DK155163B - PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS - Google Patents
PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS Download PDFInfo
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- DK155163B DK155163B DK309886A DK309886A DK155163B DK 155163 B DK155163 B DK 155163B DK 309886 A DK309886 A DK 309886A DK 309886 A DK309886 A DK 309886A DK 155163 B DK155163 B DK 155163B
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- mineral wool
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- 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
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- 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
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- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—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 by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
-
- 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
-
- 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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Nonwoven Fabrics (AREA)
Description
iin
DK 155163 BDK 155163 B
Den foreliggende opfindelse angår en fremgangsmåde ved fremstilling af et mineraluldsprodukt ud fra en mineraluldsbane bestående af mineralfibre, der er opsamlet på et perforeret transportbånd fra luftbåren tilstand, hvilke 5 fibre under eller inden opsamlingen har fået tilført et hærdbart bindemiddel, der bringes til hærdning under kompression af mineraluldsbanen til ønsket densitet mellem to kompressionsbånd under hærdningen.The present invention relates to a method of producing a mineral wool product from a mineral wool web consisting of mineral fibers collected on an airborne perforated conveyor belt which has been supplied with a curable binder which is cured under compression prior to collection. of the mineral wool web to the desired density between two compression bands during curing.
Ved mineraludsplader i form af mineralfibermåtter og 10 fiberplader til navnlig gulv- og tagisolering er det på grund af punktbelastninger stammende fra personer, som går på isoleringslaget, nødvendigt at anvende mineraluld med en stivhed, der langt overstiger, hvad der er nødvendigt for den iøvrigt forekommende, jævnt fordelte belastning. Da den 15 stivere mineraluld indeholder mere fibermateriale end en mindre stiv mineraluld, er den både tungere og mere kostbar at fremstille end en mindre stiv mineraluld, uden at der medfølger en gevinst i form af forøget isoleringsevne. Problemet med anvendelse af en stivere mineraluld end 20 nødvendigt til opnåelse af en ønsket isoleringsevne kendes også fra udvendig isolering af mure, hvor der er behov for en hård og modstandsdygtig, udvendig overflade.For mineral plaques in the form of mineral fiber mats and 10 plaques for especially floor and roof insulation, it is necessary to use mineral wool with a stiffness far in excess of that which is necessary for the otherwise occurring due to point loads emanating from persons walking on the insulation layer. , evenly distributed load. As the 15 stiffer mineral wool contains more fiber material than a less stiff mineral wool, it is both heavier and more expensive to manufacture than a less stiff mineral wool without the benefit of increased insulating capacity. The problem of using a stiffer mineral wool than 20 necessary to achieve a desired insulating ability is also known from exterior insulation of walls where a hard and resilient exterior surface is needed.
Det er derfor almindeligt, at sådanne isoleringer udføres af sammensatte materialer eller af flere lag med 25 forskellig stivhed og/eller struktur. Sådanne isoleringer kan enten fremstilles på byggepladsen ved udlægning af flere fra hinanden forskellige lag, eller under fremstillingen af mineralulden, idet forskellige baner af mineraluld efter hærdningen af bindemidlet afskæres og sammenlimes eventuelt 30 ved at den ene bane opskæres i lameller, som sammenstilles på en trykfast plade, således at den ønskede bæreevne opnås for både den spredte og den mere koncentrerede belastning. Disse fremgangsmåder til opnåelse af forøget bæreevne for koncentreret belastning medfører imidlertid en betydelig 35 ekstra håndtering af mineralulden, hvilket resulterer i forholdsvis store omkostninger ved etablering af den samlede isolering.It is therefore common for such insulations to be made of composite materials or of several layers of different stiffness and / or structure. Such insulations can be made either at the construction site by laying several different layers, or during the production of the mineral wool, with different layers of mineral wool after curing of the binder being cut and glued optionally by cutting one web into slats which are assembled on a pressure-resistant plate so that the desired load capacity is obtained for both the scattered and the more concentrated load. However, these methods for achieving increased load bearing capacity for concentrated loading result in a substantial additional handling of the mineral wool, resulting in relatively high costs of establishing the overall insulation.
