SE463547B - PROCEDURES FOR THE PREPARATION OF AN AGGLOMERATED SUBSTANCE OF TREE WASTE AND THERMOPLASTIC PLASTICS, AND APPLICATION THEREOF - Google Patents
PROCEDURES FOR THE PREPARATION OF AN AGGLOMERATED SUBSTANCE OF TREE WASTE AND THERMOPLASTIC PLASTICS, AND APPLICATION THEREOFInfo
- Publication number
- SE463547B SE463547B SE8900052A SE8900052A SE463547B SE 463547 B SE463547 B SE 463547B SE 8900052 A SE8900052 A SE 8900052A SE 8900052 A SE8900052 A SE 8900052A SE 463547 B SE463547 B SE 463547B
- Authority
- SE
- Sweden
- Prior art keywords
- plastic
- wood waste
- added
- agglomerate
- weight
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/28—Moulding or pressing characterised by using extrusion presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Description
465 547 10 15 20 25 30 35 2 Ännu ett ändamål med föreliggande uppfinning är att åstadkomma ett förfarande för framställning av ett agglo- merat, vilket enkelt och smidigt kan vidare bearbetas, genom t ex formsprutning, till olika produkter. Yet another object of the present invention is to provide a process for producing an agglomerate, which can be further and smoothly further processed, for example by injection molding, into various products.
Förfarandet enligt uppfinningen kännetecknas av att plasten sönderdelas i mindre fraktioner eller tillhandahålles i sönderdelad form, att den sönderdelade plasten finmales under frik- tionsuppvärmning, varvid plasten smälter, att, då plasten uppnått lämplig smältningsgrad, fuktigt träavfall tillsättes, varvid blandningen av plast och träavfall agglomereras, och att agglomeratet utvinnes.The process according to the invention is characterized in that the plastic is decomposed into smaller fractions or provided in disintegrated form, that the decomposed plastic is finely ground during frictional heating, whereby the plastic melts, that when the plastic has reached a suitable degree of melting, moist wood waste is added. , and that the agglomerate is recovered.
Agglomeratet enligt uppfinningen är avsett att an- vändas vid formsprutning, strängsprutning eller annan formning för framställning av olika produkter.The agglomerate according to the invention is intended for use in injection molding, extrusion or other molding for the production of various products.
Enligt uppfinningen tillhandahålles således ett förfarande för framställning av ett agglomerat av trä- avfall och plast, vilket som sådant sedan kan användas för formsprutning, eller liknande, av olika slutpro- dukter. Enligt föreliggande uppfinning utnyttjas fukten i träavfallet för att uppnå en agglomerering och genom inblandningen av träavfall vid själva agglomereringen erhålles en mycket homogen produkt.According to the invention, there is thus provided a process for producing an agglomerate of wood waste and plastic, which as such can then be used for injection molding, or the like, of various end products. According to the present invention, the moisture in the wood waste is utilized to achieve an agglomeration and by mixing wood waste in the agglomeration itself, a very homogeneous product is obtained.
Det erhållna agglomeratet gör vidare formsprutnings- förfarandet enklare och mera ekonomiskt än tidigare.The resulting agglomerate also makes the injection molding process simpler and more economical than before.
Detaljerad beskrivning av uppfinningen Vid förfarandet enligt uppfinningen utnyttjas en agglomerator eller annan agglomereringsanordning. En agglomerator består i princip av en stående cylindrisk behållare med snabbt roterande knivar i botten och even- tuellt fast monterade knivar i cylinderväggarna. Agglo- 9 meratorn matas från toppen och tömmes från botten. Exem- pel på agglomeratorer är de som tillhandahålles av REG-MAC * s.r.l., Legnano, Italien. 10 15 20 25 30 35 3 463 547 Plastfilmen matas manuellt ner i den cylindriska behållaren, i vilken den snabbt roterande knivsatsen skär plasten i strimlor samtidigt som plasten slungas mot periferin av behållaren. Knivarnas och även plast- partiklarnas rotation skapar friktionsvärme och när materialet har snitslats ner till en viss storlek stiger temperaturen så pass att materialet börjar smälta.Detailed description of the invention In the process according to the invention, an agglomerator or other agglomeration device is used. An agglomerator basically consists of a standing cylindrical container with rapidly rotating knives in the bottom and possibly permanently mounted knives in the cylinder walls. The agglomerator is fed from the top and emptied from the bottom. Examples of agglomerators are those provided by REG-MAC * s.r.l., Legnano, Italy. 10 15 20 25 30 35 3 463 547 The plastic film is manually fed into the cylindrical container, in which the rapidly rotating knife set cuts the plastic into strips at the same time as the plastic is thrown towards the periphery of the container. The rotation of the knives and also the plastic particles creates frictional heat and when the material has been cut down to a certain size, the temperature rises so much that the material begins to melt.
