摘要
目的:通过二次回归旋转正交试验进行参数优化,建立选择因素与蛋壳超微粉体颗粒粒径的变化规律。方法:利用可调参数式行星球磨机对蛋壳进行超微粉碎,研究粉碎时间、公转盘转速、球料比、填充率对粒径的影响。结果:得到最优的理论组合为填充率21.46%、粉碎时间3.67h、公转盘转速421.83r/min、球料比5.97g/g。采用激光粒度仪测量粒径,此时蛋壳颗粒粒径的中位径(d50)可达3.49μm,比表面积为1650.08m2/kg。结论:蛋壳超微粉碎后,粒度达到微米级,经过二次回归旋转正交试验得到最优化的粉碎参数。
The preparation of superfine ground eggshell powder was carried out using an adjustable planetary ball mill.Quadratic orthogonal rotary composite design combined with response surface methodology was used to optimize four operating parameters including grinding time,grinding speed,ball-to-material ratio and filling rate.The specific surface area of eggshell powder was investigated with regard to the four parameters.The optimal preparation conditions for superfine ground eggshell powder were filling rate of 21.46%,grinding time of 3.67 h,grinding speed of 421.83 r/min and ball-to-material ratio of 5.97 g/g.Under these conditions,the particle size d50 determined using a laser particle size analyzer was 3.49 μm,reaching micron-grade and the specific surface area was 1650.08 m2/kg.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第12期331-335,共5页
Food Science
基金
黑龙江省教育厅2009科学技术研究面上项目(11541257)
关键词
蛋壳
超微粉碎
参数优化
eggshell
superfine grinding
parameter optimization
