| 摘要 |
A rotary furnace (1) for the heat treatment of solids includes at least one rotary tube into which the solids are introduced and a first heater outside of the rotary tube that makes it possible to conduct a portion of the heat treatment in the absence of oxygen. A second heater for heating feedstock to improve heat treatment is formed by a second heating element (4, 4′, 4″) positioned above the feedstock when the furnace rotates and at least one deflector panel that surrounds the heating element (4, 4′, 4″) is provided on the side opposite to the feedstock (2) and arranged inside of the rotary tube. The rotary furnace is used to roast solid biomass.
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