低钛高炉渣脱硫能力研究  

Desulphurization Effect of BF Slag with Low Titanium Content

作　　者：董晓旭[1] 张淑会[1] 兰臣臣 吕庆[1] 

机构地区：[1]华北理工大学冶金与能源学院教育部现代冶金技术重点实验室,河北唐山063009

出　　处：《矿冶工程》2017年第2期88-90,共3页Mining and Metallurgical Engineering

基　　金：河北省钢铁联合基金资助项目(E2015209073);华北理工大学杰出青年基金资助项目(JP201508)

摘　　要：针对某钢厂低钛高炉渣的实际情况,研究了二元碱度(w(CaO)/w(SiO_2))和MgO等化学成分变化对该渣系脱硫能力的影响规律。结果表明,低钛高炉渣的脱硫能力随着炉渣二元碱度增加而提高;当w(MgO)<10%时,炉渣脱硫能力随MgO含量增加而升高,继续增加MgO含量,其脱硫能力反而降低;随着Al_2O_3和TiO_2含量增加,炉渣脱硫能力降低。建议高炉生产炉渣二元碱度保持在1.05~1.10,炉渣MgO含量应保持在9%~10%,同时应适当降低Al_2O_3和TiO_2含量。Influences of dual alkalinity(w(CaO)/w(SiO_2)) and MgO and other chemical compositions on desulphurization effect of BF slag were studied for a sort of BF slag with low titanium content. Results showed that the desulphurization effect of BF slag was improved gradually with an increase in dual alkalinity of BF slag. When w(MgO) < 10%,the desulfurization effect of the slag was initially improved with the increasing of w(MgO),then decreased with a further increase in the MgO content. It also decreased with an increase in the content of Al_2O_3 and TiO_2. It is suggested that BF slag should have dual alkalinity kept at 1. 05 ~ 1. 10 and w(MgO) at 9% ~ 10%,meanwhile have the Al_2O_3 and TiO_2 content appropriately decreased.

关 键 词：高炉渣 低钛渣 脱硫 

分 类 号：TF534[冶金工程—钢铁冶金]