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Por at nedbringe omkostningerne ved etableringen af en isolering med forskellig densitet i forskellige lag af isoleringen har man ofte forsøgt at fremstille mineraluldsplader med f.eks lette og porøse kerner og trykfordelende 5 lag på den ene eller begge sider.To reduce the cost of establishing an insulation of different densities in different layers of the insulation, attempts have often been made to produce mineral wool sheets with, for example, light and porous cores and pressure distributing 5 layers on one or both sides.
Fra DAS 1 295 837 kendes en plade, der sammensat af flere lag med forskellig hårdhed. Det er i beskrivelsen angivet, at der dannes en måtte af mineraludsfibre, der er tilsat 15-25% bindemiddel. Måtten komprimeres til en rum-10 vægt på mellem 0,008 og 0,06 g/cm og hærdes. En anden måtte af uhærdet uld lægges oven på eller under den først dannede måtte, hvorefter de begge indføres i en opvarmet presse eller føres gennem opvarmede valser, idet der under hærdningen opretholdes et tryk, der giver den hærdede måtte 3 15 en rumvægt på melem 0,09 og 0,26 g/cm . Denne fremgangsmåde er ikke tilfredsstillende udfra ønsket om at anvende en kontinuerlig produktion.From DAS 1 295 837 is known a plate composed of several layers of different hardness. It is stated in the specification that a mat of mineral fibers is formed, with 15-25% binder added. The mat is compressed to a space-10 weight of between 0.008 and 0.06 g / cm and cured. A second mat of uncured wool is laid on or under the first formed mat, after which they are both introduced into a heated press or passed through heated rollers, maintaining a pressure during the curing which gives the cured mat a room weight of flour 0. , 09 and 0.26 g / cm. This process is not satisfactory based on the desire to use continuous production.
Det er ligeledes uheldigt, at sammenlægningen af en hærdet og en uhærdet pladedel giver en skarp afgrænsning 20 mellem de forskellige materialer med varierende rumvægt.It is also unfortunate that the joining of a cured and an uncured sheet portion provides a sharp demarcation 20 between the various materials of varying room weight.
Det er fra beskrivelsen til tysk patent nr 832.201 kendt på en del af en mineraludsbane at pålægge yderligere mineraluld, inden den samlede bane komprimeres og hærdes.It is known from the specification for German Patent No. 832,201 to apply additional mineral wool to a part of a mineral web before the entire web is compacted and hardened.
Ved denne fremgangsmåde vil de dele af mineraluldsbanen med 25 yderligere mineraluld pålagt opnå en højere rumvægt end den øvrige bane. Imidlertid vil områderne med den større rumvægt strække sig gennem hele pladens tykkelse, medens der ikke opnås nogen forbedring i de områder, hvor der ikke er pålagt ekstra mineraluld. En generel forøgelse af bæreevnen 30 overfor koncentrerede belastninger opnås ikke uden at hele pladen bliver forsynet med et ekstra lag mineraluld.In this process, those parts of the mineral wool web with 25 additional mineral wool applied will achieve a higher room weight than the other web. However, the areas of greater bulk will extend throughout the thickness of the slab, while no improvement is achieved in those areas where no additional mineral wool is applied. A general increase in bearing capacity 30 against concentrated loads is not achieved without the whole sheet being provided with an extra layer of mineral wool.
Formålet med den foreliggende opfindelse er at tilvejebringe en fremgangsmåde, ved hvilken der kan fremstilles mineraluldsplader med forøget styrke over for koncen-35 trerede belastninger, uden at der i større omfang tilføres fibermateriale, som ikke er nødvendigt for bæreevnen overfor den jævnt fordelte belastning. Med andre ord søges derThe object of the present invention is to provide a method by which mineral wool sheets of increased strength can be produced against concentrated loads without providing to a greater extent fiber material which is not necessary for the load-bearing capacity of the evenly distributed load. In other words, it is sought
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3 tilvejebragt en fremgangsmåde, ved hvilken der kontinuerligt kan fremstilles mineraluldsplader med i tykkelsesretningen varierende rumvægt.3 provides a method by which mineral wool sheets of thickness varying in thickness can be continuously produced.
