Lance/burner for molten metal furnace

Details Lance/burner for molten metal furnace Lance/burner for molten metal furnace

C - Chemistry, Metallurgy

21

C

C21C 5/32 (2006.01) C21C 5/52 (2006.01) F27B 3/22 (2006.01) C21C 5/46 (2006.01)

Patent

CA 2232219

A method for effectively providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal.

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