KR预处理的工艺参数对铁水脱硫效果的影响

Effect of KR Pretreatment Process Parameters on Hot Metal Desulphurization Results

研究了铁水温度、铁水初始硫含量、搅拌时间、旋转速度和脱硫剂加入量对80 t KR铁水预处理装置脱硫效果的影响。结果表明,提高铁水温度,则增大脱硫效果;在铁水硫含量为0．043％-0．046％、铁水温度为1 290～1 310℃时,加入600～650 kg脱硫剂(铁水温度1 340～1 350℃时,加入450-550 kg脱硫剂),搅拌时间5-8 min,旋转速度85～90 r／min,具有较佳的脱硫效果。

The effect of metal temperature, initial sulfur content in metal, stirring time, rotational speed and adding amount of desulphurizer on desulphurization results of a 80 t KR hot metal pretreatment unit has been studied. The results showed that with increasing metal temperature the desulphurizafion effects increased, and with 0.043 % -0. 046% S in metal, metal temperature 1 290- 1 310 ℃, adding desulphurizer 600 - 650 kg （metal temperature 1 340- 1 350 ℃, adding 450 - 550 kg）, stirring 5 - 8 min at rotational speed 85 - 90 round/min, the desulphurizafion effects were better.