WO2002034489A1 - Strangpresse für mit bindemittel vermengte pflanzliche kleinteile - Google Patents
Strangpresse für mit bindemittel vermengte pflanzliche kleinteile Download PDFInfo
- Publication number
- WO2002034489A1 WO2002034489A1 PCT/EP2001/009150 EP0109150W WO0234489A1 WO 2002034489 A1 WO2002034489 A1 WO 2002034489A1 EP 0109150 W EP0109150 W EP 0109150W WO 0234489 A1 WO0234489 A1 WO 0234489A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strand
- extrusion
- walls
- station
- section
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/26—Extrusion presses; Dies therefor using press rams
Definitions
- the invention relates to an extrusion press for small vegetable components mixed with binder, in particular from wood waste, in which the extrusion piston is pushed intermittently through a recipient and a curing channel.
- Wood products are common and wood waste from glue factories is available in sufficient quantities.
- Chips of higher moisture cause a rapid increase in the feed pressure, which leads to the press becoming stuck within a few strokes of the extrusion piston.
- Chip material shows different elastoplastic behavior with higher humidity. While dry chip is practically non-flowable (so-called non-rising mixture) and thus only a small part of the pressure is diverted from the main piston to the duct wall, the material reacts more and more plastically with increasing moisture. At the same feed pressure, the material compresses more and the pressure on the side walls of the recipient increases. This means that in the following stroke, more feed force is necessary to increase the higher
- the object is achieved in that for the extrusion of small parts of higher humidity of, for example, 8% to 14% atroot, the walls of the first section of the curing channel following the recipient are arranged to avoid friction during the advance of the extrusion piston.
- the walls of the first section of the curing duct are rigidly arranged.
- An exact shaping of the strand is thereby achieved, while a "pressing skin" already forms in the edge zone of the strand due to the action of heat.
- the strength of the edge zone of the strand is sufficient to hold the shape when it enters the moveable heating aisles. If, on the other hand, wood waste of higher humidity is used, the strand blocks in the area of this preheating.
- the walls of the first section of the curing duct following the recipient are arranged so as to be able to evade in a friction-reducing manner, for which purpose several design options are available. For example, the walls can be kept constant
- Contact pressure should be supported resiliently. But you can also connect the walls to form a radial press station with cyclically controllable lifting drives.
- Preheating which is provided with rigid walls according to the prior art, by which it is to be replaced according to the radial pressing station. On the other hand, it also makes sense to replace the preheating cycle with an arrangement with evasive walls and the
- the movable side walls of the radial press station are suspended via hydraulic cylinders, which in turn can be connected to a pressure accumulator.
- the pressure is reduced to a certain level and held by the pressure accumulator. This means that the walls of the radial press station lie on the product strand with constant force.
- the higher wall pressure of the product breaks down to the preset level by evading the wall.
- the pressure accumulator acts like a gas spring and the restoring force remains approximately the same.
- the strand On the return stroke of the main piston, the strand is in the
- the accumulator is pushed off and the hydraulic pressure is increased to such an extent that the strand part located in the radial press station is pressed to a preset undersize.
- the pressure level is lowered again and the accumulator switched on.
- the strand of material springs back to the nominal size. In this way, the elastic expansion tendency of the strand material is absorbed.
- the pressing force of the side walls can be dimensioned such that the elastic resilience of the strand material leads to the desired friction and that there is no longer any dimensional change in the subsequent movable heating cycles.
- the so-called preheating cycle that is the first section of the curing duct following the recipient, is provided with rigid walls. There the desired cross-sectional shape is conveyed to the strand.
- Another object of the invention provides a work station for applying saturated steam to the outer surface of the pressed strand, in which sealing means, in particular pressing jaws, are arranged along the strand surface in order to avoid the escape of steam.
- a work station has been proposed by the older PCT / EP 00/06872.
- their use is not intended for pressing chips of higher moisture.
- the supply of saturated steam to the strand which is also preferably carried out in a cyclical fashion, produces an intensive warming of the strand, with the result that the binding of the binder takes place suddenly and the hardening of the strand takes place more quickly than hitherto.