Dette formål opnås i henhold til opfindelsen ved en 5 fremgangsmåde af den indledningsvis nævnte art, hvilken fremgangsmåde ifølge opfindelsen er ejendommelig ved det i den kendetegnende del af krav 1 angivne.This object is achieved according to the invention by a method of the type mentioned in the introduction, which method according to the invention is characterized by the characterizing part of claim 1.
Opfindelsen bygger på den iagttagelse, at den uhær-dede mineraluld, som er tilsat bindemiddel, kan forkompri-10 meres til opnåelse af en blivende sammentrykning, der bibeholdes også under den endelige hærdning, således at de forkomprimerede dele af mineraluldsbanen opnår en større rumvægt end de øvrige dele af mineraluldspladen. Det er derfor med fremgangsmåden ifølge opfindelsen muligt for eksempel 15 at fremstille mineraluldsplader med en forholdsvis let underside og et stift og forholdsvis hårdt øvre lag, der kan modstå koncentrerede belastninger og fordele disse over en større del af den underliggende mineraluld, der derfor ikke har behov for væsentlig større styrke end den, som er nød-20 vendig for at bære den jævnt fordelte belastning. Den gennem tykkelsen af mineraluldspladen varierende rumvægt muliggør med samme gennemsnitlige rumvægt fremstillingen af plader, der er mere modstandsdygtige over for de hyppigste påvirkninger, eller plader, der med mindre gennemsnitlig 25 rumvægt bibeholder den hidtidige modstandskraft.The invention is based on the observation that the uncured mineral wool added to binder can be pre-compacted to obtain a permanent compression which is also maintained during the final cure so that the pre-compressed portions of the mineral wool web achieve a greater weight than the other parts of the mineral wool plate. It is therefore possible with the method according to the invention, for example, to make mineral wool sheets having a relatively light underside and a rigid and relatively hard upper layer that can withstand concentrated loads and distribute them over a larger part of the underlying mineral wool, which therefore does not need for substantially greater strength than that necessary to carry the evenly distributed load. The room weight varying through the thickness of the mineral wool plate allows, with the same average room weight, the production of plates which are more resistant to the most frequent influences, or plates which with less average 25 room weight retain the previous resistance.
Isoleringsevnen er upåvirket af styrkeforøgelsen eller materialebesparelsen, alt efter hvad man ønsker at opnå.The insulating ability is unaffected by the increase in strength or the material savings, whichever you want to achieve.
Ved mineraluld forstås normalt og i forbindelse med den foreliggende opfindelse syntetisk fremstillet mineral-30 uld. Syntetisk fremstillet mineraluld har fibre, der i kemisk sammensætning er forskellige fra de naturlige asbestfibre. Syntetisk mineraluld kan kan dog også variere i kemisk sammensætning med generelle betegnelser som glasuld, stenuld og slaggeuld. Desuden vil de anlæg, hvorpå mineral-35 ulden fremstilles, variere i afhængighed af typen af fibre eller typen af det færdige produkt.Mineral wool is normally and synthetically made mineral wool for the purposes of the present invention. Synthetically made mineral wool has fibers that differ in chemical composition from natural asbestos fibers. However, synthetic mineral wool may also vary in chemical composition with general terms such as glass wool, rock wool and slag wool. In addition, the plants on which the mineral wool is manufactured will vary depending on the type of fiber or the type of finished product.
Fremgangsmåden ifølge opfindelsen kan varieres af- 4The process of the invention can be varied by 4
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hængigt af den type anlæg, hvorpå mineraluldsbanen fremstilles. Disse varianter fremgår af kravene 2-4.depending on the type of plant on which the mineral wool web is manufactured. These variants are set out in claims 2-4.
Det er normalt nødvendigt, at komprimeringen inden hærdningen sker med et sådant tryk, at den komprimerede del 5 af mineraluldsbanen under denne reduceres i tykkelse i forhold til den oprindelige tykkelse. Umiddelbart efter komprimeringen vil mineralulden springe tilbage til en noget større tykkelse, men efter hærdningen vil den forkomprimerede mineraluld opnå større stivhed og rumvægt end den ikke 10 komprimerede eller i mindre grad komprimerede mineraluld.It is usually necessary that the compression prior to curing is carried out at such a pressure that the compressed portion 5 of the mineral wool web below it is reduced in thickness relative to the original thickness. Immediately after compaction, the mineral wool will return to a somewhat larger thickness, but after curing, the pre-compressed mineral wool will achieve greater stiffness and weight than the non-compressed or less compressed mineral wool.
