摘要
用行星式球磨机对13个不同尺寸区间氧化硼的研磨过程进行了实验与理论研究.实验测量了13个不同尺寸区间氧化硼的粉碎速率常数及其分布系数,通过对测量结果的分析得到了不同尺寸氧化硼的粉碎速率函数及其分布系数函数,进而建立了粉碎过程质量分数的积分微分方程.用四阶龙格?库塔法对氧化硼研磨过程的质量分数积分微分方程进行了数值计算,并与实验结果进行了比较.计算与比较结果表明,氧化硼的研磨过程具有时变特征.
Grinding of boron oxide particles by a planetary ball mill was studied both experimentally and theoretically. Specific breakage rate and breakage distribution parameter were measured for different size ranges, and the relationships between specific breakage rate and breakage distribution parameter with particle size were obtained from the measured results. An integral-differential equation for the mass fraction in grinding process was built and numerical solutions were carried out. Comparison was made on particle size distribution in different grinding times between measured and predicted data, and the comparison results showed that the specific breakage rate of boron oxide was proportional to grinding time.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2006年第1期67-70,共4页
The Chinese Journal of Process Engineering
基金
大连市科技基金资助项目(编号:2002A1GX107)
关键词
氧化硼
行星球磨
粉碎速率
分布系数
研磨过程模型
时变特征
boron oxide
planetary ball milling
specific breakage rate
breakage distribution parameter
grinding model
acceleration behavior
