Patent ID: 6171545
Filing Date: 2001-01-09
Classification: C21C

Abstract:
Lance holder apparatus for oxygen lance tubes comprising an oxygen lance tube, a collet adaptable to a diameter of the oxygen lance tube, a holder, a pressure casing on the holder, an adjuster connected to the pressure casing for positioning the pressure casing slidably over the collet, a deformable sealing casing for the collet, a seal on the deformable sealing casing for clamping the lance tube, a pressure piston for receiving the sealing casing with the seal, the sealing casing and the seal being slidable with a longitudinal restriction in the holder acting on the seal, a pressure medium of O.sub.2 for acting on the seal positioned in an interior space of the holder, and a bypass with safety block pistons provided in front of the pressure piston in a flow of the pressure medium in the interior space or connectable with atmosphere being unsealable by the adjuster.