摘要
采用微波谐振腔微扰法测定碳质还原剂和锌窑渣混合物料的吸波特性,研究碳质还原剂配入锌窑渣不同比例时混合物的吸波特性与材料的复介电常数(ε")、微波场内热源强度P(P=ωε"E^2V)的关系。测试和分析结果表明,在粒度为147~175μm条件下,通过比较复介电常数的大小确定了椰壳碳和锌窑渣最佳配比为18%,焦碳和锌窑渣最佳配比为28%,石墨和锌窑渣最佳配比为16%,在此配比条件下得到了ε"和P的最大值,并且3种碳质还原剂和锌窑渣混合物料的吸波特性发生了突变。
The microwave-absorbing characteristics of the mixtures of carbonaceous reducer and zinc-kiln slag were measured by the technique of microwave cavity perturbation and the relationships between P ( P = ωε" E^2 V) and the microwave-absorbing characteristic of the mixtures were studied. The results indicated that when the particle size of the mixtures is in the range of 147 - 175 μm, the optimal proportions are 18% ( coconut's carbon: zinc-kiln slag) ,28% ( coke : zinc-kiln slag) and 16% ( graphite, zinc-kiln slag), respectively. Under those proportions, ε" and P reach sharply to maximums and the characteristics of microwave-absorbing of mixtures change.
出处
《四川大学学报(工程科学版)》
EI
CAS
CSCD
北大核心
2007年第6期96-101,共6页
Journal of Sichuan University (Engineering Science Edition)
基金
云铜资助项目(20060118)
关键词
锌窑渣
配碳量
碳质还原剂
吸波特性
zinc-kiln slag
proportions of carbon
carbonaceous reducer
characteristic of microwave-absorbing