EP1232047B1 - Verfahren und vorrichtung zur behandlung von holz und holzmaterialen - Google Patents

Verfahren und vorrichtung zur behandlung von holz und holzmaterialen Download PDF

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Publication number
EP1232047B1
EP1232047B1 EP00981456A EP00981456A EP1232047B1 EP 1232047 B1 EP1232047 B1 EP 1232047B1 EP 00981456 A EP00981456 A EP 00981456A EP 00981456 A EP00981456 A EP 00981456A EP 1232047 B1 EP1232047 B1 EP 1232047B1
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EP
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Prior art keywords
pieces
bath
heating
wood
cooling
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EP00981456A
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English (en)
French (fr)
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EP1232047A1 (de
Inventor
Henri Bailleres
Jean-Michel Meot
Olivier Vitrac
Anne-Lucie Wack
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Centre de Cooperation Internationalel en Recherche Agronomique pour le Development CIRAD
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Centre de Cooperation Internationalel en Recherche Agronomique pour le Development CIRAD
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K1/00—Damping wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0207—Pretreatment of wood before impregnation
    • B27K3/0221—Pore opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/001—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/0055—Radio-waves, e.g. microwaves

Definitions

  • the present invention relates to a method and a device for heat treatment and impregnation, essentially by immersion, wood or similar woody materials.
  • Patent application EP-A-956 934 describes a process impregnating wood with a termite preservative and arylpyrazole type mushrooms, in which the mixture is heated to 350 ° C. wood to remove moisture and oils, placing it in an oven under an inert gas atmosphere for 5 minutes; the wood is then cooled to 20 ° C and immersed in an aqueous solution containing the agent of preservation for one hour.
  • the impregnation of wood in preservatives depends on the composition and structure of the latter.
  • the impregnation capacity is very variable from one species to another; beech, maple and charm soak up completely while the heart of other species is difficult accessible and only the sapwood can be significantly impregnated with preserving substances.
  • some species, such as fir, spruce or Douglas fir can be very difficult to impregnate.
  • the effectiveness of an impregnation treatment can be assessed at once by the quantity and depth of penetration of the preservative absorbed in the piece of wood.
  • the processes ensuring low penetration depth let us quote in particular: the external application of the preservative using a brush, by sprinkling or spraying, by direct immersion in the treatment solution containing the preservation.
  • Increasing penetration depth and impregnated quantities is generally obtained from a treatment in autoclave such as the process described in the document "Guide to the wood preservation ”, Michel RAYZAL, March 1998, Center technique du wood and furniture (CTBA) - 75012 PARIS, pages 62-67.
  • CTBA Center technique du wood and furniture
  • the autoclave treatment times are also long (several hours) and require long equipment downtimes.
  • the object of the present invention is to provide an improved method wood treatment and a device for its implementation.
  • the present invention also aims to remedy, in part at least, to the disadvantages of known methods.
  • said part is heated in order to obtain an intense vaporization of a part water contained in the material.
  • said part is suddenly cooled by placing contact with a "cold" liquid medium (the temperature of which is very below the boiling temperature of water at working pressure) containing the preservative (s).
  • a "cold" liquid medium the temperature of which is very below the boiling temperature of water at working pressure
  • This last step is carried out preferably by immersion in a (liquid) bath of the solution of which seeks to permeate the room.
  • the invention is based on the generation of a strong pressure drop in wood fabrics (induced by intense vaporization) in the presence of high heat flux densities and a temperature of the material greater than or equal to the boiling point of water at the working pressure.
  • This first step is followed by contacting the as fast as possible with the treatment solution at a very high temperature below the boiling point of water.
