NO770206L - PROCEDURE AND DEVICE FOR OPENING FIBER RAILS BY CENTRIFYING A MELT. - Google Patents
PROCEDURE AND DEVICE FOR OPENING FIBER RAILS BY CENTRIFYING A MELT.Info
- Publication number
- NO770206L NO770206L NO770206A NO770206A NO770206L NO 770206 L NO770206 L NO 770206L NO 770206 A NO770206 A NO 770206A NO 770206 A NO770206 A NO 770206A NO 770206 L NO770206 L NO 770206L
- Authority
- NO
- Norway
- Prior art keywords
- centrifuge
- fiber
- melt
- flow
- fiber flow
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title claims description 64
- 238000000034 method Methods 0.000 title claims description 21
- 239000000155 melt Substances 0.000 title claims description 11
- 239000011230 binding agent Substances 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims 1
- 210000002268 wool Anatomy 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000006060 molten glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003238 silicate melt Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
Foreliggende oppfinnelse angår en fremgangsmåteThe present invention relates to a method
og en anordning for oppnåelse av en fiberbane fra en smelte,and a device for obtaining a fiber web from a melt,
idet smeiten innmates i en roterende sentrifuge fra den i relasjon til drivorganene motsatte siden av denne og de fra sentrifugen utkommende fiberbanene styres deretter ved hjelp av gassblåsing som en sylindrisk strømning som omgir de nevnte drivorganene eller matingskanalene, bort fra sentrifugen . as the melt is fed into a rotating centrifuge from the opposite side in relation to the drive means, and the fiber webs emerging from the centrifuge are then controlled by means of gas blowing as a cylindrical flow that surrounds the aforementioned drive means or feed channels, away from the centrifuge.
Ved fibrering av forskjellige arter silikatsmelter benyttes i alminnelighet sentrifugalkraften for sentrifugering av smeiten til fibre. Det eksisterer to prinsippielt forskjellige fremgangsmåter for utleding av smeiten til sentrifugen. Ved den tidligere alminnelige benyttede Hager-metoden uthelles msmeltes glass på en sentrifuge hvis plan er vannrett og hvis roterende akse befinner seg under dette plan, idet gassmunnstykker ovenfor sentrifugen tvinger fibrene til å gå omkring akselen. Ved flere senere utviMéde metoder skjer inn-matingen av smeltet glass i sentrifugen fra den side der den roterende aksel for sentrifugen befinner seg, idet gassmunn-stykkene befinner seg på samme side. Det er på den måte mulig å rette og behandle den oppstående fiberstrømmen fritt neden- When fiberizing different types of silicate melts, centrifugal force is generally used to spin the melt into fibres. There are two fundamentally different methods for discharging the smelt to the centrifuge. In the formerly common Hager method, molten glass is extracted on a centrifuge whose plane is horizontal and whose rotating axis is below this plane, as gas nozzles above the centrifuge force the fibers to go around the axis. In several later expanded methods, the feeding of molten glass into the centrifuge takes place from the side where the rotating shaft for the centrifuge is located, as the gas nozzles are located on the same side. In this way, it is possible to direct and process the arising fiber flow freely below
for sentrifugen, uten at akselen og rotasjonsmaskineriet for-styrrer styringen av fibrene og utbredingen av bindemiddelet i fiberstrømmen, eller utleding av fibrene på en transportør som ligger på undersiden og hvor den egentlige fiberbanen oppstår. for the centrifuge, without the shaft and rotation machinery interfering with the management of the fibers and the spread of the binder in the fiber flow, or the discharge of the fibers onto a conveyor which is located on the underside and where the actual fiber path occurs.
Hensikten med foreliggende oppfinnelse er å fremskaffe en ny metode og en anordning for utforming av fiberbane, idet termoplastisk smelte helles på sentrifugen fra den side som befinner seg på motsatt side av den roterende akselen og rotasjonsmaskineriet. Sentrifugen kan være vannrett slik som ve ti Hager-prosessen, der smeiten helles direkte ovenfra og nedover, idet den roterende akselen befinner seg vertikalt på sentrifugens nedre side. The purpose of the present invention is to provide a new method and a device for forming fiber webs, thermoplastic melt being poured onto the centrifuge from the side opposite the rotating shaft and the rotating machinery. The centrifuge can be horizontal, as in the Hager process, where the melt is poured directly from above downwards, the rotating shaft being located vertically on the lower side of the centrifuge.
