C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 7/20 (2006.01) F27D 99/00 (2010.01) C21B 7/18 (2006.01) F27B 1/20 (2006.01) F27D 3/00 (2006.01)
Patent
CA 2370157
The invention relates to a throat closing device for shaft furnaces, especially blast furnaces having a material feeding hopper (1), to which a temporarily rotating rotary hopper (2) which is sealed with regard to the stationary parts (3) is connected. The inventive throat closing device is produced such that it has a less complex construction and is easier to install, and can be easily serviced due to the provision of a sealing unit (5) comprised of an adjusting flange (7) which is arranged above the rotary hopper (2), is complementary to the hopper flange (6) thereof, can be lifted and lowered, and which comprises seals (8, 9) located on the flange underside. Said sealing unit is configured in a spanning wall (12) which comprises a compensating element (13) and which connects the adjusting flange (7) to the stationary part (3) of the rotary hopper (2).
L'invention concerne une fermeture de gueulard pour fours droits, notamment hauts fourneaux à trémie d'entrée (1), à laquelle se raccorde une trémie rotative (2) étanchéifiée vis-à-vis des parties fixes (3), qui est à rotation temporaire. L'invention vise à ce que cette fermeture de gueulard soit de structure simple et aisée à monter et qu'elle offre de bonnes possibilités d'entretien, grâce à une unité d'étanchéité (5) comprenant un flasque réglable en hauteur (7), complémentaire du flasque de trémie (6) et monté au-dessus de la trémie rotative (2), qui présente des garnitures d'étanchéité (8,9) situées sur la face inférieure du flasque. Cette unité d'étanchéité est formée avec un élément de compensation (13) dans une paroi de chevauchement (12) reliant le flasque réglable (7) à la partie fixe (3) de la trémie (2).
Korbik Elmar
Marciniak Heinz-Peter
Overlander Jorg
Riches Mckenzie & Herbert Llp
Sms Demag Aktiengesellschaft
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