Nu tillföres det fuktiga träavfallet. Genom vattnet i träavfallet avbryts smältprocessen, varvid den upp- hettade plasten avkyles och drar ihop sig till s k agglo- merat; dvs träavfall och plasten agglomereras. Genom denna avkylning samt genom knivarnas fortsatta rotation förångas vattnet i träavfallet och avgår i form av vatten- ånga. Resultatet blir att träavfallet torkas och blandas väl in i plasten. Träavfallet inneslutes till stor del i agglomeratpartiklarna, vilket ger en mycket homogen och lagringsstabil produkt.Now the damp wood waste is added. Through the water in the wood waste, the melting process is interrupted, whereby the heated plastic cools and contracts into a so-called agglomerate; ie wood waste and the plastic are agglomerated. Through this cooling and through the continued rotation of the knives, the water in the wood waste evaporates and escapes in the form of water vapor. The result is that the wood waste is dried and mixed well into the plastic. The wood waste is largely enclosed in the agglomerate particles, which gives a very homogeneous and storage-stable product.
Plastens smältningsgrad kan t ex avgöras okulärt genom påmatningsöppningen i toppen av behållaren. Den tid som åtgår för processen bestämmes av den mängd fukt som skall förångas ur träavfallet och mängden fukt som skall förångas bestämmes i sin tur bl a av hela sat- sens storlek, blandningsförhållanden mellan sågspån och plast och spånets fukthalt. Storlek och utseende på agglomeratet beror bl a på vilken temperatur plasten har då det fuktiga träavfallet tillsättes, samt på typ av plast och tillsatser.The degree of melting of the plastic can, for example, be determined ocularly through the feed opening in the top of the container. The time required for the process is determined by the amount of moisture to be evaporated from the wood waste and the amount of moisture to be evaporated is in turn determined by the size of the whole batch, mixing ratios between sawdust and plastic and the moisture content of the chips. The size and appearance of the agglomerate depends, among other things, on the temperature of the plastic when the moist wood waste is added, as well as on the type of plastic and additives.
Beredningsgraden och torrhalten på blandningen kan avgöras okulärt. När luften i behållaren bedöms såsom lagom torr, lämpligen när synlig ånga avgått, uttömmes blandningen, varvid den genom centrifugalkraften slungas ut genom utmatningsöppningen hos agglomeratorn till en mottagningsbehållare. Från denna transporteras blandningen till en lagringssilo. Agglomeratet är där- efter färdigt att användas vid formsprutning eller annan formning av diverse produkter. Alternativt kan naturligt- 463 547 10 15 20 25 30 35 4 vis agglomeratet transporteras direkt till en formsprut- maskin eller dylikt.The degree of preparation and the dry content of the mixture can be determined ocularly. When the air in the container is judged to be reasonably dry, preferably when visible steam has escaped, the mixture is discharged, whereby it is ejected by the centrifugal force through the discharge opening of the agglomerator to a receiving container. From this the mixture is transported to a storage silo. The agglomerate is then ready for use in injection molding or other molding of various products. Alternatively, the agglomerate can of course be transported directly to an injection molding machine or the like.
