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Application filed by KOĹ MERL StojanfiledCriticalKOĹ MERL Stojan
Priority to SI200800023ApriorityCriticalpatent/SI22506B/en
Publication of SI22506ApublicationCriticalpatent/SI22506A/en
Priority to HR20090056Aprioritypatent/HRP20090056A2/en
Publication of SI22506BpublicationCriticalpatent/SI22506B/en
Chemical And Physical Treatments For Wood And The Like
(AREA)
Drying Of Solid Materials
(AREA)
Abstract
The submitted invention relates to a procedure of thermal treatment of wood. Thus it has been foreseen according to the invention to place the wood, which is going to be treated thermally, into a chamber where both temperature and pressure are varied during the course of treatment of the wood. It has been foreseen according to the invention preferentially that the said procedure takes place in vacuum and at a temperature which is essentially higher than the ambient temperature.
Claims (8)
Patentni zahtevkiPatent claims1. Postopek toplotne obdelave lesa, ki se ga v zaprti komori pri spremenljivi temperaturi segreva ob spremenljivem tlaku, obsegajoč a) izbiroma predhodno sušenje lesa, ki naj se ga toplotno obdela, b) namestitev omenjenega lesa v komoro naprave za toplotno obdelavo, c) znižanje tlaka v komori naprave za toplotno obdelavo pod okoliški dak, d) segrevanje lesa, ki naj se ga toplotno obdela, do vnaprej izbrane naj višje temperature, s čimer se pospeši izločanje plinov in hlapnih snovi iz omenjenega lesa, e) vzdrževanje dosežene vnaprej izbrane najvišje temperature lesa v komori naprave za toplotno obdelavo, f) izsesavanje iz lesa, ki se ga toplotno obdeluje, izločenih plinov in hlapnih snovi iz komore, da se v slednji ponovno vzpostavi poddak, ki je v bistvu približno enak tlaku, doseženem v koraku c), in g) počasno ohlajanje lesa, ki naj se toplotno obdela, v komori naprave za toplotno obdelavo do okoliške temperature.1. A method of heat treating wood which is heated at a variable temperature at a variable temperature at a variable pressure, comprising a) selecting the pre-drying of the wood to be heat treated, b) positioning said wood in the chamber of the heat treatment plant, c) lowering the pressure in the chamber of the heat treatment plant under the surrounding dak, d) heating the wood to be heat treated to the predetermined temperature, thereby accelerating the elimination of gases and volatiles from said wood, e) maintaining the achieved pre-selected the highest temperature of the wood in the chamber of the heat treatment plant, f) the extraction from the heat-treated wood, the discharged gases and the volatiles from the chamber in order to restore the latter in the latter, which is substantially the same as the pressure reached in step c ), and g) slowly cooling the wood to be heat treated in the chamber of the heat treatment device to the ambient temperature.2. Postopek toplotne obdelave lesa po zahtevku 1, značilen po tem, da se dak v komori naprave za toplotno obdelavo lesa zmanjša pod 0,2 bar.A heat treatment process according to claim 1, characterized in that, in the chamber of the wood heat treatment device, it is reduced below 0.2 bar.3. Postopek toplotne obdelave lesa po zahtevku 1 in 2, značilen po tem, da se dak v komori naprave za toplotno obdelavo lesa prednostno zmanjša pod 0,1 bar.A heat treatment process according to Claims 1 and 2, characterized in that preferably in the chamber of the wood heat treatment device it is preferably reduced below 0.1 bar.4. Postopek toplotne obdelave lesa po zahtevkih 1 do 3, značilen po tem, da je omenjeni začetni dak v omenjeni komori potrebno doseči, preden temperatura lesa doseže vrednost okoli 100 °C.A heat treatment process according to claims 1 to 3, characterized in that said initial dak in said chamber is to be achieved before the temperature of the wood reaches a value of about 100 ° C.5. Postopek toplotne obdelave lesa po kateremkoli od predhodnih zahtevkov, značilen po tem, da se omenjeno naj višjo temperaturo lesa v komori naprave za toplotno obdelavo lesa vzdržuje v razponu med 150 °C in 260 °C.A heat treatment process according to any one of the preceding claims, characterized in that said said higher temperature of the wood in the chamber of the wood treatment plant is maintained in the range between 150 ° C and 260 ° C.6. Postopek toplotne obdelave lesa po kateremkoli od predhodnih zahtevkov, značilen po tem, da se omenjeno najvišjo temperaturo lesa v komori naprave za toplotno obdelavo lesa vzdržuje v razponu prednostno med 190 °C in 210 °C.A heat treatment process according to any one of the preceding claims, characterized in that said maximum wood temperature in the chamber of the wood heat treatment plant is maintained in the range preferably between 190 ° C and 210 ° C.7. Postopek toplotne obdelave lesa po kateremkoli od predhodnih zahtevkov, značilen po tem, da se doseženo najvišjo temperaturo lesa v komori naprave za toplotno obdelavo lesa vzdržuje v razponu med 2 in 8 urami.Method for heat treatment of wood according to any one of the preceding claims, characterized in that the achieved maximum temperature of the wood in the chamber of the wood heat treatment plant is maintained in the range of 2 to 8 hours.8. Postopek toplotne obdelave lesa po kateremkoli od predhodnih zahtevkov, značilen po tem, da se doseženo naj višjo temperaturo lesa v komori naprave za toplotno obdelavo lesa vzdržuje v razponu prednostno med 4 in 6 urami.A heat treatment process according to any one of the preceding claims, characterized in that the higher temperature of the wood in the chamber of the wood heat treatment plant is maintained in the range preferably between 4 and 6 hours.
SI200800023A2008-02-042008-02-04Procedure of thermal treatment of wood and device to carry out the procedure
SI22506B
(en)