EP1888829B1 - Collecting chamber and method in the manufacture of mineral fibres - Google Patents

Collecting chamber and method in the manufacture of mineral fibres Download PDF

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Publication number
EP1888829B1
EP1888829B1 EP06755393.3A EP06755393A EP1888829B1 EP 1888829 B1 EP1888829 B1 EP 1888829B1 EP 06755393 A EP06755393 A EP 06755393A EP 1888829 B1 EP1888829 B1 EP 1888829B1
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EP
European Patent Office
Prior art keywords
collecting chamber
area
fiberising
collecting
waist
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.)
Active
Application number
EP06755393.3A
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German (de)
English (en)
French (fr)
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EP1888829A2 (en
Inventor
Erik ÅSTRAND
Bjarne Walli
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.)
Paroc Hold Oy AB
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Paroc Oy AB
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Publication date
Application filed by Paroc Oy AB filed Critical Paroc Oy AB
Priority to PL06755393T priority Critical patent/PL1888829T3/pl
Priority to SI200631594T priority patent/SI1888829T1/sl
Publication of EP1888829A2 publication Critical patent/EP1888829A2/en
Application granted granted Critical
Publication of EP1888829B1 publication Critical patent/EP1888829B1/en
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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
    • D04H1/40—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
    • 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
    • D04H1/72—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 randomly arranged
    • D04H1/732—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 randomly arranged by fluid current, e.g. air-lay
    • 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
    • D04H1/72—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 randomly arranged
    • D04H1/736—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 randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the present invention relates to a collecting chamber and a method in the manufacture of mineral fibres according to the preambles of the claims below.
  • Mineral wool such as stone wool
  • the mineral melt obtained is discharged from the melting furnace in the form of a melt jet to a fiberising apparatus, where the melt is formed into mineral fibres.
  • a fiberising apparatus of the spinning machine type which comprises a series of rotating fiberising rotors or spinning rotors, typically 3 to 4 rotors.
  • the mineral melt from the melting furnace is directed toward the mantle surface of the first rotor where it gets hold of the mantle surface of the rotor to a certain extent before it is thrown out as a cascade of drops against the mantle surface of the adjacent second rotor in the series.
  • a part of the mineral melt gets then sufficient hold of the mantle surface of the second rotor in order to be formed into fibres due to the effect of the centrifugal force. Another part of the mineral melt is thrown further against the mantle surface of the third rotor. In this way the mineral melt is "transported” as a jet of mineral melt drops or a drop cascade, successively from one rotor to the subsequent one through the whole fiberising apparatus, while a part of the mineral melt is formed into mineral fibres.
  • a binder may be applied on the formed mineral fibres, either during the fibre formation or after it.
  • the mineral fibres formed at the fiberising rotors are transported away from the fiberising apparatus by means of blowing off.
  • the blowing off of mineral fibres can be arranged by so-called primary blow-off means, which have been placed at the peripheries of the rotors or with secondary blow-off means, which have been arranged at a distance from the fiberising apparatus.
  • the mineral fibres are transported from the fiberising apparatus through a collecting chamber towards a collecting member, which is arranged in front of the fiberising apparatus.
  • the collecting member can be, for example, a belt conveyor or a rotating drum.
  • the mineral fibres are usually collected as a thin fibre web, a so-called primary fibre web or a primary web.
  • the primary fibre web is normally collected by a travelling perforated surface forming the collecting surface of the collecting member.
  • the velocity at which the collecting surface proceeds defines the surface weight of the collected primary fibre web if the fibre mass flow from the fiberising apparatus is constant. The higher the velocity of the collecting surface is, the thinner the collected primary web becomes and the lower its surface weight is.
  • the aim is to collect as thin primary mineral fibre webs as possible. Snarls and tufts of mineral fibre are undesirable in the collected fibre web, as they lower the quality of the end product. It is naturally also an aim to avoid holes in the collected primary mineral fibre web.
  • the collecting velocity of the collecting member must be raised in the same extent, so that the surface weight of the collected primary web is kept constant and that the surface weight of the web does not become too high.
