Metal reduction and melting process and apparatus
AssigneeIpcor NV
InventorLouis J. Fourie
Life of this patent
Estimating the term…
Abstract
A metal reduction and melting process which involves the heating of a burden comprising a metal containing component and a carbon containing component in a channel type induction furnace in order to reduce such metal containing component, in which at least part of the gaseous products of the process is utilized for preheating the burden; and apparatus for carrying out such preheating.
Claims34
A metal reduction and melting process which involves the heating of a burden comprising a metal containing compound and a carbon containing compound in a channel induction furnace in order to reduce such metal containing compound and to form gaseous products in the furnace, and to utilize at least part of such gaseous products for preheating the burden, which process includes the steps of feeding the burden to the furnace in at least one chamber which is provided with at least one passage extending around or through the at least one chamber, and passing at least some of said gaseous products through the at least one passage and wherein the at least one chamber and the at least one passage being sealed off relative to one another so that no gaseous product can pass between them.
An apparatus for preheating the burden of a metal reduction and melting process which involves the heating of a burden comprising a metal containing component and a carbon containing component in a channel induction furnace in order to reduce such metal containing component and to form gaseous products in the furnace;
- and which involves utilizing at least part of the such gaseous products for preheating the burden, wherein the apparatus comprises at least one chamber through which the burden is fed to the furnace, and one or more passages extending around or through the at least one chamber, through which passages gaseous products formed in the process pass in order to preheat the burden in the at least one chamber;
- and the at least one chamber and the at least one passage being sealed off relative to one another so that no gaseous product can pass between them.
Dependencies are inferred from the claim text.