Opfindelsen skal i det følgende beskrives nærmere med henvisning til tegningen, på hvilken:The invention will now be described in more detail with reference to the drawing, in which:
Fig. 1 viser et eksempel på et anlæg til fremstilling af f.eks glasuld og indrettet til udøvelse af opfin-15 delsen, fig. 2 og 3 viser et mellemprodukt fremstillet f.eks. af sten- eller slaggeuld, hvor fibrene først er af-lejret i form af en primærbane, der dernæst ved hjælp af en penduludlægger er udlagt med overlapning til dannelse af 20 den fulde tykkelse af den uhærdede mineraluldsbane, fig. 4 viser et eksempel på et anlæg, ved hvilket en del af fibrene opsamles på et indskudt opsamlingsbånd' til dannelse af en delbane, og fig. 5 viser et anlæg til udøvelse af fremgangsmåden 25 ifølge opfindelsen, ved hvilket mineraluldsbanen flækkes.FIG. 1 shows an example of a plant for the manufacture of, for example, glass wool and arranged for carrying out the invention; FIG. 2 and 3 show an intermediate product made e.g. Figs. of rock or slag wool, the fibers of which are first deposited in the form of a primary web, which is then laid out with an overlap to form the full thickness of the uncured mineral wool web, by means of a shuttle paver. 4 shows an example of a plant in which a portion of the fibers are collected on an interposed collecting tape to form a subway, and FIG. 5 shows a plant for carrying out the method 25 according to the invention, in which the mineral wool web is stained.
På fig. 1 ses en rende 1, der kan føre smeltet råmateriale frem til en række af spindeorganer 2. Spindeorga-nerne 2 udtrækker det smeltede råmateriale til fine fibre, og der kan til den derved frembragte fiberstrøm 3 tilsættes 30 et forstøvet bindemiddel på konventionel måde (ikke vist). Fiberstrømmen 3 afleveres på et løbende perforeret transportbånd 8, hvor lagtykkelsen af den opsamlede fiberbane 7 vokser i takt med, at et givet punkt af transportbåndet passerer spinde- eller fibreringsorganerne 2. Ved f.eks.In FIG. 1, a groove 1 is shown which can feed molten feedstock to a series of spinning means 2. The spinning means 2 extracts the molten feedstock into fine fibers and a nebulized binder can be added to the fiber stream 3 produced in the conventional manner (not shown). The fiber stream 3 is delivered to a continuous perforated conveyor belt 8, where the layer thickness of the collected fiber web 7 grows as a given point of the conveyor belt passes the spinning or fibrating means 2. In e.g.
35 hver anden fiberstrøm er der indskudt et par valser 4, som sammenpresser fiberstrømmen 3 til en forkomprimeret fiberbane 5. Den færdige fiberbane 7 kommer derved til at beståIn every other fiber stream, a pair of rollers 4 are inserted which compress the fiber stream 3 into a pre-compressed fiber web 5. The finished fiber web 7 will thereby consist
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5 af forkomprimerede fiberbaner 5 afvekslende med lette luftige fiberbaner 6. I stedet for den her viste placering af valserne 4, som kun er et eksempel, kan valserne, der eventuelt også kan udformes som pressebånd eller -plader, pla-5 ceres ved et hvilket som helst af fibreringsorganerne og i en anden placering end ved hvert andet. En variant af det viste arrangement kan være, at valserne 4 er placeret f.eks. ved de sidste tre fibreringsorganer i nedstrøms retning. Herved vil man opnå en forholdsvis blød, luftig 10 del af mineraluldsbanen nederst med en øvre del, som vil være en integreret del af det samlede produkt, og som vil opnå en større rumvægt og en fastere konsistens. Når fiberbanen på normal måde føres gennem en hærdeovn, kan banen eventuelt udsættes for en yderligere sammenpresning 15 fra de bånd, som fører mineraluldsbanen gennem hærdeovnen.5 of pre-compressed fiber webs 5 alternating with light airy fiber webs 6. Instead of the location shown here of the rollers 4, which is only one example, the rollers, which may also be designed as press strips or plates, can be placed at any any of the fibrous means and in a different location than at each other. A variant of the arrangement shown may be that the rollers 4 are positioned e.g. at the last three fibrating means downstream. Thereby, a relatively soft, airy portion of the mineral wool web will be obtained at the bottom with an upper portion which will be an integral part of the overall product and which will achieve a greater bulk weight and a firmer consistency. When the fiber web is routed normally through a curing furnace, the web may be subjected to additional compression 15 from the bands passing the mineral wool web through the curing furnace.
