Method of melting metals
AssigneeNippon Sanso Corporation
InventorsToshio Suwa, Nobuaki Kobayashi, Naoji Konno
Life of this patent
Estimating the term…
Abstract
Disclosed is a method of melting a metal. In a melting furnace, a metallic material is melted by heating it directly with the flame from a fuel burner using an oxygen gas having a purity of 60 to 100% as a combustion assisting gas. Meanwhile, the combustion assisting gas is heated before it is fed to the burner.
Claims6
A method of melting a metallic material, which comprises melting a metallic material introduced to a melting furnace by heating the metallic material directly with a flame from a fuel burner using micropowdery coal as a fuel and using an oxygen containing gas having oxygen content of 60 to 100% as a combustion assisting gas to produce a combustion gas, said combustion assisting gas being heated to a temperature of at least 400.degree. C. before the combustion assisting gas is fed to said burner, and said combustion gas, after being used for heating said combustion assisting gas, being partly pressurized to be used as a carrier gas for said micropowdery coal.
Dependencies are inferred from the claim text.