DEVICE FOR PUNCHING FILLER OF LADLE

摘要

PURPOSE: A filler punch of a ladle is provided to prevent a generation of an oxidized inclusion by isolating a contact between a melted steel with air. CONSTITUTION: In transferring a ladle(110) on a tundish(140), a long nozzle is fixed in a collect nozzle(112) with a jig(180). Vertical positions of the collect nozzle(112) and a top nozzle(111) are conformed by sliding a lower plate of a cassette(110). A branch pipe(10) is fixed in an electronic opening/closing device and raised up to a hardened filler(130). In raising the branch pipe(10), the branch pipe(10) lifts the filler(130) by guiding inside the long nozzle, the collect nozzle(112) and the top nozzle(111). Melted steel is flowed into the branch pipe(10) by depressing the filler(130). The top nozzle(111) is changed into red by flowing the melted steel from the ladle(100). A worker releases a fixing pin of the electronic opening/closing device from a branch pipe hook by discriminating the color change of the top nozzle(111). The branch pipe(10) is fallen into the tundish(140). A melted steel discharge port is formed inside a weight(12) to prevent a hardening of the melted steel inside the branch pipe(10) and to easily fall the branch pipe(10). The fallen branch pipe(10) remains in a slag layer by oxidizing after hardening inside the tundish(140).