På fig. 2 og 3 ses en primærbane 21 opsamlet fra et eller flere fibreringsorganer på et perforeret transportbånd. Primærbanen 21 er komprimeret eller valset på en del 22 af dens bredde og er derefter med en konventionel pen-20 duludlægger, som f.eks. kan være af den fra beskrivelsen til GB patent nr. 1 035 688 kendte type, foldet til en bane med betydelig større tykkelse (t^). Den del 22 af primærbanen, som valses, kan variere fra f.eks. 1/10 til 1/2 af den fulde bredde af primærbanen, alt afhængig af hvor stor tyk-25 kelse (t ), der ønskes af den med højere densitet forsynede del af mineraluldsbanen. Ved den efterfølgende presning i hærdeovnen danner delen (t^) nemlig den del af det færdige produkt, som har større densitet og dermed større stivhed end det underliggende fibermateriale.In FIG. 2 and 3, a primary web 21 is collected from one or more fibrating means on a perforated conveyor belt. The primary web 21 is compressed or rolled on a portion 22 of its width and is then provided with a conventional pencil 20 extender such as e.g. may be of the type known from the specification of GB Patent 1,035,688, folded into a web of considerably greater thickness (t ^). The portion 22 of the primary web which is rolled may vary from e.g. 1/10 to 1/2 of the full width of the primary web, depending on the thickness (t) desired by the higher density portion of the mineral wool web. By the subsequent pressing in the curing oven, the part (t ^) forms, namely, the part of the finished product which has a higher density and thus greater stiffness than the underlying fiber material.
30 På fig. 4 ses endnu et eksempel på en i forbindelse med opfindelsen anvendelig fremstillingsmåde for mineraluld. I fiberstrømmen 42, som afgives af fibreringsorganet 41, er der indskudt et mellemliggende transportbånd 43, som er perforeret, og som på normal måde kan være forsynet med 35 et undertrykskammer på undersiden for at opnå en effektiv opsamling af fibre. Den herved opsamlede fiberbane 44 valses eller presses ved 45, og den pressede bane 46 transpor- 630 In FIG. 4 shows another example of a method of manufacture of mineral wool which is applicable to the invention. In the fiber stream 42 provided by the fiber means 41, there is inserted an intermediate perforated conveyor belt 43, which can normally be provided with a bottom chamber for negative pressure to obtain an efficient collection of fibers. The fiber web 44 thus collected is rolled or pressed at 45, and the pressed web 46 is transported 6
DK 155163 BDK 155163 B
teres videre til sammenlægning med banen 49, der er opsamlet på et normalt, perforeret opsamlingsbånd 48. Banerne 46 og 49 føres eventuelt til viderebehandling i en hærdeovn.is further passed for merging with the web 49 which is collected on a normal, perforated collecting tape 48. The lanes 46 and 49 are optionally passed for further processing in a curing oven.
Presningen kan som omtalt udføres ved valsning eller 5 presning af partielle dele af den uhærdede mineraluldsbane.As mentioned, the pressing can be carried out by rolling or pressing partial parts of the uncured mineral wool web.
Det er herved muligt at udføre valsningen med f.eks. mønstrede valser eller med valser med specielt ophøjede dele eller liniepartier. Ved at anvende profilerede valser kan der opnås produkter med en gitteragtig struktur, hvor denne 10 struktur består af mineraluld med større rumvægt og stivhed end den resterende del af produktet.Hereby it is possible to perform the rolling with e.g. patterned rollers or with rollers with specially raised parts or line portions. By using profiled rollers, products with a lattice-like structure can be obtained, where this structure consists of mineral wool with greater room weight and stiffness than the remaining part of the product.
