化工学报2018，Vol.69Issue(1)：371-380,10.DOI:10.11949/j.issn.0438-1157.20171196
螺旋输送器中颗粒混合过程的模拟
Simulation on mixing granular materials in screw conveyor
摘要
Abstract
Flowing and mixing granular materials of two different sizes and densities in an industrial-scale screw conveyor was studied by computer simulation using the discrete element method(DEM).Quantitative analysis results by the Lacey mixing index showed that mixing performance of the screw conveyor was dependent strongly on operational conditions and structural dimensions.Both screw rotating speed and material feeding rate had dominant effects on mixing efficiency, followed by granular material sizes and screw pitch in the mixing region.To reduce energy consumption and improve mixing performance in production, reasonable operation parameters of screw conveyors could be selected according to these findings.关键词
颗粒/离散单元法/螺旋输送器/混合机理/大规模模拟Key words
granular material/discrete element method/screw conveyor/mixing mechanism/large-scale simulation分类
化学化工引用本文复制引用
戚华彪,徐骥,宋文立,葛蔚..螺旋输送器中颗粒混合过程的模拟[J].化工学报,2018,69(1):371-380,10.基金项目
中国科学院战略性先导科技专项(XDA07080000) （XDA07080000）
国家自然科学基金项目(91434201) （91434201）
中国科学院前沿科学重点研究项目(QYZDJ-SSW- JSC029) （QYZDJ-SSW- JSC029）
中国科学院科技创新交叉与合作团队. supported by the "Strategic Priority Research Program" of the Chinese Academy of Sciences (XDA07080000),the National Natural Science Foundation of China (91434201),the Key Research Program of Frontier Science,CAS (QYZDJ-SSW-JSC029) and the CAS Interdisciplinary Innovation Team. （XDA07080000）
