Application of image analysis on agglomeration of thickeners

被引：0
|
作者：
Lin D. [1 ]
Wei H. [1 ]
Dang L. [1 ]
机构：
[1] School of Chemical Engineering and Technology, Tianjin University, Tianjin
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 07期
关键词：
Agglomerate; Deagglomeration; Distortion correction; High shear mixer; Image analysis; Thickener;
D O I：
10.16085/j.issn.1000-6613.2020-1503
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In toothpaste process, thickeners such as carboxymethyl cellulose and carbomer tend to form agglomerates in high shear mixers (HSMs), which will cause quality problems as well as disturb normal production. To investigate the influence of different operational conditions of HSMs on agglomerates, the image analysis method based on software Photoshop and Image J was applied to measure the area and total count of agglomerates in a HSM. The influence of rotational speeds, circulating number and total energy input was analyzed. The results showed that the at 1700-2600r/min, the areas of about half number of agglomerates are in the range of 0.5-1.5mm2. At 1700-2000r/min, as the circulating number increases, the normalized total count fluctuates significantly. At 2150-2600r/min, as the circulating number increases, the normalized total count decreases without fluctuation. The total energy input is key factor that controls the total count of agglomerates and when total energy input reaches 1000kJ, the total count of agglomerates decreases to the minimum value. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：3591 / 3597
页数：6
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