Liha töötlemine
of rotation of the rotor. It is usually 300– the content of oxygen in the air mixture. Self-
350°C. The smoke is blown into the smoke ignition of the fluidized sawdust bed may be
duct by a fan that may be fixed on the shaft prevented even at a temperature as high as
of the rotor. Because of comparatively limited 750°C if the concentration of oxygen in the
access of air to the friction zone and low gas mixture is reduced to 6% (Balejko and
temperature, the smoke contains fewer prod- Miler 1988). The quality of the smoke pro-
ucts of thermal degradation and oxidation of duced in a fluidized bed at such a high tem-
lignin than that from the earlier described perature is equal to that from a smoldering-type
generators. The assets of the friction-type generator.
machine are low consumption of wood
and the fact that the smoke production can
be started and stopped instantaneously. Smokehouses