Träavfallet som kan användas enligt uppfinningen är t ex sågspån, trämjöl, hyvelspån eller träflis eller en blandning därav. Träavfallet bör ha en partikelstor- lek av 0,02-10 mm och företrädesvis 2-3 mm. Ett lämp- ligt träavfall är sågspån.The wood waste that can be used according to the invention is, for example, sawdust, wood flour, planer shavings or wood chips or a mixture thereof. The wood waste should have a particle size of 0.02-10 mm and preferably 2-3 mm. A suitable wood waste is sawdust.
Träavfallet kan t ex vara sågspån från ett sågverk eller annan träbearbetande industri.The wood waste can, for example, be sawdust from a sawmill or other wood processing industry.
Vid agglomereringen bör träavfallet ha en fukthalt av 5-45 vikt%, lämpligen 10-40 vikt% och allra helst 15-25 vikt%. Den enligt uppfinningen utnyttjade plasten är en termoplastisk plast, såsom HD-, LD-, MD-polyeten, polypropen eller PVC, eller blandningar därav. En före- dragen termoplastisk plast är polyeten.During agglomeration, the wood waste should have a moisture content of 5-45% by weight, preferably 10-40% by weight and most preferably 15-25% by weight. The plastic used according to the invention is a thermoplastic plastic, such as HD, LD, MD polyethylene, polypropylene or PVC, or mixtures thereof. A preferred thermoplastic plastic is polyethylene.
Agglomeratet enligt uppfinningen kan innehålla 5-90 vikt% plast och 95-10 vikt% träavfall, lämpligen 40-60 vikt% plast och 60-40 vikt% träavfall.The agglomerate according to the invention may contain 5-90% by weight of plastic and 95-10% by weight of wood waste, suitably 40-60% by weight of plastic and 60-40% by weight of wood waste.
Den plast som utnyttjas kan med fördel utgöras av avfallsråvara av blandad kvalitet och varierande renhet. Detta är en produkt som idag ofta går till de- struktion eller deponeras.The plastic used can advantageously consist of waste raw material of mixed quality and varying purity. This is a product that today is often destroyed or disposed of.
Konventionella plasttillsatsmedel, såsom mjukgörare mm kan tillsättas eller ingå i den plastråvara som ut- nyttjas. å Agglomeratets användningsområden är form- och sträng- sprutade produkter, t ex listverk inom möbel- och trä- bearbetande industrier, och bobin/hylstillverkning.Conventional plastic additives, such as plasticizers, etc. can be added or included in the plastic raw material used. å The agglomerate's areas of use are molded and extruded products, such as moldings in the furniture and woodworking industries, and bobbin / sleeve production.
Agglomeratet enligt uppfinningen kan utnyttjas som sådant eller bearbetas till ett granulat.The agglomerate according to the invention can be used as such or processed into a granulate.
Produkter formade av agglomeratet som sådant eller därav framställt granulat enligt uppfinningen kan inom möbel- och träbearbetande industrin ersätta delar av trä- eller spånskivedetaljer och därmed inom detta om- råde minska problemet med avgasning från fenollimmer etc, samt ger genom sin spänst och böjlighet väsentliga fördelar i formgivningshänseende. 10 15 20 25 30 5 4ßs 547 Genom att en produkt tillverkad av agglomeratet enligt uppfinningen är fuktavvisande kan den utnyttjas vid tillverkning av bobiner/hylsor och t ex fönster- bågar, vilket ger väsentliga fördelar vad gäller lag- ringsmöjligheter och väderbeständighet.Products formed from the agglomerate as such or granules according to the invention produced therefrom can in the furniture and woodworking industry replace parts of wood or chipboard details and thus in this area reduce the problem of degassing from phenolic glue etc. in terms of design. Because a product made from the agglomerate according to the invention is moisture-repellent, it can be used in the manufacture of bobbins / sleeves and, for example, window frames, which provides significant advantages in terms of storage possibilities and weather resistance.
En produkt formad av agglomeratet enligt uppfin- ningen kan lackbehandlas, limmas och genomfärgas. Den kan även bearbetas i kända träbearbetningsmaskiner.A product formed from the agglomerate according to the invention can be varnished, glued and dyed. It can also be machined in known woodworking machines.
