Global Patent Index - EP 2668457 A1

EP 2668457 A1 20131204 - METHOD AND DEVICE FOR THE HEAT TREATMENT OF WOOD USING DUST-FREE DEHYDRATED GASES

Title (en)

METHOD AND DEVICE FOR THE HEAT TREATMENT OF WOOD USING DUST-FREE DEHYDRATED GASES

Title (de)

VERFAHREN UND VORRICHTUNG ZUR WÄRMEBEHANDLUNG VON HOLZ MIT STAUBFREIEN DEHYDRATISIERTEN GASEN

Title (fr)

PROCEDE ET DISPOSITIF DE TRAITEMENT THERMIQUE DU BOIS AVEC DES GAZ DESHYDRATES ET DEPOUSSIERES

Publication

EP 2668457 A1 20131204 (FR)

Application

EP 12704876 A 20120119

Priority

  • FR 1150559 A 20110125
  • FR 2012050110 W 20120119

Abstract (en)

[origin: WO2012101359A1] The invention relates to a method for the heat treatment of wood, comprising the following successive steps: a step (1) comprising the production of hot gases and fumes using a biomass gas generator; a fume treatment step (3) consisting in dehydrating the fumes and removing dust therefrom using specific means (10); a step (40) in which the gases are conveyed to a furnace; a step (5) comprising the heating of the wood in the furnace using said gases; and a vapour extraction step (6). The aforementioned fume treatment step (3) is carried out using a device (10) comprising a gas cooling chamber (15) which can be used to dehydrate the gases, said cooling chamber (15) extending into a first collection chamber (17), located below the cooling chamber (15), for collecting the condensates originating from the fume dehydration. The method is essentially characterised in that the first collection chamber (17) is topped with at least one outlet tube (20, 21) having a diameter dimensioned to slow down the gases and to allow the dust to settle.

IPC 8 full level

F27D 7/06 (2006.01); F26B 25/00 (2006.01); F27D 17/00 (2006.01)

CPC (source: EP)

F26B 21/14 (2013.01); F26B 25/006 (2013.01); F26B 25/007 (2013.01); F27D 7/06 (2013.01); F27D 17/008 (2013.01); F26B 2210/16 (2013.01)

Citation (search report)

See references of WO 2012101359A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

FR 2970772 A1 20120727; FR 2970772 B1 20170623; EP 2668457 A1 20131204; EP 2668457 B1 20180307; WO 2012101359 A1 20120802

DOCDB simple family (application)

FR 1150559 A 20110125; EP 12704876 A 20120119; FR 2012050110 W 20120119