摘要
采用微波谐振腔法对钛精矿、焦炭、氧化钛精矿、复合添加剂的吸波特性(εr")进行研究,同时测定其温升曲线。通过对波谱图的衰减值和相对频移分析表明,钛精矿和焦炭具有良好的吸波特性,氧化钛精矿和复合添加剂对微波的吸收能力较差;钛精矿含碳球团具有良好的吸波特性,经微波还原的金属化球团吸波特性好于钛精矿含碳球团吸波特性。温升行为的结果和波谱图的检测结果相吻合。
The microwave-absorbing composite additive were investigated characteristics of ilmenite concentrate, coke, oxidized ilmenite concentrate and by means of microwave cavity perturbation, and their temperature rise curves were measured. Analyses of spectrum attenuation and relative frequency shift showed that the microwave-absorbing characteristics of ilmenite concentrate and coke were good, but those of oxidized ilmenite concentrate and composite additive were poor. The microwave-absorbing characteristic of ilmenite concentrate pellets containing coke was also good, and that of the metallized pellets reduced under microwave heating was better than that of the pellets without being reduced under microwave heating. The temperature rise behavior were in good agreement with the spectrum.
出处
《四川大学学报(工程科学版)》
EI
CAS
CSCD
北大核心
2007年第2期111-115,共5页
Journal of Sichuan University (Engineering Science Edition)
基金
2003年攀枝花产业化资助项目(2003GX-2)
关键词
微波
钛精矿
温升行为
吸波特性
microwave
ilmenite concentrate
temperature increasing behavior
microwave-absorbing characteristics