  • To the internal overpressure of the first stage follows a depression during the second stage which is used for the impregnation of the pores and vessels of the piece of wood by capillary flow of the treatment solution in contact with its surface exterior.
  • this transfer must be made in less than 30 seconds, especially in less than 10 seconds, for example in less than 3 or 5 seconds.
  • This effect can, if necessary, be limited or even avoided by waterproofing or covering the ends of the part to be treated where the longitudinal fibers of the wood are exposed and which offer low pressure losses with gases and liquids; this further promotes the implementation internal removal of the piece of wood by heating.
  • the maintaining the temperature of the atmosphere traversed by the material, during its transfer, at a temperature higher than the boiling point of water (at working pressure) by spraying liquid, hot air from steam or by additional heating (by infrared, high frequencies, microwave) will prevent early condensation of the vapor trapped in the porous matrix.
  • the latter can finally be prevented by a transfer of the material with the atmosphere used during the first stage by means of a nacelle, a lock or any other adapted device.
  • the parts to be treated are not dry; it is essential that the parts to be treated have humidity greater than 25%, in particular of the order of 40% to 80% (mass / mass dry); for this purpose the parts can if necessary be re-humidified before treatment by prolonged immersion in a tank of liquid water at ambient temperature.
  • the latter is carried out in liquid medium in the treatment solution at a very less than the surface of the heated piece of wood.
  • the gap between these last two temperatures are generally chosen above 40 ° C, in particular above 60 ° C.
  • we maintain the bath temperature thanks to a cooling unit, a temperature generally below 90 ° C at atmospheric pressure, plus precisely located in the range of 10 ° C to 70 ° C.
  • the treatment bath in which the cooling is carried out quick immersed parts to be treated, can essentially consist an aqueous phase containing hydrophilic preservatives (such as than Copper - Chromium-Arsenic), by creosotes diluted in petroleum, by an emulsion or a dispersion of these same agents in phases aqueous or hydrophobic, by one or a mixture of organic solvents.
  • hydrophilic preservatives such as than Copper - Chromium-Arsenic
  • creosotes diluted in petroleum by an emulsion or a dispersion of these same agents in phases aqueous or hydrophobic, by one or a mixture of organic solvents.
  • an oil bath s
  • preservatives hydrophobic for example pyrethrins and pyrethroids.
  • the cooling in an oil bath can greatly reduce costs of the treatment solution and ensuring rapid cooling, about fifty degrees in less than 30 minutes, especially less than 10 minutes, under natural convection conditions (the oils are very thermodilatable fluids).
  • we induce a tangential movement of the cold medium treating by relation to the parts is achieved, either by moving the parts, or by flow of the bath, either by a combination of these means (displacement pieces of wood on rails or carpets combined with a recirculation of the treatment solution in the cooling tank).
  • the total duration of the treatment does not exceed four hours; for example the duration is of the order of 30 minutes at 1 hour (depending on the dimensions and the initial water content of the parts to be treated.
  • the desired quality objective quantitative impregnated and / or penetration depth
  • the heating is carried out in the presence of high flux densities and must lead to a boiling of the water in the material (ie vaporization of the water at the heart of the material under the effect of strong heat flux) ;
  • the flux densities are generally at least equal to 10 kW / m 2 or 2 MW / m 3 , and in particular situated in the range from 10 kW / m 2 to 300 kW / m 2 (power related to the external surface of the parts treated), and / or in the range from 2 MW / m 3 to 20 MW / m 3 (power based on the volume of parts treated).
  • Heating can be obtained by various processes which can be combined if necessary: radiation (infrared, high frequencies, ultra high frequencies), exposure to very hot air (eg combustion gas) or superheated steam , immersion in a fluid at high temperature (between 110 and 300 ° C at atmospheric pressure) whose boiling temperature is much higher than that of liquid water; in the latter case, the parts are preferably immersed in a bath of a similar nature to that used for cooling, in particular an oil bath maintained at a temperature between 110 and 250 ° C. at atmospheric pressure.
