海砂矿和高炉粉尘复合造块还原试验  

Feasibility of the Synergistic Utilization of Ironsand and Blast Furnace Bag Dust

作　　者：刘依然[1] 张建良[1] 王振阳[1] 刘征建[1] 邢相栋[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]西安建筑科技大学冶金工程学院,陕西西安710055

出　　处：《钢铁钒钛》2015年第5期87-91,共5页Iron Steel Vanadium Titanium

基　　金：国家重点基础研究发展计划资助项目(2012CB720400)

摘　　要：针对海砂矿和高炉布袋灰在化学成分和粒度分布方面的互补性,对海砂矿/高炉布袋灰的协同利用进行可行性研究,通过海砂矿/高炉布袋灰复合压块还原试验,考察了还原温度和矿灰比对产物金属化率、残碳量和抗压强度的影响。研究结果表明:二者协同利用具有良好的可行性,试验以还原温度1 200℃、矿灰比(海砂矿:高炉布袋灰质量比)3.2最佳,在此条件下氩气气氛中还原30 min,产物金属化率和抗压强度分别可达91.21%和150.1N/个。Due to strongly complementary of ironsand to blast furnace bag dust in terms of the chemical composition and size distribution,the feasibility of synergistic utilization of ironsand and blast furnace bag dust had been investigated where the reduction experiments using ironsand- BF bag dust compound briquettes had been conducted to understand the effects of the ore / dust mass ratio and the reduction temperature on the reduction procedure and the product properties,such as the metallization and compress strength. The results shows that it is technically feasible and the optimal parameters are temperature of 1 200 ℃ and ore / dust mass ratio of 3. 2. The products metallization and compress strength reach to 91. 21% and 150. 1 N per briquette respectively after being reduced for 30 minutes under the gained experiment conditions.

关 键 词：海砂矿 高炉布袋灰 复合压块 金属化率 

分 类 号：TF046.6[冶金工程—冶金物理化学]