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Experimental Investigation of the Swirl Flow Enhancement Effect on the Particle Drying Process in a Novel Spouted Bed
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2021-09-08 , DOI: 10.1021/acs.iecr.1c02838
Haojie Duan 1 , Feng Wu 1 , Shengning Zhao 1 , Xiaoxun Ma 1 , Wanlong Liang 1 , Tangqi Ding 1
Affiliation  

The swirl flow effect was introduced in the spouting bed to change the velocity and volume distribution of the gas phase in different directions, strengthen the radial disturbance, increase the contact area, and optimize the mass transfer, heat transfer, and transmission efficiency of the two-phase flow in the spouted bed. The drying efficiencies of a conventional spouted bed and a spouted bed with an integral swirling blade nozzle (ISBN) under various particle diameters, filling weights, and drying temperatures were experimentally studied. It was found that under the same conditions, the drying activation energy of the ISBN increased, the drying time was shortened, the drying rate increased, the moisture diffusion in the bed accelerated, and the unit energy consumption decreased. When T = 70 °C, d = 1.5 mm, and m = 66 g, the ISBN drying efficiency was the highest.

中文翻译:

新型喷射床中颗粒干燥过程中旋流增强效应的实验研究

在喷射床中引入涡流效应,改变不同方向气相的速度和体积分布,加强径向扰动,增加接触面积,优化两者的传质、传热和传输效率。喷射床中的相流。实验研究了传统喷射床和带有一体式旋流叶片喷嘴 (ISBN) 的喷射床在不同粒径、填充重量和干燥温度下的干燥效率。结果发现,在相同条件下,ISBN的干燥活化能增加,干燥时间缩短,干燥速度加快,床层水分扩散加快,单位能耗降低。当T = 70 °C 时,d = 1.5 mm,m = 66 g,ISBN 干燥效率最高。
更新日期:2021-09-22
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