Som et yderligere eksempel på fremstilling af mineraluld ved fremgangsmåden ifølge opfindelsen skal i forbindelse med fig. 5 beskrives en metode, hvor en mineralulds-15 bane 51, som er aflagt ved direkte fiberudlægning i fuld tykkelse eller ved penduludlægning af en primærbane, flækkes i to eller flere lag 54,55. Mineraluldsbanen 51 føres mellem nogle ruller 52 til dannelse af en mere ensartet struktur, tykkelse og rumvægt på banen inden flaskningen.As a further example of the production of mineral wool by the method according to the invention, in connection with FIG. 5 discloses a method in which a mineral wool web 51, which is deposited by direct full-thickness fiber laying or by pendulum laying of a primary web, is split into two or more layers 54.55. The mineral wool web 51 is passed between some rolls 52 to form a more uniform structure, thickness and space weight on the web prior to flaking.
20 Flækningen kan udføres på normal måde med båndsave 53 eller lignende. Et eller flere af lagene, som er fremkommet ved flækningen, føres til en valsning eller presning mellem flere efter hinanden følgende valsepar 56, hvorefter lagene igen sammenføjes til en integreret bane 57. Inden den in-25 tegrerede bane føres ind i hærdeovenen 59, kan banen eventuelt passere mellem yderligere valsepar 58.The splicing may be performed in the normal manner with band saw 53 or the like. One or more of the layers produced by the splicing are led to a rolling or pressing between several successive roll pairs 56, after which the layers are again joined to an integrated web 57. Before the integrated web is introduced into the curing oven 59, the web optionally passing between additional roller pairs 58.
Ved lydisolerende mineraluldsprodukter, som skal være selvbærende, er det f.eks. muligt at valse eller på anden måde komprimere den midterste del af den uhærdede mine-30 raluldsbane, hvorved det færdige, hærdede produkt får en hård, stiv kerne med porøse, lydabsorberende sideflader.For sound insulating mineral wool products, which must be self-supporting, it is e.g. possible to roll or otherwise compress the middle portion of the uncured mineral wool web, giving the finished, cured product a hard, rigid core with porous, sound-absorbing side surfaces.
Det integrerede, færdige mineraluldsprodukt kan være sammensat af dele, hvoraf de løseste har en densitet i om- 3 rådet fra 7-300 kg/m . Alt afhængig af den tilsigtede an- 35 vendelse vil denne del dog fortrinsvis være i området 20- .,3 180 kg/m .The integrated finished mineral wool product may be composed of parts, the loosest of which have a density in the range of 7-300 kg / m. However, depending on the intended use, this part will preferably be in the range of 20-, 3 180 kg / m.
Den faste, forkomprimerede del kan opnå en densitetThe solid, pre-compressed portion can achieve a density
DK 155163 BDK 155163 B
7 3 3 i området 20-600 kg/m , fortrinsvis 40-350 kg/m .7 3 3 in the range 20-600 kg / m, preferably 40-350 kg / m.
EksempelExample
En mineraluldsplade med en gennemsnitlig rumvægt på 5 83 kg/m blev fremstillet ved flækning af en mineraluldsba ne i to delbaner, hvoraf den ene, der senere blev komprimeret til opnåelse af en blivende sammentrykning, udgjorde 30% af højden af den samlede mineraluldsbane. Under komprimeringen blev delbanen sammenpresset til ca. 1/10 af dens 10 oprindelige tykkelse og derefter aflastet. De to delbaner blev derefter ført sammen og komprimeret til opnåelse af den ønskede færdige tykkelse og samtidig hærdet ved gen-nemblæsning med varm luft. Den opnåede mineraludsplade havde en i pladens tykkelse varierende rumvægt, der ved den 3 15 ene overflade udgjorde 138 kg/m , medens den ved den anden 3 overflade udgjorde 73 kg/m . Punkttrykstyrken var ca. 60% større ved den hårde overflade end for en plade med tilnærmelsesvis ensartet rumvægt gennem hele tykkelsen på 83 kg/m . En homogen plade med en tilsvarende forøget punkt-20 trykstyrke skulle have en med mere end 10 kg/m forøget rumvægt.A mineral wool plate having an average room weight of 5 83 kg / m was made by splicing a mineral wool web into two sub-lanes, one of which was later compressed to obtain a permanent compression, accounting for 30% of the height of the total mineral wool web. During compression, the subway was compressed to approx. 1/10 of its 10 original thickness and then unloaded. The two sub-lanes were then joined together and compressed to obtain the desired final thickness and at the same time cured by hot air recharge. The mineral plate obtained had a room weight varying in thickness of the plate at 138 kg / m at one surface, at 73 kg / m at the other 3 surface. The spot compressive strength was approx. 60% larger at the hard surface than for a plate of approximately uniform weight throughout the entire thickness of 83 kg / m. A homogeneous plate with a correspondingly increased point-20 compressive strength should have one with more than 10 kg / m increased room weight.
