Automated reversible-dryer control system

Details Automated reversible-dryer control system Automated reversible-dryer control system

1984-08-07

1986-05-06

Makay, Albert J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 48, 34 53, 34 55, 34133, F26B 2522

Patent

active

045862672

ABSTRACT:
A control system for a dryer capable of displacing a load to be dried in at least two directions periodically determines a time interval for the present temperature of the load to reach one predetermined temperature from another predetermined temperature while the load is being displaced in a selected one of the two directions. That time interval is representative of the present condition of the load. A comparater compares the time interval to a reference time interval which is representative of a desired condition of the load. A control circuit applies heat to the load to be dried in response to the result of the comparison. When the time interval equals the reference time interval the load has reached the predetermined desired condition and the dryer is shut off.

REFERENCES:
patent: 3210862 (1965-10-01), Lycan
patent: 3254423 (1966-06-01), Ruelle
patent: 3309783 (1967-03-01), Worst
patent: 3882613 (1975-05-01), Wilson
patent: 3942265 (1976-03-01), Sisler et al.
patent: 4206552 (1980-06-01), Pomerantz et al.
patent: 4267643 (1981-05-01), Haried
patent: 4412389 (1983-11-01), Kruger

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