Blowing spear for fabrication of metals and maintenance of loading and blowing operational conditions
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United States of America Patent
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Aug 15, 2017
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N/A
app pub date -
Jul 8, 2013
filing date -
Jul 10, 2012
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Abstract
The current invention refers to a blowing spear (100) used in the primary refining process for obtainment of steel, developed in such a way to maintain the loading and blowing operational conditions, comprising at the base a copper nozzle (101) to which is welded in its extremity a tube (102), comprising yet a module (125) with cleaning output (103) and positioned above module (125) a steel tube (118) and on its upper extremity, the head (107) that comprises a cooling liquid inlet (115), a gases inlet (116) and a cooling liquid outlet (117), comprising yet the spear (100) in its interior the inner tube (122) responsible for the gas passage and the intermediate tube (123) responsible for the division between the cooling liquid inlet flow and its outlet passing mandatorily through the copper nozzle (101).
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