Method and apparatus for installing a nozzle insert in a steelmaking ladle
AssigneeBethlehem Steel Corporation
InventorsAlvin M. Nestler, John P. Hoffman, John L. Hogan, Edward T. Witek
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Abstract
A method and apparatus for inserting a nozzle into the discharge bore of a steelmaking vessel including a carriage and a clamp means for demountably attaching the nozzle to the carriage. The apparatus further includes means to move the carriage toward or away from the steelmaking vessel while at the same time rotating the nozzle about its longitudinal axis as it is pressed into the discharge bore.
Claims26
Apparatus for inserting a nozzle into the discharge bore of a steelmaking vessel, comprising:
- a) a support frame,
- b) a carriage attached to said support frame, said carriage having means to move in a longitudinal direction along an X--X axis,
- c) means to demountably attach said nozzle to said carriage, and
- d) means including a cam to move said carriage in said longitudinal direction to insert said nozzle into said discharge bore, said cam simultaneously imparting a fixed amount of rotation to said nozzle in said discharge bore.
Apparatus for inserting a nozzle into the discharge bore of a steelmaking vessel, comprising:
- a) a carriage and a support frame, said support frame having a bushing end to receive said carriage and at least one sidewall extending from said bushing end, said carriage extending through a bore in said bushing end and including a gauge plate having a surface contiguous with an inside surface of said side wall of said support frame, said carriage having means to move in a longitudinal direction along an X--X axis,
- c) means to demountably clamp said nozzle to said gauge plate, and
- d) means including a cam to move said carriage in said longitudinal direction to insert said nozzle into said discharge bore, said cam simultaneously imparting a fixed amount of rotation to said nozzle in said discharge bore.
A method of inserting a two piece refractory/steel nozzle insert into a discharge bore of a steelmaking vessel having a steel shell and a refractory lining, the two piece refractory/steel nozzle insert having a refractory nozzle and a steel lockring, the steps comprising:
- a) demountably attaching said refractory nozzle to a ram portion of a nozzle insert tool,
- b) coating said refractory nozzle with an adhesive,
- c) aligning said nozzle insert tool with said discharge bore,
- d) extending said ram to press said refractory nozzle into said discharge bore, said ram being rotated by a cam, said cam imparting a fixed amount of rotation to said refractory nozzle penetrating said discharge bore,
- e) detaching said nozzle insert tool from said refractory nozzle inserted into said discharge bore, and
- f) attaching said steel lockring to said steel shell of said steelmaking vessel.
Dependencies are inferred from the claim text.