device for expansion of the abstichoeffnung metallurgical have a trunk used to be.

摘要

1. An arrangement for removing nozzle bricks (2) inserted in the tap hole (8) of metallurgical vessels, comprising a machine frame (7; 29, 39) adapted to be supported on the external side of the metallurgical vessel and in which an extraction means (16, 17, 22; 32) extending in the axial direction of the nozzle brick (2) and adjustable in length in this axial direction by means of an extraction pressure medium cylinder (12; 30) is mounted, wherein at least two clamping claws (20; 36) are fastened to the end of the extraction means (16; 32) leading through the nozzle brick (2) towards the interior of the metallurgical vessel, which clamping claws are placeable into and out of engagement with the nozzle brick (2) by means of a straddling device (23, 24; 33, 35).