  • radiation infrared, high frequencies, ultra high frequencies
  • very hot air eg combustion gas
  • superheated steam immersion in a fluid at high temperature (between 110 and 300 ° C at atmospheric pressure) whose boiling temperature is much higher than that of liquid water; in the latter case, the parts are preferably immersed in a bath of a similar nature to that used for cooling, in particular an oil bath maintained at a temperature between 110 and 250 ° C. at atmospheric pressure.
  • an oil or a mixture of oils of animal, vegetable or mineral origin, in particular used vegetable oils, by-products of the food industry such as used frying oils.
  • These inexpensive products are thermodegraded and therefore rich in surfactants (free fatty acids); they allow the use of preservatives hydrophilic or hydrophobic in the cooling bath.
  • the use, for the cooling step, of an oil or of a treatment solution having the same hydrophobic character allows significantly reduce the costs of the impregnation solution and protect wood treated with a subsequent rewetting and its effects during a outdoor use (drying-rewetting cycles). These effects are responsible for the appearance and propagation of cracks in the periphery of the treated wood and constitute preferential routes of penetration of agents biological degradation of wood.
  • the oil is used for its excellent fluid properties coolant in a two-phase medium (i.e. in the presence of steam) during the first stage.
  • this first step can be accompanied by the strong fixation of fatty acids from the bath on celluloses and wood hemicelluloses, a very favorable reaction to the preservation of wood.
  • the impregnation of the material in thermodegraded substances such as frying oils reduces very strongly the biological availability of the wood substrate for microorganisms and insects.
  • the use of oils offers outlets for low-valued agro-food industry by-products and allows the material to be impregnated with biodegradable substances which will allow better compatibility of the materials produced with the environment during their use or recycling.
  • each container receiving the bath includes means for holding pieces of wood in immersion total (the buoyancy of the material depending on the composition of the material and in particular its water content).
  • immersion total the buoyancy of the material depending on the composition of the material and in particular its water content.
  • These devices can be fixed or mobile, in the latter case they are also used for moving pieces in the bath.
  • the two containers (or bins) must be contiguous preference; they can be obtained by equipping a tank with a partition wall physically and thermally insulating the bath heating the cooling bath. This separation can be total or partial.
  • the transfer of parts from the first to second bath can be obtained without contact with the gas atmosphere present above the baths; for this purpose, the device may include a airlock (or "lock") fitted with devices for holding parts in immersion during their transfer.
  • the bins are preferably covered, at least in part, by a cover making it possible to reproduce an enclosure of confinement under slight overpressure.
  • the invention consists of a piece of wood, which is likely to be obtained, directly or indirectly, by a process according to the invention, part of which (or peripheral layer) at less is impregnated with a preservative; said part or layer is impregnated with an impregnation vector chosen from mineral oils, animal oils, vegetable oils, solvents (creosotes, tars, mineral oils from the fractionation of petroleum products, extracts vegetable in mineral solvents or not); in addition, a part (layer) can be roasted (partial charring), as a result of surface heating, especially in a high oil bath temperature (between 110 and 250 ° C at atmospheric pressure).
  • the average water content of the part (in particular of said layer in peripheral part) will be less than 0.3 kg or 0.4 kg of water per kg of non-oily dry matter, in particular less than 0.1 kg / kg.
  • Content average in impregnation solution (in particular oil) of said impregnated layer will generally be of the order of 0.05 to 2 kg of oil per kg non-oily dry matter.
  • the thickness of the impregnated layer is in the order of 1 to 100 mm depending on the direction in which the pieces of wood are cut by relation to the orientation of the cellular elements of the wood, in particular of around 5 to 50 mm for a log 200 mm in diameter.
