Melting furnace and method for melting metal by means of an electrically heatable immersion heating element
OwnerRudolf HILLEN, Florian KULAWIK +1inventors
InventorsRudolf HILLEN, Florian KULAWIK, Theodoor VAN DER HOEVEN
Life of this patent
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Abstract
A melting furnace for melting metal may have a first heating device having at least one electrically heatable immersion heating element. The furnace may also have a circulating arrangement designed to create a flow of molten metal within the melting furnace. A method for melting metal using the melting furnace is also provided.
Claims21
1-20. (canceled)
A melting furnace for melting metal, comprising:
- at least one charging opening for supplying metal to be melted;
- a first heating device with at least one electrically heatable immersion heating element;
- and
- a circulating device, which is configured to produce a molten metal flow inside the melting furnace, which circulates between the circulating device and the immersion heating element and flows past the charging opening, and
- a ring channel, which is an annular melt channel for the molten metal flow,
- wherein:
- the heating device and the circulating device are arranged in the ring channel and/or wherein the ring channel is accessible through the charging opening,
- characterized in that the melting furnace has a free inner area around which the ring channel extends, wherein the inner area has an area of at least 1 m2.
The melting furnace according to claim 20, wherein the heating device comprises a plurality of immersion heating elements, wherein each immersion heating element is arranged at least partly outside a flow shadow of at least one corresponding other immersion heating element.
The melting furnace according to claim 20, characterized in that the charging opening is positioned vertically above the molten metal flow and the molten metal flow can be produced such that it flows against a charging material supplied to the melting furnace through the charging opening at a flow velocity.
The melting furnace according to claim 20, further comprising at least one second heating device, which is positioned or can be positioned outside the molten metal and which is e configured to supply heat to the molten metal and/or a metal to be melted.
The melting furnace according claim 20,
- further comprising a lid and a lid-lifting device, which is configured to lift the lid for making the ring channel accessible.
A method for producing a melting furnace with a ring channel, in which a molten metal can be circulated, comprising:
- connecting individual modules to form at least one portion of the melting furnace and so that the melting furnace has a free inner area which the ring channel extends around, wherein each module comprises a channel segment of the ring channel and an inflow opening and at least one outflow opening, wherein the inner area has an area of at least 1 m2.
Dependencies are inferred from the claim text.