compactness compared to the second mineral fiber fabric,

f) joining a third mineral fiber web with a second mineral fiber web in the face contact thereto to form a fourth composite mineral fiber web; and

g) curing the first and second curable binder agents such that the mineral fibers of the fourth composite material are bonded to each other, thereby forming a mineral fiber insulating web.

The third non-woven mineral fiber web that is bonded to the second non-woven mineral fiber web in step f) may form a separate non-woven mineral fiber web. Thus, the first and third mineral fiber webs can be produced in separate production lines that are joined together in step f).

According to a first embodiment of the method of the present invention, the third non-woven mineral fiber web is produced by separating the surface segment of the first mineral fiber web layer and compacting the surface segment of the layer for producing the third mineral fiber web.

I

Optionally, the third mineral fiber web may be made by densifying the surface segment of the layer, including the degree of composition of the surface segment of the layer, to obtain a third mineral fiber web comprising mineral fibers positioned generally transverse to the longitudinal direction of the third mineral fiber web.

The third mineral fiber web may further be made by densifying the surface segment of the layer, including degrees of composition of the surface segment of the layer, to produce a third mineral fiber web comprising mineral fibers positioned generally transverse to the longitudinal direction of the third mineral fiber web.

According to another presently preferred method of the present invention, the third mineral fiber is produced by separating an embodiment of the nonwoven web of one of the surface layers of the second mineral fiber web in a step of

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c) from its central body and compacting the surface layer for the production of a third mineral fiber web. Provided that the third mineral fiber web is produced by separating the surface layer from the second mineral fiber web, the mineral fibers of the third mineral fiber web generally maintain the direction of the mineral fibers of the second mineral fiber web, i. orientation generally in the second transverse direction.

Preferably, the process of the present invention further comprises a further step similar to step e) of making a fifth non-woven mineral fiber web similar to a third mineral fiber web and a bonding step in step f) of the fifth mineral fiber web with a second mineral fiber web in face-to-face contact. such that the second mineral fiber web is deposited between the third and fifth mineral fiber webs in the fourth mineral fiber web. In the manufacture of the fifth mineral fiber web, an integral composite mineral fiber web of the fourth mineral fiber web is obtained, the structure wherein the central body originating from the second mineral fiber web is sandwiched between oppositely compacted surface layers formed by the third and fifth mineral webs. fibers.

Preferably, the degree of composition of the first mineral fiber web is produced by producing a continuous ripple extending in the first longitudinal direction of the first mineral fiber web in order to obtain a (precisely structured, composite second mineral fiber web from which the surface layer (s) is (are) ) easy to separate.

With the proviso that the third mineral fiber web is provided as surface layers separate from the second mineral fiber web, the mineral fibers of the third mineral fiber web, as discussed above, are generally oriented along the second transverse direction. As a result, the third direction may coincide with the first longitudinal direction.

of mineral wool, can third with the first

With the proviso that the third non-woven kien fleece is produced on a particular manufacturing direction to be in any orientation, e.g. be consistent in the longitudinal direction and consequently be perpendicular to the second transverse direction. ί ’; T

The method of the present invention! The invention further preferably comprises the steps of preparing the first mineral fiber web of the base nonwoven mineral ylakes by placing the mineral fiber web in the overlapping layers such that: a more homogeneous and more compact mineral fiber web is obtained compared to the basic mineral fiber web; which in addition comprises mineral fibers generally oriented along the longitudinal direction of the mineral fiber base web. In the manufacture of the first mineral fiber web of the basic nonwoven mineral fiber web by placing the mineral fiber web into the overlapping layers, the general orientation of the mineral fibers of the basic nonwoven mineral fiber web is shifted in the longitudinal direction 1 of the mineral fiber web to the transverse direction of the first non - woven mineral fiber web. The basic nonwoven webs that all of the mineral fibers are preferably positioned such that they generally extend into the second transverse direction.

I-1

In accordance with the technique described in the above-mentioned published international patent application no. PCT / DK91 / 00382, publ. No. WO92 / 10602, the first and non-mineral fibers are preferably exposed to provide a more compact and second nonwoven web of compaction and compression under more homogeneous mineral fiber webs. Compaction _; and the compression may be either a height compression, a longitudinal compression, a transverse compression, and a combination thereof. The process of the present invention preferably further comprises the further step of height compressing the first non-woven mineral fiber web produced in step a) and preferably producing a woven from the basic non-woven mineral fiber web as described above.

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Further preferably, the method of the present invention may comprise a further step of longitudinally compressing the first non-woven mineral fiber web produced in step a) and further or alternatively another step of longitudinally compressing the second nonwoven mineral web produced in step c). In performing the longitudinal compression, the mineral fiber web is subjected to the longitudinal compression more homogeneously, leading to an overall improvement in the mechanical resistance and in most cases the thermal insulation properties of the longitudinally compressed mineral fiber web compared to the longitudinally uncompressed mineral fiber web.

As will be apparent from the following detailed description of preferred embodiments of the present invention, insulation panels ¹ vyro! Surprisingly, the mineral fiber webs according to the present invention exhibit improved mechanical properties and mechanical resistance when the second non-woven mineral fiber web produced in step ¹ , c.) Is subjected to transverse compression; in which the mineral fiber structure of the second non-woven mineral fiber rune is homogenized. Transverse compression of the second nonwoven web

H to significantly improve mechanical fiber boards, I mineral fiber web ¹ ! ^; mechanical

· I ^1, 'II woven; mineral fibers when exposed mineral fiber cross-stlarepozícii! The mineral fibers of the second non-inert insulating material of the second nonwoven are nonwoven nonwoven, the second of the second nonwoven mineral fibers.

The mineral fiber leads to the properties and efficacy of the comaterial produced, and assumes the reduction of the mineral fibers to the china and the poured mineral fiber web symmetrically distributed in the uncured mineral fiber web.

The method of the present invention may further advantageously comprise the step of applying the film to the side surface of both side surfaces of the first non-woven mineral fiber web (i) and / or applying the film to the side surface or both side surfaces of the second nonwoven mineral fiber web.

1 r

J ^J V

The film may be a film of plastic material, such as a continuous foil, a woven mesh, or alternatively netkahá I ^'E film of a non-plastics material, such as paper or fabric. The nonwoven insulating web produced by the process of the present invention can be provided with two opposite fibers, an insulating web of mineral and

has been placed by a fleece of mineral-composite central body of the composite

If the triple-layer insulating web is assembled, one surface may be provided with a plurality of coatings.

· The mineral fibers produce as L or both outer lateral: ί.

similar or same surface ( ^r '

The method of the present invention may further comprise, ^E ', a further step of compressing the fourth composite mineral web ^: lhz>

fiber for introducing a styrofoam composite mineral fiber web into a curing oven. The compression of the fourth composite mineral fiber web may include height compression, longitudinal compression and / or transverse compression. It is believed that pressing the fourth composite mineral fiber web can improve the homogeneity of the end product,

However, since the compression of the fourth composite mineral fiber web produces a homogenizing effect on the central body

And a fourth composite mineral fiber web, wherein the central body is formed by the central body of the second non-woven mineral fiber web.

In order to provide a more homogeneous and compact mineral fiber web that is fed to the curing oven in step g), the method of the invention preferably further comprises an additional step of compacting the fourth composite mineral fiber web prior to introducing the fourth composite mineral fiber web into the curing oven. By compacting the fourth composite mineral fiber web, the homogeneity of the end product is improved since compaction of the fourth composite mineral fiber web produces a homogenizing effect on the central body of the fourth composite mineral fiber web, wherein the central body is formed by the central body of the second composite mineral fiber web.

