钒渣作为水泥混合材的应用研究  

Application Research of Vanadium Slag as Cement Admixture

作　　者：徐浩[1,2] 陈星[2] 程稳 王宏伟 吴鹏 沈卫国[2] 

机构地区：[1]葛洲坝老河口水泥有限公司,湖北老河口441800 [2]武汉理工大学材料科学与工程学院,湖北武汉430070 [3]襄阳市公路管理局,湖北襄阳441000 [4]湖北楚晟科路桥技术开发有限公司,湖北武汉430070

出　　处：《新世纪水泥导报》2016年第5期1-3,92,共3页Cement guide for new epoch

摘　　要：低品位石煤提钒工艺产生大量钒渣尾渣,传统堆放处理方式不仅占用大量土地,且造成严重生态污染。实验在水泥配料中加入钒渣替代当前比例的粉煤灰、混渣生产32.5等级水泥。研究表明:掺加钒渣可延长水泥凝结时间,对水泥抗压强度影响较小,抗折强度有较小幅度下降,但均符合32.5等级水泥性能指标;钒渣作为水泥混合材可充分消纳废弃资源,减少环境污染;掺加钒渣每吨水泥可降低成本0.3元,工业化生产经济效益显著。因此,钒渣作为水泥混合材具有良好的技术经济效益。Low-grade stone coal aciding vanadium tailing produced a large number of vanadium slag tailings, and the traditional processing approach—stockpiling not only took up a lot of land, but also caused serious ecological pollution. To produce 32.5 degrade cement, the cement compounding consist of certain vanadium slag replacing of equal fly ash and mixing slag. The research shows that: By adding vanadium slag. the cement setting time was extended, the influence on the cement compressive strength was low. and the flexural strength has a modest decline, but the properties conformed to 32.5 grade cement performance indicators; as a cement admixture, the process sufficiently consumptive much waste resources and reduced environmental pollution: the process reduced the cost of 0.3 yuan per ton of cement by adding vanadium slag, economic benefits was significant in commercial production. Thus, as a cement admixture, vanadium slag had prominent technical and economic benefits.

关 键 词：石煤提钒 钒渣 水泥混合材 技术经济效益 

分 类 号：TQ172.77[化学工程—水泥工业]