Rotary furnace for radiative heat treatment of solids
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United States of America Patent
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Jul 28, 2015
Grant Date -
Jan 27, 2011
app pub date -
Jul 20, 2010
filing date -
Jul 21, 2009
priority date (Note) -
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Abstract
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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