Tank furnace for the metallurgical treatment of non-ferrous metals
AssigneeShamprogetti S.p.A.
InventorsAntonio Carminati, Andrea Perillo
Life of this patent
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Abstract
A tank furnace for the metallurgical treatment of non-ferrous metals, consisting of a refractory hearth in the form of an inverted arch disposed on perimetral plate assemblies which are able to move in order to compensate for hearth expansion, a containing belt formed of metal box elements, and walls and a crown of refractory material, said elements being separately supported by an external frame and being able to slide relative to each other due to thermal expansion.
Claims8
A tank furnace for the metallurgical treatment of non-ferrous metals having an external support frame for supporting components which comprises
- side walls,
- a crown of refractory masonry connecting with said side walls,
- a rectangular hearth in the form of an inverted arch forming a bottom portion of the tank furnace,
- a perimetral metal plate assembly communicating with said hearth at said side walls, and adapted to move in the horizontal direction of expansion of the hearth said inverted arch shaped hearth being supported by said perimetral metal plate assembly,
- a metal structure forming a containing belt disposed on said perimetral metal plate assembly,
- a plurality of elastic elements or reaction springs operatively associated with said perimetral metal plate assembly and biased to compress said perimetral metal plate assembly against the hearth, and
- a plurality of hinged bars attached to the base of the external frame and supporting the perimetral metal plate assembly, said hinged bars enabling the plate assemblies to move in said horizontal direction.
Dependencies are inferred from the claim text.