F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
F26B 9/06 (2006.01) F26B 21/02 (2006.01) F26B 21/10 (2006.01)
Patent
CA 2647210
A method of drying wood collected in stacks (2) using a drying gas stream flowing through the wood stack (2) is described which, with removal of moist exhaust gas (8) downstream of the wood stacks (2) and feed of fresh gas (9) upstream of the wood stacks (2), is in part circulated through the wood stacks (2), wherein the wood is dried more rapidly at a moisture content above the fibre saturation than at a moisture content below the fibre saturation. In order to provide advantageous economic drying conditions, it is proposed that the wood, before its slower drying, is dried more rapidly using the in part circulated drying gas stream using a drying gas stream consisting of at least essentially only fresh gas.
L'invention concerne un procédé de séchage de bois rassemblé en piles (2) à l'aide d'un courant gazeux de séchage traversant la pile de bois (2), ledit courant gazeux réalisant en partie un cycle au travers de la pile de bois (2) par départ de gaz humides (8) de la pile de bois (2) et arrivée de gaz frais (9) dans la pile de bois (2), le bois étant séché plus rapidement à une teneur en humidité supérieure à la saturation des fibres qu'à une teneur en humidité inférieure à la saturation des fibres. Afin de créer des conditions favorables et économiques de séchage, il est proposé que le bois, avant son séchage plus lent, soit séché rapidement à l'aide du courant gazeux de séchage réalisant en partie un cycle avec au moins un courant gazeux de séchage constitué sensiblement uniquement de gaz frais.
Fetherstonhaugh & Co.
Muehlboeck Kurt
LandOfFree
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