  • the velocity of the collecting member is, however, restricted by other apparatuses later on in the process and can therefore not be raised at will.
  • the post-processing of both a thin as well as a fast primary mineral fibre web has proven to be complicated among other things because the thin web breaks easily in transport and because of possible overlapping.
  • the structure of the collected primary web is greatly influenced by the conditions in the collecting chamber during the travel of the mineral fibres from the fiberising apparatus to the collecting member. If the flow conditions in the collecting chamber are turbulent and back-eddies exist, the collected primary web easily becomes nodular and inhomogeneous. The fiberising and collecting processes also become difficult to control when the produced amount of fibre increases.
  • the properties of mineral wool are influenced by the properties of the individual mineral fibres, in other words by the thickness, length, as well as space orientation of individual fibres in the mineral wool. These properties are, among other things, influenced by the conditions that prevail when the mineral fibres are transported by the gas flows through the collecting chamber to the collecting member.
  • the gas flows are formed by blowing off by the blow-off means at the fiberising apparatus as well as through suction through the surface of the collecting member. Back-eddies and gas vortexes formed in the collecting chamber are particularly problematic, among other things, as the rotating fiberising rotors cause some of the air adjacent to the rotors to rotate with it.
  • An increased production of mineral fibres creates a need to increase the amount of air required for transporting mineral fibres from the fiberising apparatus to the collecting chamber.
  • the increased amount of air in the collecting chamber increases the risk of problematic gas vortexes around the fibre cloud that is transported from the fiberising apparatus towards the collecting member.
  • the suction has to be increased as an increased amount of gas has to be removed from the collecting chamber, usually through the surface of the collecting member.
  • collecting chambers have been formed as big “boxes", the first end of which is placed in the fiberising apparatus and the second end in the collecting member.
  • the cross section of the first end of the collecting chamber is traditionally arranged to be smaller than the cross section of the second end.
  • WO87/0663 describes an apparatus and a method for making a mineral wool web using a collecting chamber having a neck.
  • the object of this invention is to provide a method and an apparatus for the manufacture of mineral wool fibres, where the above-mentioned disadvantages are minimised.
  • the object is thus to achieve a collecting chamber having a structure that facilitates a turbulence free fibre transport through the collecting chamber towards the collecting member.
  • Another object of the present invention is to achieve a method by means of which the formation of back-eddies can be minimised or prevented.
  • a typical collecting chamber comprises a first end towards a fiberising apparatus which produces mineral fibres from mineral melt, a second end towards a collecting member to which mineral fibres are transported by gas flows from the fiberising apparatus, between which first and second ends a ceiling, and a first and a second side wall are arranged.
  • the cross section of the first end of the collecting chamber has a first area
  • the cross section of the second end has a second area, which cross sections are defined by the ceiling, the first and second side walls as well as the cross sectional plane that horizontally touches the lowest rotor of the fiberising apparatus at its lower edge.
  • the collecting chamber comprises a waist arranged between the first and the second end, the length of which waist is at least 100 mm and the cross section of which having a third area which is at the most 10 % larger than the first area and smaller than the second area.
  • a typical method according to the invention typically comprises the following steps
  • the collecting chamber between the fiberising apparatus and collecting member, so that the collecting chamber has a waist
  • the back-eddies formed between the collecting member and fiberising apparatus can considerably be reduced.
  • the waist forms a mechanical restraint reducing the formation of back-eddies between the collecting member and the fiberising apparatus.
  • the conditions for fibre transport from the fiberising apparatus are in this manner made more stabile and homogenous than before as the flow conditions at the fiberising end of the collecting chamber are made more laminar and less turbulent.
  • the collecting chamber is usually arranged approximately 300 - 700 mm, preferably 350 - 450 mm in front of the fiberising apparatus, as measured from the nearest edge of the fiberising rotor.
  • the first area i.e. the cross section area of that end of the collecting chamber facing the fiberising apparatus is usually measured at this point.
