Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled
AssigneeDeral S.p.A.
InventorEnzo Cibaldi
Life of this patent
Estimating the term…
Abstract
An aluminum remelting furnace for recycling scrap. In order to prevent atmospheric dispersion of toxic substances from the combustion of aluminum scrap contaminants, the furnace includes a loading chamber positioned on the upper wall of the furnace which is provided with a lower door and an upper door. During loading, the lower door is opened while the upper door remains closed to prevent the escape of the contaminant substances which remained enclosed within the loading chamber. After closing the lower door, the contaminant substances are fed to a post-combustion chamber and then to a gas treatment and purification system.
Claims20
An aluminum remelting furnace for melting aluminum scrap to be recycled, comprising:
- at least one melting chamber provided with at least one first burner, at least one first lateral mouth closable by a first door and having a hearth inclined towards at least one port;
- at least one waiting chamber for molten material, provided with at least one second burner, at least one second lateral mouth closable by at least one second door and having a base at a lower level than said hearth of said melting chamber, said hearth and said base communicating by way of said at least one port;
- gas purification means interposed between said waiting chamber and a stack;
- at least one loading chamber provided with a lower door which separates said loading chamber from said melting chamber and an upper door which separates said loading chamber from the atmosphere, said loading chamber being connected for fluid flow to the stack by way of the gas purification means.
An aluminum remelting furnace for melting aluminum scrap to be recycled, comprising:
- at least one melting chamber provided with at least one mouth for loading said melting chamber with aluminum scrap to be remelted, and at least one burner for melting said aluminum scrap;
- at least one loading chamber connected to said melting chamber which underlies said loading chamber, by way of a door;
- wherein said aluminum scrap contained in said loading chamber is preheated at least by heat leaving walls of the furnace;
- said scrap being loaded into said melting chamber by gravity all at once so as to limit to a minimum the dispersion into the atmosphere of heat, fumes and gaseous compounds having toxic substances which escape from the melting chamber when the door is opened.
Dependencies are inferred from the claim text.