Influence of a laminarizer at the inlet on the classification performance of a cyclone separator
Influence of a laminarizer at the inlet on the classification performance of a cyclone separator
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DOI：
10.1016/j.seppur.2016.09.053
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发表时间：
2017-03
影响因子：
8.6
通讯作者：
A. Huang;Norio Maeda;D. Shibata;Tomonori Fukasawa;Hideto Yoshida;H. Kuo;K. Fukui
中科院分区：
文献类型：
--
作者：
A. Huang;Norio Maeda;D. Shibata;Tomonori Fukasawa;Hideto Yoshida;H. Kuo;K. Fukui
在旋风分离器的入口处组装了由 15 个管组组成的层压机。通过实验和数值模拟来检验层流器对旋风分离器压降、部分分离效率、气体切向速度分布、入口处颗粒分布和 50% 切割尺寸的影响。使用层流器略微增加了旋风分离器上的压降，并略微降低了气体切向速度。层流器改变了入口处的空气质量流量和颗粒流分布。它增加了通过入口外部的空气质量流量。在入口气体速度为 11 m/s 时，安装层流器使流经入口内部的颗粒数量减少了 20.2%。入口外部的颗粒物浓度较高，颗粒物进入主体后更容易被捕获。在入口气体速度为 11 m/s 时，使用层流器使旋风分离器的压降增加了 8.1%，并将旋风分离器的 50% 切割尺寸从 2.04 μm 减小到 1.89 μm。
A laminarizer consisting of a bank of 15 tubes was assembled at the entrance of a cyclone. Experiments and numerical simulations were performed to examine the influence of the laminarizer on the pressure drop across the cyclone, partial separation efficiency, gas tangential velocity distribution, particle distribution at the entrance, and 50% cut size. Using the laminarizer slightly increased the pressure drop across the cyclone and slightly reduced the gas tangential velocity. The laminarizer altered the air mass flow rate and particle flow distribution at the entrance. It increased the air mass flow rate through the outer part of the entrance. At an inlet gas velocity of 11 m/s, installing the laminarizer reduced the number of particles flowing through the inner part of the entrance by 20.2%. Higher particle concentrations were found at the outer part of the entrance, where the particles were more easily captured after entering the main body. At an inlet gas velocity of 11 m/s, using the laminarizer increased the pressure drop across the cyclone by 8.1% and reduced the 50% cut size of the cyclone from 2.04 μm to 1.89 μm.