EP1027567A1 - Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procede - Google Patents
Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procedeInfo
- Publication number
- EP1027567A1 EP1027567A1 EP98952814A EP98952814A EP1027567A1 EP 1027567 A1 EP1027567 A1 EP 1027567A1 EP 98952814 A EP98952814 A EP 98952814A EP 98952814 A EP98952814 A EP 98952814A EP 1027567 A1 EP1027567 A1 EP 1027567A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wood
- enclosure
- pressure
- drying method
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002023 wood Substances 0.000 claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 210000000416 exudates and transudate Anatomy 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000009738 saturating Methods 0.000 claims abstract description 4
- 239000003570 air Substances 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 5
- 241000018646 Pinus brutia Species 0.000 claims description 5
- 235000011613 Pinus brutia Nutrition 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 239000002537 cosmetic Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000749 insecticidal effect Effects 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010875 treated wood Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 description 12
- 239000000686 essence Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 241000218657 Picea Species 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Definitions
- the present invention relates to a method of drying sawn timber or wooden objects.
- sawn timber is meant a wood which comes directly from the first transformation (sawing).
- L ANTTI teaches to dry wood with microwaves operating in frequencies of 915 or 2450 MHz and a power density in the range of 25 to 78 kW / m 3 to raise the interior temperature of the wood to approximately 140 ° C and achieve internal vapor pressure 25 KPa wood.
- the internal pressure thus produced is very high to allow very rapid evacuation of the water.
- the disadvantage of the process is that it develops fiber breaks.
- the drying process begins with rapid microwave drying at around 70 ° C, then intermittent microwave exposure during drying, and finally, a drying operation by controlling the temperature of the wood below saturation. fibers by limiting themselves to a maximum temperature of 110 ° C.
- air is used as a vehicle to eliminate the moisture evacuated by the wood.
- the humidity level of the air must remain lower than the saturation rate of air with water vapor. It is therefore necessary in known devices to dehumidify the air in order to be able to dry the wood.
- the object of the present invention is to propose a method which makes it possible to optimize the energy and to reduce the powers of the microwave devices while very quickly obtaining a complete drying of the wood, from the green state to a rate final humidity of the order of 10%, or even lower depending on the conditions of use.
- wood drying process comprises:
- the liquid exudates are evacuated permanently. According to another particular feature, the exudates are discharged intermittently.
- the evacuation step is followed by a step of progressive reduction of the pressure to atmospheric pressure after stopping the microwaves.
- the evacuation step comprises a physico-chemical treatment step of the exudates to make them compatible with an evacuation to the wastewater circuit.
- the step of evacuating the liquid exudates is followed by a step of recovery in a container for chemical reprocessing.
- the step of reducing the pressure is completed by a step of dehumidifying the ambient air of the enclosure by passage of the air flow coming from the enclosure over a device for absorbing humidity and cooling of the enclosure air.
- the microwave emission powers applied are decreasing from the center of the pieces of wood to the outside.
- the saturated water vapor pressure is in a range between 2 bars and 15 bars. In another feature, the vapor pressure will be less than
- the vapor pressure will be comprised for at least a determined drying time between 10 and 15 bars and the temperature produced will reach a value comprised in a range of 200 to 220 ° C. to obtain a naturally polymerized dry wood having a humidity level close to 0%.
- the power of the microwave generator is calculated so that the internal heat of the wood is higher than the saturated water vapor temperature.
- Another object of the invention is to propose a device allowing the implementation of the method.
- the device consists of a sealed pressure-resistant enclosure communicating through quartz windows or any other material suitable for microwaves with a waveguide connected by impedance adapters to a microwave generator, said windows being arranged transversely to the stack of wood, the enclosure communicating with a path of recirculation of pressurized air sucking in on one side of the stack of wood the air by grates and discharging it from the other side of the wood stack by diffusion grids, a pressurized steam generator device connected to the enclosure.
- the device comprises a steam condenser circuit connected, in parallel to the air recirculation circuit and selectively by valves.
- the device comprises in its lowest part an orifice for the evacuation by gravity of runoff water controlled by a valve.
- the device comprises:
- the whole of the enclosure and of the preloading area are wrapped in a second enclosure for protection against radiation leaks, this enclosure being accessible from the outside by flexible doors.
- the microwave generator is buried in the ground and communicates with the drying chamber through a waveguide.
- the enclosure includes a safety valve.
- the valve is opened intermittently.
- the valve is permanently open.