  • the distance between the first end of the collecting chamber and the upper fiberising rotor of the fiberising apparatus is arranged to be shorter than the distance between the first end of the collecting chamber and the lower fiberising rotor of the fiberising apparatus, i.e. the fiberising apparatus is located at an angle in relation to the first end of the collecting chamber.
  • a waist is arranged in the collecting chamber between the first and second end thereof, the length of which waist is at least 100 mm and the cross section of which has a third area which is at the most 10 % larger than the first area and smaller than the second area.
  • the waist can be arranged as a channel or a passage located in that end of the collecting chamber that opens up towards the fiberising apparatus, i.e. in the fiberising end of the collecting chamber.
  • the waist forms thus a fibre controlling part of the collecting chamber.
  • the part of the collecting chamber that is located between the waist and the second end can be called the fibre forming part of the collecting chamber.
  • the present invention is advantageously combined with a fiberising apparatus of the cascade type described above.
  • a fiberising apparatus usually comprises from three to four rotating fiberising rotors and the fibres are blown off from the rotating rotors in a horizontal direction towards the collecting member.
  • the waist has a certain length, which is at least 100 mm, and its cross section has a certain area, which is always smaller than the second area. It can be thought that the waist forms a pipe-like duct, such as an air channel, through which mineral fibres and gas flows flow from the fiberising apparatus towards the collecting member.
  • the upper part of the waist can be rounded, whereby it resembles a half of a pipe.
  • the cross sectional area of the waist can grow slowly towards the collecting member, the inclination of the ceiling of the waist and/or side walls is then usually less than 5°.
  • the inclination of the ceiling of the collecting chamber can become a great deal steeper at the point where the waist ends, in other words, the inclination of the ceiling is typically at least 20°.
  • the discontinuity point of the derivative exists at the point where the waist ends and the fibre forming part continues.
  • the cross section of the waist can be smaller than or as large as the first area.
  • the cross section of the waist can in other words also decrease towards the point where the waist ends and where it is united with the fibre forming part of the collecting chamber.
  • the reduction is usually relatively small, the inclination of the ceiling of the waist is usually less than 5°.
  • the cross section of the waist is kept constant over the entire length of the waist.
  • the length of the waist can vary within the range of approximately 150 mm to 1150 mm, typically 200 - 1100 mm, more typically 200 - 800 mm, preferably 150 - 600 mm. According to another embodiment the length of the waist varies within the range of 400 - 1000 mm, typically 500 - 1100 mm, more typically 500 - 800 mm, preferably 550 - 700 mm.
  • the waist may comprise an adjustment seam and an adjustment member for changing the length of the waist.
  • the adjustment member can, for example, be an overlapping seam and it can be operated manually or it can be automated.
  • the distance between the fiberising apparatus and the collecting member is usually 0.75 - 5.5 m, preferably 1.5 - 2.75 m.
  • the distance can also be between 1.5 - 5 m, typically 2.5 - 3.5 m.
  • the fibre forming part of the collecting chamber is usually streamlined and its ceiling can be formed in the second end arched down towards the collecting member.
  • the distance between the collecting member and the end of the ceiling of the fibre forming part i.e. that part of the ceiling which is located closest to the surface of the collecting member, can be arranged adjustable by means of a separate movable ceiling part, which is arranged in contact with the actual ceiling.
  • the distance between it and the collecting member is usually varied between 40 - 400 mm, typically between 100 - 300 mm.
  • the distance between the first and the second wall of the collecting chamber forms the inner width of the fibre forming part of the collecting chamber. This width is often equal to the collecting width of the collecting member.
  • the waist can be formed of two sides inclined towards each other and a ceiling.
  • the sides and the ceiling can be arched in order to make the waist more streamlined.
  • the arching of the sides and the ceiling follows advantageously the outer profile of the fiberising apparatus, i.e. the form of the cross section of the fiberising apparatus at the fiberising rotors. In this manner the amount of air sucked into the collecting chamber from the sides of the fiberising apparatus can be reduced. As this amount of air can be minimised there is no need to suck it out from the collecting chamber.
  • the total cross section area of the fiberising rotors of the fiberising apparatus is at least 10 %, preferably between 15 - 35 % of the cross section of the waist, i.e. of the third area, when the third area is defined by the first and second side walls, ceiling and cross sectional plane. If, for example, the fiberising rotor of the fiberising apparatus has a total cross sectional area of 0.33 m 2 the cross sectional area of the waist is 2.2 m 2 .
