Method and apparatus for feeding a stacke of metallic sheets into a melting furnace
OwnerTero Raitanen, Jukka Saamanen +1inventors
InventorsTero Raitanen, Jukka Saamanen, Tom Marttila
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Abstract
A method for conveying stacks of metallic sheets, in particular stacks of metallic cathodes, into a melting furnace. The stack of metallic sheets (1) is gripped by a grapple element (10), such as a lifting grapple, which is arranged on a transfer device, and the stack of metallic sheets (1) is transferred into the melting furnace (2) chamber (14), and that at a predetermined height inside the furnace chamber, preferably relatively near the bottom of the furnace and/or melt, the metallic stack (1) is released.
Claims10
A method for conveying stacks of metallic sheets, into a melting furnace, the method comprising gripping the stack of metallic sheets by a grapple element which is arranged on a transfer device, and transferring the stack of metallic sheets into a melting furnace chamber, and that at a predetermined height inside the furnace chamber releasing the metallic stack by acting on the grapple element with a mechanical arrangement.
A method according to claim wherein the stack of metallic sheets is turned to a vertical position before it is gripped by the grapple element.
An apparatus for conveying stacks of metallic sheets to a melting furnace wherein the apparatus comprises a lifting device and a grapple device arranged on it and elements arranged on the grapple for the release of the stack of metallic sheets into the chamber of a melting furnace at a predetermined height, the grapple device containing a grapple frame, which is arranged movably on a lifting frame of the grapple, and clamp elements hinged scissor-like onto the grapple frame, and attached in a hinged way at the upper ends to the lifting frame by support arms so that when the grapple frame moves downwards with regard to the lifting frame, the clamp elements move into a clamping position and that when the grapple frame moves upwards with regard to the lifting frame, the clamp elements move towards an open position.
Dependencies are inferred from the claim text.