- the orifice is connected to a physicochemical treatment device making the exudates compatible with the standards for disposal in wastewater.
- a final object of the invention is to propose a process for extracting chemical components by using the process and the device of the invention consisting of: - to treat a single type of green wood essence by applying microwaves in an atmosphere of saturated water vapor under defined pressure and temperature conditions,
- FIG. 1B shows a top view in longitudinal section of the device according to the invention
- FIG. 1A shows a side view of the implanted device.
- the device consists of an enclosure (1), preferably cylindrical in metallic material ensuring on the one hand, both good thermal insulation and air pressure tightness and on the other hand, sealing against waves.
- This enclosure is opened at one end by a door (16, FIG. 1 B) or two. Openings (14) are made in the enclosure to form windows made of airtight material but allowing microwave radiation to pass through. These windows (14) under pressure are made of a material making it possible to emit waves towards the interior of the enclosure and called emitting windows.
- the waves are brought by a waveguide (40) to a plurality of windows arranged longitudinally and on each side at intervals regular or not along the stack of wood (3) to obtain the most homogeneous possible distribution of the waves.
- the waveguide (40) communicates through an impedance adapter (41) and a 3-decibel divider (42) with an isolator (43) and the microwave generator (44).
- an impedance adapter (41) and a 3-decibel divider (42) with an isolator (43) and the microwave generator (44).
- an isolator (43) the microwave generator
- These pipes (12) communicate on a height corresponding approximately to that of the stack of wood through grids (13) with the internal zone of the enclosure containing the stack of wood (3) transported on a conveyor means such as, for example, a trolley made of wheels (32) mounted on a support plate (31).
- the wood stack is preferably made up of pieces (30) in the form of beams or planks or planks of any thickness and width, obtained from sawing and arranged contiguously over their width in a longitudinal direction to form a layer.
- Each layer of wood is spaced from the lower layer by battens or rods (33) arranged perpendicularly in a non-contiguous manner to provide between the contiguous layers of pieces of wood passages for air circulation, waves, and water.
- the air circulation circuit is also made of a material favoring the reflection of waves towards the interior of the enclosure and of the wood.
- the enclosure is placed in communication by a pipe (15) with a steam generator system (2) and possibly, an air compressor (20).
- the humidity arrives from the steam generator through diffusion grids (13), which makes it possible to diffuse it homogeneously in the enclosure without the risk of creating frontal attacks on the wood.
- the air compressor (20) is used to produce compressed air intended to accelerate the circulation of water in the wood and, when the steam generator system (2) cannot generate steam under sufficient pressure to rise to the desired temperature or to support the temperature rise and accelerate the water circulation of the wood.
- the air compressor can be omitted.
- the wheels of the carriage rest on rails (10A, 10B) integral with the bottom of the tank (1), these are provided with a device for eliminating electric arcs.
- a grid (19) makes it possible to avoid the propagation of the waves towards the liquid exudates or runoff water collected in the bottom of the tank. These runoff waters are discharged through a pipe (18) controlled by a valve (17).
- This pipe (18) opens into a removable or drainable container for recovering liquid exudates resulting from the drying process.
- the pipeline is open permanently or intermittently.
- the pipeline opens into a physico-chemical treatment device making the exudates compatible with the standards in force for wastewater.
- the upper part of the tank has a safety valve (11) which keeps the tank at the desired pressure, releases pressure if it is too high and finally puts the tank in the atmosphere. once the drying process is complete.
- the tank (1) is enclosed in an enclosure (5), which communicates through the airlock of the door (16) automatically controlled at the end and at the start by an electronic control system.
- a preloading zone (50) makes it possible to bring the carriages onto a pair of rails (10C, 10D) which are not in electrical relation with the rails (10A, 10B) of the enclosure (1).
- a vaporization device (52) makes it possible to spray water during the microwave use phase to prevent any leakage of radiation to the outside.
- a reserve tank, not shown, removable and drainable, is connected to the enclosure (1) by a pipe (18) and makes it possible to collect the liquid exudates resulting from the drying of the wood.
- the microwave generator (44) is buried like the reserve tank (6) and communicates with the drying chamber (1) via the waveguide (40).
- the drying process comprises the following operations: introduction by means of transfer of a load of green wood into the enclosure; automatic closing of the enclosure door, preferably to avoid all errors and shocks due to handling; pressurizing the enclosure and diffusing saturated steam into the enclosure until the pressure corresponding to the desired operating temperature in saturated steam is reached.
