作　　者： ; ; ; ;

机构地区： 西南大学工程技术学院

出　　处： 《农业工程学报》 2011年第6期137-142,共6页

摘　　要： 为提高行星式双螺旋混合机性能并优化其参数,该文试验研究了混合工艺参数对高粘度料浆混合均匀度的影响。给出了基于密度的分离强度的定义,用以评价高粘度料浆混合均匀度。采用正交试验设计技术,以及极差和方差分析方法,获得了混合工艺参数对料浆混合均匀度的影响及影响的显著性程度。试验及分析结果表明:料浆组分因子的平均分离强度变化值为138.275,远大于其它组分因子变化值;在显著性水平为0.10的条件下,料浆组分对混合均匀度影响显著;料浆中固相组分的颗粒尺寸越大,越不利于料浆混合均匀度的提高。为了使取样更具代表性,提出了一种三维取样模型。 For promoting performance and optimizing parameters of planetary twin screw mixers that process a high-viscous flow,an approach for the impact of mixing parameters on mixture homogeneity of the mixing slurry was proposed in this study.Definition of density-based intensity of segregation （DBIOS） was presented to evaluate mixture homogeneity of the slurry.By means of orthogonal factorial experiment design technique and statistical analyses of range and variance,major parameters of the mixing process and their significance affecting the mixture homogeneity were obtained.Experimental and analysis results showed that the delta value of mean DBIOS of ingredient factor of the slurry was 138.275,much larger than that of other factors;Ingredient factor significantly contributed to the mixture homogeneity at a significance level of 0.10;Ingredient of coarse solid phase particle had bad performance of mixture homogeneity.A 3-D sampling model was presented for good representation of the samples being taken in this study as well.

关 键 词： 双螺旋混合机 混合均匀度 分离强度 试验设计 方差分析

领　　域： [农业科学] [农业科学] [化学工程]