Continuous drier for veneer

Details Continuous drier for veneer Continuous drier for veneer

1987-11-20

1989-05-23

Tanner, Harry B.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 29, 34 44, 34 89, 34216, F26B 2112

Patent

active

048317470

ABSTRACT:
The invention relates to a continuous dryer for veneer. In addition to terature sensors near the inlet and middle zones to determine heat demand and to control heat input in these zones, the dryer also has an infrared detector at the exit end to determine surface temperature and thus to determine residual moisture of the veneer. The signal from this infrared detector is processed to give a control signal for blowers in the drying zones near the exit. By this means, more precise and reliable control in final moisture is achieved. Variations in dryer load, initial moisture, wood density, and sheet thickness can be better tolerated.

REFERENCES:
patent: 3350789 (1967-11-01), Davies
patent: 3625812 (1971-12-01), Gudaz
patent: 3959723 (1976-05-01), Wagner
patent: 4170073 (1979-10-01), Ignatowicz
patent: 4183292 (1980-01-01), Banks
patent: 4204337 (1980-05-01), Roos et al.
patent: 4494315 (1985-01-01), Roos et al.

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