Step g) of curing the first curable binder and, optionally, the second and third curable binder, depends; the nature of the curing binder (s) and will be accomplished in many different ways, e.g. by simply exposing the curing binder or agents to a curing gas or a curing atmosphere, such as the atmosphere, by exposing the curing binder or agents to radiation,

I. ¹ such as UV irradiation or IR irradiation. Where the curable binder or thermosetting binder such as conventional resin-based binder agents are commonly used in the mineral fiber industry, the method of curing the curable agent or agents includes the step of introducing the mineral fiber web to be cured into the curing oven. Accordingly, the curing process is carried out by means of a curing oven. Other alternative curing devices may include IR emitters, microwave emitters, and the like.

Preferably, the plate segments are cut from the cured mineral fiber insulating web produced in step g) by cutting the cured fourth composite mineral fiber web into plate segments in a separate production step.

and

The above object, advantages and features, together with other objects, advantages and features, are further provided by an apparatus for producing an insulating composite web of fiber, comprising: i i

with many mineral-

a) first means for producing a first non-woven mineral fiber web defining a first longitudinal direction parallel to the mineral fiber web and a second transverse direction parallel to the first mineral fiber web, wherein the first mineral fiber web is made to contain mineral fibers located generally in a second transverse direction and comprising a first curable agent,

(b) second means for moving the first mineral fiber web in the first longitudinal direction of the first mineral fiber web;

I

(c) third means for folding the first mineral fiber web parallel to the first longitudinal direction and perpendicular to the second transverse direction so as to form a second non-woven mineral fiber web comprising a central body and oppositely disposed surface layers layering the central body;

generally perpendicular to the first longitudinal direction and the second transverse direction and the surface layers comprising the mineral fibers generally located in the second transverse direction,

H f

d) fourth means for moving the second mineral fiber ⁿ¹ in a first longitudinal direction

(e) fifth means for making the third nonwoven web from miles a mineral fiber defining a third direction parallel to the third mineral fiber web, wherein the third mineral fiber web is made to contain the mineral fibers. I! is not generally in the third direction and comprises a second curable binder agent and the third mineral fiber web is a mineral fiber web of higher compactness compared to the second mineral fiber web,

(f) sixth means for joining the third mineral fiber web to the second mineral fiber web in their face contact to produce a fourth composite mineral web;

i i '

Other fibers a

g) seventh means for curing the first and second curing means;

¹¹ 'of a curable binder such that the mineral fibers of the fourth composite mineral fiber web are bonded together to form an insulating mineral fiber web.

inN I í

The device according to the present invention may advantageously comprise:

I,, Any of the above features of the method of the present invention. i ¹ ).!

at

The above object, the above advantage and the above i

said features together with many other objects, advantages and features are additionally obtained by ppmocou of the mineral insulation board. .1 'new fibers according to the present invention, wherein said mineral fiber insulating board defines a longitudinal direction and includes:.

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1 'central body containing mineral fibers,

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a surface layer containing mineral fibers,

Also, the central body and the surface layer are interconnected in the face contact, the mineral fibers of the central body are positioned generally perpendicular to the longitudinal direction and perpendicular to the surface layer, the mineral fibers of the surface layer are located generally parallel to the longitudinal direction, the surface layer is more compact with central body and !!

I ii mineral fibers of the central body and mineral fibers

-r ui ·. J and the surface layer are joined together and connected in an integral structure through hardened bonding agents only in the unified hardening process and the "initially present in the non-hardened, d ¹ 'of non-woven webs from mineral fibers, in which said central body and said surface layer are produced.

The mineral fiber insulating board according to the present invention preferably comprises opposing surface layers of the same structure, coating the central body into the integral structure of the mineral fiber insulating board.

Description of the figures in the attached drawings ¹ ! 1 '; r ¹ d,

The present invention will now be described in more detail with reference to the drawings, in which FIG. 1 is a schematic and perspective view illustrating a first manufacturing step of producing a mineral fiber insulating web from a melt forming a mineral fiber; FIG. 2 is a schematic and perspective view illustrating a manufacturing step of compressing a mineral fiber insulating web, FIG. 3, 4, 5 and 6 are schematic and perspective views illustrating four alternative techniques for folding a mineral fiber insulating web, parallel to the longitudinal direction of the mineral fiber insulating web, i _L | FIG. 7 is a schematic and perspective view illustrating a manufacturing step of separating the surface layer of a composite mineral fiber insulating web produced according to the techniques described in FIG. 3-6, and the production degree of compaction of the surface layer, FIG. 8 is a schematic and perspective view illustrating POWER ^"1 • | L. ¹

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The fifteen degree of transverse compression of the mineral fiber insulating web produced in the manufacturing step shown in FIG.

7, '. L fig. 9 is a schematic and perspective view illustrating a manufacturing step of bonding a surface layer, preferably compacted

1 of the surface layer to the mineral fiber insulating web, or preferably to the remaining part of the mineral fiber insulating web produced in FIG. 3-6 and from which the surface layer was separated according to the technique described in FIGS. 7, in accordance with the techniques described in FIG. 10 is a schematic and perspective view, the degree of curing of the mineral fiber ride fleece and the mineral fiber manufacturing step to illustrate the schematic of the mineral fiber web.

Fig. 11 is a pleated insulating fleece as described in FIG.

dividing the cured insulating web i i! , plate segments, l11 and a perspective view illustrating

The mineral fiber-produced technique ^{6 is a} perspective view illustrating an example. Insulation board of mineral wool fig. 12 is a schematic embodiment of the segme:

kien, manufactured according to the techniques described in FIG. 1-10, 'i ·'. >

Fig. 13 is a schematic and perspective view illustrating a second embodiment of a segment of a mineral fiber insulating board made according to the patterns described in FIG. 1-10, FIG. 14 and 15 are diagrams of a line manufacturing apparatus, insulating boards in accordance with the techniques of the present invention; and

FIG. 16 and 17 are diagrams similar to those of FIG. 14 and 15, illustrating production parameters on an online production apparatus, illustrating production parameters in the production of mineral fiber building materials ¹ produced by a roofing fiber insulating material in accordance with the techniques of ip, heat fleece: from:

W ¹ i 'ι-insulating plates of mineral mineral fiber web produced Joint invention.

In FIG. 1, a first step of manufacturing a mineral fiber insulating web is described. The first stage involves the formation of mineral fibers from the melt-forming melt that is and which is supplied from the outlet 32 of the furnace 20 rotating the spinning wheels to which the mineral fiber-forming melt is supplied by the mineral fiber-forming melt stream 36. Stream 36 taΖ.1Ί ____ i is supplied to the spinning of all mineral fibers

I furnace J__.

four fast down

34, as the mineral fiber forming vines 34 in a radial direction to the wheels and at the same time being supplied to the rapidly rotating wheels 34 in the axial direction thereto, a flow of cooling flows which causes the formation of individual mineral fibers that are ejected or sprayed from the rapidly rotating spinner The mineral fiber spray 38 is collected on the continuously operating first conveyor belt 42 of the new fibers, also adds the fibers either directly to the mineral fiber insulating web 40 or at the stage of expelling the mineral fibers from the spinning fibers. wheel 34, i.e., at the stage of formation of the individual mineral ^bed

I '1' | I ^{; 1} , forming a primary insulating web 40 of minerals,

The thermosetting binder is such a primary mineral fiber insulating web 40. The first conveyor belt 42 is, as shown in FIG. 1, composed of two sections of a conveyor belt. The first section of the conveyor belt is inclined with respect to the horizontal direction and with respect to the second substantially horizontal section of the conveyor belt. The first section comprises a collector section, while the second section comprises a conveyor section by which the mineral fiber insulating web 40 is conveyed to the second and third continuously operating conveyor belts designated 44 and 46, which operate synchronously with the first conveyor belt 42 and coat ( sandwich) a primary mineral fiber insulating web 40 between two attachments, h.

