摘要
根据渣膜形成机理,开发了渣膜模拟装置,根据显微镜下对渣膜截面的观察,研究了不同实验条件下的渣膜结构即渣膜结晶情况与矿相组成,并分析渣膜结构的影响因素.实验研究结果表明,冷却强度从小变大,渣膜的结晶率整体趋势是减小的,减小的范围大约在10%~25%;当碱度R从1.01增大到1.09时,渣膜结晶率增加了32%,随着F-从2.62%增加到10%,渣膜结晶率增加了24%,Na2O从6%增加到11%时,渣膜结晶率可增加46%左右,但是当Al2O3从1.14%增加到9%时,结晶率却较低了5%.模拟装置所获取的渣膜与实际生产取得的渣膜有相同的结构特征,可用于对保护渣渣膜传热与润滑特性的研究与分析.
An experimental device was designed to prepare slag film according to formation mechanism of slag film, the structure of slag film and composition of mineral phase under different experimental conditions were studied, and the influential factors on the structure of slag film analyzed. The result showed that with the cooling intensity increasing, the slag crystallization ratio was decreased by 10%~25%. When slag basicity was changed from 1.01 to 1.09, the slag crystallization ratio increased by 32%; with F- increasing from 2.62% to 10% or Na2O from 6% to 11%, the slag crystallization ratio was increased by 24% or 46%. Otherwise, when Al2O3 increased from 1.14% to 9%, the slag crystallization ratio was reduced by 5%. The structural characteristics of slag film made by simulation device were similar to those made by practical production, which can be used to study and analyze the heat transfer and lubrication of mold fluxes film.
出处
《过程工程学报》
CAS
CSCD
北大核心
2009年第S1期197-201,共5页
The Chinese Journal of Process Engineering
基金
重庆市自然科学基金资助项目(编号:CSTC2005BB4202)
关键词
保护渣
渣膜
模拟
mould flux
slag film
simulation