  • the thickness mean of the roasted surface layer characterized by alteration hemicellulose and amorphous cellulose molecules (decrease significant of the number of hydroxyl groups associated with a partial crosslinking) and the appearance of pyrolysis products, may be about 0.5 to 2 cm (it depends very much on time and temperature treatment).
  • FIG. 7 presents a schematic cross section of a piece of wood treated according to the invention.
  • Each of the devices 1 comprises a tank 2 containing the bath 3 of heating of pieces 4 of wood, and a tank 5 containing the bath 6 of cooling and processing these same parts.
  • the tank 2 is equipped with a connected heat exchanger 7 by conduits 50 to a heating device (not shown) of a heat transfer fluid circulating in the exchanger 7 and the conduits 50.
  • the tank 5 is equipped with a heat exchanger 8 connected by conduits 51 to a cooling unit (not shown) of a coolant circulating in the exchanger 8 and the conduits 51.
  • each tray 2, 5 is respectively equipped with a member 10, 12 ensuring immersion.
  • This member 10, 12 can be fixed and be in the form of a rail flush with or immersed in the surface of the bath; alternately this member can be mobile and can be in the form of a conveyor belt, chain or cable; in this case, it can be equipped with organs protrusions forming fingers capable of moving parts 4 in motion in the baths, as schematically represented by the arrows 11, 13.
  • One or two conveyor (s) 14a, 14b, 14c (figures 1 and 3) of structure similar can be used to quickly transfer parts 4 from bath 3 to bath 6: each of these conveyors has a cable 52 fitted of fingers 53 for driving parts 4; conventionally, each cable shaped in a closed loop, extends between two pulleys or rollers rotated by an actuator along perpendicular axes in terms of figures.
  • such a conveyor 14a partially immersed in bath 3 is used to move (arrow 55) the pieces 4 along an inclined wall 54 of the tank 2, so as to cause them to fall (arrow 56) into the bath 6.
  • two conveyors 14b, 14c similarly transfer the pieces 4 from tray 2 to tray 5 by sliding and / or rolling on the inclined walls 54, 57 (respectively up and down) of these 2 tanks; the bins are joined by the edge common superior of the two walls 54, 57.
  • a single conveyor 14 the central part of the longitudinal profile is curved to extend substantially parallel to the inclined walls 54, 57 through which the trays are connected, fulfills both the function of drive in motion parts 4 in the baths 3, 6, for keeping these parts immersed in these baths, and transfer of the parts from the first to the second bath.
  • one or more pumps and / or agitators can contribute to the relative movement of the pieces of wood with the treatment solution.
  • a cover 16 equipped with a nozzle 18 for injection (arrow 58) of a hot gas covers zone 9 of transfer between the tanks.
  • the heating of rooms 4 can be obtained and / or supplemented by the action of a device as marked 17 which diffuses into the enclosure 59 of processing delimited by the cover 16 and the tanks 2, 5, microwaves or infrared radiation.
  • the transfer from one bin to the other is obtained by pivoting 60 along the axis 61 (perpendicular to the plane of the figure), of a basket 62 mounted at the end of an arm 63.
  • this transfer is obtained by a similar pivoting of a partially submerged airlock with four flaps 64 whose transverse profiles form a cross; the extremities of the two flaps located in the lower part slide, during the pivoting of the airlock, along a wall 65 in the form of a cylinder portion with a horizontal axis, which wall extends at the upper end of a partition 66 separating the trays 2, 5; the space 67 delimited by the two lower flaps and the wall 65 is adapted to receive one or more pieces 4; flap rotation of the airlock according to the arrow (anti-clockwise) causes the transfer of the parts of the bath 3 to bath 6 without emersion.
  • the device illustrated in FIG. 6 has two structures similar to that of Figure 3, which are arranged end to end and connected by a additional transfer device capped with a structure 16, 18 of protection; this device allows a treatment comprising successively a first heating, a first cooling, a second heating and a second cooling.
  • FIG. 7 The cross section of a treated axis 4b post which is illustrated Figure 7 shows the impregnated layer 4c of thickness 4d, the part of which 4th roasted device of thickness 4f.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Claims (18)

