公开(公告)号：CA2260181A1

公开(公告)日：1998-01-22

申请号：CA2260181

申请日：1997-07-11

Applicant: TECH RESOURCES PTY LTD

Inventor： BATES CECIL PETER ,  DRY RODNEY J ,  WEBER RALPH M

IPC: F27D3/18 ,  C21C5/32 ,  C21C5/46 ,  C21C5/48 ,  F27D3/16 ,  F27D9/00 ,  C21C5/35

Abstract: A lance (5) for injecting a feed material, preferably a solid feed material, into a metallurgical vessel, is disclosed. The lance comprises: an inlet (21) for introducing the feed material into the lance; an outlet (23) at a forward end of the lance (5) for discharging the feed material from the lance (5); a hollow elongate member (25) that defines a passageway (33) for the feed material between the inlet (21) and the outlet (23) and is adapted to be cooled by a first cooling fluid; and an outer jacket (35) positioned around a section of the length of the member (25) and is adapted to be cooled by a second cooling fluid.