Method and device for on-line measurement of particle size distribution and density of desulfurization slurry by ultrasonic

被引：0
|
作者：
Tian C. [1 ,2 ]
Su M. [1 ,2 ]
Jiang Y. [1 ,2 ]
Xia D. [1 ,2 ]
机构：
[1] School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai
[2] Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 12期
关键词：
Genetic algorithm; Measurement; Particle size distribution; Two-phase flow;
D O I：
10.16085/j.issn.1000-6613.2021-1268
中图分类号：
学科分类号：
摘要：
In this paper, the method and device for on-line measurement of the density and particle size of limestone/gypsum slurry in the flue gas desulfurization based on the ultrasonic attenuation method were studied. Improved differential evolution algorithm with adaptive control parameters was used for particle size inversion, and simulations showed that the improved differential evolution algorithm had higher accuracy. Non-contact measurement section was designed, and the independent transducer mode was adopted to realize non-destructive measurement. An experiment on the relationship between temperature and sound attenuation was carried out, and the method for correcting the sound attenuation value was proposed. A differential evolution algorithm with adaptive control parameters was studied for particle size inversion. Laboratory results verified that the maximum deviation between the concentration measurement results of the method and the concentration analysis result of the sampling method was 1.75%, and the minimum deviation was 0.59%. The test results of the power plant showed that the particle size measurement results of the proposed method were in good agreement with those of the microscope image method and laser particle size analyzer, and the maximum deviation was less than 17%. The density measurement results were in good agreement with the sampling method, the maximum repeatability deviation was only 0.23%, and the maximum deviation between the single measurement result and the sampling method was 0.26%. Both indicators were better than the measurement results of the differential pressure density meter, which could meet the requirements for online measurement of the density and particle size of the limestone/gypsum slurry in the flue gas desulfurization. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：6516 / 6522
页数：6
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