- a pressure of 2 bars can be used for a temperature of 120 ° Celsius of saturated steam and 2.7 bars for a temperature of 130 ° Celsius of saturated steam.
- the temperature and pressure increases of the process can be done in successive stages, or on ramps or even, according to cycles allowing the optimization of the desired result, complete drying of 0%, drying up to a certain humidity level. or production of chemically exploitable liquid exudates.
- This pre-drying phase under a pressure and a determined saturated vapor temperature is maintained for the time necessary to go from a humidity level of green wood at least 65% depending on the species to a so-called "saturation" rate of 30 %.
- the microwave heating phase of the wood becomes important.
- the power of the microwaves emitted by the central window (14c) may be greater than the power emitted by the windows (141) located on either side. of the central window, is used so as to obtain a temperature differential in the wood which corresponds to a differential of vapor pressure in wood. This pressure differential will be oriented so as to promote the evacuation of water to the outside of the wood and in the direction of the fibers when the determined operating temperature has been reached.
- the power of microwave generators is calculated so as to reach a wood temperature higher than that of saturated steam which can be close to 120 ° Celsius or higher and produce the desired effect in the context of drying from the inside to the outside of the wood.
- the siphon (18) is triggered at regular intervals by the control system as soon as the level approaches the grid.
- the enclosure includes a level detector device allowing the automatic opening of the valve (17). Each water evacuation cycle is followed by a cycle to restore the saturated water vapor pressure of the enclosure. This last phase makes it possible to reduce the humidity of the wood from 30% to the final desired rate which can be 20%, 10%, 6% or 0%.
- the process will include at least one phase of fixed duration during which the temperature will be maintained in a range of around 200 to 220 ° C and in atmospheric pressure saturated vapor greater than 10 bars.
- the drying process can also be used in the device of the invention to produce a liquid exudate incorporating chemical molecules constituting a wood essence, such as pine, eucalyptus, oak, beech, spruce, etc. , or of a determined mixture of essences.
- This exudate is recovered and possibly reprocessed by physicochemical processes to obtain chemical components which can be used in the cosmetic industry, in the pharmaceutical industry, in the perfume industry, in the food industry, in chemistry or in the insecticides.
- the exudate obtained has insecticidal properties.
- the steam generator circuit (2) is closed if the need arises makes you feel.
- the valves (191, 192) for communication with the condenser (19) are open to allow the vapor of the enclosure to condense and to lower the temperature of the enclosure. After a certain time, the microwave generator is also stopped and the pressure reduced to gradually reach atmospheric pressure.
- the enclosure comprises a safety valve (11) allowing the enclosure to be vented to the open air, either at the end of the process, or in the event of detection of an overpressure by the control system.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9830270T SI1027567T1 (en) | 1997-10-30 | 1998-10-29 | Method for drying saw timber and device for implementing said method |
EP02075762A EP1248059A1 (fr) | 1997-10-30 | 1998-10-29 | Procédé de séchage des bois de sciage et dispositif permettant la mise en oeuvre du procédé |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9713641A FR2770441B1 (fr) | 1997-10-30 | 1997-10-30 | Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procede |
