Method of heating bulk material, especially granular plastic material
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United States of America Patent
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-
Sep 17, 2002
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jan 21, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for heating bulk materials, especially granular plastic material, in which the bulk material is fed to a vessel and exits the vessel based on the consumption. A heat-transfer gas flow is simultaneously fed to the vessel and conducted either cocurrently with or countercurrently to the flow of granular material. The gas inlet temperature or quantity of gas are thereby varied in such a way that the temperature of the granular material at the outlet corresponds to a target temperature value required for the granular material.
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