高温改性及风淬处理对钢渣易磨性影响的工业性试验研究  

Industrial test research on grindability of steel slag by high temperature modifying and air quenching

作　　者：饶磊 吴六顺[3] 周云[3] 王珏[3] 董元篪[3] 邱艳生[2] 张耀辉[2] 马孟臣[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]马鞍山钢铁股份有限公司,安徽马鞍山243000 [3]安徽工业大学冶金与资源学院,安徽马鞍山243002

出　　处：《炼钢》2017年第6期73-77,共5页Steelmaking

基　　金：国家自然科学基金资助项目(51774001,51534001)

摘　　要：通过工业性试验,采用向高温热态钢渣中掺入5%粉煤灰对钢渣进行改质,并采用风淬工艺处理。结果表明:与原渣相比,改性风淬钢渣中铁酸钙相、硅酸二钙和镁蔷薇辉石的含量升高,金属Fe、RO和自由CaO量降低。研磨试验结果显示:在相同的研磨条件下,改性风淬钢渣微粉表面积比未改性钢渣微粉高22.4%。理论分析表明:改质后并风淬处理,可有效降低难磨矿相Fe和RO的含量,提高钢渣的易磨性。该结果为钢渣微粉化处理提供理论支持和新的技术方向。Industrial trial was carried out by adding 5 % fly ash into molten steelmaking slag and air- granulation process. The experimental results show, compared with the original slag, the content of calcium ferrite, dicalcium silicate and merwinite in the modified slag increase, and the content of Fe, RO and free CaO decreases. The results of grinding test show that the surface area of the powder of the modified steelmaking slag is 22.4 % higher than that of the unmodified steelmaing slag. The theoretical analysis shows that the content of Fe and RO phase can be reduced effectively after the modification and air quenching, which improvies the grindability of the steelmaking slag. The results orovide theoretical support and new technical direction for steehnaking slag processine.

关 键 词：钢渣 高温改性 风淬 工业性试验 易磨性 

分 类 号：X757[环境科学与工程—环境工程]