EP1364083B1 - Process for producing layers from rock fibers and similar insulating fibrous materials - Google Patents

Process for producing layers from rock fibers and similar insulating fibrous materials Download PDF

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Publication number
EP1364083B1
EP1364083B1 EP02734898A EP02734898A EP1364083B1 EP 1364083 B1 EP1364083 B1 EP 1364083B1 EP 02734898 A EP02734898 A EP 02734898A EP 02734898 A EP02734898 A EP 02734898A EP 1364083 B1 EP1364083 B1 EP 1364083B1
Authority
EP
European Patent Office
Prior art keywords
conveyor
fibers
layer
pair
depositing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02734898A
Other languages
German (de)
French (fr)
Other versions
EP1364083A2 (en
Inventor
Franc Bradesko
Janez Bogataj
Janez Kosir
Bojan Mihovec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Termo Dd Industrija Termicnih Izolacij Skofja Loka
Original Assignee
Termo Dd Industrija Termicnih Izolacij Skofja Loka
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.)
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Publication date
Application filed by Termo Dd Industrija Termicnih Izolacij Skofja Loka filed Critical Termo Dd Industrija Termicnih Izolacij Skofja Loka
Publication of EP1364083A2 publication Critical patent/EP1364083A2/en
Application granted granted Critical
Publication of EP1364083B1 publication Critical patent/EP1364083B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-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
    • D04H1/74—Non-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 orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/42—Non-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
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/42—Non-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
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece

Definitions

  • the invention relates to a process for producing layers from rock fibers and similar insulating fibrous materials.
  • the process of the invention is used in the manufacture of insulating plates and felt layers from rock fibers and similar insulating materials.
  • WO99/51535 discloses a process for producing layers from fibers in which a layer of fibers is carried by a conveyor into a nip formed by a first pair of vertical oscillating belts.
  • the layer is deposited by the oscillating belts in a zig-zag manner onto a feeding conveyor, the first pair of vertical oscillating belts oscillating transversely to the feeding direction of the feeding conveyor.
  • the width of the layer is more or less the same as the depositing span of the layer.
  • the object of the invention is to provide a process by which layers from rock fibers and similar insulating materials with uniform density, microdensity and hardness can be produced.
  • This manufacturing process yields a layer with uniform microdensities and a product with considerably improved physical and mechanical properties.
  • the rock or other similar fibers which are formed and blown off the rotor are deposited in the form of a layer onto the steel conveyor 1 of the collection chamber.
  • the conveyor 1 must operate at a very high speed. From there, the layer passes to the receiving conveyor 2 which carries the fibers to a pair of vertical oscillating belts 3.
  • the pair of vertical oscillating belts 3 oscillate transversally to the advancement direction of the layer.
  • the layer is deposited on the feeding conveyor 4 which conveys it further to another pair of vertical oscillating belts 5.
  • the oscillating belts. 5 deposit the layer onto the deposit conveyor 6.
  • the layer, obtained by the deposition of the preceding layers is formed in the hardening chamber.
  • the velocities of the respective belts and of the collection chamber may be adjusted in order to obtain a layer which is best suited for a specific target product.
  • Figure 1 represents an embodiment of the invention, showing the manufacturing process and the apparatus for depositing two transversal layers.
  • apparatuses with two, three, or four transversal depositing devices, arranged in a cascade, are used.
  • the apparatus as such enables any given stage of transversal deposition to be selectively enabled, depending on the technological requirements of the specific target product.
  • the layer of fibers entering the hardening chamber consists of two, three, or more transversally deposited layers, which are laid at an angle of 90° relative to each other.
  • the width of the layer is several times greater than or equal to the depositing span of the layer itself.
  • the apparatus of the invention is constructed in such a manner as to permit all, or several, or only one of the stages of transversal deposition to be employed at a time.
  • the oscillating belts allow for sufficiently high depositing speeds at the various stages.
  • the collection chamber conveyor 1 is designed and constructed specifically for the required high speeds (up to 400 m/min).
  • the conveyor is shown in Fig. 2.
  • a Gall chain with specially shaped lamellae 11 and with a step smaller than 100 mm is supported by supporting wheels 21 which are coated with an elastic, wear-resisting material.
  • the lamella 31 is fixed to the chain. Only one part thereof is shown in Fig. 2; the actual assembly obviously comprises two Gall chains, one on each side, the straight lamellae 11 being fixed on said Gall chains.
  • the apparatus for producing layers from rock fibers and similar insulating materials consists of a conveyor 1 of the collection chamber, a receiving conveyor 2, at least two pairs of vertical oscillating belts 3, 5, at least one feeding conveyor 4, and at least one deposit conveyor 6.
  • the two pairs of vertical oscillating belts 3, 5 oscillate with a controlled preset amplitude.
  • the receiving conveyor 2 and the deposit conveyors 6 are positioned perpendicularly to the feeding conveyors 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Inorganic Fibers (AREA)
  • Laminated Bodies (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The apparatus for producing layers from rock fibers and similar insulating materials consists of a conveyor (1) of the collection chamber, a receiving conveyor (2), at least two pairs of vertical oscillating belts (3, 5), at least one feeding conveyor 4, and at least one deposit conveyor 6. The fibers are transported by the conveyor (1) to the receiving conveyor (2), which then carries them into nip formed by the first pair of vertical oscillating belts (3), which in turn, deposit the fibers in a zigzag onto the first feeding conveyor (4), from where they pass between the second pair of vertical oscillating belts (5), which deposit them in a zigzag onto the first deposit conveyor (6), wherein the zigzag deposition may be repeated so that the layer of fibers entering the hardening chamber consists of two or more transversally deposited layers, laid at an angle of 90 DEG relative to each other. .