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H..

interconnected surfaces of the second and third conveyor belts 44 and 46.

The second and third conveyer waistband fourth conveyer belt 48 which constitutes a collector doF lawyer's web, in which, collects the second insulating web and ^one of the mineral fiber web, as the second and third conveyer belts 44 and 46 move over the upper surface of the fourth conveyer belt 48 in the transverse direction of the fourth conveyor ^ýzhíadom,: I belt 48. the secondary insulating web 50 from the mineral fiber is then produced by placing the insulation of the primary mineral fiber web in overlapping generally laterally to the fourth conveyor belt 48th

and 46 are associated with

For en fibers than donation with less fibers.

¾ ~ ~ * y

the production of the secondary insulating material 40 from the primary insulating web 40 is shown in FIG. > 1, an insulating fleece 50 of ₍ i;

homogeneous primary mineral as well as insulating non-woven fabric 50 of mineral fiber, more homogeneous sec. fibers in comparison with a fleece of mineral fibers

In particular, the insulating web 50 is predominantly oriented in the direction of the mineral fibers of the primary other fibers parallel to the conveying of the first conveyor steaming web 40 from the mineral direction of the web 40 and the direction <su 42. the mineral orientation of the mineral fibers of the second mineral fiber substantially perpendicular, ii N and transverse to the longitudinal direction of the second mineral fiber insulating web 50 and the conveying direction of the fourth conveyor belt 48.> ¹

At the inlet instead of the insulation, FIG. 2 is given instead for compaction and homogenization

11. A mineral fiber web 50 ' ^J , whereby for the purpose of compacting and homogenizing the incoming mineral fiber web 50 ' for producing an exiting mineral fiber web 50 '

The protruding mineral fiber web 50 ' is more dense

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...

and more homogeneous compared

50 'of mineral fibers. Log of chiral fiber can form insulating [to the input-insulating web insulating web 50 mine50 ^one of the mineral fiber web produced in the station shown in FIG. First

í I ¾ I i '. j

The compaction site comprises two sections. The first section contains ¹ i.

dopravmkové exceed two webs 52 '' and 54 ¹ *, which are provided on the upper side surface, and | lower side surface RU 50 of the mineral fiber web. The first section essentially comprises a section in which the mineral fiber web 50 'entering the section is subjected to high pressure causing a reduction in the overall height of the mineral fiber web and compaction of the mineral fiber web. Consequently, the conveyor belts 52 ' ¹ and 54 ' ' are positioned so as to be considered from the inlet end on the left side of FIG. 2 * wherein the inlet of the mineral fiber web 50 'is to the first section, towards the outlet end from which the highly compressed mineral fiber web is delivered to the second section of the compaction site.

The second rollers ', while the compaction site section comprises three sets 56 ¹ and 581, 56' ¹ and 58 * ¹ and 56 ^{1 '1} and 58 ¹ ' ^{1 respectively} . The rollers 56 and ^{1 1 1} are arranged on the upper side surface of the rollers 58 of the web ^1, 58 '' IJA 58 ^{1 1 1} are placed in the IL t ______ ". ,. x.

side of the surface of the mineral fiber web. The second section of the compaction site provides longitudinal compression of the mineral fiber web and this later compression produces a homogenization of the mineral fiber web by rearranging the mineral fibers of the mineral fibers as compared to the initial structure more homogeneous. The three sets of rollers 56 '' and 58 ', and 56 a, b ^{1 1 1' 1 1} and 58 ^1, the second section Otáhal, rotational speed, which is not less than

----- 52 ^{1 1} and 54 kien fleece structure

56 'and 58 ^1, tea same rotational speed of the conveyor belts 52 ¹¹ and 54 ¹ of the first section, causing the longitudinal compression of the mineral fiber web. The height compressed and longitudinally compressed mineral fiber web exits from the compaction point shown in FIG. 2, denoted by h50 ¹¹ .

[H ¹

H h h

Η ·

May be modified, i. a first section forming a section of a height section forming a section of one or two of FIG. 2, performs compression, and becomes

It will be appreciated that the combined height and longitudinal compaction site shown in FIG.

By omitting one or two compression sections, or alternatively the other three.

last press. When omitting the sections of the firing point shown in the compaction section, only the compaction or the altitude compression or alternatively longitudinal compression is omitted. Although the height compression section has been described as comprising conveyor belts and the longitudinal compression section has been described as comprising rollers, both sections can be performed with the aid of belts or rollers. Also, the height compression can be accomplished with

The rollers and the longitudinal compression section can also be equipped with conveyor belts. _p

In FIG. 3, 4, 5 and 6, four alternative techniques of folding the mineral fiber insulating web in the longitudinal direction of the mineral fiber insulating web f are shown. In FIG.

i ’

3,4,5 and 6, J-insulating web 50 'of the mineral fiber ¹ may constitute the output insulating web 50' of the mineral fiber ^1, as shown in FIG. 2, or alternatively a mineral fiber insulating web 50 produced at the location shown in FIG. First

In FIG. 3, the insulating web 50 'of the mineral fiber ¹ is contacted with the pressing roller 51, the action of the applied continuous foil 99 of a thermoplastic material on the top surface of the insulating web 50 ¹¹ of the mineral fiber. The endless film of thermoplastic material is supplied from the roll 98. After the endless film 99 has been applied to the upper side of the surface of the mineral fiber insulating web 50 ¹¹ , the mineral fiber insulating web 50 ¹¹ and the endless film 67 are applied over the corrugated aperture 64. ¹ , wherein the opening comprises two opposing, corrugated guide plates 64 ¹ and 66 ¹ and two opposing end walls, one of which is indicated by 62 '. It is understood that the film 99 should have a 50-insulating web ¹¹ of an elasticity allowing that the foil 99 mineral fiber, are folded, the opening 60 ¹ and the corrugations of plates 64 '

The end walls of the corrugated and 66 ^L corrugated apertures extend from the inlet end of the corrugated aperture 60 'to the outlet end thereof. Such as insulating fleece

Also, the corrugated sheet 99 is embossed with a mineral fiber insulating web in its longitudinal direction and provides a wavy and longitudinally folded

Other fibers.

50 ' ¹ of mineral fibers and;

60 ', __'. . Insulating fleece 50 ^'11 of mineral

In FIG. 4 shows an alternative technique for producing a corrugated and longitudinally folded mineral fiber insulating web 50 ¹¹¹ from a flat mineral fiber insulating web 50 ¹ '. Said technique on clbr. 4 differs from the technique described above in FIG. 3 by using an aperture 60 ¹¹ , wherein the aperture differs from a corresponding aperture 60 ¹¹ , said aperture 60 * ¹ having oppositely disposed ones, one of which is indicated by the reference numeral 64 ¹¹ H; . :

wall ends, sle

62 ''. ;

vor 60 ^'1, FIG. 3 by, not the curved wall Vou tag "which is a designated vzťahoi further alternative technique of producing a clay EHO web 50 ¹ * ^{1 1} Mineral VLA ¹¹ web 50 of the mineral fiber.

of mineral fibers 5 produced by the rollers of the walls 62 ' ¹ ', the ends of the walls 62 'and in FIG. 5 is d. longitudinally folded insulating sheaths of flat insulating corrugated and longitudinally folded by the technique illustrated in FIG. 60 ' ¹ ', containing planar for the same purpose as planar walls 62 ¹¹ arranged in FIG. 3 and 4, in order to zaizolačného web 50 '' is in accordance with the Vou serving up the web ^50,111 krivené end of guiding the outer edges plcjchého insulating web 50 ^{1 1} the mineral fiber to the corrugated and longitudinally folded configuration insulating web 50 * ¹ '

50 ¹¹ 'further from mineral fiber.

includes a total of nine roller sets, each roller set comprising two rollers located on opposite sides of the mineral fiber insulating web. In FIG.