  • a shot separator can be connected to the fiberising end of the collecting chamber.
  • the shot separator can be furnished with a cavity in which a transport means, such as a screw, can be arranged. With the transport means collected shot can be removed from the collecting chamber.
  • the possible shot separator is placed in the space between the fiberising apparatus and the first end of the collecting chamber.
  • the shot separator can be connected to an air inlet channel, the cross section of which mainly follows the profile of the waist at the first end.
  • This air inlet channel extends typically 50 - 600 mm away from the first end of the collecting chamber measured from the fiberising rotors, from the edge which is located furthest away from the collecting chamber.
  • a connecting channel can further be connected, which channel is formed by the area under the fiberising apparatus itself.
  • the connecting channel and the collecting chamber are advantageously approximately of the same width, and the height of the connecting channel can vary between 0.5 - 1.0 times the inner width of the collecting chamber.
  • the connecting channel is advantageously arranged in such a manner that its ceiling forms the platform, upon which the fiberising apparatus is placed during production conditions. The air, which was sucked from the collecting chamber through the collecting apparatus, can be returned to the connecting channel after filtering and cooling.
  • a number of rolls can be additionally arranged in the collecting chamber.
  • a first threshold roller be arranged at the seam between the floor and the collecting member, as well as a ceiling roller at the seam between the fibre forming part of the collecting chamber and the collecting member.
  • the collecting member comprises two or more collecting surfaces, e.g. collecting drums, one or more rolls can be arranged between the collecting surfaces.
  • FIG 1 an embodiment of the collecting chamber according to the present invention is schematically shown.
  • a collecting chamber 1 is arranged between a fiberising apparatus 2 and a collecting member 3.
  • a shot separator 5 is connected to the collecting chamber 1 for collecting possible shot formed during the manufacture of mineral wool.
  • An air inlet channel 5' is connected to the shot separator 5.
  • a first end 1' of the collecting chamber 1 is located at a distance A in front of the fiberising apparatus 2.
  • the first end 1' of the collecting chamber 1 is visualised with a line 10 the cross section of which first end has a first area.
  • a line 11 defines a boundary level which horizontally touches the lowest rotor 2' of the fiberising apparatus 2 at its lower edge.
  • a second end 1" of the collecting chamber 1 is visualised with a line 12, the cross section of which second end has a second area.
  • Line 12 touches the collecting member 3 at a point which is located closest to the fiberising apparatus 2.
  • a waist 4 is arranged, the cross section of which has a third area. This third area is smaller than the area of the second end 1", and as large as or smaller than the area of the first end 1'.
  • the line 13 visualises the point where the waist 4 ends and the fibre forming part of the collecting chamber 1 begins.
  • a first threshold roller 7 is shown at the seam between a floor 8 and the collecting member 3.
  • a second threshold roller 7' is arranged at the seam between the fibre forming part 6 of the collecting chamber and the collecting member 3.
  • a connecting channel 8' is connected, the ceiling 8 of which forms the platform upon which a fiberising apparatus 2 is placed.
  • FIG 2A an embodiment of the collecting chamber according to the present invention is schematically shown.
  • a collecting chamber 21 is arranged between a fiberising apparatus 22 and a collecting member 23.
  • a shot separator 25 is arranged to the collecting chamber 21 .
  • a first end 21' of the colleting chamber 21 is located at a distance A in front of the fiberising apparatus 22.
  • the first end 21' of the collecting chamber is visualised with a line 20 the first cross section of which end has a first area
  • a second end 21" of the collecting chamber 21 is visualised with a line 21', the cross section of which end has a second area.
  • Line 20' touches the collecting member 23 at a point P which is located closest to the fiberising apparatus 22.
  • a waist 24 is arranged, the cross section of which has a third area. This third area is smaller than the area of the second end 21", and as large as or smaller than the area of the first end 21'.
  • the point where the waist 24 ends and the fibre forming part 26 of the collecting chamber 21 begins is visualised with the line 20".
  • the cross section of the waist 4 is kept constant over the entire length X of the waist 4.
  • FIG 2B another embodiment of the collecting chamber according to the present invention is schematically shown.
  • the numbering and parts shown in figure 2B correspond to those shown in figure 2A .
  • the cross section of the waist 24 is smaller than the area of the second end 21", and as large as or smaller than the area of the first end 21'.