  1. Verfahren zur Behandlung von Teilen (4) aus Holz, wie Brettern, Balken, Pfählen oder Pfosten, mit einem wasserabweisenden Holzschutzmittel, mit einem Erhitzungsschritt durch Eintauchen der Teile in ein Ölbad, an den sich ein Abkühlungsschritt der Teile durch Inkontaktbringen mit einem das genannte Mittel enthaltenden Ölbad (6) anschließt, bei dem Teile behandelt werden, deren Feuchtigkeit über 25 Massenprozent liegt, und zu diesem Zweck werden die Teile (4) vor dem Erhitzen gegebenenfalls befeuchtet, wobei das Verfahren dadurch gekennzeichnet ist, dass
    die Intensität des Erhitzens des Erhitzungsölbades wenigstens gleich 10 kW pro m2 Außenfläche der behandelten Teile oder 2 MW pro m3 Volumen der behandelten Teile beträgt, um ein intensives Verdampfen des in den Teilen enthaltenen Wassers zu erzielen,
    die Teile in ein sogenanntes Abkühlungsölbad überführt werden, wobei sie in einen Raum (16, 59) eingeschlossen werden, um einen Überdruck in den Teilen aufrechtzuerhalten, und wobei ein ausgedehntes Inkontaktbringen der erhitzten Teile mit einem nicht behandelndem Medium, wie der Umgebungsluft, vermieden wird,
    und dass die Bäder zum Erhitzen und zum Abkühlen eine Zusammensetzung auf der Basis von Pflanzenöl haben.
  2. Verfahren nach Anspruch 1, bei dem die Temperatür der von den Teilen durchlaufenen Umgebung, bei deren Überführen in das Bad, durch ein ergänzendes Erhitzen auf einer Temperatur gehalten wird, die über der Siedetemperatur des Wassers liegt.
  3. Verfahren nach irgendeinem der Ansprüche 1 oder 2, bei dem die Teile mit der während des Erhitzungsschrittes verwendeten Umgebung mittels einer Gondel, einer Schleuse oder jedwedem anderen geeigneten Mittel überführt werden.
  4. Verfahren nach irgendeinem der Ansprüche 1 bis 3, bei dem Teile (4) aus Holz behandelt werden, deren Feuchtigkeit in der Größenordnung zwischen 40 und 80 Massenprozent (bezogen auf die Trockenmasse) beträgt.
  5. Verfahren nach irgendeinem der Ansprüche 1 bis 4, bei dem das Erhitzen und das Abkühlen durch aufeinanderfolgendes Eintauchen in zwei Ölbäder (3, 6) erzielt wird, wobei das Überführen der Teile (4) vom ersten Bad in das zweite Bad in weniger als 30 Sekunden vollzogen wird.
  6. Verfahren nach Anspruch 5, bei dem das erste Bad auf einer Temperatur zwischen 110°C und 250°C gehalten wird, und bei dem das zweite Bad auf einer Temperatur von unter 90°C gehalten wird.
  7. Verfahren nach irgendeinem der Ansprüche 1 bis 6, bei dem vor dem Erhitzen die Enden der Teile (4), an denen die Längsfasern des Holzes glatt abschließen, undurchlässig gemacht oder überzogen werden, um das Erzeugen eines Überdrucks in den Teilen (4) durch den Schritt des Erhitzens zu begünstigen und um das Inkontaktbringen der Teile mit einer nicht behandelnden Phase zu begrenzen.
  8. Verfahren nach irgendeinem der Ansprüche 1 bis 7, bei dem die Dauer der Behandlung in der Größenordnung zwischen 30 Minuten und 4 Stunden liegt und bei dem die Dauer des Abkühlens länger ist als die Dauer des Erhitzens.
  9. Verfahren nach irgendeinem der Ansprüche 1 bis 8, bei dem die Heizleistung flächenbezogen mit Flussdichten zwischen 10 und 300 kW/m2 durch Inkontaktbringen mit einer heißen Flüssigkeit, durch Infrarotstrahlung, durch Inkontaktbringen mit überhitztem Wasserdampf (zwischen 140 und 300°C) oder heißer Luft (zwischen 150 und 300°C), oder im Volumen durch Strahlung hoher Frequenz oder sehr hoher Frequenz mit Dichten zwischen 2 und 20 MW/m3 zugeführt wird.
  10. Verfahren nach irgendeinem der Ansprüche 1 bis 9, bei dem vom Erhitzen zum Abkühlen übergegangen wird, wenn das Verhältnis der in den Teilen enthaltenen Wassermasse zu der Trockenmasse dieser in einem Bereich zwischen 60 % und 20 % liegt.
  11. Vorrichtung zur Behandlung von Teilen (4) aus Holz mit:
    einer Vorrichtung (7) zum Erhitzen der Teile (4),