There are two rollers marked with 68 ¹ . Valíll sets

Roller assembly i

The tabs define a tapered [taper configuration from the inlet end of the roller assembly. 6 ° ^{1 '1} to the output ^end; J ·.,.

It is supplied from the wobble longitudinally folded insulating web 50 ¹¹ of the mineral fiber web. Tapered configuration helps ensure that the flat insulating web 50 ^'1 to corrugate and longitudinally fold into the configuration zložjeného insulating web 50 ^{1 1 1} mineral fibers such as

5th

f.

alternative production technique along 50 '' '

FIG. 6 j L of the mineral fiber elevation / longitudinal compression, instead of 60 ^{1 1 1 1} ,

In FIG. 6 shows a non-composite insulating material according to the technique described above, which forms a combined and instead of transverse compression of the six roller sets, of the three roller sets 1 as described above.

Rollers location, 152 'a

I

Thus, the 60 ^{L 1} '' site contains all three sets being formed

581; 56 ^{1 1} , 58 ^{1 1} ; and 56 & apos ^; , described above.

' ^{1 1} * * stated on jobr. 6 further comprises three sets of lirava consisting of two

Second

wherein the first set of the second set is t set j; é

154 '''. Rollers 152 ¹ , 152

154 ¹ , and the third two rollers 152 '' ¹ formed by two and 154 '''. The rollers 152 ', 152 and 152 ^{11 1} are positioned to fulminate and ^one side surface of the insulating web 50 ¹ * mineral fiber like the rollers 56 ^1, 1:56 and ^{1 1} 56 ^{1' first} Three rollers 154 ¹ , ¹

154 '' and 154 ' ¹ ' are placed on the bottom of the mineral fiber similarly \

Three roller assemblies

154 ¹¹¹ serve this as described above with the rollers 152 ¹¹¹

152 ' ¹ '

Three rollers side insulating fleece 50 ¹¹ as rollers 58 ¹ . 58 ^{1 1} 154 ';

152 ''. 154 ¹ ';

track assemblies

2, ie the purpose of height compression of the mineral fiber insulating web 50 ¹¹ entering 60 ^{1 111} .

ŕ ‘!

Three sets of height compression rollers 152 ¹ , 154 ¹ ;

¹ 152 ¹ 154 ^-1, and 152 ^{1 1 1} , 154 ^{1 1} are similar to the above described belt assemblies 52 ¹ ', 54 ¹ *, [1] operating at rotation speed

- ¹ 1;

equal to the velocity of the insulating web 50 passes from the ¹ *, ~: l I of chiral fiber to section 60 * ^{"1" first} Three sets of rollers forming compression, ie rollers

58 ¹ '', are operated at a reduced rate of longitudinal compression.

height compression of the longitudinal section '58 * ¹ and 56 ^{1 1 1} , the rotational speed determining

6, are provided by four reference numbers 160 ¹ ,

To generate the longitudinal composition of the mineral fiber insulating web 50 ' ¹ station 60 ''', shown in FIG. crankshaft assemblies, marked: 160 ¹ ', 160''' and 160 ''''. The crankshaft assemblies have the same structures, and one crankshaft assembly 160 ' ¹ is described below, since the crankshaft assemblies 160 ¹ , 160''and 160 ^1.11 are identical to 160 ¹ ' and contain the same elements, but indicated by the assembly crankshaft with crankshaft assembly elements 160 ¹ '%

with the same reference numerals, with the addition of one, two or three signs. and

160 ¹ 'includes a motor 162'', kto164 ¹¹ underlying the same hriali konhriadeľa 166''. each

The crankshaft assembly moves the toothed assembly of 166 ¹¹ . A total of six figuration gear wheels 168 mounted at the outlet engage the corresponding gear wheels 170 ¹¹ form a crankshaft, further both ¹¹ and the crankshaft arm 174 ¹¹ are positioned to move from a lowered position to an elevated position between two connected rollers on the right hand side side, the lower side insulating web 50 ^'1 of minerjálnych fiber input to the station 60 ^{11 11} and are adapted' to cooperate with the crankshaft lever system 160 ¹ of the crankshaft, disposed on the I to the right, the top of the entry-insulating web 50 & ¹¹ of the mineral fibers up to 60 ¹¹¹¹ .

of gear wheels 168 ¹¹ , its wheels 170 ''. Each! Zi

The arm drive wheel of the system extending the shaft guide wheel j 172. The crank arms 174 '' are cranked

Likewise, the crank arms! crank arm shaft i 1 '' Il '

I '1 ¹ located on the left, on the top of the mineral fiber co-operating on its shaft 160''' and 160 '''' / insulating fleece 50 * ¹ are adapted for

Γ r

f;

first set of arms 174 ¹ . 174 ¹¹ , crankshaft arm shaft systems 160 'are located and underside at the inlet to location 60 ¹¹¹¹ in the manner described.

As is obvious

174 ''^'1 in FIG. 6, crank

160 '' between the first and second set of rollers 152 ¹ , 154 'and 152 ¹¹ .

ί

154 ¹ '. Similarly, a second set of crankshaft arms is positioned between the second and third sets of rollers 152 ' ¹ ,

160 ¹ '' ¹

154 '' and 152 ''',154' ¹ '.

The crankshaft arms of each of the six crankshaft arm sets are equally wide. In each of the systems 160 ¹ . 160 ^{1 1} , 16Q ¹ ' ¹ and 160 ^1.11 crankshaft arms are the first crankshaft arm widest and the width of the crankshaft decreases with each crankshaft arm system from the first crankshaft arm to the sixth crankshaft arm located behind the sixth crankshaft arm rollers 56 * ¹¹ , 58 ¹ ''.

i ^;

Using motors, 160 ¹ . 160 ¹ '. 160 ^'11 and 160 ¹¹¹ ', the crankshaft arms of a specific crankshaft set rotate synchronously with the remaining three crankshaft arms of the respective crankshaft arm set. In addition, the crankshaft arms of all six crankshaft sets operate synchronously and in sync with the rate of entry of the mineral fiber insulating web 50 ¹¹ into the 60 '' ¹ 'location. The widest or first set of crankshaft arms is adapted to begin folding the mineral fiber insulating web 50 ¹¹ , while crankshaft arms 174 ¹¹ and 174 ' ^{111 are} lifted by the system 160' ¹ and 160 ^1.11 crankshaft arms from below the bottom surface of the insulator 50 ¹ 'of the mineral fiber and are brought into contact with the underside surface of the insulating web 50 ¹¹ mineral fiber, and as the crankshaft levers 174 ¹ and 174 ^{1 1 1} of the crankshaft systems 160 ¹ and 160'^'1 of crankshaft levers of the positions of the the upper side surface of the insulating web 50 of the mineral fiber ¹¹ and is brought into contact with the upper side surface of the insulating web 50 * of the mineral fiber web.

