| 摘要 |
<p>The invention concerns movable hoods for aspirating secondary fumes in steel mills and foundries, whereby said hoods are suitable for cooperating with smelting furnaces, converters, crucibles, etc. to aspirate the fumes given off by the same and comprise in coordinated cooperation: - lengthwise aspirating duct means (20) together with preferential closable (21) intake means (19) and movable hood means (113) installed on crane means (15) or on bridge crane means and including means (17) to be connected temporarily to said preferential closable intake means (19).</p> |
