WO1994003671A1 - Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede - Google Patents

Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede Download PDF

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Publication number
WO1994003671A1
WO1994003671A1 PCT/EP1993/001818 EP9301818W WO9403671A1 WO 1994003671 A1 WO1994003671 A1 WO 1994003671A1 EP 9301818 W EP9301818 W EP 9301818W WO 9403671 A1 WO9403671 A1 WO 9403671A1
Authority
WO
WIPO (PCT)
Prior art keywords
mineral wool
wool web
web
impact
blow bar
Prior art date
Application number
PCT/EP1993/001818
Other languages
German (de)
English (en)
Inventor
Hans Resch
Original Assignee
Deutsche Rockwool Mineralwoll-Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Rockwool Mineralwoll-Gmbh filed Critical Deutsche Rockwool Mineralwoll-Gmbh
Priority to DE59304834T priority Critical patent/DE59304834D1/de
Priority to SK136-95A priority patent/SK13695A3/sk
Priority to EP93915880A priority patent/EP0654100B1/fr
Priority to CZ95277A priority patent/CZ283012B6/cs
Publication of WO1994003671A1 publication Critical patent/WO1994003671A1/fr

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209Inorganic fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/655Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged

Definitions

  • the invention relates to a method for producing mineral wool panels with a compacted layer on the top and / or underside of the panel.
  • a method of the aforementioned type and an apparatus for carrying out the method are known from Canadian Patent 1,057,183, according to which a mineral wool product can be produced which has a compressed and, if necessary, additionally on the underside so that has hardness layer.
  • the procedure is that a thick mineral wool primary fleece is divided into partial webs by horizontal cuts.
  • the upper cut-up partial web is then lifted upwards from the remaining fleece and pressed together between a pair of rollers and thus compacted.
  • the compacted partial web is then fed back to the remaining non-treated nonwoven.
  • the compressed partial wool web fed to the residual wool web is non-uniform or irregular and leads to depressions and elevations in the end product, as well as wrinkling in the product surface.
  • the highly compressed partial wool web has a different bulk density, i. H. the bulk density varies both across the width and the length of the mineral wool web.
  • the invention is based on the object of creating a method by means of which compacted surface layers can be formed in a simple manner, which on the other hand maintain a secure, reliable connection with the remaining part of the mineral wool web.
  • a mineral wool web is continuously conveyed with an uncured binder and is subjected to mechanical impact treatment with a high impact frequency at at least one point in the conveying path, in that the mineral wool web is subsequently fed to a hardening furnace for curing the binder and then is divided into plates.
  • the impact treatment with a high impact frequency has the advantage that only a pulse-like application of force to a partial area of the mineral wool web, that is to a certain preselected depth, takes place, but that due to the inertia and the elasticity of the mineral wool material, the transmission of the force application into the lower layer is prevented.
  • the layer directly exposed to the impact treatment with a high impact frequency is compressed, while the remaining part of the mineral wool web remains unchanged.
  • Another advantage is the even compaction of the layer to be compacted. There is a high tear resistance between the respective compacted and the undensified layer. The outer surface of the compacted layer is smooth and even, giving a good appearance. There is no loss of material or waste. Since the binding agent within the mineral wool web is not hardened, the impact treatment with a high impact frequency does not destroy or even change the fiber structure or the fibers themselves; rather, only a permanent compression of the layer in question is achieved.
  • the beat frequency is advantageously chosen between approximately 500 / min to 6000 / min.
  • any mineral wool product that occurs in practice can be produced with a compact cover layer on the top and / or bottom.
  • a mineral wool with a bulk density or a density of about 15 to 200 kg / m 3 is advantageously chosen.
  • the mineral fibers within the mineral wool web advantageously run essentially parallel or at an acute angle to the large web surfaces. In this way, the impact treatment results in a compression that is gentle on the fibers.
  • Known lamellar mats, in which the fibers run essentially perpendicular to the large surfaces, are less suitable for the method according to the invention because in this case the fibers would be deformed or even broken by the impact treatment and, under certain circumstances, excessive force input into the would not be compacted layer.
  • the conveying speed of the mineral wool web is advantageously selected from about 0.5 to 30 m / min and the stroke frequency is adapted to the conveying speed.
  • Variations result from changing the conveying speed of the mineral wool web.
  • the compression can be increased by a low conveying speed and the compression can be reduced by a higher conveying speed.
  • the invention also relates to a device for carrying out the method explained above, which is characterized in that a continuously driven conveying device for a mineral wool web containing an uncured binder is assigned a striking device which is designed in such a way that it and / or the underside of the mineral wool web carries out mechanical blows with a high frequency of blows, that a hardening furnace is arranged downstream of the blasting device, and that a plate cutting device is provided after the hardening furnace.
  • FIG. 1 shows a partial side view of a mineral wool web with a simplified impact device
  • FIG. 2 shows a perspective illustration of part of a blow bar
  • FIG. 3 shows a partial side view corresponding to FIG. 1 with conveyor rollers and another embodiment of a blow bar