Further rotation of the output shafts 166 ¹ , 166 ¹ ', 166 ¹ ' ¹ and 166 ¹¹¹¹ causes the crankshaft arms of the first crankshaft arm set to move against the center of the mineral fiber insulating web 50 ' ¹ , thereby causing a central bending of the insulating web 50 ' ¹ of mineral fibers. As the crankshaft levers of the first set of crankshaft reach the central position, the arms 160 'and 160' ¹¹ systems crankshaft, whereas the crankshaft levers of the system 160 ¹¹ and 160 ¹¹¹¹ are lowered and consequently brought out of contact with the upper and lower side the surface of the mineral fiber insulating web 50 ¹¹ .

As insulating web 50 ^'1 the mineral fiber is moved further through the station 60 ^1' '', the next or second set of crankshaft levers generates a second and a third fold-insulating web 50 ¹¹ mineral fiber, which second or third fold is positioned at opposite sides of the the first bend, while the third, fourth, fifth and sixth crankshaft arm sets produce a further bending of the mineral fiber insulating web to obtain a total, longitudinal bending of the mineral fiber insulating web.

Crankshaft arm width of each crankshaft arm assembly, gear ratio 164 ¹ , 164 '', 164 ^{1 11} and 164 '''', gear ratio 164 ', 164' ¹ , 164 ^'11 and 164 ¹¹ '' , the gear ratio of gears 168 and 170 and the speed of entry of the mineral fiber insulating web 50 ¹¹ into the location 60 ' ¹¹¹ are interrelated and further adjusted to rotational speed by the height compression and longitudinal compression section for producing the longitudinally bent and height and longitudinally compressed insulating webs. 50 ^'11 mineral fiber.

The integration of the height compression section, the longitudinal compression section and the longitudinal bending section into a single location, as described above for giant 6, is not essential to the operation of the longitudinally bending crankshaft systems described above in FIG. 6. The height compression, longitudinal compression and longitudinal bending sections may be separated, but the integration of all three functions reduces the overall size of the production equipment. In addition, it should be understood that the bending of the mineral fiber web as described above with reference to FIGS. 4, 5, and 6 provides transverse compaction and compression of the web, further providing web homogenization as compared to the bent incoming web.

i 'Ί i

In FIG. 11 is a vertical cross-sectional view of a corrugated and longitudinally bent mineral fiber insulating web 50 ^L & apos ^; . The corrugated and longitudinally bent mineral fiber insulating web 50 * ¹¹ comprises a central core or body 28 and opposed

I

I positioned surface layers 24 and 26, wherein the surface layers 24 i

and 26 are separated from the central core or body 28 warp _x 'I Joint and longitudinally ^folded! The mineral fiber web 50 ¹¹¹ along the imaginary lines 20 and 22. The surface layers 24 and 26 of the corrugated and longitudinally bent mineral fiber insulating web 50 ' ¹ ' are composed of segments of a bent mineral fiber insulating web, wherein the segments comprise mineral fibers which are oriented substantially transversely with respect to the longitudinal direction of the corrugated and longitudinally bent mineral fiber insulating web 50 ^{1 1 1} . The corrugated and longitudinally folded insulating web 50 ^{1 1 1} The mineral fiber is made of a second insulating web 50 from the mineral fiber by bending the second insulating web 50 from the mineral fiber web, optionally after compacting the secondary insulating web 50 from the mineral fiber as will be described with reference to Fig. 8 and overall

-, 26 I ΐΐ

- I;

As a result, the orientation of the mineral fibers of the second mineral fiber insulating web 50 'is maintained by the segment ¹ ''.

I corrugated and longitudinally folded web 50 of insulating mineral fiber ^111, which segments together constitute the surface layers 24 and 26 · ¹ j

The central core or body 28 of the corrugated and longitudinally folded mineral fiber insulating web i 50 ¹¹ * is

Ί!

composed of segments bent insulating web 50 ^{'1 1} mineral fibers, which are bent perpendicular to the segments of the surface layers 24 and 26 insulating web 50 ^{1 1 1} mineral fiber. As a result, the mineral fibers of the central core or body 28 of the corrugated and longitudinally bent / insulating mineral fiber web 50 ¹¹¹ are oriented substantially perpendicular to the longitudinal direction as well as the transverse direction of the corrugated and longitudinal f '.

bent 50 '1 ^{1 1} mineral fiber insulating web.

I

The corrugated and longitudinally folded insulating web 50 ¹¹¹ of the mineral fiber to obrJ 9 and produced in accordance with the techniques discussed above with reference to FIG. 3, 4, 5 and 6 are further processed at the location illustrated in FIG. 7, at which point the surface layer 24 separates from the central core or body 28 of the corrugated and longitudinally bent mineral fiber insulating web 50 ¹¹¹ along the imaginary line of separation 20 shown in FIG. 9. Separation of the surface layer 24 from the remaining portion of the mineral fiber insulating web is carried out by means of a cutter 72 while supporting and transporting the mineral fiber insulating web by conveyor means.

i. The cutting tool 72 may be a stationary tool or knife, or alternatively it may be a transverse inverting cutting tool. The surface layer separated from the mineral fiber insulating web exits the path of the remaining portion of the mineral fiber insulating web by means of a conveyor belt 74 and is conveyed by the conveyor belt 74 to three roller assemblies comprising the first

Even ^one set of rollers 76 and 78 ', a second set of rollers 76' ¹

- 2Ί

1 'and 78 ¹¹ and a third set of rollers 76 ¹ ' ¹ and 78 ¹ '', wherein the three sets 1 '' together form a compaction or compression section similar to the second section corresponding to the location described above with respect to FIGS. 2. i

In FIG. 8, there is shown a transverse-depressing point which is indicated by the reference numeral 80 as a whole. In the station 80, the central core or body "28 or alternatively the corrugated and longitudinally folded insulating web 50 ¹¹¹ of mineral fibers produced at one of the stations described above with reference to Fig. 3, 4, 5 and 6, contact two conveyor belts 85 and 86 which define the compression that acts on the mineral fiber insulating web and thereby compresses it transversely, and contacts a total of four surface-rotating rollers 89a, 89b, 89c and 89d, which together with similar rollers not shown in FIGS. located opposite rollers 89a, 89b, 89c and 89d serve to assist in transverse compression of the central body or core 28. The conveyor belts 85 and 86 are supported on rollers 81, 83 and 82, 84.

From the transversally-compressing station 80. is supplied laterally compressed and compacted central core or body 28 ^first As the central core or body 28 moves through the transverse compression location 80 and converted into the transversely compressed central core or body 28 ', the body or core is supported by rollers positioned as an inlet roller 87 and an outlet roller 88.

Although the central core or body 28 entering the transverse compression location 80 is preferably comprised of the above-described central core or body separated from the mineral fiber insulating web 50 ¹¹ as described above with respect to FIG. 7, the mineral fiber insulating web 50 ^{11 may} alternatively be made at the location 80 shown in FIG. 8th

If the central body or core 28 or the mineral fiber insulating web is 50 '' ', | to be transversely compressed

Also, at point 0, provided with an upper surface layer, such as the film 99 described above with respect to FIG. 3, the film should have a structure that is compatible with the transverse compression of the web and film. The film applied to the upper surface of the mineral fiber insulating web 50 ¹ 'as shown in FIG. 3 should be stlačiteíná upraviteíná and the reduced width of the transversally compressed central core or body 28 ¹ and compressed transversely of the mineral fiber emerging from the transversally-compressing station 80..

i 'i

After compacting the separated surface layer 24 as described above in FIG. 7, the dense surface layer 24 returns to the remaining portion of the mineral fiber insulating web or the central core or body, which has preferably been transversely compressed as described in FIG. 8, and are in face contact with the upper surface of the central core or body 28 as shown in FIG. 9th

i I

In FIG. 9, a roll set comprising a roll 79 ¹ and a roll 79 ¹¹ positioned on the top and bottom of the surface of the surface layer 24, a roll set by which the surface film 99 ¹ supplied from the roll 98 ¹ is applied to the top side of the compacted surface layer 24. From the rollers 79 'and 79' ^1, 24 is a surface layer that is integral with insulating mineral fiber web is higher compactness as compared to the central core or body 28, is shifted towards the upper side surface of the central core or body 28 by means of two rollers 77 and ¹ 77 ^{1 1} . The roller 77 ¹¹ is located below the surface layer 24 and forms a rotatable roller while the roller 77 ¹¹ , which is located above the upper surface of the surface layer 24, serves to compress the compacted surface layer 24 into face contact with the upper surface of the central core or body. 28, which is supported and transported by the conveyor belt 70 also shown in FIG. 7. After the dense surface layer 24 has been placed in face contact with the top of the surface of the central core or body

28, a mineral fiber insulating web assembly is provided, which is denoted as a whole by the reference numeral 90.