Description

  • The invention relates to a process for producing layers from rock fibers and similar insulating fibrous materials. The process of the invention is used in the manufacture of insulating plates and felt layers from rock fibers and similar insulating materials.
  • Several technological processes for producing layers of insulating plates and felts have been known in the art.
  • Initially, the basis of the manufacturing processes was the formation of the whole layer in the so-called collection chamber. This process, however, presented many disadvantages, such as:
    • a) uneven density transversally to the line,
    • b) uneven density along the thickness of the layer,
    • c) uneven density in the longitudinal direction of the line.
  • From here, the prior art moved towards the so-called inclined and drum collection chambers, followed by a cross laying device. With this layer-forming process many of the aforesaid disadvantages were avoided. However, problems still remain concerning the microdensities and the hardness properties of the products.
  • WO99/51535 discloses a process for producing layers from fibers in which a layer of fibers is carried by a conveyor into a nip formed by a first pair of vertical oscillating belts. The layer is deposited by the oscillating belts in a zig-zag manner onto a feeding conveyor, the first pair of vertical oscillating belts oscillating transversely to the feeding direction of the feeding conveyor. The width of the layer is more or less the same as the depositing span of the layer.
  • DE 195 27 416 A1, EP 0520 869 A1 and US 3 673 757 disclose methods for producing a multilayer nonwoven fiber fabric which is formed by two or more oscillating folding machines between which conveyers are arranged.
  • The object of the invention is to provide a process by which layers from rock fibers and similar insulating materials with uniform density, microdensity and hardness can be produced.
  • This object is obtained by a method comprising the features of claim 1.
  • In the research and development of new products with improved mechanical and physical properties we have developed a new technological manufacturing process, by means of which the fiber layer is intertwined several times - transversally at least twice - to form the final layer.
  • This manufacturing process yields a layer with uniform microdensities and a product with considerably improved physical and mechanical properties.
  • The present invention is described hereinafter with reference to an embodiment and two schematic drawings, wherein:
    • Fig. 1 is a projection view of an embodiment of the inventive apparatus, and
    • Fig. 2 is a side view of the drive of the collection chamber conveyor.
  • The rock or other similar fibers which are formed and blown off the rotor are deposited in the form of a layer onto the steel conveyor 1 of the collection chamber. The conveyor 1 must operate at a very high speed. From there, the layer passes to the receiving conveyor 2 which carries the fibers to a pair of vertical oscillating belts 3. The pair of vertical oscillating belts 3 oscillate transversally to the advancement direction of the layer. Thus, the layer is deposited on the feeding conveyor 4 which conveys it further to another pair of vertical oscillating belts 5. The oscillating belts. 5 deposit the layer onto the deposit conveyor 6. Thereupon, the layer, obtained by the deposition of the preceding layers, is formed in the hardening chamber. The velocities of the respective belts and of the collection chamber may be adjusted in order to obtain a layer which is best suited for a specific target product.
  • Figure 1 represents an embodiment of the invention, showing the manufacturing process and the apparatus for depositing two transversal layers. In the industrial production, apparatuses with two, three, or four transversal depositing devices, arranged in a cascade, are used. The apparatus as such enables any given stage of transversal deposition to be selectively enabled, depending on the technological requirements of the specific target product.