  • the cross section of the waist 24 decreases towards the fibre forming part 26.
  • FIG 2C an embodiment of the collecting chamber according to the present invention is schematically shown.
  • the numbering and parts shown in figure 2B correspond to those shown in figures 2A and 2B .
  • the cross section of the waist 24 is smaller than the area of the second end 21", and as large as or smaller than the area of the first end 21'.
  • the cross section of the waist 24 grows towards the fibre forming part 26, in other words the ceiling 24' of the waist 24 shows an inclination and forms an angle ⁇ with an imaginary horizontal line.
  • FIG 3 an embodiment of the collecting chamber according to the present invention is schematically shown.
  • a collecting chamber 31 is arranged between a fiberising apparatus 32 and a collecting member 33, and between a first end 31' and second end 31" of the collecting chamber 31 a waist 34 is arranged, the cross section of which is essentially kept constant over the entire length of the waist.
  • a shot separator 35 is connected to the collecting chamber 31 .
  • a threshold roller 37 is arranged at the seam between a floor 38 of the collecting chamber 31 and the collecting member 33. By means of dashed lines the approximate length of the suction surface of the collecting member 33 is shown.
  • FIG 3 is shown how the waist 34 prevents the flowing of fibre gas flows 9 from the collecting member 33 towards the fiberising apparatus 32.
  • the gas flows towards the fiberising apparatus 33 are prevented by the ceiling 36' of the fibre forming part 36 of the collecting chamber 31.
  • the waist 34 forms a mechanical restraint, blocking the back flow of the streams 9 to the fiberising apparatus 32.
  • a separate movable ceiling portion 40 is arranged in the ceiling end 36" of the fibre forming part 36 of the collecting chamber 31 .
  • the ceiling portion 40 can be arranged movable, for example by means of an overlapping.
  • Behind the roof portion 40 a sealing means 41 is arranged.
  • a valve means 42 is arranged in an end 41' of the sealing means 41 .
  • the valve means 42 is usually of rubber or some corresponding material, and it has been arranged movable.
  • the position of the valve means 42 is influenced by the pressure that prevails in the collecting chamber 31. If the pressure in the collecting chamber is optimal the position of the valve means is straight.
  • valve means If an underpressure prevails in the collecting chamber the valve means is sucked towards the collecting chamber and the fiberising apparatus. If an overpressure prevails in the collecting chamber the valve means is pushed away from the collecting chamber and the fiberising apparatus.
  • the position of the valve means can therefore be used under certain conditions for indicating pressure conditions in the collecting chamber.
  • the pressure conditions in a levelling chamber 43 are controlled by controlling the distance between the collecting member 33 and the ceiling end 36 ". By controlling the pressure conditions the structure of the collected primary web can be affected, while roll ups and nodules can be minimised. Then a primary web showing decreased variations in density is obtained.
  • FIG 4 an embodiment of the collecting chamber according to the present invention is schematically shown in a perspective view.
  • the collecting member is formed by two collecting drums 53, 53'.
  • the collecting chamber 51 is arranged between the fiberising apparatus 52 and the collecting drums 53, 53'.
  • a waist 54 the cross section of which is essentially kept constant over the entire length of the waist, is arranged between the first end 51' and the second end 51" of the collecting chamber 51.
  • a shot separator 55 is also connected to the collecting chamber 51.
  • the mineral fibres are collected on the collecting surfaces of the rotating collecting drums 53, 53' and the fibres are removed from the collecting chamber 51 in the form of two primary fibre webs 56, 56' comprising mineral fibres and binder which is applied to the fibres at the fiberising apparatus 52 or in the collecting chamber 51.
  • Collecting chambers according to the present invention are well suited to be used with a fiberising apparatus having a high fibre producing capacity. Such fiberising apparatuses are disclosed for example in Finnish Patent Applications FI 20011561 and FI 20011562 .
  • a collecting chamber according to the present invention is used in conjunction with a fiberising apparatus having a high fiberising capacity turbulence free conditions can be guaranteed in the collecting chamber even if the produced amount of fibre is high. In this manner fibre orientation in the primary fibre web can be improved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP06755393.3A 2005-06-01 2006-05-31 Collecting chamber and method in the manufacture of mineral fibres Active EP1888829B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL06755393T PL1888829T3 (pl) 2005-06-01 2006-05-31 Komora zbierająca i sposób wytwarzania włókien mineralnych
SI200631594T SI1888829T1 (sl) 2005-06-01 2006-05-31 Zbiralna komora in postopki pri izdelavi mineralnih vlaken