Planet behøver imidlertid ikke være vannrett og ut-hellingen behøver ikke skje vertikalt, men den kan være styrt skrått slik som f.eks. ved Nystrøms stenullprosess. Også ■ sentrifugens akse kan helle. Vesentlig er det imidlertid at maskineriet som benyttes for rotasjonen av sentrifugen befinner seg på forskjellig side av sentrifugens rotasjonsplan sammen-lignet med påføringen av smeiten. However, the plane does not have to be horizontal and the slope does not have to be vertical, but it can be guided obliquely, such as e.g. at Nystrøm's stone wool process. Also ■ the axis of the centrifuge can tilt. It is essential, however, that the machinery used for the rotation of the centrifuge is located on a different side of the centrifuge's rotation plane compared to the application of the melt.
Det er tidligere utviklet flere metoder for fra sentrifugen å fjerne en fibermatte eller teppe som dannes som en sylindrisk krans omkring akselen. Den mest primitive .metoden besto i at fibrene ble tillatt å senke seg på et vannrett plan hvorfra fibermatten ble fjernet for hånd ved hjelp av en stang med en krok i enden. En annen metode besto i at fibermatten ble avbrutt ved innblåsing av trykkluft og den frembragte fiberstrålen ble ved hjelp av denne trykkluftblåsing styrt inn i et rør langs hvilket den ble ført videre f.eks. til en perforert transportør, idet et undertrykk på den nedre siden av denne forårsaket fiberbanen. Ved utnyttelse av en slik metode var det ikke mulig å utbre bindemiddel i ullen, da ullen på den korte transportøren dannet uhomogene baller og bindemiddelet kunne ikke trenge inn i eller mellom disse, og i tilfelle bindemiddelet skulle være innblåst i ullen i et tidligere stadium, ville det ha forårsaket fastliming i rørene. Ved en annen metode der fiberknippene eller ullen ble fjernet fra akselomkretsen ved hjelp av trykkluft ble det innblåst samtidig bindemiddel, hvorved såvel den trykkluftstrømmen som avbrøt fibrene samt bindemiddelstrømmen beveget seg frem og tilbake langs en med sentrifugens akse konsentrisk sirkelbane, slik at fiberstrømmen på grunn av den frem og tilbakegående bévegelsen ble utbredt jevnt på transportwiren. Videre har man ved en slik fremgangsmåte for fjerning av fibrene fra om-rådet omkring sentrifugens akse utnyttet en vifte som var anordnet på samme akse som sentrifugen. Several methods have previously been developed to remove from the centrifuge a fiber mat or blanket that is formed as a cylindrical ring around the shaft. The most primitive .method consisted in the fibers being allowed to sink on a horizontal plane from which the fiber mat was removed by hand by means of a rod with a hook at the end. Another method consisted in the fiber mat being interrupted by blowing in compressed air and the produced fiber jet was directed into a pipe along which it was carried forward, e.g. to a perforated conveyor, a negative pressure on the lower side of this causing the fiber web. By using such a method, it was not possible to spread binder in the wool, as the wool on the short conveyor formed inhomogeneous balls and the binder could not penetrate into or between these, and in the event that the binder should have been blown into the wool at an earlier stage, it would have caused sticking in the pipes. In another method, where the fiber bundles or wool were removed from the shaft circumference using compressed air, binder was simultaneously blown in, whereby both the compressed air flow that interrupted the fibers and the binder flow moved back and forth along a circular path concentric with the axis of the centrifuge, so that the fiber flow due to the reciprocating movement was spread evenly on the transport wire. Furthermore, in such a method for removing the fibers from the area around the axis of the centrifuge, a fan was used which was arranged on the same axis as the centrifuge.
