Device for thermal treatment of scrap
AssigneeSwiss Aluminium Ltd.
InventorBernard Bouille
Life of this patent
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Abstract
A device for thermally treating scrap employs a charging facility for conveying scrap to a furnace chamber. The charging facility is fitted with a waste gas flue and a loading port and has a pre-loading space in which the scrap is pre-heated. The device is easily operated and can be run with relatively little loss of energy by having the pre-loading space of the charging facility releasably connected to the furnace chamber and/or waste gas flue such that the pre-loading space is fed with waste heat from the furnace chamber. Preferably the pre-loading space is part of a waste gas or waste heat circuit. The pre-loading space is also provided with an extendable unit which can be pushed into the mouth or loading port of the furnace for feeding the scrap to the furnace.
Claims9
An apparatus for pre-heating and feeding metal scrap to a furnace chamber comprising a heating chamber having a top wall, a bottom wall and a sidewall defining said chamber, a scrap metal inlet provided in said top wall at a location remote from said furnace chamber and a scrap metal outlet provided in said bottom wall at a location proximate to said furnace chamber, means provided in said heating chamber for moving said metal scrap from said scrap metal inlet to said scrap metal outlet, loading means positioned below said heating chamber adjacent to said scrap metal outlet for receiving said scrap metal from said scrap metal outlet, said loading facility including means for feeding said metal scrap to said furnace chamber and means associated with said furnace chamber and said heating chamber for communicating the heated waste gas from said furnace chamber to said heating chamber for pre-heating said metal scrap.
Dependencies are inferred from the claim text.