- Radial press station is integrated.
- the same functional elements occur in both stations for different reasons, namely to exert pressure radially from the outside on the strand which has not yet hardened or only in the edge zone and thus to bring about a slight deformation. It is therefore expedient, according to the invention, to use the device required to control the friction conditions to supply steam.
- the aforementioned radial press station is heated by a suitable heat transfer medium anyway and the surface pressure required to produce the final outer contour is sufficient to ensure the sealing of the press jaws against the escape of the process steam.
- An extrusion press constructed in this way is extremely short and only needs a shortened one after the combined radial press / steam supply station
- the length of the heating aisle which keeps the material clamped until the glue reaction is completed so that the material residual stresses of the compressed product no longer lead to changes in shape.
- the wall friction conditions can be controlled precisely.
- the work station for applying saturated steam can also be arranged in the area of the heating passage of the curing duct, in which temperature increases in the edge zone of the strand are effected in a conventional manner.
- Figure 1 a vertical section through a
- FIG. 2 a vertical section through a variant according to FIG. 1 with a radial press station integrated in the first section,
- Figure 3 a vertical section through a
- Figure 4 a vertical section through a
- Extrusion press according to Figure 2 with an integrated work station for applying saturated steam in a radial press station.
- an extrusion press (1) is shown schematically, in which an extrusion piston (3) can be moved back and forth in the horizontal direction.
- This extrusion piston (3) forms an extrusion (2), which is pressed through a recipient (4) and a curing channel (6).
- the recipient (4) consists of rigid walls with an opening angle (7) that widens in the direction of extrusion.
- This opening angle (7) can be larger than in conventional systems when it comes to pressing strands of small plant parts, in particular wood, with higher moisture.
- a first section (5) of the curing channel (6) which in conventional extrusion systems generally consists of rigid walls and is referred to as a preheating cycle.
- the invention therefore provides for the walls (8) of this first section (5) of the curing channel (6) to be designed to be evasive, which can be done, for example, by spring-supported walls (8).
- the radial pressing station (5 ') is integrated in the first section of the curing channel (6).
- a curing channel (6) extends, which is equipped with heating lines (15) in a conventional manner in order to bring about the curing and drying of the strand (2).
- the formation of such a curing channel is already known and therefore does not require any further description.
- FIG. 3 it is shown how the strand (2) can be warmed with the aid of saturated steam and can therefore be set more quickly.
- Work station (10) for applying saturated steam through steam supply holes (14).
- the work station (10) has pressing jaws (13) which are pressed against the strand (2) with the aid of the lifting motors (11).
- a braking and cooling zone (16) which is intended to prevent the uncontrolled expansion of the not yet fully cured strand, is arranged downstream of the steam supply station.
- FIG. 4 shows that the functions of the radial pressing station (5 ') and the steam supply station (10) can also be combined.
- This arrangement complements the radial press station (5 ') with the units for steam metering and feeding. Pressing the pressing jaws (13) leads to a contractive strand deformation, in order to thereby produce the final external dimensions of the strand (2). It is essential that this deformation is used to prevent the steam supplied from evading along the strand (2).