    einer Vorrichtung (8) zum Abkühlen der Teile (4) durch Kontakt mit einem Flüssigbad (6), welches ein Holzschutzmittel enthält,
    wobei die Vorrichtung zur Behandlung dadurch gekennzeichnet ist, dass:
    die Vorrichtung zum Erhitzen (7) geeignet ist, einen Fluss von wenigstens gleich 10 kW pro m2 Außenfläche der behandelten Teile oder gleich 2 MW pro m3 Volumen der behandelten Teile zu gewährleisten, um ein intensives Verdampfen des in dem Teil enthaltenen Wassers zu erzielen,
    und dass sie eine Vorrichtung (9) zum Bewegen der Teile (4) gegenüber den Vorrichtungen (7, 8) zum Erhitzen und zum Abkühlen, sowie einen Einschließungsraum (16, 59) aufweist, welcher ermöglicht, in den Teilen (4) einen Überdruck aufrechtzuerhalten und ein ausgedehntes Inkontaktbringen der erhitzten Teile mit einem nicht behandelndem Medium, wie der Umgebungsluft, zu vermeiden.
  12. Vorrichtung nach Anspruch 11, welche folgendes aufweist:
    einen Behälter (2), welcher geeignet ist, ein Bad (3) aufzunehmen,
    ein Organ (7) zum Erhitzen des Bades (3), wie einen Austauscher,
    ein Organ (10) zum Halten der in das Bad eingetauchten Teile (4),
    ein Organ (11) für die Relativbewegung der Teile (4) und des Bades (3), wie eine Pumpe zum Zirkulieren des Bades oder einen Förderer zum Bewegen der Teile, und die weiterhin folgendes aufweist:
    einen Behälter (5), welcher geeignet ist, ein Bad (6) aufzunehmen,
    ein Organ (8) zum Abkühlen des Bades (6), wie einen Austauscher,
    ein Organ (12) zum Halten der in das Bad (6) eingetauchten Teile (4),
    ein Organ (13) für die Relativbewegung der Teile (4) und des Bades (6), wie eine Pumpe und/oder einen Förderer,
    und bei der die Bewegungsvorrichtung (9) einen Förderer (14) oder eine Überladevorrichtung (15) vom Typ Schleusenkammer oder Schleuse umfasst.
  13. Vorrichtung nach Anspruch 11 oder 12, die außerdem folgendes aufweist:
    eine Abdeckhaube (16) zum teilweisen Begrenzen wenigstens des Behandlungsraumes (2, 5) und der Bewegungsvorrichtung (9),
    ein Organ (17) zum kontaktfreien Erhitzen der Teile (4), wie beispielsweise einen Mikrowellen- oder Infrarotstrahlungserzeuger,
    ein Organ (18) zum Einleiten eines heißen Gases in den Behandlungsraum (2, 5, 16).
  14. Vorrichtung nach irgendeinem der Ansprüche 12 bis 13, die wenigstens zwei Behälter (2) zum Erhitzen und wenigstens zwei Behälter (5) zum Abkühlen aufweist, die abwechselnd angeordnet sind, wobei jedes Paar von angrenzenden Behältern (2, 5) mit einem Mittel zum Überführen der Teile (4) von einem Behälter zum nächsten ausgestattet ist.
  15. Holzteil (4), das durch ein Verfahren nach irgendeinem der Ansprüche 1 bis 11 erhalten werden kann und von dem wenigstens ein Teil mit einem Schutzmittel und gebrauchtem Pflanzenöl imprägniert ist.
  16. Teil (4) nach Anspruch 15, bei dem der Gehalt an gebrauchtem Öl in dem imprägnierten Teil des Teils (4) in der Größenordnung von 0,05 bis 2 kg Öl pro kg nicht ölhaltiger Trockensubstanz liegt.
  17. Teil (4) nach Anspruch 15 oder 16, das eine geröstete Oberflächenschicht aufweist, deren Dicke in der Größenordnung von 0,5 cm bis 2 cm liegt.
  18. Teil nach irgendeinem der Ansprüche 15 bis 17, bei dem die Dicke der imprägnierten Schicht bezogen auf den Halbmesser (oder Äquivalentdurchmesser) eines Querschnitts des Teils zwischen 10% und 100% liegt, und bei dem der Wassergehalt dieser imprägnierten Schicht unter 0,4 kg pro kg Trockensubstanz liegt.
EP00981456A 1999-11-22 2000-11-22 Verfahren und vorrichtung zur behandlung von holz und holzmaterialen Expired - Lifetime EP1232047B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9914672 1999-11-22
FR9914672A FR2801241B1 (fr) 1999-11-22 1999-11-22 Procede et dispositif pour le traitement du bois ou des materiaux similaires
PCT/FR2000/003245 WO2001038055A1 (fr) 1999-11-22 2000-11-22 Procede et dispositif pour le traitement du bois ou des materiaux similaires

