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.
A 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 α of about, for example, 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.
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BURKE PETER DAMIAN
DRY RODNEY JAMES
JPH01196492A | 1989-08-08 | |||
JPS5931812A | 1984-02-21 | |||
JPS59133996A | 1984-08-01 | |||
JPS53142902A | 1978-12-13 | |||
JPS4414653Y1 | 1969-06-23 | |||
JPS61133791A | 1986-06-21 | |||
JPS59152392A | 1984-08-31 | |||
JPH01153496A | 1989-06-15 | |||
JPH08188817A | 1996-07-23 | |||
JPS6120661A | 1986-01-29 | |||
JPH05505233A | 1993-08-05 |
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