| 摘要 |
<p>An apparatus for vacuum treating molten steel includes a ladle (10) having a sidewall (12), a substantially circular closed bottom (24), and an open top (16). A first gas injector (30) is operably associated with the bottom for introducing a supply of a selected first gas into the ladle. A barrel degasser (36) is operably associated with the ladle for being introduced into the ladle through the open top. The degasser includes a generally cylindrical shell (38) having a single substantially continuous diameter opening therethrough defining a treatment space (48). A second gas injector (50/52) is radially directed and operably associated with the shell (38) for communicating with the treatment space (48). A source of the first gas is in flow communication with the first and second injectors. A vacuum source is operably associated with the barrel degasser for applying a vacuum to the treatment space.</p> |