  • According to the invention, the layer of fibers entering the hardening chamber consists of two, three, or more transversally deposited layers, which are laid at an angle of 90° relative to each other. In the first depositing stage the width of the layer is several times greater than or equal to the depositing span of the layer itself. By adjusting the depositing span of the individual stages, the orientation of the fibers in the final layer may be regulated, regardless of the depositing span of the final stage. By appropriately selecting the depositing span of the respective stages, the direction of the fibers may be adjusted to suit a predetermined product.
  • The apparatus of the invention is constructed in such a manner as to permit all, or several, or only one of the stages of transversal deposition to be employed at a time. The oscillating belts allow for sufficiently high depositing speeds at the various stages.
  • The collection chamber conveyor 1 is designed and constructed specifically for the required high speeds (up to 400 m/min). The conveyor is shown in Fig. 2. A Gall chain with specially shaped lamellae 11 and with a step smaller than 100 mm is supported by supporting wheels 21 which are coated with an elastic, wear-resisting material. As a segment of the steel conveyor, the lamella 31 is fixed to the chain. Only one part thereof is shown in Fig. 2; the actual assembly obviously comprises two Gall chains, one on each side, the straight lamellae 11 being fixed on said Gall chains.
  • According to the invention, therefore, the apparatus for producing layers from rock fibers and similar insulating materials consists of a conveyor 1 of the collection chamber, a receiving conveyor 2, at least two pairs of vertical oscillating belts 3, 5, at least one feeding conveyor 4, and at least one deposit conveyor 6. The two pairs of vertical oscillating belts 3, 5 oscillate with a controlled preset amplitude. The receiving conveyor 2 and the deposit conveyors 6 are positioned perpendicularly to the feeding conveyors 4.
  • The process for producing layers from rock fibers and similar insulating materials is performed according to the features as defined in claim 1.

Claims (1)

  1. A method for producing layers from rock fibers and fibers of similar insulating materials formed and blown off by a rotor, which method comprises:
    - depositing the layer of fibers onto a first conveyor (1) of a collection chamber,
    - transporting the layer of fibers by the first conveyor (1) to a receiving conveyor (2),
    - carrying the layer of fibers by the receiving conveyer (2) into a nip formed by a first pair of vertical oscillating belts (3),
    - depositing the layer of fibers in a first depositing stage by the first pair of oscillating belts (3) in a zig-zag manner onto a feeding conveyor (4), wherein the first pair of vertical oscillating belts (3) oscillates transversely to the feeding direction of the feeding conveyor (4),
    - conveying the zig-zag layer of fibers by the feeding conveyer (4) to a second pair of vertical oscillating belts (5),
    - depositing the zig-zag layer of fibers by the second pair of vertical oscillating belts (5) in a zig-zag manner onto a deposit conveyor (6) to form a double layer, wherein the second pair of vertical oscillating belts (5) oscillates transversely to the feeding direction of the deposit conveyor (6),
    - transporting the formed web into a hardening chamber,
    - the first conveyor (1) of the collection chamber operates with a high speed up to 400 m/min,
    characterized in that
    - in the first depositing stage the width of the layer of fibers is several times greater than the depositing span of the layer and
    - the zig-zag deposition is repeated so that the web entering into the hardening chamber consists of more than two transversally deposited layers, laid at an angle of 90° relative to each other.
EP02734898A 2001-01-26 2002-01-21 Process for producing layers from rock fibers and similar insulating fibrous materials Expired - Lifetime EP1364083B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SI200100016A SI20812B (en) 2001-01-26 2001-01-26 Device and process for formation of layers of rock wool fibres and similar fibrous insulating materials
SI200100016 2001-01-26
PCT/SI2002/000002 WO2002059405A2 (en) 2001-01-26 2002-01-21 Apparatus and process for producing layers from rock fibers and similar insulating fibrous materials

