Characterization of transverse mixing in a screw mixer by image analysis

被引：6

作者：

Huo, Chaofei ^{[1
,2
]}

Feng, Ping ^{[1
,2
]}

Fan, Chuigang ^{[1
]}

Lin, Weigang ^{[1
]}

Song, Wenli ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing, Peoples R China

来源：

DRYING TECHNOLOGY | 2016年 / 34卷 / 02期

关键词：

Image analysis; screw mixer; solidification; transverse mixing; PARTICLE TRACKING VELOCIMETRY; X-RAY VISUALIZATION; GRANULAR-MATERIALS; CONVEYOR DRYER; POWDER FLOW; POSITRON CAMERA; ROTATING DRUMS; FEEDER; SEGREGATION; PERFORMANCE;

D O I：

10.1080/07373937.2015.1036285

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Transverse mixing of particles in a screw mixer is investigated by a digitized image analysis method coupled with a solidification technique. The effects of screw rotation speed, filling level, and particle size on the transverse mixing index and mixing rate constant are investigated experimentally. The results show that a decrease in screw rotation speed and filling level results in an increase in the mixing rate. Faster mixing is observed with large particles, and the mixing rate constant of coarse particles is 1.5-2 times higher than that of fine particles. The particle size difference of materials puts the particles at a risk of segregation.

引用

页码：194 / 205

页数：12

共 47 条

[1] Modeling continuous powder mixing by means of the theory of Markov chains [J].