| 摘要 |
<p>Gravitational type furnace for the direct reduction of mineral iron comprising a median reaction zone (14) in which the reactions to reduce the mineral iron occur, means (11) to feed the mineral iron to said reaction zone (14), means (18) to introduce a mixture of reducing gas into said reaction zone (14) and means (15) to discharge the reduced metal iron, said discharge means comprising at least two extremities (15a-15c), shaped like a cone or a truncated cone, with the taper facing downwards, each of which being provided with a corresponding lower aperture (16a-16c) through which said reduced metal iron can be selectively discharged in a controlled and independent manner.</p> |