Hensikten med foreliggende oppfinnelse er å fremskaffe en fremgangsmåte og en anordning ved hjelp av hvilken man fra en sentrifuge av den ovenfor nevnte såkalte Hager- eller Nystrømtype kan fjerne de omkring akselen opp-ståtte fibrene og av disse danne en jevn fiberstrøm i hvilken det er spesielt lett å blåse inn bindemiddel som trenges for binding av fibrene. The purpose of the present invention is to provide a method and a device by means of which one can remove the fibers that have arisen around the shaft from a centrifuge of the above-mentioned so-called Hager or Nystrøm type and from these form a uniform fiber flow in which it is particularly easy to blow in binder that is needed for binding the fibers.
En vesentlig del av anordningen ifølge oppfinnelsen utgjøres av en "trykkluftkniv" fra hvilken trykkluft strømmer ut. Da denne trykkluft rettes vesentlig mot den sylindriske fiberstrømmen som oppstår omkring sentrifugens aksel eller omkring smeltens innmatingsrør, kan denne fiberstrømmen skjæres opp uten at fibrene samler seg utenpå det som fordeler fungerende organ. Da fiberstrømmen på denne måte deles opp, dvs. den sylindriske strømningen blir skåret opp, kan den således frembragte strømningen av gasser og fibre ved hjelp av hensiktsmessige styrelegemer, f.eks. av plate tilbøyede s.tyre-organer, bres ut slik at fiberstrømmen danner en enhetlig, jevnbrev matte, som i form av en matte utblåses på en underliggende transportør der fiberbanen således dannes. Fremgangsmåten ifølge oppfinnelsen er spesielt fordelaktig på A significant part of the device according to the invention consists of a "compressed air knife" from which compressed air flows out. As this compressed air is directed substantially towards the cylindrical fiber flow that occurs around the centrifuge's shaft or around the melt's feed pipe, this fiber flow can be cut without the fibers gathering outside the distributing working organ. When the fiber flow is split up in this way, i.e. the cylindrical flow is cut up, the thus produced flow of gases and fibers can by means of appropriate control bodies, e.g. of plate inclined s.tyre bodies, are blown out so that the fiber stream forms a uniform, even lettered mat, which is blown out in the form of a mat onto an underlying conveyor where the fiber web is thus formed. The method according to the invention is particularly advantageous in
grunn av at det i fiberstrømmen når denne forlater kanten på styreplatene kan innblåses bindemiddel fra den ene sidene eller fra motsatte punkter ved begge sidene, hvorved om-blandingen av bindemiddel og fibre er ideell. due to the fact that in the fiber flow when it leaves the edge of the guide plates, binder can be blown in from one side or from opposite points on both sides, whereby the re-mixing of binder and fibers is ideal.
Fiberstrømmen kan lettes ved at det på de styrende flatene innblåses trykkluft som påskynder og kontrollerer .fiberstrømningen. Fiberstrømningen kan videre oppdeles ved hjelp av de ovenfor nevnte trykkluftkniver i flere deler og således kan fibrenes fordeling i strømningens utbredelsesretning kontrolleres. The fiber flow can be eased by blowing compressed air onto the guiding surfaces, which accelerates and controls the fiber flow. The fiber flow can be further divided with the help of the above-mentioned compressed air knives into several parts and thus the distribution of the fibers in the direction of propagation of the flow can be controlled.
På denne måte kan man oppnå en ideell og jevn utbreding av fibrene på den underliggende transportøren. In this way, an ideal and even distribution of the fibers on the underlying conveyor can be achieved.
Legemene som styrer fiberstrømmen kan også utformes slik at strømmen retter seg vannrett oppover til et sugeskap, der fibrenes strømming skjer langsomt og de senker seg på transportwiren under styring av en svak luftstrøm, idet det også er mulig å oppnå en meget jevn utbreding av fibrene på transportør-en . The bodies that control the fiber flow can also be designed so that the flow is directed horizontally upwards to a suction cabinet, where the fibers flow slowly and they sink onto the transport wire under the control of a weak air flow, as it is also possible to achieve a very even distribution of the fibers on the carrier.