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Glanulating (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- General Preparation And Processing Of Foods (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01958060A EP1328384B1 (de) | 2000-10-26 | 2001-08-08 | Strangpresse für mit bindemittel vermengte pflanzliche kleinteile |
PL360784A PL200466B1 (pl) | 2000-10-26 | 2001-08-08 | Wytłaczarka dla cząstek roślinnych zmieszanych ze środkiem wiążącym |
EEP200300176A EE200300176A (et) | 2000-10-26 | 2001-08-08 | Ekstruuder sideainega segatud taimeosakeste töötlemiseks |
SK491-2003A SK286200B6 (sk) | 2000-10-26 | 2001-08-08 | Pretláčací lis na rastlinné častice zmiešané so spojivami |
DE50109829T DE50109829D1 (de) | 2000-10-26 | 2001-08-08 | Strangpresse für mit bindemittel vermengte pflanzliche kleinteile |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20018347.8 | 2000-10-26 | ||
DE20018347U DE20018347U1 (de) | 2000-10-26 | 2000-10-26 | Strangpresse für mit Bindemittel vermengte pflanzliche Kleinteile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002034489A1 true WO2002034489A1 (de) | 2002-05-02 |
Family
ID=7948119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/009150 WO2002034489A1 (de) | 2000-10-26 | 2001-08-08 | Strangpresse für mit bindemittel vermengte pflanzliche kleinteile |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1328384B1 (de) |
AT (1) | ATE326321T1 (de) |
CZ (1) | CZ298496B6 (de) |
DE (2) | DE20018347U1 (de) |
DK (1) | DK1328384T3 (de) |
EE (1) | EE200300176A (de) |
ES (1) | ES2262670T3 (de) |
PL (1) | PL200466B1 (de) |
PT (1) | PT1328384E (de) |
SK (1) | SK286200B6 (de) |
WO (1) | WO2002034489A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752267A2 (de) | 2005-08-10 | 2007-02-14 | Anton Heggenstaller GmbH | Herstellverfahren für Strangpressprodukte und Strangpresse |
DE102006055116A1 (de) * | 2006-11-21 | 2008-05-29 | Anton Heggenstaller Gmbh | Verfahren und Strangpressanlage zum Herstellen von Strangpressprodukten |
EP1925413A3 (de) * | 2006-11-21 | 2009-04-01 | Anton Heggenstaller GmbH | Verfahren und Strangpressanlage zum Herstellen von Strangpressprodukten |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10316119B4 (de) * | 2003-04-09 | 2011-08-11 | Schedlbauer, Karl, 86570 | Verfahren und Vorrichtung zur Herstellung eines Strangpressprofiles |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1184838A (fr) * | 1956-10-18 | 1959-07-27 | Coal Industry Patents Ltd | Procédé et appareil d'extrudage |
DE2535989A1 (de) * | 1975-08-12 | 1977-02-24 | Anton Heggenstaller | Vorrichtung zum aushaerten stranggepresster koerper |
DE3205866A1 (de) * | 1982-02-18 | 1983-09-29 | Heggenstaller, Anton, 8892 Kühbach | Vorrichtung zum aushaerten strang- oder formgepresster koerper aus mit bindemittel vermengten pflanzlichen kleinteilen |
DE3215693A1 (de) * | 1982-04-27 | 1983-10-27 | Andreas Peter Istvan 8035 Gauting Pöhl | Vorrichtung zur herstellen von gepressten formkoerpern |
DE3814082A1 (de) * | 1988-04-26 | 1989-11-09 | Karl Schedlbauer | Verfahren und vorrichtung zum steuern der verdichtung beim strangpressen von kleinteilen, insbesondere holzkleinteilen, mit bindemitteln |
DE4342678A1 (de) * | 1993-12-15 | 1995-06-22 | Karl Schedlbauer | Strang- oder strangrohrgepreßte Formteile, insbesondere Platten |