In FIG. 9, another film 99 '' is shown in broken line. This foil is supplied from roll 98 ¹¹ . The film 99 ¹¹ may be a continuous film or alternatively an apertured film, i.e. a film similar to the surface film 99 ¹ described above. It should be emphasized that the foils 99, 99 99 ¹ and ¹¹ contain any characters that may be released if is to be produced integral structure of the mineral fiber web. Alternatively, one or more of said films, or all of the films, may be provided in various embodiments of a mineral fiber insulating web produced according to the present invention.

It should be noted that the compacted surface layer 24 that is separated from the mineral fiber insulating web 50 ¹¹¹ as shown in FIG. 7, may alternatively be provided from a separate production line, such as one of the manufacturing sites shown in FIG. 3, 4, 5 and 6, which can be directly connected to the manufacturing site shown in FIG. 9, or through the manufacturing site shown in FIG. 8 and thus the manufacturing site shown in FIG. Preferably, the manufacturing site shown in FIG. 7 adapted to separate the two surface layers from the central core or body 28 to produce two separate surface layers separated from the opposing surfaces of the central core or body 28, and the surface layers are treated in accordance with the technique described in connection with FIG. 7 for the production of two highly compacted surface layers which, in accordance with the technique described in connection with FIG. 9, are connected to the central core or body 28 on opposite sides thereof to form a coating / sandwich / central core or body 28 which has been preferably transversely compressed as described above with respect to FIG. 8, between two opposing surface layers similar to the surface layer 24 shown in FIG. 9th

- 30 j

In FIG. 10, the mineral fiber insulating fleece assembly 90 is moved through a curing point including a curing oven or curing oven containing a countercurrent.

placed heat treatment furnace sections 92 and 94 that generate heat to heat the mineral fiber insulating web assembly 50 to an elevated temperature such that the thermosetting binder of the mineral fiber insulating web assembly and the core or core fiber core assembly and core or core body core and / or core mineral fibers of the compacted surface layer or layers so as to form an integral mineral fiber insulating fleece that

When the film 99 and optionally the endless film 99 ^L and 99 ^L * are present, the thermoplastic material of the films 99, 99 ^L and 99 ^L 'is also melted, providing further bonding of the mineral fibers of the mineral wool insulating web. fibers. In FIG. 10 is the individual panel segments 10 th ¹ ', comprising a central core 12 and a top layer 14. The top layer 14 mu made from the compacted surface layer 24, whereas the core 12 is made from the central core or body 28 of the corrugated and longitudinally folded insulating web 50 '' ¹ the mineral fiber, shown in FIG. 9th

In FIG. 12 is a fragmentary and perspective view of a first embodiment of a plate segment of a mineral fiber insulating web according to the present invention, designated 10 as a whole. The plate-like segment 10 comprises a central core 12 and an upper layer 14, and a lower layer 16 made of a surface layer of a mineral fiber insulating web 50 ''. Reference numeral 18 denotes the core segment 12 of the plate segment 10, wherein the segment 18 is made of a central core or body 28 of corrugated and longitudinally folded mineral fiber insulating web 50 ¹¹¹ , wherein the central core or body is preferably transversely compressed as described above in connection with Fig. 8th

In FIG. 13 is a fragmentary and perspective view of a second embodiment of a plate-shaped segment of a mineral fiber insulating web according to the present invention, denoted as a whole by 10 '. Similar to the plate segment 10 described above with respect to FIG. 12, the plate-like segment 10 'comprises a central core 12, an upper layer 14 and a lower layer 16. In addition, a top surface cover 15 is provided, which is formed by the film 99' described above with respect to FIG. 9. The top surface cover 15 comprises a web of plastic material, a woven or nonwoven plastic film, or alternatively, the cover may be of non-plastic materials such as paper materials, serving solely for design and architectural purposes. Alternatively, the topsheet 15 may be applied to the mineral fiber insulating web after curing of the thermosetting binder agent, i. upon exposure of the mineral fiber insulation web 90 to the heat generated in the drying sections 92 and 94 shown in FIG. 10.

DETAILED DESCRIPTION OF THE INVENTION

Example 1

A thermal insulation board of a structure similar to that of FIG. 1, manufactured from a mineral fiber insulating web by the method of the present invention as described above with respect to FIG. 1 - 10, is manufactured according to the specifications below:

The method comprises steps similar to those described above with respect to FIG. 1, 2, 6, 7, 8, 9 and 10. The production output of the device is 5,000 kg / h. The basis weight of the primary web produced at the location described in FIG. 1 is 0.4 kg / m ² and the width of the primary web is 3600 mm. The density of the central core or body 28 is 20 kg / m ³ . The longitudinal compression ratios produced at two separate locations similar to those of FIG. 2 are 1: 1 and 1: 2 and the transverse compression ratio produced at the location of FIG. 8 is 1: 2. The final board comprises a single surface layer with a basis weight of 1 kg / m. The longitudinal compression ratio of the layer is 1: 2. The coating thickness is 10.00 mm and the coating density is 100 kg / m ³ . The width of the mineral fiber insulating web produced in FIG. 1 is 1800 mm.

The production parameters used are given in the table below

A and B:

Table A

total thickness B C D E F mm m / minxlO m / min m / min m / min m / min m / min 50 11.57 51.44 51.44 51.44 15.72 25.72 75 11.57 40.26 40.26 40.26 20.13 20.13 100 11.57 33.07 33.07 33.07 16.53 16.53 125 11.57 28,06 28,06 28,06 14.03 14.03 150 11.57 24.37 24.37 24.37 12.18 12.18 175 11.57 21.53 21.53 21.53 10.77 10.77 200 11.57 19.29 19.29 19.29 9.65 9.65 225 11.57 17.47 17.47 17.47 8.74 8.74 250 11.57 15.96 15.96 15.96 7.98 7.98 275 11.57 14.70 14.70 14.70 7.35 7.35

A = spin speed 42 of the spinning chamber

B = belt speed 48

C = belt speed 70 after first longitudinal compression (Fig. 2)

D = belt speed 70 after transverse compression (Fig.8)

E = belt speed 70 after second longitudinal compression (Fig. 2)

F = belt speed 70 in front of the curing oven (Fig. 5)

Table B

total thickness G H I J The L mm kg / m ² kg / m ² kg / m ² kg / m ² kg / m ² kg / m ² 50 0.45 0.45 0.90 0.40 0.80 1.80 75 0.58 0.58 1.15 0.65 1.30 2.30 100 0.70 0.70 1.40 0.90 1.80 2.80 125 0.83 0.83 1.65 1.15 2.30 3.30 150 0.95 0.95 1.90 1.40 2.80 3.80 175 1.08 1.08 2.15 1.65 3.30 4.30 200 1.20 1.20 2.40 1.90 3.80 4.80 225 1.33 1.33 2.65 2.15 4.30 5.30 250 1.45 1.45 2.90 2.40 4.80 5.80 275 1.58 1.58 3.15 2.65 5.30 6.30

G = basis weight of mineral fiber insulating web on belt

H = basis weight of mineral fiber insulating web after first longitudinal compression (Fig. 2)

I = basis weight of the mineral fiber insulating web after transverse compression (Fig. 8)

J = basis weight of mineral fiber insulating web before second longitudinal compression (Fig. 2)

K = basis weight of mineral fiber insulating web after second longitudinal compression (Fig. 2)

L = basis weight of mineral fiber insulating fleece in front of the curing oven.

