Method and apparatus for electric steelmaking

F - Mech Eng,Light,Heat,Weapons – 23 – D

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F23D 14/32 (2006.01) C21C 5/52 (2006.01) F23D 11/10 (2006.01) F23D 14/22 (2006.01) F23D 14/62 (2006.01) F23D 17/00 (2006.01) F27B 3/20 (2006.01) F27B 3/22 (2006.01) F27D 3/16 (2006.01)

Patent

CA 2198901

A burner/injector (200) and method for providing a localized impingement flame or multiple flames for scrap heating and melting through use of a fluid fuel and at least one oxygen rich oxidizing gas. The burner/injector (200) includes a liquid-cooled combustor for generating an impinging flame directed toward a scrap pile and a structure for injecting a controllable amount of solid carbonaceous fuel (204) and a controllable flow of high velocity oxidizing gas (232) into space that has been previously occupied by the impinging flame.

Ensemble brûleur/injecteur (200) et procédé de production d'une flamme à impact localisé ou de flammes multiples, afin de chauffer des déchets métalliques et de les fondre par l'intermédiaire d'un combustible liquide et d'au moins un gas d'oxydation riche en oxygène. L'ensemble brûleur/injecteur (200) comprend un brûleur à deux étages de gazéification servant à générer une flamme de collision dirigée vers une pile de déchets métalliques et une structure servant à injecter une quantité réglée de combustible carboné solide (204), ainsi qu'un flux réglé de gaz d'oxydation à vitesse élevée (232) dans l'espace précédemment occupé par la flamme de collision.

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