摘要
研究倒料管路内稠相液体经过射流搅拌后产生的絮状颗粒团在扬液器作用下的倒料过程,并利用CFD-DPM模型分析了在不同管路流速下絮状颗粒团的流动特性。结果表明:当流场流速大于2.0 m/s时颗粒的聚集和分离比较剧烈,有利于形成均匀连续的流动壁膜而不会产生局部堆积形成阻塞,为倒料泵的选型和优化提供理论依据。
In this paper, the pouring process of flocculent particles produced by the thick phase liquid after being stirred by jets in pipeline under the action of liquid lifter was discussed and CFD-DPM model was used to analyze flow characteristics of the flocculent particles under different pipeline flow rates. The results show that, when the flow velocity is above 2.0 m/s, both aggregation and separation of particles becomes more severe, which is conducive to the formation of a uniform and continuous flowing wall film free from local accumulation and blockage. It provides a theoretical basis for selection and optimization of the liquid lifter.
作者
张彧铭
王晓静
ZHANG Yu-ming;WANG Xiao-jing(School of Chemical Engineering,Tianjin University)
出处
《化工机械》
CAS
2023年第1期59-66,共8页
Chemical Engineering & Machinery
