Air Products and Chemicals, Inc.

Kyle J Niemkiewicz

Xiaoyi He

Anup Vasant Sane

Shailesh Pradeep Gangoli

Michael David Buzinski

Avishek Guha

Russell James Hewertson

Gregory J Buragino

Anshu Gupta

Russel James Hewertson

A method of operating a BOF bottom stir tuyere having an inner nozzle surrounded by an annular nozzle, including during a hot metal pour phase and a blow phase, flowing an inert gas through both nozzles; during a tap phase, initiating a flow of a first reactant through the inner nozzle and a flow of a second reactant through the annular nozzle, and ceasing the flow of inert gas through the nozzles, wherein the first and second reactants includes fuel and oxidant, respectively, or vice-versa, such that a flame forms as the fuel and oxidant exit the tuyere; during a slag splash phase, continuing the flows of fuel and oxidant to maintain the flame; and after ending the slag splash phase and commencement of another hot metal pour phase, initiating a flow of inert gas through both nozzles and ceasing the flows of the first and second reactants.

Bottom stirring tuyere and method for a basic oxygen furnace

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Coopersburg, PA, United States of America

Kyle J Niemkiewicz