0 0
Oppfinnelsen skal i det følgende beskrives nærmere under henvisning til tegningen, der In the following, the invention will be described in more detail with reference to the drawing, where
fig. 1 skjematisk viser en anordning som er hensiktsmessig for utførelse av fremgangsmåten ifølge oppfinnelsen, fig. 1 schematically shows a device which is suitable for carrying out the method according to the invention,
fig. 2 viser et snitt etter linjen A-A i fig. 1, noe forstørret, fig. 2 shows a section along the line A-A in fig. 1, slightly enlarged,
fig. 3 viser et snitt etter linjen B-B i fig. 2, fig. 3 shows a section along the line B-B in fig. 2,
fig. H viser en alternativ utførelses form omfattende flere parallelle sentrifugeanordninger ifølge oppfinnelsen, og fig. H shows an alternative embodiment comprising several parallel centrifuge devices according to the invention, and
fig. 5 viser en annen alternativ utførelsesform med flere etter hverandre beliggende sentrifugeanordninger ifølge oppfinnelsen. fig. 5 shows another alternative embodiment with several successive centrifuge devices according to the invention.
Den på fig. 1 viste anordningen, som nærmest er planlagt for fremstilling av mineralull fra en silikatsmelte, omfatter en roterende sentrifuge 1 hvis rotasjonsmaskineri ikke er vist nærmere. Sentrifugen 1 er festet i en søyle-formet stamme 2 ved en roterbart lagret vertikal aksel 3» The one in fig. The device shown in 1, which is mostly planned for the production of mineral wool from a silicate melt, comprises a rotating centrifuge 1, the rotation machinery of which is not shown in more detail. The centrifuge 1 is fixed in a column-shaped stem 2 by a rotatably supported vertical shaft 3"
Smeltet glass innmates i den roterende sentrifugen ovenfra via et rør 4. Ved hjelp av rotasjonens inn-virkning fordeler smeiten seg jevnt på sentrifugens flater og strømmer ut mot sentrifugens kant. Rundt sentrifugens kant er det på kjent måte et innblåsingssystem 5 ved hjelp av hvilket fibrene som oppstår ved sentrifugens kant kan styres. Blåsingen kan skje ved hjelp av trykkluft, vanndamp eller forbrennings gass. Blåsingens retning er vesentlig vinkelrett mot sentrifugeplanet, slik at det oppstår en sylindrisk fiberstrøm 6 omkring sentrifugens akse. Fiberstrømmen oppdeles ved? hjelp av en aåkalt trykkluftkniv 7 som dannes av et oppover avsmalnende hylster 8 (fig. 2 og 3), hvis vegger dannes av en smal, vesentlig vannrett spalte (9) gjennom hvilken trykkluft som innblåses i omhyllingen 8 strømmer ut gjennom et rør 10. Når fiberstrømmen er oppdelt og den sylindriske strømmen er skåret opp, utbres strømmen under styring av skiver 11, slik at fiberstrømmen danner en enhetlig, i tverrsnitt vesentlig rektangulær fiberstrøm 12 som mates ut på en underliggende transportør 13 der fiberbanen dannes. Nødvendig bindemiddel blåses fra begge sider av fiber- strømmen gjennom munnstykker 14. Por styring av fiber-strømmen i ønsket retning kan det i tillegg blåses inn trykkluft på de styrende flatene gjennom munnstykker 15. Molten glass is fed into the rotating centrifuge from above via a tube 4. With the help of the effect of the rotation, the melt is distributed evenly on the surfaces of the centrifuge and flows out towards the edge of the centrifuge. Around the edge of the centrifuge there is, in a known manner, a blow-in system 5 by means of which the fibers that arise at the edge of the centrifuge can be controlled. Blowing can be done using compressed air, water vapor or combustion gas. The direction of the blowing is substantially perpendicular to the centrifuge plane, so that a cylindrical fiber flow 6 occurs around the axis of the centrifuge. The fiber flow is divided by? using a so-called compressed air knife 7 which is formed by an upwardly tapering casing 8 (fig. 2 and 3), the walls of which are formed by a narrow, essentially horizontal slot (9) through which compressed air that is blown into the casing 8 flows out through a pipe 10. When the fiber flow is divided and the cylindrical flow is cut up, the flow is propagated under the control of disks 11, so that the fiber flow forms a uniform, substantially rectangular fiber flow 12 in cross-section which is fed out onto an underlying conveyor 13 where the fiber web is formed. Necessary binder is blown from both sides of the fiber flow through nozzles 14. In order to control the fiber flow in the desired direction, compressed air can also be blown onto the guiding surfaces through nozzles 15.