DE4444353A1 (de) * | 1993-12-15 | 1996-06-20 | Karl Schedlbauer | Verfahren und Vorrichtung zur Herstellung von Röhrenplatten und Streifen, mit besonders geringer Verdichtung, aus Kleinteilen mit Bindemitteln |
WO1999048659A1 (de) * | 1998-03-25 | 1999-09-30 | Karl Schedlbauer | Verfahren und vorrichtung zur herstellung eines profilmateriales |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2016771A1 (en) | 1970-04-08 | 1971-10-21 | Nikex Nehezipari Külkererskedelmi, Vallalat, Budapest | Continuous heat treatment for wood chip panels |
HU181873B (en) | 1978-08-22 | 1983-11-28 | Egyt Gyogyszervegyeszeti Gyar | Plant growth regulating and/or insecticide composition containing 2-/propagyl-oxy-imino/-1,7,7-trimethyl-byciclo/2.2.1/heptane further process for preparing the active suastance |
DE2932406C2 (de) * | 1979-08-09 | 1983-06-23 | Anton 8892 Kühbach Heggenstaller | Verfahren und Vorrichtungen zum Strangpressen eines Gemenges auf pflanzlichen Kleinteilen und Bindemitteln |
DE3222113C2 (de) * | 1982-06-11 | 1986-12-04 | Anton 8892 Kühbach Heggenstaller | Verfahren und Vorrichtung zur Steigerung der Biegefestigkeit von Strangpreßerzeugnissen aus Gemischen von pflanzlichen Kleinteilen und Bindemitteln |
DE3844192A1 (de) * | 1988-12-29 | 1990-07-05 | Karl Schedlbauer | Verfahren und vorrichtung zur steuerung der verdichtung und/oder zur erzeugung einer hoeher verdichteten randzone mit verbesserter oberflaeche beim strangpressen von kleinteilen, insbesondere pflanzlichen kleinteilen mit bindemitteln |
DE4117659C2 (de) | 1991-05-29 | 1996-05-02 | Karl Schedlbauer | Vorrichtung zum dosierten Einbringen eines Gemenges aus Kleinteilen, insbesondere pflanzlicher Kleinteile in den Füll- und Preßraum einer Strang- oder Strangrohrpresse |
US5484276A (en) * | 1992-11-20 | 1996-01-16 | Takeda Chemical Industries, Ltd. | Curing apparatus for molding compound |
DE19826408A1 (de) | 1998-06-15 | 1999-12-23 | Karl Schedlbauer | Verfahren und Vorrichtung zur Strangaushärtung beim Strangrohrpressen von Kleinteilen |
DE19830542A1 (de) | 1998-03-25 | 1999-09-30 | Karl Schedlbauer | Verfahren und Vorrichtung zur Leistungssteigerung, zur Verbesserung der Biegefestigkeit, der Steuerung der Verdichtung und zur Längsorientierung der Kleinteile beim Strang- und Strangrohrpressen von flächigen Kleinteilen |
DE19838187A1 (de) | 1998-08-24 | 2000-08-31 | Schedlbauer Karl | Verfahren und Vorrichtung zum kontinuierlichen Strang- und Strangrohrpressen von Kleinteilen |
DE29815669U1 (de) * | 1998-09-01 | 1999-09-23 | Heggenstaller Anton Ag | Strangpresse für die Verarbeitung von mit Bindemitteln vermengten pflanzlichen Kleinteilen |
DE19908315C1 (de) * | 1999-02-26 | 2000-03-16 | Heggenstaller Anton Ag | Verfahren zum Strangpressen von pflanzlichen Kleinteilen |
DE29912822U1 (de) * | 1999-07-22 | 2000-08-17 | Heggenstaller Anton Ag | Strangpresse für pflanzliche Kleinteile |
-
2000
- 2000-10-26 DE DE20018347U patent/DE20018347U1/de not_active Expired - Lifetime
-
2001
- 2001-08-08 DE DE50109829T patent/DE50109829D1/de not_active Expired - Lifetime
- 2001-08-08 PT PT01958060T patent/PT1328384E/pt unknown
- 2001-08-08 ES ES01958060T patent/ES2262670T3/es not_active Expired - Lifetime
- 2001-08-08 DK DK01958060T patent/DK1328384T3/da active
- 2001-08-08 EE EEP200300176A patent/EE200300176A/xx unknown
- 2001-08-08 WO PCT/EP2001/009150 patent/WO2002034489A1/de active IP Right Grant