Claims (4)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK309886A DK155163B (en) | 1986-06-30 | 1986-06-30 | PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS |
| PCT/DK1987/000082 WO1988000265A1 (en) | 1986-06-30 | 1987-06-30 | Method for continuous production of mineral wool slabs |
| EP87904510A EP0271567A1 (en) | 1986-06-30 | 1987-06-30 | Method for continuous production of mineral wool slabs |
| FI880890A FI880890A (en) | 1986-06-30 | 1988-02-25 | FOERFARANDE FOER KONTINUERLIG FRAMSTAELLNING AV BERGULLSKIVOR. |
| NO880861A NO880861L (en) | 1986-06-30 | 1988-02-26 | PROCEDURE FOR THE MANUFACTURE OF MINERAL WOOL PRODUCTS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK309886 | 1986-06-30 | ||
| DK309886A DK155163B (en) | 1986-06-30 | 1986-06-30 | PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK309886D0 DK309886D0 (en) | 1986-06-30 |
| DK309886A DK309886A (en) | 1987-12-31 |
| DK155163B true DK155163B (en) | 1989-02-20 |
Family
ID=8119070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK309886A DK155163B (en) | 1986-06-30 | 1986-06-30 | PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0271567A1 (en) |
| DK (1) | DK155163B (en) |
| FI (1) | FI880890A (en) |
| WO (1) | WO1988000265A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991006407A1 (en) * | 1989-10-30 | 1991-05-16 | Rockwool Aktiebolaget | Method and apparatus for the manufacture of mineral wool plates |
| WO1999009270A1 (en) | 1997-08-18 | 1999-02-25 | Rockwool International A/S | Roof and wall cladding |
| WO2002042576A1 (en) * | 2000-11-24 | 2002-05-30 | Rockwool International A/S | A sound reducing board and a process for the manufacture of the board |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992013150A1 (en) * | 1991-01-28 | 1992-08-06 | Rockwool International A/S | Process for the manufacture of mineral-fibre plates capable of acting as plaster substrates, a device for carrying out the process, and mineral-fibre plate manufactured by the process |
| DE4225840C1 (en) * | 1992-08-05 | 1994-04-28 | Rockwool Mineralwolle | Process for producing mineral wool slabs and device for carrying out the process |
| DK3593D0 (en) * | 1993-01-14 | 1993-01-14 | Rockwool Int | A METHOD FOR PRODUCING A MINERAL FIBER INSULATING WEB, A PLANT FOR PRODUCING A MINERAL FIBER INSULATING WEB, AND A MINERAL FIBER INSULATED PLATE |
| DK3793D0 (en) * | 1993-01-14 | 1993-01-14 | Rockwool Int | A METHOD OF PRODUCING A MINERAL FIBER INSULATING WEB A PLANT FOR PRODUCING A MINERAL WEB, AND A MINERAL FIBER INSULATED PLATE |
| RU2152489C1 (en) * | 1994-01-28 | 2000-07-10 | Роквул Интернэшнл А/С | Method and apparatus for manufacture of hardened nonwoven fabric from mineral fiber |
| HU223013B1 (en) | 1996-03-25 | 2004-03-01 | Rockwool International A/S | Process and apparatus for the production of a mineral fibreboard |
| CH691960A5 (en) * | 1996-09-02 | 2001-12-14 | Flumroc Ag | Process and apparatus for producing mineral fibreboard |
| CH691816A5 (en) * | 1996-03-25 | 2001-10-31 | Flumroc Ag | Process and apparatus for producing mineral fibreboard |
| GB2317403B (en) * | 1996-09-20 | 2001-01-24 | Rockwool Int | A process for the preparation of a layered insulating board,and a layered insulating board |
| DK0886704T4 (en) † | 1996-12-23 | 2009-11-23 | Saint Gobain Isover | Insulation element for clamping installation between roof rafters or beams in other wood structures |