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EP1232047A1 EP1232047A1 (de) 2002-08-21
EP1232047B1 true EP1232047B1 (de) 2004-07-28

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EP00981456A Expired - Lifetime EP1232047B1 (de) 1999-11-22 2000-11-22 Verfahren und vorrichtung zur behandlung von holz und holzmaterialen

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EP (1) EP1232047B1 (de)
AT (1) ATE271959T1 (de)
AU (1) AU1869801A (de)
CA (1) CA2392159C (de)
DE (1) DE60012564T2 (de)
ES (1) ES2225274T3 (de)
FR (1) FR2801241B1 (de)
WO (1) WO2001038055A1 (de)

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CN107030823A (zh) * 2017-04-18 2017-08-11 浙江永裕竹业股份有限公司 一种型材的改性冷却处理方法
CN107127846A (zh) * 2017-04-18 2017-09-05 浙江永裕竹业股份有限公司 一种竹重组材的制备方法

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US6282810B1 (en) * 2001-01-04 2001-09-04 Te-Ming Hsieh Method for dehydrating wooden material
KR20010081136A (ko) * 2001-08-06 2001-08-29 안선태 목재의 압축가공방법
NZ523249A (en) * 2002-12-16 2005-04-29 Mattersmiths Holdings Ltd Method of delivering compositions to substrates
US7300705B2 (en) * 2003-06-23 2007-11-27 Weyerhaeuser Company Methods for esterifying hydroxyl groups in wood
WO2012136215A1 (en) * 2011-04-06 2012-10-11 Miawood Method for treating wooden materials with high-frequency electromagnetic waves
CN108274567A (zh) * 2018-02-28 2018-07-13 浙江粤强家具科技有限公司 一种家具板材的防腐处理装置
CN109746993B (zh) * 2018-12-29 2023-10-17 湖北宝源木业有限公司 一种湿刨片的浸渍装置及湿刨片的浸渍方法
CN114654549A (zh) * 2022-04-09 2022-06-24 霍邱县亨兴工艺品有限公司 一种异形木制品染色装置及其染色方法

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CA976813A (en) * 1972-10-19 1975-10-28 Canadian Wood Council Method of manufacturing fire retardant plywood employing a high frequency electromagnetic field
US3928677A (en) * 1972-12-08 1975-12-23 Firewood Inc Process of treating wood
GB2099870B (en) * 1981-06-08 1985-06-19 Hager Bror Olof Process for drying wood
JPS58219005A (ja) * 1982-06-15 1983-12-20 松下電工株式会社 処理液の含浸法
ATA237789A (de) * 1989-07-03 1992-06-15 Robert Boho Verfahren zur behandlung von nassem nadel- oder laubbaumholz
GB2244067B (en) * 1990-05-16 1994-11-09 Rajdvinder Singh Bains The proposal of an oil based wood preservative
EP0956934A1 (de) * 1998-05-12 1999-11-17 Rhone Poulenc Agro Holzschutz mit Arylpyrazolen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107030823A (zh) * 2017-04-18 2017-08-11 浙江永裕竹业股份有限公司 一种型材的改性冷却处理方法
CN107127846A (zh) * 2017-04-18 2017-09-05 浙江永裕竹业股份有限公司 一种竹重组材的制备方法

Also Published As

Publication number Publication date
ES2225274T3 (es) 2005-03-16
FR2801241B1 (fr) 2002-02-08
CA2392159C (fr) 2009-04-07
DE60012564T2 (de) 2005-08-04
AU1869801A (en) 2001-06-04
ATE271959T1 (de) 2004-08-15
EP1232047A1 (de) 2002-08-21
FR2801241A1 (fr) 2001-05-25
DE60012564D1 (de) 2004-09-02
CA2392159A1 (fr) 2001-05-31
WO2001038055A1 (fr) 2001-05-31

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