In FIG. 14 is a diagram illustrating the relationship between the parameters shown in Table A. The labels used in FIG. 14 correspond to the indications for the parameters listed in Table A.

In FIG. 15 is a diagram illustrating the relationship between the parameters listed in Table 8. The designations used in FIG.

Example 2

A composite roofing plate similar to that shown in FIG. 12, made from an insulating web produced by the method of the present invention as described above with reference to FIG. 1 - 10 is produced according to the following data:

The method comprises steps similar to those described in FIG. 1, 2, 6, 7, 8, 9 and 10. The production output of the plant is 5,000 kg / h. The basis weight of the primary web produced at the location described in FIG. 1 is 0.6 kg / m ² and the width of the primary web is 3600 mm. Density of central core or body

Q1 is 120 kg / m. The longitudinal compression ratios produced at two separate locations similar to those of FIG. 2 are 1: 3 and 1: 2 and the transverse compression ratio produced at the location of FIG. 8 is 1: 2. The final board contains a single surface layer of 3.57 kg / m ² . The longitudinal compression ratio of the layer is 1: 2. The coating thickness is 17.00 mm and the coating density is 210 kg / m ³ . The width of the mineral fiber insulating web produced in FIG. 1 is 1800 mm.

The production parameters used are given in the table below

C and D:

Table C

total thickness B C D E F mm m / minxlO m / min m / min m / min m / min m / min 50 7.72 38.58 12.86 12.86 6.43 6.43 75 11.57 27.92 9.31 9.31 4.65 4.65 100 11.57 21.87 7.29 7.29 3.65 3.65 125 11.57 17.98 5.99 5.99 3.00 3.00 150 11.57 15.26 5.09 5.09 2.54 2.54 175 11.57 13.26 4.42 4.42 2.21 2.21 200 11.57 11.72 3.91 3.91 1.95 1.95 225 11.57 10.50 3.50 3.50 1.75 1.75 250 11.57 9.51 3.17 3.17 1.59 1.59 275 11.57 8.69 2.90 2.90 1.45 1.45

A = spin speed 42 of the spinning chamber

B = belt speed 48.

C = belt speed 70 after first longitudinal compression (Fig. 2)

D = belt speed 70 after transverse compression (Fig.8)

E = belt speed 70 after second longitudinal compression (Fig. 2)

F = belt speed 70 in front of the curing oven (Fig. 5)

- 36 I

Table D

total thickness G H I J The L mm kg / m ² kg / m ² kg / m ² kg / m ² kg / m ² kg / m ² 50 0.60 H 00 about_____ 3.60 1.82 3.63 7.20 75 0.83 2.49 4.98 3.19 6.38 9.95 100 1.06 3.18 6.35 4.57 9.13 12.70 125 1.25 3.86 7.73 5.94 11.88 15.45 150 1.52 4.55: 9.10 7.32 14.63 18.20 175 1.75 5.24 10.48 8.69 17.38 20.95 200 1.98 5.93 11.85 10.07 20.13 23.70 225 2.25 6.61 'i 13.23 11.44 22.88 26.45 250 2.43  1 7.30 ! 1 14.60 12.82 25.63 29.20 275 2.66 7.99. 15.98 14.19 28.38 31.95

G = basis weight of mineral fiber insulating web on belt 42

H = basis weight of mineral fiber insulating web after first longitudinal compression (Fig. 2)

I = basis weight of the mineral fiber insulating web after transverse compression (Fig. 8)

J = basis weight of mineral fiber insulating fleece before second longitudinal compression (Fig. 2)

K - basis weight of mineral fiber insulating web after second longitudinal compression (fig.2)

L = basis weight of mineral fiber insulating fleece in front of the curing oven.

In FIG. 16 is a diagram similar to FIG.

14 illustrating the relationship between the parameters listed above in Table C.

In FIG. 17 is a diagram similar to FIG. 15 illustrating the relationship between the parameters listed above in Table D.

Example 3

The importance of subjecting the mineral fiber insulating web to longitudinal and transverse compression is illustrated by the data given in Table E below:

Table E Conventional Insulating Insulating Boards of Mineral-Fiber Insulation Boards Made of Mineral Fibers of the Mineral Fibers of the Invention Not Exposed to Longitudinal / Transverse Compression Exposed to Longitudinal / Transverse Compression

thermal insulation board with a density of 30 kg / m @ 2 Compressive strength modulus of elasticity: 2 kPa 15 kPa - - - 7 kPa --- 125 kPa --- 9 kPa --- 150 kPa roof- compressive strength 70 kPa --- 180 kPa --- 210 kPa pelnoizolač- modulus of elasticity: 600 kPa --- 3300 kPa --- 4000 kPa

density board

150 kg / m &lt; 2 &gt;.

The mineral fiber insulation boards of the present invention clearly demonstrate the increased compressive strength and modulus of elasticity compared to conventional thermal insulation boards. However, the mechanical strength of the mineral fiber insulating boards of the present invention is further increased by subjecting the mineral fiber insulating web from which the insulating panels are made to longitudinal and transverse compression as discussed above in FIG. 2 and FIG. 8th

Claims (34)