  • FIG. 4 shows a side view of the blow bar according to FIG. 3 in an enlarged illustration
  • Figure 5 is a side view of another blow bar
  • FIG. 1 schematically shows an exemplary embodiment of a device according to the invention.
  • a mineral wool web 1 is continuously moved in the direction of arrow 12 by means of a conveyor device (not shown).
  • a conveyor device usually consists of endless conveyor belts on which the mineral wool web rests or, according to FIG. 3, of conveyor rollers 10, 11.
  • the mineral wool web is usually subjected to length-height compression. Conveyor belts or conveyor rollers on the underside and on the top of the mineral wool web serve this purpose. However, this pre-compression is carried out so that it is uniform over the entire cross-section of the mineral wool web.
  • the mineral wool web is now subjected to a high-impact treatment
  • a simplified depicted impact device 2 is used, which is moved up and down in the direction of arrow 7 with a high impact frequency, the impact bar 3 penetrating into the surface layer of the mineral wool web 1 by a predetermined amount.
  • the striking device 2 advantageously has a motor drive with an eccentric and lifting rod or a hydraulic or pneumatic drive. Such drives are known per se and are therefore not shown individually in the drawing.
  • the impact device 2 with the impact bar 3 is adjustable in height so that mineral wool webs of any thickness can be treated.
  • the stroke height of the striking device 2 can be adjusted or regulated in accordance with the thickness of the layer to be compacted.
  • the drive is designed in such a way that the stroke frequency can be set or regulated between approximately 500 / min to 6000 / min.
  • the striking device 2 is equipped with a striking strip 3 which penetrates into the surface layer of the mineral wool web.
  • the result is a densified top layer 9 with a smooth surface and an undensified bottom layer 8.
  • the blow bar 3 is preferably arranged transversely to the longitudinal direction of the mineral wool web 1 and movable in a plane perpendicular to the large surfaces of the mineral wool web 1.
  • FIG. 2 shows a perspective view of an end part of the blow bar 3, in the simplest possible construction.
  • the length 6 of the blow bar 3 corresponds to the width of the mineral wool web.
  • the blow bar has a rectangular cross section and a width of approximately 1 to 50 mm and a height 5 of approximately 10 to 500 mm.
  • the impact device 2 is shown above the mineral wool web 1.
  • the striking device can also be arranged under the underside of the mineral wool web, or two striking devices can be provided in mirror image to one another both on the top side and on the underside. In in the latter case, an end product is obtained which densifies on both large surfaces and has correspondingly hard layers in the end result.
  • FIG. 3 shows the use of such a differently designed blow bar 13. All other components of the exemplary embodiment according to FIG. 3 essentially correspond to the exemplary embodiment according to FIG. 1, so that the same reference numerals have been used.
  • the blow bar 13 has a trapezoidal cross-section with a surface 14 that rises obliquely upward in the direction opposite to the conveying direction 12 of the mineral wool web 1.
  • the rising surface 14 of the blow bar 13 is designed, in particular in the upper region, in a step-like manner according to reference number 15.
  • the lower region 16 of the rising surface 14 is expediently smooth, as is the lower surface 17, so that during the Schiag treatment Any unevenness that may arise on the outer surface of the compacted layer can be compensated for.
  • the embodiment of the blow bar 18 according to FIG. 5 has a circular sector-like cross section with a surface 19 that rises obliquely upwards, this inclined surface 19 being provided with a corrugation 20 or with ribs or teeth, particularly in the upper region.
  • the lower part 21 of the inclined surface 19 is expediently designed to have a smooth surface again.
  • Figure 6 shows a blow bar 22 with a lower curved smooth surface. Such a blow bar is particularly suitable when a thin, very highly compressed layer is to be formed. It applies to all blow bars 3, 13, 18 and 22 that these advantageously consist of hardened metal or hard metal.
  • an end product which consists of an uncompressed or, if necessary, uniformly pre-compacted layer, a further layer moderately compacted by impact treatment and an outer, very strongly compacted and corresponding hard layer, generally speaking, that is to say an end product with several differently compacted layers Layers.
  • several correspondingly set impact devices can be arranged one behind the other, that is, first an impact device which compresses a thicker outer layer and then a further impact device which then again a part of this compressed layer in the area of the surface condensed.
  • a further advantageous embodiment of the device according to the invention consists in that the impact device 2 is inserted in the area of a production plant between a pre-compression device in which the mineral wool web 1 is compressed uniformly over its entire cross-section and the hardening furnace (not shown in the drawing). and is designed to be extendable and arranged. On in this way one can drive to different production lines with one and the same striking device and optionally use them there.
  • the striking device can also be designed such that it can be adjusted in height in such a way that it can be put out of operation and does not hinder normal production operation if mineral wool webs or plates previously customary are to be produced on a production line with a uniform compression over the entire cross-section.
  • end products that can be produced by the invention are preferably used in buildings, specifically in the roof, wall or floor area, where a particular punctual strength of the surface or bottom surface is important.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Laminated Bodies (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

