DEVICE FOR RETAINING AND REPLACING BOILING PLATES IN A PLANT FOR TILLING, METAL CASING OF BILLING PLATE AND BILLING BOARD

摘要

1. Device for holding and replacing casting plates (19a, 20a), located opposite the casting hole of the metallurgical tank of the installation for continuous casting of molten metal, and casting plates (19a, 20a) have a sliding surface (19d, 20d) in which the casting channel is open and in which a sealing surface (19e, 20e) is formed for sealing the pouring opening of the metallurgical reservoir, said device comprising a pusher (10) allowing pushing the pouring plate to I move it from the reserve place to the workplace, and the plate at the workplace can occupy a casting position in which its casting channel is opposite the casting hole of the metallurgical tank, and a sealing position in which the sealing surface (19e, 20e) is opposite the metallurgical pouring hole of the tank, while the pusher is equipped with a means of ensuring its selective movement along two strokes: - a short stroke, when he pushes the casting plate into the casting position and the workplace; or - a long stroke, when he pushes the casting plate into the sealing position at the workplace; characterized in that it contains: - a detector (32) of the passage of the casting plate between the reserve place and the workplace; - a limiter switch (37, 39) of the pusher controlled the detector of the passage, and it may occupy: - the casting position, when the detector detects the passage of the casting plate, while the limit switch limits the stroke of the pusher to a short stroke; and - the sealing position in which the limit switch