Den är formbar efter upphettning och är formstabil efter avkylning.It is malleable after heating and is dimensionally stable after cooling.
Nedan följer ett antal icke begränsande exempel som belyser förfarandet enligt uppfinningen.The following are a number of non-limiting examples which illustrate the process of the invention.
Exempel l 50 kg LD-polyetenfilm, av kvalitet returvara, satsas i en agglomerator med beteckning REG-MAC 430T, tillhanda- hàllen av REG-MAX s.r.l., Legnano, Italien. Polyeten- filmen males ner under ca 4 min i agglomeratorn och plasten har då en temperatur av ca l25°C. Nu tillsättes 50 kg sågspån, av kvalitet klyvsågspån, 3 mm, med en fukthalt av 20%. Denna blandning agglomereras i agglome- ratorn under 2-3 min tills ingen synbar ånga avges från agglomeratorn. Därefter matas det färdiga agglomeratet ut och dess sluttemperatur är 80°C.Example 1 50 kg of LD polyethylene film, of recyclable quality, is charged to an agglomerator designated REG-MAC 430T, supplied by REG-MAX s.r.l., Legnano, Italy. The polyethylene film is ground down for about 4 minutes in the agglomerator and the plastic then has a temperature of about 125 ° C. Now add 50 kg of sawdust, of quality split sawdust, 3 mm, with a moisture content of 20%. This mixture is agglomerated in the agglomerator for 2-3 minutes until no visible steam is emitted from the agglomerator. Then the finished agglomerate is discharged and its final temperature is 80 ° C.
Exempel 2 50 kg polypropen satsas i en agglomerator som är identisk med den som anges i exempel 1 och plasten males under 5 min. Propenplasten har nu en temperatur av ca l30°C. Nu tillsättes 60 kg trämjöl, 25 mesh, med en fukthalt av 20% och denna blandning agglomereras under 3 min. Det slutliga agglomeratet matas därefter ut och det har en temperatur av 80°C.Example 2 50 kg of polypropylene are charged into an agglomerator identical to that given in Example 1 and the plastic is ground for 5 minutes. The propylene plastic now has a temperature of about 130 ° C. Now 60 kg of wood flour, 25 mesh, with a moisture content of 20% are added and this mixture is agglomerated for 3 minutes. The final agglomerate is then discharged and has a temperature of 80 ° C.
Claims (10)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8900052A SE463547B (en) | 1989-01-10 | 1989-01-10 | PROCEDURES FOR THE PREPARATION OF AN AGGLOMERATED SUBSTANCE OF TREE WASTE AND THERMOPLASTIC PLASTICS, AND APPLICATION THEREOF |
EP19900901703 EP0473580A1 (en) | 1989-01-10 | 1990-01-10 | Process of producing a wood-plastic agglomerate and use thereof |
PCT/SE1990/000014 WO1990008020A1 (en) | 1989-01-10 | 1990-01-10 | Process of producing a wood-plastic agglomerate and use thereof |
AU48364/90A AU4836490A (en) | 1989-01-10 | 1990-01-10 | Process of producing a wood-plastic agglomerate and use thereof |
FI913317A FI913317A0 (en) | 1989-01-10 | 1991-07-09 | FOERFARANDE FOER FRAMSTAELLNING AV TRAE-PLAST-AGGLOMERAT, SAMT ANVAENDNING DAERAV. |
NO91912691A NO912691L (en) | 1989-01-10 | 1991-07-09 | PROCEDURE FOR THE PREPARATION OF A TREE PLASTIC AGGLOMERATOGUE USING THEREOF. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8900052A SE463547B (en) | 1989-01-10 | 1989-01-10 | PROCEDURES FOR THE PREPARATION OF AN AGGLOMERATED SUBSTANCE OF TREE WASTE AND THERMOPLASTIC PLASTICS, AND APPLICATION THEREOF |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8900052D0 SE8900052D0 (en) | 1989-01-10 |
SE8900052A SE8900052A (en) | 1989-01-10 |
