| 摘要 |
Installation for extraction of dust from fumes emitted in pouring a melt from a mixer to a ladle movable with the melt pour stream, including two gathering hoods to be located above the ladle and each adapted to be connected by exhaust shafts to a dust-extraction unit, wherein the hoods are spaced for arrangement on opposite sides of the trajectories taken by the pour stream, the hoods having opposed suction mouths extending over a length at least equal to the range of the said streams, each hood being partitioned off into boxes forming two groups each of at least one box, one of which groups communicates with a suction shaft while the other is shut off by means of dampers, the one group corresponding with boxes facing the source of emission of the fumes. |