- 2001-08-08 EP EP01958060A patent/EP1328384B1/de not_active Expired - Lifetime
- 2001-08-08 SK SK491-2003A patent/SK286200B6/sk not_active IP Right Cessation
- 2001-08-08 CZ CZ20031147A patent/CZ298496B6/cs not_active IP Right Cessation
- 2001-08-08 AT AT01958060T patent/ATE326321T1/de active
- 2001-08-08 PL PL360784A patent/PL200466B1/pl unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1184838A (fr) * | 1956-10-18 | 1959-07-27 | Coal Industry Patents Ltd | Procédé et appareil d'extrudage |
DE2535989A1 (de) * | 1975-08-12 | 1977-02-24 | Anton Heggenstaller | Vorrichtung zum aushaerten stranggepresster koerper |
DE3205866A1 (de) * | 1982-02-18 | 1983-09-29 | Heggenstaller, Anton, 8892 Kühbach | Vorrichtung zum aushaerten strang- oder formgepresster koerper aus mit bindemittel vermengten pflanzlichen kleinteilen |
DE3215693A1 (de) * | 1982-04-27 | 1983-10-27 | Andreas Peter Istvan 8035 Gauting Pöhl | Vorrichtung zur herstellen von gepressten formkoerpern |
DE3814082A1 (de) * | 1988-04-26 | 1989-11-09 | Karl Schedlbauer | Verfahren und vorrichtung zum steuern der verdichtung beim strangpressen von kleinteilen, insbesondere holzkleinteilen, mit bindemitteln |
DE4342678A1 (de) * | 1993-12-15 | 1995-06-22 | Karl Schedlbauer | Strang- oder strangrohrgepreßte Formteile, insbesondere Platten |
DE4444353A1 (de) * | 1993-12-15 | 1996-06-20 | Karl Schedlbauer | Verfahren und Vorrichtung zur Herstellung von Röhrenplatten und Streifen, mit besonders geringer Verdichtung, aus Kleinteilen mit Bindemitteln |
WO1999048659A1 (de) * | 1998-03-25 | 1999-09-30 | Karl Schedlbauer | Verfahren und vorrichtung zur herstellung eines profilmateriales |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752267A2 (de) | 2005-08-10 | 2007-02-14 | Anton Heggenstaller GmbH | Herstellverfahren für Strangpressprodukte und Strangpresse |
EP1752267A3 (de) * | 2005-08-10 | 2008-02-13 | Anton Heggenstaller GmbH | Herstellverfahren für Strangpressprodukte und Strangpresse |
DE102006055116A1 (de) * | 2006-11-21 | 2008-05-29 | Anton Heggenstaller Gmbh | Verfahren und Strangpressanlage zum Herstellen von Strangpressprodukten |
EP1925413A3 (de) * | 2006-11-21 | 2009-04-01 | Anton Heggenstaller GmbH | Verfahren und Strangpressanlage zum Herstellen von Strangpressprodukten |
EP2425947A2 (de) | 2006-11-21 | 2012-03-07 | Anton Heggenstaller GmbH | Strangpresseinrichtung |
EP2425947A3 (de) * | 2006-11-21 | 2012-11-14 | Anton Heggenstaller GmbH | Strangpresseinrichtung |
DE102006055116B4 (de) * | 2006-11-21 | 2013-10-17 | Anton Heggenstaller Gmbh | Verfahren und Strangpressanlage zum Herstellen von Strangpressprodukten |
DE202007019636U1 (de) | 2006-11-21 | 2014-09-25 | Pfeifer Holz Gmbh | Strangpressanlage zum Herstellen von Strangpressprodukten |
Also Published As
Publication number | Publication date |
---|---|
ES2262670T3 (es) | 2006-12-01 |
SK286200B6 (sk) | 2008-05-06 |
EE200300176A (et) | 2003-06-16 |
DE20018347U1 (de) | 2001-10-31 |
PL200466B1 (pl) | 2009-01-30 |
CZ298496B6 (cs) | 2007-10-17 |
PL360784A1 (en) | 2004-09-20 |
DK1328384T3 (da) | 2006-09-18 |
EP1328384B1 (de) | 2006-05-17 |
EP1328384A1 (de) | 2003-07-23 |
DE50109829D1 (de) | 2006-06-22 |
PT1328384E (pt) | 2006-10-31 |
SK4912003A3 (en) | 2003-09-11 |
ATE326321T1 (de) | 2006-06-15 |
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