METHOD FOR DRYING OF LUMBERS Russian patent published in 2008 - IPC F28B3/04 

FIELD: wood-working industry.

SUBSTANCE: heating of lumbers is accomplished by hot air in an aerodynamic drying chamber in four-stepped duties with a parabolic-varying hardness with observance of condition (t₁, φ_1, P₁=1) > (t₂, φ_2, P₂=1.3) < (t₃, φ₃, P₃=1.5) < (t₄, φ₄, P₄=1) where t_i - the temperature of the drying agent by steps; °C;φ_i - the saturation of the drying agent by steps; P_i - the drying agent pressure caused by injection of hot air depending on the degree of closing of the exhaust gates, atm.

EFFECT: provided an intensified drying process, reduced consumption of electric powder.

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