| 摘要 |
A blast furnace having an apparatus and method for opening and closing the bottom aperture of the blast furnace material hopper which is arranged on the blast furnace entrance is provided. An apparatus for opening and closing the bottom aperture of the optical path material hopper having an opening/closing device of the bottom aperture(10) of the material hopper(11) arranged on the entrance of blast furnace having opening, and the flap plate(12) which is particularly drivable. The liner movement, in which the flap plate has clear skies and which is materially perpendicularity in region in aperture, the flap plate is connected to the linkage arrangement(13) by the mode performing the pivot motion in the open end. |