FR9713641 | 1997-10-30 | ||
PCT/FR1998/002318 WO1999023429A1 (fr) | 1997-10-30 | 1998-10-29 | Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procede |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02075762A Division EP1248059A1 (fr) | 1997-10-30 | 1998-10-29 | Procédé de séchage des bois de sciage et dispositif permettant la mise en oeuvre du procédé |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1027567A1 true EP1027567A1 (fr) | 2000-08-16 |
EP1027567B1 EP1027567B1 (fr) | 2002-08-28 |
Family
ID=9512846
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02075762A Withdrawn EP1248059A1 (fr) | 1997-10-30 | 1998-10-29 | Procédé de séchage des bois de sciage et dispositif permettant la mise en oeuvre du procédé |
EP98952814A Expired - Lifetime EP1027567B1 (fr) | 1997-10-30 | 1998-10-29 | Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procede |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02075762A Withdrawn EP1248059A1 (fr) | 1997-10-30 | 1998-10-29 | Procédé de séchage des bois de sciage et dispositif permettant la mise en oeuvre du procédé |
Country Status (20)
Country | Link |
---|---|
US (1) | US6473994B1 (fr) |
EP (2) | EP1248059A1 (fr) |
JP (1) | JP4298914B2 (fr) |
CN (1) | CN1135355C (fr) |
AT (1) | ATE223026T1 (fr) |
BR (1) | BR9813163A (fr) |
CA (1) | CA2309307C (fr) |
CZ (1) | CZ297639B6 (fr) |
DE (1) | DE69807516T2 (fr) |
DK (1) | DK1027567T3 (fr) |
EA (1) | EA002725B1 (fr) |
ES (1) | ES2183419T3 (fr) |
FR (1) | FR2770441B1 (fr) |
HU (1) | HU223389B1 (fr) |
OA (1) | OA11408A (fr) |
PL (1) | PL190044B1 (fr) |
PT (1) | PT1027567E (fr) |
SK (1) | SK6402000A3 (fr) |
TR (1) | TR200001192T2 (fr) |
WO (1) | WO1999023429A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100344929C (zh) * | 2003-04-24 | 2007-10-24 | 中国林业科学研究院木材工业研究所 | 木材干燥内应力释放方法及其释放装置 |
CN103932357A (zh) * | 2014-04-17 | 2014-07-23 | 福建省农业科学院畜牧兽医研究所 | 一种牧草加工车间及其加工工艺 |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2793008B1 (fr) * | 1999-04-30 | 2001-07-27 | Valeurs Bois Ind | Procede d'extraction de jus naturel de matieres vegetales ligneuses, dispositif permettant la mise en oeuvre du procede et utilisation du procede pour la production de vegetaux ligneux seches |
US6675495B2 (en) | 1997-10-30 | 2004-01-13 | Valeurs Bois Industrie | Method for drying saw timber and device for implementing said method |
DE19940002A1 (de) * | 1999-08-24 | 2001-03-08 | Roeger Ulrich | Anlage und Methode zur beschleunigten Trocknung schlechter Wärmeleiter |
KR100512079B1 (ko) * | 2000-05-19 | 2005-09-05 | 최 선 태 | 목재 건조 방법과 그 장치 |
AUPR596301A0 (en) * | 2001-06-27 | 2001-07-19 | University Of Melbourne, The | A method of microwave treatment of wood |
JP3562517B2 (ja) * | 2001-08-30 | 2004-09-08 | ヤマハ株式会社 | 楽器およびその製造方法 |
US7246452B1 (en) * | 2003-06-20 | 2007-07-24 | Jacques Roy | Method for treating preservative-treated wood |
US7987614B2 (en) * | 2004-04-12 | 2011-08-02 | Erickson Robert W | Restraining device for reducing warp in lumber during drying |
WO2006034532A1 (fr) * | 2004-09-27 | 2006-04-06 | Andrew Karl Knorr | Traitement de bois d'oeuvre ameliore |
US7963048B2 (en) * | 2005-05-23 | 2011-06-21 | Pollard Levi A | Dual path kiln |
WO2007081685A2 (fr) * | 2006-01-04 | 2007-07-19 | Masonite Corporation | Procede de formation d’un composant de cœur |
FR2900224B1 (fr) * | 2006-04-21 | 2008-07-04 | Bearn Innovation Bernard Dedie | Procede de sechage des boues et dispositif permettant la mise en oeuvre du procede |
NL2000405C2 (nl) * | 2006-12-22 | 2008-06-24 | Willems Holding B V W | Werkwijze voor het verduurzamen van hout, houtproduct en inrichting daarvoor. |
JP5060791B2 (ja) * | 2007-01-26 | 2012-10-31 | 独立行政法人森林総合研究所 | 木材の乾燥方法、木材への薬剤浸透方法及び乾燥装置 |
