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US 2015/0292050 A1Published application
Blowing method and device for producing steel using jets of hot air
AssigneePrimetals Technologies Austria GmbH
InventorKarl BROTZMANN
Life of this patent
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Abstract
A blowing method for producing steel from molten raw iron in converters. At least one jet of hot air is sprayed from at least one nozzle of at least one spraying device into the converter chamber onto the molten raw iron. The hot air exiting in the form of a jet has a pressure difference ranging from 0.05-0.1 Mpa between the inlet into the nozzle and the outlet out of the nozzle.
Claims21
1) A blowing method for producing steel from molten pig iron in a converter, comprising:
- spraying at least one jet of hot air from at least one nozzle of at least one spraying device into a converter space above molten pig iron and onto the molten pig iron, wherein there is a differential pressure of 0.05-0.1 MPa in relation to the hot air emerging as a jet, between entry into the at least one nozzle and exit from the at least one nozzle.
Dependencies are inferred from the claim text.