Arrangement and method for unloading raw material
AssigneeMaillefer S.A.
InventorsPetri Vetterstrand, Jorma Leppänen, Juha Hiltunen
Life of this patent
Estimating the term…
Abstract
An arrangement and method for unloading raw material in connection with a cable manufacturing apparatus. The arrangement includes a feed inlet connected to the cable manufacturing apparatus for feeding raw material into the cable manufacturing apparatus, the feed inlet being adapted to be connected to an unloading spout of the raw material. The arrangement further includes a seal for opening and closing the feed inlet when the unloading spout is connected to the feed inlet.
Claims15
An arrangement for unloading raw material in connection with a cable manufacturing apparatus, the arrangement comprising a feed inlet connected to the cable manufacturing apparatus for feeding raw material into the cable manufacturing apparatus, the feed inlet being adapted to be connected to an unloading spout of the raw material, the arrangement comprising sealing means for opening and closing the feed inlet when the unloading spout is connected to the feed inlet, the sealing means being arranged to divide the feed inlet into a first part adapted to be connected to the unloading spout and a second part connected to the cable manufacturing apparatus, the sealing means further comprising a shutter valve opening and closing the feed inlet when the unloading spout is connected to the feed inlet and the arrangement further comprising a first gas supply arranged to supply gas to the first part of the feed inlet cleaning the first part.
A method for unloading raw material in connection with a cable manufacturing apparatus, the method comprising the following steps
- connecting an unloading spout to a feed inlet;
- and
- opening the unloading spout for feeding raw material into the cable manufacturing apparatus through the feed inlet, the method further comprising sealing the feed inlet with sealing means operable for opening and closing the feed inlet when the unloading spout in connected to the feed inlet opening the sealing means after the unloading spout is connected to the feed inlet, and closing the sealing means after the raw material is fed into the cable manufacturing apparatus and before the unloading spout is disconnected from the feed inlet after feeding the raw material into the cable manufacturing apparatus, the method further comprising the step of supplying cleaning gas into the feed inlet between the sealing means and the unloading spout connected to the feed inlet before opening the unloading spout or before opening the sealing means.
Dependencies are inferred from the claim text.