| DE69807331D1 (en) | 1997-06-13 | 2002-09-26 | Rockwool Ltd | FIRE PROTECTION ENCLOSURES FOR BUILDINGS |
| EP1064437B2 (en) † | 1998-03-19 | 2008-12-24 | Rockwool International A/S | Process and apparatus for preparation of a mineral fibre product. |
| NL1012302C2 (en) * | 1999-06-11 | 2000-12-12 | Rockwool Lapinus Bv | Improved cassette system. |
| DE19952931A1 (en) * | 1999-11-03 | 2001-05-10 | Saint Gobain Isover G & H Ag | Bound mineral wool product with fire protection function and fire protection element with the bound mineral wool product |
| CA2418025A1 (en) | 2000-09-04 | 2002-03-14 | Rockwool International A/S | A method of preparing a mineral fiber panel comprising one or more shaped cavities |
| EP1312714A1 (en) * | 2001-11-14 | 2003-05-21 | Rockwool International A/S | A vibration damping system |
| ES2292833T5 (en) † | 2001-11-14 | 2020-11-23 | Rockwool Int | Mineral fiber mats |
| ES2334776T5 (en) † | 2001-12-21 | 2014-03-06 | Rockwool International A/S | Mineral fiber blocks and their production |
| DE102005004504A1 (en) * | 2004-01-31 | 2005-09-15 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Thermal insulation panel, of mineral fibers and a bonding agent, has longitudinal and equidistant surface ribs at the large surfaces at the contact zones with the insulation |
| DE102005026656A1 (en) * | 2004-07-09 | 2006-02-02 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Production of a mineral fiber web with largely upright mineral fibers and use of the resulting waste |
| DE102005044052A1 (en) * | 2004-10-08 | 2006-05-04 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | module |
| CN102677446A (en) * | 2012-05-14 | 2012-09-19 | 陈浩 | Rock/mineral wool pleating device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE201411C1 (en) * | 1965-01-01 | |||
| DE832201C (en) * | 1949-02-17 | 1952-02-21 | Holzwerke Hans Wilhelmi | Fiber body |
| SE368949B (en) * | 1972-02-17 | 1974-07-29 | Rockwool Ab | |
| NL7612071A (en) * | 1976-10-29 | 1978-05-03 | Nederlandse Steenwolfabriek Nv | MINERAL WOOL ROOF COVERING PLATE. |
| SE441764B (en) * | 1982-10-11 | 1985-11-04 | Gullfiber Ab | Insulation sheet and method of producing similar |
-
1986
- 1986-06-30 DK DK309886A patent/DK155163B/en not_active Application Discontinuation
-
1987
- 1987-06-30 WO PCT/DK1987/000082 patent/WO1988000265A1/en not_active Application Discontinuation
- 1987-06-30 EP EP87904510A patent/EP0271567A1/en not_active Withdrawn
-
1988
- 1988-02-25 FI FI880890A patent/FI880890A/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991006407A1 (en) * | 1989-10-30 | 1991-05-16 | Rockwool Aktiebolaget | Method and apparatus for the manufacture of mineral wool plates |
| WO1999009270A1 (en) | 1997-08-18 | 1999-02-25 | Rockwool International A/S | Roof and wall cladding |
| WO2002042576A1 (en) * | 2000-11-24 | 2002-05-30 | Rockwool International A/S | A sound reducing board and a process for the manufacture of the board |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0271567A1 (en) | 1988-06-22 |
| FI880890A0 (en) | 1988-02-25 |
| FI880890A (en) | 1988-02-25 |
| DK309886D0 (en) | 1986-06-30 |
| WO1988000265A1 (en) | 1988-01-14 |
| DK309886A (en) | 1987-12-31 |
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