脱硫布袋压差高原因分析和对策  

Reason analysis and countermeasure of high desulphurization bag pressure difference

作　　者：张代华[1] 谢学荣[1] ZHANG Daihua;XIE Xuerong(Ironmaking Plant,Baoshan Iron&Steel Co.,Ltd.,Shanghai 200941,China)

机构地区：[1]宝山钢铁股份有限公司炼铁厂

出　　处：《宝钢技术》2019年第5期68-72,共5页Baosteel Technology

摘　　要：针对四烧结脱硫布袋压差升高的原因进行分析,结果表明系使用高挥发分煤、使用区域外高Cl-浓度废水和大烟道温度控制偏高等多因素所致,采取停用区域外废水、优化兰炭等煤种配比和平均粒度、严格控制烧结大烟道温度和粉煤灰置换等措施,兰炭持续使用4个月,脱硫布袋压差水平保持在2.0 kPa以下,恢复到正常生产水平。The reasons of No.4 sintering’s high desulphurization bag pressure difference are analyzed,the results show that high volatile coal,off-site wastewater Cl ion concentration and high flue temperature are multiple factors lead to high bag pressure difference,after taking measures such as stopping use off-site wastewater,optimizing the proportion and particle size of coal,strict controlling the flue temperature and replacing fly ash,etc.when the semi-coke continues using for 4 months,desulphurization bag pressure difference can be controlled below 2.0 kPa,and the normal production level is restored.

关 键 词：脱硫 布袋 压差 

分 类 号：TF046.4[冶金工程—冶金物理化学]