METHOD OF DETECTING BRIDGE IN MATERIAL FEEDER

摘要

PROBLEM TO BE SOLVED: To detect the occurrence of a bridge, quickly remove the bridge, and prevent a waste of energy. SOLUTION: The occurrence of a bridge is detected by facts that a signal indicating a lower limit level of a stock material in a hopper 1 cannot be obtained and that a signal indicating that a motor 2a of a screw conveyer 2 has no load applied or a signal indicating that a measurement value of a meter 13 is at a predetermined value or lower is obtained, thereby activating a rotary cracking means. COPYRIGHT: (C)2005,JPO&NCIPI