CZ303305B6 (cs) * | 2007-08-13 | 2012-07-25 | Vojtasík@Radovan | Zpusob sušení reziva a zarízení k provádení tohoto zpusobu |
CN101318347B (zh) * | 2008-07-01 | 2010-09-01 | 合肥溢新微波能科技有限公司 | 微波能人造板处理机 |
US8021445B2 (en) | 2008-07-09 | 2011-09-20 | Skye Energy Holdings, Inc. | Upgrading carbonaceous materials |
US8201501B2 (en) | 2009-09-04 | 2012-06-19 | Tinsley Douglas M | Dual path kiln improvement |
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US20120160840A1 (en) * | 2010-12-23 | 2012-06-28 | Eastman Chemical Company | Wood heater with alternating microwave launch locations and enhanced heating cycles |
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BR102016008739A2 (pt) * | 2016-04-19 | 2017-10-24 | Nunes Claristoni | Grain drying process |
KR101865909B1 (ko) * | 2016-06-15 | 2018-06-08 | 인태근 | 초단파를 이용한 목재 건조장치 |
US10619921B2 (en) | 2018-01-29 | 2020-04-14 | Norev Dpk, Llc | Dual path kiln and method of operating a dual path kiln to continuously dry lumber |
CN109140929A (zh) * | 2018-08-31 | 2019-01-04 | 安徽联丰制丝有限公司 | 一种蚕丝生产用烘干设备 |
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CN117906371B (zh) * | 2024-03-19 | 2024-06-04 | 江苏华诺泰生物医药科技有限公司 | 一种冻干机的进出料机构 |
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- 1998-10-29 TR TR2000/01192T patent/TR200001192T2/xx unknown
- 1998-10-29 EP EP02075762A patent/EP1248059A1/fr not_active Withdrawn
- 1998-10-29 HU HU0004131A patent/HU223389B1/hu not_active IP Right Cessation
- 1998-10-29 PT PT98952814T patent/PT1027567E/pt unknown
- 1998-10-29 CA CA002309307A patent/CA2309307C/fr not_active Expired - Fee Related
- 1998-10-29 AT AT98952814T patent/ATE223026T1/de not_active IP Right Cessation
- 1998-10-29 BR BR9813163-0A patent/BR9813163A/pt not_active IP Right Cessation
- 1998-10-29 WO PCT/FR1998/002318 patent/WO1999023429A1/fr active IP Right Grant
- 1998-10-29 EA EA200000472A patent/EA002725B1/ru not_active IP Right Cessation
- 1998-10-29 CN CNB98811691XA patent/CN1135355C/zh not_active Expired - Fee Related
- 1998-10-29 DK DK98952814T patent/DK1027567T3/da active
- 1998-10-29 JP JP2000519251A patent/JP4298914B2/ja not_active Expired - Fee Related
- 1998-10-29 EP EP98952814A patent/EP1027567B1/fr not_active Expired - Lifetime
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- 1998-10-29 CZ CZ20001538A patent/CZ297639B6/cs not_active IP Right Cessation
- 1998-10-29 PL PL98340375A patent/PL190044B1/pl not_active IP Right Cessation
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CN100344929C (zh) * | 2003-04-24 | 2007-10-24 | 中国林业科学研究院木材工业研究所 | 木材干燥内应力释放方法及其释放装置 |
CN103932357A (zh) * | 2014-04-17 | 2014-07-23 | 福建省农业科学院畜牧兽医研究所 | 一种牧草加工车间及其加工工艺 |
Also Published As
Publication number | Publication date |
---|---|
FR2770441A1 (fr) | 1999-05-07 |
ES2183419T3 (es) | 2003-03-16 |
OA11408A (fr) | 2004-04-20 |
BR9813163A (pt) | 2000-08-22 |
CN1280662A (zh) | 2001-01-17 |
DE69807516T2 (de) | 2003-04-24 |
PT1027567E (pt) | 2003-01-31 |
CZ297639B6 (cs) | 2007-02-21 |
HU223389B1 (hu) | 2004-06-28 |
DE69807516D1 (de) | 2002-10-02 |
US6473994B1 (en) | 2002-11-05 |
PL190044B1 (pl) | 2005-10-31 |
CZ20001538A3 (cs) | 2001-08-15 |
PL340375A1 (en) | 2001-01-29 |
EA200000472A1 (ru) | 2000-10-30 |
TR200001192T2 (tr) | 2001-07-23 |
HUP0004131A3 (en) | 2001-04-28 |
EP1027567B1 (fr) | 2002-08-28 |
CA2309307C (fr) | 2007-10-09 |
ATE223026T1 (de) | 2002-09-15 |
SK6402000A3 (en) | 2000-11-07 |
CA2309307A1 (fr) | 1999-05-14 |
JP2001521848A (ja) | 2001-11-13 |
FR2770441B1 (fr) | 2000-02-11 |
CN1135355C (zh) | 2004-01-21 |
WO1999023429A1 (fr) | 1999-05-14 |
HUP0004131A2 (en) | 2001-03-28 |
DK1027567T3 (da) | 2002-12-30 |
EP1248059A1 (fr) | 2002-10-09 |
EA002725B1 (ru) | 2002-08-29 |
JP4298914B2 (ja) | 2009-07-22 |
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