WINDDUESE ZUM DURCHBLASEN MIT UNTEN EINTRETENDEM WIND

摘要

The tuyere for bottom blowing through the metal comprises at least two tubes (1, 2) which are arranged coaxially, a central channel (3) thereof which is provided for supplying oxygen, and spiral guiding elements (2) fabricated as tubes which are mounted in the channel (4) provided for supplying a fuel. The total surface of cross-sections of element tubes (5) is chosen in the range of 0.1 to 0.5 of the cross-section of the channel (3) provided for supplying oxygen.