Sentrifugeanordninger ifølge oppfinnelsen kan tilpasses under et maskineri som avgir smelte, enten slik at de befinner seg parallelt, slik somvvist i fig. 4 eller etter hverandre slik som i fig. 5, eller de kan danne en kombinasjon av disse. Jo flere sentrifuger som benyttes i hver retning dess bedre utbreding oppnås. Centrifuge devices according to the invention can be adapted below a machinery that emits melt, either so that they are located in parallel, as shown in fig. 4 or one after the other as in fig. 5, or they may form a combination of these. The more centrifuges that are used in each direction, the better distribution is achieved.
Fremgangsmåten byr også på mulighet til konstruk-sjon av meget høykapasitive produksjonsenheter. The method also offers the possibility of constructing very high-capacity production units.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI760157A FI760157A (en) | 1976-01-23 | 1976-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO770206L true NO770206L (en) | 1977-07-26 |
Family
ID=8509703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO770206A NO770206L (en) | 1976-01-23 | 1977-01-21 | PROCEDURE AND DEVICE FOR OPENING FIBER RAILS BY CENTRIFYING A MELT. |
Country Status (11)
Country | Link |
---|---|
BE (1) | BE850629A (en) |
DE (1) | DE2702361A1 (en) |
DK (1) | DK24477A (en) |
ES (1) | ES455241A1 (en) |
FI (1) | FI760157A (en) |
FR (1) | FR2338912A1 (en) |
IT (1) | IT1082511B (en) |
NL (1) | NL7700659A (en) |
NO (1) | NO770206L (en) |
PT (1) | PT66098B (en) |
SE (1) | SE7700645L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3169320D1 (en) * | 1981-03-25 | 1985-04-25 | James River Dixie Northern Inc | Methods for forming nonwoven fibrous webs |
DE3171295D1 (en) * | 1981-03-25 | 1985-08-14 | James River Norwalk Inc | Apparatus for the manufacture of fibrous webs and method therefor |
FI94967C (en) * | 1991-09-18 | 1995-11-27 | Yhtyneet Paperitehtaat Oy | Method and apparatus for dry forming a web of long-fiber material |
US5603743A (en) * | 1995-03-31 | 1997-02-18 | Owens-Corning Fiberglas Technology Inc. | High frequency air lapper for fibrous material |
US5605556A (en) * | 1995-03-31 | 1997-02-25 | Owens-Corning Fiberglas Technology Inc. | Linear ramped air lapper for fibrous material |
-
1976
- 1976-01-23 FI FI760157A patent/FI760157A/fi not_active Application Discontinuation
-
1977
- 1977-01-17 FR FR7701239A patent/FR2338912A1/en not_active Withdrawn
- 1977-01-21 DK DK24477A patent/DK24477A/en unknown
- 1977-01-21 DE DE19772702361 patent/DE2702361A1/en active Pending
- 1977-01-21 IT IT67137/77A patent/IT1082511B/en active
- 1977-01-21 SE SE7700645A patent/SE7700645L/en unknown
- 1977-01-21 NL NL7700659A patent/NL7700659A/en not_active Application Discontinuation
- 1977-01-21 ES ES455241A patent/ES455241A1/en not_active Expired
- 1977-01-21 PT PT66098A patent/PT66098B/en unknown
- 1977-01-21 NO NO770206A patent/NO770206L/en unknown
- 1977-01-21 BE BE174278A patent/BE850629A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2338912A1 (en) | 1977-08-19 |
PT66098A (en) | 1977-02-01 |
PT66098B (en) | 1978-06-27 |
SE7700645L (en) | 1977-07-24 |
IT1082511B (en) | 1985-05-21 |
NL7700659A (en) | 1977-07-26 |
ES455241A1 (en) | 1978-01-01 |
BE850629A (en) | 1977-05-16 |
DK24477A (en) | 1977-07-24 |
DE2702361A1 (en) | 1977-07-28 |
FI760157A (en) | 1977-07-24 |
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