Improvement in the Cooling System of the BOF Lance Head
With the purpose of increase of firmness of heads to the upper oxygen lances of 250-ton converters the new design of five-nozzle tuyere head was developed and tested. Application of the design has allowed for a more rational distribution of refrigerant in tuyere head to increase its strength in 1,287 - 5,375 times in comparison with the usual design tuyere head.