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20050582A FI120735B (sv) 2005-06-01 2005-06-01 Uppsamlingskammare och ett förfarande vid framställning av mineralfibrer
PCT/FI2006/000171 WO2006128955A2 (en) 2005-06-01 2006-05-31 Collecting chamber and method in the manufacture of mineral fibres

Publications (2)

Publication Number Publication Date
EP1888829A2 EP1888829A2 (en) 2008-02-20
EP1888829B1 true EP1888829B1 (en) 2013-05-01

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EP06755393.3A Active EP1888829B1 (en) 2005-06-01 2006-05-31 Collecting chamber and method in the manufacture of mineral fibres

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EP (1) EP1888829B1 (ru)
CN (1) CN101189379B (ru)
DK (1) DK1888829T3 (ru)
FI (1) FI120735B (ru)
PL (1) PL1888829T3 (ru)
RU (1) RU2378205C2 (ru)
SI (1) SI1888829T1 (ru)
UA (1) UA91365C2 (ru)
WO (1) WO2006128955A2 (ru)

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Publication number Priority date Publication date Assignee Title
WO2015142294A1 (en) * 2014-03-17 2015-09-24 Izoteh D.O.O. Collecting chamber and fiber formation method
US10894737B2 (en) 2016-01-15 2021-01-19 Thermal Ceramics Uk Limited Apparatus and method for forming melt-formed inorganic fibres

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Publication number Priority date Publication date Assignee Title
US4090241A (en) * 1975-12-15 1978-05-16 Owens-Corning Fiberglas Corporation Method for estimating and controlling the mass flow rate of a free falling fluid stream
FI77273C (sv) * 1986-04-25 1989-02-10 Partek Ab Förfarande och anordning för bildande av mineralullsbanor.
FI78445C (sv) * 1987-06-18 1989-08-10 Partek Ab Arrangemang för renhållning av de inre ytorna i en ullkammare för mine ralullstillverkning
DE58909013D1 (de) * 1989-06-29 1995-03-23 Gruenzweig & Hartmann Verfahren und Einrichtung zur Herstellung von Mineralwollevliesen aus insbesondere Steinwolle.
MY127992A (en) * 1999-09-28 2007-01-31 Rockwool Int Processes and apparatus for the production of man-made vitreous fibre products

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Publication number Publication date
CN101189379A (zh) 2008-05-28
FI20050582A0 (fi) 2005-06-01
RU2378205C2 (ru) 2010-01-10
FI120735B (sv) 2010-02-15
EP1888829A2 (en) 2008-02-20
WO2006128955A3 (en) 2007-02-01
RU2007149326A (ru) 2009-07-20
FI20050582A (fi) 2006-12-02
SI1888829T1 (sl) 2013-07-31
PL1888829T3 (pl) 2013-08-30
WO2006128955A2 (en) 2006-12-07
DK1888829T3 (da) 2013-07-29
UA91365C2 (ru) 2010-07-26
CN101189379B (zh) 2011-04-13

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