La présente invention propose un procédé pour la fabrication de panneaux de laine minérale avec couches compactées sur les faces supérieure et inférieure du panneau, caractérisé en ce qu'une bande de laine minérale avec un liant non durci avance en continu et qu'elle est exposée en un point au moins de son parcours à un traitement par impact mécanique haute fréquence puis amenée à un four pour le durcissement du liant, et ensuite divisée en panneaux.
PCT/EP1993/001818 1992-08-05 1993-07-12 Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede WO1994003671A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59304834T DE59304834D1 (de) 1992-08-05 1993-07-12 Verfahren zum herstellen von mineralwolleplatten und vorrichtung zur durchführung des verfahrens
SK136-95A SK13695A3 (en) 1992-08-05 1993-07-12 Method of producing mineral-wool slabs and a device for carrying out the method
EP93915880A EP0654100B1 (fr) 1992-08-05 1993-07-12 Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede
CZ95277A CZ283012B6 (cs) 1992-08-05 1993-07-12 Způsob výroby desek z minerální vlny a zařízení k provádění tohoto způsobu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225840A DE4225840C1 (de) 1992-08-05 1992-08-05 Verfahren zum Herstellen von Mineralwolleplatten und Vorrichtung zur Durchführung des Verfahrens
DEP4225840.5 1992-08-05

Publications (1)

Publication Number Publication Date
WO1994003671A1 true WO1994003671A1 (fr) 1994-02-17

Family

ID=6464869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/001818 WO1994003671A1 (fr) 1992-08-05 1993-07-12 Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede

Country Status (7)

Country Link
EP (1) EP0654100B1 (fr)
AT (1) ATE146534T1 (fr)
CZ (1) CZ283012B6 (fr)
DE (2) DE4225840C1 (fr)
HU (1) HUT69746A (fr)
SK (1) SK13695A3 (fr)
WO (1) WO1994003671A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9717484D0 (en) 1997-08-18 1997-10-22 Rockwool Int Roof and wall cladding
FR2814474B1 (fr) * 2000-09-27 2002-11-29 Saint Gobain Isover Procede et ensemble de fabrication de feutres formes de fibres minerales
EP1386042A1 (fr) * 2001-05-08 2004-02-04 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Panneau de matiere isolante con u pour isoler des murs exterieurs constitues de toles profilees
PL209777B1 (pl) * 2001-11-14 2011-10-31 Rockwool Int Element izolacyjny stanowiący płat z włókna mineralnego oraz jego zastosowanie
CN115023335A (zh) * 2020-01-17 2022-09-06 洛科威有限公司 固化炉及控制固化炉的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774393A (en) * 1928-12-28 1930-08-26 Miller William Lott Machine for making mineral or rock wool bat
CA1057183A (fr) * 1976-05-06 1979-06-26 Malcolm J. Stagg Methode et appareil destines a fabriquer un produit fibreux de plusieurs densites
WO1988000265A1 (fr) * 1986-06-30 1988-01-14 Rockwool International A/S Procede pour la production en continu de plaques de laine de roche

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT199048B (de) * 1957-05-02 1958-08-11 Fehrer Ernst Vorichtung zum Vergleichmäßigen eines auf einem Förderband kontinuierlich weiterbewegten Haar- oder Faservlieses
US4109353A (en) * 1974-12-27 1978-08-29 Kimberly-Clark Corporation Apparatus for forming nonwoven web
DE2940425A1 (de) * 1979-10-05 1981-04-16 Erste Deutsche Basaltwolle Kg A. Messler, 8712 Volkach Matte aus mineralfasern
AT387798B (de) * 1987-12-11 1989-03-10 Kuehnsdorfer Gmbh Verfahren zur herstellung einer lagerfaehigen, handhabbaren fasermatte und nach dem verfahren hergestellte fasermatte
DE3832773C2 (de) * 1988-09-27 1996-08-22 Heraklith Holding Ag Verfahren und Vorrichtung zur Herstellung von Mineralfaserplatten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774393A (en) * 1928-12-28 1930-08-26 Miller William Lott Machine for making mineral or rock wool bat
CA1057183A (fr) * 1976-05-06 1979-06-26 Malcolm J. Stagg Methode et appareil destines a fabriquer un produit fibreux de plusieurs densites
WO1988000265A1 (fr) * 1986-06-30 1988-01-14 Rockwool International A/S Procede pour la production en continu de plaques de laine de roche

Also Published As

Publication number Publication date
DE4225840C1 (de) 1994-04-28
ATE146534T1 (de) 1997-01-15
HUT69746A (en) 1995-09-28
CZ27795A3 (en) 1995-05-17
EP0654100B1 (fr) 1996-12-18
HU9500344D0 (en) 1995-03-28
EP0654100A1 (fr) 1995-05-24
CZ283012B6 (cs) 1997-12-17
DE59304834D1 (de) 1997-01-30
SK13695A3 (en) 1995-09-13

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