A SYSTEM FOR ALIGNING LADLE AND TUNDISH IN BLOOM CASTER

摘要

A photosensor based system that is simple, low cost and at the same time, highly reliable and safe, for aligning of ladle with tundish at continuous bloom casting. The system of alignment minimizes delay in said aligning time and ensures that liquid steel pours at the center of tundish. The angular position change during ladle change over is sensed by the photosensors receiving the incident light from LEDs and generating signals accordingly. Two rotating metal strips attached to the ladle stand arm generates shadow by obstructing light emitted from the LEDs and incident on the respective phototransistors, being positioned in between the stationary set of sensor stack and its illuminating LEDs, in such a way that it give proper indication in the pulpit in said LED based display unit displaying the angular positions to match with that of the tundish. The present system of alignment also avoids the accumulation of metal near the tundish wall.