100t转炉氧枪喷头参数优化实践

针对鞍钢股份有限公司炼钢总厂100 t转炉冶炼供氧时间长、耗氧量大、钢铁料消耗高等问题,对原氧枪喷头参数进行了优化,包括喷头喉口直径、出口直径、中心倾角及氧枪枪位控制等。结果表明,氧枪喷头优化后,转炉冶炼供氧时间缩短约100 s,耗氧量降低1.81 m3/t,转炉终点钢水磷含量降低了0.01%,减少了点吹,降低了钢铁料的消耗。

Optimization Practice of Parameters for Oxygen Lance Nozzles of 100t Converter

For such problems as long time for supplying oxygen, large consumption of oxygen and high consumption of steels occurred in steelmaking by the 100 t converter in General Steelmaking Plant of Angang Steel Co., Ltd., the old parameters for oxygen lance nozzles were optimized, including the nozzle throat diameter, outlet diameter, dip angle of center and height control of lances. The optimized results show that the oxygen supply time was shortened by about 100 s, the consumption of oxygen was reduced by 1.81 m3 per tone molten steel and the content of phosphorus in molten steel at the end point of converter was reduced by 0.01％, spot blowing times was reduced so that iron and steel materials consumption was reduced.