Submerged scraper conveyor automatic speed control

Details Submerged scraper conveyor automatic speed control Submerged scraper conveyor automatic speed control

G - Physics

05

B

341/48

G05B 13/00 (2006.01) B65G 43/02 (2006.01) F23H 11/24 (2006.01) H02P 23/00 (2006.01)

Patent

CA 1226922

SUBMERGED SCRAPER CONVEYOR AUTOMATIC SPEED CONTROL ABSTRACT OF THE DISCLOSURE In a submerged scraper conveyor (10), an automatic voltage control system controls the speed of variable speed drive (32), in turn the speed of follower sprocket (22) and in turn the speed of drag chain (16) as a function of the torque on the headshaft (21). The tension on endless roller chain (36) is monitored by load cell (40) as indicative of the torque on the headshaft (21) and a standard process control signal is generated therefrom. The speed of variable speed drive (32) is varied as a function of the measured torque between a lower speed drive limit and an upper speed drive limit.

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