钒渣富氧钙化焙烧试验研究  

Research of Vanadium Slag Roasting Technology by Oxygen-enriched Calcium Method

作　　者：付自碧[1] 彭毅[1] 何文艺[1] 高官金[1] 申彪[1] 卢晓林[1] 

机构地区：[1]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《钢铁钒钛》2014年第4期1-5,共5页Iron Steel Vanadium Titanium

摘　　要：针对钒渣钙化焙烧温度过高导致物料烧结、回转窑结圈的问题,采用提高焙烧气氛氧含量的方法,强化焙烧动力学条件,降低焙烧温度,并进行了富氧钙化焙烧实验室试验和工业试验研究。研究结果表明:在控制尾气氧含量12%～14%的情况下,焙烧温度从富氧前的920～940℃降低到富氧后的870～885℃,降低了约50℃;工业试验过程中,物料绝大部分为粉料,回转窑运行正常,焙烧获得的钒转浸率为89.58%。采用钒渣富氧钙化焙烧技术,解决了焙烧设备不能正常运行的问题,实现了钒渣不配尾渣直接焙烧。According to the problems of sintering and ringing in rotary kiln caused by the high temperature during roasting the vanadium slag with calcium,the roasting dynamic conditions were enhanced and the roasting temperature was reduced by increasing the oxygen content in the intake air. Both of the laboratory and industrial experiments were conducted,and the results show that roasting temperature,920～940 ℃ before the experiments,decreases to 870 ～ 885 ℃ after adopting the oxygen-enriched roasting by controlling the oxygen content in the outlet air in the range of 12% ～ 14%. During the industrial tests,most of the clinker exists in the form of powder and the leaching rate of vanadium is 89. 58%,coupled with normal operation of the rotary kiln. The operation problems of the roasting equipment are resolved.Meanwhile,roasting vanadium slag without tailings is realized by employing the oxygen-enriched calcium method.

关 键 词：钒渣 钙化焙烧 富氧 焙烧温度 

分 类 号：TF841.3[冶金工程—有色金属冶金]