Process for the temperature control of a drying apparatus
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United States of America Patent
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-
Apr 28, 1987
Grant Date -
N/A
app pub date -
Nov 30, 1984
filing date -
Dec 2, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for controlling the temperature of a drying apparatus including a cylindrical rotor having a plurality of heating means which are independent of each other and arrayed in an advance direction of raw material, the process comprises controlling the heating means in response to measurements of the flow rate and moisture content of the raw material charged into the rotor and measurements of temperatures of respective sections of the rotor, each section corresponding to each heating means so that the temperature of each section is changed in accordance with a flow rate characteristics curve of each section and controlling the heating means so that a bias temperature for compensating for a lag in thermal response dead time of each heating means is applied prior to changing the temperature of each section in accordance with a flow rate characteristics curve by a feed back controlling at least a final heating means in response to the measurement of the moisture content of the dried raw material discharged from the rotor.
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