发明名称 APPARATUS FOR OPENING AND CLOSING OF ELECTRIC ARC FURNACE TAP HOLE
摘要 <p>PURPOSE: A device for switching a steel-tapping hole of electric furnace is provided to improve the safety of operator by preventing the deformation of a flap door and switching a steel-tapping hole without the interference of a steel-tapping hole. CONSTITUTION: A device for switching a steel-tapping hole of electric furnace comprises a flap door(7) and an adhering unit(19). The flap door is separated from the steel-tapping hole of electric furnace. The flap door circles using a circulating unit and switches the steel-tapping hole. According to the supply of the fluid, the adhering unit contacts the flap door to the steel-tapping hole. The flap door comprises an upper plate, a plurality of recessed holes and a rounded portion.</p>
申请公布号 KR20110120605(A) 申请公布日期 2011.11.04
申请号 KR20100040084 申请日期 2010.04.29
申请人 HYUNDAI STEEL COMPANY 发明人 LEE, SANG HOON;PARK, SEUNG DO
分类号 C21C5/52;F27B3/10 主分类号 C21C5/52
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