摘要
为了降低烧结运行成本、拓宽半焦产业利用途径,以陕北固体热载体半焦为研究对象,选取不同的半焦与焦炭配加比进行了烧结杯实验。结果表明,半焦样品具有低灰低硫、高固定碳的特点,粒度分布符合烧结要求;半焦表面存在发达的孔隙结构,化学活性高,有利于氧化气氛向正方向进行;半焦配比达到35%时得到的烧结产品性质较优,验证实验得到的各指标平均值为:垂直烧结速度23.69 mm/min,烧结成品率77.0%,转鼓强度指数66.6%,Fe O含量8.63%,烧结矿品位53.52%。
In order to cut the sintering cost as well as broaden the utilization of semi-coke,a sinter post test was conducted for the semi-coke,a solid thermal carrier from northern Shaanxi,with different ratio of semi-coke to coke.From test,it is found that the sample of semi-coke has low ash and low sulfur,and high fixed carbon,with size distribution up to the requirement for sintering. Besides,the surface of semi-coke shows a developed pore structure,with high chemical activity,thus beneficial to atmosphere oxidized toward the positive direction. With a ratio of semi-coke to coke up to 35%,a sintered product with superior quality could be obtained. And the verification test showed the indexes by an average as follows： a vertical sintering rate at 23.69 mm/min,rate of qualified sintered product at 77.0%,a drum strength index at 66.6%,the sintered product with FeO content of 8.63% with a grade of 53.52%.
作者
杨双平
王琛
杨波
魏起书
王玖宏
YANG Shuang-ping;WANG Chen;YANG Bo;WEIQl-shu;WANG Jlu-hong(School of Metallurgical Engineering,Xi＇an University of Architecture and Technology,Xi＇an 710055,Shaanxi,China;No9 Metallurgical Construction Croup Co Ltd,Hanzhong 723000,Shaanxi,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2018年第2期79-82,共4页
Mining and Metallurgical Engineering
基金
陕西省科技厅统筹项目(2011KTDZ01-05-03-01)
关键词
半焦
烧结矿
微观结构
反应活性
燃料配比
semi-coke
sintered ore
microstructure
reactivity
fuel ratio
