| 摘要 |
<p>PURPOSE: A direct refining container is provided to minimize the loss of melting matter and solid matter accompanying exhaust gas, by providing an exhaust gas duct which extends from a refining container, with the first section which has a relatively slight upward inclination to the horizontal, and the second section which extends with a relatively slight gradient to the horizontal, in order. CONSTITUTION: The refining container for directly refining iron ore has a sidewall (5) which forms a roughly cylindrical barrel including an upper barrel section(51) and a lower barrel section (53), upward from the side (56) of a hearth, and is provided with an extended exhaust gas duct (9) outward from its upper section. Moreover, it has a front furnace (57) and a tap hole (61) for discharging the molten metal continuously. In this case, the exhaust gas duct (9) is provided with the first section (31) which inclines upward at an angle alpha of about 7°to the horizontal from an inlet end (63), and the second section (33) with a steep gradient which extends vertically from the other end of the first section (31). As a result, this container minimizes the loss of the molten matter and the solid matter which are discharged together with the exhaust gas.</p> |