A method for producing a mineral fiber insulating web, comprising the steps of: (a) producing a first non-woven mineral fiber web defined by a first longitudinal direction parallel to the mineral fiber web and a second transverse direction parallel to said first mineral fiber web, wherein the first mineral fiber web comprises mineral fibers disposed generally in said second transverse direction; comprising a first curing binder, b) moving said first mineral fiber web in said first longitudinal direction of said first mineral fiber web, c) bending the first mineral fiber web parallel to the first longitudinal direction and perpendicular to the second transverse direction to obtain a second non-woven mineral fiber web, wherein the second mineral fiber web comprises a central body and opposing surface layers which coat the central layers a body, wherein the central body comprises mineral fibers disposed generally perpendicular to the first longitudinal direction and the second transverse direction, and surface layers comprising mineral fibers disposed generally in the second transverse direction, d) movement of the second mineral fiber web in the first longitudinal direction, (e) producing a third non-woven mineral fiber web as defined in a third direction parallel to the third mineral fiber web, wherein the third mineral fiber web comprises mineral fibers disposed generally - 40 in a third direction and comprising a second curable binder agent, wherein the third mineral fiber web is a mineral fiber web of high compactness compared to the second mineral fiber web, f) joining a third mineral fiber web with a second mineral fiber web in the face contact thereto to form a fourth composite mineral fiber web; and g) curing the first and second curable binder agents such that the mineral fibers of the fourth composite material are bonded to each other, thereby forming an insulating web of mineral fibers. The method of claim 1, wherein said third non-woven mineral fiber web is produced by separating a surface segment of the layer of said first mineral fiber web and compacting the surface segment of the layer for producing the third mineral fiber web. The method of claim 2, wherein said compacting of the surface segment of the layer comprises steps of folding the surface segment of the layer to obtain a third mineral fiber web comprising mineral fibers positioned generally transverse to the longitudinal direction of the third mineral fiber web. The method of claim 1, wherein said third non-woven mineral fiber web is produced by separating one of said surface layers of said second mineral fiber web from its central body and compacting said one of said surface fibers. - 41 layers for producing said third mineral fiber web. A method according to any one of claims 1 to 4, characterized in that it comprises a further step similar to step e) for producing a fifth non-woven mineral fiber web similar to a third mineral fiber web and a bonding step in step f) of said fifth nonwoven material. and thereby laminating said second mineral fiber web between said third and fifth mineral fiber webs in said fourth mineral fiber web. Method according to any one of claims 1 to 5, characterized in that said folding in step c) comprises folding the first mineral fiber web so as to produce continuous undulations extending in said first longitudinal direction of said first mineral fiber web. The method of any one of claims 1 to 6, wherein said third direction is perpendicular to said first longitudinal direction. A method according to any one of claims 1 to 6, wherein said third direction coincides with said first longitudinal direction. The method of any one of claims 1 to 8, comprising the initial step of producing a first mineral fiber web from a base nonwoven mineral fiber web by placing said mineral fiber web. - 42 new fibers into overlapping layers. The method of claim 9, wherein said base, nonwoven mineral fiber web is disposed generally overlapping said second transverse direction. The method of any one of claims 1 to 10, further comprising the step of height compressing said first non-woven mineral fiber web produced in step a). The method of any one of claims 1 to 11, further comprising a step of longitudinally compressing said first non-woven mineral fiber web produced in step a) and further or alternatively a further step of longitudinally compressing said nonwoven mineral fiber web produced in step a). c). Method according to any one of claims 1 to 12, characterized in that it comprises a further step of transversely compressing said second non-woven mineral fiber web produced in step c). The method of any one of claims 1 to 13, comprising the further step of compressing said fourth composite mineral fiber web before introducing said fourth composite mineral fiber web into said curing oven. ru -5r The method of any one of claims 1 to 14, further comprising the step of applying the film to the surface or both surfaces of said first non-woven mineral fiber web and / or applying the film to the surface or both surfaces of said mineral fiber web. a second non-woven mineral fiber web. The method of any one of claims 1 to 15, further comprising the step of cutting said fourth composite mineral fiber web into plate-like segments. 17. An apparatus for producing a mineral fiber insulating web comprising (a) first means for producing a first non-woven mineral fiber web defining a first longitudinal direction parallel to the mineral fiber web and a second transverse direction parallel to the first mineral fiber web, wherein the first mineral fiber web is made to contain mineral fibers positioned generally in a second transverse direction and comprises a first curable agent, b) second means for moving the first mineral fiber web in the first longitudinal direction of the first mineral fiber web; c) third means for folding the first mineral fiber web parallel to the first longitudinal direction and perpendicular to the second transverse direction to form a second non-woven mineral fiber web comprising a central body and opposing surface layers coating the central body, wherein the central body contains mineral - 44 fibers placed generally perpendicular to the first longitudinal direction and the second transverse direction and the surface layers containing the mineral fibers placed generally in the second transverse direction, d) fourth means for moving the second mineral fiber web in the first longitudinal direction; (e) a fifth means for producing a third non-woven mineral fiber web defining a third direction parallel to the third mineral fiber web, wherein the third mineral fiber web is manufactured to comprise mineral fibers positioned generally in a third direction and comprising a second curable binder; the third mineral fiber web is a mineral fiber web of greater compactness compared to the second mineral fiber web, (f) sixth means for joining the third mineral fiber web to the second mineral fiber web in their face contact to produce a fourth composite mineral fiber web; and g) seventh means for curing the first and second curable binder agents by binding the mineral fibers of the fourth composite mineral fiber web to each other to form an insulating mineral fiber web. 18. The apparatus of claim 17, wherein said fifth means is adapted to produce a third non-woven mineral fiber web by separating a surface layer segment of said first mineral fiber web and compacting said surface segment segment for producing said third mineral fiber web. . 19. The apparatus of claim 18, wherein said fifth means is adapted to compact said surface layer segment by folding said surface layer segment to form a third mineral fiber web comprising mineral fibers positioned predominantly transverse to the longitudinal direction of said surface layer. a third mineral fiber web. 20. The apparatus of claim 17, wherein said fifth means is adapted to produce a third non-woven mineral fiber web by separating one of said surface layers of said second mineral fiber web from its central body and compacting said one of said surface layers in a forming said third mineral fiber web. The apparatus of any one of claims 17 to 20, further comprising eight means similar to said fifth means for making a fifth nonwoven mineral fiber web similar to said third mineral fiber web and a ninth means for attaching said fifth mineral fiber web. said second mineral fiber web in their face contact, and thereby laminating said second mineral fiber web between said third and fifth mineral fiber webs in said fourth mineral fiber web. Apparatus according to any one of claims 17 to 20, characterized in that it is adapted to fold said first mineral fiber web so as to form a continuous ripple extending in said first longitudinal direction of said first mineral fiber web. The device of any one of claims 17 to 22, wherein said third direction is perpendicular to said first longitudinal direction. The device of any one of claims 17 to 22, wherein said third direction coincides with said first longitudinal direction. Apparatus according to any one of claims 17 to 24, wherein said first means is adapted to produce said first mineral fiber web from a base nonwoven mineral fiber web by placing said mineral fiber base web in overlapping layers. 26. The apparatus of claim 25, wherein said first means is adapted to accommodate said base, nonwoven mineral fiber web generally overlapping in said second transverse direction. The apparatus of any one of claims 17 to 26, further comprising tenth means for height compressing said first non-woven mineral fiber web produced by said first means. The apparatus of any one of claims 17 to 27, further comprising eleven means for longitudinally compressing said first nonwoven mineral fiber web produced by said first means and further or alternatively twelve means. 47 for longitudinally compressing said second non-woven mineral fiber web produced by said third means. Apparatus according to any one of claims 17 to 28, further comprising thirteenth means for transversally compressing said second non-woven mineral fiber web produced by said third means. The apparatus of any one of claims 17 to 29, further comprising fourteenth means for compressing said fourth composite mineral fiber web prior to introduction, by said seven means, of said fourth composite mineral fiber web into said curing oven. The apparatus according to any one of claims 17 to 30, further comprising fifteen means for applying the film to the surface or both surfaces of said first non-woven mineral fiber web and / or applying the film to the surface or both surfaces of said first nonwoven mineral fiber web. a second non-woven mineral fiber web. The apparatus of any one of claims 17 to 31, further comprising sixteenth means for cutting said cured fourth composite mineral fiber web into plate segments. Τ \) 33. A mineral fiber insulating board defining a longitudinal direction and comprising: a central body comprising mineral fibers, a surface layer comprising mineral fibers, the central body and the surface layer interconnected in face contact, said mineral fibers of the central body located generally perpendicular to the longitudinal direction and perpendicular to the surface layer, said mineral fibers of the surface layer being positioned generally parallel to the longitudinal direction, said surface layer with the central body and being more compact compared to said mineral fibers of said central body and said mineral fibers of said The surface layers are joined together into an integral structure only by curing the binders in a single curing process and initially present in the uncured, non-woven mineral fiber webs of which the central body and the surface layer are BANE. 34. The mineral fiber insulating board of claim 33, comprising opposing surface layers of the same structure laminating the central body into said integral structure. n) A mineral fiber insulating board according to claims 33 to 35 34, characterized in that it is produced by a method according to any one of claims 1 to 16 and / or by means of a device according to any one of claims 17 to 32. )