摘要
在实验室条件下研究了供氧方式、粉剂用量对高磷铁水(ω[P]≈0.6%)脱磷过程的温降和脱磷率的影响.结果表明,用固体氧脱磷时,渣量多,温降大,磷的氧化速度快,2min已基本结束反应,脱磷率可达89.45%;用气体氧代替部分固体氧脱磷时,渣量少,温降小,但处理时间较长,且影响最终脱磷效果,当气体氧为75%(ω)时,脱磷率仅为51.13%.合理的高磷铁水预脱磷工艺为严格控制固体脱磷剂的用量,用适量的气体氧(25%左右)代替固体氧,控制较短的处理时间.
The effects of oxygen supply method and flux consumption on temperature drop during the dephosphorization process and efficiency of high phosphorus hot iron with about 0.6%（） phosphorus were studied in laboratory.The results revealed that by using pure solid form oxygen the slag volume was big,temperature drop great,and phosphorus oxidation rate was fast,the reaction was basically completed for 2 min with dephosphorization rate up to 89.45% while by partially replacing solid form oxygen with gaseous oxygen,slag volume was smaller,temperature drop less,but the treatment time was longer and the final dephosphorization efficiency was negatively affected.Dephosphorization rate was only 51.13% when gaseous oxygen content reached 75%.The rational dephosphorization pretreatment technology for high phosphorus hot iron should be close control of solid dephosphorization agent consumption,replacement of solid form oxygen with proper amount of gaseous oxygen at about 25% and control of shorter pretreatment time.
出处
《过程工程学报》
CAS
CSCD
北大核心
2011年第1期50-55,共6页
The Chinese Journal of Process Engineering
基金
国家科技支撑计划资助项目(编号:2007BAB15B04)
关键词
高磷铁水
预脱磷
温降
high phosphorus content hot iron
dephosphorization
temperature drop
