DK200200872A - Heat treatment of wood with steam - Google Patents

Heat treatment of wood with steam Download PDF

Info

Publication number
DK200200872A
DK200200872A DK200200872A DKPA200200872A DK200200872A DK 200200872 A DK200200872 A DK 200200872A DK 200200872 A DK200200872 A DK 200200872A DK PA200200872 A DKPA200200872 A DK PA200200872A DK 200200872 A DK200200872 A DK 200200872A
Authority
DK
Denmark
Prior art keywords
wood
heat treatment
steam
autoclave
pressure
Prior art date
Application number
DK200200872A
Other languages
Danish (da)
Inventor
Skovmand Erik
Christensen Peter
Original Assignee
Iwotech As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iwotech As filed Critical Iwotech As
Priority to DK200200872A priority Critical patent/DK200200872A/en
Priority to AU2003234971A priority patent/AU2003234971A1/en
Priority to PCT/DK2003/000368 priority patent/WO2003106123A2/en
Publication of DK200200872A publication Critical patent/DK200200872A/en

Links

Classifications

    • 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
    • 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
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

PATENTKRAV 1 Fremgangsmåde til varmebehandling af træemner .kendetegnet ved , at behandlingen af træemnerne (1) sker i en autoklave (2), således at træemnerne (1) kan behandles under tryk og/eller vakuum, fortrinsvis til tryk, der ligger omkring mættede dampes tryk 2 Fremgangsmåde ifølge krav 1,kendetegnet ved , at mængden af ilt i autoklaven (2) reduceres inden varmebehandling, hvorefter en form for beskyttelsesgas kan tilsættes for reduktion af forkulning af træemnerne (1) 3 Anlæg til behandling af træemner (1) i et opvarmet rum .kendetegnet ved , at rummet udgøres af en autoklave (2), hvilken autoklave (2) er forbundet med et tryksystem (3) til regulering af trykket i anlægget 4 Anlæg ifølge krav 3, kendetegnet ved , at autoklaven (2) har forbindelse til en kondensatbeholder (4) 5 Anlæg ifølge krav 3, kendetegnet ved , at anlægget omfatter en tilførselsanordning for beskyttelsesgas 6 Anlæg ifølge krav 5, kendetegnet ved , at beskyttelsesgassen er CO2 7 Anlæg ifølge krav 3, kendetegnet ved , at kondensat (5) opsamles i en lagerbeholder (6) med henblik på senere anvendelse af kondensatet (5) 8 Anlæg ifølge krav 3, kendetegnet ved , at behandlingsmediet er på dampform 9 Anlæg ifølge krav 3, kendetegnet ved , at anlægget omfatter en eller flere ventiler til langsom trykaflastning/trykudligning af autoklaven (2) 10 Anlæg ifølge krav 3 -9, kendetegnet ved, at anlægget omfatter midler til fast- og/eller sammenspænding af træemnerne (1)A process for heat treating wood blanks, characterized in that the treatment of the blanks (1) takes place in an autoclave (2) so that the blanks (1) can be treated under pressure and / or vacuum, preferably at pressures surrounding saturated vapors. Pressure method according to claim 1, characterized in that the amount of oxygen in the autoclave (2) is reduced before heat treatment, after which a form of protective gas can be added for reducing charcoal of the woodpieces (1). heated space characterized by the space being an autoclave (2), said autoclave (2) being connected to a pressure system (3) for regulating the pressure in the system 4 Installation according to claim 3, characterized in that the autoclave (2) has connection to a condensate container (4) An installation according to claim 3, characterized in that the installation comprises a protective gas supply device 6 An installation according to claim 5, characterized in that the protective gas is CO2 7 Claim 3, characterized in that condensate (5) is collected in a storage container (6) for later use of the condensate (5). 8. Plant according to claim 3, characterized in that the treatment medium is in vapor form. 9 Plant according to claim 3, characterized in the system comprising one or more valves for slow pressure relief / pressure equalization of the autoclave (2). An apparatus according to claims 3 to 9, characterized in that the system comprises means for fastening and / or clamping the wood blanks (1).

DK200200872A 2002-06-07 2002-06-07 Heat treatment of wood with steam DK200200872A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK200200872A DK200200872A (en) 2002-06-07 2002-06-07 Heat treatment of wood with steam
AU2003234971A AU2003234971A1 (en) 2002-06-07 2003-06-06 A method and an apparatus for heat treatment of wooden objects
PCT/DK2003/000368 WO2003106123A2 (en) 2002-06-07 2003-06-06 A method and an apparatus for heat treatment of wooden objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK200200872A DK200200872A (en) 2002-06-07 2002-06-07 Heat treatment of wood with steam

Publications (1)

Publication Number Publication Date
DK200200872A true DK200200872A (en) 2003-12-08

Family

ID=29724337

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200200872A DK200200872A (en) 2002-06-07 2002-06-07 Heat treatment of wood with steam

Country Status (3)

Country Link
AU (1) AU2003234971A1 (en)
DK (1) DK200200872A (en)
WO (1) WO2003106123A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1026135C2 (en) * 2004-05-06 2005-11-11 Konink Boogaerdt B V Method for manufacturing a wooden deck, and wooden slats intended for use with this deck.
DE102009047137A1 (en) 2009-11-25 2011-05-26 Institut Für Holztechnologie Dresden Gemeinnützige Gmbh Method for thermal modification or remuneration of wood and wood products in thermal chambers, involves placing wood or wood product between gas tight, temperature and corrosion-resistant and goods heat conducting cover plate
CN103868343A (en) * 2012-12-17 2014-06-18 南通海辰蛋白科技有限公司 Steam dehumidifying tower
CN105806075A (en) * 2016-04-22 2016-07-27 成都聚智工业设计有限公司 Vacuum drying and mixing device
GB201708641D0 (en) * 2017-05-31 2017-07-12 Leed And Bradford Boiler Company Ltd Autoclave system and method
CN116061278A (en) * 2022-11-24 2023-05-05 湖北萨莱玛木结构工程有限公司 Expansion and shrinkage control equipment of building wooden structure
CN116086164A (en) * 2022-12-12 2023-05-09 国网浙江省电力有限公司营销服务中心 Bamboo chip drying room temperature and humidity uniform control method based on clustering

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044221A1 (en) * 1980-11-25 1982-06-03 Rütgerswerke AG, 6000 Frankfurt METHOD FOR THE DIMENSIONAL STABILIZATION OF PRESS-COMPRESSED WOOD MATERIALS
DK701988D0 (en) * 1988-12-16 1988-12-16 Danish Wood Treating Co Ltd Th PROCEDURE FOR IMPROVING TREE
DE4222178C2 (en) * 1992-07-06 1994-12-15 Werzalit Ag & Co Device for the pretreatment of lignocellulosic chips
NL9201265A (en) * 1992-07-14 1994-02-01 Foreco Dalfsen B V Device for preheating wood
EP0956934A1 (en) * 1998-05-12 1999-11-17 Rhone Poulenc Agro Protection of timber by arylpyrazoles

Also Published As

Publication number Publication date
WO2003106123A3 (en) 2009-03-26
AU2003234971A8 (en) 2009-04-23
AU2003234971A1 (en) 2003-12-31
WO2003106123A2 (en) 2003-12-24

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