F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
53/350
F27B 1/22 (2006.01) C21B 5/00 (2006.01) C21B 5/06 (2006.01) F27B 1/08 (2006.01)
Patent
CA 1202789
ABSTRACT "INCREASING BLAST TEMPERATURE" In a method of utilizing a plasma generator to increase the blast temperature in a shaft furnace for melting and possible reduction of metals and/or metal oxides, the thermal energy produced in the plasma generator is transferred, in order essentially to prevent the formation of nitrogen oxide, from the plasma generator to the blast gas via a gas which is inert or oxidizing in relation to the metal to be processed, the product of the oxygen mol fraction and the nitrogen mol fraction in the gas used being less than or equal to 0.02.
427858
Johansson Borge
Santen Sven
Fetherstonhaugh & Co.
Skf Steel Engineering Ab
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