Publications (2)

Publication Number Publication Date
EP1364083A2 EP1364083A2 (en) 2003-11-26
EP1364083B1 true EP1364083B1 (en) 2006-05-10

Family

ID=20432816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02734898A Expired - Lifetime EP1364083B1 (en) 2001-01-26 2002-01-21 Process for producing layers from rock fibers and similar insulating fibrous materials

Country Status (11)

Country Link
EP (1) EP1364083B1 (en)
AT (1) ATE325911T1 (en)
CZ (1) CZ20032290A3 (en)
DE (1) DE60211312T2 (en)
DK (1) DK1364083T3 (en)
ES (1) ES2263784T3 (en)
HR (1) HRP20030413B1 (en)
HU (1) HUP0500007A2 (en)
SI (1) SI20812B (en)
SK (1) SK286436B6 (en)
WO (1) WO2002059405A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2634378C2 (en) * 2012-10-04 2017-10-26 Сэн-Гобэн Изовер Plant and method of manufacturing thermo- and/or sound-insulating product

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2893400T3 (en) * 2015-03-09 2022-02-09 Nuova Cosmatex S R L Device for overlapping, crossing and transferring textile fibers, and method therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287980B (en) * 1964-04-17
US3673757A (en) * 1971-01-04 1972-07-04 Arnold L Willis Method of making pillows
RO81548B1 (en) * 1981-11-27 1983-04-30 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Constructiilor De Masini Device for conveying loads with alternative motion
FR2678289B1 (en) * 1991-06-28 1994-01-14 Asselin Ets PROCESS FOR MAKING A NON-WOVEN, NON-WOVEN OBTAINED IN PARTICULAR BY THIS PROCESS AND PLANT FOR THE MANUFACTURE OF THIS NON-WOVEN.
DE19527416C2 (en) * 1995-07-27 1998-06-04 Autefa Maschinenfab Method and device for forming a multi-layer fiber fleece
GB9604241D0 (en) * 1996-02-28 1996-05-01 Rockwool Int Production of a lapped product from a web, and apparatus for this
SI1086054T2 (en) * 1998-04-06 2010-08-31 Rockwool Int Man-made vitreous fibres batts and their production
DE69907817T2 (en) * 1998-07-07 2004-03-11 Mitsubishi Chemical Corp. Process for producing a composite film containing aluminum oxide fiber precursors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2634378C2 (en) * 2012-10-04 2017-10-26 Сэн-Гобэн Изовер Plant and method of manufacturing thermo- and/or sound-insulating product

Also Published As

Publication number Publication date
EP1364083A2 (en) 2003-11-26
DK1364083T3 (en) 2006-09-11
DE60211312T2 (en) 2006-09-14
CZ20032290A3 (en) 2004-01-14
HRP20030413B1 (en) 2008-12-31
ES2263784T3 (en) 2006-12-16
SK286436B6 (en) 2008-10-07
HUP0500007A2 (en) 2008-06-30
WO2002059405A2 (en) 2002-08-01
SK10732003A3 (en) 2004-02-03
HRP20030413A2 (en) 2005-04-30
SI20812A (en) 2002-08-31
WO2002059405A3 (en) 2002-12-27
SI20812B (en) 2009-10-31
ATE325911T1 (en) 2006-06-15
DE60211312D1 (en) 2006-06-14

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