公开(公告)号：US20170218470A1

公开(公告)日：2017-08-03

申请号：US15328712

申请日：2015-08-04

Applicant: Primetals Technologies Austria GmbH

Inventor： Markus ABEL ,  Hannes BEILE ,  Markus DORNDORF ,  Alexander MÜLLER ,  Ralf PITZ

IPC: C21C5/52 ,  C21C5/46 ,  F27D3/16 ,  F27B3/20 ,  F27B3/22

CPC classification number: C21C5/5217 ,  C21C5/4606 ,  F27B3/205 ,  F27B3/22 ,  F27D3/16 ,  F27D3/18 ,  F27D99/0033 ,  F27D2003/169 ,  Y02P10/216

Abstract: A burner-lance unit (1) includes at least two gas connections (2a, 2b, 2c), a burner tube (3), and a lance tube (4) that is placed concentrically in the burner tube (3). The burner tube (3) and the lance tube (4) both have a gas inlet end and a gas outlet end (15). The lance tube (4) has a de Laval nozzle (4a) at the gas outlet end thereof. The de Laval nozzle (4a) is releasably connected to the lance tube (4). The burner tube (3) has a burner nozzle (3a) which is releasably connected to the burner tube (3).