Apparatus for injecting solid particulate material into a vessel

摘要

Smelting apparatus comprises a vessel ( 11 ) and a solids injection lance ( 27 a) extending through an opening in the wall of vessel barrel ( 16 ) into the interior space of the vessel. Lance ( 27 a) includes a central core tube ( 31 ) through which to pass solid particulate material into the vessel and an annular cooling jacket ( 32 ) surrounding the central core tube ( 31 ) throughout a substantial part of its length. Lance ( 27 a) has a mounting structure ( 61 ) comprising a tubular part ( 60 ) extended about cooling jacket ( 32 ) and about twice the diameter of the cooling jacket. Tubular part ( 60 ) fits within a tubular lance mounting bracket ( 62 ) welded to the shell ( 16 a) of vessel barrel ( 16 ) to extend outwardly from the vessel. The lance is held within mounting bracket ( 62 ) by clamping bolts acting between flanges ( 63,65 ) on tubular part ( 60 ) and tubular bracket ( 62 ). Tubular part ( 60 ) is double walled and the interior space between its walls is divided into water flow passages through which cooling water flows from a water inlet ( 68 ) to an outlet ( 69 ).