SE463547B true SE463547B (en) | 1990-12-10 |
Family
ID=20374697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8900052A SE463547B (en) | 1989-01-10 | 1989-01-10 | PROCEDURES FOR THE PREPARATION OF AN AGGLOMERATED SUBSTANCE OF TREE WASTE AND THERMOPLASTIC PLASTICS, AND APPLICATION THEREOF |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0473580A1 (en) |
AU (1) | AU4836490A (en) |
FI (1) | FI913317A0 (en) |
SE (1) | SE463547B (en) |
WO (1) | WO1990008020A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI892833A (en) * | 1989-06-08 | 1990-12-09 | Woodfoot Oy | FOERFARANDE FOER TILLVERKNING AV PRESSTYCKEN. |
US5075057A (en) * | 1991-01-08 | 1991-12-24 | Hoedl Herbert K | Manufacture of molded composite products from scrap plastics |
US5406768A (en) * | 1992-09-01 | 1995-04-18 | Andersen Corporation | Advanced polymer and wood fiber composite structural component |
DE4415851A1 (en) * | 1994-05-05 | 1995-11-09 | Ljudmila Olegovna Dr In Bunina | Wood chip prods. useful for prodn. of e.g. chipboard for high strength |
ATE179740T1 (en) * | 1994-10-31 | 1999-05-15 | Tower Technologies Proprietary | METHOD FOR PRODUCING A LIGNOCELLULOSE MATERIAL SUITABLE FOR PRODUCING A FINISHED PRODUCT |
US7713460B2 (en) | 1995-04-27 | 2010-05-11 | Tech-Wood International Ltd. | Method and apparatus for manufacturing of plastic-based composite product |
GB2309699A (en) * | 1996-02-02 | 1997-08-06 | Ecobloc Ltd | Constructional materials containing plastics and waste naterial |
US6344504B1 (en) * | 1996-10-31 | 2002-02-05 | Crane Plastics Company Limited Partnership | Extrusion of synthetic wood material |
WO2001021367A1 (en) * | 1999-09-22 | 2001-03-29 | Sd-Konsult Stein Fr. Dietrichson | Construction material comprising recycled pvb (polyvinyl butyral) |
US6585452B1 (en) * | 2002-06-27 | 2003-07-01 | Rexius Forest By-Products, Inc. | Organic composition for erosion control and barrier formation |
US8074339B1 (en) | 2004-11-22 | 2011-12-13 | The Crane Group Companies Limited | Methods of manufacturing a lattice having a distressed appearance |
US8167275B1 (en) | 2005-11-30 | 2012-05-01 | The Crane Group Companies Limited | Rail system and method for assembly |
US7913960B1 (en) | 2007-08-22 | 2011-03-29 | The Crane Group Companies Limited | Bracketing system |
US20090321981A1 (en) | 2008-01-15 | 2009-12-31 | RheTech, Inc. | Cellulosic inclusion thermoplastic composition and molding thereof |
FI130823B1 (en) * | 2016-05-30 | 2024-04-08 | Wimao Oy | Method and apparatus for processing a starting material |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB984170A (en) * | 1962-06-21 | 1965-02-24 | Conway Dolman Ltd | Improvements in or relating to chipboard |
US3671615A (en) * | 1970-11-10 | 1972-06-20 | Reynolds Metals Co | Method of making a composite board product from scrap materials |
-
1989
- 1989-01-10 SE SE8900052A patent/SE463547B/en not_active IP Right Cessation
-
1990
- 1990-01-10 EP EP19900901703 patent/EP0473580A1/en not_active Withdrawn
- 1990-01-10 WO PCT/SE1990/000014 patent/WO1990008020A1/en not_active Application Discontinuation
- 1990-01-10 AU AU48364/90A patent/AU4836490A/en not_active Abandoned
-
1991
- 1991-07-09 FI FI913317A patent/FI913317A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO1990008020A1 (en) | 1990-07-26 |
SE8900052D0 (en) | 1989-01-10 |
EP0473580A1 (en) | 1992-03-11 |
AU4836490A (en) | 1990-08-13 |
FI913317A0 (en) | 1991-07-09 |
SE8900052A (en) | 1989-01-10 |
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