Nozzle arrangement for injecting gases or solid matter into...

Details Nozzle arrangement for injecting gases or solid matter into... Nozzle arrangement for injecting gases or solid matter into...

C - Chemistry, Metallurgy

21

C

39/105, 39/107

C21C 5/48 (2006.01) B22D 1/00 (2006.01) B22D 41/42 (2006.01) F27D 3/16 (2006.01) F27D 3/18 (2006.01)

Patent

CA 1266970

ABSTRACT OF THE DISCLOSURE A nozzle arrangement for injecting gases or solid matter into a ladle containing molten metal, e.g. in the region of a slide gate, the nozzle insert of which has the form of a truncated cone provided with a through-flow channel, and which nozzle insert is to be placed in position in a nozzle brick of the ladle walls having a conical opening. The conical outer surface of the nozzle insert and the conical inner surface of the opening of the nozzle brick have a corresponding gradient for a self-locking fit, pref- erably of 5°, and the conical inner surface of the opening of the nozzle brick is lined with a sheet-iron lining of minor material thickness having the same gradient. This nozzle arrangement allows a more rapid fitting and replacement of the nozzle insert while ensuring improved accuracy in the fit of the nozzle insert.

509474

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